[dm-devel] [PATCH v3 0/3] Introduce provisioning primitives for thinly provisioned storage

[dm-devel] [PATCH v3 0/3] Introduce provisioning primitives for thinly provisioned storage

[Sarthak Kukreti]

Hi,

This patch series adds a mechanism to pass through provision requests on
stacked thinly provisioned block devices.

The linux kernel provides several mechanisms to set up thinly provisioned
block storage abstractions (eg. dm-thin, loop devices over sparse files),
either directly as block devices or backing storage for filesystems. Currently,
short of writing data to either the device or filesystme, there is no way for
users to pre-allocate space for use in such storage setups. Consider the
following use-cases:

1) Suspend-to-disk and resume from a dm-thin device: In order to ensure that
   the underlying thinpool metadata is not modified during the suspend
   mechanism, the dm-thin device needs to be fully provisioned.
2) If a filesystem uses a loop device over a sparse file, fallocate() on the
   filesystem will allocate blocks for files but the underlying sparse file
   will remain intact.
3) Another example is virtual machine using a sparse file/dm-thin as a storage
   device; by default, allocations within the VM boundaries will not affect
   the host.
4) Several storage standards support mechanisms for thin provisioning on
   real hardware devices. For example:
   a. The NVMe spec 1.0b section 2.1.1 loosely talks about thin provisioning:
      "When the THINP bit in the NSFEAT field of the Identify Namespace data
       structure is set to ‘1’, the controller ... shall track the number of
       allocated blocks in the Namespace Utilization field"
   b. The SCSi Block Commands reference - 4 section references "Thin
      provisioned logical units",
   c. UFS 3.0 spec section 13.3.3 references "Thin provisioning".

In all the above situations, currently, the only way for pre-allocating space
is to issue writes (or use WRITE_ZEROES/WRITE_SAME). However, that does not
scale well with larger pre-allocation sizes.

This patchset introduces primitives to support block-level provisioning (note:
the term 'provisioning' is used to prevent overloading the term
'allocations/pre-allocations') requests across filesystems and block devices.
This allows fallocate() and file creation requests to reserve space across
stacked layers of block devices and filesystems. Currently, the patchset covers
a prototype on the device-mapper targets, loop device and ext4, but the same
mechanism can be extended to other filesystems/block devices as well as extended
for use with devices in 4 a-c.

Patch 1 introduces REQ_OP_PROVISION as a new request type.
The provision request acts like the inverse of a discard request; instead
of notifying lower layers that the block range will no longer be used, provision
acts as a request to lower layers to provision disk space for the given block
range. Real hardware storage devices will currently disable the provisioing
capability but for the standards listed in 4a.-c., REQ_OP_PROVISION can be
overloaded for use as the provisioing primitive for future devices.

Patch 2 implements REQ_OP_PROVISION handling for some of the device-mapper
targets. Device-mapper targets will usually mirror the support of underlying
devices. This patch also enables the use of fallocate in mode == 0 for block
devices.

Patch 3 wires up the loop device handling of REQ_OP_PROVISION and calls
fallocate() with mode 0 on the underlying file/block device.

Testing:
--------
- Tested on a VM running a 6.2 kernel.

- Preallocation of dm-thin devices:
As expected, avoiding the need to zero out thinly-provisioned block devices to
preallocate space speeds up the provisioning operation significantly:

The following was tested on a dm-thin device set up on top of a dm-thinp with
skip_block_zeroing=true.
A) Zeroout was measured using `fallocate -z ...`
B) Provision was measured using `fallocate -p ...`.

Size	Time	A	B
512M	real	1.093	0.034
	user	0	0
	sys	0.022	0.01
1G	real	2.182	0.048
	user	0	0.01
	sys	0.022	0
2G	real	4.344	0.082
	user	0	0.01
	sys	0.036	0
4G	real	8.679	0.153
	user	0	0.01
	sys	0.073	0
8G	real	17.777	0.318
	user	0	0.01
	sys	0.144	0

Changelog:

V3:
- Drop FALLOC_FL_PROVISION and use mode == 0 for provision requests.
- Drop fs-specific patches; will be sent out in a follow up series.
- Fix missing shared block handling for thin snapshots.

V2:
- Fix stacked limit handling.
- Enable provision request handling in dm-snapshot
- Don't call truncate_bdev_range if blkdev_fallocate() is called with
  FALLOC_FL_PROVISION.
- Clarify semantics of FALLOC_FL_PROVISION and why it needs to be a separate flag
  (as opposed to overloading mode == 0).

Sarthak Kukreti (3):
  block: Introduce provisioning primitives
  dm: Add support for block provisioning
  loop: Add support for provision requests

 block/blk-core.c              |   5 ++
 block/blk-lib.c               |  53 ++++++++++++++++
 block/blk-merge.c             |  18 ++++++
 block/blk-settings.c          |  19 ++++++
 block/blk-sysfs.c             |   8 +++
 block/bounce.c                |   1 +
 block/fops.c                  |  14 +++--
 drivers/block/loop.c          |  42 +++++++++++++
 drivers/md/dm-crypt.c         |   4 +-
 drivers/md/dm-linear.c        |   1 +
 drivers/md/dm-snap.c          |   7 +++
 drivers/md/dm-table.c         |  25 ++++++++
 drivers/md/dm-thin.c          | 110 +++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |   4 ++
 include/linux/bio.h           |   6 +-
 include/linux/blk_types.h     |   5 +-
 include/linux/blkdev.h        |  16 +++++
 include/linux/device-mapper.h |  11 ++++
 18 files changed, 333 insertions(+), 16 deletions(-)

-- 
2.40.0.634.g4ca3ef3211-goog

--
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dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v3 0/3] Introduce provisioning primitives for thinly provisioned storage

[Sarthak Kukreti]

Hi,

This patch series adds a mechanism to pass through provision requests on
stacked thinly provisioned block devices.

The linux kernel provides several mechanisms to set up thinly provisioned
block storage abstractions (eg. dm-thin, loop devices over sparse files),
either directly as block devices or backing storage for filesystems. Currently,
short of writing data to either the device or filesystme, there is no way for
users to pre-allocate space for use in such storage setups. Consider the
following use-cases:

1) Suspend-to-disk and resume from a dm-thin device: In order to ensure that
   the underlying thinpool metadata is not modified during the suspend
   mechanism, the dm-thin device needs to be fully provisioned.
2) If a filesystem uses a loop device over a sparse file, fallocate() on the
   filesystem will allocate blocks for files but the underlying sparse file
   will remain intact.
3) Another example is virtual machine using a sparse file/dm-thin as a storage
   device; by default, allocations within the VM boundaries will not affect
   the host.
4) Several storage standards support mechanisms for thin provisioning on
   real hardware devices. For example:
   a. The NVMe spec 1.0b section 2.1.1 loosely talks about thin provisioning:
      "When the THINP bit in the NSFEAT field of the Identify Namespace data
       structure is set to ‘1’, the controller ... shall track the number of
       allocated blocks in the Namespace Utilization field"
   b. The SCSi Block Commands reference - 4 section references "Thin
      provisioned logical units",
   c. UFS 3.0 spec section 13.3.3 references "Thin provisioning".

In all the above situations, currently, the only way for pre-allocating space
is to issue writes (or use WRITE_ZEROES/WRITE_SAME). However, that does not
scale well with larger pre-allocation sizes.

This patchset introduces primitives to support block-level provisioning (note:
the term 'provisioning' is used to prevent overloading the term
'allocations/pre-allocations') requests across filesystems and block devices.
This allows fallocate() and file creation requests to reserve space across
stacked layers of block devices and filesystems. Currently, the patchset covers
a prototype on the device-mapper targets, loop device and ext4, but the same
mechanism can be extended to other filesystems/block devices as well as extended
for use with devices in 4 a-c.

Patch 1 introduces REQ_OP_PROVISION as a new request type.
The provision request acts like the inverse of a discard request; instead
of notifying lower layers that the block range will no longer be used, provision
acts as a request to lower layers to provision disk space for the given block
range. Real hardware storage devices will currently disable the provisioing
capability but for the standards listed in 4a.-c., REQ_OP_PROVISION can be
overloaded for use as the provisioing primitive for future devices.

Patch 2 implements REQ_OP_PROVISION handling for some of the device-mapper
targets. Device-mapper targets will usually mirror the support of underlying
devices. This patch also enables the use of fallocate in mode == 0 for block
devices.

Patch 3 wires up the loop device handling of REQ_OP_PROVISION and calls
fallocate() with mode 0 on the underlying file/block device.

Testing:
--------
- Tested on a VM running a 6.2 kernel.

- Preallocation of dm-thin devices:
As expected, avoiding the need to zero out thinly-provisioned block devices to
preallocate space speeds up the provisioning operation significantly:

The following was tested on a dm-thin device set up on top of a dm-thinp with
skip_block_zeroing=true.
A) Zeroout was measured using `fallocate -z ...`
B) Provision was measured using `fallocate -p ...`.

Size	Time	A	B
512M	real	1.093	0.034
	user	0	0
	sys	0.022	0.01
1G	real	2.182	0.048
	user	0	0.01
	sys	0.022	0
2G	real	4.344	0.082
	user	0	0.01
	sys	0.036	0
4G	real	8.679	0.153
	user	0	0.01
	sys	0.073	0
8G	real	17.777	0.318
	user	0	0.01
	sys	0.144	0

Changelog:

V3:
- Drop FALLOC_FL_PROVISION and use mode == 0 for provision requests.
- Drop fs-specific patches; will be sent out in a follow up series.
- Fix missing shared block handling for thin snapshots.

V2:
- Fix stacked limit handling.
- Enable provision request handling in dm-snapshot
- Don't call truncate_bdev_range if blkdev_fallocate() is called with
  FALLOC_FL_PROVISION.
- Clarify semantics of FALLOC_FL_PROVISION and why it needs to be a separate flag
  (as opposed to overloading mode == 0).

Sarthak Kukreti (3):
  block: Introduce provisioning primitives
  dm: Add support for block provisioning
  loop: Add support for provision requests

 block/blk-core.c              |   5 ++
 block/blk-lib.c               |  53 ++++++++++++++++
 block/blk-merge.c             |  18 ++++++
 block/blk-settings.c          |  19 ++++++
 block/blk-sysfs.c             |   8 +++
 block/bounce.c                |   1 +
 block/fops.c                  |  14 +++--
 drivers/block/loop.c          |  42 +++++++++++++
 drivers/md/dm-crypt.c         |   4 +-
 drivers/md/dm-linear.c        |   1 +
 drivers/md/dm-snap.c          |   7 +++
 drivers/md/dm-table.c         |  25 ++++++++
 drivers/md/dm-thin.c          | 110 +++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |   4 ++
 include/linux/bio.h           |   6 +-
 include/linux/blk_types.h     |   5 +-
 include/linux/blkdev.h        |  16 +++++
 include/linux/device-mapper.h |  11 ++++
 18 files changed, 333 insertions(+), 16 deletions(-)

-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v3 1/3] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  8 ++++++
 block/bounce.c            |  1 +
 block/fops.c              | 14 ++++++++---
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 138 insertions(+), 7 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..202aa78f933e 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -132,6 +132,12 @@ static ssize_t queue_max_discard_segments_show(struct request_queue *q,
 	return queue_var_show(queue_max_discard_segments(q), page);
 }
 
+static ssize_t queue_max_provision_sectors_show(struct request_queue *q,
+		char *page)
+{
+	return queue_var_show(queue_max_provision_sectors(q), (page));
+}
+
 static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(q->limits.max_integrity_segments, page);
@@ -599,6 +605,7 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
 QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
 
 QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
+QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
 QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
 QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
@@ -648,6 +655,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_max_sectors_entry.attr,
 	&queue_max_segments_entry.attr,
 	&queue_max_discard_segments_entry.attr,
+	&queue_max_provision_sectors_entry.attr,
 	&queue_max_integrity_segments_entry.attr,
 	&queue_max_segment_size_entry.attr,
 	&elv_iosched_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..f82da2fb8af0 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -625,7 +625,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	int error;
 
 	/* Fail if we don't recognize the flags. */
-	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
+	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
 		return -EOPNOTSUPP;
 
 	/* Don't go off the end of the device. */
@@ -649,11 +649,17 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	filemap_invalidate_lock(inode->i_mapping);
 
 	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
+	if (mode != 0) {
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+	}
 
 	switch (mode) {
+	case 0:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v3 1/3] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  8 ++++++
 block/bounce.c            |  1 +
 block/fops.c              | 14 ++++++++---
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 138 insertions(+), 7 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..202aa78f933e 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -132,6 +132,12 @@ static ssize_t queue_max_discard_segments_show(struct request_queue *q,
 	return queue_var_show(queue_max_discard_segments(q), page);
 }
 
+static ssize_t queue_max_provision_sectors_show(struct request_queue *q,
+		char *page)
+{
+	return queue_var_show(queue_max_provision_sectors(q), (page));
+}
+
 static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(q->limits.max_integrity_segments, page);
@@ -599,6 +605,7 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
 QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
 
 QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
+QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
 QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
 QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
@@ -648,6 +655,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_max_sectors_entry.attr,
 	&queue_max_segments_entry.attr,
 	&queue_max_discard_segments_entry.attr,
+	&queue_max_provision_sectors_entry.attr,
 	&queue_max_integrity_segments_entry.attr,
 	&queue_max_segment_size_entry.attr,
 	&elv_iosched_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..f82da2fb8af0 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -625,7 +625,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	int error;
 
 	/* Fail if we don't recognize the flags. */
-	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
+	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
 		return -EOPNOTSUPP;
 
 	/* Don't go off the end of the device. */
@@ -649,11 +649,17 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	filemap_invalidate_lock(inode->i_mapping);
 
 	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
+	if (mode != 0) {
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+	}
 
 	switch (mode) {
+	case 0:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.0.634.g4ca3ef3211-goog

Re: [dm-devel] [PATCH v3 1/3] block: Introduce provisioning primitives

[Brian Foster]

On Thu, Apr 13, 2023 at 05:02:17PM -0700, Sarthak Kukreti wrote:
> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/blk-core.c          |  5 ++++
>  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
>  block/blk-merge.c         | 18 +++++++++++++
>  block/blk-settings.c      | 19 ++++++++++++++
>  block/blk-sysfs.c         |  8 ++++++
>  block/bounce.c            |  1 +
>  block/fops.c              | 14 ++++++++---
>  include/linux/bio.h       |  6 +++--
>  include/linux/blk_types.h |  5 +++-
>  include/linux/blkdev.h    | 16 ++++++++++++
>  10 files changed, 138 insertions(+), 7 deletions(-)
> 
...
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..f82da2fb8af0 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -625,7 +625,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	int error;
>  
>  	/* Fail if we don't recognize the flags. */
> -	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> +	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
>  		return -EOPNOTSUPP;
>  
>  	/* Don't go off the end of the device. */
> @@ -649,11 +649,17 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	filemap_invalidate_lock(inode->i_mapping);
>  
>  	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> +	if (mode != 0) {
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +	}
>  
>  	switch (mode) {
> +	case 0:
> +		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> +					       len >> SECTOR_SHIFT, GFP_KERNEL);
> +		break;

I would think we'd want to support any combination of
FALLOC_FL_KEEP_SIZE and FALLOC_FL_UNSHARE_RANGE..? All of the other
commands support the former modifier, for one. It also looks like if
somebody attempts to invoke with mode == FALLOC_FL_KEEP_SIZE, even with
the current upstream code that would perform the bdev truncate before
returning -EOPNOTSUPP. That seems like a bit of an unfortunate side
effect to me.

WRT to unshare, if the PROVISION request is always going to imply an
unshare (which seems reasonable to me), there's probably no reason to
-EOPNOTSUPP if a caller explicitly passes UNSHARE_RANGE.

Brian

>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index d766be7152e1..9820b3b039f2 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
>  	    bio->bi_iter.bi_size &&
>  	    bio_op(bio) != REQ_OP_DISCARD &&
>  	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
> -	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
> +	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> +	    bio_op(bio) != REQ_OP_PROVISION)
>  		return true;
>  
>  	return false;
> @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
>  {
>  	return bio_op(bio) == REQ_OP_DISCARD ||
>  	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
> -	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
> +	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> +	       bio_op(bio) == REQ_OP_PROVISION;
>  }
>  
>  static inline void *bio_data(struct bio *bio)
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 99be590f952f..27bdf88f541c 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -385,7 +385,10 @@ enum req_op {
>  	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
>  	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
>  
> -	REQ_OP_LAST		= (__force blk_opf_t)36,
> +	/* request device to provision block */
> +	REQ_OP_PROVISION        = (__force blk_opf_t)37,
> +
> +	REQ_OP_LAST		= (__force blk_opf_t)38,
>  };
>  
>  enum req_flag_bits {
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 941304f17492..239e2f418b6e 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -303,6 +303,7 @@ struct queue_limits {
>  	unsigned int		discard_granularity;
>  	unsigned int		discard_alignment;
>  	unsigned int		zone_write_granularity;
> +	unsigned int		max_provision_sectors;
>  
>  	unsigned short		max_segments;
>  	unsigned short		max_integrity_segments;
> @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
>  		unsigned int max_discard_sectors);
>  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  		unsigned int max_write_same_sectors);
> +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors);
>  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
>  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
>  		unsigned int max_zone_append_sectors);
> @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
>  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  		sector_t nr_sects, gfp_t gfp);
>  
> +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp_mask);
> +
>  #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
>  #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
>  
> @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
>  	return q->limits.max_discard_segments;
>  }
>  
> +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> +{
> +	return q->limits.max_provision_sectors;
> +}
> +
>  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
>  {
>  	return q->limits.max_segment_size;
> @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
>  	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
>  }
>  
> +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> +{
> +	return bdev_get_queue(bdev)->limits.max_provision_sectors;
> +}
> +
>  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
>  {
>  	return blk_queue_zoned_model(bdev_get_queue(bdev));
> -- 
> 2.40.0.634.g4ca3ef3211-goog
> 

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Re: [PATCH v3 1/3] block: Introduce provisioning primitives

[Brian Foster]

On Thu, Apr 13, 2023 at 05:02:17PM -0700, Sarthak Kukreti wrote:
> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/blk-core.c          |  5 ++++
>  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
>  block/blk-merge.c         | 18 +++++++++++++
>  block/blk-settings.c      | 19 ++++++++++++++
>  block/blk-sysfs.c         |  8 ++++++
>  block/bounce.c            |  1 +
>  block/fops.c              | 14 ++++++++---
>  include/linux/bio.h       |  6 +++--
>  include/linux/blk_types.h |  5 +++-
>  include/linux/blkdev.h    | 16 ++++++++++++
>  10 files changed, 138 insertions(+), 7 deletions(-)
> 
...
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..f82da2fb8af0 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -625,7 +625,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	int error;
>  
>  	/* Fail if we don't recognize the flags. */
> -	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> +	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
>  		return -EOPNOTSUPP;
>  
>  	/* Don't go off the end of the device. */
> @@ -649,11 +649,17 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	filemap_invalidate_lock(inode->i_mapping);
>  
>  	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> +	if (mode != 0) {
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +	}
>  
>  	switch (mode) {
> +	case 0:
> +		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> +					       len >> SECTOR_SHIFT, GFP_KERNEL);
> +		break;

I would think we'd want to support any combination of
FALLOC_FL_KEEP_SIZE and FALLOC_FL_UNSHARE_RANGE..? All of the other
commands support the former modifier, for one. It also looks like if
somebody attempts to invoke with mode == FALLOC_FL_KEEP_SIZE, even with
the current upstream code that would perform the bdev truncate before
returning -EOPNOTSUPP. That seems like a bit of an unfortunate side
effect to me.

WRT to unshare, if the PROVISION request is always going to imply an
unshare (which seems reasonable to me), there's probably no reason to
-EOPNOTSUPP if a caller explicitly passes UNSHARE_RANGE.

Brian

>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index d766be7152e1..9820b3b039f2 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
>  	    bio->bi_iter.bi_size &&
>  	    bio_op(bio) != REQ_OP_DISCARD &&
>  	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
> -	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
> +	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> +	    bio_op(bio) != REQ_OP_PROVISION)
>  		return true;
>  
>  	return false;
> @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
>  {
>  	return bio_op(bio) == REQ_OP_DISCARD ||
>  	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
> -	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
> +	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> +	       bio_op(bio) == REQ_OP_PROVISION;
>  }
>  
>  static inline void *bio_data(struct bio *bio)
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 99be590f952f..27bdf88f541c 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -385,7 +385,10 @@ enum req_op {
>  	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
>  	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
>  
> -	REQ_OP_LAST		= (__force blk_opf_t)36,
> +	/* request device to provision block */
> +	REQ_OP_PROVISION        = (__force blk_opf_t)37,
> +
> +	REQ_OP_LAST		= (__force blk_opf_t)38,
>  };
>  
>  enum req_flag_bits {
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 941304f17492..239e2f418b6e 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -303,6 +303,7 @@ struct queue_limits {
>  	unsigned int		discard_granularity;
>  	unsigned int		discard_alignment;
>  	unsigned int		zone_write_granularity;
> +	unsigned int		max_provision_sectors;
>  
>  	unsigned short		max_segments;
>  	unsigned short		max_integrity_segments;
> @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
>  		unsigned int max_discard_sectors);
>  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  		unsigned int max_write_same_sectors);
> +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors);
>  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
>  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
>  		unsigned int max_zone_append_sectors);
> @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
>  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  		sector_t nr_sects, gfp_t gfp);
>  
> +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp_mask);
> +
>  #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
>  #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
>  
> @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
>  	return q->limits.max_discard_segments;
>  }
>  
> +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> +{
> +	return q->limits.max_provision_sectors;
> +}
> +
>  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
>  {
>  	return q->limits.max_segment_size;
> @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
>  	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
>  }
>  
> +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> +{
> +	return bdev_get_queue(bdev)->limits.max_provision_sectors;
> +}
> +
>  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
>  {
>  	return blk_queue_zoned_model(bdev_get_queue(bdev));
> -- 
> 2.40.0.634.g4ca3ef3211-goog
> 

Re: [dm-devel] [PATCH v3 1/3] block: Introduce provisioning primitives

[Sarthak Kukreti]

On Mon, Apr 17, 2023 at 10:33 AM Brian Foster <bfoster@redhat.com> wrote:
>
> On Thu, Apr 13, 2023 at 05:02:17PM -0700, Sarthak Kukreti wrote:
> > Introduce block request REQ_OP_PROVISION. The intent of this request
> > is to request underlying storage to preallocate disk space for the given
> > block range. Block devices that support this capability will export
> > a provision limit within their request queues.
> >
> > This patch also adds the capability to call fallocate() in mode 0
> > on block devices, which will send REQ_OP_PROVISION to the block
> > device for the specified range,
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/blk-core.c          |  5 ++++
> >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> >  block/blk-merge.c         | 18 +++++++++++++
> >  block/blk-settings.c      | 19 ++++++++++++++
> >  block/blk-sysfs.c         |  8 ++++++
> >  block/bounce.c            |  1 +
> >  block/fops.c              | 14 ++++++++---
> >  include/linux/bio.h       |  6 +++--
> >  include/linux/blk_types.h |  5 +++-
> >  include/linux/blkdev.h    | 16 ++++++++++++
> >  10 files changed, 138 insertions(+), 7 deletions(-)
> >
> ...
> > diff --git a/block/fops.c b/block/fops.c
> > index d2e6be4e3d1c..f82da2fb8af0 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -625,7 +625,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >       int error;
> >
> >       /* Fail if we don't recognize the flags. */
> > -     if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> > +     if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> >               return -EOPNOTSUPP;
> >
> >       /* Don't go off the end of the device. */
> > @@ -649,11 +649,17 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >       filemap_invalidate_lock(inode->i_mapping);
> >
> >       /* Invalidate the page cache, including dirty pages. */
> > -     error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > -     if (error)
> > -             goto fail;
> > +     if (mode != 0) {
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > +             if (error)
> > +                     goto fail;
> > +     }
> >
> >       switch (mode) {
> > +     case 0:
> > +             error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> > +                                            len >> SECTOR_SHIFT, GFP_KERNEL);
> > +             break;
>
> I would think we'd want to support any combination of
> FALLOC_FL_KEEP_SIZE and FALLOC_FL_UNSHARE_RANGE..? All of the other
> commands support the former modifier, for one. It also looks like if
> somebody attempts to invoke with mode == FALLOC_FL_KEEP_SIZE, even with
> the current upstream code that would perform the bdev truncate before
> returning -EOPNOTSUPP. That seems like a bit of an unfortunate side
> effect to me.
>
Added a separate flag set to decide whether we should truncate or not.

> WRT to unshare, if the PROVISION request is always going to imply an
> unshare (which seems reasonable to me), there's probably no reason to
> -EOPNOTSUPP if a caller explicitly passes UNSHARE_RANGE.
>
Added handling in v4.

Thanks!

Sarthak

> Brian
>
> >       case FALLOC_FL_ZERO_RANGE:
> >       case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> >               error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> > diff --git a/include/linux/bio.h b/include/linux/bio.h
> > index d766be7152e1..9820b3b039f2 100644
> > --- a/include/linux/bio.h
> > +++ b/include/linux/bio.h
> > @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
> >           bio->bi_iter.bi_size &&
> >           bio_op(bio) != REQ_OP_DISCARD &&
> >           bio_op(bio) != REQ_OP_SECURE_ERASE &&
> > -         bio_op(bio) != REQ_OP_WRITE_ZEROES)
> > +         bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> > +         bio_op(bio) != REQ_OP_PROVISION)
> >               return true;
> >
> >       return false;
> > @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
> >  {
> >       return bio_op(bio) == REQ_OP_DISCARD ||
> >              bio_op(bio) == REQ_OP_SECURE_ERASE ||
> > -            bio_op(bio) == REQ_OP_WRITE_ZEROES;
> > +            bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> > +            bio_op(bio) == REQ_OP_PROVISION;
> >  }
> >
> >  static inline void *bio_data(struct bio *bio)
> > diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> > index 99be590f952f..27bdf88f541c 100644
> > --- a/include/linux/blk_types.h
> > +++ b/include/linux/blk_types.h
> > @@ -385,7 +385,10 @@ enum req_op {
> >       REQ_OP_DRV_IN           = (__force blk_opf_t)34,
> >       REQ_OP_DRV_OUT          = (__force blk_opf_t)35,
> >
> > -     REQ_OP_LAST             = (__force blk_opf_t)36,
> > +     /* request device to provision block */
> > +     REQ_OP_PROVISION        = (__force blk_opf_t)37,
> > +
> > +     REQ_OP_LAST             = (__force blk_opf_t)38,
> >  };
> >
> >  enum req_flag_bits {
> > diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> > index 941304f17492..239e2f418b6e 100644
> > --- a/include/linux/blkdev.h
> > +++ b/include/linux/blkdev.h
> > @@ -303,6 +303,7 @@ struct queue_limits {
> >       unsigned int            discard_granularity;
> >       unsigned int            discard_alignment;
> >       unsigned int            zone_write_granularity;
> > +     unsigned int            max_provision_sectors;
> >
> >       unsigned short          max_segments;
> >       unsigned short          max_integrity_segments;
> > @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
> >               unsigned int max_discard_sectors);
> >  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
> >               unsigned int max_write_same_sectors);
> > +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> > +             unsigned int max_provision_sectors);
> >  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
> >  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
> >               unsigned int max_zone_append_sectors);
> > @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
> >  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
> >               sector_t nr_sects, gfp_t gfp);
> >
> > +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> > +             sector_t nr_sects, gfp_t gfp_mask);
> > +
> >  #define BLKDEV_ZERO_NOUNMAP  (1 << 0)  /* do not free blocks */
> >  #define BLKDEV_ZERO_NOFALLBACK       (1 << 1)  /* don't write explicit zeroes */
> >
> > @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
> >       return q->limits.max_discard_segments;
> >  }
> >
> > +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> > +{
> > +     return q->limits.max_provision_sectors;
> > +}
> > +
> >  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
> >  {
> >       return q->limits.max_segment_size;
> > @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
> >       return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
> >  }
> >
> > +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> > +{
> > +     return bdev_get_queue(bdev)->limits.max_provision_sectors;
> > +}
> > +
> >  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
> >  {
> >       return blk_queue_zoned_model(bdev_get_queue(bdev));
> > --
> > 2.40.0.634.g4ca3ef3211-goog
> >
>

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Re: [PATCH v3 1/3] block: Introduce provisioning primitives

[Sarthak Kukreti]

On Mon, Apr 17, 2023 at 10:33 AM Brian Foster <bfoster@redhat.com> wrote:
>
> On Thu, Apr 13, 2023 at 05:02:17PM -0700, Sarthak Kukreti wrote:
> > Introduce block request REQ_OP_PROVISION. The intent of this request
> > is to request underlying storage to preallocate disk space for the given
> > block range. Block devices that support this capability will export
> > a provision limit within their request queues.
> >
> > This patch also adds the capability to call fallocate() in mode 0
> > on block devices, which will send REQ_OP_PROVISION to the block
> > device for the specified range,
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/blk-core.c          |  5 ++++
> >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> >  block/blk-merge.c         | 18 +++++++++++++
> >  block/blk-settings.c      | 19 ++++++++++++++
> >  block/blk-sysfs.c         |  8 ++++++
> >  block/bounce.c            |  1 +
> >  block/fops.c              | 14 ++++++++---
> >  include/linux/bio.h       |  6 +++--
> >  include/linux/blk_types.h |  5 +++-
> >  include/linux/blkdev.h    | 16 ++++++++++++
> >  10 files changed, 138 insertions(+), 7 deletions(-)
> >
> ...
> > diff --git a/block/fops.c b/block/fops.c
> > index d2e6be4e3d1c..f82da2fb8af0 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -625,7 +625,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >       int error;
> >
> >       /* Fail if we don't recognize the flags. */
> > -     if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> > +     if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> >               return -EOPNOTSUPP;
> >
> >       /* Don't go off the end of the device. */
> > @@ -649,11 +649,17 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >       filemap_invalidate_lock(inode->i_mapping);
> >
> >       /* Invalidate the page cache, including dirty pages. */
> > -     error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > -     if (error)
> > -             goto fail;
> > +     if (mode != 0) {
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > +             if (error)
> > +                     goto fail;
> > +     }
> >
> >       switch (mode) {
> > +     case 0:
> > +             error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> > +                                            len >> SECTOR_SHIFT, GFP_KERNEL);
> > +             break;
>
> I would think we'd want to support any combination of
> FALLOC_FL_KEEP_SIZE and FALLOC_FL_UNSHARE_RANGE..? All of the other
> commands support the former modifier, for one. It also looks like if
> somebody attempts to invoke with mode == FALLOC_FL_KEEP_SIZE, even with
> the current upstream code that would perform the bdev truncate before
> returning -EOPNOTSUPP. That seems like a bit of an unfortunate side
> effect to me.
>
Added a separate flag set to decide whether we should truncate or not.

> WRT to unshare, if the PROVISION request is always going to imply an
> unshare (which seems reasonable to me), there's probably no reason to
> -EOPNOTSUPP if a caller explicitly passes UNSHARE_RANGE.
>
Added handling in v4.

Thanks!

Sarthak

> Brian
>
> >       case FALLOC_FL_ZERO_RANGE:
> >       case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> >               error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> > diff --git a/include/linux/bio.h b/include/linux/bio.h
> > index d766be7152e1..9820b3b039f2 100644
> > --- a/include/linux/bio.h
> > +++ b/include/linux/bio.h
> > @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
> >           bio->bi_iter.bi_size &&
> >           bio_op(bio) != REQ_OP_DISCARD &&
> >           bio_op(bio) != REQ_OP_SECURE_ERASE &&
> > -         bio_op(bio) != REQ_OP_WRITE_ZEROES)
> > +         bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> > +         bio_op(bio) != REQ_OP_PROVISION)
> >               return true;
> >
> >       return false;
> > @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
> >  {
> >       return bio_op(bio) == REQ_OP_DISCARD ||
> >              bio_op(bio) == REQ_OP_SECURE_ERASE ||
> > -            bio_op(bio) == REQ_OP_WRITE_ZEROES;
> > +            bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> > +            bio_op(bio) == REQ_OP_PROVISION;
> >  }
> >
> >  static inline void *bio_data(struct bio *bio)
> > diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> > index 99be590f952f..27bdf88f541c 100644
> > --- a/include/linux/blk_types.h
> > +++ b/include/linux/blk_types.h
> > @@ -385,7 +385,10 @@ enum req_op {
> >       REQ_OP_DRV_IN           = (__force blk_opf_t)34,
> >       REQ_OP_DRV_OUT          = (__force blk_opf_t)35,
> >
> > -     REQ_OP_LAST             = (__force blk_opf_t)36,
> > +     /* request device to provision block */
> > +     REQ_OP_PROVISION        = (__force blk_opf_t)37,
> > +
> > +     REQ_OP_LAST             = (__force blk_opf_t)38,
> >  };
> >
> >  enum req_flag_bits {
> > diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> > index 941304f17492..239e2f418b6e 100644
> > --- a/include/linux/blkdev.h
> > +++ b/include/linux/blkdev.h
> > @@ -303,6 +303,7 @@ struct queue_limits {
> >       unsigned int            discard_granularity;
> >       unsigned int            discard_alignment;
> >       unsigned int            zone_write_granularity;
> > +     unsigned int            max_provision_sectors;
> >
> >       unsigned short          max_segments;
> >       unsigned short          max_integrity_segments;
> > @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
> >               unsigned int max_discard_sectors);
> >  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
> >               unsigned int max_write_same_sectors);
> > +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> > +             unsigned int max_provision_sectors);
> >  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
> >  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
> >               unsigned int max_zone_append_sectors);
> > @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
> >  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
> >               sector_t nr_sects, gfp_t gfp);
> >
> > +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> > +             sector_t nr_sects, gfp_t gfp_mask);
> > +
> >  #define BLKDEV_ZERO_NOUNMAP  (1 << 0)  /* do not free blocks */
> >  #define BLKDEV_ZERO_NOFALLBACK       (1 << 1)  /* don't write explicit zeroes */
> >
> > @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
> >       return q->limits.max_discard_segments;
> >  }
> >
> > +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> > +{
> > +     return q->limits.max_provision_sectors;
> > +}
> > +
> >  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
> >  {
> >       return q->limits.max_segment_size;
> > @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
> >       return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
> >  }
> >
> > +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> > +{
> > +     return bdev_get_queue(bdev)->limits.max_provision_sectors;
> > +}
> > +
> >  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
> >  {
> >       return blk_queue_zoned_model(bdev_get_queue(bdev));
> > --
> > 2.40.0.634.g4ca3ef3211-goog
> >
>

[dm-devel] [PATCH v3 2/3] dm: Add support for block provisioning

[Sarthak Kukreti]

Add support to dm devices for REQ_OP_PROVISION. The default mode
is to passthrough the request to the underlying device, if it
supports it. dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |   4 +-
 drivers/md/dm-linear.c        |   1 +
 drivers/md/dm-snap.c          |   7 +++
 drivers/md/dm-table.c         |  25 ++++++++
 drivers/md/dm-thin.c          | 110 +++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |   4 ++
 include/linux/device-mapper.h |  11 ++++
 7 files changed, 153 insertions(+), 9 deletions(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 3ba53dc3cc3f..5c655bfd4686 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3087,6 +3087,8 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar
 	if (ret)
 		return ret;
 
+	ti->num_provision_bios = 1;
+
 	while (opt_params--) {
 		opt_string = dm_shift_arg(&as);
 		if (!opt_string) {
@@ -3390,7 +3392,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 3e622dcc9dbd..7843e548e850 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index f766c21408f1..f6b224a12000 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2004,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2419,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 2055a758541d..5985343384a7 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1850,6 +1850,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return !bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1983,6 +2003,11 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (dm_table_supports_provision(t))
+		blk_queue_max_provision_sectors(q, UINT_MAX >> 9);
+	else
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 13d4677baafd..b08b7ae617be 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -909,7 +909,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1013,6 +1014,15 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
 		goto out;
 	}
 
+	/*
+	 * For provision requests, once the prepared block has been inserted
+	 * into the mapping btree, return.
+	 */
+	if (bio && bio_op(bio) == REQ_OP_PROVISION) {
+		bio_endio(bio);
+		return;
+	}
+
 	/*
 	 * Release any bios held while the block was being provisioned.
 	 * If we are processing a write bio that completely covers the block,
@@ -1241,7 +1251,7 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
+	return (bio_data_dir(bio) == WRITE) && bio_op(bio) != REQ_OP_PROVISION &&
 		io_overlaps_block(pool, bio);
 }
 
@@ -1334,10 +1344,11 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
 	/*
 	 * IO to pool_dev remaps to the pool target's data_dev.
 	 *
-	 * If the whole block of data is being overwritten, we can issue the
-	 * bio immediately. Otherwise we use kcopyd to clone the data first.
+	 * If the whole block of data is being overwritten and if this is not a
+	 * provision request, we can issue the bio immediately.
+	 * Otherwise we use kcopyd to clone the data first.
 	 */
-	if (io_overwrites_block(pool, bio))
+	if (io_overwrites_block(pool, bio) && bio_op(bio) != REQ_OP_PROVISION)
 		remap_and_issue_overwrite(tc, bio, data_dest, m);
 	else {
 		struct dm_io_region from, to;
@@ -1356,7 +1367,8 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
 		/*
 		 * Do we need to zero a tail region?
 		 */
-		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) {
+		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks &&
+		    bio_op(bio) != REQ_OP_PROVISION) {
 			atomic_inc(&m->prepare_actions);
 			ll_zero(tc, m,
 				data_dest * pool->sectors_per_block + len,
@@ -1390,6 +1402,10 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
 	m->data_block = data_block;
 	m->cell = cell;
 
+	/* Provision requests are chained on the original bio. */
+	if (bio && bio_op(bio) == REQ_OP_PROVISION)
+		m->bio = bio;
+
 	/*
 	 * If the whole block of data is being overwritten or we are not
 	 * zeroing pre-existing data, we can issue the bio immediately.
@@ -1865,7 +1881,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
 
 	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
 		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
-		cell_defer_no_holder(tc, virt_cell);
+		if (bio_op(bio) != REQ_OP_PROVISION)
+			cell_defer_no_holder(tc, virt_cell);
 	} else {
 		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
 
@@ -1982,6 +1999,73 @@ static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 	}
 }
 
+static void process_provision_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	struct bio *bio = cell->holder;
+	dm_block_t begin, end;
+	struct dm_thin_lookup_result lookup_result;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	get_bio_block_range(tc, bio, &begin, &end);
+
+	while (begin != end) {
+		r = ensure_next_mapping(pool);
+		if (r)
+			/* we did our best */
+			return;
+
+		r = dm_thin_find_block(tc->td, begin, 1, &lookup_result);
+		switch (r) {
+		case 0:
+			if (lookup_result.shared)
+				process_shared_bio(tc, bio, begin,
+						   &lookup_result, cell);
+			begin++;
+			break;
+		case -ENODATA:
+			bio_inc_remaining(bio);
+			provision_block(tc, bio, begin, cell);
+			begin++;
+			break;
+		default:
+			DMERR_LIMIT(
+				"%s: dm_thin_find_block() failed: error = %d",
+				__func__, r);
+			cell_defer_no_holder(tc, cell);
+			bio_io_error(bio);
+			begin++;
+			break;
+		}
+	}
+	bio_endio(bio);
+	cell_defer_no_holder(tc, cell);
+}
+
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	dm_block_t begin, end;
+	struct dm_cell_key virt_key;
+	struct dm_bio_prison_cell *virt_cell;
+
+	get_bio_block_range(tc, bio, &begin, &end);
+	if (begin == end) {
+		bio_endio(bio);
+		return;
+	}
+
+	build_key(tc->td, VIRTUAL, begin, end, &virt_key);
+	if (bio_detain(tc->pool, &virt_key, bio, &virt_cell))
+		return;
+
+	process_provision_cell(tc, virt_cell);
+}
+
 static void process_bio(struct thin_c *tc, struct bio *bio)
 {
 	struct pool *pool = tc->pool;
@@ -2202,6 +2286,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			process_provision_bio(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2723,7 +2809,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3370,6 +3457,8 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4068,6 +4157,7 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
 	}
 
+
 	/*
 	 * pt->adjusted_pf is a staging area for the actual features to use.
 	 * They get transferred to the live pool in bind_control_target()
@@ -4261,6 +4351,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->num_discard_bios = 1;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
@@ -4475,6 +4568,7 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 	limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
+	limits->max_provision_sectors = 2048 * 1024 * 16; /* 16G */
 }
 
 static struct target_type thin_target = {
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index dfde0088147a..d8f1803062b7 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1593,6 +1593,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1617,6 +1618,9 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 	case REQ_OP_WRITE_ZEROES:
 		num_bios = ti->num_write_zeroes_bios;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 7975483816e4..e9f687521ae6 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v3 2/3] dm: Add support for block provisioning

[Sarthak Kukreti]

Add support to dm devices for REQ_OP_PROVISION. The default mode
is to passthrough the request to the underlying device, if it
supports it. dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |   4 +-
 drivers/md/dm-linear.c        |   1 +
 drivers/md/dm-snap.c          |   7 +++
 drivers/md/dm-table.c         |  25 ++++++++
 drivers/md/dm-thin.c          | 110 +++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |   4 ++
 include/linux/device-mapper.h |  11 ++++
 7 files changed, 153 insertions(+), 9 deletions(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 3ba53dc3cc3f..5c655bfd4686 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3087,6 +3087,8 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar
 	if (ret)
 		return ret;
 
+	ti->num_provision_bios = 1;
+
 	while (opt_params--) {
 		opt_string = dm_shift_arg(&as);
 		if (!opt_string) {
@@ -3390,7 +3392,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 3e622dcc9dbd..7843e548e850 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index f766c21408f1..f6b224a12000 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2004,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2419,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 2055a758541d..5985343384a7 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1850,6 +1850,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return !bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1983,6 +2003,11 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (dm_table_supports_provision(t))
+		blk_queue_max_provision_sectors(q, UINT_MAX >> 9);
+	else
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 13d4677baafd..b08b7ae617be 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -909,7 +909,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1013,6 +1014,15 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
 		goto out;
 	}
 
+	/*
+	 * For provision requests, once the prepared block has been inserted
+	 * into the mapping btree, return.
+	 */
+	if (bio && bio_op(bio) == REQ_OP_PROVISION) {
+		bio_endio(bio);
+		return;
+	}
+
 	/*
 	 * Release any bios held while the block was being provisioned.
 	 * If we are processing a write bio that completely covers the block,
@@ -1241,7 +1251,7 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
+	return (bio_data_dir(bio) == WRITE) && bio_op(bio) != REQ_OP_PROVISION &&
 		io_overlaps_block(pool, bio);
 }
 
@@ -1334,10 +1344,11 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
 	/*
 	 * IO to pool_dev remaps to the pool target's data_dev.
 	 *
-	 * If the whole block of data is being overwritten, we can issue the
-	 * bio immediately. Otherwise we use kcopyd to clone the data first.
+	 * If the whole block of data is being overwritten and if this is not a
+	 * provision request, we can issue the bio immediately.
+	 * Otherwise we use kcopyd to clone the data first.
 	 */
-	if (io_overwrites_block(pool, bio))
+	if (io_overwrites_block(pool, bio) && bio_op(bio) != REQ_OP_PROVISION)
 		remap_and_issue_overwrite(tc, bio, data_dest, m);
 	else {
 		struct dm_io_region from, to;
@@ -1356,7 +1367,8 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
 		/*
 		 * Do we need to zero a tail region?
 		 */
-		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) {
+		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks &&
+		    bio_op(bio) != REQ_OP_PROVISION) {
 			atomic_inc(&m->prepare_actions);
 			ll_zero(tc, m,
 				data_dest * pool->sectors_per_block + len,
@@ -1390,6 +1402,10 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
 	m->data_block = data_block;
 	m->cell = cell;
 
+	/* Provision requests are chained on the original bio. */
+	if (bio && bio_op(bio) == REQ_OP_PROVISION)
+		m->bio = bio;
+
 	/*
 	 * If the whole block of data is being overwritten or we are not
 	 * zeroing pre-existing data, we can issue the bio immediately.
@@ -1865,7 +1881,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
 
 	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
 		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
-		cell_defer_no_holder(tc, virt_cell);
+		if (bio_op(bio) != REQ_OP_PROVISION)
+			cell_defer_no_holder(tc, virt_cell);
 	} else {
 		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
 
@@ -1982,6 +1999,73 @@ static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 	}
 }
 
+static void process_provision_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	struct bio *bio = cell->holder;
+	dm_block_t begin, end;
+	struct dm_thin_lookup_result lookup_result;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	get_bio_block_range(tc, bio, &begin, &end);
+
+	while (begin != end) {
+		r = ensure_next_mapping(pool);
+		if (r)
+			/* we did our best */
+			return;
+
+		r = dm_thin_find_block(tc->td, begin, 1, &lookup_result);
+		switch (r) {
+		case 0:
+			if (lookup_result.shared)
+				process_shared_bio(tc, bio, begin,
+						   &lookup_result, cell);
+			begin++;
+			break;
+		case -ENODATA:
+			bio_inc_remaining(bio);
+			provision_block(tc, bio, begin, cell);
+			begin++;
+			break;
+		default:
+			DMERR_LIMIT(
+				"%s: dm_thin_find_block() failed: error = %d",
+				__func__, r);
+			cell_defer_no_holder(tc, cell);
+			bio_io_error(bio);
+			begin++;
+			break;
+		}
+	}
+	bio_endio(bio);
+	cell_defer_no_holder(tc, cell);
+}
+
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	dm_block_t begin, end;
+	struct dm_cell_key virt_key;
+	struct dm_bio_prison_cell *virt_cell;
+
+	get_bio_block_range(tc, bio, &begin, &end);
+	if (begin == end) {
+		bio_endio(bio);
+		return;
+	}
+
+	build_key(tc->td, VIRTUAL, begin, end, &virt_key);
+	if (bio_detain(tc->pool, &virt_key, bio, &virt_cell))
+		return;
+
+	process_provision_cell(tc, virt_cell);
+}
+
 static void process_bio(struct thin_c *tc, struct bio *bio)
 {
 	struct pool *pool = tc->pool;
@@ -2202,6 +2286,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			process_provision_bio(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2723,7 +2809,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3370,6 +3457,8 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4068,6 +4157,7 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
 	}
 
+
 	/*
 	 * pt->adjusted_pf is a staging area for the actual features to use.
 	 * They get transferred to the live pool in bind_control_target()
@@ -4261,6 +4351,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->num_discard_bios = 1;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
@@ -4475,6 +4568,7 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 	limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
+	limits->max_provision_sectors = 2048 * 1024 * 16; /* 16G */
 }
 
 static struct target_type thin_target = {
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index dfde0088147a..d8f1803062b7 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1593,6 +1593,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1617,6 +1618,9 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 	case REQ_OP_WRITE_ZEROES:
 		num_bios = ti->num_write_zeroes_bios;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 7975483816e4..e9f687521ae6 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.0.634.g4ca3ef3211-goog

Re: [dm-devel] [PATCH v3 2/3] dm: Add support for block provisioning

[Joe Thornber]

[-- Attachment #1.1: Type: text/plain, Size: 1533 bytes --]

On Fri, Apr 14, 2023 at 7:52 AM Sarthak Kukreti <sarthakkukreti@chromium.org>
wrote:

> Add support to dm devices for REQ_OP_PROVISION. The default mode
> is to passthrough the request to the underlying device, if it
> supports it. dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
>
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block.
>

I see two issue with this patch:

i) You use get_bio_block_range() to see which blocks the provision bio
covers.  But this function only returns
complete blocks that are covered (it was designed for discard).  Unlike
discard, provision is not a hint so those
partial blocks will need to be provisioned too.

ii) You are setting off multiple dm_thin_new_mapping operations in flight
at once.  Each of these receives
the same virt_cell and frees it  when it completes.  So I think we have
multiple frees occuring?  In addition you also
release the cell yourself in process_provision_cell().  Fixing this is not
trivial, you'll need to reference count the cells,
and aggregate the mapping operation results.

I think it would be far easier to restrict the size of the provision bio to
be no bigger than one thinp block (as we do for normal io).  This way dm
core can split the bios, chain the child bios rather than having to
reference count mapping ops, and aggregate the results.

- Joe

[-- Attachment #1.2: Type: text/html, Size: 2073 bytes --]

[-- Attachment #2: Type: text/plain, Size: 98 bytes --]

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Re: [dm-devel] [PATCH v3 2/3] dm: Add support for block provisioning

[Mike Snitzer]

On Fri, Apr 14 2023 at  9:32P -0400,
Joe Thornber <thornber@redhat.com> wrote:

> On Fri, Apr 14, 2023 at 7:52 AM Sarthak Kukreti <sarthakkukreti@chromium.org>
> wrote:
> 
> > Add support to dm devices for REQ_OP_PROVISION. The default mode
> > is to passthrough the request to the underlying device, if it
> > supports it. dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block.
> >
> 
> I see two issue with this patch:
> 
> i) You use get_bio_block_range() to see which blocks the provision bio
> covers.  But this function only returns
> complete blocks that are covered (it was designed for discard).  Unlike
> discard, provision is not a hint so those
> partial blocks will need to be provisioned too.
> 
> ii) You are setting off multiple dm_thin_new_mapping operations in flight
> at once.  Each of these receives
> the same virt_cell and frees it  when it completes.  So I think we have
> multiple frees occuring?  In addition you also
> release the cell yourself in process_provision_cell().  Fixing this is not
> trivial, you'll need to reference count the cells,
> and aggregate the mapping operation results.
> 
> I think it would be far easier to restrict the size of the provision bio to
> be no bigger than one thinp block (as we do for normal io).  This way dm
> core can split the bios, chain the child bios rather than having to
> reference count mapping ops, and aggregate the results.

I happened to be looking at implementing WRITE_ZEROES support for DM
thinp yesterday and reached the same conclussion relative to it (both
of Joe's points above, for me "ii)" was: the dm-bio-prison-v1 range
locking we do for discards needs work for other types of IO).

We can work to make REQ_OP_PROVISION spanning multiple thinp blocks
possible as follow-on optimization; but in the near-term DM thinp
needs REQ_OP_PROVISION to be split on a thinp block boundary.

This splitting can be assisted by block core in terms of a new
'provision_granularity' (which for thinp, it'd be set to the thinp
blocksize).  But I don't know that we need to go that far (I'm
thinking its fine to have DM do the splitting it needs and only
elevate related code to block core if/when needed in the future).

DM core can take on conditionally imposing its max_io_len() to handle
splitting REQ_OP_PROVISION as needed on a per-target basis. This DM
core commit I've staged for 6.4 makes this quite a simple change:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-6.4&id=13f6facf3faeed34ca381aef4c9b153c7aed3972

So please rebase on linux-dm.git's dm-6.4 branch, and for
REQ_OP_PROVISION dm.c:__process_abnormal_io() you'd add this:

	case REQ_OP_PROVISION:
                num_bios = ti->num_provision_bios;
                if (ti->max_provision_granularity)
                        max_granularity = limits->max_provision_sectors;
                break;

I'll reply again later today (to patch 2's actual code changes),
because I caught at least one other thing worth mentioning.

Thanks,
Mike

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Re: [PATCH v3 2/3] dm: Add support for block provisioning

[Mike Snitzer]

On Fri, Apr 14 2023 at  9:32P -0400,
Joe Thornber <thornber@redhat.com> wrote:

> On Fri, Apr 14, 2023 at 7:52 AM Sarthak Kukreti <sarthakkukreti@chromium.org>
> wrote:
> 
> > Add support to dm devices for REQ_OP_PROVISION. The default mode
> > is to passthrough the request to the underlying device, if it
> > supports it. dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block.
> >
> 
> I see two issue with this patch:
> 
> i) You use get_bio_block_range() to see which blocks the provision bio
> covers.  But this function only returns
> complete blocks that are covered (it was designed for discard).  Unlike
> discard, provision is not a hint so those
> partial blocks will need to be provisioned too.
> 
> ii) You are setting off multiple dm_thin_new_mapping operations in flight
> at once.  Each of these receives
> the same virt_cell and frees it  when it completes.  So I think we have
> multiple frees occuring?  In addition you also
> release the cell yourself in process_provision_cell().  Fixing this is not
> trivial, you'll need to reference count the cells,
> and aggregate the mapping operation results.
> 
> I think it would be far easier to restrict the size of the provision bio to
> be no bigger than one thinp block (as we do for normal io).  This way dm
> core can split the bios, chain the child bios rather than having to
> reference count mapping ops, and aggregate the results.

I happened to be looking at implementing WRITE_ZEROES support for DM
thinp yesterday and reached the same conclussion relative to it (both
of Joe's points above, for me "ii)" was: the dm-bio-prison-v1 range
locking we do for discards needs work for other types of IO).

We can work to make REQ_OP_PROVISION spanning multiple thinp blocks
possible as follow-on optimization; but in the near-term DM thinp
needs REQ_OP_PROVISION to be split on a thinp block boundary.

This splitting can be assisted by block core in terms of a new
'provision_granularity' (which for thinp, it'd be set to the thinp
blocksize).  But I don't know that we need to go that far (I'm
thinking its fine to have DM do the splitting it needs and only
elevate related code to block core if/when needed in the future).

DM core can take on conditionally imposing its max_io_len() to handle
splitting REQ_OP_PROVISION as needed on a per-target basis. This DM
core commit I've staged for 6.4 makes this quite a simple change:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-6.4&id=13f6facf3faeed34ca381aef4c9b153c7aed3972

So please rebase on linux-dm.git's dm-6.4 branch, and for
REQ_OP_PROVISION dm.c:__process_abnormal_io() you'd add this:

	case REQ_OP_PROVISION:
                num_bios = ti->num_provision_bios;
                if (ti->max_provision_granularity)
                        max_granularity = limits->max_provision_sectors;
                break;

I'll reply again later today (to patch 2's actual code changes),
because I caught at least one other thing worth mentioning.

Thanks,
Mike

Re: [dm-devel] [PATCH v3 2/3] dm: Add support for block provisioning

[Mike Snitzer]

On Thu, Apr 13 2023 at  8:02P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Add support to dm devices for REQ_OP_PROVISION. The default mode
> is to passthrough the request to the underlying device, if it
> supports it. dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-crypt.c         |   4 +-
>  drivers/md/dm-linear.c        |   1 +
>  drivers/md/dm-snap.c          |   7 +++

Have you tested REQ_OP_PROVISION with these targets?  Just want to
make sure you have an explicit need (and vested interest) for them
passing through REQ_OP_PROVISION.

> diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
> index 2055a758541d..5985343384a7 100644
> --- a/drivers/md/dm-table.c
> +++ b/drivers/md/dm-table.c
> @@ -1850,6 +1850,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
>  	return true;
>  }
>  
> +static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
> +				    sector_t start, sector_t len, void *data)
> +{
> +	return !bdev_max_provision_sectors(dev->bdev);
> +}
> +
> +static bool dm_table_supports_provision(struct dm_table *t)
> +{
> +	for (unsigned int i = 0; i < t->num_targets; i++) {
> +		struct dm_target *ti = dm_table_get_target(t, i);
> +
> +		if (ti->provision_supported ||
> +		    (ti->type->iterate_devices &&
> +		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
> +			return true;
> +	}
> +
> +	return false;
> +}
> +
>  static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
>  				     sector_t start, sector_t len, void *data)
>  {
> @@ -1983,6 +2003,11 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
>  	if (!dm_table_supports_write_zeroes(t))
>  		q->limits.max_write_zeroes_sectors = 0;
>  
> +	if (dm_table_supports_provision(t))
> +		blk_queue_max_provision_sectors(q, UINT_MAX >> 9);

This doesn't seem correct in that it'll override whatever
max_provision_sectors was set by a target (like thinp).

I think you only need the if (!dm_table_supports_provision)) case:

> +	else
> +		q->limits.max_provision_sectors = 0;
> +
>  	dm_table_verify_integrity(t);
>  
>  	/*
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 13d4677baafd..b08b7ae617be 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c

I think it'll make the most sense to split out the dm-thin.c changes
in a separate patch.

> @@ -909,7 +909,8 @@ static void __inc_remap_and_issue_cell(void *context,
>  	struct bio *bio;
>  
>  	while ((bio = bio_list_pop(&cell->bios))) {
> -		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> +		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +		    bio_op(bio) == REQ_OP_PROVISION)
>  			bio_list_add(&info->defer_bios, bio);
>  		else {
>  			inc_all_io_entry(info->tc->pool, bio);
> @@ -1013,6 +1014,15 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
>  		goto out;
>  	}
>  
> +	/*
> +	 * For provision requests, once the prepared block has been inserted
> +	 * into the mapping btree, return.
> +	 */
> +	if (bio && bio_op(bio) == REQ_OP_PROVISION) {
> +		bio_endio(bio);
> +		return;
> +	}
> +
>  	/*
>  	 * Release any bios held while the block was being provisioned.
>  	 * If we are processing a write bio that completely covers the block,
> @@ -1241,7 +1251,7 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
>  
>  static int io_overwrites_block(struct pool *pool, struct bio *bio)
>  {
> -	return (bio_data_dir(bio) == WRITE) &&
> +	return (bio_data_dir(bio) == WRITE) && bio_op(bio) != REQ_OP_PROVISION &&
>  		io_overlaps_block(pool, bio);
>  }
>  
> @@ -1334,10 +1344,11 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
>  	/*
>  	 * IO to pool_dev remaps to the pool target's data_dev.
>  	 *
> -	 * If the whole block of data is being overwritten, we can issue the
> -	 * bio immediately. Otherwise we use kcopyd to clone the data first.
> +	 * If the whole block of data is being overwritten and if this is not a
> +	 * provision request, we can issue the bio immediately.
> +	 * Otherwise we use kcopyd to clone the data first.
>  	 */
> -	if (io_overwrites_block(pool, bio))
> +	if (io_overwrites_block(pool, bio) && bio_op(bio) != REQ_OP_PROVISION)
>  		remap_and_issue_overwrite(tc, bio, data_dest, m);
>  	else {
>  		struct dm_io_region from, to;
> @@ -1356,7 +1367,8 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
>  		/*
>  		 * Do we need to zero a tail region?
>  		 */
> -		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) {
> +		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks &&
> +		    bio_op(bio) != REQ_OP_PROVISION) {
>  			atomic_inc(&m->prepare_actions);
>  			ll_zero(tc, m,
>  				data_dest * pool->sectors_per_block + len,
> @@ -1390,6 +1402,10 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
>  	m->data_block = data_block;
>  	m->cell = cell;
>  
> +	/* Provision requests are chained on the original bio. */
> +	if (bio && bio_op(bio) == REQ_OP_PROVISION)
> +		m->bio = bio;
> +
>  	/*
>  	 * If the whole block of data is being overwritten or we are not
>  	 * zeroing pre-existing data, we can issue the bio immediately.
> @@ -1865,7 +1881,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
>  
>  	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
>  		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> -		cell_defer_no_holder(tc, virt_cell);
> +		if (bio_op(bio) != REQ_OP_PROVISION)
> +			cell_defer_no_holder(tc, virt_cell);
>  	} else {
>  		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
>  

Not confident in the above changes given the request that we only
handle REQ_OP_PROVISION one thinp block at a time.  So I'll gloss over
them for now.

> @@ -1982,6 +1999,73 @@ static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
>  	}
>  }
>  
> +static void process_provision_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> +{
> +	int r;
> +	struct pool *pool = tc->pool;
> +	struct bio *bio = cell->holder;
> +	dm_block_t begin, end;
> +	struct dm_thin_lookup_result lookup_result;
> +
> +	if (tc->requeue_mode) {
> +		cell_requeue(pool, cell);
> +		return;
> +	}
> +
> +	get_bio_block_range(tc, bio, &begin, &end);
> +
> +	while (begin != end) {
> +		r = ensure_next_mapping(pool);
> +		if (r)
> +			/* we did our best */
> +			return;
> +
> +		r = dm_thin_find_block(tc->td, begin, 1, &lookup_result);
> +		switch (r) {
> +		case 0:
> +			if (lookup_result.shared)
> +				process_shared_bio(tc, bio, begin,
> +						   &lookup_result, cell);
> +			begin++;
> +			break;
> +		case -ENODATA:
> +			bio_inc_remaining(bio);
> +			provision_block(tc, bio, begin, cell);
> +			begin++;
> +			break;
> +		default:
> +			DMERR_LIMIT(
> +				"%s: dm_thin_find_block() failed: error = %d",
> +				__func__, r);
> +			cell_defer_no_holder(tc, cell);
> +			bio_io_error(bio);
> +			begin++;
> +			break;
> +		}
> +	}
> +	bio_endio(bio);
> +	cell_defer_no_holder(tc, cell);
> +}
> +
> +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> +{
> +	dm_block_t begin, end;
> +	struct dm_cell_key virt_key;
> +	struct dm_bio_prison_cell *virt_cell;
> +
> +	get_bio_block_range(tc, bio, &begin, &end);
> +	if (begin == end) {
> +		bio_endio(bio);
> +		return;
> +	}

Like Joe mentioned, this pattern was fine for discards because they
are advisory/optional.  But we need to make sure we don't truncate
REQ_OP_PROVISION -- so we need to round up if we partially bleed into
the blocks to the left or right.

BUT ranged REQ_OP_PROVISION support is for later, this can be dealt
with more simply in that each REQ_OP_PROVISION will be handled a block
at a time initially.  SO you'll want to honor _all_ REQ_OP_PROVISION,
never returning early.

> +
> +	build_key(tc->td, VIRTUAL, begin, end, &virt_key);
> +	if (bio_detain(tc->pool, &virt_key, bio, &virt_cell))
> +		return;
> +
> +	process_provision_cell(tc, virt_cell);
> +}
> +
>  static void process_bio(struct thin_c *tc, struct bio *bio)
>  {
>  	struct pool *pool = tc->pool;
> @@ -2202,6 +2286,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
>  
>  		if (bio_op(bio) == REQ_OP_DISCARD)
>  			pool->process_discard(tc, bio);
> +		else if (bio_op(bio) == REQ_OP_PROVISION)
> +			process_provision_bio(tc, bio);

This should be pool->process_provision() (or ->process_provision_bio
if you like).  Point is, you need to be switching these methods
if/when the pool_mode transitions in set_pool_mode().

>  		else
>  			pool->process_bio(tc, bio);
>  
> @@ -2723,7 +2809,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
>  		return DM_MAPIO_SUBMITTED;
>  	}
>  
> -	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> +	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +	    bio_op(bio) == REQ_OP_PROVISION) {
>  		thin_defer_bio_with_throttle(tc, bio);
>  		return DM_MAPIO_SUBMITTED;
>  	}
> @@ -3370,6 +3457,8 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	pt->adjusted_pf = pt->requested_pf = pf;
>  	ti->num_flush_bios = 1;
>  	ti->limit_swap_bios = true;
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
>  
>  	/*
>  	 * Only need to enable discards if the pool should pass
> @@ -4068,6 +4157,7 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  		blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
>  	}
>  
> +

Please fix this extra whitespace damage.

>  	/*
>  	 * pt->adjusted_pf is a staging area for the actual features to use.
>  	 * They get transferred to the live pool in bind_control_target()
> @@ -4261,6 +4351,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  		ti->num_discard_bios = 1;
>  	}
>  
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
> +
>  	mutex_unlock(&dm_thin_pool_table.mutex);
>  
>  	spin_lock_irq(&tc->pool->lock);
> @@ -4475,6 +4568,7 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  
>  	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
>  	limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
> +	limits->max_provision_sectors = 2048 * 1024 * 16; /* 16G */

Building on my previous reply, with suggested update to
dm.c:__process_abnormal_io(), once you rebase on dm-6.4's dm-thin.c
you'll want to instead:

limits->max_provision_sectors = pool->sectors_per_block << SECTOR_SHIFT;

And you'll want to drop any of the above code that deals with handling
bio-prison range locking and processing of REQ_OP_PROVISION for
multiple thinp blocks at once.

Simple REQ_OP_PROVISION processing one thinp block at a time first and
then we can worry about handling REQ_OP_PROVISION that span blocks
later.

>  static struct target_type thin_target = {
> diff --git a/drivers/md/dm.c b/drivers/md/dm.c
> index dfde0088147a..d8f1803062b7 100644
> --- a/drivers/md/dm.c
> +++ b/drivers/md/dm.c
> @@ -1593,6 +1593,7 @@ static bool is_abnormal_io(struct bio *bio)
>  		case REQ_OP_DISCARD:
>  		case REQ_OP_SECURE_ERASE:
>  		case REQ_OP_WRITE_ZEROES:
> +		case REQ_OP_PROVISION:
>  			return true;
>  		default:
>  			break;
> @@ -1617,6 +1618,9 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
>  	case REQ_OP_WRITE_ZEROES:
>  		num_bios = ti->num_write_zeroes_bios;
>  		break;
> +	case REQ_OP_PROVISION:
> +		num_bios = ti->num_provision_bios;
> +		break;
>  	default:
>  		break;
>  	}

Please be sure to include my suggested __process_abnormal_io change
from my previous reply.

> diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
> index 7975483816e4..e9f687521ae6 100644
> --- a/include/linux/device-mapper.h
> +++ b/include/linux/device-mapper.h
> @@ -334,6 +334,12 @@ struct dm_target {
>  	 */
>  	unsigned int num_write_zeroes_bios;
>  
> +	/*
> +	 * The number of PROVISION bios that will be submitted to the target.
> +	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
> +	 */
> +	unsigned int num_provision_bios;
> +
>  	/*
>  	 * The minimum number of extra bytes allocated in each io for the
>  	 * target to use.
> @@ -358,6 +364,11 @@ struct dm_target {
>  	 */
>  	bool discards_supported:1;
>  
> +	/* Set if this target needs to receive provision requests regardless of
> +	 * whether or not its underlying devices have support.
> +	 */
> +	bool provision_supported:1;
> +
>  	/*
>  	 * Set if we need to limit the number of in-flight bios when swapping.
>  	 */

You'll need to add max_provision_granularity bool too (as implied by
the dm.c:__process_abnormal_io() change suggested in my first reply to
this patch).

I'm happy to wait for you to consume the v3 feedback we've provided so
you can create a v4.  I'm thinking I can base dm-thin.c's WRITE_ZEROES
support ontop of your REQ_OP_PROVISION v4 changes -- they should be
complementary.

Thanks,
Mike

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Re: [PATCH v3 2/3] dm: Add support for block provisioning

[Mike Snitzer]

On Thu, Apr 13 2023 at  8:02P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Add support to dm devices for REQ_OP_PROVISION. The default mode
> is to passthrough the request to the underlying device, if it
> supports it. dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-crypt.c         |   4 +-
>  drivers/md/dm-linear.c        |   1 +
>  drivers/md/dm-snap.c          |   7 +++

Have you tested REQ_OP_PROVISION with these targets?  Just want to
make sure you have an explicit need (and vested interest) for them
passing through REQ_OP_PROVISION.

> diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
> index 2055a758541d..5985343384a7 100644
> --- a/drivers/md/dm-table.c
> +++ b/drivers/md/dm-table.c
> @@ -1850,6 +1850,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
>  	return true;
>  }
>  
> +static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
> +				    sector_t start, sector_t len, void *data)
> +{
> +	return !bdev_max_provision_sectors(dev->bdev);
> +}
> +
> +static bool dm_table_supports_provision(struct dm_table *t)
> +{
> +	for (unsigned int i = 0; i < t->num_targets; i++) {
> +		struct dm_target *ti = dm_table_get_target(t, i);
> +
> +		if (ti->provision_supported ||
> +		    (ti->type->iterate_devices &&
> +		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
> +			return true;
> +	}
> +
> +	return false;
> +}
> +
>  static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
>  				     sector_t start, sector_t len, void *data)
>  {
> @@ -1983,6 +2003,11 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
>  	if (!dm_table_supports_write_zeroes(t))
>  		q->limits.max_write_zeroes_sectors = 0;
>  
> +	if (dm_table_supports_provision(t))
> +		blk_queue_max_provision_sectors(q, UINT_MAX >> 9);

This doesn't seem correct in that it'll override whatever
max_provision_sectors was set by a target (like thinp).

I think you only need the if (!dm_table_supports_provision)) case:

> +	else
> +		q->limits.max_provision_sectors = 0;
> +
>  	dm_table_verify_integrity(t);
>  
>  	/*
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 13d4677baafd..b08b7ae617be 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c

I think it'll make the most sense to split out the dm-thin.c changes
in a separate patch.

> @@ -909,7 +909,8 @@ static void __inc_remap_and_issue_cell(void *context,
>  	struct bio *bio;
>  
>  	while ((bio = bio_list_pop(&cell->bios))) {
> -		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> +		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +		    bio_op(bio) == REQ_OP_PROVISION)
>  			bio_list_add(&info->defer_bios, bio);
>  		else {
>  			inc_all_io_entry(info->tc->pool, bio);
> @@ -1013,6 +1014,15 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
>  		goto out;
>  	}
>  
> +	/*
> +	 * For provision requests, once the prepared block has been inserted
> +	 * into the mapping btree, return.
> +	 */
> +	if (bio && bio_op(bio) == REQ_OP_PROVISION) {
> +		bio_endio(bio);
> +		return;
> +	}
> +
>  	/*
>  	 * Release any bios held while the block was being provisioned.
>  	 * If we are processing a write bio that completely covers the block,
> @@ -1241,7 +1251,7 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
>  
>  static int io_overwrites_block(struct pool *pool, struct bio *bio)
>  {
> -	return (bio_data_dir(bio) == WRITE) &&
> +	return (bio_data_dir(bio) == WRITE) && bio_op(bio) != REQ_OP_PROVISION &&
>  		io_overlaps_block(pool, bio);
>  }
>  
> @@ -1334,10 +1344,11 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
>  	/*
>  	 * IO to pool_dev remaps to the pool target's data_dev.
>  	 *
> -	 * If the whole block of data is being overwritten, we can issue the
> -	 * bio immediately. Otherwise we use kcopyd to clone the data first.
> +	 * If the whole block of data is being overwritten and if this is not a
> +	 * provision request, we can issue the bio immediately.
> +	 * Otherwise we use kcopyd to clone the data first.
>  	 */
> -	if (io_overwrites_block(pool, bio))
> +	if (io_overwrites_block(pool, bio) && bio_op(bio) != REQ_OP_PROVISION)
>  		remap_and_issue_overwrite(tc, bio, data_dest, m);
>  	else {
>  		struct dm_io_region from, to;
> @@ -1356,7 +1367,8 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
>  		/*
>  		 * Do we need to zero a tail region?
>  		 */
> -		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) {
> +		if (len < pool->sectors_per_block && pool->pf.zero_new_blocks &&
> +		    bio_op(bio) != REQ_OP_PROVISION) {
>  			atomic_inc(&m->prepare_actions);
>  			ll_zero(tc, m,
>  				data_dest * pool->sectors_per_block + len,
> @@ -1390,6 +1402,10 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
>  	m->data_block = data_block;
>  	m->cell = cell;
>  
> +	/* Provision requests are chained on the original bio. */
> +	if (bio && bio_op(bio) == REQ_OP_PROVISION)
> +		m->bio = bio;
> +
>  	/*
>  	 * If the whole block of data is being overwritten or we are not
>  	 * zeroing pre-existing data, we can issue the bio immediately.
> @@ -1865,7 +1881,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
>  
>  	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
>  		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> -		cell_defer_no_holder(tc, virt_cell);
> +		if (bio_op(bio) != REQ_OP_PROVISION)
> +			cell_defer_no_holder(tc, virt_cell);
>  	} else {
>  		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
>  

Not confident in the above changes given the request that we only
handle REQ_OP_PROVISION one thinp block at a time.  So I'll gloss over
them for now.

> @@ -1982,6 +1999,73 @@ static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
>  	}
>  }
>  
> +static void process_provision_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> +{
> +	int r;
> +	struct pool *pool = tc->pool;
> +	struct bio *bio = cell->holder;
> +	dm_block_t begin, end;
> +	struct dm_thin_lookup_result lookup_result;
> +
> +	if (tc->requeue_mode) {
> +		cell_requeue(pool, cell);
> +		return;
> +	}
> +
> +	get_bio_block_range(tc, bio, &begin, &end);
> +
> +	while (begin != end) {
> +		r = ensure_next_mapping(pool);
> +		if (r)
> +			/* we did our best */
> +			return;
> +
> +		r = dm_thin_find_block(tc->td, begin, 1, &lookup_result);
> +		switch (r) {
> +		case 0:
> +			if (lookup_result.shared)
> +				process_shared_bio(tc, bio, begin,
> +						   &lookup_result, cell);
> +			begin++;
> +			break;
> +		case -ENODATA:
> +			bio_inc_remaining(bio);
> +			provision_block(tc, bio, begin, cell);
> +			begin++;
> +			break;
> +		default:
> +			DMERR_LIMIT(
> +				"%s: dm_thin_find_block() failed: error = %d",
> +				__func__, r);
> +			cell_defer_no_holder(tc, cell);
> +			bio_io_error(bio);
> +			begin++;
> +			break;
> +		}
> +	}
> +	bio_endio(bio);
> +	cell_defer_no_holder(tc, cell);
> +}
> +
> +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> +{
> +	dm_block_t begin, end;
> +	struct dm_cell_key virt_key;
> +	struct dm_bio_prison_cell *virt_cell;
> +
> +	get_bio_block_range(tc, bio, &begin, &end);
> +	if (begin == end) {
> +		bio_endio(bio);
> +		return;
> +	}

Like Joe mentioned, this pattern was fine for discards because they
are advisory/optional.  But we need to make sure we don't truncate
REQ_OP_PROVISION -- so we need to round up if we partially bleed into
the blocks to the left or right.

BUT ranged REQ_OP_PROVISION support is for later, this can be dealt
with more simply in that each REQ_OP_PROVISION will be handled a block
at a time initially.  SO you'll want to honor _all_ REQ_OP_PROVISION,
never returning early.

> +
> +	build_key(tc->td, VIRTUAL, begin, end, &virt_key);
> +	if (bio_detain(tc->pool, &virt_key, bio, &virt_cell))
> +		return;
> +
> +	process_provision_cell(tc, virt_cell);
> +}
> +
>  static void process_bio(struct thin_c *tc, struct bio *bio)
>  {
>  	struct pool *pool = tc->pool;
> @@ -2202,6 +2286,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
>  
>  		if (bio_op(bio) == REQ_OP_DISCARD)
>  			pool->process_discard(tc, bio);
> +		else if (bio_op(bio) == REQ_OP_PROVISION)
> +			process_provision_bio(tc, bio);

This should be pool->process_provision() (or ->process_provision_bio
if you like).  Point is, you need to be switching these methods
if/when the pool_mode transitions in set_pool_mode().

>  		else
>  			pool->process_bio(tc, bio);
>  
> @@ -2723,7 +2809,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
>  		return DM_MAPIO_SUBMITTED;
>  	}
>  
> -	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> +	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +	    bio_op(bio) == REQ_OP_PROVISION) {
>  		thin_defer_bio_with_throttle(tc, bio);
>  		return DM_MAPIO_SUBMITTED;
>  	}
> @@ -3370,6 +3457,8 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	pt->adjusted_pf = pt->requested_pf = pf;
>  	ti->num_flush_bios = 1;
>  	ti->limit_swap_bios = true;
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
>  
>  	/*
>  	 * Only need to enable discards if the pool should pass
> @@ -4068,6 +4157,7 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  		blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
>  	}
>  
> +

Please fix this extra whitespace damage.

>  	/*
>  	 * pt->adjusted_pf is a staging area for the actual features to use.
>  	 * They get transferred to the live pool in bind_control_target()
> @@ -4261,6 +4351,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  		ti->num_discard_bios = 1;
>  	}
>  
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
> +
>  	mutex_unlock(&dm_thin_pool_table.mutex);
>  
>  	spin_lock_irq(&tc->pool->lock);
> @@ -4475,6 +4568,7 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  
>  	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
>  	limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
> +	limits->max_provision_sectors = 2048 * 1024 * 16; /* 16G */

Building on my previous reply, with suggested update to
dm.c:__process_abnormal_io(), once you rebase on dm-6.4's dm-thin.c
you'll want to instead:

limits->max_provision_sectors = pool->sectors_per_block << SECTOR_SHIFT;

And you'll want to drop any of the above code that deals with handling
bio-prison range locking and processing of REQ_OP_PROVISION for
multiple thinp blocks at once.

Simple REQ_OP_PROVISION processing one thinp block at a time first and
then we can worry about handling REQ_OP_PROVISION that span blocks
later.

>  static struct target_type thin_target = {
> diff --git a/drivers/md/dm.c b/drivers/md/dm.c
> index dfde0088147a..d8f1803062b7 100644
> --- a/drivers/md/dm.c
> +++ b/drivers/md/dm.c
> @@ -1593,6 +1593,7 @@ static bool is_abnormal_io(struct bio *bio)
>  		case REQ_OP_DISCARD:
>  		case REQ_OP_SECURE_ERASE:
>  		case REQ_OP_WRITE_ZEROES:
> +		case REQ_OP_PROVISION:
>  			return true;
>  		default:
>  			break;
> @@ -1617,6 +1618,9 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
>  	case REQ_OP_WRITE_ZEROES:
>  		num_bios = ti->num_write_zeroes_bios;
>  		break;
> +	case REQ_OP_PROVISION:
> +		num_bios = ti->num_provision_bios;
> +		break;
>  	default:
>  		break;
>  	}

Please be sure to include my suggested __process_abnormal_io change
from my previous reply.

> diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
> index 7975483816e4..e9f687521ae6 100644
> --- a/include/linux/device-mapper.h
> +++ b/include/linux/device-mapper.h
> @@ -334,6 +334,12 @@ struct dm_target {
>  	 */
>  	unsigned int num_write_zeroes_bios;
>  
> +	/*
> +	 * The number of PROVISION bios that will be submitted to the target.
> +	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
> +	 */
> +	unsigned int num_provision_bios;
> +
>  	/*
>  	 * The minimum number of extra bytes allocated in each io for the
>  	 * target to use.
> @@ -358,6 +364,11 @@ struct dm_target {
>  	 */
>  	bool discards_supported:1;
>  
> +	/* Set if this target needs to receive provision requests regardless of
> +	 * whether or not its underlying devices have support.
> +	 */
> +	bool provision_supported:1;
> +
>  	/*
>  	 * Set if we need to limit the number of in-flight bios when swapping.
>  	 */

You'll need to add max_provision_granularity bool too (as implied by
the dm.c:__process_abnormal_io() change suggested in my first reply to
this patch).

I'm happy to wait for you to consume the v3 feedback we've provided so
you can create a v4.  I'm thinking I can base dm-thin.c's WRITE_ZEROES
support ontop of your REQ_OP_PROVISION v4 changes -- they should be
complementary.

Thanks,
Mike

Re: [dm-devel] [PATCH v3 2/3] dm: Add support for block provisioning

[Sarthak Kukreti]

On Fri, Apr 14, 2023 at 2:58 PM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Thu, Apr 13 2023 at  8:02P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > Add support to dm devices for REQ_OP_PROVISION. The default mode
> > is to passthrough the request to the underlying device, if it
> > supports it. dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-crypt.c         |   4 +-
> >  drivers/md/dm-linear.c        |   1 +
> >  drivers/md/dm-snap.c          |   7 +++
>
> Have you tested REQ_OP_PROVISION with these targets?  Just want to
> make sure you have an explicit need (and vested interest) for them
> passing through REQ_OP_PROVISION.
>

Yes. I have a vested interest in dm-linear and dm-crypt; I kept
dm-snap support mostly for consistency with thin snapshots.

> > diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
> > index 2055a758541d..5985343384a7 100644
> > --- a/drivers/md/dm-table.c
> > +++ b/drivers/md/dm-table.c
> > @@ -1850,6 +1850,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
> >       return true;
> >  }
> >
> > +static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
> > +                                 sector_t start, sector_t len, void *data)
> > +{
> > +     return !bdev_max_provision_sectors(dev->bdev);
> > +}
> > +
> > +static bool dm_table_supports_provision(struct dm_table *t)
> > +{
> > +     for (unsigned int i = 0; i < t->num_targets; i++) {
> > +             struct dm_target *ti = dm_table_get_target(t, i);
> > +
> > +             if (ti->provision_supported ||
> > +                 (ti->type->iterate_devices &&
> > +                 ti->type->iterate_devices(ti, device_provision_capable, NULL)))
> > +                     return true;
> > +     }
> > +
> > +     return false;
> > +}
> > +
> >  static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
> >                                    sector_t start, sector_t len, void *data)
> >  {
> > @@ -1983,6 +2003,11 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
> >       if (!dm_table_supports_write_zeroes(t))
> >               q->limits.max_write_zeroes_sectors = 0;
> >
> > +     if (dm_table_supports_provision(t))
> > +             blk_queue_max_provision_sectors(q, UINT_MAX >> 9);
>
> This doesn't seem correct in that it'll override whatever
> max_provision_sectors was set by a target (like thinp).
>
> I think you only need the if (!dm_table_supports_provision)) case:
>
Done

> > +     else
> > +             q->limits.max_provision_sectors = 0;
> > +
> >       dm_table_verify_integrity(t);
> >
> >       /*
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 13d4677baafd..b08b7ae617be 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
>
> I think it'll make the most sense to split out the dm-thin.c changes
> in a separate patch.
>
Separated the dm-thin changes into a separate patch that follows this one in v4.

> > @@ -909,7 +909,8 @@ static void __inc_remap_and_issue_cell(void *context,
> >       struct bio *bio;
> >
> >       while ((bio = bio_list_pop(&cell->bios))) {
> > -             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> > +             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +                 bio_op(bio) == REQ_OP_PROVISION)
> >                       bio_list_add(&info->defer_bios, bio);
> >               else {
> >                       inc_all_io_entry(info->tc->pool, bio);
> > @@ -1013,6 +1014,15 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
> >               goto out;
> >       }
> >
> > +     /*
> > +      * For provision requests, once the prepared block has been inserted
> > +      * into the mapping btree, return.
> > +      */
> > +     if (bio && bio_op(bio) == REQ_OP_PROVISION) {
> > +             bio_endio(bio);
> > +             return;
> > +     }
> > +
> >       /*
> >        * Release any bios held while the block was being provisioned.
> >        * If we are processing a write bio that completely covers the block,
> > @@ -1241,7 +1251,7 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
> >
> >  static int io_overwrites_block(struct pool *pool, struct bio *bio)
> >  {
> > -     return (bio_data_dir(bio) == WRITE) &&
> > +     return (bio_data_dir(bio) == WRITE) && bio_op(bio) != REQ_OP_PROVISION &&
> >               io_overlaps_block(pool, bio);
> >  }
> >
> > @@ -1334,10 +1344,11 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
> >       /*
> >        * IO to pool_dev remaps to the pool target's data_dev.
> >        *
> > -      * If the whole block of data is being overwritten, we can issue the
> > -      * bio immediately. Otherwise we use kcopyd to clone the data first.
> > +      * If the whole block of data is being overwritten and if this is not a
> > +      * provision request, we can issue the bio immediately.
> > +      * Otherwise we use kcopyd to clone the data first.
> >        */
> > -     if (io_overwrites_block(pool, bio))
> > +     if (io_overwrites_block(pool, bio) && bio_op(bio) != REQ_OP_PROVISION)
> >               remap_and_issue_overwrite(tc, bio, data_dest, m);
> >       else {
> >               struct dm_io_region from, to;
> > @@ -1356,7 +1367,8 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
> >               /*
> >                * Do we need to zero a tail region?
> >                */
> > -             if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) {
> > +             if (len < pool->sectors_per_block && pool->pf.zero_new_blocks &&
> > +                 bio_op(bio) != REQ_OP_PROVISION) {
> >                       atomic_inc(&m->prepare_actions);
> >                       ll_zero(tc, m,
> >                               data_dest * pool->sectors_per_block + len,
> > @@ -1390,6 +1402,10 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
> >       m->data_block = data_block;
> >       m->cell = cell;
> >
> > +     /* Provision requests are chained on the original bio. */
> > +     if (bio && bio_op(bio) == REQ_OP_PROVISION)
> > +             m->bio = bio;
> > +
> >       /*
> >        * If the whole block of data is being overwritten or we are not
> >        * zeroing pre-existing data, we can issue the bio immediately.
> > @@ -1865,7 +1881,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
> >
> >       if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
> >               break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> > -             cell_defer_no_holder(tc, virt_cell);
> > +             if (bio_op(bio) != REQ_OP_PROVISION)
> > +                     cell_defer_no_holder(tc, virt_cell);
> >       } else {
> >               struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
> >
>
> Not confident in the above changes given the request that we only
> handle REQ_OP_PROVISION one thinp block at a time.  So I'll gloss over
> them for now.
>
Yeah, the majority of this got removed in v4. I added a check in
io_overwrites_block() to return false for all provision requests.

> > @@ -1982,6 +1999,73 @@ static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> >       }
> >  }
> >
> > +static void process_provision_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> > +{
> > +     int r;
> > +     struct pool *pool = tc->pool;
> > +     struct bio *bio = cell->holder;
> > +     dm_block_t begin, end;
> > +     struct dm_thin_lookup_result lookup_result;
> > +
> > +     if (tc->requeue_mode) {
> > +             cell_requeue(pool, cell);
> > +             return;
> > +     }
> > +
> > +     get_bio_block_range(tc, bio, &begin, &end);
> > +
> > +     while (begin != end) {
> > +             r = ensure_next_mapping(pool);
> > +             if (r)
> > +                     /* we did our best */
> > +                     return;
> > +
> > +             r = dm_thin_find_block(tc->td, begin, 1, &lookup_result);
> > +             switch (r) {
> > +             case 0:
> > +                     if (lookup_result.shared)
> > +                             process_shared_bio(tc, bio, begin,
> > +                                                &lookup_result, cell);
> > +                     begin++;
> > +                     break;
> > +             case -ENODATA:
> > +                     bio_inc_remaining(bio);
> > +                     provision_block(tc, bio, begin, cell);
> > +                     begin++;
> > +                     break;
> > +             default:
> > +                     DMERR_LIMIT(
> > +                             "%s: dm_thin_find_block() failed: error = %d",
> > +                             __func__, r);
> > +                     cell_defer_no_holder(tc, cell);
> > +                     bio_io_error(bio);
> > +                     begin++;
> > +                     break;
> > +             }
> > +     }
> > +     bio_endio(bio);
> > +     cell_defer_no_holder(tc, cell);
> > +}
> > +
> > +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> > +{
> > +     dm_block_t begin, end;
> > +     struct dm_cell_key virt_key;
> > +     struct dm_bio_prison_cell *virt_cell;
> > +
> > +     get_bio_block_range(tc, bio, &begin, &end);
> > +     if (begin == end) {
> > +             bio_endio(bio);
> > +             return;
> > +     }
>
> Like Joe mentioned, this pattern was fine for discards because they
> are advisory/optional.  But we need to make sure we don't truncate
> REQ_OP_PROVISION -- so we need to round up if we partially bleed into
> the blocks to the left or right.
>
> BUT ranged REQ_OP_PROVISION support is for later, this can be dealt
> with more simply in that each REQ_OP_PROVISION will be handled a block
> at a time initially.  SO you'll want to honor _all_ REQ_OP_PROVISION,
> never returning early.
>
Thanks. The next patch in the series has the simplified version. It
had a lot in common with process_bio() so there was a possibility for
merging the two code paths, but I opted to keep it like this to make
ranged handling and passdown support easier to implement.

> > +
> > +     build_key(tc->td, VIRTUAL, begin, end, &virt_key);
> > +     if (bio_detain(tc->pool, &virt_key, bio, &virt_cell))
> > +             return;
> > +
> > +     process_provision_cell(tc, virt_cell);
> > +}
> > +
> >  static void process_bio(struct thin_c *tc, struct bio *bio)
> >  {
> >       struct pool *pool = tc->pool;
> > @@ -2202,6 +2286,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
> >
> >               if (bio_op(bio) == REQ_OP_DISCARD)
> >                       pool->process_discard(tc, bio);
> > +             else if (bio_op(bio) == REQ_OP_PROVISION)
> > +                     process_provision_bio(tc, bio);
>
> This should be pool->process_provision() (or ->process_provision_bio
> if you like).  Point is, you need to be switching these methods
> if/when the pool_mode transitions in set_pool_mode().
>
Done

> >               else
> >                       pool->process_bio(tc, bio);
> >
> > @@ -2723,7 +2809,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
> >               return DM_MAPIO_SUBMITTED;
> >       }
> >
> > -     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> > +     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +         bio_op(bio) == REQ_OP_PROVISION) {
> >               thin_defer_bio_with_throttle(tc, bio);
> >               return DM_MAPIO_SUBMITTED;
> >       }
> > @@ -3370,6 +3457,8 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >       pt->adjusted_pf = pt->requested_pf = pf;
> >       ti->num_flush_bios = 1;
> >       ti->limit_swap_bios = true;
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> >
> >       /*
> >        * Only need to enable discards if the pool should pass
> > @@ -4068,6 +4157,7 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >               blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
> >       }
> >
> > +
>
> Please fix this extra whitespace damage.
>
Done

> >       /*
> >        * pt->adjusted_pf is a staging area for the actual features to use.
> >        * They get transferred to the live pool in bind_control_target()
> > @@ -4261,6 +4351,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >               ti->num_discard_bios = 1;
> >       }
> >
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> > +
> >       mutex_unlock(&dm_thin_pool_table.mutex);
> >
> >       spin_lock_irq(&tc->pool->lock);
> > @@ -4475,6 +4568,7 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >
> >       limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
> >       limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
> > +     limits->max_provision_sectors = 2048 * 1024 * 16; /* 16G */
>
> Building on my previous reply, with suggested update to
> dm.c:__process_abnormal_io(), once you rebase on dm-6.4's dm-thin.c
> you'll want to instead:
>
> limits->max_provision_sectors = pool->sectors_per_block << SECTOR_SHIFT;
>
> And you'll want to drop any of the above code that deals with handling
> bio-prison range locking and processing of REQ_OP_PROVISION for
> multiple thinp blocks at once.
>
> Simple REQ_OP_PROVISION processing one thinp block at a time first and
> then we can worry about handling REQ_OP_PROVISION that span blocks
> later.
>
Thanks, done in v4.

> >  static struct target_type thin_target = {
> > diff --git a/drivers/md/dm.c b/drivers/md/dm.c
> > index dfde0088147a..d8f1803062b7 100644
> > --- a/drivers/md/dm.c
> > +++ b/drivers/md/dm.c
> > @@ -1593,6 +1593,7 @@ static bool is_abnormal_io(struct bio *bio)
> >               case REQ_OP_DISCARD:
> >               case REQ_OP_SECURE_ERASE:
> >               case REQ_OP_WRITE_ZEROES:
> > +             case REQ_OP_PROVISION:
> >                       return true;
> >               default:
> >                       break;
> > @@ -1617,6 +1618,9 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
> >       case REQ_OP_WRITE_ZEROES:
> >               num_bios = ti->num_write_zeroes_bios;
> >               break;
> > +     case REQ_OP_PROVISION:
> > +             num_bios = ti->num_provision_bios;
> > +             break;
> >       default:
> >               break;
> >       }
>
> Please be sure to include my suggested __process_abnormal_io change
> from my previous reply.
>
Done.

> > diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
> > index 7975483816e4..e9f687521ae6 100644
> > --- a/include/linux/device-mapper.h
> > +++ b/include/linux/device-mapper.h
> > @@ -334,6 +334,12 @@ struct dm_target {
> >        */
> >       unsigned int num_write_zeroes_bios;
> >
> > +     /*
> > +      * The number of PROVISION bios that will be submitted to the target.
> > +      * The bio number can be accessed with dm_bio_get_target_bio_nr.
> > +      */
> > +     unsigned int num_provision_bios;
> > +
> >       /*
> >        * The minimum number of extra bytes allocated in each io for the
> >        * target to use.
> > @@ -358,6 +364,11 @@ struct dm_target {
> >        */
> >       bool discards_supported:1;
> >
> > +     /* Set if this target needs to receive provision requests regardless of
> > +      * whether or not its underlying devices have support.
> > +      */
> > +     bool provision_supported:1;
> > +
> >       /*
> >        * Set if we need to limit the number of in-flight bios when swapping.
> >        */
>
> You'll need to add max_provision_granularity bool too (as implied by
> the dm.c:__process_abnormal_io() change suggested in my first reply to
> this patch).
>
> I'm happy to wait for you to consume the v3 feedback we've provided so
> you can create a v4.  I'm thinking I can base dm-thin.c's WRITE_ZEROES
> support ontop of your REQ_OP_PROVISION v4 changes -- they should be
> complementary.
>
Done. Thanks for the review and guidance!

Best
Sarthak

> Thanks,
> Mike

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Re: [PATCH v3 2/3] dm: Add support for block provisioning

[Sarthak Kukreti]

On Fri, Apr 14, 2023 at 2:58 PM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Thu, Apr 13 2023 at  8:02P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > Add support to dm devices for REQ_OP_PROVISION. The default mode
> > is to passthrough the request to the underlying device, if it
> > supports it. dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-crypt.c         |   4 +-
> >  drivers/md/dm-linear.c        |   1 +
> >  drivers/md/dm-snap.c          |   7 +++
>
> Have you tested REQ_OP_PROVISION with these targets?  Just want to
> make sure you have an explicit need (and vested interest) for them
> passing through REQ_OP_PROVISION.
>

Yes. I have a vested interest in dm-linear and dm-crypt; I kept
dm-snap support mostly for consistency with thin snapshots.

> > diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
> > index 2055a758541d..5985343384a7 100644
> > --- a/drivers/md/dm-table.c
> > +++ b/drivers/md/dm-table.c
> > @@ -1850,6 +1850,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
> >       return true;
> >  }
> >
> > +static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
> > +                                 sector_t start, sector_t len, void *data)
> > +{
> > +     return !bdev_max_provision_sectors(dev->bdev);
> > +}
> > +
> > +static bool dm_table_supports_provision(struct dm_table *t)
> > +{
> > +     for (unsigned int i = 0; i < t->num_targets; i++) {
> > +             struct dm_target *ti = dm_table_get_target(t, i);
> > +
> > +             if (ti->provision_supported ||
> > +                 (ti->type->iterate_devices &&
> > +                 ti->type->iterate_devices(ti, device_provision_capable, NULL)))
> > +                     return true;
> > +     }
> > +
> > +     return false;
> > +}
> > +
> >  static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
> >                                    sector_t start, sector_t len, void *data)
> >  {
> > @@ -1983,6 +2003,11 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
> >       if (!dm_table_supports_write_zeroes(t))
> >               q->limits.max_write_zeroes_sectors = 0;
> >
> > +     if (dm_table_supports_provision(t))
> > +             blk_queue_max_provision_sectors(q, UINT_MAX >> 9);
>
> This doesn't seem correct in that it'll override whatever
> max_provision_sectors was set by a target (like thinp).
>
> I think you only need the if (!dm_table_supports_provision)) case:
>
Done

> > +     else
> > +             q->limits.max_provision_sectors = 0;
> > +
> >       dm_table_verify_integrity(t);
> >
> >       /*
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 13d4677baafd..b08b7ae617be 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
>
> I think it'll make the most sense to split out the dm-thin.c changes
> in a separate patch.
>
Separated the dm-thin changes into a separate patch that follows this one in v4.

> > @@ -909,7 +909,8 @@ static void __inc_remap_and_issue_cell(void *context,
> >       struct bio *bio;
> >
> >       while ((bio = bio_list_pop(&cell->bios))) {
> > -             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> > +             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +                 bio_op(bio) == REQ_OP_PROVISION)
> >                       bio_list_add(&info->defer_bios, bio);
> >               else {
> >                       inc_all_io_entry(info->tc->pool, bio);
> > @@ -1013,6 +1014,15 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
> >               goto out;
> >       }
> >
> > +     /*
> > +      * For provision requests, once the prepared block has been inserted
> > +      * into the mapping btree, return.
> > +      */
> > +     if (bio && bio_op(bio) == REQ_OP_PROVISION) {
> > +             bio_endio(bio);
> > +             return;
> > +     }
> > +
> >       /*
> >        * Release any bios held while the block was being provisioned.
> >        * If we are processing a write bio that completely covers the block,
> > @@ -1241,7 +1251,7 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
> >
> >  static int io_overwrites_block(struct pool *pool, struct bio *bio)
> >  {
> > -     return (bio_data_dir(bio) == WRITE) &&
> > +     return (bio_data_dir(bio) == WRITE) && bio_op(bio) != REQ_OP_PROVISION &&
> >               io_overlaps_block(pool, bio);
> >  }
> >
> > @@ -1334,10 +1344,11 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
> >       /*
> >        * IO to pool_dev remaps to the pool target's data_dev.
> >        *
> > -      * If the whole block of data is being overwritten, we can issue the
> > -      * bio immediately. Otherwise we use kcopyd to clone the data first.
> > +      * If the whole block of data is being overwritten and if this is not a
> > +      * provision request, we can issue the bio immediately.
> > +      * Otherwise we use kcopyd to clone the data first.
> >        */
> > -     if (io_overwrites_block(pool, bio))
> > +     if (io_overwrites_block(pool, bio) && bio_op(bio) != REQ_OP_PROVISION)
> >               remap_and_issue_overwrite(tc, bio, data_dest, m);
> >       else {
> >               struct dm_io_region from, to;
> > @@ -1356,7 +1367,8 @@ static void schedule_copy(struct thin_c *tc, dm_block_t virt_block,
> >               /*
> >                * Do we need to zero a tail region?
> >                */
> > -             if (len < pool->sectors_per_block && pool->pf.zero_new_blocks) {
> > +             if (len < pool->sectors_per_block && pool->pf.zero_new_blocks &&
> > +                 bio_op(bio) != REQ_OP_PROVISION) {
> >                       atomic_inc(&m->prepare_actions);
> >                       ll_zero(tc, m,
> >                               data_dest * pool->sectors_per_block + len,
> > @@ -1390,6 +1402,10 @@ static void schedule_zero(struct thin_c *tc, dm_block_t virt_block,
> >       m->data_block = data_block;
> >       m->cell = cell;
> >
> > +     /* Provision requests are chained on the original bio. */
> > +     if (bio && bio_op(bio) == REQ_OP_PROVISION)
> > +             m->bio = bio;
> > +
> >       /*
> >        * If the whole block of data is being overwritten or we are not
> >        * zeroing pre-existing data, we can issue the bio immediately.
> > @@ -1865,7 +1881,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
> >
> >       if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
> >               break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> > -             cell_defer_no_holder(tc, virt_cell);
> > +             if (bio_op(bio) != REQ_OP_PROVISION)
> > +                     cell_defer_no_holder(tc, virt_cell);
> >       } else {
> >               struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
> >
>
> Not confident in the above changes given the request that we only
> handle REQ_OP_PROVISION one thinp block at a time.  So I'll gloss over
> them for now.
>
Yeah, the majority of this got removed in v4. I added a check in
io_overwrites_block() to return false for all provision requests.

> > @@ -1982,6 +1999,73 @@ static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> >       }
> >  }
> >
> > +static void process_provision_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> > +{
> > +     int r;
> > +     struct pool *pool = tc->pool;
> > +     struct bio *bio = cell->holder;
> > +     dm_block_t begin, end;
> > +     struct dm_thin_lookup_result lookup_result;
> > +
> > +     if (tc->requeue_mode) {
> > +             cell_requeue(pool, cell);
> > +             return;
> > +     }
> > +
> > +     get_bio_block_range(tc, bio, &begin, &end);
> > +
> > +     while (begin != end) {
> > +             r = ensure_next_mapping(pool);
> > +             if (r)
> > +                     /* we did our best */
> > +                     return;
> > +
> > +             r = dm_thin_find_block(tc->td, begin, 1, &lookup_result);
> > +             switch (r) {
> > +             case 0:
> > +                     if (lookup_result.shared)
> > +                             process_shared_bio(tc, bio, begin,
> > +                                                &lookup_result, cell);
> > +                     begin++;
> > +                     break;
> > +             case -ENODATA:
> > +                     bio_inc_remaining(bio);
> > +                     provision_block(tc, bio, begin, cell);
> > +                     begin++;
> > +                     break;
> > +             default:
> > +                     DMERR_LIMIT(
> > +                             "%s: dm_thin_find_block() failed: error = %d",
> > +                             __func__, r);
> > +                     cell_defer_no_holder(tc, cell);
> > +                     bio_io_error(bio);
> > +                     begin++;
> > +                     break;
> > +             }
> > +     }
> > +     bio_endio(bio);
> > +     cell_defer_no_holder(tc, cell);
> > +}
> > +
> > +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> > +{
> > +     dm_block_t begin, end;
> > +     struct dm_cell_key virt_key;
> > +     struct dm_bio_prison_cell *virt_cell;
> > +
> > +     get_bio_block_range(tc, bio, &begin, &end);
> > +     if (begin == end) {
> > +             bio_endio(bio);
> > +             return;
> > +     }
>
> Like Joe mentioned, this pattern was fine for discards because they
> are advisory/optional.  But we need to make sure we don't truncate
> REQ_OP_PROVISION -- so we need to round up if we partially bleed into
> the blocks to the left or right.
>
> BUT ranged REQ_OP_PROVISION support is for later, this can be dealt
> with more simply in that each REQ_OP_PROVISION will be handled a block
> at a time initially.  SO you'll want to honor _all_ REQ_OP_PROVISION,
> never returning early.
>
Thanks. The next patch in the series has the simplified version. It
had a lot in common with process_bio() so there was a possibility for
merging the two code paths, but I opted to keep it like this to make
ranged handling and passdown support easier to implement.

> > +
> > +     build_key(tc->td, VIRTUAL, begin, end, &virt_key);
> > +     if (bio_detain(tc->pool, &virt_key, bio, &virt_cell))
> > +             return;
> > +
> > +     process_provision_cell(tc, virt_cell);
> > +}
> > +
> >  static void process_bio(struct thin_c *tc, struct bio *bio)
> >  {
> >       struct pool *pool = tc->pool;
> > @@ -2202,6 +2286,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
> >
> >               if (bio_op(bio) == REQ_OP_DISCARD)
> >                       pool->process_discard(tc, bio);
> > +             else if (bio_op(bio) == REQ_OP_PROVISION)
> > +                     process_provision_bio(tc, bio);
>
> This should be pool->process_provision() (or ->process_provision_bio
> if you like).  Point is, you need to be switching these methods
> if/when the pool_mode transitions in set_pool_mode().
>
Done

> >               else
> >                       pool->process_bio(tc, bio);
> >
> > @@ -2723,7 +2809,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
> >               return DM_MAPIO_SUBMITTED;
> >       }
> >
> > -     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> > +     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +         bio_op(bio) == REQ_OP_PROVISION) {
> >               thin_defer_bio_with_throttle(tc, bio);
> >               return DM_MAPIO_SUBMITTED;
> >       }
> > @@ -3370,6 +3457,8 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >       pt->adjusted_pf = pt->requested_pf = pf;
> >       ti->num_flush_bios = 1;
> >       ti->limit_swap_bios = true;
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> >
> >       /*
> >        * Only need to enable discards if the pool should pass
> > @@ -4068,6 +4157,7 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >               blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
> >       }
> >
> > +
>
> Please fix this extra whitespace damage.
>
Done

> >       /*
> >        * pt->adjusted_pf is a staging area for the actual features to use.
> >        * They get transferred to the live pool in bind_control_target()
> > @@ -4261,6 +4351,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >               ti->num_discard_bios = 1;
> >       }
> >
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> > +
> >       mutex_unlock(&dm_thin_pool_table.mutex);
> >
> >       spin_lock_irq(&tc->pool->lock);
> > @@ -4475,6 +4568,7 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >
> >       limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
> >       limits->max_discard_sectors = 2048 * 1024 * 16; /* 16G */
> > +     limits->max_provision_sectors = 2048 * 1024 * 16; /* 16G */
>
> Building on my previous reply, with suggested update to
> dm.c:__process_abnormal_io(), once you rebase on dm-6.4's dm-thin.c
> you'll want to instead:
>
> limits->max_provision_sectors = pool->sectors_per_block << SECTOR_SHIFT;
>
> And you'll want to drop any of the above code that deals with handling
> bio-prison range locking and processing of REQ_OP_PROVISION for
> multiple thinp blocks at once.
>
> Simple REQ_OP_PROVISION processing one thinp block at a time first and
> then we can worry about handling REQ_OP_PROVISION that span blocks
> later.
>
Thanks, done in v4.

> >  static struct target_type thin_target = {
> > diff --git a/drivers/md/dm.c b/drivers/md/dm.c
> > index dfde0088147a..d8f1803062b7 100644
> > --- a/drivers/md/dm.c
> > +++ b/drivers/md/dm.c
> > @@ -1593,6 +1593,7 @@ static bool is_abnormal_io(struct bio *bio)
> >               case REQ_OP_DISCARD:
> >               case REQ_OP_SECURE_ERASE:
> >               case REQ_OP_WRITE_ZEROES:
> > +             case REQ_OP_PROVISION:
> >                       return true;
> >               default:
> >                       break;
> > @@ -1617,6 +1618,9 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
> >       case REQ_OP_WRITE_ZEROES:
> >               num_bios = ti->num_write_zeroes_bios;
> >               break;
> > +     case REQ_OP_PROVISION:
> > +             num_bios = ti->num_provision_bios;
> > +             break;
> >       default:
> >               break;
> >       }
>
> Please be sure to include my suggested __process_abnormal_io change
> from my previous reply.
>
Done.

> > diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
> > index 7975483816e4..e9f687521ae6 100644
> > --- a/include/linux/device-mapper.h
> > +++ b/include/linux/device-mapper.h
> > @@ -334,6 +334,12 @@ struct dm_target {
> >        */
> >       unsigned int num_write_zeroes_bios;
> >
> > +     /*
> > +      * The number of PROVISION bios that will be submitted to the target.
> > +      * The bio number can be accessed with dm_bio_get_target_bio_nr.
> > +      */
> > +     unsigned int num_provision_bios;
> > +
> >       /*
> >        * The minimum number of extra bytes allocated in each io for the
> >        * target to use.
> > @@ -358,6 +364,11 @@ struct dm_target {
> >        */
> >       bool discards_supported:1;
> >
> > +     /* Set if this target needs to receive provision requests regardless of
> > +      * whether or not its underlying devices have support.
> > +      */
> > +     bool provision_supported:1;
> > +
> >       /*
> >        * Set if we need to limit the number of in-flight bios when swapping.
> >        */
>
> You'll need to add max_provision_granularity bool too (as implied by
> the dm.c:__process_abnormal_io() change suggested in my first reply to
> this patch).
>
> I'm happy to wait for you to consume the v3 feedback we've provided so
> you can create a v4.  I'm thinking I can base dm-thin.c's WRITE_ZEROES
> support ontop of your REQ_OP_PROVISION v4 changes -- they should be
> complementary.
>
Done. Thanks for the review and guidance!

Best
Sarthak

> Thanks,
> Mike

[dm-devel] [PATCH v3 3/3] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v3 3/3] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v4 0/4] Introduce provisioning primitives for thinly provisioned storage

[Sarthak Kukreti]

Hi,

This patch series is revision 4 of introducing a new mechanism to pass through provision requests on stacked thinly provisioned storage devices. See [1] for original cover letter.

[1] https://lore.kernel.org/lkml/ZDnMl8A1B1+Tfn5S@redhat.com/T/#md4f20113c2242755747ae069f84be720a6751012

Changelog:

V4:
- Fix UNSHARE and KEEP_SIZE handling in blkdev_fallocate.
- Split dm-thin support into a separate patch.
- Remove ranged provision request handling and adjust io hints to handle provisioning one block at a time.
- Add missing provision_supported for dm targets.

V3:
- Drop FALLOC_FL_PROVISION and use mode == 0 for provision requests.
- Drop fs-specific patches; will be sent out in a follow up series.
- Fix missing shared block handling for thin snapshots.

V2:
- Fix stacked limit handling.
- Enable provision request handling in dm-snapshot
- Don't call truncate_bdev_range if blkdev_fallocate() is called with
  FALLOC_FL_PROVISION.
- Clarify semantics of FALLOC_FL_PROVISION and why it needs to be a separate flag
  (as opposed to overloading mode == 0).


Sarthak Kukreti (4):
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 +++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 +++++++++
 block/blk-sysfs.c             |  8 ++++
 block/bounce.c                |  1 +
 block/fops.c                  | 25 +++++++++---
 drivers/block/loop.c          | 42 ++++++++++++++++++++
 drivers/md/dm-crypt.c         |  5 ++-
 drivers/md/dm-linear.c        |  2 +
 drivers/md/dm-snap.c          |  8 ++++
 drivers/md/dm-table.c         | 23 +++++++++++
 drivers/md/dm-thin.c          | 73 ++++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 ++++++++
 18 files changed, 317 insertions(+), 15 deletions(-)

-- 
2.40.0.634.g4ca3ef3211-goog

--
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https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v4 0/4] Introduce provisioning primitives for thinly provisioned storage

[Sarthak Kukreti]

Hi,

This patch series is revision 4 of introducing a new mechanism to pass through provision requests on stacked thinly provisioned storage devices. See [1] for original cover letter.

[1] https://lore.kernel.org/lkml/ZDnMl8A1B1+Tfn5S@redhat.com/T/#md4f20113c2242755747ae069f84be720a6751012

Changelog:

V4:
- Fix UNSHARE and KEEP_SIZE handling in blkdev_fallocate.
- Split dm-thin support into a separate patch.
- Remove ranged provision request handling and adjust io hints to handle provisioning one block at a time.
- Add missing provision_supported for dm targets.

V3:
- Drop FALLOC_FL_PROVISION and use mode == 0 for provision requests.
- Drop fs-specific patches; will be sent out in a follow up series.
- Fix missing shared block handling for thin snapshots.

V2:
- Fix stacked limit handling.
- Enable provision request handling in dm-snapshot
- Don't call truncate_bdev_range if blkdev_fallocate() is called with
  FALLOC_FL_PROVISION.
- Clarify semantics of FALLOC_FL_PROVISION and why it needs to be a separate flag
  (as opposed to overloading mode == 0).


Sarthak Kukreti (4):
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 +++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 +++++++++
 block/blk-sysfs.c             |  8 ++++
 block/bounce.c                |  1 +
 block/fops.c                  | 25 +++++++++---
 drivers/block/loop.c          | 42 ++++++++++++++++++++
 drivers/md/dm-crypt.c         |  5 ++-
 drivers/md/dm-linear.c        |  2 +
 drivers/md/dm-snap.c          |  8 ++++
 drivers/md/dm-table.c         | 23 +++++++++++
 drivers/md/dm-thin.c          | 73 ++++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 ++++++++
 18 files changed, 317 insertions(+), 15 deletions(-)

-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  8 ++++++
 block/bounce.c            |  1 +
 block/fops.c              | 25 +++++++++++++-----
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 147 insertions(+), 9 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..202aa78f933e 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -132,6 +132,12 @@ static ssize_t queue_max_discard_segments_show(struct request_queue *q,
 	return queue_var_show(queue_max_discard_segments(q), page);
 }
 
+static ssize_t queue_max_provision_sectors_show(struct request_queue *q,
+		char *page)
+{
+	return queue_var_show(queue_max_provision_sectors(q), (page));
+}
+
 static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(q->limits.max_integrity_segments, page);
@@ -599,6 +605,7 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
 QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
 
 QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
+QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
 QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
 QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
@@ -648,6 +655,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_max_sectors_entry.attr,
 	&queue_max_segments_entry.attr,
 	&queue_max_discard_segments_entry.attr,
+	&queue_max_provision_sectors_entry.attr,
 	&queue_max_integrity_segments_entry.attr,
 	&queue_max_segment_size_entry.attr,
 	&elv_iosched_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..e1775269654a 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	return ret;
 }
 
+#define	BLKDEV_FALLOC_FL_TRUNCATE				\
+		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\
+		 FALLOC_FL_NO_HIDE_STALE)
+
 #define	BLKDEV_FALLOC_FL_SUPPORTED					\
-		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
-		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
+		(BLKDEV_FALLOC_FL_TRUNCATE | FALLOC_FL_KEEP_SIZE |	\
+		 FALLOC_FL_UNSHARE_RANGE)
 
 static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 			     loff_t len)
@@ -625,7 +629,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	int error;
 
 	/* Fail if we don't recognize the flags. */
-	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
+	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
 		return -EOPNOTSUPP;
 
 	/* Don't go off the end of the device. */
@@ -649,11 +653,20 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	filemap_invalidate_lock(inode->i_mapping);
 
 	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
+	if (mode & BLKDEV_FALLOC_FL_TRUNCATE) {
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+	}
 
 	switch (mode) {
+	case 0:
+	case FALLOC_FL_UNSHARE_RANGE:
+	case FALLOC_FL_KEEP_SIZE:
+	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.0.634.g4ca3ef3211-goog

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[PATCH v4 1/4] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  8 ++++++
 block/bounce.c            |  1 +
 block/fops.c              | 25 +++++++++++++-----
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 147 insertions(+), 9 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..202aa78f933e 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -132,6 +132,12 @@ static ssize_t queue_max_discard_segments_show(struct request_queue *q,
 	return queue_var_show(queue_max_discard_segments(q), page);
 }
 
+static ssize_t queue_max_provision_sectors_show(struct request_queue *q,
+		char *page)
+{
+	return queue_var_show(queue_max_provision_sectors(q), (page));
+}
+
 static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(q->limits.max_integrity_segments, page);
@@ -599,6 +605,7 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
 QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
 
 QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
+QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
 QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
 QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
@@ -648,6 +655,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_max_sectors_entry.attr,
 	&queue_max_segments_entry.attr,
 	&queue_max_discard_segments_entry.attr,
+	&queue_max_provision_sectors_entry.attr,
 	&queue_max_integrity_segments_entry.attr,
 	&queue_max_segment_size_entry.attr,
 	&elv_iosched_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..e1775269654a 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 	return ret;
 }
 
+#define	BLKDEV_FALLOC_FL_TRUNCATE				\
+		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\
+		 FALLOC_FL_NO_HIDE_STALE)
+
 #define	BLKDEV_FALLOC_FL_SUPPORTED					\
-		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
-		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
+		(BLKDEV_FALLOC_FL_TRUNCATE | FALLOC_FL_KEEP_SIZE |	\
+		 FALLOC_FL_UNSHARE_RANGE)
 
 static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 			     loff_t len)
@@ -625,7 +629,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	int error;
 
 	/* Fail if we don't recognize the flags. */
-	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
+	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
 		return -EOPNOTSUPP;
 
 	/* Don't go off the end of the device. */
@@ -649,11 +653,20 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	filemap_invalidate_lock(inode->i_mapping);
 
 	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
+	if (mode & BLKDEV_FALLOC_FL_TRUNCATE) {
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+	}
 
 	switch (mode) {
+	case 0:
+	case FALLOC_FL_UNSHARE_RANGE:
+	case FALLOC_FL_KEEP_SIZE:
+	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.0.634.g4ca3ef3211-goog

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Bart Van Assche]

On 4/18/23 15:12, Sarthak Kukreti wrote:
>   	/* Fail if we don't recognize the flags. */
> -	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> +	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
>   		return -EOPNOTSUPP;

Is this change necessary? Doesn't (mode & ~BLKDEV_FALLOC_FL_SUPPORTED) 
!= 0 imply that mode != 0?

Thanks,

Bart.

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Re: [PATCH v4 1/4] block: Introduce provisioning primitives

[Bart Van Assche]

On 4/18/23 15:12, Sarthak Kukreti wrote:
>   	/* Fail if we don't recognize the flags. */
> -	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> +	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
>   		return -EOPNOTSUPP;

Is this change necessary? Doesn't (mode & ~BLKDEV_FALLOC_FL_SUPPORTED) 
!= 0 imply that mode != 0?

Thanks,

Bart.

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Sarthak Kukreti]

Dropped in v5.

Thanks!
Sarthak

On Tue, Apr 18, 2023 at 3:43 PM Bart Van Assche <bvanassche@acm.org> wrote:
>
> On 4/18/23 15:12, Sarthak Kukreti wrote:
> >       /* Fail if we don't recognize the flags. */
> > -     if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> > +     if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> >               return -EOPNOTSUPP;
>
> Is this change necessary? Doesn't (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> != 0 imply that mode != 0?
>
> Thanks,
>
> Bart.
>

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Re: [PATCH v4 1/4] block: Introduce provisioning primitives

[Sarthak Kukreti]

Dropped in v5.

Thanks!
Sarthak

On Tue, Apr 18, 2023 at 3:43 PM Bart Van Assche <bvanassche@acm.org> wrote:
>
> On 4/18/23 15:12, Sarthak Kukreti wrote:
> >       /* Fail if we don't recognize the flags. */
> > -     if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> > +     if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> >               return -EOPNOTSUPP;
>
> Is this change necessary? Doesn't (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> != 0 imply that mode != 0?
>
> Thanks,
>
> Bart.
>

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Darrick J. Wong]

On Tue, Apr 18, 2023 at 03:12:04PM -0700, Sarthak Kukreti wrote:
> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/blk-core.c          |  5 ++++
>  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
>  block/blk-merge.c         | 18 +++++++++++++
>  block/blk-settings.c      | 19 ++++++++++++++
>  block/blk-sysfs.c         |  8 ++++++
>  block/bounce.c            |  1 +
>  block/fops.c              | 25 +++++++++++++-----
>  include/linux/bio.h       |  6 +++--
>  include/linux/blk_types.h |  5 +++-
>  include/linux/blkdev.h    | 16 ++++++++++++
>  10 files changed, 147 insertions(+), 9 deletions(-)
> 

<cut to the fallocate part; the block/ changes look fine to /me/ at
first glance, but what do I know... ;)>

> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..e1775269654a 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  	return ret;
>  }
>  
> +#define	BLKDEV_FALLOC_FL_TRUNCATE				\

At first I thought from this name that you were defining a new truncate
mode for fallocate, then I realized that this is mask for deciding if we
/want/ to truncate the pagecache.

#define		BLKDEV_FALLOC_TRUNCATE_MASK ?

> +		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\

Ok, so discarding and writing zeroes truncates the page cache, makes
sense since we're "writing" directly to the block device.

> +		 FALLOC_FL_NO_HIDE_STALE)

Here things get tricky -- some of the FALLOC_FL mode bits are really an
opcode and cannot be specified together, whereas others select optional
behavior for certain opcodes.

IIRC, the mutually exclusive opcodes are:

	PUNCH_HOLE
	ZERO_RANGE
	COLLAPSE_RANGE
	INSERT_RANGE
	(none of the above, for allocation)

and the "variants on a theme are":

	KEEP_SIZE
	NO_HIDE_STALE
	UNSHARE_RANGE

not all of which are supported by all the opcodes.

Does it make sense to truncate the page cache if userspace passes in
mode == NO_HIDE_STALE?  There's currently no defined meaning for this
combination, but I think this means we'll truncate the pagecache before
deciding if we're actually going to issue any commands.

I think that's just a bug in the existing code -- it should be
validating that @mode is any of the supported combinations *before*
truncating the pagecache.

Otherwise you could have a mkfs program that starts writing new fs
metadata, decides to provision the storage (say for a logging region),
doesn't realize it's running on an old kernel, and then oops the
provision attempt fails but have we now shredded the pagecache and lost
all the writes?

--D

> +
>  #define	BLKDEV_FALLOC_FL_SUPPORTED					\
> -		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
> -		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
> +		(BLKDEV_FALLOC_FL_TRUNCATE | FALLOC_FL_KEEP_SIZE |	\
> +		 FALLOC_FL_UNSHARE_RANGE)
>  
>  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  			     loff_t len)
> @@ -625,7 +629,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	int error;
>  
>  	/* Fail if we don't recognize the flags. */
> -	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> +	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
>  		return -EOPNOTSUPP;
>  
>  	/* Don't go off the end of the device. */
> @@ -649,11 +653,20 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	filemap_invalidate_lock(inode->i_mapping);
>  
>  	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> +	if (mode & BLKDEV_FALLOC_FL_TRUNCATE) {
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +	}
>  
>  	switch (mode) {
> +	case 0:
> +	case FALLOC_FL_UNSHARE_RANGE:
> +	case FALLOC_FL_KEEP_SIZE:
> +	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
> +		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> +					       len >> SECTOR_SHIFT, GFP_KERNEL);
> +		break;
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index d766be7152e1..9820b3b039f2 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
>  	    bio->bi_iter.bi_size &&
>  	    bio_op(bio) != REQ_OP_DISCARD &&
>  	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
> -	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
> +	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> +	    bio_op(bio) != REQ_OP_PROVISION)
>  		return true;
>  
>  	return false;
> @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
>  {
>  	return bio_op(bio) == REQ_OP_DISCARD ||
>  	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
> -	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
> +	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> +	       bio_op(bio) == REQ_OP_PROVISION;
>  }
>  
>  static inline void *bio_data(struct bio *bio)
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 99be590f952f..27bdf88f541c 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -385,7 +385,10 @@ enum req_op {
>  	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
>  	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
>  
> -	REQ_OP_LAST		= (__force blk_opf_t)36,
> +	/* request device to provision block */
> +	REQ_OP_PROVISION        = (__force blk_opf_t)37,
> +
> +	REQ_OP_LAST		= (__force blk_opf_t)38,
>  };
>  
>  enum req_flag_bits {
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 941304f17492..239e2f418b6e 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -303,6 +303,7 @@ struct queue_limits {
>  	unsigned int		discard_granularity;
>  	unsigned int		discard_alignment;
>  	unsigned int		zone_write_granularity;
> +	unsigned int		max_provision_sectors;
>  
>  	unsigned short		max_segments;
>  	unsigned short		max_integrity_segments;
> @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
>  		unsigned int max_discard_sectors);
>  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  		unsigned int max_write_same_sectors);
> +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors);
>  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
>  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
>  		unsigned int max_zone_append_sectors);
> @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
>  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  		sector_t nr_sects, gfp_t gfp);
>  
> +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp_mask);
> +
>  #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
>  #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
>  
> @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
>  	return q->limits.max_discard_segments;
>  }
>  
> +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> +{
> +	return q->limits.max_provision_sectors;
> +}
> +
>  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
>  {
>  	return q->limits.max_segment_size;
> @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
>  	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
>  }
>  
> +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> +{
> +	return bdev_get_queue(bdev)->limits.max_provision_sectors;
> +}
> +
>  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
>  {
>  	return blk_queue_zoned_model(bdev_get_queue(bdev));
> -- 
> 2.40.0.634.g4ca3ef3211-goog
> 
> --
> dm-devel mailing list
> dm-devel@redhat.com
> https://listman.redhat.com/mailman/listinfo/dm-devel
> 

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Darrick J. Wong]

On Tue, Apr 18, 2023 at 03:12:04PM -0700, Sarthak Kukreti wrote:
> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/blk-core.c          |  5 ++++
>  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
>  block/blk-merge.c         | 18 +++++++++++++
>  block/blk-settings.c      | 19 ++++++++++++++
>  block/blk-sysfs.c         |  8 ++++++
>  block/bounce.c            |  1 +
>  block/fops.c              | 25 +++++++++++++-----
>  include/linux/bio.h       |  6 +++--
>  include/linux/blk_types.h |  5 +++-
>  include/linux/blkdev.h    | 16 ++++++++++++
>  10 files changed, 147 insertions(+), 9 deletions(-)
> 

<cut to the fallocate part; the block/ changes look fine to /me/ at
first glance, but what do I know... ;)>

> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..e1775269654a 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  	return ret;
>  }
>  
> +#define	BLKDEV_FALLOC_FL_TRUNCATE				\

At first I thought from this name that you were defining a new truncate
mode for fallocate, then I realized that this is mask for deciding if we
/want/ to truncate the pagecache.

#define		BLKDEV_FALLOC_TRUNCATE_MASK ?

> +		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\

Ok, so discarding and writing zeroes truncates the page cache, makes
sense since we're "writing" directly to the block device.

> +		 FALLOC_FL_NO_HIDE_STALE)

Here things get tricky -- some of the FALLOC_FL mode bits are really an
opcode and cannot be specified together, whereas others select optional
behavior for certain opcodes.

IIRC, the mutually exclusive opcodes are:

	PUNCH_HOLE
	ZERO_RANGE
	COLLAPSE_RANGE
	INSERT_RANGE
	(none of the above, for allocation)

and the "variants on a theme are":

	KEEP_SIZE
	NO_HIDE_STALE
	UNSHARE_RANGE

not all of which are supported by all the opcodes.

Does it make sense to truncate the page cache if userspace passes in
mode == NO_HIDE_STALE?  There's currently no defined meaning for this
combination, but I think this means we'll truncate the pagecache before
deciding if we're actually going to issue any commands.

I think that's just a bug in the existing code -- it should be
validating that @mode is any of the supported combinations *before*
truncating the pagecache.

Otherwise you could have a mkfs program that starts writing new fs
metadata, decides to provision the storage (say for a logging region),
doesn't realize it's running on an old kernel, and then oops the
provision attempt fails but have we now shredded the pagecache and lost
all the writes?

--D

> +
>  #define	BLKDEV_FALLOC_FL_SUPPORTED					\
> -		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
> -		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
> +		(BLKDEV_FALLOC_FL_TRUNCATE | FALLOC_FL_KEEP_SIZE |	\
> +		 FALLOC_FL_UNSHARE_RANGE)
>  
>  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  			     loff_t len)
> @@ -625,7 +629,7 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	int error;
>  
>  	/* Fail if we don't recognize the flags. */
> -	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
> +	if (mode != 0 && mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
>  		return -EOPNOTSUPP;
>  
>  	/* Don't go off the end of the device. */
> @@ -649,11 +653,20 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	filemap_invalidate_lock(inode->i_mapping);
>  
>  	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> +	if (mode & BLKDEV_FALLOC_FL_TRUNCATE) {
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +	}
>  
>  	switch (mode) {
> +	case 0:
> +	case FALLOC_FL_UNSHARE_RANGE:
> +	case FALLOC_FL_KEEP_SIZE:
> +	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
> +		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> +					       len >> SECTOR_SHIFT, GFP_KERNEL);
> +		break;
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index d766be7152e1..9820b3b039f2 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
>  	    bio->bi_iter.bi_size &&
>  	    bio_op(bio) != REQ_OP_DISCARD &&
>  	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
> -	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
> +	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> +	    bio_op(bio) != REQ_OP_PROVISION)
>  		return true;
>  
>  	return false;
> @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
>  {
>  	return bio_op(bio) == REQ_OP_DISCARD ||
>  	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
> -	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
> +	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> +	       bio_op(bio) == REQ_OP_PROVISION;
>  }
>  
>  static inline void *bio_data(struct bio *bio)
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 99be590f952f..27bdf88f541c 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -385,7 +385,10 @@ enum req_op {
>  	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
>  	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
>  
> -	REQ_OP_LAST		= (__force blk_opf_t)36,
> +	/* request device to provision block */
> +	REQ_OP_PROVISION        = (__force blk_opf_t)37,
> +
> +	REQ_OP_LAST		= (__force blk_opf_t)38,
>  };
>  
>  enum req_flag_bits {
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 941304f17492..239e2f418b6e 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -303,6 +303,7 @@ struct queue_limits {
>  	unsigned int		discard_granularity;
>  	unsigned int		discard_alignment;
>  	unsigned int		zone_write_granularity;
> +	unsigned int		max_provision_sectors;
>  
>  	unsigned short		max_segments;
>  	unsigned short		max_integrity_segments;
> @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
>  		unsigned int max_discard_sectors);
>  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  		unsigned int max_write_same_sectors);
> +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors);
>  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
>  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
>  		unsigned int max_zone_append_sectors);
> @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
>  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  		sector_t nr_sects, gfp_t gfp);
>  
> +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp_mask);
> +
>  #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
>  #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
>  
> @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
>  	return q->limits.max_discard_segments;
>  }
>  
> +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> +{
> +	return q->limits.max_provision_sectors;
> +}
> +
>  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
>  {
>  	return q->limits.max_segment_size;
> @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
>  	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
>  }
>  
> +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> +{
> +	return bdev_get_queue(bdev)->limits.max_provision_sectors;
> +}
> +
>  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
>  {
>  	return blk_queue_zoned_model(bdev_get_queue(bdev));
> -- 
> 2.40.0.634.g4ca3ef3211-goog
> 
> --
> dm-devel mailing list
> dm-devel@redhat.com
> https://listman.redhat.com/mailman/listinfo/dm-devel
> 

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Mike Snitzer]

On Wed, Apr 19 2023 at 11:36P -0400,
Darrick J. Wong <djwong@kernel.org> wrote:

> On Tue, Apr 18, 2023 at 03:12:04PM -0700, Sarthak Kukreti wrote:
> > Introduce block request REQ_OP_PROVISION. The intent of this request
> > is to request underlying storage to preallocate disk space for the given
> > block range. Block devices that support this capability will export
> > a provision limit within their request queues.
> > 
> > This patch also adds the capability to call fallocate() in mode 0
> > on block devices, which will send REQ_OP_PROVISION to the block
> > device for the specified range,
> > 
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/blk-core.c          |  5 ++++
> >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> >  block/blk-merge.c         | 18 +++++++++++++
> >  block/blk-settings.c      | 19 ++++++++++++++
> >  block/blk-sysfs.c         |  8 ++++++
> >  block/bounce.c            |  1 +
> >  block/fops.c              | 25 +++++++++++++-----
> >  include/linux/bio.h       |  6 +++--
> >  include/linux/blk_types.h |  5 +++-
> >  include/linux/blkdev.h    | 16 ++++++++++++
> >  10 files changed, 147 insertions(+), 9 deletions(-)
> > 
> 
> <cut to the fallocate part; the block/ changes look fine to /me/ at
> first glance, but what do I know... ;)>
> 
> > diff --git a/block/fops.c b/block/fops.c
> > index d2e6be4e3d1c..e1775269654a 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
> >  	return ret;
> >  }
> >  
> > +#define	BLKDEV_FALLOC_FL_TRUNCATE				\
> 
> At first I thought from this name that you were defining a new truncate
> mode for fallocate, then I realized that this is mask for deciding if we
> /want/ to truncate the pagecache.
> 
> #define		BLKDEV_FALLOC_TRUNCATE_MASK ?
> 
> > +		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\
> 
> Ok, so discarding and writing zeroes truncates the page cache, makes
> sense since we're "writing" directly to the block device.
> 
> > +		 FALLOC_FL_NO_HIDE_STALE)
> 
> Here things get tricky -- some of the FALLOC_FL mode bits are really an
> opcode and cannot be specified together, whereas others select optional
> behavior for certain opcodes.
> 
> IIRC, the mutually exclusive opcodes are:
> 
> 	PUNCH_HOLE
> 	ZERO_RANGE
> 	COLLAPSE_RANGE
> 	INSERT_RANGE
> 	(none of the above, for allocation)
> 
> and the "variants on a theme are":
> 
> 	KEEP_SIZE
> 	NO_HIDE_STALE
> 	UNSHARE_RANGE
> 
> not all of which are supported by all the opcodes.
> 
> Does it make sense to truncate the page cache if userspace passes in
> mode == NO_HIDE_STALE?  There's currently no defined meaning for this
> combination, but I think this means we'll truncate the pagecache before
> deciding if we're actually going to issue any commands.
> 
> I think that's just a bug in the existing code -- it should be
> validating that @mode is any of the supported combinations *before*
> truncating the pagecache.
> 
> Otherwise you could have a mkfs program that starts writing new fs
> metadata, decides to provision the storage (say for a logging region),
> doesn't realize it's running on an old kernel, and then oops the
> provision attempt fails but have we now shredded the pagecache and lost
> all the writes?

While that just caused me to have an "oh shit, that's crazy" (in a
scary way) belly laugh...
(And obviously needs fixing independent of this patchset)

Shouldn't mkfs first check that the underlying storage supports
REQ_OP_PROVISION by verifying
/sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
(Just saying, we need to add new features more defensively.. you just
made the case based on this scenario's implications alone)

Sarthak, please note I said "provision_max_bytes": all other ops
(e.g. DISCARD, WRITE_ZEROES, etc) have <op>_max_bytes exported through
sysfs, not <op>_max_sectors.  Please export provision_max_bytes, e.g.:

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 202aa78f933e..2e5ac7b1ffbd 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -605,12 +605,12 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
 QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
 
 QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
-QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
 QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
 QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
 QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
 
+QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
 QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
 QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
 QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");

--
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Re: [PATCH v4 1/4] block: Introduce provisioning primitives

[Mike Snitzer]

On Wed, Apr 19 2023 at 11:36P -0400,
Darrick J. Wong <djwong@kernel.org> wrote:

> On Tue, Apr 18, 2023 at 03:12:04PM -0700, Sarthak Kukreti wrote:
> > Introduce block request REQ_OP_PROVISION. The intent of this request
> > is to request underlying storage to preallocate disk space for the given
> > block range. Block devices that support this capability will export
> > a provision limit within their request queues.
> > 
> > This patch also adds the capability to call fallocate() in mode 0
> > on block devices, which will send REQ_OP_PROVISION to the block
> > device for the specified range,
> > 
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/blk-core.c          |  5 ++++
> >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> >  block/blk-merge.c         | 18 +++++++++++++
> >  block/blk-settings.c      | 19 ++++++++++++++
> >  block/blk-sysfs.c         |  8 ++++++
> >  block/bounce.c            |  1 +
> >  block/fops.c              | 25 +++++++++++++-----
> >  include/linux/bio.h       |  6 +++--
> >  include/linux/blk_types.h |  5 +++-
> >  include/linux/blkdev.h    | 16 ++++++++++++
> >  10 files changed, 147 insertions(+), 9 deletions(-)
> > 
> 
> <cut to the fallocate part; the block/ changes look fine to /me/ at
> first glance, but what do I know... ;)>
> 
> > diff --git a/block/fops.c b/block/fops.c
> > index d2e6be4e3d1c..e1775269654a 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
> >  	return ret;
> >  }
> >  
> > +#define	BLKDEV_FALLOC_FL_TRUNCATE				\
> 
> At first I thought from this name that you were defining a new truncate
> mode for fallocate, then I realized that this is mask for deciding if we
> /want/ to truncate the pagecache.
> 
> #define		BLKDEV_FALLOC_TRUNCATE_MASK ?
> 
> > +		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\
> 
> Ok, so discarding and writing zeroes truncates the page cache, makes
> sense since we're "writing" directly to the block device.
> 
> > +		 FALLOC_FL_NO_HIDE_STALE)
> 
> Here things get tricky -- some of the FALLOC_FL mode bits are really an
> opcode and cannot be specified together, whereas others select optional
> behavior for certain opcodes.
> 
> IIRC, the mutually exclusive opcodes are:
> 
> 	PUNCH_HOLE
> 	ZERO_RANGE
> 	COLLAPSE_RANGE
> 	INSERT_RANGE
> 	(none of the above, for allocation)
> 
> and the "variants on a theme are":
> 
> 	KEEP_SIZE
> 	NO_HIDE_STALE
> 	UNSHARE_RANGE
> 
> not all of which are supported by all the opcodes.
> 
> Does it make sense to truncate the page cache if userspace passes in
> mode == NO_HIDE_STALE?  There's currently no defined meaning for this
> combination, but I think this means we'll truncate the pagecache before
> deciding if we're actually going to issue any commands.
> 
> I think that's just a bug in the existing code -- it should be
> validating that @mode is any of the supported combinations *before*
> truncating the pagecache.
> 
> Otherwise you could have a mkfs program that starts writing new fs
> metadata, decides to provision the storage (say for a logging region),
> doesn't realize it's running on an old kernel, and then oops the
> provision attempt fails but have we now shredded the pagecache and lost
> all the writes?

While that just caused me to have an "oh shit, that's crazy" (in a
scary way) belly laugh...
(And obviously needs fixing independent of this patchset)

Shouldn't mkfs first check that the underlying storage supports
REQ_OP_PROVISION by verifying
/sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
(Just saying, we need to add new features more defensively.. you just
made the case based on this scenario's implications alone)

Sarthak, please note I said "provision_max_bytes": all other ops
(e.g. DISCARD, WRITE_ZEROES, etc) have <op>_max_bytes exported through
sysfs, not <op>_max_sectors.  Please export provision_max_bytes, e.g.:

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 202aa78f933e..2e5ac7b1ffbd 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -605,12 +605,12 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
 QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
 
 QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
-QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
 QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
 QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
 QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
 
+QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
 QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
 QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
 QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Darrick J. Wong]

On Wed, Apr 19, 2023 at 12:17:34PM -0400, Mike Snitzer wrote:
> On Wed, Apr 19 2023 at 11:36P -0400,
> Darrick J. Wong <djwong@kernel.org> wrote:
> 
> > On Tue, Apr 18, 2023 at 03:12:04PM -0700, Sarthak Kukreti wrote:
> > > Introduce block request REQ_OP_PROVISION. The intent of this request
> > > is to request underlying storage to preallocate disk space for the given
> > > block range. Block devices that support this capability will export
> > > a provision limit within their request queues.
> > > 
> > > This patch also adds the capability to call fallocate() in mode 0
> > > on block devices, which will send REQ_OP_PROVISION to the block
> > > device for the specified range,
> > > 
> > > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > > ---
> > >  block/blk-core.c          |  5 ++++
> > >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> > >  block/blk-merge.c         | 18 +++++++++++++
> > >  block/blk-settings.c      | 19 ++++++++++++++
> > >  block/blk-sysfs.c         |  8 ++++++
> > >  block/bounce.c            |  1 +
> > >  block/fops.c              | 25 +++++++++++++-----
> > >  include/linux/bio.h       |  6 +++--
> > >  include/linux/blk_types.h |  5 +++-
> > >  include/linux/blkdev.h    | 16 ++++++++++++
> > >  10 files changed, 147 insertions(+), 9 deletions(-)
> > > 
> > 
> > <cut to the fallocate part; the block/ changes look fine to /me/ at
> > first glance, but what do I know... ;)>
> > 
> > > diff --git a/block/fops.c b/block/fops.c
> > > index d2e6be4e3d1c..e1775269654a 100644
> > > --- a/block/fops.c
> > > +++ b/block/fops.c
> > > @@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
> > >  	return ret;
> > >  }
> > >  
> > > +#define	BLKDEV_FALLOC_FL_TRUNCATE				\
> > 
> > At first I thought from this name that you were defining a new truncate
> > mode for fallocate, then I realized that this is mask for deciding if we
> > /want/ to truncate the pagecache.
> > 
> > #define		BLKDEV_FALLOC_TRUNCATE_MASK ?
> > 
> > > +		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\
> > 
> > Ok, so discarding and writing zeroes truncates the page cache, makes
> > sense since we're "writing" directly to the block device.
> > 
> > > +		 FALLOC_FL_NO_HIDE_STALE)
> > 
> > Here things get tricky -- some of the FALLOC_FL mode bits are really an
> > opcode and cannot be specified together, whereas others select optional
> > behavior for certain opcodes.
> > 
> > IIRC, the mutually exclusive opcodes are:
> > 
> > 	PUNCH_HOLE
> > 	ZERO_RANGE
> > 	COLLAPSE_RANGE
> > 	INSERT_RANGE
> > 	(none of the above, for allocation)
> > 
> > and the "variants on a theme are":
> > 
> > 	KEEP_SIZE
> > 	NO_HIDE_STALE
> > 	UNSHARE_RANGE
> > 
> > not all of which are supported by all the opcodes.
> > 
> > Does it make sense to truncate the page cache if userspace passes in
> > mode == NO_HIDE_STALE?  There's currently no defined meaning for this
> > combination, but I think this means we'll truncate the pagecache before
> > deciding if we're actually going to issue any commands.
> > 
> > I think that's just a bug in the existing code -- it should be
> > validating that @mode is any of the supported combinations *before*
> > truncating the pagecache.
> > 
> > Otherwise you could have a mkfs program that starts writing new fs
> > metadata, decides to provision the storage (say for a logging region),
> > doesn't realize it's running on an old kernel, and then oops the
> > provision attempt fails but have we now shredded the pagecache and lost
> > all the writes?
> 
> While that just caused me to have an "oh shit, that's crazy" (in a
> scary way) belly laugh...

I just tried this and:

# xfs_io -c 'pwrite -S 0x58 1m 1m' -c fsync -c 'pwrite -S 0x59 1m 4096' -c 'pread -v 1m 64' -c 'falloc 1m 4096' -c 'pread -v 1m 64' /dev/sda
wrote 1048576/1048576 bytes at offset 1048576
1 MiB, 256 ops; 0.0013 sec (723.589 MiB/sec and 185238.7844 ops/sec)
wrote 4096/4096 bytes at offset 1048576
4 KiB, 1 ops; 0.0000 sec (355.114 MiB/sec and 90909.0909 ops/sec)
00100000:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
00100010:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
00100020:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
00100030:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
read 64/64 bytes at offset 1048576
64.000000 bytes, 1 ops; 0.0000 sec (1.565 MiB/sec and 25641.0256 ops/sec)
fallocate: Operation not supported
00100000:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
00100010:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
00100020:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
00100030:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
read 64/64 bytes at offset 1048576
64.000000 bytes, 1 ops; 0.0003 sec (176.554 KiB/sec and 2824.8588 ops/sec)

(Write 1MB of Xs, flush it to disk, write 4k of Ys, confirm the Y's are
in the page cache, fail to fallocate, reread and spot the Xs that we
supposedly overwrote.)

oops.

> (And obviously needs fixing independent of this patchset)
> 
> Shouldn't mkfs first check that the underlying storage supports
> REQ_OP_PROVISION by verifying
> /sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
> (Just saying, we need to add new features more defensively.. you just
> made the case based on this scenario's implications alone)

Not for fallocate -- for regular files, there's no way to check if the
filesystem actually supports the operation requested other than to try
it and see if it succeeds.  We probably should've defined a DRY_RUN flag
for that purpose back when it was introduced.

For fallocate calls to block devices, yes, the program can check the
queue limits in sysfs if fstat says the supplied path is a block device,
but I don't know that most programs are that thorough.  The fallocate(1)
CLI program does not check.

Then I moved on to fs utilities:

ext4: For discard, mke2fs calls BLKDISCARD if it detects a block device
via fstat, and falloc(PUNCH|KEEP_SIZE) for anything else.  For zeroing,
it only uses falloc(ZERO) or falloc(PUNCH|KEEP_SIZE) and does not try to
use BLKZEROOUT.  It does not check sysfs queue limits at all.

XFS: mkfs.xfs issues BLKDISCARD before writing anything to the device,
so that's fine.  It uses falloc(ZERO) to erase the log, but since
xfsprogs provides its own buffer cache and uses O_DIRECT, pagecache
coherency problems aren't an issue.

btrfs: mkfs.btrfs only issues BLKDISCARD, and only before it starts
writing the new fs, so no problems there.

--D

> Sarthak, please note I said "provision_max_bytes": all other ops
> (e.g. DISCARD, WRITE_ZEROES, etc) have <op>_max_bytes exported through
> sysfs, not <op>_max_sectors.  Please export provision_max_bytes, e.g.:
> 
> diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
> index 202aa78f933e..2e5ac7b1ffbd 100644
> --- a/block/blk-sysfs.c
> +++ b/block/blk-sysfs.c
> @@ -605,12 +605,12 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
>  QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
>  
>  QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
> -QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
>  QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
>  QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
>  QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
>  QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
>  
> +QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
>  QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");

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Re: [PATCH v4 1/4] block: Introduce provisioning primitives

[Darrick J. Wong]

On Wed, Apr 19, 2023 at 12:17:34PM -0400, Mike Snitzer wrote:
> On Wed, Apr 19 2023 at 11:36P -0400,
> Darrick J. Wong <djwong@kernel.org> wrote:
> 
> > On Tue, Apr 18, 2023 at 03:12:04PM -0700, Sarthak Kukreti wrote:
> > > Introduce block request REQ_OP_PROVISION. The intent of this request
> > > is to request underlying storage to preallocate disk space for the given
> > > block range. Block devices that support this capability will export
> > > a provision limit within their request queues.
> > > 
> > > This patch also adds the capability to call fallocate() in mode 0
> > > on block devices, which will send REQ_OP_PROVISION to the block
> > > device for the specified range,
> > > 
> > > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > > ---
> > >  block/blk-core.c          |  5 ++++
> > >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> > >  block/blk-merge.c         | 18 +++++++++++++
> > >  block/blk-settings.c      | 19 ++++++++++++++
> > >  block/blk-sysfs.c         |  8 ++++++
> > >  block/bounce.c            |  1 +
> > >  block/fops.c              | 25 +++++++++++++-----
> > >  include/linux/bio.h       |  6 +++--
> > >  include/linux/blk_types.h |  5 +++-
> > >  include/linux/blkdev.h    | 16 ++++++++++++
> > >  10 files changed, 147 insertions(+), 9 deletions(-)
> > > 
> > 
> > <cut to the fallocate part; the block/ changes look fine to /me/ at
> > first glance, but what do I know... ;)>
> > 
> > > diff --git a/block/fops.c b/block/fops.c
> > > index d2e6be4e3d1c..e1775269654a 100644
> > > --- a/block/fops.c
> > > +++ b/block/fops.c
> > > @@ -611,9 +611,13 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
> > >  	return ret;
> > >  }
> > >  
> > > +#define	BLKDEV_FALLOC_FL_TRUNCATE				\
> > 
> > At first I thought from this name that you were defining a new truncate
> > mode for fallocate, then I realized that this is mask for deciding if we
> > /want/ to truncate the pagecache.
> > 
> > #define		BLKDEV_FALLOC_TRUNCATE_MASK ?
> > 
> > > +		(FALLOC_FL_PUNCH_HOLE |	FALLOC_FL_ZERO_RANGE |	\
> > 
> > Ok, so discarding and writing zeroes truncates the page cache, makes
> > sense since we're "writing" directly to the block device.
> > 
> > > +		 FALLOC_FL_NO_HIDE_STALE)
> > 
> > Here things get tricky -- some of the FALLOC_FL mode bits are really an
> > opcode and cannot be specified together, whereas others select optional
> > behavior for certain opcodes.
> > 
> > IIRC, the mutually exclusive opcodes are:
> > 
> > 	PUNCH_HOLE
> > 	ZERO_RANGE
> > 	COLLAPSE_RANGE
> > 	INSERT_RANGE
> > 	(none of the above, for allocation)
> > 
> > and the "variants on a theme are":
> > 
> > 	KEEP_SIZE
> > 	NO_HIDE_STALE
> > 	UNSHARE_RANGE
> > 
> > not all of which are supported by all the opcodes.
> > 
> > Does it make sense to truncate the page cache if userspace passes in
> > mode == NO_HIDE_STALE?  There's currently no defined meaning for this
> > combination, but I think this means we'll truncate the pagecache before
> > deciding if we're actually going to issue any commands.
> > 
> > I think that's just a bug in the existing code -- it should be
> > validating that @mode is any of the supported combinations *before*
> > truncating the pagecache.
> > 
> > Otherwise you could have a mkfs program that starts writing new fs
> > metadata, decides to provision the storage (say for a logging region),
> > doesn't realize it's running on an old kernel, and then oops the
> > provision attempt fails but have we now shredded the pagecache and lost
> > all the writes?
> 
> While that just caused me to have an "oh shit, that's crazy" (in a
> scary way) belly laugh...

I just tried this and:

# xfs_io -c 'pwrite -S 0x58 1m 1m' -c fsync -c 'pwrite -S 0x59 1m 4096' -c 'pread -v 1m 64' -c 'falloc 1m 4096' -c 'pread -v 1m 64' /dev/sda
wrote 1048576/1048576 bytes at offset 1048576
1 MiB, 256 ops; 0.0013 sec (723.589 MiB/sec and 185238.7844 ops/sec)
wrote 4096/4096 bytes at offset 1048576
4 KiB, 1 ops; 0.0000 sec (355.114 MiB/sec and 90909.0909 ops/sec)
00100000:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
00100010:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
00100020:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
00100030:  59 59 59 59 59 59 59 59 59 59 59 59 59 59 59 59  YYYYYYYYYYYYYYYY
read 64/64 bytes at offset 1048576
64.000000 bytes, 1 ops; 0.0000 sec (1.565 MiB/sec and 25641.0256 ops/sec)
fallocate: Operation not supported
00100000:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
00100010:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
00100020:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
00100030:  58 58 58 58 58 58 58 58 58 58 58 58 58 58 58 58  XXXXXXXXXXXXXXXX
read 64/64 bytes at offset 1048576
64.000000 bytes, 1 ops; 0.0003 sec (176.554 KiB/sec and 2824.8588 ops/sec)

(Write 1MB of Xs, flush it to disk, write 4k of Ys, confirm the Y's are
in the page cache, fail to fallocate, reread and spot the Xs that we
supposedly overwrote.)

oops.

> (And obviously needs fixing independent of this patchset)
> 
> Shouldn't mkfs first check that the underlying storage supports
> REQ_OP_PROVISION by verifying
> /sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
> (Just saying, we need to add new features more defensively.. you just
> made the case based on this scenario's implications alone)

Not for fallocate -- for regular files, there's no way to check if the
filesystem actually supports the operation requested other than to try
it and see if it succeeds.  We probably should've defined a DRY_RUN flag
for that purpose back when it was introduced.

For fallocate calls to block devices, yes, the program can check the
queue limits in sysfs if fstat says the supplied path is a block device,
but I don't know that most programs are that thorough.  The fallocate(1)
CLI program does not check.

Then I moved on to fs utilities:

ext4: For discard, mke2fs calls BLKDISCARD if it detects a block device
via fstat, and falloc(PUNCH|KEEP_SIZE) for anything else.  For zeroing,
it only uses falloc(ZERO) or falloc(PUNCH|KEEP_SIZE) and does not try to
use BLKZEROOUT.  It does not check sysfs queue limits at all.

XFS: mkfs.xfs issues BLKDISCARD before writing anything to the device,
so that's fine.  It uses falloc(ZERO) to erase the log, but since
xfsprogs provides its own buffer cache and uses O_DIRECT, pagecache
coherency problems aren't an issue.

btrfs: mkfs.btrfs only issues BLKDISCARD, and only before it starts
writing the new fs, so no problems there.

--D

> Sarthak, please note I said "provision_max_bytes": all other ops
> (e.g. DISCARD, WRITE_ZEROES, etc) have <op>_max_bytes exported through
> sysfs, not <op>_max_sectors.  Please export provision_max_bytes, e.g.:
> 
> diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
> index 202aa78f933e..2e5ac7b1ffbd 100644
> --- a/block/blk-sysfs.c
> +++ b/block/blk-sysfs.c
> @@ -605,12 +605,12 @@ QUEUE_RO_ENTRY(queue_io_min, "minimum_io_size");
>  QUEUE_RO_ENTRY(queue_io_opt, "optimal_io_size");
>  
>  QUEUE_RO_ENTRY(queue_max_discard_segments, "max_discard_segments");
> -QUEUE_RO_ENTRY(queue_max_provision_sectors, "max_provision_sectors");
>  QUEUE_RO_ENTRY(queue_discard_granularity, "discard_granularity");
>  QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
>  QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
>  QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
>  
> +QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
>  QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Dave Chinner]

On Wed, Apr 19, 2023 at 10:26:02AM -0700, Darrick J. Wong wrote:
> On Wed, Apr 19, 2023 at 12:17:34PM -0400, Mike Snitzer wrote:
> > (And obviously needs fixing independent of this patchset)
> > 
> > Shouldn't mkfs first check that the underlying storage supports
> > REQ_OP_PROVISION by verifying
> > /sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
> > (Just saying, we need to add new features more defensively.. you just
> > made the case based on this scenario's implications alone)
> 
> Not for fallocate -- for regular files, there's no way to check if the
> filesystem actually supports the operation requested other than to try
> it and see if it succeeds.  We probably should've defined a DRY_RUN flag
> for that purpose back when it was introduced.

That ignores the fact that fallocate() was never intended to
guarantee it will work in all contexts - it's an advisory interface
at it's most basic level. If the call succeeds, then great, it does
what is says on the box, but if it fails then it should have no
visible effect on user data at all and the application still needs
to perform whatever modification it needed done in some other way.

IOWs, calling it one a block device without first checking if the
block device supports that fallocate operation is exactly how it is
supposed to be used. If the kernel can't handle this gracefully
without corrupting data, then that's a kernel bug and not an
application problem.

> For fallocate calls to block devices, yes, the program can check the
> queue limits in sysfs if fstat says the supplied path is a block device,
> but I don't know that most programs are that thorough.  The fallocate(1)
> CLI program does not check.

Right. fallocate() was intended to just do the right thing without
the application having to jump thrown an unknown number of hoops to
determine if fallocate() can be used or not in the context it is
executing in.  The kernel implementation is supposed to abstract all that
context-dependent behaviour away from the application; all the
application has to do is implement the fallocate() fast path and a
single generic "do the right thing the slow way" fallback when the
fallocate() method it called is not supported...

-Dave.
-- 
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david@fromorbit.com

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Re: [PATCH v4 1/4] block: Introduce provisioning primitives

[Dave Chinner]

On Wed, Apr 19, 2023 at 10:26:02AM -0700, Darrick J. Wong wrote:
> On Wed, Apr 19, 2023 at 12:17:34PM -0400, Mike Snitzer wrote:
> > (And obviously needs fixing independent of this patchset)
> > 
> > Shouldn't mkfs first check that the underlying storage supports
> > REQ_OP_PROVISION by verifying
> > /sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
> > (Just saying, we need to add new features more defensively.. you just
> > made the case based on this scenario's implications alone)
> 
> Not for fallocate -- for regular files, there's no way to check if the
> filesystem actually supports the operation requested other than to try
> it and see if it succeeds.  We probably should've defined a DRY_RUN flag
> for that purpose back when it was introduced.

That ignores the fact that fallocate() was never intended to
guarantee it will work in all contexts - it's an advisory interface
at it's most basic level. If the call succeeds, then great, it does
what is says on the box, but if it fails then it should have no
visible effect on user data at all and the application still needs
to perform whatever modification it needed done in some other way.

IOWs, calling it one a block device without first checking if the
block device supports that fallocate operation is exactly how it is
supposed to be used. If the kernel can't handle this gracefully
without corrupting data, then that's a kernel bug and not an
application problem.

> For fallocate calls to block devices, yes, the program can check the
> queue limits in sysfs if fstat says the supplied path is a block device,
> but I don't know that most programs are that thorough.  The fallocate(1)
> CLI program does not check.

Right. fallocate() was intended to just do the right thing without
the application having to jump thrown an unknown number of hoops to
determine if fallocate() can be used or not in the context it is
executing in.  The kernel implementation is supposed to abstract all that
context-dependent behaviour away from the application; all the
application has to do is implement the fallocate() fast path and a
single generic "do the right thing the slow way" fallback when the
fallocate() method it called is not supported...

-Dave.
-- 
Dave Chinner
david@fromorbit.com

Re: [dm-devel] [PATCH v4 1/4] block: Introduce provisioning primitives

[Sarthak Kukreti]

On Wed, Apr 19, 2023 at 4:21 PM Dave Chinner <david@fromorbit.com> wrote:
>
> On Wed, Apr 19, 2023 at 10:26:02AM -0700, Darrick J. Wong wrote:
> > On Wed, Apr 19, 2023 at 12:17:34PM -0400, Mike Snitzer wrote:
> > > (And obviously needs fixing independent of this patchset)
> > >
> > > Shouldn't mkfs first check that the underlying storage supports
> > > REQ_OP_PROVISION by verifying
> > > /sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
> > > (Just saying, we need to add new features more defensively.. you just
> > > made the case based on this scenario's implications alone)
> >
> > Not for fallocate -- for regular files, there's no way to check if the
> > filesystem actually supports the operation requested other than to try
> > it and see if it succeeds.  We probably should've defined a DRY_RUN flag
> > for that purpose back when it was introduced.
>
> That ignores the fact that fallocate() was never intended to
> guarantee it will work in all contexts - it's an advisory interface
> at it's most basic level. If the call succeeds, then great, it does
> what is says on the box, but if it fails then it should have no
> visible effect on user data at all and the application still needs
> to perform whatever modification it needed done in some other way.
>
> IOWs, calling it one a block device without first checking if the
> block device supports that fallocate operation is exactly how it is
> supposed to be used. If the kernel can't handle this gracefully
> without corrupting data, then that's a kernel bug and not an
> application problem.
>
> > For fallocate calls to block devices, yes, the program can check the
> > queue limits in sysfs if fstat says the supplied path is a block device,
> > but I don't know that most programs are that thorough.  The fallocate(1)
> > CLI program does not check.
>
> Right. fallocate() was intended to just do the right thing without
> the application having to jump thrown an unknown number of hoops to
> determine if fallocate() can be used or not in the context it is
> executing in.  The kernel implementation is supposed to abstract all that
> context-dependent behaviour away from the application; all the
> application has to do is implement the fallocate() fast path and a
> single generic "do the right thing the slow way" fallback when the
> fallocate() method it called is not supported...
>
I added a separate commit[1] to fix this so that we only
truncate_bdev_range() iff we are in a supported de-allocate mode call.
Subsequently, the REQ_OP_PROVISION patch is a bit simpler when rebased
on top.

[1] https://www.spinics.net/lists/kernel/msg4765688.html

Best
Sarthak

> -Dave.
> --
> Dave Chinner
> david@fromorbit.com

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Re: [PATCH v4 1/4] block: Introduce provisioning primitives

[Sarthak Kukreti]

On Wed, Apr 19, 2023 at 4:21 PM Dave Chinner <david@fromorbit.com> wrote:
>
> On Wed, Apr 19, 2023 at 10:26:02AM -0700, Darrick J. Wong wrote:
> > On Wed, Apr 19, 2023 at 12:17:34PM -0400, Mike Snitzer wrote:
> > > (And obviously needs fixing independent of this patchset)
> > >
> > > Shouldn't mkfs first check that the underlying storage supports
> > > REQ_OP_PROVISION by verifying
> > > /sys/block/<dev>/queue/provision_max_bytes exists and is not 0?
> > > (Just saying, we need to add new features more defensively.. you just
> > > made the case based on this scenario's implications alone)
> >
> > Not for fallocate -- for regular files, there's no way to check if the
> > filesystem actually supports the operation requested other than to try
> > it and see if it succeeds.  We probably should've defined a DRY_RUN flag
> > for that purpose back when it was introduced.
>
> That ignores the fact that fallocate() was never intended to
> guarantee it will work in all contexts - it's an advisory interface
> at it's most basic level. If the call succeeds, then great, it does
> what is says on the box, but if it fails then it should have no
> visible effect on user data at all and the application still needs
> to perform whatever modification it needed done in some other way.
>
> IOWs, calling it one a block device without first checking if the
> block device supports that fallocate operation is exactly how it is
> supposed to be used. If the kernel can't handle this gracefully
> without corrupting data, then that's a kernel bug and not an
> application problem.
>
> > For fallocate calls to block devices, yes, the program can check the
> > queue limits in sysfs if fstat says the supplied path is a block device,
> > but I don't know that most programs are that thorough.  The fallocate(1)
> > CLI program does not check.
>
> Right. fallocate() was intended to just do the right thing without
> the application having to jump thrown an unknown number of hoops to
> determine if fallocate() can be used or not in the context it is
> executing in.  The kernel implementation is supposed to abstract all that
> context-dependent behaviour away from the application; all the
> application has to do is implement the fallocate() fast path and a
> single generic "do the right thing the slow way" fallback when the
> fallocate() method it called is not supported...
>
I added a separate commit[1] to fix this so that we only
truncate_bdev_range() iff we are in a supported de-allocate mode call.
Subsequently, the REQ_OP_PROVISION patch is a bit simpler when rebased
on top.

[1] https://www.spinics.net/lists/kernel/msg4765688.html

Best
Sarthak

> -Dave.
> --
> Dave Chinner
> david@fromorbit.com

[dm-devel] [PATCH v4 2/4] dm: Add block provisioning support

[Sarthak Kukreti]

Add block provisioning support for device-mapper targets.
dm-crypt, dm-snap and dm-linear will, by default, passthrough
REQ_OP_PROVISION requests to the underlying device, if
supported.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |  5 ++++-
 drivers/md/dm-linear.c        |  2 ++
 drivers/md/dm-snap.c          |  8 ++++++++
 drivers/md/dm-table.c         | 23 +++++++++++++++++++++++
 drivers/md/dm.c               |  6 ++++++
 include/linux/device-mapper.h | 17 +++++++++++++++++
 6 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8b47b913ee83..aa8072d6d7bf 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3336,6 +3336,9 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		cc->tag_pool_max_sectors <<= cc->sector_shift;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	ret = -ENOMEM;
 	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
@@ -3390,7 +3393,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index f4448d520ee9..66e50f5b0665 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,8 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9c49f53760d0..07927bb1e711 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,8 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2005,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2420,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 119db5e01080..9301f050529f 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1854,6 +1854,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return !bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1987,6 +2007,9 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (!dm_table_supports_provision(t))
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3b694ba3a106..9b94121b8d38 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1609,6 +1609,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1641,6 +1642,11 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 		if (ti->max_write_zeroes_granularity)
 			max_granularity = limits->max_write_zeroes_sectors;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		if (ti->max_provision_granularity)
+			max_granularity = limits->max_provision_sectors;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a52d2b9a6846..9981378457d2 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if this target requires that discards be split on
 	 * 'max_discard_sectors' boundaries.
@@ -376,6 +387,12 @@ struct dm_target {
 	 */
 	bool max_write_zeroes_granularity:1;
 
+	/*
+	 * Set if this target requires that provisions be split on
+	 * 'max_provision_sectors' boundaries.
+	 */
+	bool max_provision_granularity:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.0.634.g4ca3ef3211-goog

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[PATCH v4 2/4] dm: Add block provisioning support

[Sarthak Kukreti]

Add block provisioning support for device-mapper targets.
dm-crypt, dm-snap and dm-linear will, by default, passthrough
REQ_OP_PROVISION requests to the underlying device, if
supported.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |  5 ++++-
 drivers/md/dm-linear.c        |  2 ++
 drivers/md/dm-snap.c          |  8 ++++++++
 drivers/md/dm-table.c         | 23 +++++++++++++++++++++++
 drivers/md/dm.c               |  6 ++++++
 include/linux/device-mapper.h | 17 +++++++++++++++++
 6 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8b47b913ee83..aa8072d6d7bf 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3336,6 +3336,9 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		cc->tag_pool_max_sectors <<= cc->sector_shift;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	ret = -ENOMEM;
 	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
@@ -3390,7 +3393,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index f4448d520ee9..66e50f5b0665 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,8 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9c49f53760d0..07927bb1e711 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,8 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2005,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2420,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 119db5e01080..9301f050529f 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1854,6 +1854,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return !bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1987,6 +2007,9 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (!dm_table_supports_provision(t))
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3b694ba3a106..9b94121b8d38 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1609,6 +1609,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1641,6 +1642,11 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 		if (ti->max_write_zeroes_granularity)
 			max_granularity = limits->max_write_zeroes_sectors;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		if (ti->max_provision_granularity)
+			max_granularity = limits->max_provision_sectors;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a52d2b9a6846..9981378457d2 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if this target requires that discards be split on
 	 * 'max_discard_sectors' boundaries.
@@ -376,6 +387,12 @@ struct dm_target {
 	 */
 	bool max_write_zeroes_granularity:1;
 
+	/*
+	 * Set if this target requires that provisions be split on
+	 * 'max_provision_sectors' boundaries.
+	 */
+	bool max_provision_granularity:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v4 3/4] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block. Additionally, if 'skip_block_zeroing'
is not set, dm-thin will opt to zero out the entire range as a part
of provisioning.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 68 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b13c949bd72..58d633f5c928 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -274,6 +274,7 @@ struct pool {
 
 	process_bio_fn process_bio;
 	process_bio_fn process_discard;
+	process_bio_fn process_provision;
 
 	process_cell_fn process_cell;
 	process_cell_fn process_discard_cell;
@@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
-		io_overlaps_block(pool, bio);
+	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
+	       bio_op(bio) != REQ_OP_PROVISION;
 }
 
 static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
@@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
 
 	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
 		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
-		cell_defer_no_holder(tc, virt_cell);
+		if (bio_op(bio) != REQ_OP_PROVISION)
+			cell_defer_no_holder(tc, virt_cell);
 	} else {
 		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
 
@@ -1953,6 +1956,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
 	}
 }
 
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	dm_block_t block = get_bio_block(tc, bio);
+	struct dm_bio_prison_cell *cell;
+	struct dm_cell_key key;
+	struct dm_thin_lookup_result lookup_result;
+
+	/*
+	 * If cell is already occupied, then the block is already
+	 * being provisioned so we have nothing further to do here.
+	 */
+	build_virtual_key(tc->td, block, &key);
+	if (bio_detain(pool, &key, bio, &cell))
+		return;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
+	switch (r) {
+	case 0:
+		if (lookup_result.shared) {
+			process_shared_bio(tc, bio, block, &lookup_result, cell);
+		} else {
+			bio_endio(bio);
+			cell_defer_no_holder(tc, cell);
+		}
+		break;
+	case -ENODATA:
+		provision_block(tc, bio, block, cell);
+		break;
+
+	default:
+		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
+			    __func__, r);
+		cell_defer_no_holder(tc, cell);
+		bio_io_error(bio);
+		break;
+	}
+}
+
 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 {
 	int r;
@@ -2228,6 +2276,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			pool->process_provision(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2579,6 +2629,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_fail;
 		pool->process_discard_cell = process_cell_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2592,6 +2643,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_bio_success;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_cell_success;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2612,6 +2664,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->out_of_data_space = true;
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2628,6 +2681,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_provision_bio;
 		pool->process_cell = process_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2749,7 +2803,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3396,6 +3451,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4288,6 +4346,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->max_discard_granularity = true;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
@@ -4502,6 +4563,8 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 	limits->max_discard_sectors = pool->sectors_per_block * BIO_PRISON_MAX_RANGE;
+
+	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type thin_target = {
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v4 3/4] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block. Additionally, if 'skip_block_zeroing'
is not set, dm-thin will opt to zero out the entire range as a part
of provisioning.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 68 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b13c949bd72..58d633f5c928 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -274,6 +274,7 @@ struct pool {
 
 	process_bio_fn process_bio;
 	process_bio_fn process_discard;
+	process_bio_fn process_provision;
 
 	process_cell_fn process_cell;
 	process_cell_fn process_discard_cell;
@@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
-		io_overlaps_block(pool, bio);
+	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
+	       bio_op(bio) != REQ_OP_PROVISION;
 }
 
 static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
@@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
 
 	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
 		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
-		cell_defer_no_holder(tc, virt_cell);
+		if (bio_op(bio) != REQ_OP_PROVISION)
+			cell_defer_no_holder(tc, virt_cell);
 	} else {
 		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
 
@@ -1953,6 +1956,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
 	}
 }
 
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	dm_block_t block = get_bio_block(tc, bio);
+	struct dm_bio_prison_cell *cell;
+	struct dm_cell_key key;
+	struct dm_thin_lookup_result lookup_result;
+
+	/*
+	 * If cell is already occupied, then the block is already
+	 * being provisioned so we have nothing further to do here.
+	 */
+	build_virtual_key(tc->td, block, &key);
+	if (bio_detain(pool, &key, bio, &cell))
+		return;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
+	switch (r) {
+	case 0:
+		if (lookup_result.shared) {
+			process_shared_bio(tc, bio, block, &lookup_result, cell);
+		} else {
+			bio_endio(bio);
+			cell_defer_no_holder(tc, cell);
+		}
+		break;
+	case -ENODATA:
+		provision_block(tc, bio, block, cell);
+		break;
+
+	default:
+		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
+			    __func__, r);
+		cell_defer_no_holder(tc, cell);
+		bio_io_error(bio);
+		break;
+	}
+}
+
 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 {
 	int r;
@@ -2228,6 +2276,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			pool->process_provision(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2579,6 +2629,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_fail;
 		pool->process_discard_cell = process_cell_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2592,6 +2643,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_bio_success;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_cell_success;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2612,6 +2664,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->out_of_data_space = true;
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2628,6 +2681,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_provision_bio;
 		pool->process_cell = process_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2749,7 +2803,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3396,6 +3451,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4288,6 +4346,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->max_discard_granularity = true;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
@@ -4502,6 +4563,8 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 	limits->max_discard_sectors = pool->sectors_per_block * BIO_PRISON_MAX_RANGE;
+
+	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type thin_target = {
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v4 4/4] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

--
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[PATCH v4 4/4] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v5 0/5] Introduce block provisioning primitives

[Sarthak Kukreti]

Next revision of adding support for block provisioning requests.

Changes from v4:
- Add fix for block devices invalidating pagecache if blkdev_fallocate()
  is called with an invalid mode.
- s/max_provision_sectors/provision_max_bytes in sysfs.

Sarthak Kukreti (5):
  block: Don't invalidate pagecache for invalid falloc modes
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 +++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 +++++++++
 block/blk-sysfs.c             |  9 +++++
 block/bounce.c                |  1 +
 block/fops.c                  | 28 +++++++++-----
 drivers/block/loop.c          | 42 ++++++++++++++++++++
 drivers/md/dm-crypt.c         |  5 ++-
 drivers/md/dm-linear.c        |  2 +
 drivers/md/dm-snap.c          |  8 ++++
 drivers/md/dm-table.c         | 23 +++++++++++
 drivers/md/dm-thin.c          | 73 ++++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 ++++++++
 18 files changed, 318 insertions(+), 18 deletions(-)

-- 
2.40.0.634.g4ca3ef3211-goog

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[PATCH v5 0/5] Introduce block provisioning primitives

[Sarthak Kukreti]

Next revision of adding support for block provisioning requests.

Changes from v4:
- Add fix for block devices invalidating pagecache if blkdev_fallocate()
  is called with an invalid mode.
- s/max_provision_sectors/provision_max_bytes in sysfs.

Sarthak Kukreti (5):
  block: Don't invalidate pagecache for invalid falloc modes
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 +++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 +++++++++
 block/blk-sysfs.c             |  9 +++++
 block/bounce.c                |  1 +
 block/fops.c                  | 28 +++++++++-----
 drivers/block/loop.c          | 42 ++++++++++++++++++++
 drivers/md/dm-crypt.c         |  5 ++-
 drivers/md/dm-linear.c        |  2 +
 drivers/md/dm-snap.c          |  8 ++++
 drivers/md/dm-table.c         | 23 +++++++++++
 drivers/md/dm-thin.c          | 73 ++++++++++++++++++++++++++++++++---
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 ++++++++
 18 files changed, 318 insertions(+), 18 deletions(-)

-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..2fd7e8b9ab48 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,25 +648,27 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
+		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
+			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
+		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
+			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
-		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
+		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
+			blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

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[PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..2fd7e8b9ab48 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,25 +648,27 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
+		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
+			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
+		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
+			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
-		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
+		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
+			blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

Re: [dm-devel] [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Darrick J. Wong]

On Wed, Apr 19, 2023 at 05:48:46PM -0700, Sarthak Kukreti wrote:
> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/fops.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..2fd7e8b9ab48 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,25 +648,27 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  
>  	filemap_invalidate_lock(inode->i_mapping);
>  
> -	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> -
> +	/*
> +	 * Invalidate the page cache, including dirty pages, for valid
> +	 * de-allocate mode calls to fallocate().
> +	 */
>  	switch (mode) {
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> +			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,

I'm pretty sure we're supposed to preserve the error codes returned by
both functions.

	error = truncate_bdev_range(...);
	if (!error)
		error = blkdev_issue_zeroout(...);

--D

>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOUNMAP);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> +			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOFALLBACK);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> -		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> +			blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL);
>  		break;
>  	default:
> -- 
> 2.40.0.634.g4ca3ef3211-goog
> 

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Re: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Darrick J. Wong]

On Wed, Apr 19, 2023 at 05:48:46PM -0700, Sarthak Kukreti wrote:
> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/fops.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..2fd7e8b9ab48 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,25 +648,27 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  
>  	filemap_invalidate_lock(inode->i_mapping);
>  
> -	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> -
> +	/*
> +	 * Invalidate the page cache, including dirty pages, for valid
> +	 * de-allocate mode calls to fallocate().
> +	 */
>  	switch (mode) {
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> +			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,

I'm pretty sure we're supposed to preserve the error codes returned by
both functions.

	error = truncate_bdev_range(...);
	if (!error)
		error = blkdev_issue_zeroout(...);

--D

>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOUNMAP);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> +			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOFALLBACK);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> -		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> +			blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL);
>  		break;
>  	default:
> -- 
> 2.40.0.634.g4ca3ef3211-goog
> 

Re: [dm-devel] [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Sorry I tried to be too concise :) Updated with a fixed up patch!

Best
Sarhtak

On Wed, Apr 19, 2023 at 6:22 PM Darrick J. Wong <djwong@kernel.org> wrote:
>
> On Wed, Apr 19, 2023 at 05:48:46PM -0700, Sarthak Kukreti wrote:
> > Only call truncate_bdev_range() if the fallocate mode is
> > supported. This fixes a bug where data in the pagecache
> > could be invalidated if the fallocate() was called on the
> > block device with an invalid mode.
> >
> > Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/fops.c | 18 ++++++++++--------
> >  1 file changed, 10 insertions(+), 8 deletions(-)
> >
> > diff --git a/block/fops.c b/block/fops.c
> > index d2e6be4e3d1c..2fd7e8b9ab48 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -648,25 +648,27 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >
> >       filemap_invalidate_lock(inode->i_mapping);
> >
> > -     /* Invalidate the page cache, including dirty pages. */
> > -     error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > -     if (error)
> > -             goto fail;
> > -
> > +     /*
> > +      * Invalidate the page cache, including dirty pages, for valid
> > +      * de-allocate mode calls to fallocate().
> > +      */
> >       switch (mode) {
> >       case FALLOC_FL_ZERO_RANGE:
> >       case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> > -             error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> > +                     blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>
> I'm pretty sure we're supposed to preserve the error codes returned by
> both functions.
>
>         error = truncate_bdev_range(...);
>         if (!error)
>                 error = blkdev_issue_zeroout(...);
>
> --D
>
> >                                            len >> SECTOR_SHIFT, GFP_KERNEL,
> >                                            BLKDEV_ZERO_NOUNMAP);
> >               break;
> >       case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> > -             error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> > +                     blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> >                                            len >> SECTOR_SHIFT, GFP_KERNEL,
> >                                            BLKDEV_ZERO_NOFALLBACK);
> >               break;
> >       case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> > -             error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> > +                     blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> >                                            len >> SECTOR_SHIFT, GFP_KERNEL);
> >               break;
> >       default:
> > --
> > 2.40.0.634.g4ca3ef3211-goog
> >

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Re: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Sorry I tried to be too concise :) Updated with a fixed up patch!

Best
Sarhtak

On Wed, Apr 19, 2023 at 6:22 PM Darrick J. Wong <djwong@kernel.org> wrote:
>
> On Wed, Apr 19, 2023 at 05:48:46PM -0700, Sarthak Kukreti wrote:
> > Only call truncate_bdev_range() if the fallocate mode is
> > supported. This fixes a bug where data in the pagecache
> > could be invalidated if the fallocate() was called on the
> > block device with an invalid mode.
> >
> > Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/fops.c | 18 ++++++++++--------
> >  1 file changed, 10 insertions(+), 8 deletions(-)
> >
> > diff --git a/block/fops.c b/block/fops.c
> > index d2e6be4e3d1c..2fd7e8b9ab48 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -648,25 +648,27 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >
> >       filemap_invalidate_lock(inode->i_mapping);
> >
> > -     /* Invalidate the page cache, including dirty pages. */
> > -     error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > -     if (error)
> > -             goto fail;
> > -
> > +     /*
> > +      * Invalidate the page cache, including dirty pages, for valid
> > +      * de-allocate mode calls to fallocate().
> > +      */
> >       switch (mode) {
> >       case FALLOC_FL_ZERO_RANGE:
> >       case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> > -             error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> > +                     blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>
> I'm pretty sure we're supposed to preserve the error codes returned by
> both functions.
>
>         error = truncate_bdev_range(...);
>         if (!error)
>                 error = blkdev_issue_zeroout(...);
>
> --D
>
> >                                            len >> SECTOR_SHIFT, GFP_KERNEL,
> >                                            BLKDEV_ZERO_NOUNMAP);
> >               break;
> >       case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> > -             error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> > +                     blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> >                                            len >> SECTOR_SHIFT, GFP_KERNEL,
> >                                            BLKDEV_ZERO_NOFALLBACK);
> >               break;
> >       case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> > -             error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> > +             error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
> > +                     blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> >                                            len >> SECTOR_SHIFT, GFP_KERNEL);
> >               break;
> >       default:
> > --
> > 2.40.0.634.g4ca3ef3211-goog
> >

[dm-devel] [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 37 ++++++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..d359254c645d 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,26 +648,37 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
-					     len >> SECTOR_SHIFT, GFP_KERNEL,
-					     BLKDEV_ZERO_NOUNMAP);
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			error = blkdev_issue_zeroout(bdev,
+						     start >> SECTOR_SHIFT,
+						     len >> SECTOR_SHIFT,
+						     GFP_KERNEL,
+						     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
-					     len >> SECTOR_SHIFT, GFP_KERNEL,
-					     BLKDEV_ZERO_NOFALLBACK);
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			error = blkdev_issue_zeroout(bdev,
+						     start >> SECTOR_SHIFT,
+						     len >> SECTOR_SHIFT,
+						     GFP_KERNEL,
+						     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
-		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
-					     len >> SECTOR_SHIFT, GFP_KERNEL);
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			error = blkdev_issue_discard(bdev,
+						     start >> SECTOR_SHIFT,
+						     len >> SECTOR_SHIFT,
+						     GFP_KERNEL);
 		break;
 	default:
 		error = -EOPNOTSUPP;
-- 
2.40.0.634.g4ca3ef3211-goog

--
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dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 37 ++++++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 13 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..d359254c645d 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,26 +648,37 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
-					     len >> SECTOR_SHIFT, GFP_KERNEL,
-					     BLKDEV_ZERO_NOUNMAP);
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			error = blkdev_issue_zeroout(bdev,
+						     start >> SECTOR_SHIFT,
+						     len >> SECTOR_SHIFT,
+						     GFP_KERNEL,
+						     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
-		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
-					     len >> SECTOR_SHIFT, GFP_KERNEL,
-					     BLKDEV_ZERO_NOFALLBACK);
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			error = blkdev_issue_zeroout(bdev,
+						     start >> SECTOR_SHIFT,
+						     len >> SECTOR_SHIFT,
+						     GFP_KERNEL,
+						     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
-		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
-					     len >> SECTOR_SHIFT, GFP_KERNEL);
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			error = blkdev_issue_discard(bdev,
+						     start >> SECTOR_SHIFT,
+						     len >> SECTOR_SHIFT,
+						     GFP_KERNEL);
 		break;
 	default:
 		error = -EOPNOTSUPP;
-- 
2.40.0.634.g4ca3ef3211-goog

Re: [dm-devel] [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Mike Snitzer]

On Wed, Apr 19 2023 at  9:47P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")

You should add:

Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>

> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/fops.c | 37 ++++++++++++++++++++++++-------------
>  1 file changed, 24 insertions(+), 13 deletions(-)
> 
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..d359254c645d 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,26 +648,37 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  
>  	filemap_invalidate_lock(inode->i_mapping);
>  
> -	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> -

You remove the only user of the 'fail' label.  But I think it'd be
cleaner to keep using it below (reduces indentation churn too).

> +	/*
> +	 * Invalidate the page cache, including dirty pages, for valid
> +	 * de-allocate mode calls to fallocate().
> +	 */
>  	switch (mode) {
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> -					     len >> SECTOR_SHIFT, GFP_KERNEL,
> -					     BLKDEV_ZERO_NOUNMAP);
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (!error)
> +			error = blkdev_issue_zeroout(bdev,
> +						     start >> SECTOR_SHIFT,
> +						     len >> SECTOR_SHIFT,
> +						     GFP_KERNEL,
> +						     BLKDEV_ZERO_NOUNMAP);
>  		break;


So:

		error = truncate_bdev_range(bdev, file->f_mode, start, end);
		if (error)
		        goto fail;
		...


>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> -					     len >> SECTOR_SHIFT, GFP_KERNEL,
> -					     BLKDEV_ZERO_NOFALLBACK);
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (!error)
> +			error = blkdev_issue_zeroout(bdev,
> +						     start >> SECTOR_SHIFT,
> +						     len >> SECTOR_SHIFT,
> +						     GFP_KERNEL,
> +						     BLKDEV_ZERO_NOFALLBACK);
>  		break;

Same.

>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> -		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> -					     len >> SECTOR_SHIFT, GFP_KERNEL);
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (!error)
> +			error = blkdev_issue_discard(bdev,
> +						     start >> SECTOR_SHIFT,
> +						     len >> SECTOR_SHIFT,
> +						     GFP_KERNEL);
>  		break;

Same.

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https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Mike Snitzer]

On Wed, Apr 19 2023 at  9:47P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")

You should add:

Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>

> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/fops.c | 37 ++++++++++++++++++++++++-------------
>  1 file changed, 24 insertions(+), 13 deletions(-)
> 
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..d359254c645d 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,26 +648,37 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  
>  	filemap_invalidate_lock(inode->i_mapping);
>  
> -	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> -

You remove the only user of the 'fail' label.  But I think it'd be
cleaner to keep using it below (reduces indentation churn too).

> +	/*
> +	 * Invalidate the page cache, including dirty pages, for valid
> +	 * de-allocate mode calls to fallocate().
> +	 */
>  	switch (mode) {
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> -					     len >> SECTOR_SHIFT, GFP_KERNEL,
> -					     BLKDEV_ZERO_NOUNMAP);
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (!error)
> +			error = blkdev_issue_zeroout(bdev,
> +						     start >> SECTOR_SHIFT,
> +						     len >> SECTOR_SHIFT,
> +						     GFP_KERNEL,
> +						     BLKDEV_ZERO_NOUNMAP);
>  		break;


So:

		error = truncate_bdev_range(bdev, file->f_mode, start, end);
		if (error)
		        goto fail;
		...


>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> -		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
> -					     len >> SECTOR_SHIFT, GFP_KERNEL,
> -					     BLKDEV_ZERO_NOFALLBACK);
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (!error)
> +			error = blkdev_issue_zeroout(bdev,
> +						     start >> SECTOR_SHIFT,
> +						     len >> SECTOR_SHIFT,
> +						     GFP_KERNEL,
> +						     BLKDEV_ZERO_NOFALLBACK);
>  		break;

Same.

>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> -		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
> -					     len >> SECTOR_SHIFT, GFP_KERNEL);
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (!error)
> +			error = blkdev_issue_discard(bdev,
> +						     start >> SECTOR_SHIFT,
> +						     len >> SECTOR_SHIFT,
> +						     GFP_KERNEL);
>  		break;

Same.

[dm-devel] [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..20b1eddcbe25 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			goto fail;
+
 		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
-- 
2.40.0.396.gfff15efe05-goog

--
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https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..20b1eddcbe25 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (!error)
+			goto fail;
+
 		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
-- 
2.40.0.396.gfff15efe05-goog

Re: [dm-devel] [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

This patch had a slight typo; fixed in the most recent patch.

- Sarthak

On Thu, Apr 20, 2023 at 10:28 AM Sarthak Kukreti
<sarthakkukreti@chromium.org> wrote:
>
> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
>
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Cc: stable@vger.kernel.org
> Reported-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/fops.c | 21 ++++++++++++++++-----
>  1 file changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..20b1eddcbe25 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>
>         filemap_invalidate_lock(inode->i_mapping);
>
> -       /* Invalidate the page cache, including dirty pages. */
> -       error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -       if (error)
> -               goto fail;
> -
> +       /*
> +        * Invalidate the page cache, including dirty pages, for valid
> +        * de-allocate mode calls to fallocate().
> +        */
>         switch (mode) {
>         case FALLOC_FL_ZERO_RANGE:
>         case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> +               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +               if (error)
> +                       goto fail;
> +
>                 error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>                                              len >> SECTOR_SHIFT, GFP_KERNEL,
>                                              BLKDEV_ZERO_NOUNMAP);
>                 break;
>         case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> +               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +               if (error)
> +                       goto fail;
> +
>                 error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>                                              len >> SECTOR_SHIFT, GFP_KERNEL,
>                                              BLKDEV_ZERO_NOFALLBACK);
>                 break;
>         case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> +               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +               if (!error)
> +                       goto fail;
> +
>                 error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
>                                              len >> SECTOR_SHIFT, GFP_KERNEL);
>                 break;
> --
> 2.40.0.396.gfff15efe05-goog
>

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Re: [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

This patch had a slight typo; fixed in the most recent patch.

- Sarthak

On Thu, Apr 20, 2023 at 10:28 AM Sarthak Kukreti
<sarthakkukreti@chromium.org> wrote:
>
> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
>
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Cc: stable@vger.kernel.org
> Reported-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/fops.c | 21 ++++++++++++++++-----
>  1 file changed, 16 insertions(+), 5 deletions(-)
>
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..20b1eddcbe25 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>
>         filemap_invalidate_lock(inode->i_mapping);
>
> -       /* Invalidate the page cache, including dirty pages. */
> -       error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -       if (error)
> -               goto fail;
> -
> +       /*
> +        * Invalidate the page cache, including dirty pages, for valid
> +        * de-allocate mode calls to fallocate().
> +        */
>         switch (mode) {
>         case FALLOC_FL_ZERO_RANGE:
>         case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> +               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +               if (error)
> +                       goto fail;
> +
>                 error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>                                              len >> SECTOR_SHIFT, GFP_KERNEL,
>                                              BLKDEV_ZERO_NOUNMAP);
>                 break;
>         case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> +               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +               if (error)
> +                       goto fail;
> +
>                 error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>                                              len >> SECTOR_SHIFT, GFP_KERNEL,
>                                              BLKDEV_ZERO_NOFALLBACK);
>                 break;
>         case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> +               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +               if (!error)
> +                       goto fail;
> +
>                 error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
>                                              len >> SECTOR_SHIFT, GFP_KERNEL);
>                 break;
> --
> 2.40.0.396.gfff15efe05-goog
>

[dm-devel] [PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..4c70fdc546e7 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
-- 
2.40.0.396.gfff15efe05-goog

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[PATCH v5-fix 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..4c70fdc546e7 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
-- 
2.40.0.396.gfff15efe05-goog

Re: [dm-devel] [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[kernel test robot]

Hi Sarthak,

kernel test robot noticed the following build warnings:

[auto build test WARNING on device-mapper-dm/for-next]
[also build test WARNING on linus/master v6.3 next-20230421]
[cannot apply to axboe-block/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Sarthak-Kukreti/block-Introduce-provisioning-primitives/20230420-095025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
patch link:    https://lore.kernel.org/r/20230420004850.297045-2-sarthakkukreti%40chromium.org
patch subject: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes
config: hexagon-randconfig-r006-20230424 (https://download.01.org/0day-ci/archive/20230424/202304242302.5zYRfUub-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Sarthak-Kukreti/block-Introduce-provisioning-primitives/20230420-095025
        git checkout 8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304242302.5zYRfUub-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from block/fops.c:9:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from block/fops.c:9:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from block/fops.c:9:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
>> block/fops.c:678:2: warning: unused label 'fail' [-Wunused-label]
    fail:
    ^~~~~
   7 warnings generated.


vim +/fail +678 block/fops.c

cd82cca7ebfe9c Christoph Hellwig 2021-09-07  613  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  614  #define	BLKDEV_FALLOC_FL_SUPPORTED					\
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  615  		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  616  		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  617  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  618  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  619  			     loff_t len)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  620  {
f278eb3d8178f9 Ming Lei          2021-09-23  621  	struct inode *inode = bdev_file_inode(file);
f278eb3d8178f9 Ming Lei          2021-09-23  622  	struct block_device *bdev = I_BDEV(inode);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  623  	loff_t end = start + len - 1;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  624  	loff_t isize;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  625  	int error;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  626  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  627  	/* Fail if we don't recognize the flags. */
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  628  	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  629  		return -EOPNOTSUPP;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  630  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  631  	/* Don't go off the end of the device. */
2a93ad8fcb377b Christoph Hellwig 2021-10-18  632  	isize = bdev_nr_bytes(bdev);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  633  	if (start >= isize)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  634  		return -EINVAL;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  635  	if (end >= isize) {
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  636  		if (mode & FALLOC_FL_KEEP_SIZE) {
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  637  			len = isize - start;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  638  			end = start + len - 1;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  639  		} else
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  640  			return -EINVAL;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  641  	}
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  642  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  643  	/*
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  644  	 * Don't allow IO that isn't aligned to logical block size.
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  645  	 */
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  646  	if ((start | len) & (bdev_logical_block_size(bdev) - 1))
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  647  		return -EINVAL;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  648  
f278eb3d8178f9 Ming Lei          2021-09-23  649  	filemap_invalidate_lock(inode->i_mapping);
f278eb3d8178f9 Ming Lei          2021-09-23  650  
8bd0744b438be1 Sarthak Kukreti   2023-04-19  651  	/*
8bd0744b438be1 Sarthak Kukreti   2023-04-19  652  	 * Invalidate the page cache, including dirty pages, for valid
8bd0744b438be1 Sarthak Kukreti   2023-04-19  653  	 * de-allocate mode calls to fallocate().
8bd0744b438be1 Sarthak Kukreti   2023-04-19  654  	 */
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  655  	switch (mode) {
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  656  	case FALLOC_FL_ZERO_RANGE:
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  657  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
8bd0744b438be1 Sarthak Kukreti   2023-04-19  658  		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
8bd0744b438be1 Sarthak Kukreti   2023-04-19  659  			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
6549a874fb65e7 Pavel Begunkov    2021-10-20  660  					     len >> SECTOR_SHIFT, GFP_KERNEL,
6549a874fb65e7 Pavel Begunkov    2021-10-20  661  					     BLKDEV_ZERO_NOUNMAP);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  662  		break;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  663  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
8bd0744b438be1 Sarthak Kukreti   2023-04-19  664  		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
8bd0744b438be1 Sarthak Kukreti   2023-04-19  665  			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
6549a874fb65e7 Pavel Begunkov    2021-10-20  666  					     len >> SECTOR_SHIFT, GFP_KERNEL,
6549a874fb65e7 Pavel Begunkov    2021-10-20  667  					     BLKDEV_ZERO_NOFALLBACK);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  668  		break;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  669  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
8bd0744b438be1 Sarthak Kukreti   2023-04-19  670  		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
8bd0744b438be1 Sarthak Kukreti   2023-04-19  671  			blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
44abff2c0b970a Christoph Hellwig 2022-04-15  672  					     len >> SECTOR_SHIFT, GFP_KERNEL);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  673  		break;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  674  	default:
f278eb3d8178f9 Ming Lei          2021-09-23  675  		error = -EOPNOTSUPP;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  676  	}
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  677  
f278eb3d8178f9 Ming Lei          2021-09-23 @678   fail:
f278eb3d8178f9 Ming Lei          2021-09-23  679  	filemap_invalidate_unlock(inode->i_mapping);
f278eb3d8178f9 Ming Lei          2021-09-23  680  	return error;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  681  }
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  682  

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Re: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[kernel test robot]

Hi Sarthak,

kernel test robot noticed the following build warnings:

[auto build test WARNING on device-mapper-dm/for-next]
[also build test WARNING on linus/master v6.3 next-20230421]
[cannot apply to axboe-block/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Sarthak-Kukreti/block-Introduce-provisioning-primitives/20230420-095025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
patch link:    https://lore.kernel.org/r/20230420004850.297045-2-sarthakkukreti%40chromium.org
patch subject: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes
config: hexagon-randconfig-r006-20230424 (https://download.01.org/0day-ci/archive/20230424/202304242302.5zYRfUub-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Sarthak-Kukreti/block-Introduce-provisioning-primitives/20230420-095025
        git checkout 8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304242302.5zYRfUub-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from block/fops.c:9:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from block/fops.c:9:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from block/fops.c:9:
   In file included from include/linux/blkdev.h:9:
   In file included from include/linux/blk_types.h:10:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:12:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
>> block/fops.c:678:2: warning: unused label 'fail' [-Wunused-label]
    fail:
    ^~~~~
   7 warnings generated.


vim +/fail +678 block/fops.c

cd82cca7ebfe9c Christoph Hellwig 2021-09-07  613  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  614  #define	BLKDEV_FALLOC_FL_SUPPORTED					\
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  615  		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  616  		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  617  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  618  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  619  			     loff_t len)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  620  {
f278eb3d8178f9 Ming Lei          2021-09-23  621  	struct inode *inode = bdev_file_inode(file);
f278eb3d8178f9 Ming Lei          2021-09-23  622  	struct block_device *bdev = I_BDEV(inode);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  623  	loff_t end = start + len - 1;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  624  	loff_t isize;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  625  	int error;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  626  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  627  	/* Fail if we don't recognize the flags. */
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  628  	if (mode & ~BLKDEV_FALLOC_FL_SUPPORTED)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  629  		return -EOPNOTSUPP;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  630  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  631  	/* Don't go off the end of the device. */
2a93ad8fcb377b Christoph Hellwig 2021-10-18  632  	isize = bdev_nr_bytes(bdev);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  633  	if (start >= isize)
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  634  		return -EINVAL;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  635  	if (end >= isize) {
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  636  		if (mode & FALLOC_FL_KEEP_SIZE) {
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  637  			len = isize - start;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  638  			end = start + len - 1;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  639  		} else
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  640  			return -EINVAL;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  641  	}
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  642  
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  643  	/*
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  644  	 * Don't allow IO that isn't aligned to logical block size.
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  645  	 */
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  646  	if ((start | len) & (bdev_logical_block_size(bdev) - 1))
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  647  		return -EINVAL;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  648  
f278eb3d8178f9 Ming Lei          2021-09-23  649  	filemap_invalidate_lock(inode->i_mapping);
f278eb3d8178f9 Ming Lei          2021-09-23  650  
8bd0744b438be1 Sarthak Kukreti   2023-04-19  651  	/*
8bd0744b438be1 Sarthak Kukreti   2023-04-19  652  	 * Invalidate the page cache, including dirty pages, for valid
8bd0744b438be1 Sarthak Kukreti   2023-04-19  653  	 * de-allocate mode calls to fallocate().
8bd0744b438be1 Sarthak Kukreti   2023-04-19  654  	 */
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  655  	switch (mode) {
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  656  	case FALLOC_FL_ZERO_RANGE:
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  657  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
8bd0744b438be1 Sarthak Kukreti   2023-04-19  658  		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
8bd0744b438be1 Sarthak Kukreti   2023-04-19  659  			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
6549a874fb65e7 Pavel Begunkov    2021-10-20  660  					     len >> SECTOR_SHIFT, GFP_KERNEL,
6549a874fb65e7 Pavel Begunkov    2021-10-20  661  					     BLKDEV_ZERO_NOUNMAP);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  662  		break;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  663  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
8bd0744b438be1 Sarthak Kukreti   2023-04-19  664  		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
8bd0744b438be1 Sarthak Kukreti   2023-04-19  665  			blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
6549a874fb65e7 Pavel Begunkov    2021-10-20  666  					     len >> SECTOR_SHIFT, GFP_KERNEL,
6549a874fb65e7 Pavel Begunkov    2021-10-20  667  					     BLKDEV_ZERO_NOFALLBACK);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  668  		break;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  669  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
8bd0744b438be1 Sarthak Kukreti   2023-04-19  670  		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
8bd0744b438be1 Sarthak Kukreti   2023-04-19  671  			blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
44abff2c0b970a Christoph Hellwig 2022-04-15  672  					     len >> SECTOR_SHIFT, GFP_KERNEL);
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  673  		break;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  674  	default:
f278eb3d8178f9 Ming Lei          2021-09-23  675  		error = -EOPNOTSUPP;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  676  	}
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  677  
f278eb3d8178f9 Ming Lei          2021-09-23 @678   fail:
f278eb3d8178f9 Ming Lei          2021-09-23  679  	filemap_invalidate_unlock(inode->i_mapping);
f278eb3d8178f9 Ming Lei          2021-09-23  680  	return error;
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  681  }
cd82cca7ebfe9c Christoph Hellwig 2021-09-07  682  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

Re: [dm-devel] [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 2726 bytes --]

Hello,

kernel test robot noticed "xfstests.generic.351.fail" on:

commit: 8bd0744b438be1722c5f8c1fe077e9dcef0e81b7 ("[PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes")
url: https://github.com/intel-lab-lkp/linux/commits/Sarthak-Kukreti/block-Introduce-provisioning-primitives/20230420-095025
base: https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git for-next
patch link: https://lore.kernel.org/all/20230420004850.297045-2-sarthakkukreti@chromium.org/
patch subject: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

in testcase: xfstests
version: xfstests-x86_64-a7df89e-1_20230410
with following parameters:

	disk: 4HDD
	fs: xfs
	test: generic-group-17

compiler: gcc-11
test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@intel.com>
| Link: https://lore.kernel.org/oe-lkp/202305041600.1633e4ac-yujie.liu@intel.com


generic/351       - output mismatch (see /lkp/benchmarks/xfstests/results//generic/351.out.bad)
    --- tests/generic/351.out	2023-04-10 17:18:19.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//generic/351.out.bad	2023-04-28 03:22:46.227470830 +0000
    @@ -25,7 +25,7 @@
     Destroy device
     Create w/o unmap or writesame and format
     Zero punch, no fallback available
    -fallocate: Operation not supported
    +fallocate: No such file or directory
     Zero range, write fallback
     Check contents
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/351.out /lkp/benchmarks/xfstests/results//generic/351.out.bad'  to see the entire diff)


QA output created by 351
Create and format
Regular fallocate
fallocate: Operation not supported
Insert range
fallocate: Operation not supported
Collapse range
fallocate: Operation not supported
Unaligned zero range
fallocate: Invalid argument
Unaligned punch
fallocate: Invalid argument
Zero range past MAX_LFS_FILESIZE keep size
fallocate: File too large
Zero range past MAX_LFS_FILESIZE
fallocate: File too large
Zero range to MAX_LFS_FILESIZE fail w/o keepsize
fallocate: Invalid argument
Zero range starts past EOD
fallocate: Invalid argument
Punch starts past EOD
fallocate: Invalid argument
Check contents
b83f9394092e15bdcda585cd8e776dc6  SCSI_DEBUG_DEV
Destroy device
Create w/o unmap or writesame and format
Zero punch, no fallback available
fallocate: No such file or directory
Zero range, write fallback
Check contents
0fc6bc93cd0cd97e3cde5ea39ea1185d  SCSI_DEBUG_DEV
Destroy device


-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

[-- Attachment #2: config-6.3.0-rc4-00043-g8bd0744b438b --]
[-- Type: text/plain, Size: 161800 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 6.3.0-rc4 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-12) 11.3.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110300
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=24000
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=24000
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=125
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ_FULL=y
CONFIG_CONTEXT_TRACKING_USER=y
# CONFIG_CONTEXT_TRACKING_USER_FORCE is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=125
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# CONFIG_BPF_PRELOAD is not set
# CONFIG_BPF_LSM is not set
# end of BPF subsystem

CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_PREEMPT_DYNAMIC is not set
# CONFIG_SCHED_CORE is not set

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_SCHED_AVG_IRQ=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_FORCE_TASKS_RCU=y
CONFIG_TASKS_RCU=y
# CONFIG_FORCE_TASKS_RUDE_RCU is not set
CONFIG_TASKS_RUDE_RCU=y
CONFIG_FORCE_TASKS_TRACE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
CONFIG_RCU_NOCB_CPU=y
# CONFIG_RCU_NOCB_CPU_DEFAULT_ALL is not set
# CONFIG_TASKS_TRACE_RCU_READ_MB is not set
# CONFIG_RCU_LAZY is not set
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC11_NO_ARRAY_BOUNDS=y
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_NUMA_BALANCING=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
# CONFIG_CGROUP_FAVOR_DYNMODS is not set
CONFIG_MEMCG=y
CONFIG_MEMCG_KMEM=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_SCHED_MM_CID=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_AUDIT_ARCH=y
CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_X2APIC=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
# CONFIG_X86_CPU_RESCTRL is not set
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
CONFIG_X86_UV=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
CONFIG_PARAVIRT_TIME_ACCOUNTING=y
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
CONFIG_INTEL_TDX_GUEST=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
CONFIG_BOOT_VESA_SUPPORT=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS_RANGE_BEGIN=8192
CONFIG_NR_CPUS_RANGE_END=8192
CONFIG_NR_CPUS_DEFAULT=8192
CONFIG_NR_CPUS=8192
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=m
CONFIG_PERF_EVENTS_INTEL_RAPL=m
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
# CONFIG_PERF_EVENTS_AMD_POWER is not set
# CONFIG_PERF_EVENTS_AMD_UNCORE is not set
# CONFIG_PERF_EVENTS_AMD_BRS is not set
# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_LATE_LOADING=y
CONFIG_X86_MSR=m
CONFIG_X86_CPUID=y
CONFIG_X86_5LEVEL=y
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set
CONFIG_X86_MEM_ENCRYPT=y
# CONFIG_AMD_MEM_ENCRYPT is not set
CONFIG_NUMA=y
# CONFIG_AMD_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
CONFIG_X86_KERNEL_IBT=y
CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
# CONFIG_X86_INTEL_TSX_MODE_OFF is not set
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
CONFIG_X86_INTEL_TSX_MODE_AUTO=y
# CONFIG_X86_SGX is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_HANDOVER_PROTOCOL=y
CONFIG_EFI_MIXED=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
CONFIG_ARCH_HAS_KEXEC_PURGATORY=y
# CONFIG_KEXEC_SIG is not set
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_DYNAMIC_MEMORY_LAYOUT=y
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_XONLY=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features

CONFIG_CC_HAS_SLS=y
CONFIG_CC_HAS_RETURN_THUNK=y
CONFIG_CC_HAS_ENTRY_PADDING=y
CONFIG_FUNCTION_PADDING_CFI=11
CONFIG_FUNCTION_PADDING_BYTES=16
CONFIG_SPECULATION_MITIGATIONS=y
CONFIG_PAGE_TABLE_ISOLATION=y
# CONFIG_RETPOLINE is not set
CONFIG_CPU_IBPB_ENTRY=y
CONFIG_CPU_IBRS_ENTRY=y
# CONFIG_SLS is not set
CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_USERSPACE_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_ADVANCED_DEBUG is not set
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
# CONFIG_ACPI_FPDT is not set
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
CONFIG_ACPI_EC_DEBUGFS=m
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_TAD=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_PLATFORM_PROFILE=m
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
CONFIG_ACPI_NFIT=m
# CONFIG_NFIT_SECURITY_DEBUG is not set
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_HMAT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
CONFIG_ACPI_APEI_EINJ=m
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_DPTF is not set
CONFIG_ACPI_WATCHDOG=y
CONFIG_ACPI_EXTLOG=m
CONFIG_ACPI_ADXL=y
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_ACPI_PFRUT is not set
CONFIG_ACPI_PCC=y
# CONFIG_ACPI_FFH is not set
# CONFIG_PMIC_OPREGION is not set
CONFIG_ACPI_PRMT=y
CONFIG_X86_PM_TIMER=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_AMD_PSTATE is not set
# CONFIG_X86_AMD_PSTATE_UT is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m

#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
CONFIG_CPU_IDLE_GOV_HALTPOLL=y
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_X86_X32_ABI is not set
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
# end of Binary Emulations

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_DIRTY_RING_TSO=y
CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_KVM_GENERIC_HARDWARE_ENABLING=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD is not set
CONFIG_KVM_SMM=y
# CONFIG_KVM_XEN is not set
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y
CONFIG_AS_GFNI=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_KRETPROBE_ON_RETHOOK=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_RUST=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_ARCH_SUPPORTS_CFI_CLANG=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_CONTEXT_TRACKING_USER_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_HAVE_OBJTOOL=y
CONFIG_HAVE_JUMP_LABEL_HACK=y
CONFIG_HAVE_NOINSTR_HACK=y
CONFIG_HAVE_NOINSTR_VALIDATION=y
CONFIG_HAVE_UACCESS_VALIDATION=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_ARCH_HAS_CC_PLATFORM=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
CONFIG_FUNCTION_ALIGNMENT_4B=y
CONFIG_FUNCTION_ALIGNMENT_16B=y
CONFIG_FUNCTION_ALIGNMENT=16
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=m
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
# CONFIG_BLK_CGROUP_IOPRIO is not set
CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_DEBUG_FS_ZONED=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_MQ_RDMA=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
# CONFIG_BFQ_CGROUP_DEBUG is not set
# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_ZPOOL=y
CONFIG_SWAP=y
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_DEFAULT_ON is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="lzo"
CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD is not set
# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set
CONFIG_ZSWAP_ZPOOL_DEFAULT="zbud"
CONFIG_ZBUD=y
# CONFIG_Z3FOLD is not set
CONFIG_ZSMALLOC=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_ZSMALLOC_CHAIN_SIZE=8

#
# SLAB allocator options
#
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLAB_FREELIST_RANDOM=y
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLUB_STATS is not set
CONFIG_SLUB_CPU_PARTIAL=y
# end of SLAB allocator options

CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MHP_MEMMAP_ON_MEMORY=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_DEVICE_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_THP_SWAP=y
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_FRONTSWAP=y
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
# CONFIG_CMA_SYSFS is not set
CONFIG_CMA_AREAS=19
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y
CONFIG_HMM_MIRROR=y
CONFIG_GET_FREE_REGION=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
CONFIG_TLS=m
CONFIG_TLS_DEVICE=y
# CONFIG_TLS_TOE is not set
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_USER_COMPAT is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=m
CONFIG_XFRM_ESP=m
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
# CONFIG_SMC is not set
CONFIG_XDP_SOCKETS=y
# CONFIG_XDP_SOCKETS_DIAG is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_NET_IPVTI=m
CONFIG_NET_UDP_TUNNEL=m
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_ESP_OFFLOAD=m
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=m
CONFIG_INET_TABLE_PERTURB_ORDER=16
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_INET_RAW_DIAG=m
# CONFIG_INET_DIAG_DESTROY is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_TCP_CONG_DCTCP=m
# CONFIG_TCP_CONG_CDG is not set
CONFIG_TCP_CONG_BBR=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_ESP_OFFLOAD=m
# CONFIG_INET6_ESPINTCP is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
# CONFIG_IPV6_ILA is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_NETLABEL=y
# CONFIG_MPTCP is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
CONFIG_NETFILTER_SKIP_EGRESS=y
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
# CONFIG_NETFILTER_NETLINK_HOOK is not set
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NETFILTER_NETLINK_OSF=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_SYSLOG=m
CONFIG_NETFILTER_CONNCOUNT=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_LABELS=y
CONFIG_NF_CONNTRACK_OVS=y
CONFIG_NF_CT_PROTO_DCCP=y
CONFIG_NF_CT_PROTO_GRE=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_TIMEOUT=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_NAT=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_REDIRECT=y
CONFIG_NF_NAT_MASQUERADE=y
CONFIG_NF_NAT_OVS=y
CONFIG_NETFILTER_SYNPROXY=m
CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_INET=y
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_NUMGEN=m
CONFIG_NFT_CT=m
CONFIG_NFT_CONNLIMIT=m
CONFIG_NFT_LOG=m
CONFIG_NFT_LIMIT=m
CONFIG_NFT_MASQ=m
CONFIG_NFT_REDIR=m
CONFIG_NFT_NAT=m
# CONFIG_NFT_TUNNEL is not set
CONFIG_NFT_QUEUE=m
CONFIG_NFT_QUOTA=m
CONFIG_NFT_REJECT=m
CONFIG_NFT_REJECT_INET=m
CONFIG_NFT_COMPAT=m
CONFIG_NFT_HASH=m
CONFIG_NFT_FIB=m
CONFIG_NFT_FIB_INET=m
# CONFIG_NFT_XFRM is not set
CONFIG_NFT_SOCKET=m
# CONFIG_NFT_OSF is not set
# CONFIG_NFT_TPROXY is not set
# CONFIG_NFT_SYNPROXY is not set
CONFIG_NF_DUP_NETDEV=m
CONFIG_NFT_DUP_NETDEV=m
CONFIG_NFT_FWD_NETDEV=m
CONFIG_NFT_FIB_NETDEV=m
# CONFIG_NFT_REJECT_NETDEV is not set
# CONFIG_NF_FLOW_TABLE is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XTABLES_COMPAT=y

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_NAT=m
CONFIG_NETFILTER_XT_TARGET_NETMAP=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CGROUP=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# end of Core Netfilter Configuration

# CONFIG_IP_SET is not set
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_FO=m
CONFIG_IP_VS_OVF=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
# CONFIG_IP_VS_MH is not set
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
# CONFIG_IP_VS_TWOS is not set

#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8

#
# IPVS MH scheduler
#
CONFIG_IP_VS_MH_TAB_INDEX=12

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_NFCT=y
CONFIG_IP_VS_PE_SIP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_SOCKET_IPV4=m
CONFIG_NF_TPROXY_IPV4=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_REJECT_IPV4=m
CONFIG_NFT_DUP_IPV4=m
CONFIG_NFT_FIB_IPV4=m
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_DUP_IPV4=m
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_RPFILTER=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_SYNPROXY=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_SOCKET_IPV6=m
CONFIG_NF_TPROXY_IPV6=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_REJECT_IPV6=m
CONFIG_NFT_DUP_IPV6=m
CONFIG_NFT_FIB_IPV6=m
CONFIG_NF_DUP_IPV6=m
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RPFILTER=m
CONFIG_IP6_NF_MATCH_RT=m
# CONFIG_IP6_NF_MATCH_SRH is not set
# CONFIG_IP6_NF_TARGET_HL is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_TARGET_SYNPROXY=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
CONFIG_IP6_NF_TARGET_NPT=m
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_TABLES_BRIDGE=m
# CONFIG_NFT_BRIDGE_META is not set
CONFIG_NFT_BRIDGE_REJECT=m
# CONFIG_NF_CONNTRACK_BRIDGE is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_INET_SCTP_DIAG=m
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
CONFIG_NET_SCH_MQPRIO_LIB=m
# CONFIG_NET_SCH_TAPRIO is not set
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
# CONFIG_NET_SCH_SKBPRIO is not set
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_QFQ=m
CONFIG_NET_SCH_CODEL=m
CONFIG_NET_SCH_FQ_CODEL=y
# CONFIG_NET_SCH_CAKE is not set
CONFIG_NET_SCH_FQ=m
CONFIG_NET_SCH_HHF=m
CONFIG_NET_SCH_PIE=m
# CONFIG_NET_SCH_FQ_PIE is not set
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_ETS is not set
CONFIG_NET_SCH_DEFAULT=y
# CONFIG_DEFAULT_FQ is not set
# CONFIG_DEFAULT_CODEL is not set
CONFIG_DEFAULT_FQ_CODEL=y
# CONFIG_DEFAULT_SFQ is not set
# CONFIG_DEFAULT_PFIFO_FAST is not set
CONFIG_DEFAULT_NET_SCH="fq_codel"

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=m
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
# CONFIG_NET_EMATCH_IPT is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_SAMPLE=m
# CONFIG_NET_ACT_IPT is not set
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
# CONFIG_NET_ACT_MPLS is not set
CONFIG_NET_ACT_VLAN=m
CONFIG_NET_ACT_BPF=m
# CONFIG_NET_ACT_CONNMARK is not set
# CONFIG_NET_ACT_CTINFO is not set
CONFIG_NET_ACT_SKBMOD=m
# CONFIG_NET_ACT_IFE is not set
CONFIG_NET_ACT_TUNNEL_KEY=m
# CONFIG_NET_ACT_GATE is not set
# CONFIG_NET_TC_SKB_EXT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
CONFIG_OPENVSWITCH=m
CONFIG_OPENVSWITCH_GRE=m
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VSOCKETS_LOOPBACK=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_HYPERV_VSOCKETS=m
CONFIG_NETLINK_DIAG=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_NET_NSH=y
# CONFIG_HSR is not set
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
CONFIG_NET_DROP_MONITOR=y
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_RDMA is not set
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
# CONFIG_NFC is not set
CONFIG_PSAMPLE=m
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_SOCK_VALIDATE_XMIT=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIE_ECRC=y
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
# CONFIG_PCIE_PTM is not set
# CONFIG_PCIE_EDR is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_PF_STUB=m
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_LABEL=y
CONFIG_PCI_HYPERV=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=y

#
# PCI controller drivers
#
CONFIG_VMD=y
CONFIG_PCI_HYPERV_INTERFACE=m

#
# DesignWare PCI Core Support
#
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_MESON is not set
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPI=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
CONFIG_FW_CFG_SYSFS=y
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_ESRT=y
CONFIG_EFI_VARS_PSTORE=y
CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE=y
CONFIG_EFI_DXE_MEM_ATTRIBUTES=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
# CONFIG_EFI_BOOTLOADER_CONTROL is not set
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_APPLE_PROPERTIES is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y
# CONFIG_EFI_DISABLE_RUNTIME is not set
# CONFIG_EFI_COCO_SECRET is not set
# end of EFI (Extensible Firmware Interface) Support

CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_1284=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=m
CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION=y
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=m
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_VIRTIO_BLK=m
CONFIG_BLK_DEV_RBD=m
# CONFIG_BLK_DEV_UBLK is not set

#
# NVME Support
#
CONFIG_NVME_CORE=m
CONFIG_BLK_DEV_NVME=m
CONFIG_NVME_MULTIPATH=y
# CONFIG_NVME_VERBOSE_ERRORS is not set
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=m
# CONFIG_NVME_RDMA is not set
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TCP is not set
# CONFIG_NVME_AUTH is not set
CONFIG_NVME_TARGET=m
# CONFIG_NVME_TARGET_PASSTHRU is not set
CONFIG_NVME_TARGET_LOOP=m
# CONFIG_NVME_TARGET_RDMA is not set
CONFIG_NVME_TARGET_FC=m
# CONFIG_NVME_TARGET_TCP is not set
# CONFIG_NVME_TARGET_AUTH is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_SGI_XP is not set
CONFIG_HP_ILO=m
# CONFIG_SGI_GRU is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_GSC is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MEI_PXP is not set
# CONFIG_VMWARE_VMCI is not set
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_UACCE is not set
CONFIG_PVPANIC=y
# CONFIG_PVPANIC_MMIO is not set
# CONFIG_PVPANIC_PCI is not set
# CONFIG_GP_PCI1XXXX is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_BLK_DEV_BSG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_MPT3SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT3SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPI3MR is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
CONFIG_HYPERV_STORAGE=m
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
CONFIG_SCSI_ISCI=m
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=y
CONFIG_SCSI_DH_HP_SW=y
CONFIG_SCSI_DH_EMC=y
CONFIG_SCSI_DH_ALUA=y
# end of SCSI device support

CONFIG_ATA=m
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_MOBILE_LPM_POLICY=0
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_AHCI_DWC is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_PARPORT is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=m
CONFIG_DM_PERSISTENT_DATA=m
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_THIN_PROVISIONING=m
CONFIG_DM_CACHE=m
CONFIG_DM_CACHE_SMQ=m
CONFIG_DM_WRITECACHE=m
# CONFIG_DM_EBS is not set
CONFIG_DM_ERA=m
# CONFIG_DM_CLONE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_DUST is not set
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
CONFIG_DM_VERITY=m
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
# CONFIG_DM_VERITY_FEC is not set
CONFIG_DM_SWITCH=m
CONFIG_DM_LOG_WRITES=m
CONFIG_DM_INTEGRITY=m
# CONFIG_DM_ZONED is not set
CONFIG_DM_AUDIT=y
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_AMT is not set
CONFIG_MACSEC=m
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
# CONFIG_NET_VRF is not set
# CONFIG_VSOCKMON is not set
# CONFIG_ARCNET is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
# CONFIG_ENA_ETHERNET is not set
# CONFIG_NET_VENDOR_AMD is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
# CONFIG_CX_ECAT is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
CONFIG_CAVIUM_PTP=y
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9051 is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_GVE is not set
CONFIG_NET_VENDOR_HUAWEI=y
# CONFIG_HINIC is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_E1000E_HWTS=y
CONFIG_IGB=y
CONFIG_IGB_HWMON=y
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
CONFIG_IXGBE=y
CONFIG_IXGBE_HWMON=y
# CONFIG_IXGBE_DCB is not set
# CONFIG_IXGBE_IPSEC is not set
# CONFIG_IXGBEVF is not set
CONFIG_I40E=y
# CONFIG_I40E_DCB is not set
# CONFIG_I40EVF is not set
# CONFIG_ICE is not set
# CONFIG_FM10K is not set
CONFIG_IGC=y
CONFIG_NET_VENDOR_WANGXUN=y
# CONFIG_NGBE is not set
# CONFIG_TXGBE is not set
# CONFIG_JME is not set
CONFIG_NET_VENDOR_ADI=y
# CONFIG_ADIN1110 is not set
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_OCTEON_EP is not set
# CONFIG_PRESTERA is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
# CONFIG_LAN743X is not set
# CONFIG_VCAP is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MICROSOFT=y
# CONFIG_MICROSOFT_MANA is not set
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_PENSANDO=y
# CONFIG_IONIC is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_R8169=y
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
# CONFIG_ROCKER is not set
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
# CONFIG_SFC_SIENA is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_PHY_SEL is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLINK=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_FIXED_PHY=y
# CONFIG_SFP is not set

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_ADIN1100_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AX88796B_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_NCN26000_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_DP83TD510_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PSE_CONTROLLER is not set
# CONFIG_CAN_DEV is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
# end of PCS device drivers

# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
CONFIG_USB_RTL8152=y
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=y
CONFIG_USB_NET_AX88179_178A=y
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
# CONFIG_ATH11K is not set
# CONFIG_ATH12K is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
# CONFIG_IWLWIFI is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
CONFIG_WLAN_VENDOR_MICROCHIP=y
# CONFIG_WILC1000_SDIO is not set
# CONFIG_WILC1000_SPI is not set
CONFIG_WLAN_VENDOR_PURELIFI=y
# CONFIG_PLFXLC is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
# CONFIG_RTW88 is not set
# CONFIG_RTW89 is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_SILABS=y
# CONFIG_WFX is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
CONFIG_WLAN_VENDOR_QUANTENNA=y
# CONFIG_QTNFMAC_PCIE is not set
CONFIG_MAC80211_HWSIM=m
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set
# CONFIG_WAN is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
CONFIG_HYPERV_NET=y
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_SPARSEKMAP=m
# CONFIG_INPUT_MATRIXKMAP is not set
CONFIG_INPUT_VIVALDIFMAP=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
CONFIG_MOUSE_CYAPA=m
CONFIG_MOUSE_ELAN_I2C=m
CONFIG_MOUSE_ELAN_I2C_I2C=y
CONFIG_MOUSE_ELAN_I2C_SMBUS=y
CONFIG_MOUSE_VSXXXAA=m
# CONFIG_MOUSE_GPIO is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=m
CONFIG_RMI4_I2C=m
CONFIG_RMI4_SPI=m
CONFIG_RMI4_SMB=m
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=m
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
CONFIG_RMI4_F34=y
# CONFIG_RMI4_F3A is not set
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
# CONFIG_SERIO_PS2MULT is not set
CONFIG_SERIO_ARC_PS2=m
CONFIG_HYPERV_KEYBOARD=m
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LEGACY_TIOCSTI=y
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCILIB=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=64
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_PCI1XXXX is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_SERIAL_ARC=m
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=m
CONFIG_N_GSM=m
CONFIG_NOZOMI=m
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_SERIAL_DEV_BUS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
CONFIG_IPMI_PANIC_EVENT=y
CONFIG_IPMI_PANIC_STRING=y
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_DEVMEM=y
CONFIG_NVRAM=y
CONFIG_DEVPORT=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HPET_MMAP_DEFAULT is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_UV_MMTIMER=m
CONFIG_TCG_TPM=y
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_SPI is not set
# CONFIG_TCG_TIS_I2C is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
CONFIG_TELCLOCK=m
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_MUX_MLXCPLD=m
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=y
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m

#
# ACPI drivers
#
CONFIG_I2C_SCMI=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
# CONFIG_I2C_DESIGNWARE_AMDPSP is not set
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
CONFIG_I2C_PARPORT=m
# CONFIG_I2C_PCI1XXXX is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_MLXCPLD=m
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

CONFIG_I2C_STUB=m
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_MICROCHIP_CORE is not set
# CONFIG_SPI_MICROCHIP_CORE_QSPI is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PCI1XXXX is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=m
CONFIG_PPS_CLIENT_PARPORT=m
CONFIG_PPS_CLIENT_GPIO=m

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
# CONFIG_DP83640_PHY is not set
# CONFIG_PTP_1588_CLOCK_INES is not set
CONFIG_PTP_1588_CLOCK_KVM=m
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# end of PTP clock support

CONFIG_PINCTRL=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_CY8C95X0 is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_SX150X is not set

#
# Intel pinctrl drivers
#
# CONFIG_PINCTRL_BAYTRAIL is not set
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
# CONFIG_PINCTRL_ALDERLAKE is not set
# CONFIG_PINCTRL_BROXTON is not set
# CONFIG_PINCTRL_CANNONLAKE is not set
# CONFIG_PINCTRL_CEDARFORK is not set
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_METEORLAKE is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
# CONFIG_PINCTRL_TIGERLAKE is not set
# end of Intel pinctrl drivers

#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers

CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EXAR is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_ICH=m
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_LATCH is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

# CONFIG_W1 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_IP5XXX_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
# CONFIG_SENSORS_AD7314 is not set
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM1177 is not set
CONFIG_SENSORS_ADM9240=m
CONFIG_SENSORS_ADT7X10=m
# CONFIG_SENSORS_ADT7310 is not set
CONFIG_SENSORS_ADT7410=m
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
CONFIG_SENSORS_ASC7621=m
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
CONFIG_SENSORS_FAM15H_POWER=m
CONFIG_SENSORS_APPLESMC=m
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
# CONFIG_SENSORS_DELL_SMM is not set
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
# CONFIG_SENSORS_FTSTEUTATES is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_I5500=m
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=m
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
CONFIG_SENSORS_MAX16065=m
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX31760 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=m
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MC34VR500 is not set
CONFIG_SENSORS_MCP3021=m
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
CONFIG_SENSORS_LM63=m
# CONFIG_SENSORS_LM70 is not set
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775_CORE=m
CONFIG_SENSORS_NCT6775=m
# CONFIG_SENSORS_NCT6775_I2C is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
# CONFIG_SENSORS_OCC_P8_I2C is not set
# CONFIG_SENSORS_OXP is not set
CONFIG_SENSORS_PCF8591=m
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC2305 is not set
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=m
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
CONFIG_SENSORS_ADS7828=m
# CONFIG_SENSORS_ADS7871 is not set
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_TMP464 is not set
# CONFIG_SENSORS_TMP513 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
# CONFIG_SENSORS_W83773G is not set
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_XGENE is not set

#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
CONFIG_SENSORS_ATK0110=m
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_EC is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_ACPI=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_INTEL_TCC=y
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

CONFIG_INTEL_PCH_THERMAL=m
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_MENLOW is not set
# CONFIG_INTEL_HFI_THERMAL is not set
# end of Intel thermal drivers

CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
CONFIG_WDAT_WDT=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ADVANTECH_EC_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_EBC_C384_WDT is not set
# CONFIG_EXAR_WDT is not set
CONFIG_F71808E_WDT=m
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=m
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=y
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=y
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
CONFIG_NV_TCO=m
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
CONFIG_VIA_WDT=m
CONFIG_W83627HF_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
CONFIG_INTEL_MEI_WDT=m
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_SMPRO is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=m
CONFIG_MFD_INTEL_LPSS=y
CONFIG_MFD_INTEL_LPSS_ACPI=y
CONFIG_MFD_INTEL_LPSS_PCI=y
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6370 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_OCELOT is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_SY7636A is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TQMX86 is not set
CONFIG_MFD_VX855=m
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_INTEL_M10_BMC_SPI is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
CONFIG_RC_CORE=m
CONFIG_LIRC=y
CONFIG_RC_MAP=m
CONFIG_RC_DECODERS=y
CONFIG_IR_IMON_DECODER=m
CONFIG_IR_JVC_DECODER=m
CONFIG_IR_MCE_KBD_DECODER=m
CONFIG_IR_NEC_DECODER=m
CONFIG_IR_RC5_DECODER=m
CONFIG_IR_RC6_DECODER=m
# CONFIG_IR_RCMM_DECODER is not set
CONFIG_IR_SANYO_DECODER=m
# CONFIG_IR_SHARP_DECODER is not set
CONFIG_IR_SONY_DECODER=m
# CONFIG_IR_XMP_DECODER is not set
CONFIG_RC_DEVICES=y
CONFIG_IR_ENE=m
CONFIG_IR_FINTEK=m
# CONFIG_IR_IGORPLUGUSB is not set
# CONFIG_IR_IGUANA is not set
# CONFIG_IR_IMON is not set
# CONFIG_IR_IMON_RAW is not set
CONFIG_IR_ITE_CIR=m
# CONFIG_IR_MCEUSB is not set
CONFIG_IR_NUVOTON=m
# CONFIG_IR_REDRAT3 is not set
CONFIG_IR_SERIAL=m
CONFIG_IR_SERIAL_TRANSMITTER=y
# CONFIG_IR_STREAMZAP is not set
# CONFIG_IR_TOY is not set
# CONFIG_IR_TTUSBIR is not set
CONFIG_IR_WINBOND_CIR=m
# CONFIG_RC_ATI_REMOTE is not set
# CONFIG_RC_LOOPBACK is not set
# CONFIG_RC_XBOX_DVD is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
# CONFIG_MEDIA_PLATFORM_SUPPORT is not set
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#

#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
# end of Media drivers

CONFIG_MEDIA_HIDE_ANCILLARY_SUBDRV=y

#
# Media ancillary drivers
#
# end of Media ancillary drivers

#
# Graphics support
#
CONFIG_APERTURE_HELPERS=y
CONFIG_VIDEO_NOMODESET=y
# CONFIG_AGP is not set
CONFIG_INTEL_GTT=m
CONFIG_VGA_SWITCHEROO=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
CONFIG_DRM_DISPLAY_HELPER=m
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DISPLAY_HDCP_HELPER=y
CONFIG_DRM_DISPLAY_HDMI_HELPER=y
CONFIG_DRM_DP_AUX_CHARDEV=y
# CONFIG_DRM_DP_CEC is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_BUDDY=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips

#
# ARM devices
#
# end of ARM devices

# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
# CONFIG_DRM_I915_GVT_KVMGT is not set
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_PREEMPT_TIMEOUT_COMPUTE=7500
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
# CONFIG_DRM_MGAG200 is not set
CONFIG_DRM_QXL=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_AUO_A030JTN01 is not set
# CONFIG_DRM_PANEL_ORISETECH_OTA5601A is not set
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_GM12U320 is not set
# CONFIG_DRM_PANEL_MIPI_DBI is not set
# CONFIG_DRM_SIMPLEDRM is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_SSD130X is not set
# CONFIG_DRM_HYPERV is not set
# CONFIG_DRM_LEGACY is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_PRIVACY_SCREEN=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_MODE_HELPERS is not set
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SM501 is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
CONFIG_FB_HYPERV=m
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
CONFIG_LCD_PLATFORM=m
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
# CONFIG_LCD_OTM3225A is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_KTZ8866 is not set
# CONFIG_BACKLIGHT_PWM is not set
CONFIG_BACKLIGHT_APPLE=m
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_LP855X=m
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# end of Backlight & LCD device support

CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support

CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
# end of Graphics support

# CONFIG_DRM_ACCEL is not set
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACCUTOUCH is not set
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_APPLEIR is not set
CONFIG_HID_ASUS=m
CONFIG_HID_AUREAL=m
CONFIG_HID_BELKIN=m
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
CONFIG_HID_CHERRY=m
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
CONFIG_HID_CMEDIA=m
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
# CONFIG_HID_EVISION is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_FT260 is not set
CONFIG_HID_GEMBIRD=m
CONFIG_HID_GFRM=m
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=m
# CONFIG_HID_UCLOGIC is not set
CONFIG_HID_WALTOP=m
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_VRC2 is not set
# CONFIG_HID_XIAOMI is not set
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
CONFIG_HID_ITE=m
CONFIG_HID_JABRA=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LCPOWER=m
CONFIG_HID_LED=m
CONFIG_HID_LENOVO=m
# CONFIG_HID_LETSKETCH is not set
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_HID_LOGITECH_HIDPP=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MAGICMOUSE=y
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_MEGAWORLD_FF is not set
# CONFIG_HID_REDRAGON is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_NINTENDO is not set
CONFIG_HID_NTI=m
# CONFIG_HID_NTRIG is not set
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
# CONFIG_HID_PENMOUNT is not set
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_PICOLCD_CIR=y
CONFIG_HID_PLANTRONICS=m
# CONFIG_HID_PXRC is not set
# CONFIG_HID_RAZER is not set
CONFIG_HID_PRIMAX=m
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
CONFIG_HID_SAITEK=m
CONFIG_HID_SAMSUNG=m
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SIGMAMICRO is not set
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=m
# CONFIG_HID_STEAM is not set
CONFIG_HID_STEELSERIES=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_RMI=m
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_HYPERV_MOUSE=m
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TIVO=m
CONFIG_HID_TOPSEED=m
# CONFIG_HID_TOPRE is not set
CONFIG_HID_THINGM=m
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
CONFIG_HID_WIIMOTE=m
CONFIG_HID_XINMO=m
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=m
CONFIG_HID_ALPS=m
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers

#
# HID-BPF support
#
# CONFIG_HID_BPF is not set
# end of HID-BPF support

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
# end of USB HID support

CONFIG_I2C_HID=m
# CONFIG_I2C_HID_ACPI is not set

#
# Intel ISH HID support
#
# CONFIG_INTEL_ISH_HID is not set
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set
# end of AMD SFH HID Support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_MON=y

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=y
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=y
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set

#
# USB dual-mode controller drivers
#
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
CONFIG_TYPEC=y
# CONFIG_TYPEC_TCPM is not set
CONFIG_TYPEC_UCSI=y
# CONFIG_UCSI_CCG is not set
CONFIG_UCSI_ACPI=y
# CONFIG_UCSI_STM32G0 is not set
# CONFIG_TYPEC_TPS6598X is not set
# CONFIG_TYPEC_RT1719 is not set
# CONFIG_TYPEC_STUSB160X is not set
# CONFIG_TYPEC_WUSB3801 is not set

#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
# CONFIG_TYPEC_MUX_FSA4480 is not set
# CONFIG_TYPEC_MUX_GPIO_SBU is not set
# CONFIG_TYPEC_MUX_PI3USB30532 is not set
# end of USB Type-C Multiplexer/DeMultiplexer Switch support

#
# USB Type-C Alternate Mode drivers
#
# CONFIG_TYPEC_DP_ALTMODE is not set
# end of USB Type-C Alternate Mode drivers

# CONFIG_USB_ROLE_SWITCH is not set
CONFIG_MMC=m
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=m
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI_ACPI=m
CONFIG_MMC_SDHCI_PLTFM=m
# CONFIG_MMC_SDHCI_F_SDH30 is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_CQHCI=m
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MMC_SDHCI_XENON is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_APU is not set
CONFIG_LEDS_LM3530=m
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_INTEL_SS4200=m
CONFIG_LEDS_LT3593=m
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_IS31FL319X is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_MLXCPLD=m
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set

#
# Flash and Torch LED drivers
#

#
# RGB LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=m
# CONFIG_LEDS_TRIGGER_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
CONFIG_LEDS_TRIGGER_CAMERA=m
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=m
# CONFIG_LEDS_TRIGGER_TTY is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ON_DEMAND_PAGING=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS=y
CONFIG_INFINIBAND_VIRT_DMA=y
# CONFIG_INFINIBAND_EFA is not set
# CONFIG_INFINIBAND_ERDMA is not set
# CONFIG_MLX4_INFINIBAND is not set
# CONFIG_INFINIBAND_MTHCA is not set
# CONFIG_INFINIBAND_OCRDMA is not set
# CONFIG_INFINIBAND_USNIC is not set
# CONFIG_INFINIBAND_RDMAVT is not set
CONFIG_RDMA_RXE=m
CONFIG_RDMA_SIW=m
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
# CONFIG_INFINIBAND_ISER is not set
# CONFIG_INFINIBAND_RTRS_CLIENT is not set
# CONFIG_INFINIBAND_RTRS_SERVER is not set
# CONFIG_INFINIBAND_OPA_VNIC is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_GHES=y
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_IE31200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
CONFIG_EDAC_SBRIDGE=m
CONFIG_EDAC_SKX=m
# CONFIG_EDAC_I10NM is not set
CONFIG_EDAC_PND2=m
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_DS1307=m
# CONFIG_RTC_DRV_DS1307_CENTURY is not set
CONFIG_RTC_DRV_DS1374=m
# CONFIG_RTC_DRV_DS1374_WDT is not set
CONFIG_RTC_DRV_DS1672=m
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
CONFIG_RTC_DRV_ISL12022=m
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8523=m
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=m
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
# CONFIG_RTC_DRV_RX8010 is not set
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=m
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
CONFIG_RTC_DRV_RX4581=m
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=m
CONFIG_RTC_DRV_DS3232_HWMON=y
# CONFIG_RTC_DRV_PCF2127 is not set
CONFIG_RTC_DRV_RV3029C2=m
# CONFIG_RTC_DRV_RV3029_HWMON is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_DS2404=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_BQ4802=m
CONFIG_RTC_DRV_RP5C01=m

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_INTEL_IDMA64=m
CONFIG_INTEL_IDXD_BUS=m
CONFIG_INTEL_IDXD=m
# CONFIG_INTEL_IDXD_COMPAT is not set
# CONFIG_INTEL_IDXD_SVM is not set
# CONFIG_INTEL_IDXD_PERFMON is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_PLX_DMA is not set
# CONFIG_XILINX_XDMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=m
CONFIG_DW_DMAC_PCI=y
# CONFIG_DW_EDMA is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
CONFIG_DMATEST=m
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

CONFIG_DCA=m
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
# CONFIG_UIO is not set
CONFIG_VFIO=m
CONFIG_VFIO_CONTAINER=y
CONFIG_VFIO_IOMMU_TYPE1=m
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_VIRQFD=y
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=m
# CONFIG_VFIO_PCI_VGA is not set
# CONFIG_VFIO_PCI_IGD is not set
CONFIG_IRQ_BYPASS_MANAGER=m
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=m
# CONFIG_VIRTIO_MEM is not set
CONFIG_VIRTIO_INPUT=m
# CONFIG_VIRTIO_MMIO is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=m
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_HYPERV=y
CONFIG_HYPERV_TIMER=y
CONFIG_HYPERV_UTILS=m
CONFIG_HYPERV_BALLOON=m
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_HUAWEI_WMI is not set
# CONFIG_UV_SYSFS is not set
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_YOGABOOK_WMI is not set
CONFIG_ACERHDF=m
# CONFIG_ACER_WIRELESS is not set
CONFIG_ACER_WMI=m
# CONFIG_AMD_PMF is not set
# CONFIG_AMD_PMC is not set
# CONFIG_AMD_HSMP is not set
# CONFIG_ADV_SWBUTTON is not set
CONFIG_APPLE_GMUX=m
CONFIG_ASUS_LAPTOP=m
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ASUS_WMI=m
CONFIG_ASUS_NB_WMI=m
# CONFIG_ASUS_TF103C_DOCK is not set
# CONFIG_MERAKI_MX100 is not set
CONFIG_EEEPC_LAPTOP=m
CONFIG_EEEPC_WMI=m
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
CONFIG_AMILO_RFKILL=m
CONFIG_FUJITSU_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_X86_PLATFORM_DRIVERS_HP is not set
# CONFIG_WIRELESS_HOTKEY is not set
# CONFIG_IBM_RTL is not set
CONFIG_IDEAPAD_LAPTOP=m
CONFIG_SENSORS_HDAPS=m
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
# CONFIG_THINKPAD_LMI is not set
# CONFIG_INTEL_ATOMISP2_PM is not set
# CONFIG_INTEL_IFS is not set
# CONFIG_INTEL_SAR_INT1092 is not set
CONFIG_INTEL_PMC_CORE=m

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# end of Intel Speed Select Technology interface support

CONFIG_INTEL_WMI=y
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
CONFIG_INTEL_WMI_THUNDERBOLT=m

#
# Intel Uncore Frequency Control
#
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
# end of Intel Uncore Frequency Control

CONFIG_INTEL_HID_EVENT=m
CONFIG_INTEL_VBTN=m
# CONFIG_INTEL_INT0002_VGPIO is not set
CONFIG_INTEL_OAKTRAIL=m
# CONFIG_INTEL_PUNIT_IPC is not set
CONFIG_INTEL_RST=m
# CONFIG_INTEL_SMARTCONNECT is not set
CONFIG_INTEL_TURBO_MAX_3=y
# CONFIG_INTEL_VSEC is not set
CONFIG_MSI_LAPTOP=m
CONFIG_MSI_WMI=m
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_SAMSUNG_Q10=m
CONFIG_TOSHIBA_BT_RFKILL=m
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
CONFIG_ACPI_CMPC=m
CONFIG_COMPAL_LAPTOP=m
# CONFIG_LG_LAPTOP is not set
CONFIG_PANASONIC_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_SYSTEM76_ACPI is not set
CONFIG_TOPSTAR_LAPTOP=m
# CONFIG_SERIAL_MULTI_INSTANTIATE is not set
CONFIG_MLX_PLATFORM=m
CONFIG_INTEL_IPS=m
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
# CONFIG_WINMATE_FM07_KEYS is not set
CONFIG_P2SB=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_SVA=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
CONFIG_INTEL_IOMMU_SVM=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y
CONFIG_INTEL_IOMMU_PERF_EVENTS=y
# CONFIG_IOMMUFD is not set
CONFIG_IRQ_REMAP=y
CONFIG_HYPERV_IOMMU=y
# CONFIG_VIRTIO_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers

# CONFIG_WPCM450_SOC is not set

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
CONFIG_NTB=m
# CONFIG_NTB_MSI is not set
# CONFIG_NTB_AMD is not set
# CONFIG_NTB_IDT is not set
# CONFIG_NTB_INTEL is not set
# CONFIG_NTB_EPF is not set
# CONFIG_NTB_SWITCHTEC is not set
# CONFIG_NTB_PINGPONG is not set
# CONFIG_NTB_TOOL is not set
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_TRANSPORT is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_CLK is not set
# CONFIG_PWM_DWC is not set
CONFIG_PWM_LPSS=m
CONFIG_PWM_LPSS_PCI=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set

#
# IRQ chip support
#
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL_CORE=m
CONFIG_INTEL_RAPL=m
CONFIG_IDLE_INJECT=y
# CONFIG_MCB is not set

#
# Performance monitor support
#
# end of Performance monitor support

CONFIG_RAS=y
# CONFIG_RAS_CEC is not set
# CONFIG_USB4 is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
CONFIG_ND_PFN=m
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_NVDIMM_KEYS=y
# CONFIG_NVDIMM_SECURITY_TEST is not set
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_DEV_DAX_PMEM=m
CONFIG_DEV_DAX_KMEM=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
CONFIG_INTEL_TH=m
CONFIG_INTEL_TH_PCI=m
CONFIG_INTEL_TH_ACPI=m
CONFIG_INTEL_TH_GTH=m
CONFIG_INTEL_TH_MSU=m
CONFIG_INTEL_TH_PTI=m
# CONFIG_INTEL_TH_DEBUG is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
CONFIG_LEGACY_DIRECT_IO=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_SUPPORT_V4=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_XFS_ONLINE_SCRUB=y
CONFIG_XFS_ONLINE_REPAIR=y
CONFIG_XFS_DEBUG=y
CONFIG_XFS_ASSERT_FATAL=y
# CONFIG_GFS2_FS is not set
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
# CONFIG_NILFS2_FS is not set
CONFIG_F2FS_FS=m
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
CONFIG_F2FS_FS_SECURITY=y
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_FAULT_INJECTION is not set
# CONFIG_F2FS_FS_COMPRESSION is not set
CONFIG_F2FS_IOSTAT=y
# CONFIG_F2FS_UNFAIR_RWSEM is not set
# CONFIG_ZONEFS_FS is not set
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_ALGS=y
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
# CONFIG_VIRTIO_FS is not set
CONFIG_OVERLAY_FS=m
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
# CONFIG_OVERLAY_FS_METACOPY is not set

#
# Caches
#
CONFIG_NETFS_SUPPORT=y
# CONFIG_NETFS_STATS is not set
# CONFIG_FSCACHE is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
CONFIG_UDF_FS=m
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_FAT_DEFAULT_UTF8 is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_VMCORE_DEVICE_DUMP=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
# CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON is not set
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=m
CONFIG_CRAMFS_BLOCKDEV=y
CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set
CONFIG_SQUASHFS_COMPILE_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU is not set
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_ZSTD is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_DEFLATE_COMPRESS=y
# CONFIG_PSTORE_LZO_COMPRESS is not set
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
# CONFIG_PSTORE_842_COMPRESS is not set
# CONFIG_PSTORE_ZSTD_COMPRESS is not set
CONFIG_PSTORE_COMPRESS=y
CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
# CONFIG_PSTORE_BLK is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFSD=m
# CONFIG_NFSD_V2 is not set
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
# CONFIG_NFSD_BLOCKLAYOUT is not set
CONFIG_NFSD_SCSILAYOUT=y
# CONFIG_NFSD_FLEXFILELAYOUT is not set
# CONFIG_NFSD_V4_2_INTER_SSC is not set
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_KRB5_CRYPTOSYSTEM=y
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_DES is not set
CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA1=y
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_CAMELLIA is not set
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA2 is not set
CONFIG_SUNRPC_DEBUG=y
# CONFIG_SUNRPC_XPRT_RDMA is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS2=y
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SWN_UPCALL is not set
# CONFIG_CIFS_SMB_DIRECT is not set
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_9P_FS=y
CONFIG_9P_FS_POSIX_ACL=y
# CONFIG_9P_FS_SECURITY is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
CONFIG_NLS_MAC_CROATIAN=m
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_TRUSTED_KEYS=y
CONFIG_TRUSTED_KEYS_TPM=y
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_USER_DECRYPTED_DATA is not set
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_INFINIBAND is not set
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_INTEL_TXT=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
# CONFIG_STATIC_USERMODEHELPER is not set
# CONFIG_SECURITY_SELINUX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
CONFIG_SECURITY_YAMA=y
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_TRUSTED_KEYRING=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_IMA is not set
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set
# CONFIG_GCC_PLUGIN_STACKLEAK is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# CONFIG_RANDSTRUCT_PERFORMANCE is not set
# end of Kernel hardening options
# end of Security options

CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=m
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
CONFIG_CRYPTO_ANUBIS=m
# CONFIG_CRYPTO_ARIA is not set
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
# CONFIG_CRYPTO_SM4_GENERIC is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_HCTR2 is not set
# CONFIG_CRYPTO_KEYWRAP is not set
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m
CONFIG_CRYPTO_ESSIV=m
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
CONFIG_CRYPTO_BLAKE2B=m
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_POLY1305 is not set
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=m
# CONFIG_CRYPTO_SM3_GENERIC is not set
# CONFIG_CRYPTO_STREEBOG is not set
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_XXHASH=m
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRC64_ROCKSOFT=m
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set
# end of Compression

#
# Random number generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# end of Random number generation

#
# Userspace interface
#
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# CONFIG_CRYPTO_STATS is not set
# end of Userspace interface

CONFIG_CRYPTO_HASH_INFO=y

#
# Accelerated Cryptographic Algorithms for CPU (x86)
#
# CONFIG_CRYPTO_CURVE25519_X86 is not set
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_BLOWFISH_X86_64=m
CONFIG_CRYPTO_CAMELLIA_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=m
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6_AVX_X86_64=m
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=m
# CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_TWOFISH_X86_64=m
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=m
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=m
# CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_ARIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_ARIA_GFNI_AVX512_X86_64 is not set
CONFIG_CRYPTO_CHACHA20_X86_64=m
# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_AVX2 is not set
# CONFIG_CRYPTO_BLAKE2S_X86 is not set
# CONFIG_CRYPTO_POLYVAL_CLMUL_NI is not set
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=m
# CONFIG_CRYPTO_SM3_AVX_X86_64 is not set
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_CRC32_PCLMUL=m
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
# end of Accelerated Cryptographic Algorithms for CPU (x86)

# CONFIG_CRYPTO_HW is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
CONFIG_SIGNED_PE_FILE_VERIFICATION=y
# CONFIG_FIPS_SIGNATURE_SELFTEST is not set

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# CONFIG_SYSTEM_REVOCATION_LIST is not set
# CONFIG_SYSTEM_BLACKLIST_AUTH_UPDATE is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=m
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_GF128MUL=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA=m
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC64_ROCKSOFT=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC64=m
# CONFIG_CRC4 is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_ENC8=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_HAS_FORCE_DMA_UNENCRYPTED=y
CONFIG_SWIOTLB=y
CONFIG_DMA_CMA=y
# CONFIG_DMA_PERNUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=200
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_DIMLIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_MEMREGION=y
CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_ALWAYS_INIT=y
CONFIG_SBITMAP=y
# end of Library routines

CONFIG_ASN1_ENCODER=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_AS_HAS_NON_CONST_LEB128=y
# CONFIG_DEBUG_INFO_NONE is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_DEBUG_INFO_REDUCED=y
CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=8192
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_OBJTOOL=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_TRAP is not set
CONFIG_CC_HAS_UBSAN_BOUNDS=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_ONLY_BOUNDS=y
CONFIG_UBSAN_SHIFT=y
# CONFIG_UBSAN_DIV_ZERO is not set
# CONFIG_UBSAN_BOOL is not set
# CONFIG_UBSAN_ENUM is not set
# CONFIG_UBSAN_ALIGNMENT is not set
CONFIG_UBSAN_SANITIZE_ALL=y
# CONFIG_TEST_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# CONFIG_DEBUG_NET is not set
# end of Networking Debugging

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
CONFIG_PAGE_OWNER=y
# CONFIG_PAGE_TABLE_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SHRINKER_DEBUG is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_KASAN=y
CONFIG_KASAN_GENERIC=y
# CONFIG_KASAN_OUTLINE is not set
CONFIG_KASAN_INLINE=y
CONFIG_KASAN_STACK=y
CONFIG_KASAN_VMALLOC=y
# CONFIG_KASAN_MODULE_TEST is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
CONFIG_HAVE_ARCH_KMSAN=y
# end of Memory Debugging

CONFIG_DEBUG_SHIRQ=y

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# CONFIG_CSD_LOCK_WAIT_DEBUG is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_NMI_CHECK_CPU is not set
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
CONFIG_TORTURE_TEST=m
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_REF_SCALE_TEST=m
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
# CONFIG_RCU_CPU_STALL_CPUTIME is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
# CONFIG_DEBUG_CGROUP_REF is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_RETHOOK=y
CONFIG_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_OBJTOOL_NOP_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_DYNAMIC_FTRACE_WITH_ARGS=y
# CONFIG_FPROBE is not set
CONFIG_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_HWLAT_TRACER=y
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_MMIOTRACE is not set
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
CONFIG_KPROBE_EVENTS=y
# CONFIG_KPROBE_EVENTS_ON_NOTRACE is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_CC=y
CONFIG_TRACING_MAP=y
CONFIG_SYNTH_EVENTS=y
CONFIG_HIST_TRIGGERS=y
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_RECORD_RECURSION is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_FTRACE_SORT_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_SYNTH_EVENT_GEN_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_HIST_TRIGGERS_DEBUG is not set
# CONFIG_RV is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
# CONFIG_EFI_PGT_DUMP is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAULT_INJECTION_USERCOPY is not set
CONFIG_FAIL_MAKE_REQUEST=y
# CONFIG_FAIL_IO_TIMEOUT is not set
# CONFIG_FAIL_FUTEX is not set
CONFIG_FAULT_INJECTION_DEBUG_FS=y
# CONFIG_FAIL_FUNCTION is not set
# CONFIG_FAIL_MMC_REQUEST is not set
# CONFIG_FAIL_SUNRPC is not set
# CONFIG_FAULT_INJECTION_STACKTRACE_FILTER is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_TEST_DHRY is not set
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_MAPLE_TREE is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
CONFIG_TEST_BPF=m
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_DYNAMIC_DEBUG is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_LIVEPATCH is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_HMM is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_FPU is not set
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# CONFIG_HYPERV_TESTING is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 5546 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='xfstests'
	export testcase='xfstests'
	export category='functional'
	export need_memory='2G'
	export job_origin='xfstests-generic-part3.yaml'
	export queue_cmdline_keys='branch
commit'
	export queue='bisect'
	export testbox='lkp-skl-d02'
	export tbox_group='lkp-skl-d02'
	export submit_id='644b34ed53cd876a36349c75'
	export job_file='/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml'
	export id='433a831da35de91dc26d3e016aac2713b19e0690'
	export queuer_version='/zday/lkp'
	export model='Skylake'
	export nr_cpu=4
	export memory='32G'
	export nr_ssd_partitions=1
	export nr_hdd_partitions=4
	export hdd_partitions='/dev/disk/by-id/wwn-0x5000c500746fa0cc-part*'
	export ssd_partitions='/dev/disk/by-id/wwn-0x55cd2e41514d5105-part2'
	export rootfs_partition='/dev/disk/by-id/wwn-0x55cd2e41514d5105-part1'
	export brand='Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz'
	export need_kconfig='BLK_DEV_SD
SCSI
{"BLOCK"=>"y"}
SATA_AHCI
SATA_AHCI_PLATFORM
ATA
{"PCI"=>"y"}
XFS_FS'
	export commit='8bd0744b438be1722c5f8c1fe077e9dcef0e81b7'
	export need_kconfig_hw='{"PTP_1588_CLOCK"=>"y"}
{"E1000E"=>"y"}
SATA_AHCI
DRM_I915'
	export ucode='0xf0'
	export kconfig='x86_64-rhel-8.3-func'
	export enqueue_time='2023-04-28 10:52:30 +0800'
	export _id='644b34ed53cd876a36349c75'
	export _rt='/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7'
	export user='lkp'
	export compiler='gcc-11'
	export LKP_SERVER='internal-lkp-server'
	export head_commit='f88162429084650ed3c74c73197e028d907df4f6'
	export base_commit='457391b0380335d5e9a5babdec90ac53928b23b4'
	export branch='linux-devel/devel-hourly-20230424-212742'
	export rootfs='debian-11.1-x86_64-20220510.cgz'
	export result_root='/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0'
	export scheduler_version='/lkp/lkp/src'
	export arch='x86_64'
	export max_uptime=1200
	export initrd='/osimage/debian/debian-11.1-x86_64-20220510.cgz'
	export bootloader_append='root=/dev/ram0
RESULT_ROOT=/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0
BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b
branch=linux-devel/devel-hourly-20230424-212742
job=/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-8.3-func
commit=8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
initcall_debug
nmi_watchdog=0
max_uptime=1200
LKP_SERVER=internal-lkp-server
nokaslr
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/modules.cgz'
	export bm_initrd='/osimage/deps/debian-11.1-x86_64-20220510.cgz/run-ipconfig_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/lkp_20220513.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/rsync-rootfs_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/fs_20220526.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/xfstests_20230410.cgz,/osimage/pkg/debian-11.1-x86_64-20220510.cgz/xfstests-x86_64-a7df89e-1_20230410.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/hw_20220526.cgz'
	export ucode_initrd='/osimage/ucode/intel-ucode-20230406.cgz'
	export lkp_initrd='/osimage/user/lkp/lkp-x86_64.cgz'
	export site='lkp-wsx01'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export last_kernel='6.3.0'
	export schedule_notify_address=
	export kernel='/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b'
	export dequeue_time='2023-04-28 11:18:59 +0800'
	export job_initrd='/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_setup nr_hdd=4 $LKP_SRC/setup/disk

	run_setup fs='xfs' $LKP_SRC/setup/fs

	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper heartbeat
	run_monitor $LKP_SRC/monitors/wrapper meminfo
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test test='generic-group-17' $LKP_SRC/tests/wrapper xfstests
}

extract_stats()
{
	export stats_part_begin=
	export stats_part_end=

	env test='generic-group-17' $LKP_SRC/stats/wrapper xfstests
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper meminfo

	$LKP_SRC/stats/wrapper time xfstests.time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper last_state
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper time
}

"$@"

[-- Attachment #4: kmsg.xz --]
[-- Type: application/x-xz, Size: 43488 bytes --]

[-- Attachment #5: xfstests --]
[-- Type: text/plain, Size: 2270 bytes --]

2023-04-28 03:20:22 export TEST_DIR=/fs/sda1
2023-04-28 03:20:22 export TEST_DEV=/dev/sda1
2023-04-28 03:20:22 export FSTYP=xfs
2023-04-28 03:20:22 export SCRATCH_MNT=/fs/scratch
2023-04-28 03:20:22 mkdir /fs/scratch -p
2023-04-28 03:20:22 export SCRATCH_DEV=/dev/sda4
2023-04-28 03:20:22 export SCRATCH_LOGDEV=/dev/sda2
2023-04-28 03:20:22 sed "s:^:generic/:" //lkp/benchmarks/xfstests/tests/generic-group-17
2023-04-28 03:20:22 ./check generic/340 generic/341 generic/342 generic/343 generic/344 generic/345 generic/346 generic/347 generic/348 generic/349 generic/350 generic/351 generic/352 generic/353 generic/354 generic/355 generic/356 generic/357 generic/358 generic/359
FSTYP         -- xfs (debug)
PLATFORM      -- Linux/x86_64 lkp-skl-d02 6.3.0-rc4-00043-g8bd0744b438b #1 SMP Fri Apr 28 11:08:50 CST 2023
MKFS_OPTIONS  -- -f /dev/sda4
MOUNT_OPTIONS -- /dev/sda4 /fs/scratch

generic/340        5s
generic/341        5s
generic/342        4s
generic/343        5s
generic/344        7s
generic/345        6s
generic/346        5s
generic/347        91s
generic/348        4s
generic/349        2s
generic/350        2s
generic/351       - output mismatch (see /lkp/benchmarks/xfstests/results//generic/351.out.bad)
    --- tests/generic/351.out	2023-04-10 17:18:19.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//generic/351.out.bad	2023-04-28 03:22:46.227470830 +0000
    @@ -25,7 +25,7 @@
     Destroy device
     Create w/o unmap or writesame and format
     Zero punch, no fallback available
    -fallocate: Operation not supported
    +fallocate: No such file or directory
     Zero range, write fallback
     Check contents
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/351.out /lkp/benchmarks/xfstests/results//generic/351.out.bad'  to see the entire diff)
generic/352        117s
generic/353        7s
generic/354        6s
generic/355        2s
generic/356        8s
generic/357        8s
generic/358        37s
generic/359        7s
Ran: generic/340 generic/341 generic/342 generic/343 generic/344 generic/345 generic/346 generic/347 generic/348 generic/349 generic/350 generic/351 generic/352 generic/353 generic/354 generic/355 generic/356 generic/357 generic/358 generic/359
Failures: generic/351
Failed 1 of 20 tests


[-- Attachment #6: job.yaml --]
[-- Type: text/plain, Size: 4918 bytes --]

---

#! jobs/xfstests-generic-part3.yaml
suite: xfstests
testcase: xfstests
category: functional
need_memory: 2G
disk: 4HDD
fs: xfs
xfstests:
  test: generic-group-17
job_origin: xfstests-generic-part3.yaml

#! queue options
queue_cmdline_keys:
- branch
- commit
queue: bisect
testbox: lkp-skl-d02
tbox_group: lkp-skl-d02
submit_id: 644b34ed53cd876a36349c75
job_file: "/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml"
id: 433a831da35de91dc26d3e016aac2713b19e0690
queuer_version: "/zday/lkp"

#! /db/releases/20230410100009/lkp-src/hosts/lkp-skl-d02
model: Skylake
nr_cpu: 4
memory: 32G
nr_ssd_partitions: 1
nr_hdd_partitions: 4
hdd_partitions: "/dev/disk/by-id/wwn-0x5000c500746fa0cc-part*"
ssd_partitions: "/dev/disk/by-id/wwn-0x55cd2e41514d5105-part2"
rootfs_partition: "/dev/disk/by-id/wwn-0x55cd2e41514d5105-part1"
brand: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz

#! /db/releases/20230410100009/lkp-src/include/category/functional
kmsg:
heartbeat:
meminfo:

#! /db/releases/20230410100009/lkp-src/include/disk/nr_hdd
need_kconfig:
- BLK_DEV_SD
- SCSI
- BLOCK: y
- SATA_AHCI
- SATA_AHCI_PLATFORM
- ATA
- PCI: y
- XFS_FS

#! /db/releases/20230410100009/lkp-src/include/queue/cyclic
commit: 8bd0744b438be1722c5f8c1fe077e9dcef0e81b7

#! /db/releases/20230410100009/lkp-src/include/testbox/lkp-skl-d02
need_kconfig_hw:
- PTP_1588_CLOCK: y
- E1000E: y
- SATA_AHCI
- DRM_I915
ucode: '0xf0'

#! /db/releases/20230410100009/lkp-src/include/fs/OTHERS
kconfig: x86_64-rhel-8.3-func
enqueue_time: 2023-04-28 10:52:30.247399087 +08:00
_id: 644b34ed53cd876a36349c75
_rt: "/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7"

#! schedule options
user: lkp
compiler: gcc-11
LKP_SERVER: internal-lkp-server
head_commit: f88162429084650ed3c74c73197e028d907df4f6
base_commit: 457391b0380335d5e9a5babdec90ac53928b23b4
branch: linux-devel/devel-hourly-20230424-212742
rootfs: debian-11.1-x86_64-20220510.cgz
result_root: "/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0"
scheduler_version: "/lkp/lkp/src"
arch: x86_64
max_uptime: 1200
initrd: "/osimage/debian/debian-11.1-x86_64-20220510.cgz"
bootloader_append:
- root=/dev/ram0
- RESULT_ROOT=/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0
- BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b
- branch=linux-devel/devel-hourly-20230424-212742
- job=/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml
- user=lkp
- ARCH=x86_64
- kconfig=x86_64-rhel-8.3-func
- commit=8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
- initcall_debug
- nmi_watchdog=0
- max_uptime=1200
- LKP_SERVER=internal-lkp-server
- nokaslr
- selinux=0
- debug
- apic=debug
- sysrq_always_enabled
- rcupdate.rcu_cpu_stall_timeout=100
- net.ifnames=0
- printk.devkmsg=on
- panic=-1
- softlockup_panic=1
- nmi_watchdog=panic
- oops=panic
- load_ramdisk=2
- prompt_ramdisk=0
- drbd.minor_count=8
- systemd.log_level=err
- ignore_loglevel
- console=tty0
- earlyprintk=ttyS0,115200
- console=ttyS0,115200
- vga=normal
- rw

#! runtime status
modules_initrd: "/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/modules.cgz"
bm_initrd: "/osimage/deps/debian-11.1-x86_64-20220510.cgz/run-ipconfig_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/lkp_20220513.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/rsync-rootfs_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/fs_20220526.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/xfstests_20230410.cgz,/osimage/pkg/debian-11.1-x86_64-20220510.cgz/xfstests-x86_64-a7df89e-1_20230410.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/hw_20220526.cgz"
ucode_initrd: "/osimage/ucode/intel-ucode-20230406.cgz"
lkp_initrd: "/osimage/user/lkp/lkp-x86_64.cgz"
site: lkp-wsx01

#! /db/releases/20230425102624/lkp-src/include/site/lkp-wsx01
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
oom-killer:
watchdog:
last_kernel: 6.3.0-rc4-00042-g38d11da522aa
schedule_notify_address:

#! user overrides
kernel: "/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b"
dequeue_time: 2023-04-28 11:18:59.040156964 +08:00

#! /db/releases/20230427211347/lkp-src/include/site/lkp-wsx01
job_state: finished
loadavg: 2.97 1.41 0.66 1/145 35640
start_time: '1682652022'
end_time: '1682652359'
version: "/lkp/lkp/.src-20230427-110942:7223d8995176:4ad6dc681a48"

[-- Attachment #7: reproduce --]
[-- Type: text/plain, Size: 1034 bytes --]

dmsetup remove_all
wipefs -a --force /dev/sda1
wipefs -a --force /dev/sda2
wipefs -a --force /dev/sda3
wipefs -a --force /dev/sda4
mkfs -t xfs -f -mreflink=0 /dev/sda1
mkfs -t xfs -f -mreflink=0 /dev/sda3
mkfs -t xfs -f -mreflink=0 /dev/sda4
mkfs -t xfs -f -mreflink=0 /dev/sda2
mkdir -p /fs/sda1
modprobe xfs
mount -t xfs -o inode64 /dev/sda1 /fs/sda1
mkdir -p /fs/sda2
mount -t xfs -o inode64 /dev/sda2 /fs/sda2
mkdir -p /fs/sda3
mount -t xfs -o inode64 /dev/sda3 /fs/sda3
mkdir -p /fs/sda4
mount -t xfs -o inode64 /dev/sda4 /fs/sda4
export TEST_DIR=/fs/sda1
export TEST_DEV=/dev/sda1
export FSTYP=xfs
export SCRATCH_MNT=/fs/scratch
mkdir /fs/scratch -p
export SCRATCH_DEV=/dev/sda4
export SCRATCH_LOGDEV=/dev/sda2
sed "s:^:generic/:" //lkp/benchmarks/xfstests/tests/generic-group-17
./check generic/340 generic/341 generic/342 generic/343 generic/344 generic/345 generic/346 generic/347 generic/348 generic/349 generic/350 generic/351 generic/352 generic/353 generic/354 generic/355 generic/356 generic/357 generic/358 generic/359

[-- Attachment #8: Type: text/plain, Size: 98 bytes --]

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 2726 bytes --]

Hello,

kernel test robot noticed "xfstests.generic.351.fail" on:

commit: 8bd0744b438be1722c5f8c1fe077e9dcef0e81b7 ("[PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes")
url: https://github.com/intel-lab-lkp/linux/commits/Sarthak-Kukreti/block-Introduce-provisioning-primitives/20230420-095025
base: https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git for-next
patch link: https://lore.kernel.org/all/20230420004850.297045-2-sarthakkukreti@chromium.org/
patch subject: [PATCH v5 1/5] block: Don't invalidate pagecache for invalid falloc modes

in testcase: xfstests
version: xfstests-x86_64-a7df89e-1_20230410
with following parameters:

	disk: 4HDD
	fs: xfs
	test: generic-group-17

compiler: gcc-11
test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <yujie.liu@intel.com>
| Link: https://lore.kernel.org/oe-lkp/202305041600.1633e4ac-yujie.liu@intel.com


generic/351       - output mismatch (see /lkp/benchmarks/xfstests/results//generic/351.out.bad)
    --- tests/generic/351.out	2023-04-10 17:18:19.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//generic/351.out.bad	2023-04-28 03:22:46.227470830 +0000
    @@ -25,7 +25,7 @@
     Destroy device
     Create w/o unmap or writesame and format
     Zero punch, no fallback available
    -fallocate: Operation not supported
    +fallocate: No such file or directory
     Zero range, write fallback
     Check contents
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/351.out /lkp/benchmarks/xfstests/results//generic/351.out.bad'  to see the entire diff)


QA output created by 351
Create and format
Regular fallocate
fallocate: Operation not supported
Insert range
fallocate: Operation not supported
Collapse range
fallocate: Operation not supported
Unaligned zero range
fallocate: Invalid argument
Unaligned punch
fallocate: Invalid argument
Zero range past MAX_LFS_FILESIZE keep size
fallocate: File too large
Zero range past MAX_LFS_FILESIZE
fallocate: File too large
Zero range to MAX_LFS_FILESIZE fail w/o keepsize
fallocate: Invalid argument
Zero range starts past EOD
fallocate: Invalid argument
Punch starts past EOD
fallocate: Invalid argument
Check contents
b83f9394092e15bdcda585cd8e776dc6  SCSI_DEBUG_DEV
Destroy device
Create w/o unmap or writesame and format
Zero punch, no fallback available
fallocate: No such file or directory
Zero range, write fallback
Check contents
0fc6bc93cd0cd97e3cde5ea39ea1185d  SCSI_DEBUG_DEV
Destroy device


-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

[-- Attachment #2: config-6.3.0-rc4-00043-g8bd0744b438b --]
[-- Type: text/plain, Size: 161800 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 6.3.0-rc4 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-12) 11.3.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110300
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=24000
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=24000
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=125
CONFIG_CONSTRUCTORS=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYSVIPC_COMPAT=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
CONFIG_AUDIT=y
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
CONFIG_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_GENERIC_IRQ_INJECTION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_CONTEXT_TRACKING=y
CONFIG_CONTEXT_TRACKING_IDLE=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ_FULL=y
CONFIG_CONTEXT_TRACKING_USER=y
# CONFIG_CONTEXT_TRACKING_USER_FORCE is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=125
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_BPF_JIT_ALWAYS_ON=y
CONFIG_BPF_JIT_DEFAULT_ON=y
CONFIG_BPF_UNPRIV_DEFAULT_OFF=y
# CONFIG_BPF_PRELOAD is not set
# CONFIG_BPF_LSM is not set
# end of BPF subsystem

CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_PREEMPT_DYNAMIC is not set
# CONFIG_SCHED_CORE is not set

#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_SCHED_AVG_IRQ=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_FORCE_TASKS_RCU=y
CONFIG_TASKS_RCU=y
# CONFIG_FORCE_TASKS_RUDE_RCU is not set
CONFIG_TASKS_RUDE_RCU=y
CONFIG_FORCE_TASKS_TRACE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
CONFIG_RCU_NOCB_CPU=y
# CONFIG_RCU_NOCB_CPU_DEFAULT_ALL is not set
# CONFIG_TASKS_TRACE_RCU_READ_MB is not set
# CONFIG_RCU_LAZY is not set
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=20
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC11_NO_ARRAY_BOUNDS=y
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_NUMA_BALANCING=y
CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y
CONFIG_CGROUPS=y
CONFIG_PAGE_COUNTER=y
# CONFIG_CGROUP_FAVOR_DYNMODS is not set
CONFIG_MEMCG=y
CONFIG_MEMCG_KMEM=y
CONFIG_BLK_CGROUP=y
CONFIG_CGROUP_WRITEBACK=y
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_SCHED_MM_CID=y
CONFIG_CGROUP_PIDS=y
CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
# CONFIG_CGROUP_BPF is not set
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_TIME_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_INITRAMFS_PRESERVE_MTIME=y
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_GUEST_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_SYSTEM_DATA_VERIFICATION=y
CONFIG_PROFILING=y
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_CSUM=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_AUDIT_ARCH=y
CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DYNAMIC_PHYSICAL_MASK=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_X2APIC=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
# CONFIG_X86_CPU_RESCTRL is not set
CONFIG_X86_EXTENDED_PLATFORM=y
# CONFIG_X86_NUMACHIP is not set
# CONFIG_X86_VSMP is not set
CONFIG_X86_UV=y
# CONFIG_X86_GOLDFISH is not set
# CONFIG_X86_INTEL_MID is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
CONFIG_IOSF_MBI=y
# CONFIG_IOSF_MBI_DEBUG is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
# CONFIG_PARAVIRT_DEBUG is not set
CONFIG_PARAVIRT_SPINLOCKS=y
CONFIG_X86_HV_CALLBACK_VECTOR=y
# CONFIG_XEN is not set
CONFIG_KVM_GUEST=y
CONFIG_ARCH_CPUIDLE_HALTPOLL=y
# CONFIG_PVH is not set
CONFIG_PARAVIRT_TIME_ACCOUNTING=y
CONFIG_PARAVIRT_CLOCK=y
# CONFIG_JAILHOUSE_GUEST is not set
# CONFIG_ACRN_GUEST is not set
CONFIG_INTEL_TDX_GUEST=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_GART_IOMMU is not set
CONFIG_BOOT_VESA_SUPPORT=y
CONFIG_MAXSMP=y
CONFIG_NR_CPUS_RANGE_BEGIN=8192
CONFIG_NR_CPUS_RANGE_END=8192
CONFIG_NR_CPUS_DEFAULT=8192
CONFIG_NR_CPUS=8192
CONFIG_SCHED_CLUSTER=y
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_MC_PRIO=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCELOG_LEGACY=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_THRESHOLD=y
CONFIG_X86_MCE_INJECT=m

#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=m
CONFIG_PERF_EVENTS_INTEL_RAPL=m
CONFIG_PERF_EVENTS_INTEL_CSTATE=m
# CONFIG_PERF_EVENTS_AMD_POWER is not set
# CONFIG_PERF_EVENTS_AMD_UNCORE is not set
# CONFIG_PERF_EVENTS_AMD_BRS is not set
# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
CONFIG_X86_IOPL_IOPERM=y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_LATE_LOADING=y
CONFIG_X86_MSR=m
CONFIG_X86_CPUID=y
CONFIG_X86_5LEVEL=y
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_X86_CPA_STATISTICS is not set
CONFIG_X86_MEM_ENCRYPT=y
# CONFIG_AMD_MEM_ENCRYPT is not set
CONFIG_NUMA=y
# CONFIG_AMD_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
CONFIG_NUMA_EMU=y
CONFIG_NODES_SHIFT=10
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
# CONFIG_ARCH_MEMORY_PROBE is not set
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_X86_PMEM_LEGACY_DEVICE=y
CONFIG_X86_PMEM_LEGACY=m
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=1
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
CONFIG_X86_KERNEL_IBT=y
CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS=y
# CONFIG_X86_INTEL_TSX_MODE_OFF is not set
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
CONFIG_X86_INTEL_TSX_MODE_AUTO=y
# CONFIG_X86_SGX is not set
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_HANDOVER_PROTOCOL=y
CONFIG_EFI_MIXED=y
# CONFIG_EFI_FAKE_MEMMAP is not set
CONFIG_EFI_RUNTIME_MAP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_KEXEC_FILE=y
CONFIG_ARCH_HAS_KEXEC_PURGATORY=y
# CONFIG_KEXEC_SIG is not set
CONFIG_CRASH_DUMP=y
CONFIG_KEXEC_JUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_DYNAMIC_MEMORY_LAYOUT=y
CONFIG_HOTPLUG_CPU=y
CONFIG_BOOTPARAM_HOTPLUG_CPU0=y
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_COMPAT_VDSO is not set
CONFIG_LEGACY_VSYSCALL_XONLY=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y
# end of Processor type and features

CONFIG_CC_HAS_SLS=y
CONFIG_CC_HAS_RETURN_THUNK=y
CONFIG_CC_HAS_ENTRY_PADDING=y
CONFIG_FUNCTION_PADDING_CFI=11
CONFIG_FUNCTION_PADDING_BYTES=16
CONFIG_SPECULATION_MITIGATIONS=y
CONFIG_PAGE_TABLE_ISOLATION=y
# CONFIG_RETPOLINE is not set
CONFIG_CPU_IBPB_ENTRY=y
CONFIG_CPU_IBRS_ENTRY=y
# CONFIG_SLS is not set
CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_HIBERNATION_SNAPSHOT_DEV=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_USERSPACE_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
# CONFIG_PM_ADVANCED_DEBUG is not set
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_PM_TRACE_RTC is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SPCR_TABLE=y
# CONFIG_ACPI_FPDT is not set
CONFIG_ACPI_LPIT=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y
CONFIG_ACPI_EC_DEBUGFS=m
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_TAD=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_CPPC_LIB=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_PLATFORM_PROFILE=m
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
CONFIG_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
CONFIG_ACPI_SBS=m
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
CONFIG_ACPI_NFIT=m
# CONFIG_NFIT_SECURITY_DEBUG is not set
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_HMAT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
CONFIG_ACPI_APEI_EINJ=m
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_DPTF is not set
CONFIG_ACPI_WATCHDOG=y
CONFIG_ACPI_EXTLOG=m
CONFIG_ACPI_ADXL=y
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_ACPI_PFRUT is not set
CONFIG_ACPI_PCC=y
# CONFIG_ACPI_FFH is not set
# CONFIG_PMIC_OPREGION is not set
CONFIG_ACPI_PRMT=y
CONFIG_X86_PM_TIMER=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
CONFIG_X86_INTEL_PSTATE=y
# CONFIG_X86_PCC_CPUFREQ is not set
# CONFIG_X86_AMD_PSTATE is not set
# CONFIG_X86_AMD_PSTATE_UT is not set
CONFIG_X86_ACPI_CPUFREQ=m
CONFIG_X86_ACPI_CPUFREQ_CPB=y
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_AMD_FREQ_SENSITIVITY is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
CONFIG_X86_P4_CLOCKMOD=m

#
# shared options
#
CONFIG_X86_SPEEDSTEP_LIB=m
# end of CPU Frequency scaling

#
# CPU Idle
#
CONFIG_CPU_IDLE=y
# CONFIG_CPU_IDLE_GOV_LADDER is not set
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_CPU_IDLE_GOV_TEO is not set
CONFIG_CPU_IDLE_GOV_HALTPOLL=y
CONFIG_HALTPOLL_CPUIDLE=y
# end of CPU Idle

CONFIG_INTEL_IDLE=y
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_MMCONF_FAM10H=y
CONFIG_ISA_DMA_API=y
CONFIG_AMD_NB=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
CONFIG_IA32_EMULATION=y
# CONFIG_X86_X32_ABI is not set
CONFIG_COMPAT_32=y
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
# end of Binary Emulations

CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_PFNCACHE=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_DIRTY_RING=y
CONFIG_HAVE_KVM_DIRTY_RING_TSO=y
CONFIG_HAVE_KVM_DIRTY_RING_ACQ_REL=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_MMIO=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_HAVE_KVM_MSI=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT=y
CONFIG_KVM_COMPAT=y
CONFIG_HAVE_KVM_IRQ_BYPASS=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_KVM_XFER_TO_GUEST_WORK=y
CONFIG_HAVE_KVM_PM_NOTIFIER=y
CONFIG_KVM_GENERIC_HARDWARE_ENABLING=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KVM_INTEL=m
# CONFIG_KVM_AMD is not set
CONFIG_KVM_SMM=y
# CONFIG_KVM_XEN is not set
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y
CONFIG_AS_GFNI=y

#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_HOTPLUG_SMT=y
CONFIG_GENERIC_ENTRY=y
CONFIG_KPROBES=y
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_OPTPROBES=y
CONFIG_KPROBES_ON_FTRACE=y
CONFIG_UPROBES=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_KRETPROBES=y
CONFIG_KRETPROBE_ON_RETHOOK=y
CONFIG_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_RUST=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_HAS_NMI_SAFE_THIS_CPU_OPS=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_ARCH_SUPPORTS_CFI_CLANG=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_CONTEXT_TRACKING_USER_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
CONFIG_ARCH_MMAP_RND_COMPAT_BITS=8
CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_HAVE_OBJTOOL=y
CONFIG_HAVE_JUMP_LABEL_HACK=y
CONFIG_HAVE_NOINSTR_HACK=y
CONFIG_HAVE_NOINSTR_VALIDATION=y
CONFIG_HAVE_UACCESS_VALIDATION=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_COMPAT_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_USE_MEMREMAP_PROT=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_ARCH_HAS_CC_PLATFORM=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
CONFIG_FUNCTION_ALIGNMENT_4B=y
CONFIG_FUNCTION_ALIGNMENT_16B=y
CONFIG_FUNCTION_ALIGNMENT=16
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULE_SIG_FORMAT=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_CGROUP_RWSTAT=y
CONFIG_BLK_DEV_BSG_COMMON=y
CONFIG_BLK_ICQ=y
CONFIG_BLK_DEV_BSGLIB=y
CONFIG_BLK_DEV_INTEGRITY=y
CONFIG_BLK_DEV_INTEGRITY_T10=m
CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
# CONFIG_BLK_DEV_THROTTLING_LOW is not set
CONFIG_BLK_WBT=y
CONFIG_BLK_WBT_MQ=y
# CONFIG_BLK_CGROUP_IOLATENCY is not set
# CONFIG_BLK_CGROUP_IOCOST is not set
# CONFIG_BLK_CGROUP_IOPRIO is not set
CONFIG_BLK_DEBUG_FS=y
CONFIG_BLK_DEBUG_FS_ZONED=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLK_MQ_PCI=y
CONFIG_BLK_MQ_VIRTIO=y
CONFIG_BLK_MQ_RDMA=y
CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
# CONFIG_BFQ_CGROUP_DEBUG is not set
# end of IO Schedulers

CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_COMPAT_BINFMT_ELF=y
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=m
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_ZPOOL=y
CONFIG_SWAP=y
CONFIG_ZSWAP=y
# CONFIG_ZSWAP_DEFAULT_ON is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_DEFLATE is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZO=y
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_842 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4HC is not set
# CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD is not set
CONFIG_ZSWAP_COMPRESSOR_DEFAULT="lzo"
CONFIG_ZSWAP_ZPOOL_DEFAULT_ZBUD=y
# CONFIG_ZSWAP_ZPOOL_DEFAULT_Z3FOLD is not set
# CONFIG_ZSWAP_ZPOOL_DEFAULT_ZSMALLOC is not set
CONFIG_ZSWAP_ZPOOL_DEFAULT="zbud"
CONFIG_ZBUD=y
# CONFIG_Z3FOLD is not set
CONFIG_ZSMALLOC=y
CONFIG_ZSMALLOC_STAT=y
CONFIG_ZSMALLOC_CHAIN_SIZE=8

#
# SLAB allocator options
#
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
CONFIG_SLAB_FREELIST_RANDOM=y
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLUB_STATS is not set
CONFIG_SLUB_CPU_PARTIAL=y
# end of SLAB allocator options

CONFIG_SHUFFLE_PAGE_ALLOCATOR=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_NUMA_KEEP_MEMINFO=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_HAVE_BOOTMEM_INFO_NODE=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE is not set
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_MHP_MEMMAP_ON_MEMORY=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_MEMORY_BALLOON=y
CONFIG_BALLOON_COMPACTION=y
CONFIG_COMPACTION=y
CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_DEVICE_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_ARCH_ENABLE_THP_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_MMU_NOTIFIER=y
CONFIG_KSM=y
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=m
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANTS_THP_SWAP=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_THP_SWAP=y
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_USE_PERCPU_NUMA_NODE_ID=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_FRONTSWAP=y
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
# CONFIG_CMA_SYSFS is not set
CONFIG_CMA_AREAS=19
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_DEFERRED_STRUCT_PAGE_INIT=y
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_ZONE_DEVICE=y
CONFIG_HMM_MIRROR=y
CONFIG_GET_FREE_REGION=y
CONFIG_DEVICE_PRIVATE=y
CONFIG_VMAP_PFN=y
CONFIG_ARCH_USES_HIGH_VMA_FLAGS=y
CONFIG_ARCH_HAS_PKEYS=y
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_COMPAT_NETLINK_MESSAGES=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_DIAG=m
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
CONFIG_UNIX_DIAG=m
CONFIG_TLS=m
CONFIG_TLS_DEVICE=y
# CONFIG_TLS_TOE is not set
CONFIG_XFRM=y
CONFIG_XFRM_OFFLOAD=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_USER_COMPAT is not set
# CONFIG_XFRM_INTERFACE is not set
CONFIG_XFRM_SUB_POLICY=y
CONFIG_XFRM_MIGRATE=y
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=m
CONFIG_XFRM_ESP=m
CONFIG_XFRM_IPCOMP=m
# CONFIG_NET_KEY is not set
# CONFIG_SMC is not set
CONFIG_XDP_SOCKETS=y
# CONFIG_XDP_SOCKETS_DIAG is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_CLASSID=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_IP_PNP_BOOTP is not set
# CONFIG_IP_PNP_RARP is not set
CONFIG_NET_IPIP=m
CONFIG_NET_IPGRE_DEMUX=m
CONFIG_NET_IP_TUNNEL=m
CONFIG_NET_IPGRE=m
CONFIG_NET_IPGRE_BROADCAST=y
CONFIG_IP_MROUTE_COMMON=y
CONFIG_IP_MROUTE=y
CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
CONFIG_NET_IPVTI=m
CONFIG_NET_UDP_TUNNEL=m
# CONFIG_NET_FOU is not set
# CONFIG_NET_FOU_IP_TUNNELS is not set
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_ESP_OFFLOAD=m
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=m
CONFIG_INET_TABLE_PERTURB_ORDER=16
CONFIG_INET_XFRM_TUNNEL=m
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_INET_RAW_DIAG=m
# CONFIG_INET_DIAG_DESTROY is not set
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_NV=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
CONFIG_TCP_CONG_DCTCP=m
# CONFIG_TCP_CONG_CDG is not set
CONFIG_TCP_CONG_BBR=m
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
CONFIG_INET6_AH=m
CONFIG_INET6_ESP=m
CONFIG_INET6_ESP_OFFLOAD=m
# CONFIG_INET6_ESPINTCP is not set
CONFIG_INET6_IPCOMP=m
CONFIG_IPV6_MIP6=m
# CONFIG_IPV6_ILA is not set
CONFIG_INET6_XFRM_TUNNEL=m
CONFIG_INET6_TUNNEL=m
CONFIG_IPV6_VTI=m
CONFIG_IPV6_SIT=m
CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_NDISC_NODETYPE=y
CONFIG_IPV6_TUNNEL=m
CONFIG_IPV6_GRE=m
CONFIG_IPV6_MULTIPLE_TABLES=y
# CONFIG_IPV6_SUBTREES is not set
CONFIG_IPV6_MROUTE=y
CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
CONFIG_IPV6_PIMSM_V2=y
# CONFIG_IPV6_SEG6_LWTUNNEL is not set
# CONFIG_IPV6_SEG6_HMAC is not set
# CONFIG_IPV6_RPL_LWTUNNEL is not set
# CONFIG_IPV6_IOAM6_LWTUNNEL is not set
CONFIG_NETLABEL=y
# CONFIG_MPTCP is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_BRIDGE_NETFILTER=m

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
CONFIG_NETFILTER_SKIP_EGRESS=y
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_FAMILY_BRIDGE=y
CONFIG_NETFILTER_FAMILY_ARP=y
# CONFIG_NETFILTER_NETLINK_HOOK is not set
# CONFIG_NETFILTER_NETLINK_ACCT is not set
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NETFILTER_NETLINK_OSF=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_LOG_SYSLOG=m
CONFIG_NETFILTER_CONNCOUNT=m
CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_PROCFS=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_LABELS=y
CONFIG_NF_CONNTRACK_OVS=y
CONFIG_NF_CT_PROTO_DCCP=y
CONFIG_NF_CT_PROTO_GRE=y
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_BROADCAST=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_TIMEOUT=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_NAT=m
CONFIG_NF_NAT_AMANDA=m
CONFIG_NF_NAT_FTP=m
CONFIG_NF_NAT_IRC=m
CONFIG_NF_NAT_SIP=m
CONFIG_NF_NAT_TFTP=m
CONFIG_NF_NAT_REDIRECT=y
CONFIG_NF_NAT_MASQUERADE=y
CONFIG_NF_NAT_OVS=y
CONFIG_NETFILTER_SYNPROXY=m
CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_INET=y
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_NUMGEN=m
CONFIG_NFT_CT=m
CONFIG_NFT_CONNLIMIT=m
CONFIG_NFT_LOG=m
CONFIG_NFT_LIMIT=m
CONFIG_NFT_MASQ=m
CONFIG_NFT_REDIR=m
CONFIG_NFT_NAT=m
# CONFIG_NFT_TUNNEL is not set
CONFIG_NFT_QUEUE=m
CONFIG_NFT_QUOTA=m
CONFIG_NFT_REJECT=m
CONFIG_NFT_REJECT_INET=m
CONFIG_NFT_COMPAT=m
CONFIG_NFT_HASH=m
CONFIG_NFT_FIB=m
CONFIG_NFT_FIB_INET=m
# CONFIG_NFT_XFRM is not set
CONFIG_NFT_SOCKET=m
# CONFIG_NFT_OSF is not set
# CONFIG_NFT_TPROXY is not set
# CONFIG_NFT_SYNPROXY is not set
CONFIG_NF_DUP_NETDEV=m
CONFIG_NFT_DUP_NETDEV=m
CONFIG_NFT_FWD_NETDEV=m
CONFIG_NFT_FIB_NETDEV=m
# CONFIG_NFT_REJECT_NETDEV is not set
# CONFIG_NF_FLOW_TABLE is not set
CONFIG_NETFILTER_XTABLES=y
CONFIG_NETFILTER_XTABLES_COMPAT=y

#
# Xtables combined modules
#
CONFIG_NETFILTER_XT_MARK=m
CONFIG_NETFILTER_XT_CONNMARK=m

#
# Xtables targets
#
CONFIG_NETFILTER_XT_TARGET_AUDIT=m
CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
CONFIG_NETFILTER_XT_TARGET_CT=m
CONFIG_NETFILTER_XT_TARGET_DSCP=m
CONFIG_NETFILTER_XT_TARGET_HL=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
# CONFIG_NETFILTER_XT_TARGET_LED is not set
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_NAT=m
CONFIG_NETFILTER_XT_TARGET_NETMAP=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_NOTRACK=m
CONFIG_NETFILTER_XT_TARGET_RATEEST=m
CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TPROXY=m
CONFIG_NETFILTER_XT_TARGET_TRACE=m
CONFIG_NETFILTER_XT_TARGET_SECMARK=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m

#
# Xtables matches
#
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CGROUP=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_HL=m
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_IPVS=m
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# end of Core Netfilter Configuration

# CONFIG_IP_SET is not set
CONFIG_IP_VS=m
CONFIG_IP_VS_IPV6=y
# CONFIG_IP_VS_DEBUG is not set
CONFIG_IP_VS_TAB_BITS=12

#
# IPVS transport protocol load balancing support
#
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_AH_ESP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y

#
# IPVS scheduler
#
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_FO=m
CONFIG_IP_VS_OVF=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
# CONFIG_IP_VS_MH is not set
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
# CONFIG_IP_VS_TWOS is not set

#
# IPVS SH scheduler
#
CONFIG_IP_VS_SH_TAB_BITS=8

#
# IPVS MH scheduler
#
CONFIG_IP_VS_MH_TAB_INDEX=12

#
# IPVS application helper
#
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_NFCT=y
CONFIG_IP_VS_PE_SIP=m

#
# IP: Netfilter Configuration
#
CONFIG_NF_DEFRAG_IPV4=m
CONFIG_NF_SOCKET_IPV4=m
CONFIG_NF_TPROXY_IPV4=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_REJECT_IPV4=m
CONFIG_NFT_DUP_IPV4=m
CONFIG_NFT_FIB_IPV4=m
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_DUP_IPV4=m
CONFIG_NF_LOG_ARP=m
CONFIG_NF_LOG_IPV4=m
CONFIG_NF_REJECT_IPV4=m
CONFIG_NF_NAT_SNMP_BASIC=m
CONFIG_NF_NAT_PPTP=m
CONFIG_NF_NAT_H323=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_RPFILTER=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_SYNPROXY=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_SECURITY=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
# end of IP: Netfilter Configuration

#
# IPv6: Netfilter Configuration
#
CONFIG_NF_SOCKET_IPV6=m
CONFIG_NF_TPROXY_IPV6=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_REJECT_IPV6=m
CONFIG_NFT_DUP_IPV6=m
CONFIG_NFT_FIB_IPV6=m
CONFIG_NF_DUP_IPV6=m
CONFIG_NF_REJECT_IPV6=m
CONFIG_NF_LOG_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
CONFIG_IP6_NF_MATCH_AH=m
CONFIG_IP6_NF_MATCH_EUI64=m
CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RPFILTER=m
CONFIG_IP6_NF_MATCH_RT=m
# CONFIG_IP6_NF_MATCH_SRH is not set
# CONFIG_IP6_NF_TARGET_HL is not set
CONFIG_IP6_NF_FILTER=m
CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_TARGET_SYNPROXY=m
CONFIG_IP6_NF_MANGLE=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
CONFIG_IP6_NF_TARGET_NPT=m
# end of IPv6: Netfilter Configuration

CONFIG_NF_DEFRAG_IPV6=m
CONFIG_NF_TABLES_BRIDGE=m
# CONFIG_NFT_BRIDGE_META is not set
CONFIG_NFT_BRIDGE_REJECT=m
# CONFIG_NF_CONNTRACK_BRIDGE is not set
CONFIG_BRIDGE_NF_EBTABLES=m
CONFIG_BRIDGE_EBT_BROUTE=m
CONFIG_BRIDGE_EBT_T_FILTER=m
CONFIG_BRIDGE_EBT_T_NAT=m
CONFIG_BRIDGE_EBT_802_3=m
CONFIG_BRIDGE_EBT_AMONG=m
CONFIG_BRIDGE_EBT_ARP=m
CONFIG_BRIDGE_EBT_IP=m
CONFIG_BRIDGE_EBT_IP6=m
CONFIG_BRIDGE_EBT_LIMIT=m
CONFIG_BRIDGE_EBT_MARK=m
CONFIG_BRIDGE_EBT_PKTTYPE=m
CONFIG_BRIDGE_EBT_STP=m
CONFIG_BRIDGE_EBT_VLAN=m
CONFIG_BRIDGE_EBT_ARPREPLY=m
CONFIG_BRIDGE_EBT_DNAT=m
CONFIG_BRIDGE_EBT_MARK_T=m
CONFIG_BRIDGE_EBT_REDIRECT=m
CONFIG_BRIDGE_EBT_SNAT=m
CONFIG_BRIDGE_EBT_LOG=m
CONFIG_BRIDGE_EBT_NFLOG=m
# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
CONFIG_IP_SCTP=m
# CONFIG_SCTP_DBG_OBJCNT is not set
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5 is not set
CONFIG_SCTP_DEFAULT_COOKIE_HMAC_SHA1=y
# CONFIG_SCTP_DEFAULT_COOKIE_HMAC_NONE is not set
CONFIG_SCTP_COOKIE_HMAC_MD5=y
CONFIG_SCTP_COOKIE_HMAC_SHA1=y
CONFIG_INET_SCTP_DIAG=m
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
CONFIG_STP=m
CONFIG_GARP=m
CONFIG_MRP=m
CONFIG_BRIDGE=m
CONFIG_BRIDGE_IGMP_SNOOPING=y
CONFIG_BRIDGE_VLAN_FILTERING=y
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
# CONFIG_NET_DSA is not set
CONFIG_VLAN_8021Q=m
CONFIG_VLAN_8021Q_GVRP=y
CONFIG_VLAN_8021Q_MVRP=y
CONFIG_LLC=m
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y

#
# Queueing/Scheduling
#
CONFIG_NET_SCH_HTB=m
CONFIG_NET_SCH_HFSC=m
CONFIG_NET_SCH_PRIO=m
CONFIG_NET_SCH_MULTIQ=m
CONFIG_NET_SCH_RED=m
CONFIG_NET_SCH_SFB=m
CONFIG_NET_SCH_SFQ=m
CONFIG_NET_SCH_TEQL=m
CONFIG_NET_SCH_TBF=m
# CONFIG_NET_SCH_CBS is not set
# CONFIG_NET_SCH_ETF is not set
CONFIG_NET_SCH_MQPRIO_LIB=m
# CONFIG_NET_SCH_TAPRIO is not set
CONFIG_NET_SCH_GRED=m
CONFIG_NET_SCH_NETEM=m
CONFIG_NET_SCH_DRR=m
CONFIG_NET_SCH_MQPRIO=m
# CONFIG_NET_SCH_SKBPRIO is not set
CONFIG_NET_SCH_CHOKE=m
CONFIG_NET_SCH_QFQ=m
CONFIG_NET_SCH_CODEL=m
CONFIG_NET_SCH_FQ_CODEL=y
# CONFIG_NET_SCH_CAKE is not set
CONFIG_NET_SCH_FQ=m
CONFIG_NET_SCH_HHF=m
CONFIG_NET_SCH_PIE=m
# CONFIG_NET_SCH_FQ_PIE is not set
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_SCH_PLUG=m
# CONFIG_NET_SCH_ETS is not set
CONFIG_NET_SCH_DEFAULT=y
# CONFIG_DEFAULT_FQ is not set
# CONFIG_DEFAULT_CODEL is not set
CONFIG_DEFAULT_FQ_CODEL=y
# CONFIG_DEFAULT_SFQ is not set
# CONFIG_DEFAULT_PFIFO_FAST is not set
CONFIG_DEFAULT_NET_SCH="fq_codel"

#
# Classification
#
CONFIG_NET_CLS=y
CONFIG_NET_CLS_BASIC=m
CONFIG_NET_CLS_ROUTE4=m
CONFIG_NET_CLS_FW=m
CONFIG_NET_CLS_U32=m
CONFIG_CLS_U32_PERF=y
CONFIG_CLS_U32_MARK=y
CONFIG_NET_CLS_FLOW=m
CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_CLS_BPF=m
CONFIG_NET_CLS_FLOWER=m
CONFIG_NET_CLS_MATCHALL=m
CONFIG_NET_EMATCH=y
CONFIG_NET_EMATCH_STACK=32
CONFIG_NET_EMATCH_CMP=m
CONFIG_NET_EMATCH_NBYTE=m
CONFIG_NET_EMATCH_U32=m
CONFIG_NET_EMATCH_META=m
CONFIG_NET_EMATCH_TEXT=m
# CONFIG_NET_EMATCH_CANID is not set
# CONFIG_NET_EMATCH_IPT is not set
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=m
CONFIG_NET_ACT_GACT=m
CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_SAMPLE=m
# CONFIG_NET_ACT_IPT is not set
CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_ACT_CSUM=m
# CONFIG_NET_ACT_MPLS is not set
CONFIG_NET_ACT_VLAN=m
CONFIG_NET_ACT_BPF=m
# CONFIG_NET_ACT_CONNMARK is not set
# CONFIG_NET_ACT_CTINFO is not set
CONFIG_NET_ACT_SKBMOD=m
# CONFIG_NET_ACT_IFE is not set
CONFIG_NET_ACT_TUNNEL_KEY=m
# CONFIG_NET_ACT_GATE is not set
# CONFIG_NET_TC_SKB_EXT is not set
CONFIG_NET_SCH_FIFO=y
CONFIG_DCB=y
CONFIG_DNS_RESOLVER=m
# CONFIG_BATMAN_ADV is not set
CONFIG_OPENVSWITCH=m
CONFIG_OPENVSWITCH_GRE=m
CONFIG_VSOCKETS=m
CONFIG_VSOCKETS_DIAG=m
CONFIG_VSOCKETS_LOOPBACK=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS_COMMON=m
CONFIG_HYPERV_VSOCKETS=m
CONFIG_NETLINK_DIAG=m
CONFIG_MPLS=y
CONFIG_NET_MPLS_GSO=y
CONFIG_MPLS_ROUTING=m
CONFIG_MPLS_IPTUNNEL=m
CONFIG_NET_NSH=y
# CONFIG_HSR is not set
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_L3_MASTER_DEV=y
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
CONFIG_CGROUP_NET_PRIO=y
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
CONFIG_NET_PKTGEN=m
CONFIG_NET_DROP_MONITOR=y
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=m
CONFIG_CAN_RAW=m
CONFIG_CAN_BCM=m
CONFIG_CAN_GW=m
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
CONFIG_STREAM_PARSER=y
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
CONFIG_MAC80211_MESH=y
CONFIG_MAC80211_LEDS=y
CONFIG_MAC80211_DEBUGFS=y
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
CONFIG_RFKILL=m
CONFIG_RFKILL_LEDS=y
CONFIG_RFKILL_INPUT=y
# CONFIG_RFKILL_GPIO is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_FD=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_RDMA is not set
# CONFIG_NET_9P_DEBUG is not set
# CONFIG_CAIF is not set
CONFIG_CEPH_LIB=m
# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
CONFIG_CEPH_LIB_USE_DNS_RESOLVER=y
# CONFIG_NFC is not set
CONFIG_PSAMPLE=m
# CONFIG_NET_IFE is not set
CONFIG_LWTUNNEL=y
CONFIG_LWTUNNEL_BPF=y
CONFIG_DST_CACHE=y
CONFIG_GRO_CELLS=y
CONFIG_SOCK_VALIDATE_XMIT=y
CONFIG_NET_SELFTESTS=y
CONFIG_NET_SOCK_MSG=y
CONFIG_PAGE_POOL=y
# CONFIG_PAGE_POOL_STATS is not set
CONFIG_FAILOVER=m
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCIEPORTBUS=y
CONFIG_HOTPLUG_PCI_PCIE=y
CONFIG_PCIEAER=y
CONFIG_PCIEAER_INJECT=m
CONFIG_PCIE_ECRC=y
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
CONFIG_PCIE_PME=y
CONFIG_PCIE_DPC=y
# CONFIG_PCIE_PTM is not set
# CONFIG_PCIE_EDR is not set
CONFIG_PCI_MSI=y
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
CONFIG_PCI_STUB=y
CONFIG_PCI_PF_STUB=m
CONFIG_PCI_ATS=y
CONFIG_PCI_LOCKLESS_CONFIG=y
CONFIG_PCI_IOV=y
CONFIG_PCI_PRI=y
CONFIG_PCI_PASID=y
# CONFIG_PCI_P2PDMA is not set
CONFIG_PCI_LABEL=y
CONFIG_PCI_HYPERV=m
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=64
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_HOTPLUG_PCI_ACPI_IBM=m
# CONFIG_HOTPLUG_PCI_CPCI is not set
CONFIG_HOTPLUG_PCI_SHPC=y

#
# PCI controller drivers
#
CONFIG_VMD=y
CONFIG_PCI_HYPERV_INTERFACE=m

#
# DesignWare PCI Core Support
#
# CONFIG_PCIE_DW_PLAT_HOST is not set
# CONFIG_PCI_MESON is not set
# end of DesignWare PCI Core Support

#
# Mobiveil PCIe Core Support
#
# end of Mobiveil PCIe Core Support

#
# Cadence PCIe controllers support
#
# end of Cadence PCIe controllers support
# end of PCI controller drivers

#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint

#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers

# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set

#
# Generic Driver Options
#
CONFIG_AUXILIARY_BUS=y
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_FW_LOADER_SYSFS=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=m
CONFIG_REGMAP_SPI=m
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol

CONFIG_EDD=m
# CONFIG_EDD_OFF is not set
CONFIG_FIRMWARE_MEMMAP=y
CONFIG_DMIID=y
CONFIG_DMI_SYSFS=y
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT is not set
CONFIG_FW_CFG_SYSFS=y
# CONFIG_FW_CFG_SYSFS_CMDLINE is not set
CONFIG_SYSFB=y
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# EFI (Extensible Firmware Interface) Support
#
CONFIG_EFI_ESRT=y
CONFIG_EFI_VARS_PSTORE=y
CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE=y
CONFIG_EFI_DXE_MEM_ATTRIBUTES=y
CONFIG_EFI_RUNTIME_WRAPPERS=y
# CONFIG_EFI_BOOTLOADER_CONTROL is not set
# CONFIG_EFI_CAPSULE_LOADER is not set
# CONFIG_EFI_TEST is not set
# CONFIG_APPLE_PROPERTIES is not set
# CONFIG_RESET_ATTACK_MITIGATION is not set
# CONFIG_EFI_RCI2_TABLE is not set
# CONFIG_EFI_DISABLE_PCI_DMA is not set
CONFIG_EFI_EARLYCON=y
CONFIG_EFI_CUSTOM_SSDT_OVERLAYS=y
# CONFIG_EFI_DISABLE_RUNTIME is not set
# CONFIG_EFI_COCO_SECRET is not set
# end of EFI (Extensible Firmware Interface) Support

CONFIG_UEFI_CPER=y
CONFIG_UEFI_CPER_X86=y

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_PARPORT=m
CONFIG_PARPORT_PC=m
CONFIG_PARPORT_SERIAL=m
# CONFIG_PARPORT_PC_FIFO is not set
# CONFIG_PARPORT_PC_SUPERIO is not set
CONFIG_PARPORT_1284=y
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set

#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
CONFIG_BLK_DEV_NULL_BLK=m
CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION=y
# CONFIG_BLK_DEV_FD is not set
CONFIG_CDROM=m
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
# CONFIG_ZRAM is not set
CONFIG_BLK_DEV_LOOP=m
CONFIG_BLK_DEV_LOOP_MIN_COUNT=0
# CONFIG_BLK_DEV_DRBD is not set
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=16384
CONFIG_CDROM_PKTCDVD=m
CONFIG_CDROM_PKTCDVD_BUFFERS=8
# CONFIG_CDROM_PKTCDVD_WCACHE is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_VIRTIO_BLK=m
CONFIG_BLK_DEV_RBD=m
# CONFIG_BLK_DEV_UBLK is not set

#
# NVME Support
#
CONFIG_NVME_CORE=m
CONFIG_BLK_DEV_NVME=m
CONFIG_NVME_MULTIPATH=y
# CONFIG_NVME_VERBOSE_ERRORS is not set
# CONFIG_NVME_HWMON is not set
CONFIG_NVME_FABRICS=m
# CONFIG_NVME_RDMA is not set
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TCP is not set
# CONFIG_NVME_AUTH is not set
CONFIG_NVME_TARGET=m
# CONFIG_NVME_TARGET_PASSTHRU is not set
CONFIG_NVME_TARGET_LOOP=m
# CONFIG_NVME_TARGET_RDMA is not set
CONFIG_NVME_TARGET_FC=m
# CONFIG_NVME_TARGET_TCP is not set
# CONFIG_NVME_TARGET_AUTH is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
CONFIG_TIFM_CORE=m
CONFIG_TIFM_7XX1=m
# CONFIG_ICS932S401 is not set
CONFIG_ENCLOSURE_SERVICES=m
# CONFIG_SGI_XP is not set
CONFIG_HP_ILO=m
# CONFIG_SGI_GRU is not set
CONFIG_APDS9802ALS=m
CONFIG_ISL29003=m
CONFIG_ISL29020=m
CONFIG_SENSORS_TSL2550=m
CONFIG_SENSORS_BH1770=m
CONFIG_SENSORS_APDS990X=m
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
CONFIG_EEPROM_LEGACY=m
CONFIG_EEPROM_MAX6875=m
CONFIG_EEPROM_93CX6=m
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

# CONFIG_CB710_CORE is not set

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
CONFIG_INTEL_MEI=m
CONFIG_INTEL_MEI_ME=m
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_INTEL_MEI_GSC is not set
# CONFIG_INTEL_MEI_HDCP is not set
# CONFIG_INTEL_MEI_PXP is not set
# CONFIG_VMWARE_VMCI is not set
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_BCM_VK is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_UACCE is not set
CONFIG_PVPANIC=y
# CONFIG_PVPANIC_MMIO is not set
# CONFIG_PVPANIC_PCI is not set
# CONFIG_GP_PCI1XXXX is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_NETLINK=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
CONFIG_CHR_DEV_ST=m
CONFIG_BLK_DEV_SR=m
CONFIG_CHR_DEV_SG=m
CONFIG_BLK_DEV_BSG=y
CONFIG_CHR_DEV_SCH=m
CONFIG_SCSI_ENCLOSURE=m
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y

#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
CONFIG_SCSI_FC_ATTRS=m
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
CONFIG_SCSI_SAS_ATA=y
CONFIG_SCSI_SAS_HOST_SMP=y
CONFIG_SCSI_SRP_ATTRS=m
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_MPT3SAS=m
CONFIG_SCSI_MPT2SAS_MAX_SGE=128
CONFIG_SCSI_MPT3SAS_MAX_SGE=128
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_MPI3MR is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_MYRB is not set
# CONFIG_SCSI_MYRS is not set
# CONFIG_VMWARE_PVSCSI is not set
CONFIG_HYPERV_STORAGE=m
# CONFIG_LIBFC is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_FDOMAIN_PCI is not set
CONFIG_SCSI_ISCI=m
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_PPA is not set
# CONFIG_SCSI_IMM is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
CONFIG_SCSI_DEBUG=m
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_BFA_FC is not set
# CONFIG_SCSI_VIRTIO is not set
# CONFIG_SCSI_CHELSIO_FCOE is not set
CONFIG_SCSI_DH=y
CONFIG_SCSI_DH_RDAC=y
CONFIG_SCSI_DH_HP_SW=y
CONFIG_SCSI_DH_EMC=y
CONFIG_SCSI_DH_ALUA=y
# end of SCSI device support

CONFIG_ATA=m
CONFIG_SATA_HOST=y
CONFIG_PATA_TIMINGS=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_ATA_ACPI=y
# CONFIG_SATA_ZPODD is not set
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_MOBILE_LPM_POLICY=0
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_AHCI_DWC is not set
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
CONFIG_ATA_PIIX=m
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set

#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_PARPORT is not set

#
# Generic fallback / legacy drivers
#
# CONFIG_PATA_ACPI is not set
CONFIG_ATA_GENERIC=m
# CONFIG_PATA_LEGACY is not set
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
CONFIG_MD_AUTODETECT=y
CONFIG_MD_LINEAR=m
CONFIG_MD_RAID0=m
CONFIG_MD_RAID1=m
CONFIG_MD_RAID10=m
CONFIG_MD_RAID456=m
CONFIG_MD_MULTIPATH=m
CONFIG_MD_FAULTY=m
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=m
CONFIG_DM_DEBUG=y
CONFIG_DM_BUFIO=m
# CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
CONFIG_DM_BIO_PRISON=m
CONFIG_DM_PERSISTENT_DATA=m
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=m
CONFIG_DM_SNAPSHOT=m
CONFIG_DM_THIN_PROVISIONING=m
CONFIG_DM_CACHE=m
CONFIG_DM_CACHE_SMQ=m
CONFIG_DM_WRITECACHE=m
# CONFIG_DM_EBS is not set
CONFIG_DM_ERA=m
# CONFIG_DM_CLONE is not set
CONFIG_DM_MIRROR=m
CONFIG_DM_LOG_USERSPACE=m
CONFIG_DM_RAID=m
CONFIG_DM_ZERO=m
CONFIG_DM_MULTIPATH=m
CONFIG_DM_MULTIPATH_QL=m
CONFIG_DM_MULTIPATH_ST=m
# CONFIG_DM_MULTIPATH_HST is not set
# CONFIG_DM_MULTIPATH_IOA is not set
CONFIG_DM_DELAY=m
# CONFIG_DM_DUST is not set
CONFIG_DM_UEVENT=y
CONFIG_DM_FLAKEY=m
CONFIG_DM_VERITY=m
# CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG is not set
# CONFIG_DM_VERITY_FEC is not set
CONFIG_DM_SWITCH=m
CONFIG_DM_LOG_WRITES=m
CONFIG_DM_INTEGRITY=m
# CONFIG_DM_ZONED is not set
CONFIG_DM_AUDIT=y
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set

#
# IEEE 1394 (FireWire) support
#
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support

CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_AMT is not set
CONFIG_MACSEC=m
CONFIG_NETCONSOLE=m
CONFIG_NETCONSOLE_DYNAMIC=y
CONFIG_NETPOLL=y
CONFIG_NET_POLL_CONTROLLER=y
CONFIG_TUN=m
# CONFIG_TUN_VNET_CROSS_LE is not set
CONFIG_VETH=m
CONFIG_VIRTIO_NET=m
# CONFIG_NLMON is not set
# CONFIG_NET_VRF is not set
# CONFIG_VSOCKMON is not set
# CONFIG_ARCNET is not set
CONFIG_ETHERNET=y
CONFIG_MDIO=y
# CONFIG_NET_VENDOR_3COM is not set
CONFIG_NET_VENDOR_ADAPTEC=y
# CONFIG_ADAPTEC_STARFIRE is not set
CONFIG_NET_VENDOR_AGERE=y
# CONFIG_ET131X is not set
CONFIG_NET_VENDOR_ALACRITECH=y
# CONFIG_SLICOSS is not set
CONFIG_NET_VENDOR_ALTEON=y
# CONFIG_ACENIC is not set
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
# CONFIG_ENA_ETHERNET is not set
# CONFIG_NET_VENDOR_AMD is not set
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_AQTION is not set
CONFIG_NET_VENDOR_ARC=y
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
CONFIG_NET_VENDOR_ATHEROS=y
# CONFIG_ATL2 is not set
# CONFIG_ATL1 is not set
# CONFIG_ATL1E is not set
# CONFIG_ATL1C is not set
# CONFIG_ALX is not set
# CONFIG_CX_ECAT is not set
CONFIG_NET_VENDOR_BROADCOM=y
# CONFIG_B44 is not set
# CONFIG_BCMGENET is not set
# CONFIG_BNX2 is not set
# CONFIG_CNIC is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2X is not set
# CONFIG_SYSTEMPORT is not set
# CONFIG_BNXT is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_THUNDER_NIC_PF is not set
# CONFIG_THUNDER_NIC_VF is not set
# CONFIG_THUNDER_NIC_BGX is not set
# CONFIG_THUNDER_NIC_RGX is not set
CONFIG_CAVIUM_PTP=y
# CONFIG_LIQUIDIO is not set
# CONFIG_LIQUIDIO_VF is not set
CONFIG_NET_VENDOR_CHELSIO=y
# CONFIG_CHELSIO_T1 is not set
# CONFIG_CHELSIO_T3 is not set
# CONFIG_CHELSIO_T4 is not set
# CONFIG_CHELSIO_T4VF is not set
CONFIG_NET_VENDOR_CISCO=y
# CONFIG_ENIC is not set
CONFIG_NET_VENDOR_CORTINA=y
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9051 is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_DEC=y
# CONFIG_NET_TULIP is not set
CONFIG_NET_VENDOR_DLINK=y
# CONFIG_DL2K is not set
# CONFIG_SUNDANCE is not set
CONFIG_NET_VENDOR_EMULEX=y
# CONFIG_BE2NET is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
CONFIG_NET_VENDOR_EZCHIP=y
CONFIG_NET_VENDOR_FUNGIBLE=y
# CONFIG_FUN_ETH is not set
CONFIG_NET_VENDOR_GOOGLE=y
# CONFIG_GVE is not set
CONFIG_NET_VENDOR_HUAWEI=y
# CONFIG_HINIC is not set
CONFIG_NET_VENDOR_I825XX=y
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
CONFIG_E1000=y
CONFIG_E1000E=y
CONFIG_E1000E_HWTS=y
CONFIG_IGB=y
CONFIG_IGB_HWMON=y
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
CONFIG_IXGBE=y
CONFIG_IXGBE_HWMON=y
# CONFIG_IXGBE_DCB is not set
# CONFIG_IXGBE_IPSEC is not set
# CONFIG_IXGBEVF is not set
CONFIG_I40E=y
# CONFIG_I40E_DCB is not set
# CONFIG_I40EVF is not set
# CONFIG_ICE is not set
# CONFIG_FM10K is not set
CONFIG_IGC=y
CONFIG_NET_VENDOR_WANGXUN=y
# CONFIG_NGBE is not set
# CONFIG_TXGBE is not set
# CONFIG_JME is not set
CONFIG_NET_VENDOR_ADI=y
# CONFIG_ADIN1110 is not set
CONFIG_NET_VENDOR_LITEX=y
CONFIG_NET_VENDOR_MARVELL=y
# CONFIG_MVMDIO is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_OCTEON_EP is not set
# CONFIG_PRESTERA is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLX4_EN is not set
# CONFIG_MLX5_CORE is not set
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
CONFIG_NET_VENDOR_MICREL=y
# CONFIG_KS8842 is not set
# CONFIG_KS8851 is not set
# CONFIG_KS8851_MLL is not set
# CONFIG_KSZ884X_PCI is not set
CONFIG_NET_VENDOR_MICROCHIP=y
# CONFIG_ENC28J60 is not set
# CONFIG_ENCX24J600 is not set
# CONFIG_LAN743X is not set
# CONFIG_VCAP is not set
CONFIG_NET_VENDOR_MICROSEMI=y
CONFIG_NET_VENDOR_MICROSOFT=y
# CONFIG_MICROSOFT_MANA is not set
CONFIG_NET_VENDOR_MYRI=y
# CONFIG_MYRI10GE is not set
# CONFIG_FEALNX is not set
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
CONFIG_NET_VENDOR_NATSEMI=y
# CONFIG_NATSEMI is not set
# CONFIG_NS83820 is not set
CONFIG_NET_VENDOR_NETERION=y
# CONFIG_S2IO is not set
CONFIG_NET_VENDOR_NETRONOME=y
# CONFIG_NFP is not set
CONFIG_NET_VENDOR_8390=y
# CONFIG_NE2K_PCI is not set
CONFIG_NET_VENDOR_NVIDIA=y
# CONFIG_FORCEDETH is not set
CONFIG_NET_VENDOR_OKI=y
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PACKET_ENGINES=y
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_NET_VENDOR_PENSANDO=y
# CONFIG_IONIC is not set
CONFIG_NET_VENDOR_QLOGIC=y
# CONFIG_QLA3XXX is not set
# CONFIG_QLCNIC is not set
# CONFIG_NETXEN_NIC is not set
# CONFIG_QED is not set
CONFIG_NET_VENDOR_BROCADE=y
# CONFIG_BNA is not set
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RDC=y
# CONFIG_R6040 is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_ATP is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_R8169=y
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
# CONFIG_ROCKER is not set
CONFIG_NET_VENDOR_SAMSUNG=y
# CONFIG_SXGBE_ETH is not set
CONFIG_NET_VENDOR_SEEQ=y
CONFIG_NET_VENDOR_SILAN=y
# CONFIG_SC92031 is not set
CONFIG_NET_VENDOR_SIS=y
# CONFIG_SIS900 is not set
# CONFIG_SIS190 is not set
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_SFC is not set
# CONFIG_SFC_FALCON is not set
# CONFIG_SFC_SIENA is not set
CONFIG_NET_VENDOR_SMSC=y
# CONFIG_EPIC100 is not set
# CONFIG_SMSC911X is not set
# CONFIG_SMSC9420 is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
# CONFIG_STMMAC_ETH is not set
CONFIG_NET_VENDOR_SUN=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NIU is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_TEHUTI=y
# CONFIG_TEHUTI is not set
CONFIG_NET_VENDOR_TI=y
# CONFIG_TI_CPSW_PHY_SEL is not set
# CONFIG_TLAN is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
CONFIG_NET_VENDOR_VIA=y
# CONFIG_VIA_RHINE is not set
# CONFIG_VIA_VELOCITY is not set
CONFIG_NET_VENDOR_WIZNET=y
# CONFIG_WIZNET_W5100 is not set
# CONFIG_WIZNET_W5300 is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
CONFIG_PHYLINK=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_FIXED_PHY=y
# CONFIG_SFP is not set

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_ADIN1100_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
CONFIG_AX88796B_PHY=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
# CONFIG_MICREL_PHY is not set
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_NCN26000_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_DP83TD510_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PSE_CONTROLLER is not set
# CONFIG_CAN_DEV is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_ACPI_MDIO=y
CONFIG_MDIO_DEVRES=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_THUNDER is not set

#
# MDIO Multiplexers
#

#
# PCS device drivers
#
# end of PCS device drivers

# CONFIG_PLIP is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
CONFIG_USB_RTL8152=y
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=y
CONFIG_USB_NET_AX88179_178A=y
# CONFIG_USB_NET_CDCETHER is not set
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
# CONFIG_USB_NET_RNDIS_HOST is not set
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_HSO is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_USB_NET_AQC111 is not set
CONFIG_WLAN=y
CONFIG_WLAN_VENDOR_ADMTEK=y
# CONFIG_ADM8211 is not set
CONFIG_WLAN_VENDOR_ATH=y
# CONFIG_ATH_DEBUG is not set
# CONFIG_ATH5K is not set
# CONFIG_ATH5K_PCI is not set
# CONFIG_ATH9K is not set
# CONFIG_ATH9K_HTC is not set
# CONFIG_CARL9170 is not set
# CONFIG_ATH6KL is not set
# CONFIG_AR5523 is not set
# CONFIG_WIL6210 is not set
# CONFIG_ATH10K is not set
# CONFIG_WCN36XX is not set
# CONFIG_ATH11K is not set
# CONFIG_ATH12K is not set
CONFIG_WLAN_VENDOR_ATMEL=y
# CONFIG_ATMEL is not set
# CONFIG_AT76C50X_USB is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
# CONFIG_BRCMSMAC is not set
# CONFIG_BRCMFMAC is not set
CONFIG_WLAN_VENDOR_CISCO=y
# CONFIG_AIRO is not set
CONFIG_WLAN_VENDOR_INTEL=y
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
# CONFIG_IWL4965 is not set
# CONFIG_IWL3945 is not set
# CONFIG_IWLWIFI is not set
CONFIG_WLAN_VENDOR_INTERSIL=y
# CONFIG_HOSTAP is not set
# CONFIG_HERMES is not set
# CONFIG_P54_COMMON is not set
CONFIG_WLAN_VENDOR_MARVELL=y
# CONFIG_LIBERTAS is not set
# CONFIG_LIBERTAS_THINFIRM is not set
# CONFIG_MWIFIEX is not set
# CONFIG_MWL8K is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
CONFIG_WLAN_VENDOR_MICROCHIP=y
# CONFIG_WILC1000_SDIO is not set
# CONFIG_WILC1000_SPI is not set
CONFIG_WLAN_VENDOR_PURELIFI=y
# CONFIG_PLFXLC is not set
CONFIG_WLAN_VENDOR_RALINK=y
# CONFIG_RT2X00 is not set
CONFIG_WLAN_VENDOR_REALTEK=y
# CONFIG_RTL8180 is not set
# CONFIG_RTL8187 is not set
CONFIG_RTL_CARDS=m
# CONFIG_RTL8192CE is not set
# CONFIG_RTL8192SE is not set
# CONFIG_RTL8192DE is not set
# CONFIG_RTL8723AE is not set
# CONFIG_RTL8723BE is not set
# CONFIG_RTL8188EE is not set
# CONFIG_RTL8192EE is not set
# CONFIG_RTL8821AE is not set
# CONFIG_RTL8192CU is not set
# CONFIG_RTL8XXXU is not set
# CONFIG_RTW88 is not set
# CONFIG_RTW89 is not set
CONFIG_WLAN_VENDOR_RSI=y
# CONFIG_RSI_91X is not set
CONFIG_WLAN_VENDOR_SILABS=y
# CONFIG_WFX is not set
CONFIG_WLAN_VENDOR_ST=y
# CONFIG_CW1200 is not set
CONFIG_WLAN_VENDOR_TI=y
# CONFIG_WL1251 is not set
# CONFIG_WL12XX is not set
# CONFIG_WL18XX is not set
# CONFIG_WLCORE is not set
CONFIG_WLAN_VENDOR_ZYDAS=y
# CONFIG_USB_ZD1201 is not set
# CONFIG_ZD1211RW is not set
CONFIG_WLAN_VENDOR_QUANTENNA=y
# CONFIG_QTNFMAC_PCIE is not set
CONFIG_MAC80211_HWSIM=m
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set
# CONFIG_WAN is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
CONFIG_HYPERV_NET=y
# CONFIG_NETDEVSIM is not set
CONFIG_NET_FAILOVER=m
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=m
CONFIG_INPUT_SPARSEKMAP=m
# CONFIG_INPUT_MATRIXKMAP is not set
CONFIG_INPUT_VIVALDIFMAP=y

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
# CONFIG_KEYBOARD_APPLESPI is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
CONFIG_MOUSE_PS2_ALPS=y
CONFIG_MOUSE_PS2_BYD=y
CONFIG_MOUSE_PS2_LOGIPS2PP=y
CONFIG_MOUSE_PS2_SYNAPTICS=y
CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS=y
CONFIG_MOUSE_PS2_CYPRESS=y
CONFIG_MOUSE_PS2_LIFEBOOK=y
CONFIG_MOUSE_PS2_TRACKPOINT=y
CONFIG_MOUSE_PS2_ELANTECH=y
CONFIG_MOUSE_PS2_ELANTECH_SMBUS=y
CONFIG_MOUSE_PS2_SENTELIC=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
CONFIG_MOUSE_PS2_FOCALTECH=y
CONFIG_MOUSE_PS2_VMMOUSE=y
CONFIG_MOUSE_PS2_SMBUS=y
CONFIG_MOUSE_SERIAL=m
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
CONFIG_MOUSE_CYAPA=m
CONFIG_MOUSE_ELAN_I2C=m
CONFIG_MOUSE_ELAN_I2C_I2C=y
CONFIG_MOUSE_ELAN_I2C_SMBUS=y
CONFIG_MOUSE_VSXXXAA=m
# CONFIG_MOUSE_GPIO is not set
CONFIG_MOUSE_SYNAPTICS_I2C=m
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
CONFIG_RMI4_CORE=m
CONFIG_RMI4_I2C=m
CONFIG_RMI4_SPI=m
CONFIG_RMI4_SMB=m
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=m
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
CONFIG_RMI4_F12=y
CONFIG_RMI4_F30=y
CONFIG_RMI4_F34=y
# CONFIG_RMI4_F3A is not set
CONFIG_RMI4_F55=y

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
CONFIG_SERIO_SERPORT=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PARKBD is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
CONFIG_SERIO_ALTERA_PS2=m
# CONFIG_SERIO_PS2MULT is not set
CONFIG_SERIO_ARC_PS2=m
CONFIG_HYPERV_KEYBOARD=m
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LEGACY_TIOCSTI=y
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_16550A_VARIANTS is not set
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCILIB=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_EXAR=y
CONFIG_SERIAL_8250_NR_UARTS=64
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_PCI1XXXX is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_8250_LPSS=y
CONFIG_SERIAL_8250_MID=y
CONFIG_SERIAL_8250_PERICOM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
CONFIG_SERIAL_ARC=m
CONFIG_SERIAL_ARC_NR_PORTS=1
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
CONFIG_SYNCLINK_GT=m
CONFIG_N_HDLC=m
CONFIG_N_GSM=m
CONFIG_NOZOMI=m
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_SERIAL_DEV_BUS is not set
CONFIG_PRINTER=m
# CONFIG_LP_CONSOLE is not set
CONFIG_PPDEV=m
CONFIG_VIRTIO_CONSOLE=m
CONFIG_IPMI_HANDLER=m
CONFIG_IPMI_DMI_DECODE=y
CONFIG_IPMI_PLAT_DATA=y
CONFIG_IPMI_PANIC_EVENT=y
CONFIG_IPMI_PANIC_STRING=y
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_SSIF=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_TIMERIOMEM=m
CONFIG_HW_RANDOM_INTEL=m
# CONFIG_HW_RANDOM_AMD is not set
# CONFIG_HW_RANDOM_BA431 is not set
CONFIG_HW_RANDOM_VIA=m
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HW_RANDOM_XIPHERA is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
CONFIG_DEVMEM=y
CONFIG_NVRAM=y
CONFIG_DEVPORT=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HPET_MMAP_DEFAULT is not set
CONFIG_HANGCHECK_TIMER=m
CONFIG_UV_MMTIMER=m
CONFIG_TCG_TPM=y
CONFIG_HW_RANDOM_TPM=y
CONFIG_TCG_TIS_CORE=y
CONFIG_TCG_TIS=y
# CONFIG_TCG_TIS_SPI is not set
# CONFIG_TCG_TIS_I2C is not set
# CONFIG_TCG_TIS_I2C_CR50 is not set
CONFIG_TCG_TIS_I2C_ATMEL=m
CONFIG_TCG_TIS_I2C_INFINEON=m
CONFIG_TCG_TIS_I2C_NUVOTON=m
CONFIG_TCG_NSC=m
CONFIG_TCG_ATMEL=m
CONFIG_TCG_INFINEON=m
CONFIG_TCG_CRB=y
# CONFIG_TCG_VTPM_PROXY is not set
# CONFIG_TCG_TIS_ST33ZP24_I2C is not set
# CONFIG_TCG_TIS_ST33ZP24_SPI is not set
CONFIG_TELCLOCK=m
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_MUX=m

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_REG is not set
CONFIG_I2C_MUX_MLXCPLD=m
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=y
CONFIG_I2C_ALGOBIT=y
CONFIG_I2C_ALGOPCA=m

#
# I2C Hardware Bus support
#

#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
# CONFIG_I2C_AMD_MP2 is not set
CONFIG_I2C_I801=y
CONFIG_I2C_ISCH=m
CONFIG_I2C_ISMT=m
CONFIG_I2C_PIIX4=m
CONFIG_I2C_NFORCE2=m
CONFIG_I2C_NFORCE2_S4985=m
# CONFIG_I2C_NVIDIA_GPU is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
CONFIG_I2C_SIS96X=m
CONFIG_I2C_VIA=m
CONFIG_I2C_VIAPRO=m

#
# ACPI drivers
#
CONFIG_I2C_SCMI=m

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
CONFIG_I2C_DESIGNWARE_CORE=m
# CONFIG_I2C_DESIGNWARE_SLAVE is not set
CONFIG_I2C_DESIGNWARE_PLATFORM=m
# CONFIG_I2C_DESIGNWARE_AMDPSP is not set
CONFIG_I2C_DESIGNWARE_BAYTRAIL=y
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
# CONFIG_I2C_OCORES is not set
CONFIG_I2C_PCA_PLATFORM=m
CONFIG_I2C_SIMTEC=m
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
CONFIG_I2C_PARPORT=m
# CONFIG_I2C_PCI1XXXX is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
CONFIG_I2C_MLXCPLD=m
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

CONFIG_I2C_STUB=m
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_BUTTERFLY is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_LM70_LLP is not set
# CONFIG_SPI_MICROCHIP_CORE is not set
# CONFIG_SPI_MICROCHIP_CORE_QSPI is not set
# CONFIG_SPI_LANTIQ_SSC is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_PCI1XXXX is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
CONFIG_SPI_DYNAMIC=y
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
CONFIG_PPS_CLIENT_LDISC=m
CONFIG_PPS_CLIENT_PARPORT=m
CONFIG_PPS_CLIENT_GPIO=m

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
# CONFIG_DP83640_PHY is not set
# CONFIG_PTP_1588_CLOCK_INES is not set
CONFIG_PTP_1588_CLOCK_KVM=m
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# CONFIG_PTP_1588_CLOCK_VMW is not set
# end of PTP clock support

CONFIG_PINCTRL=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AMD is not set
# CONFIG_PINCTRL_CY8C95X0 is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_SX150X is not set

#
# Intel pinctrl drivers
#
# CONFIG_PINCTRL_BAYTRAIL is not set
# CONFIG_PINCTRL_CHERRYVIEW is not set
# CONFIG_PINCTRL_LYNXPOINT is not set
# CONFIG_PINCTRL_ALDERLAKE is not set
# CONFIG_PINCTRL_BROXTON is not set
# CONFIG_PINCTRL_CANNONLAKE is not set
# CONFIG_PINCTRL_CEDARFORK is not set
# CONFIG_PINCTRL_DENVERTON is not set
# CONFIG_PINCTRL_ELKHARTLAKE is not set
# CONFIG_PINCTRL_EMMITSBURG is not set
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_ICELAKE is not set
# CONFIG_PINCTRL_JASPERLAKE is not set
# CONFIG_PINCTRL_LAKEFIELD is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_METEORLAKE is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
# CONFIG_PINCTRL_TIGERLAKE is not set
# end of Intel pinctrl drivers

#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers

CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_GPIO_ACPI=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_AMDPT is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_EXAR is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
CONFIG_GPIO_ICH=m
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_VX855 is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# Port-mapped I/O GPIO drivers
#
# CONFIG_GPIO_F7188X is not set
# CONFIG_GPIO_IT87 is not set
# CONFIG_GPIO_SCH is not set
# CONFIG_GPIO_SCH311X is not set
# CONFIG_GPIO_WINBOND is not set
# CONFIG_GPIO_WS16C48 is not set
# end of Port-mapped I/O GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# end of MFD GPIO expanders

#
# PCI GPIO expanders
#
# CONFIG_GPIO_AMD8111 is not set
# CONFIG_GPIO_BT8XX is not set
# CONFIG_GPIO_ML_IOH is not set
# CONFIG_GPIO_PCI_IDIO_16 is not set
# CONFIG_GPIO_PCIE_IDIO_24 is not set
# CONFIG_GPIO_RDC321X is not set
# end of PCI GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_LATCH is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

# CONFIG_W1 is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_IP5XXX_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
CONFIG_HWMON=y
CONFIG_HWMON_VID=m
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
CONFIG_SENSORS_ABITUGURU=m
CONFIG_SENSORS_ABITUGURU3=m
# CONFIG_SENSORS_AD7314 is not set
CONFIG_SENSORS_AD7414=m
CONFIG_SENSORS_AD7418=m
CONFIG_SENSORS_ADM1025=m
CONFIG_SENSORS_ADM1026=m
CONFIG_SENSORS_ADM1029=m
CONFIG_SENSORS_ADM1031=m
# CONFIG_SENSORS_ADM1177 is not set
CONFIG_SENSORS_ADM9240=m
CONFIG_SENSORS_ADT7X10=m
# CONFIG_SENSORS_ADT7310 is not set
CONFIG_SENSORS_ADT7410=m
CONFIG_SENSORS_ADT7411=m
CONFIG_SENSORS_ADT7462=m
CONFIG_SENSORS_ADT7470=m
CONFIG_SENSORS_ADT7475=m
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
CONFIG_SENSORS_ASC7621=m
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
CONFIG_SENSORS_K8TEMP=m
CONFIG_SENSORS_K10TEMP=m
CONFIG_SENSORS_FAM15H_POWER=m
CONFIG_SENSORS_APPLESMC=m
CONFIG_SENSORS_ASB100=m
CONFIG_SENSORS_ATXP1=m
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
CONFIG_SENSORS_DS620=m
CONFIG_SENSORS_DS1621=m
# CONFIG_SENSORS_DELL_SMM is not set
CONFIG_SENSORS_I5K_AMB=m
CONFIG_SENSORS_F71805F=m
CONFIG_SENSORS_F71882FG=m
CONFIG_SENSORS_F75375S=m
CONFIG_SENSORS_FSCHMD=m
# CONFIG_SENSORS_FTSTEUTATES is not set
CONFIG_SENSORS_GL518SM=m
CONFIG_SENSORS_GL520SM=m
CONFIG_SENSORS_G760A=m
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IBMAEM=m
CONFIG_SENSORS_IBMPEX=m
CONFIG_SENSORS_I5500=m
CONFIG_SENSORS_CORETEMP=m
CONFIG_SENSORS_IT87=m
CONFIG_SENSORS_JC42=m
# CONFIG_SENSORS_POWR1220 is not set
CONFIG_SENSORS_LINEAGE=m
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
CONFIG_SENSORS_LTC4151=m
CONFIG_SENSORS_LTC4215=m
# CONFIG_SENSORS_LTC4222 is not set
CONFIG_SENSORS_LTC4245=m
# CONFIG_SENSORS_LTC4260 is not set
CONFIG_SENSORS_LTC4261=m
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
CONFIG_SENSORS_MAX16065=m
CONFIG_SENSORS_MAX1619=m
CONFIG_SENSORS_MAX1668=m
CONFIG_SENSORS_MAX197=m
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX31760 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
CONFIG_SENSORS_MAX6639=m
CONFIG_SENSORS_MAX6650=m
CONFIG_SENSORS_MAX6697=m
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MC34VR500 is not set
CONFIG_SENSORS_MCP3021=m
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
CONFIG_SENSORS_LM63=m
# CONFIG_SENSORS_LM70 is not set
CONFIG_SENSORS_LM73=m
CONFIG_SENSORS_LM75=m
CONFIG_SENSORS_LM77=m
CONFIG_SENSORS_LM78=m
CONFIG_SENSORS_LM80=m
CONFIG_SENSORS_LM83=m
CONFIG_SENSORS_LM85=m
CONFIG_SENSORS_LM87=m
CONFIG_SENSORS_LM90=m
CONFIG_SENSORS_LM92=m
CONFIG_SENSORS_LM93=m
CONFIG_SENSORS_LM95234=m
CONFIG_SENSORS_LM95241=m
CONFIG_SENSORS_LM95245=m
CONFIG_SENSORS_PC87360=m
CONFIG_SENSORS_PC87427=m
# CONFIG_SENSORS_NCT6683 is not set
CONFIG_SENSORS_NCT6775_CORE=m
CONFIG_SENSORS_NCT6775=m
# CONFIG_SENSORS_NCT6775_I2C is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
# CONFIG_SENSORS_OCC_P8_I2C is not set
# CONFIG_SENSORS_OXP is not set
CONFIG_SENSORS_PCF8591=m
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
CONFIG_SENSORS_SHT15=m
CONFIG_SENSORS_SHT21=m
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
CONFIG_SENSORS_SIS5595=m
CONFIG_SENSORS_DME1737=m
CONFIG_SENSORS_EMC1403=m
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC2305 is not set
CONFIG_SENSORS_EMC6W201=m
CONFIG_SENSORS_SMSC47M1=m
CONFIG_SENSORS_SMSC47M192=m
CONFIG_SENSORS_SMSC47B397=m
CONFIG_SENSORS_SCH56XX_COMMON=m
CONFIG_SENSORS_SCH5627=m
CONFIG_SENSORS_SCH5636=m
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
CONFIG_SENSORS_ADS7828=m
# CONFIG_SENSORS_ADS7871 is not set
CONFIG_SENSORS_AMC6821=m
CONFIG_SENSORS_INA209=m
CONFIG_SENSORS_INA2XX=m
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
CONFIG_SENSORS_THMC50=m
CONFIG_SENSORS_TMP102=m
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
CONFIG_SENSORS_TMP401=m
CONFIG_SENSORS_TMP421=m
# CONFIG_SENSORS_TMP464 is not set
# CONFIG_SENSORS_TMP513 is not set
CONFIG_SENSORS_VIA_CPUTEMP=m
CONFIG_SENSORS_VIA686A=m
CONFIG_SENSORS_VT1211=m
CONFIG_SENSORS_VT8231=m
# CONFIG_SENSORS_W83773G is not set
CONFIG_SENSORS_W83781D=m
CONFIG_SENSORS_W83791D=m
CONFIG_SENSORS_W83792D=m
CONFIG_SENSORS_W83793=m
CONFIG_SENSORS_W83795=m
# CONFIG_SENSORS_W83795_FANCTRL is not set
CONFIG_SENSORS_W83L785TS=m
CONFIG_SENSORS_W83L786NG=m
CONFIG_SENSORS_W83627HF=m
CONFIG_SENSORS_W83627EHF=m
# CONFIG_SENSORS_XGENE is not set

#
# ACPI drivers
#
CONFIG_SENSORS_ACPI_POWER=m
CONFIG_SENSORS_ATK0110=m
# CONFIG_SENSORS_ASUS_WMI is not set
# CONFIG_SENSORS_ASUS_EC is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_ACPI=y
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_THERMAL_GOV_BANG_BANG=y
CONFIG_THERMAL_GOV_USER_SPACE=y
# CONFIG_THERMAL_EMULATION is not set

#
# Intel thermal drivers
#
CONFIG_INTEL_POWERCLAMP=m
CONFIG_X86_THERMAL_VECTOR=y
CONFIG_INTEL_TCC=y
CONFIG_X86_PKG_TEMP_THERMAL=m
# CONFIG_INTEL_SOC_DTS_THERMAL is not set

#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# end of ACPI INT340X thermal drivers

CONFIG_INTEL_PCH_THERMAL=m
# CONFIG_INTEL_TCC_COOLING is not set
# CONFIG_INTEL_MENLOW is not set
# CONFIG_INTEL_HFI_THERMAL is not set
# end of Intel thermal drivers

CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
CONFIG_WATCHDOG_SYSFS=y
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
CONFIG_WDAT_WDT=m
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ADVANTECH_EC_WDT is not set
CONFIG_ALIM1535_WDT=m
CONFIG_ALIM7101_WDT=m
# CONFIG_EBC_C384_WDT is not set
# CONFIG_EXAR_WDT is not set
CONFIG_F71808E_WDT=m
# CONFIG_SP5100_TCO is not set
CONFIG_SBC_FITPC2_WATCHDOG=m
# CONFIG_EUROTECH_WDT is not set
CONFIG_IB700_WDT=m
CONFIG_IBMASR=m
# CONFIG_WAFER_WDT is not set
CONFIG_I6300ESB_WDT=y
CONFIG_IE6XX_WDT=m
CONFIG_ITCO_WDT=y
CONFIG_ITCO_VENDOR_SUPPORT=y
CONFIG_IT8712F_WDT=m
CONFIG_IT87_WDT=m
CONFIG_HP_WATCHDOG=m
CONFIG_HPWDT_NMI_DECODING=y
# CONFIG_SC1200_WDT is not set
# CONFIG_PC87413_WDT is not set
CONFIG_NV_TCO=m
# CONFIG_60XX_WDT is not set
# CONFIG_CPU5_WDT is not set
CONFIG_SMSC_SCH311X_WDT=m
# CONFIG_SMSC37B787_WDT is not set
# CONFIG_TQMX86_WDT is not set
CONFIG_VIA_WDT=m
CONFIG_W83627HF_WDT=m
CONFIG_W83877F_WDT=m
CONFIG_W83977F_WDT=m
CONFIG_MACHZ_WDT=m
# CONFIG_SBC_EPX_C3_WATCHDOG is not set
CONFIG_INTEL_MEI_WDT=m
# CONFIG_NI903X_WDT is not set
# CONFIG_NIC7018_WDT is not set
# CONFIG_MEN_A21_WDT is not set

#
# PCI-based Watchdog Cards
#
CONFIG_PCIPCWATCHDOG=m
CONFIG_WDTPCI=m

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_SMPRO is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_INTEL_QUARK_I2C_GPIO is not set
CONFIG_LPC_ICH=y
CONFIG_LPC_SCH=m
CONFIG_MFD_INTEL_LPSS=y
CONFIG_MFD_INTEL_LPSS_ACPI=y
CONFIG_MFD_INTEL_LPSS_PCI=y
# CONFIG_MFD_INTEL_PMC_BXT is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6370 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_MFD_OCELOT is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_SY7636A is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RT5120 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SI476X_CORE is not set
CONFIG_MFD_SM501=m
CONFIG_MFD_SM501_GPIO=y
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TQMX86 is not set
CONFIG_MFD_VX855=m
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_INTEL_M10_BMC_SPI is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
CONFIG_RC_CORE=m
CONFIG_LIRC=y
CONFIG_RC_MAP=m
CONFIG_RC_DECODERS=y
CONFIG_IR_IMON_DECODER=m
CONFIG_IR_JVC_DECODER=m
CONFIG_IR_MCE_KBD_DECODER=m
CONFIG_IR_NEC_DECODER=m
CONFIG_IR_RC5_DECODER=m
CONFIG_IR_RC6_DECODER=m
# CONFIG_IR_RCMM_DECODER is not set
CONFIG_IR_SANYO_DECODER=m
# CONFIG_IR_SHARP_DECODER is not set
CONFIG_IR_SONY_DECODER=m
# CONFIG_IR_XMP_DECODER is not set
CONFIG_RC_DEVICES=y
CONFIG_IR_ENE=m
CONFIG_IR_FINTEK=m
# CONFIG_IR_IGORPLUGUSB is not set
# CONFIG_IR_IGUANA is not set
# CONFIG_IR_IMON is not set
# CONFIG_IR_IMON_RAW is not set
CONFIG_IR_ITE_CIR=m
# CONFIG_IR_MCEUSB is not set
CONFIG_IR_NUVOTON=m
# CONFIG_IR_REDRAT3 is not set
CONFIG_IR_SERIAL=m
CONFIG_IR_SERIAL_TRANSMITTER=y
# CONFIG_IR_STREAMZAP is not set
# CONFIG_IR_TOY is not set
# CONFIG_IR_TTUSBIR is not set
CONFIG_IR_WINBOND_CIR=m
# CONFIG_RC_ATI_REMOTE is not set
# CONFIG_RC_LOOPBACK is not set
# CONFIG_RC_XBOX_DVD is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

CONFIG_MEDIA_SUPPORT=m
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
# CONFIG_MEDIA_PLATFORM_SUPPORT is not set
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#

#
# Media drivers
#
# CONFIG_MEDIA_USB_SUPPORT is not set
# CONFIG_MEDIA_PCI_SUPPORT is not set
# end of Media drivers

CONFIG_MEDIA_HIDE_ANCILLARY_SUBDRV=y

#
# Media ancillary drivers
#
# end of Media ancillary drivers

#
# Graphics support
#
CONFIG_APERTURE_HELPERS=y
CONFIG_VIDEO_NOMODESET=y
# CONFIG_AGP is not set
CONFIG_INTEL_GTT=m
CONFIG_VGA_SWITCHEROO=y
CONFIG_DRM=m
CONFIG_DRM_MIPI_DSI=y
CONFIG_DRM_KMS_HELPER=m
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
CONFIG_DRM_DISPLAY_HELPER=m
CONFIG_DRM_DISPLAY_DP_HELPER=y
CONFIG_DRM_DISPLAY_HDCP_HELPER=y
CONFIG_DRM_DISPLAY_HDMI_HELPER=y
CONFIG_DRM_DP_AUX_CHARDEV=y
# CONFIG_DRM_DP_CEC is not set
CONFIG_DRM_TTM=m
CONFIG_DRM_BUDDY=m
CONFIG_DRM_VRAM_HELPER=m
CONFIG_DRM_TTM_HELPER=m
CONFIG_DRM_GEM_SHMEM_HELPER=m

#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_I2C_NXP_TDA9950 is not set
# end of I2C encoder or helper chips

#
# ARM devices
#
# end of ARM devices

# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
# CONFIG_DRM_NOUVEAU is not set
CONFIG_DRM_I915=m
CONFIG_DRM_I915_FORCE_PROBE=""
CONFIG_DRM_I915_CAPTURE_ERROR=y
CONFIG_DRM_I915_COMPRESS_ERROR=y
CONFIG_DRM_I915_USERPTR=y
# CONFIG_DRM_I915_GVT_KVMGT is not set
CONFIG_DRM_I915_REQUEST_TIMEOUT=20000
CONFIG_DRM_I915_FENCE_TIMEOUT=10000
CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND=250
CONFIG_DRM_I915_HEARTBEAT_INTERVAL=2500
CONFIG_DRM_I915_PREEMPT_TIMEOUT=640
CONFIG_DRM_I915_PREEMPT_TIMEOUT_COMPUTE=7500
CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT=8000
CONFIG_DRM_I915_STOP_TIMEOUT=100
CONFIG_DRM_I915_TIMESLICE_DURATION=1
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VKMS is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
CONFIG_DRM_AST=m
# CONFIG_DRM_MGAG200 is not set
CONFIG_DRM_QXL=m
CONFIG_DRM_VIRTIO_GPU=m
CONFIG_DRM_PANEL=y

#
# Display Panels
#
# CONFIG_DRM_PANEL_AUO_A030JTN01 is not set
# CONFIG_DRM_PANEL_ORISETECH_OTA5601A is not set
# CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN is not set
# CONFIG_DRM_PANEL_WIDECHIPS_WS2401 is not set
# end of Display Panels

CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y

#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# end of Display Interface Bridges

# CONFIG_DRM_ETNAVIV is not set
CONFIG_DRM_BOCHS=m
CONFIG_DRM_CIRRUS_QEMU=m
# CONFIG_DRM_GM12U320 is not set
# CONFIG_DRM_PANEL_MIPI_DBI is not set
# CONFIG_DRM_SIMPLEDRM is not set
# CONFIG_TINYDRM_HX8357D is not set
# CONFIG_TINYDRM_ILI9163 is not set
# CONFIG_TINYDRM_ILI9225 is not set
# CONFIG_TINYDRM_ILI9341 is not set
# CONFIG_TINYDRM_ILI9486 is not set
# CONFIG_TINYDRM_MI0283QT is not set
# CONFIG_TINYDRM_REPAPER is not set
# CONFIG_TINYDRM_ST7586 is not set
# CONFIG_TINYDRM_ST7735R is not set
# CONFIG_DRM_VBOXVIDEO is not set
# CONFIG_DRM_GUD is not set
# CONFIG_DRM_SSD130X is not set
# CONFIG_DRM_HYPERV is not set
# CONFIG_DRM_LEGACY is not set
CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y
CONFIG_DRM_PRIVACY_SCREEN=y

#
# Frame buffer Devices
#
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SYS_FILLRECT=m
CONFIG_FB_SYS_COPYAREA=m
CONFIG_FB_SYS_IMAGEBLIT=m
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=m
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_MODE_HELPERS is not set
CONFIG_FB_TILEBLITTING=y

#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_UVESA is not set
CONFIG_FB_VESA=y
CONFIG_FB_EFI=y
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_VIA is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SM501 is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
CONFIG_FB_HYPERV=m
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SSD1307 is not set
# CONFIG_FB_SM712 is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
CONFIG_LCD_CLASS_DEVICE=m
# CONFIG_LCD_L4F00242T03 is not set
# CONFIG_LCD_LMS283GF05 is not set
# CONFIG_LCD_LTV350QV is not set
# CONFIG_LCD_ILI922X is not set
# CONFIG_LCD_ILI9320 is not set
# CONFIG_LCD_TDO24M is not set
# CONFIG_LCD_VGG2432A4 is not set
CONFIG_LCD_PLATFORM=m
# CONFIG_LCD_AMS369FG06 is not set
# CONFIG_LCD_LMS501KF03 is not set
# CONFIG_LCD_HX8357 is not set
# CONFIG_LCD_OTM3225A is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
# CONFIG_BACKLIGHT_KTZ8866 is not set
# CONFIG_BACKLIGHT_PWM is not set
CONFIG_BACKLIGHT_APPLE=m
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
CONFIG_BACKLIGHT_LP855X=m
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# end of Backlight & LCD device support

CONFIG_HDMI=y

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
CONFIG_FRAMEBUFFER_CONSOLE=y
# CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION is not set
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
# CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER is not set
# end of Console display driver support

CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
# CONFIG_LOGO_LINUX_VGA16 is not set
CONFIG_LOGO_LINUX_CLUT224=y
# end of Graphics support

# CONFIG_DRM_ACCEL is not set
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HID_BATTERY_STRENGTH=y
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=m
# CONFIG_HID_ACCUTOUCH is not set
CONFIG_HID_ACRUX=m
# CONFIG_HID_ACRUX_FF is not set
CONFIG_HID_APPLE=m
# CONFIG_HID_APPLEIR is not set
CONFIG_HID_ASUS=m
CONFIG_HID_AUREAL=m
CONFIG_HID_BELKIN=m
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
CONFIG_HID_CHERRY=m
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
CONFIG_HID_CMEDIA=m
# CONFIG_HID_CP2112 is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
# CONFIG_DRAGONRISE_FF is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
CONFIG_HID_ELECOM=m
# CONFIG_HID_ELO is not set
# CONFIG_HID_EVISION is not set
CONFIG_HID_EZKEY=m
# CONFIG_HID_FT260 is not set
CONFIG_HID_GEMBIRD=m
CONFIG_HID_GFRM=m
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
CONFIG_HID_KEYTOUCH=m
CONFIG_HID_KYE=m
# CONFIG_HID_UCLOGIC is not set
CONFIG_HID_WALTOP=m
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_VRC2 is not set
# CONFIG_HID_XIAOMI is not set
CONFIG_HID_GYRATION=m
CONFIG_HID_ICADE=m
CONFIG_HID_ITE=m
CONFIG_HID_JABRA=m
CONFIG_HID_TWINHAN=m
CONFIG_HID_KENSINGTON=m
CONFIG_HID_LCPOWER=m
CONFIG_HID_LED=m
CONFIG_HID_LENOVO=m
# CONFIG_HID_LETSKETCH is not set
CONFIG_HID_LOGITECH=m
CONFIG_HID_LOGITECH_DJ=m
CONFIG_HID_LOGITECH_HIDPP=m
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
CONFIG_HID_MAGICMOUSE=y
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
# CONFIG_HID_MEGAWORLD_FF is not set
# CONFIG_HID_REDRAGON is not set
CONFIG_HID_MICROSOFT=m
CONFIG_HID_MONTEREY=m
CONFIG_HID_MULTITOUCH=m
# CONFIG_HID_NINTENDO is not set
CONFIG_HID_NTI=m
# CONFIG_HID_NTRIG is not set
CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
# CONFIG_PANTHERLORD_FF is not set
# CONFIG_HID_PENMOUNT is not set
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_PICOLCD_FB=y
CONFIG_HID_PICOLCD_BACKLIGHT=y
CONFIG_HID_PICOLCD_LCD=y
CONFIG_HID_PICOLCD_LEDS=y
CONFIG_HID_PICOLCD_CIR=y
CONFIG_HID_PLANTRONICS=m
# CONFIG_HID_PXRC is not set
# CONFIG_HID_RAZER is not set
CONFIG_HID_PRIMAX=m
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
CONFIG_HID_SAITEK=m
CONFIG_HID_SAMSUNG=m
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SIGMAMICRO is not set
# CONFIG_HID_SONY is not set
CONFIG_HID_SPEEDLINK=m
# CONFIG_HID_STEAM is not set
CONFIG_HID_STEELSERIES=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_RMI=m
CONFIG_HID_GREENASIA=m
# CONFIG_GREENASIA_FF is not set
CONFIG_HID_HYPERV_MOUSE=m
CONFIG_HID_SMARTJOYPLUS=m
# CONFIG_SMARTJOYPLUS_FF is not set
CONFIG_HID_TIVO=m
CONFIG_HID_TOPSEED=m
# CONFIG_HID_TOPRE is not set
CONFIG_HID_THINGM=m
CONFIG_HID_THRUSTMASTER=m
# CONFIG_THRUSTMASTER_FF is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
CONFIG_HID_WIIMOTE=m
CONFIG_HID_XINMO=m
CONFIG_HID_ZEROPLUS=m
# CONFIG_ZEROPLUS_FF is not set
CONFIG_HID_ZYDACRON=m
CONFIG_HID_SENSOR_HUB=y
CONFIG_HID_SENSOR_CUSTOM_SENSOR=m
CONFIG_HID_ALPS=m
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers

#
# HID-BPF support
#
# CONFIG_HID_BPF is not set
# end of HID-BPF support

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
# end of USB HID support

CONFIG_I2C_HID=m
# CONFIG_I2C_HID_ACPI is not set

#
# Intel ISH HID support
#
# CONFIG_INTEL_ISH_HID is not set
# end of Intel ISH HID support

#
# AMD SFH HID Support
#
# CONFIG_AMD_SFH_HID is not set
# end of AMD SFH HID Support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
CONFIG_USB_PCI=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_AUTOSUSPEND_DELAY=2
CONFIG_USB_MON=y

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
CONFIG_USB_XHCI_HCD=y
# CONFIG_USB_XHCI_DBGCAP is not set
CONFIG_USB_XHCI_PCI=y
# CONFIG_USB_XHCI_PCI_RENESAS is not set
# CONFIG_USB_XHCI_PLATFORM is not set
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=y
# CONFIG_USB_EHCI_FSL is not set
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PCI=y
# CONFIG_USB_OHCI_HCD_PLATFORM is not set
CONFIG_USB_UHCI_HCD=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
# CONFIG_USB_UAS is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set

#
# USB dual-mode controller drivers
#
# CONFIG_USB_CDNS_SUPPORT is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_USS720 is not set
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set

#
# USB Physical Layer drivers
#
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# end of USB Physical Layer drivers

# CONFIG_USB_GADGET is not set
CONFIG_TYPEC=y
# CONFIG_TYPEC_TCPM is not set
CONFIG_TYPEC_UCSI=y
# CONFIG_UCSI_CCG is not set
CONFIG_UCSI_ACPI=y
# CONFIG_UCSI_STM32G0 is not set
# CONFIG_TYPEC_TPS6598X is not set
# CONFIG_TYPEC_RT1719 is not set
# CONFIG_TYPEC_STUSB160X is not set
# CONFIG_TYPEC_WUSB3801 is not set

#
# USB Type-C Multiplexer/DeMultiplexer Switch support
#
# CONFIG_TYPEC_MUX_FSA4480 is not set
# CONFIG_TYPEC_MUX_GPIO_SBU is not set
# CONFIG_TYPEC_MUX_PI3USB30532 is not set
# end of USB Type-C Multiplexer/DeMultiplexer Switch support

#
# USB Type-C Alternate Mode drivers
#
# CONFIG_TYPEC_DP_ALTMODE is not set
# end of USB Type-C Alternate Mode drivers

# CONFIG_USB_ROLE_SWITCH is not set
CONFIG_MMC=m
CONFIG_MMC_BLOCK=m
CONFIG_MMC_BLOCK_MINORS=8
CONFIG_SDIO_UART=m
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
CONFIG_MMC_SDHCI=m
CONFIG_MMC_SDHCI_IO_ACCESSORS=y
CONFIG_MMC_SDHCI_PCI=m
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI_ACPI=m
CONFIG_MMC_SDHCI_PLTFM=m
# CONFIG_MMC_SDHCI_F_SDH30 is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_CB710 is not set
# CONFIG_MMC_VIA_SDMMC is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_CQHCI=m
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_TOSHIBA_PCI is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MMC_SDHCI_XENON is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_APU is not set
CONFIG_LEDS_LM3530=m
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_PCA9532 is not set
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_LP3944=m
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_BD2802 is not set
CONFIG_LEDS_INTEL_SS4200=m
CONFIG_LEDS_LT3593=m
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_IS31FL319X is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
CONFIG_LEDS_BLINKM=m
CONFIG_LEDS_MLXCPLD=m
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_NIC78BX is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set

#
# Flash and Torch LED drivers
#

#
# RGB LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_ONESHOT=m
# CONFIG_LEDS_TRIGGER_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_BACKLIGHT=m
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
CONFIG_LEDS_TRIGGER_GPIO=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m

#
# iptables trigger is under Netfilter config (LED target)
#
CONFIG_LEDS_TRIGGER_TRANSIENT=m
CONFIG_LEDS_TRIGGER_CAMERA=m
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
CONFIG_LEDS_TRIGGER_AUDIO=m
# CONFIG_LEDS_TRIGGER_TTY is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ON_DEMAND_PAGING=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS=y
CONFIG_INFINIBAND_VIRT_DMA=y
# CONFIG_INFINIBAND_EFA is not set
# CONFIG_INFINIBAND_ERDMA is not set
# CONFIG_MLX4_INFINIBAND is not set
# CONFIG_INFINIBAND_MTHCA is not set
# CONFIG_INFINIBAND_OCRDMA is not set
# CONFIG_INFINIBAND_USNIC is not set
# CONFIG_INFINIBAND_RDMAVT is not set
CONFIG_RDMA_RXE=m
CONFIG_RDMA_SIW=m
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
# CONFIG_INFINIBAND_IPOIB_DEBUG_DATA is not set
CONFIG_INFINIBAND_SRP=m
# CONFIG_INFINIBAND_ISER is not set
# CONFIG_INFINIBAND_RTRS_CLIENT is not set
# CONFIG_INFINIBAND_RTRS_SERVER is not set
# CONFIG_INFINIBAND_OPA_VNIC is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_GHES=y
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I3000=m
CONFIG_EDAC_I3200=m
CONFIG_EDAC_IE31200=m
CONFIG_EDAC_X38=m
CONFIG_EDAC_I5400=m
CONFIG_EDAC_I7CORE=m
CONFIG_EDAC_I5100=m
CONFIG_EDAC_I7300=m
CONFIG_EDAC_SBRIDGE=m
CONFIG_EDAC_SKX=m
# CONFIG_EDAC_I10NM is not set
CONFIG_EDAC_PND2=m
# CONFIG_EDAC_IGEN6 is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
# CONFIG_RTC_SYSTOHC is not set
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_DS1307=m
# CONFIG_RTC_DRV_DS1307_CENTURY is not set
CONFIG_RTC_DRV_DS1374=m
# CONFIG_RTC_DRV_DS1374_WDT is not set
CONFIG_RTC_DRV_DS1672=m
CONFIG_RTC_DRV_MAX6900=m
CONFIG_RTC_DRV_RS5C372=m
CONFIG_RTC_DRV_ISL1208=m
CONFIG_RTC_DRV_ISL12022=m
CONFIG_RTC_DRV_X1205=m
CONFIG_RTC_DRV_PCF8523=m
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
CONFIG_RTC_DRV_PCF8563=m
CONFIG_RTC_DRV_PCF8583=m
CONFIG_RTC_DRV_M41T80=m
CONFIG_RTC_DRV_M41T80_WDT=y
CONFIG_RTC_DRV_BQ32K=m
# CONFIG_RTC_DRV_S35390A is not set
CONFIG_RTC_DRV_FM3130=m
# CONFIG_RTC_DRV_RX8010 is not set
CONFIG_RTC_DRV_RX8581=m
CONFIG_RTC_DRV_RX8025=m
CONFIG_RTC_DRV_EM3027=m
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
CONFIG_RTC_DRV_RX4581=m
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
CONFIG_RTC_DRV_DS3232=m
CONFIG_RTC_DRV_DS3232_HWMON=y
# CONFIG_RTC_DRV_PCF2127 is not set
CONFIG_RTC_DRV_RV3029C2=m
# CONFIG_RTC_DRV_RV3029_HWMON is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
CONFIG_RTC_DRV_DS1286=m
CONFIG_RTC_DRV_DS1511=m
CONFIG_RTC_DRV_DS1553=m
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
CONFIG_RTC_DRV_DS1742=m
CONFIG_RTC_DRV_DS2404=m
CONFIG_RTC_DRV_STK17TA8=m
# CONFIG_RTC_DRV_M48T86 is not set
CONFIG_RTC_DRV_M48T35=m
CONFIG_RTC_DRV_M48T59=m
CONFIG_RTC_DRV_MSM6242=m
CONFIG_RTC_DRV_BQ4802=m
CONFIG_RTC_DRV_RP5C01=m

#
# on-CPU RTC drivers
#
# CONFIG_RTC_DRV_FTRTC010 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_ACPI=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_INTEL_IDMA64=m
CONFIG_INTEL_IDXD_BUS=m
CONFIG_INTEL_IDXD=m
# CONFIG_INTEL_IDXD_COMPAT is not set
# CONFIG_INTEL_IDXD_SVM is not set
# CONFIG_INTEL_IDXD_PERFMON is not set
CONFIG_INTEL_IOATDMA=m
# CONFIG_PLX_DMA is not set
# CONFIG_XILINX_XDMA is not set
# CONFIG_AMD_PTDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
CONFIG_DW_DMAC_CORE=y
CONFIG_DW_DMAC=m
CONFIG_DW_DMAC_PCI=y
# CONFIG_DW_EDMA is not set
CONFIG_HSU_DMA=y
# CONFIG_SF_PDMA is not set
# CONFIG_INTEL_LDMA is not set

#
# DMA Clients
#
CONFIG_ASYNC_TX_DMA=y
CONFIG_DMATEST=m
CONFIG_DMA_ENGINE_RAID=y

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

CONFIG_DCA=m
# CONFIG_AUXDISPLAY is not set
# CONFIG_PANEL is not set
# CONFIG_UIO is not set
CONFIG_VFIO=m
CONFIG_VFIO_CONTAINER=y
CONFIG_VFIO_IOMMU_TYPE1=m
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_VIRQFD=y
CONFIG_VFIO_PCI_CORE=m
CONFIG_VFIO_PCI_MMAP=y
CONFIG_VFIO_PCI_INTX=y
CONFIG_VFIO_PCI=m
# CONFIG_VFIO_PCI_VGA is not set
# CONFIG_VFIO_PCI_IGD is not set
CONFIG_IRQ_BYPASS_MANAGER=m
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_ANCHOR=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_PCI_LIB=y
CONFIG_VIRTIO_PCI_LIB_LEGACY=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_PCI_LEGACY=y
# CONFIG_VIRTIO_PMEM is not set
CONFIG_VIRTIO_BALLOON=m
# CONFIG_VIRTIO_MEM is not set
CONFIG_VIRTIO_INPUT=m
# CONFIG_VIRTIO_MMIO is not set
CONFIG_VIRTIO_DMA_SHARED_BUFFER=m
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=m
CONFIG_VHOST=m
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=m
CONFIG_VHOST_VSOCK=m
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
CONFIG_HYPERV=y
CONFIG_HYPERV_TIMER=y
CONFIG_HYPERV_UTILS=m
CONFIG_HYPERV_BALLOON=m
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_SURFACE_PLATFORMS=y
# CONFIG_SURFACE3_WMI is not set
# CONFIG_SURFACE_3_POWER_OPREGION is not set
# CONFIG_SURFACE_GPE is not set
# CONFIG_SURFACE_HOTPLUG is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
CONFIG_X86_PLATFORM_DEVICES=y
CONFIG_ACPI_WMI=m
CONFIG_WMI_BMOF=m
# CONFIG_HUAWEI_WMI is not set
# CONFIG_UV_SYSFS is not set
CONFIG_MXM_WMI=m
# CONFIG_PEAQ_WMI is not set
# CONFIG_NVIDIA_WMI_EC_BACKLIGHT is not set
# CONFIG_XIAOMI_WMI is not set
# CONFIG_GIGABYTE_WMI is not set
# CONFIG_YOGABOOK_WMI is not set
CONFIG_ACERHDF=m
# CONFIG_ACER_WIRELESS is not set
CONFIG_ACER_WMI=m
# CONFIG_AMD_PMF is not set
# CONFIG_AMD_PMC is not set
# CONFIG_AMD_HSMP is not set
# CONFIG_ADV_SWBUTTON is not set
CONFIG_APPLE_GMUX=m
CONFIG_ASUS_LAPTOP=m
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ASUS_WMI=m
CONFIG_ASUS_NB_WMI=m
# CONFIG_ASUS_TF103C_DOCK is not set
# CONFIG_MERAKI_MX100 is not set
CONFIG_EEEPC_LAPTOP=m
CONFIG_EEEPC_WMI=m
# CONFIG_X86_PLATFORM_DRIVERS_DELL is not set
CONFIG_AMILO_RFKILL=m
CONFIG_FUJITSU_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
# CONFIG_GPD_POCKET_FAN is not set
# CONFIG_X86_PLATFORM_DRIVERS_HP is not set
# CONFIG_WIRELESS_HOTKEY is not set
# CONFIG_IBM_RTL is not set
CONFIG_IDEAPAD_LAPTOP=m
CONFIG_SENSORS_HDAPS=m
CONFIG_THINKPAD_ACPI=m
# CONFIG_THINKPAD_ACPI_DEBUGFACILITIES is not set
# CONFIG_THINKPAD_ACPI_DEBUG is not set
# CONFIG_THINKPAD_ACPI_UNSAFE_LEDS is not set
CONFIG_THINKPAD_ACPI_VIDEO=y
CONFIG_THINKPAD_ACPI_HOTKEY_POLL=y
# CONFIG_THINKPAD_LMI is not set
# CONFIG_INTEL_ATOMISP2_PM is not set
# CONFIG_INTEL_IFS is not set
# CONFIG_INTEL_SAR_INT1092 is not set
CONFIG_INTEL_PMC_CORE=m

#
# Intel Speed Select Technology interface support
#
# CONFIG_INTEL_SPEED_SELECT_INTERFACE is not set
# end of Intel Speed Select Technology interface support

CONFIG_INTEL_WMI=y
# CONFIG_INTEL_WMI_SBL_FW_UPDATE is not set
CONFIG_INTEL_WMI_THUNDERBOLT=m

#
# Intel Uncore Frequency Control
#
# CONFIG_INTEL_UNCORE_FREQ_CONTROL is not set
# end of Intel Uncore Frequency Control

CONFIG_INTEL_HID_EVENT=m
CONFIG_INTEL_VBTN=m
# CONFIG_INTEL_INT0002_VGPIO is not set
CONFIG_INTEL_OAKTRAIL=m
# CONFIG_INTEL_PUNIT_IPC is not set
CONFIG_INTEL_RST=m
# CONFIG_INTEL_SMARTCONNECT is not set
CONFIG_INTEL_TURBO_MAX_3=y
# CONFIG_INTEL_VSEC is not set
CONFIG_MSI_LAPTOP=m
CONFIG_MSI_WMI=m
# CONFIG_PCENGINES_APU2 is not set
# CONFIG_BARCO_P50_GPIO is not set
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_SAMSUNG_Q10=m
CONFIG_TOSHIBA_BT_RFKILL=m
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
CONFIG_ACPI_CMPC=m
CONFIG_COMPAL_LAPTOP=m
# CONFIG_LG_LAPTOP is not set
CONFIG_PANASONIC_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_SONYPI_COMPAT=y
# CONFIG_SYSTEM76_ACPI is not set
CONFIG_TOPSTAR_LAPTOP=m
# CONFIG_SERIAL_MULTI_INSTANTIATE is not set
CONFIG_MLX_PLATFORM=m
CONFIG_INTEL_IPS=m
# CONFIG_INTEL_SCU_PCI is not set
# CONFIG_INTEL_SCU_PLATFORM is not set
# CONFIG_SIEMENS_SIMATIC_IPC is not set
# CONFIG_WINMATE_FM07_KEYS is not set
CONFIG_P2SB=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers

CONFIG_MAILBOX=y
CONFIG_PCC=y
# CONFIG_ALTERA_MBOX is not set
CONFIG_IOMMU_IOVA=y
CONFIG_IOASID=y
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y

#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support

# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_DMA_LAZY=y
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_SVA=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
CONFIG_INTEL_IOMMU_SVM=y
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON=y
CONFIG_INTEL_IOMMU_PERF_EVENTS=y
# CONFIG_IOMMUFD is not set
CONFIG_IRQ_REMAP=y
CONFIG_HYPERV_IOMMU=y
# CONFIG_VIRTIO_IOMMU is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers

# CONFIG_WPCM450_SOC is not set

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
CONFIG_NTB=m
# CONFIG_NTB_MSI is not set
# CONFIG_NTB_AMD is not set
# CONFIG_NTB_IDT is not set
# CONFIG_NTB_INTEL is not set
# CONFIG_NTB_EPF is not set
# CONFIG_NTB_SWITCHTEC is not set
# CONFIG_NTB_PINGPONG is not set
# CONFIG_NTB_TOOL is not set
# CONFIG_NTB_PERF is not set
# CONFIG_NTB_TRANSPORT is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_CLK is not set
# CONFIG_PWM_DWC is not set
CONFIG_PWM_LPSS=m
CONFIG_PWM_LPSS_PCI=m
CONFIG_PWM_LPSS_PLATFORM=m
# CONFIG_PWM_PCA9685 is not set

#
# IRQ chip support
#
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_USB_LGM_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# end of PHY Subsystem

CONFIG_POWERCAP=y
CONFIG_INTEL_RAPL_CORE=m
CONFIG_INTEL_RAPL=m
CONFIG_IDLE_INJECT=y
# CONFIG_MCB is not set

#
# Performance monitor support
#
# end of Performance monitor support

CONFIG_RAS=y
# CONFIG_RAS_CEC is not set
# CONFIG_USB4 is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

CONFIG_LIBNVDIMM=m
CONFIG_BLK_DEV_PMEM=m
CONFIG_ND_CLAIM=y
CONFIG_ND_BTT=m
CONFIG_BTT=y
CONFIG_ND_PFN=m
CONFIG_NVDIMM_PFN=y
CONFIG_NVDIMM_DAX=y
CONFIG_NVDIMM_KEYS=y
# CONFIG_NVDIMM_SECURITY_TEST is not set
CONFIG_DAX=y
CONFIG_DEV_DAX=m
CONFIG_DEV_DAX_PMEM=m
CONFIG_DEV_DAX_KMEM=m
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
CONFIG_INTEL_TH=m
CONFIG_INTEL_TH_PCI=m
CONFIG_INTEL_TH_ACPI=m
CONFIG_INTEL_TH_GTH=m
CONFIG_INTEL_TH_MSU=m
CONFIG_INTEL_TH_PTI=m
# CONFIG_INTEL_TH_DEBUG is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
CONFIG_LEGACY_DIRECT_IO=y
CONFIG_EXT2_FS=m
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_XFS_FS=m
CONFIG_XFS_SUPPORT_V4=y
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_XFS_ONLINE_SCRUB=y
CONFIG_XFS_ONLINE_REPAIR=y
CONFIG_XFS_DEBUG=y
CONFIG_XFS_ASSERT_FATAL=y
# CONFIG_GFS2_FS is not set
CONFIG_OCFS2_FS=m
CONFIG_OCFS2_FS_O2CB=m
CONFIG_OCFS2_FS_STATS=y
CONFIG_OCFS2_DEBUG_MASKLOG=y
# CONFIG_OCFS2_DEBUG_FS is not set
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
# CONFIG_BTRFS_FS_RUN_SANITY_TESTS is not set
# CONFIG_BTRFS_DEBUG is not set
# CONFIG_BTRFS_ASSERT is not set
# CONFIG_BTRFS_FS_REF_VERIFY is not set
# CONFIG_NILFS2_FS is not set
CONFIG_F2FS_FS=m
CONFIG_F2FS_STAT_FS=y
CONFIG_F2FS_FS_XATTR=y
CONFIG_F2FS_FS_POSIX_ACL=y
CONFIG_F2FS_FS_SECURITY=y
# CONFIG_F2FS_CHECK_FS is not set
# CONFIG_F2FS_FAULT_INJECTION is not set
# CONFIG_F2FS_FS_COMPRESSION is not set
CONFIG_F2FS_IOSTAT=y
# CONFIG_F2FS_UNFAIR_RWSEM is not set
# CONFIG_ZONEFS_FS is not set
CONFIG_FS_DAX=y
CONFIG_FS_DAX_PMD=y
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_ENCRYPTION_ALGS=y
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
CONFIG_PRINT_QUOTA_WARNING=y
# CONFIG_QUOTA_DEBUG is not set
CONFIG_QUOTA_TREE=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=m
CONFIG_CUSE=m
# CONFIG_VIRTIO_FS is not set
CONFIG_OVERLAY_FS=m
# CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
# CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW is not set
# CONFIG_OVERLAY_FS_INDEX is not set
# CONFIG_OVERLAY_FS_XINO_AUTO is not set
# CONFIG_OVERLAY_FS_METACOPY is not set

#
# Caches
#
CONFIG_NETFS_SUPPORT=y
# CONFIG_NETFS_STATS is not set
# CONFIG_FSCACHE is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
CONFIG_UDF_FS=m
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
# CONFIG_FAT_DEFAULT_UTF8 is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_VMCORE_DEVICE_DUMP=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
# CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON is not set
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_EFIVAR_FS=y
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
CONFIG_CRAMFS=m
CONFIG_CRAMFS_BLOCKDEV=y
CONFIG_SQUASHFS=m
# CONFIG_SQUASHFS_FILE_CACHE is not set
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT is not set
CONFIG_SQUASHFS_COMPILE_DECOMP_SINGLE=y
# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI is not set
# CONFIG_SQUASHFS_COMPILE_DECOMP_MULTI_PERCPU is not set
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_ZLIB=y
# CONFIG_SQUASHFS_LZ4 is not set
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
# CONFIG_SQUASHFS_ZSTD is not set
# CONFIG_SQUASHFS_4K_DEVBLK_SIZE is not set
# CONFIG_SQUASHFS_EMBEDDED is not set
CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_DEFLATE_COMPRESS=y
# CONFIG_PSTORE_LZO_COMPRESS is not set
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
# CONFIG_PSTORE_842_COMPRESS is not set
# CONFIG_PSTORE_ZSTD_COMPRESS is not set
CONFIG_PSTORE_COMPRESS=y
CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_FTRACE is not set
CONFIG_PSTORE_RAM=m
# CONFIG_PSTORE_BLK is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
# CONFIG_NFS_V2 is not set
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=m
# CONFIG_NFS_SWAP is not set
CONFIG_NFS_V4_1=y
CONFIG_NFS_V4_2=y
CONFIG_PNFS_FILE_LAYOUT=m
CONFIG_PNFS_BLOCK=m
CONFIG_PNFS_FLEXFILE_LAYOUT=m
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DEBUG=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFSD=m
# CONFIG_NFSD_V2 is not set
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_NFSD_PNFS=y
# CONFIG_NFSD_BLOCKLAYOUT is not set
CONFIG_NFSD_SCSILAYOUT=y
# CONFIG_NFSD_FLEXFILELAYOUT is not set
# CONFIG_NFSD_V4_2_INTER_SSC is not set
CONFIG_NFSD_V4_SECURITY_LABEL=y
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_NFS_V4_2_SSC_HELPER=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_BACKCHANNEL=y
CONFIG_RPCSEC_GSS_KRB5=m
CONFIG_RPCSEC_GSS_KRB5_CRYPTOSYSTEM=y
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_DES is not set
CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA1=y
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_CAMELLIA is not set
# CONFIG_RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA2 is not set
CONFIG_SUNRPC_DEBUG=y
# CONFIG_SUNRPC_XPRT_RDMA is not set
# CONFIG_CEPH_FS is not set
CONFIG_CIFS=m
CONFIG_CIFS_STATS2=y
CONFIG_CIFS_ALLOW_INSECURE_LEGACY=y
CONFIG_CIFS_UPCALL=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_CIFS_DEBUG=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_DEBUG_DUMP_KEYS is not set
CONFIG_CIFS_DFS_UPCALL=y
# CONFIG_CIFS_SWN_UPCALL is not set
# CONFIG_CIFS_SMB_DIRECT is not set
# CONFIG_SMB_SERVER is not set
CONFIG_SMBFS_COMMON=m
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_9P_FS=y
CONFIG_9P_FS_POSIX_ACL=y
# CONFIG_9P_FS_SECURITY is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
CONFIG_NLS_CODEPAGE_775=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
CONFIG_NLS_CODEPAGE_857=m
CONFIG_NLS_CODEPAGE_860=m
CONFIG_NLS_CODEPAGE_861=m
CONFIG_NLS_CODEPAGE_862=m
CONFIG_NLS_CODEPAGE_863=m
CONFIG_NLS_CODEPAGE_864=m
CONFIG_NLS_CODEPAGE_865=m
CONFIG_NLS_CODEPAGE_866=m
CONFIG_NLS_CODEPAGE_869=m
CONFIG_NLS_CODEPAGE_936=m
CONFIG_NLS_CODEPAGE_950=m
CONFIG_NLS_CODEPAGE_932=m
CONFIG_NLS_CODEPAGE_949=m
CONFIG_NLS_CODEPAGE_874=m
CONFIG_NLS_ISO8859_8=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_CODEPAGE_1251=m
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_ISO8859_3=m
CONFIG_NLS_ISO8859_4=m
CONFIG_NLS_ISO8859_5=m
CONFIG_NLS_ISO8859_6=m
CONFIG_NLS_ISO8859_7=m
CONFIG_NLS_ISO8859_9=m
CONFIG_NLS_ISO8859_13=m
CONFIG_NLS_ISO8859_14=m
CONFIG_NLS_ISO8859_15=m
CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_MAC_ROMAN=m
CONFIG_NLS_MAC_CELTIC=m
CONFIG_NLS_MAC_CENTEURO=m
CONFIG_NLS_MAC_CROATIAN=m
CONFIG_NLS_MAC_CYRILLIC=m
CONFIG_NLS_MAC_GAELIC=m
CONFIG_NLS_MAC_GREEK=m
CONFIG_NLS_MAC_ICELAND=m
CONFIG_NLS_MAC_INUIT=m
CONFIG_NLS_MAC_ROMANIAN=m
CONFIG_NLS_MAC_TURKISH=m
CONFIG_NLS_UTF8=m
# CONFIG_DLM is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_TRUSTED_KEYS=y
CONFIG_TRUSTED_KEYS_TPM=y
CONFIG_ENCRYPTED_KEYS=y
# CONFIG_USER_DECRYPTED_DATA is not set
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_NETWORK=y
# CONFIG_SECURITY_INFINIBAND is not set
CONFIG_SECURITY_NETWORK_XFRM=y
# CONFIG_SECURITY_PATH is not set
CONFIG_INTEL_TXT=y
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
# CONFIG_STATIC_USERMODEHELPER is not set
# CONFIG_SECURITY_SELINUX is not set
# CONFIG_SECURITY_SMACK is not set
# CONFIG_SECURITY_TOMOYO is not set
# CONFIG_SECURITY_APPARMOR is not set
# CONFIG_SECURITY_LOADPIN is not set
CONFIG_SECURITY_YAMA=y
# CONFIG_SECURITY_SAFESETID is not set
# CONFIG_SECURITY_LOCKDOWN_LSM is not set
# CONFIG_SECURITY_LANDLOCK is not set
CONFIG_INTEGRITY=y
CONFIG_INTEGRITY_SIGNATURE=y
CONFIG_INTEGRITY_ASYMMETRIC_KEYS=y
CONFIG_INTEGRITY_TRUSTED_KEYRING=y
# CONFIG_INTEGRITY_PLATFORM_KEYRING is not set
CONFIG_INTEGRITY_AUDIT=y
# CONFIG_IMA is not set
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
# CONFIG_EVM is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set
# CONFIG_GCC_PLUGIN_STACKLEAK is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# CONFIG_RANDSTRUCT_PERFORMANCE is not set
# end of Kernel hardening options
# end of Security options

CONFIG_XOR_BLOCKS=m
CONFIG_ASYNC_CORE=m
CONFIG_ASYNC_MEMCPY=m
CONFIG_ASYNC_XOR=m
CONFIG_ASYNC_PQ=m
CONFIG_ASYNC_RAID6_RECOV=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=m
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=m
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_SIMD=y
# end of Crypto core or helper

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
# CONFIG_CRYPTO_DH_RFC7919_GROUPS is not set
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
# end of Public-key cryptography

#
# Block ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
CONFIG_CRYPTO_ANUBIS=m
# CONFIG_CRYPTO_ARIA is not set
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
# CONFIG_CRYPTO_SM4_GENERIC is not set
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m
# end of Block ciphers

#
# Length-preserving ciphers and modes
#
# CONFIG_CRYPTO_ADIANTUM is not set
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=y
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_HCTR2 is not set
# CONFIG_CRYPTO_KEYWRAP is not set
CONFIG_CRYPTO_LRW=m
# CONFIG_CRYPTO_OFB is not set
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
# end of Length-preserving ciphers and modes

#
# AEAD (authenticated encryption with associated data) ciphers
#
# CONFIG_CRYPTO_AEGIS128 is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=m
CONFIG_CRYPTO_ESSIV=m
# end of AEAD (authenticated encryption with associated data) ciphers

#
# Hashes, digests, and MACs
#
CONFIG_CRYPTO_BLAKE2B=m
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
# CONFIG_CRYPTO_POLY1305 is not set
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=m
# CONFIG_CRYPTO_SM3_GENERIC is not set
# CONFIG_CRYPTO_STREEBOG is not set
CONFIG_CRYPTO_VMAC=m
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_XXHASH=m
# end of Hashes, digests, and MACs

#
# CRCs (cyclic redundancy checks)
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_CRC64_ROCKSOFT=m
# end of CRCs (cyclic redundancy checks)

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
# CONFIG_CRYPTO_LZ4 is not set
# CONFIG_CRYPTO_LZ4HC is not set
# CONFIG_CRYPTO_ZSTD is not set
# end of Compression

#
# Random number generation
#
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
# end of Random number generation

#
# Userspace interface
#
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
CONFIG_CRYPTO_USER_API_AEAD=y
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# CONFIG_CRYPTO_STATS is not set
# end of Userspace interface

CONFIG_CRYPTO_HASH_INFO=y

#
# Accelerated Cryptographic Algorithms for CPU (x86)
#
# CONFIG_CRYPTO_CURVE25519_X86 is not set
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_BLOWFISH_X86_64=m
CONFIG_CRYPTO_CAMELLIA_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64=m
CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64=m
CONFIG_CRYPTO_CAST5_AVX_X86_64=m
CONFIG_CRYPTO_CAST6_AVX_X86_64=m
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX_X86_64=m
CONFIG_CRYPTO_SERPENT_AVX2_X86_64=m
# CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64 is not set
CONFIG_CRYPTO_TWOFISH_X86_64=m
CONFIG_CRYPTO_TWOFISH_X86_64_3WAY=m
CONFIG_CRYPTO_TWOFISH_AVX_X86_64=m
# CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_ARIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_ARIA_GFNI_AVX512_X86_64 is not set
CONFIG_CRYPTO_CHACHA20_X86_64=m
# CONFIG_CRYPTO_AEGIS128_AESNI_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_SSE2 is not set
# CONFIG_CRYPTO_NHPOLY1305_AVX2 is not set
# CONFIG_CRYPTO_BLAKE2S_X86 is not set
# CONFIG_CRYPTO_POLYVAL_CLMUL_NI is not set
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
CONFIG_CRYPTO_SHA1_SSSE3=y
CONFIG_CRYPTO_SHA256_SSSE3=y
CONFIG_CRYPTO_SHA512_SSSE3=m
# CONFIG_CRYPTO_SM3_AVX_X86_64 is not set
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m
CONFIG_CRYPTO_CRC32C_INTEL=m
CONFIG_CRYPTO_CRC32_PCLMUL=m
CONFIG_CRYPTO_CRCT10DIF_PCLMUL=m
# end of Accelerated Cryptographic Algorithms for CPU (x86)

# CONFIG_CRYPTO_HW is not set
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
CONFIG_SIGNED_PE_FILE_VERIFICATION=y
# CONFIG_FIPS_SIGNATURE_SELFTEST is not set

#
# Certificates for signature checking
#
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
CONFIG_MODULE_SIG_KEY_TYPE_RSA=y
# CONFIG_MODULE_SIG_KEY_TYPE_ECDSA is not set
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# CONFIG_SYSTEM_REVOCATION_LIST is not set
# CONFIG_SYSTEM_BLACKLIST_AUTH_UPDATE is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_RAID6_PQ=m
CONFIG_RAID6_PQ_BENCHMARK=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_CORDIC=m
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_UTILS=y
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_GF128MUL=y
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_ARCH_HAVE_LIB_CHACHA=m
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=m
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA1=y
CONFIG_CRYPTO_LIB_SHA256=y
# end of Crypto library routines

CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
CONFIG_CRC_T10DIF=y
CONFIG_CRC64_ROCKSOFT=m
CONFIG_CRC_ITU_T=m
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
CONFIG_CRC64=m
# CONFIG_CRC4 is not set
CONFIG_CRC7=m
CONFIG_LIBCRC32C=m
CONFIG_CRC8=m
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMMON=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_REED_SOLOMON=m
CONFIG_REED_SOLOMON_ENC8=y
CONFIG_REED_SOLOMON_DEC8=y
CONFIG_TEXTSEARCH=y
CONFIG_TEXTSEARCH_KMP=m
CONFIG_TEXTSEARCH_BM=m
CONFIG_TEXTSEARCH_FSM=m
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_HAS_FORCE_DMA_UNENCRYPTED=y
CONFIG_SWIOTLB=y
CONFIG_DMA_CMA=y
# CONFIG_DMA_PERNUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=200
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPUMASK_OFFSTACK=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
CONFIG_IRQ_POLL=y
CONFIG_MPILIB=y
CONFIG_SIGNATURE=y
CONFIG_DIMLIB=y
CONFIG_OID_REGISTRY=y
CONFIG_UCS2_STRING=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_FONT_SUPPORT=y
# CONFIG_FONTS is not set
CONFIG_FONT_8x8=y
CONFIG_FONT_8x16=y
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_MEMREGION=y
CONFIG_ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_ALWAYS_INIT=y
CONFIG_SBITMAP=y
# end of Library routines

CONFIG_ASN1_ENCODER=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
CONFIG_AS_HAS_NON_CONST_LEB128=y
# CONFIG_DEBUG_INFO_NONE is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
CONFIG_DEBUG_INFO_REDUCED=y
CONFIG_DEBUG_INFO_COMPRESSED_NONE=y
# CONFIG_DEBUG_INFO_COMPRESSED_ZLIB is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
CONFIG_PAHOLE_HAS_SPLIT_BTF=y
CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=8192
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_OBJTOOL=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_TRAP is not set
CONFIG_CC_HAS_UBSAN_BOUNDS=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_ONLY_BOUNDS=y
CONFIG_UBSAN_SHIFT=y
# CONFIG_UBSAN_DIV_ZERO is not set
# CONFIG_UBSAN_BOOL is not set
# CONFIG_UBSAN_ENUM is not set
# CONFIG_UBSAN_ALIGNMENT is not set
CONFIG_UBSAN_SANITIZE_ALL=y
# CONFIG_TEST_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# CONFIG_DEBUG_NET is not set
# end of Networking Debugging

#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
# CONFIG_DEBUG_PAGEALLOC is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
CONFIG_PAGE_OWNER=y
# CONFIG_PAGE_TABLE_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SHRINKER_DEBUG is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
CONFIG_KASAN=y
CONFIG_KASAN_GENERIC=y
# CONFIG_KASAN_OUTLINE is not set
CONFIG_KASAN_INLINE=y
CONFIG_KASAN_STACK=y
CONFIG_KASAN_VMALLOC=y
# CONFIG_KASAN_MODULE_TEST is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
CONFIG_HAVE_ARCH_KMSAN=y
# end of Memory Debugging

CONFIG_DEBUG_SHIRQ=y

#
# Debug Oops, Lockups and Hangs
#
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_ON_OOPS_VALUE=1
CONFIG_PANIC_TIMEOUT=0
CONFIG_LOCKUP_DETECTOR=y
CONFIG_SOFTLOCKUP_DETECTOR=y
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=480
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_WQ_WATCHDOG=y
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_RWSEMS is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# CONFIG_CSD_LOCK_WAIT_DEBUG is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_NMI_CHECK_CPU is not set
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# CONFIG_DEBUG_MAPLE_TREE is not set
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
CONFIG_TORTURE_TEST=m
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_REF_SCALE_TEST=m
CONFIG_RCU_CPU_STALL_TIMEOUT=60
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=0
# CONFIG_RCU_CPU_STALL_CPUTIME is not set
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
# CONFIG_DEBUG_CGROUP_REF is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_RETHOOK=y
CONFIG_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_OBJTOOL_NOP_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_TRACING=y
CONFIG_GENERIC_TRACER=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FUNCTION_GRAPH_TRACER=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_DYNAMIC_FTRACE_WITH_ARGS=y
# CONFIG_FPROBE is not set
CONFIG_FUNCTION_PROFILER=y
CONFIG_STACK_TRACER=y
# CONFIG_IRQSOFF_TRACER is not set
CONFIG_SCHED_TRACER=y
CONFIG_HWLAT_TRACER=y
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
# CONFIG_MMIOTRACE is not set
CONFIG_FTRACE_SYSCALLS=y
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
CONFIG_KPROBE_EVENTS=y
# CONFIG_KPROBE_EVENTS_ON_NOTRACE is not set
CONFIG_UPROBE_EVENTS=y
CONFIG_BPF_EVENTS=y
CONFIG_DYNAMIC_EVENTS=y
CONFIG_PROBE_EVENTS=y
CONFIG_BPF_KPROBE_OVERRIDE=y
CONFIG_FTRACE_MCOUNT_RECORD=y
CONFIG_FTRACE_MCOUNT_USE_CC=y
CONFIG_TRACING_MAP=y
CONFIG_SYNTH_EVENTS=y
CONFIG_HIST_TRIGGERS=y
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
CONFIG_RING_BUFFER_BENCHMARK=m
# CONFIG_TRACE_EVAL_MAP_FILE is not set
# CONFIG_FTRACE_RECORD_RECURSION is not set
# CONFIG_FTRACE_STARTUP_TEST is not set
# CONFIG_FTRACE_SORT_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_STARTUP_TEST is not set
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
# CONFIG_SYNTH_EVENT_GEN_TEST is not set
# CONFIG_KPROBE_EVENT_GEN_TEST is not set
# CONFIG_HIST_TRIGGERS_DEBUG is not set
# CONFIG_RV is not set
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
# CONFIG_IO_STRICT_DEVMEM is not set

#
# x86 Debugging
#
CONFIG_EARLY_PRINTK_USB=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
CONFIG_EARLY_PRINTK_DBGP=y
CONFIG_EARLY_PRINTK_USB_XDBC=y
# CONFIG_EFI_PGT_DUMP is not set
# CONFIG_DEBUG_TLBFLUSH is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
# CONFIG_X86_DECODER_SELFTEST is not set
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEBUG_BOOT_PARAMS=y
# CONFIG_CPA_DEBUG is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
# CONFIG_PUNIT_ATOM_DEBUG is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
CONFIG_FUNCTION_ERROR_INJECTION=y
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAULT_INJECTION_USERCOPY is not set
CONFIG_FAIL_MAKE_REQUEST=y
# CONFIG_FAIL_IO_TIMEOUT is not set
# CONFIG_FAIL_FUTEX is not set
CONFIG_FAULT_INJECTION_DEBUG_FS=y
# CONFIG_FAIL_FUNCTION is not set
# CONFIG_FAIL_MMC_REQUEST is not set
# CONFIG_FAIL_SUNRPC is not set
# CONFIG_FAULT_INJECTION_STACKTRACE_FILTER is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_TEST_DHRY is not set
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_ASYNC_RAID6_TEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_MAPLE_TREE is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
CONFIG_TEST_BPF=m
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_DYNAMIC_DEBUG is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_LIVEPATCH is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_HMM is not set
# CONFIG_TEST_FREE_PAGES is not set
# CONFIG_TEST_FPU is not set
# CONFIG_TEST_CLOCKSOURCE_WATCHDOG is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# CONFIG_HYPERV_TESTING is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

[-- Attachment #3: job-script --]
[-- Type: text/plain, Size: 5546 bytes --]

#!/bin/sh

export_top_env()
{
	export suite='xfstests'
	export testcase='xfstests'
	export category='functional'
	export need_memory='2G'
	export job_origin='xfstests-generic-part3.yaml'
	export queue_cmdline_keys='branch
commit'
	export queue='bisect'
	export testbox='lkp-skl-d02'
	export tbox_group='lkp-skl-d02'
	export submit_id='644b34ed53cd876a36349c75'
	export job_file='/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml'
	export id='433a831da35de91dc26d3e016aac2713b19e0690'
	export queuer_version='/zday/lkp'
	export model='Skylake'
	export nr_cpu=4
	export memory='32G'
	export nr_ssd_partitions=1
	export nr_hdd_partitions=4
	export hdd_partitions='/dev/disk/by-id/wwn-0x5000c500746fa0cc-part*'
	export ssd_partitions='/dev/disk/by-id/wwn-0x55cd2e41514d5105-part2'
	export rootfs_partition='/dev/disk/by-id/wwn-0x55cd2e41514d5105-part1'
	export brand='Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz'
	export need_kconfig='BLK_DEV_SD
SCSI
{"BLOCK"=>"y"}
SATA_AHCI
SATA_AHCI_PLATFORM
ATA
{"PCI"=>"y"}
XFS_FS'
	export commit='8bd0744b438be1722c5f8c1fe077e9dcef0e81b7'
	export need_kconfig_hw='{"PTP_1588_CLOCK"=>"y"}
{"E1000E"=>"y"}
SATA_AHCI
DRM_I915'
	export ucode='0xf0'
	export kconfig='x86_64-rhel-8.3-func'
	export enqueue_time='2023-04-28 10:52:30 +0800'
	export _id='644b34ed53cd876a36349c75'
	export _rt='/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7'
	export user='lkp'
	export compiler='gcc-11'
	export LKP_SERVER='internal-lkp-server'
	export head_commit='f88162429084650ed3c74c73197e028d907df4f6'
	export base_commit='457391b0380335d5e9a5babdec90ac53928b23b4'
	export branch='linux-devel/devel-hourly-20230424-212742'
	export rootfs='debian-11.1-x86_64-20220510.cgz'
	export result_root='/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0'
	export scheduler_version='/lkp/lkp/src'
	export arch='x86_64'
	export max_uptime=1200
	export initrd='/osimage/debian/debian-11.1-x86_64-20220510.cgz'
	export bootloader_append='root=/dev/ram0
RESULT_ROOT=/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0
BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b
branch=linux-devel/devel-hourly-20230424-212742
job=/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml
user=lkp
ARCH=x86_64
kconfig=x86_64-rhel-8.3-func
commit=8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
initcall_debug
nmi_watchdog=0
max_uptime=1200
LKP_SERVER=internal-lkp-server
nokaslr
selinux=0
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
drbd.minor_count=8
systemd.log_level=err
ignore_loglevel
console=tty0
earlyprintk=ttyS0,115200
console=ttyS0,115200
vga=normal
rw'
	export modules_initrd='/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/modules.cgz'
	export bm_initrd='/osimage/deps/debian-11.1-x86_64-20220510.cgz/run-ipconfig_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/lkp_20220513.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/rsync-rootfs_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/fs_20220526.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/xfstests_20230410.cgz,/osimage/pkg/debian-11.1-x86_64-20220510.cgz/xfstests-x86_64-a7df89e-1_20230410.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/hw_20220526.cgz'
	export ucode_initrd='/osimage/ucode/intel-ucode-20230406.cgz'
	export lkp_initrd='/osimage/user/lkp/lkp-x86_64.cgz'
	export site='lkp-wsx01'
	export LKP_CGI_PORT=80
	export LKP_CIFS_PORT=139
	export last_kernel='6.3.0'
	export schedule_notify_address=
	export kernel='/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b'
	export dequeue_time='2023-04-28 11:18:59 +0800'
	export job_initrd='/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.cgz'

	[ -n "$LKP_SRC" ] ||
	export LKP_SRC=/lkp/${user:-lkp}/src
}

run_job()
{
	echo $$ > $TMP/run-job.pid

	. $LKP_SRC/lib/http.sh
	. $LKP_SRC/lib/job.sh
	. $LKP_SRC/lib/env.sh

	export_top_env

	run_setup nr_hdd=4 $LKP_SRC/setup/disk

	run_setup fs='xfs' $LKP_SRC/setup/fs

	run_monitor $LKP_SRC/monitors/wrapper kmsg
	run_monitor $LKP_SRC/monitors/wrapper heartbeat
	run_monitor $LKP_SRC/monitors/wrapper meminfo
	run_monitor $LKP_SRC/monitors/wrapper oom-killer
	run_monitor $LKP_SRC/monitors/plain/watchdog

	run_test test='generic-group-17' $LKP_SRC/tests/wrapper xfstests
}

extract_stats()
{
	export stats_part_begin=
	export stats_part_end=

	env test='generic-group-17' $LKP_SRC/stats/wrapper xfstests
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper meminfo

	$LKP_SRC/stats/wrapper time xfstests.time
	$LKP_SRC/stats/wrapper dmesg
	$LKP_SRC/stats/wrapper kmsg
	$LKP_SRC/stats/wrapper last_state
	$LKP_SRC/stats/wrapper stderr
	$LKP_SRC/stats/wrapper time
}

"$@"

[-- Attachment #4: kmsg.xz --]
[-- Type: application/x-xz, Size: 43488 bytes --]

[-- Attachment #5: xfstests --]
[-- Type: text/plain, Size: 2270 bytes --]

2023-04-28 03:20:22 export TEST_DIR=/fs/sda1
2023-04-28 03:20:22 export TEST_DEV=/dev/sda1
2023-04-28 03:20:22 export FSTYP=xfs
2023-04-28 03:20:22 export SCRATCH_MNT=/fs/scratch
2023-04-28 03:20:22 mkdir /fs/scratch -p
2023-04-28 03:20:22 export SCRATCH_DEV=/dev/sda4
2023-04-28 03:20:22 export SCRATCH_LOGDEV=/dev/sda2
2023-04-28 03:20:22 sed "s:^:generic/:" //lkp/benchmarks/xfstests/tests/generic-group-17
2023-04-28 03:20:22 ./check generic/340 generic/341 generic/342 generic/343 generic/344 generic/345 generic/346 generic/347 generic/348 generic/349 generic/350 generic/351 generic/352 generic/353 generic/354 generic/355 generic/356 generic/357 generic/358 generic/359
FSTYP         -- xfs (debug)
PLATFORM      -- Linux/x86_64 lkp-skl-d02 6.3.0-rc4-00043-g8bd0744b438b #1 SMP Fri Apr 28 11:08:50 CST 2023
MKFS_OPTIONS  -- -f /dev/sda4
MOUNT_OPTIONS -- /dev/sda4 /fs/scratch

generic/340        5s
generic/341        5s
generic/342        4s
generic/343        5s
generic/344        7s
generic/345        6s
generic/346        5s
generic/347        91s
generic/348        4s
generic/349        2s
generic/350        2s
generic/351       - output mismatch (see /lkp/benchmarks/xfstests/results//generic/351.out.bad)
    --- tests/generic/351.out	2023-04-10 17:18:19.000000000 +0000
    +++ /lkp/benchmarks/xfstests/results//generic/351.out.bad	2023-04-28 03:22:46.227470830 +0000
    @@ -25,7 +25,7 @@
     Destroy device
     Create w/o unmap or writesame and format
     Zero punch, no fallback available
    -fallocate: Operation not supported
    +fallocate: No such file or directory
     Zero range, write fallback
     Check contents
    ...
    (Run 'diff -u /lkp/benchmarks/xfstests/tests/generic/351.out /lkp/benchmarks/xfstests/results//generic/351.out.bad'  to see the entire diff)
generic/352        117s
generic/353        7s
generic/354        6s
generic/355        2s
generic/356        8s
generic/357        8s
generic/358        37s
generic/359        7s
Ran: generic/340 generic/341 generic/342 generic/343 generic/344 generic/345 generic/346 generic/347 generic/348 generic/349 generic/350 generic/351 generic/352 generic/353 generic/354 generic/355 generic/356 generic/357 generic/358 generic/359
Failures: generic/351
Failed 1 of 20 tests


[-- Attachment #6: job.yaml --]
[-- Type: text/plain, Size: 4918 bytes --]

---

#! jobs/xfstests-generic-part3.yaml
suite: xfstests
testcase: xfstests
category: functional
need_memory: 2G
disk: 4HDD
fs: xfs
xfstests:
  test: generic-group-17
job_origin: xfstests-generic-part3.yaml

#! queue options
queue_cmdline_keys:
- branch
- commit
queue: bisect
testbox: lkp-skl-d02
tbox_group: lkp-skl-d02
submit_id: 644b34ed53cd876a36349c75
job_file: "/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml"
id: 433a831da35de91dc26d3e016aac2713b19e0690
queuer_version: "/zday/lkp"

#! /db/releases/20230410100009/lkp-src/hosts/lkp-skl-d02
model: Skylake
nr_cpu: 4
memory: 32G
nr_ssd_partitions: 1
nr_hdd_partitions: 4
hdd_partitions: "/dev/disk/by-id/wwn-0x5000c500746fa0cc-part*"
ssd_partitions: "/dev/disk/by-id/wwn-0x55cd2e41514d5105-part2"
rootfs_partition: "/dev/disk/by-id/wwn-0x55cd2e41514d5105-part1"
brand: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz

#! /db/releases/20230410100009/lkp-src/include/category/functional
kmsg:
heartbeat:
meminfo:

#! /db/releases/20230410100009/lkp-src/include/disk/nr_hdd
need_kconfig:
- BLK_DEV_SD
- SCSI
- BLOCK: y
- SATA_AHCI
- SATA_AHCI_PLATFORM
- ATA
- PCI: y
- XFS_FS

#! /db/releases/20230410100009/lkp-src/include/queue/cyclic
commit: 8bd0744b438be1722c5f8c1fe077e9dcef0e81b7

#! /db/releases/20230410100009/lkp-src/include/testbox/lkp-skl-d02
need_kconfig_hw:
- PTP_1588_CLOCK: y
- E1000E: y
- SATA_AHCI
- DRM_I915
ucode: '0xf0'

#! /db/releases/20230410100009/lkp-src/include/fs/OTHERS
kconfig: x86_64-rhel-8.3-func
enqueue_time: 2023-04-28 10:52:30.247399087 +08:00
_id: 644b34ed53cd876a36349c75
_rt: "/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7"

#! schedule options
user: lkp
compiler: gcc-11
LKP_SERVER: internal-lkp-server
head_commit: f88162429084650ed3c74c73197e028d907df4f6
base_commit: 457391b0380335d5e9a5babdec90ac53928b23b4
branch: linux-devel/devel-hourly-20230424-212742
rootfs: debian-11.1-x86_64-20220510.cgz
result_root: "/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0"
scheduler_version: "/lkp/lkp/src"
arch: x86_64
max_uptime: 1200
initrd: "/osimage/debian/debian-11.1-x86_64-20220510.cgz"
bootloader_append:
- root=/dev/ram0
- RESULT_ROOT=/result/xfstests/4HDD-xfs-generic-group-17/lkp-skl-d02/debian-11.1-x86_64-20220510.cgz/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/0
- BOOT_IMAGE=/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b
- branch=linux-devel/devel-hourly-20230424-212742
- job=/lkp/jobs/scheduled/lkp-skl-d02/xfstests-4HDD-xfs-generic-group-17-debian-11.1-x86_64-20220510.cgz-8bd0744b438be1722c5f8c1fe077e9dcef0e81b7-20230428-27190-16qxvf-0.yaml
- user=lkp
- ARCH=x86_64
- kconfig=x86_64-rhel-8.3-func
- commit=8bd0744b438be1722c5f8c1fe077e9dcef0e81b7
- initcall_debug
- nmi_watchdog=0
- max_uptime=1200
- LKP_SERVER=internal-lkp-server
- nokaslr
- selinux=0
- debug
- apic=debug
- sysrq_always_enabled
- rcupdate.rcu_cpu_stall_timeout=100
- net.ifnames=0
- printk.devkmsg=on
- panic=-1
- softlockup_panic=1
- nmi_watchdog=panic
- oops=panic
- load_ramdisk=2
- prompt_ramdisk=0
- drbd.minor_count=8
- systemd.log_level=err
- ignore_loglevel
- console=tty0
- earlyprintk=ttyS0,115200
- console=ttyS0,115200
- vga=normal
- rw

#! runtime status
modules_initrd: "/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/modules.cgz"
bm_initrd: "/osimage/deps/debian-11.1-x86_64-20220510.cgz/run-ipconfig_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/lkp_20220513.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/rsync-rootfs_20220515.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/fs_20220526.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/xfstests_20230410.cgz,/osimage/pkg/debian-11.1-x86_64-20220510.cgz/xfstests-x86_64-a7df89e-1_20230410.cgz,/osimage/deps/debian-11.1-x86_64-20220510.cgz/hw_20220526.cgz"
ucode_initrd: "/osimage/ucode/intel-ucode-20230406.cgz"
lkp_initrd: "/osimage/user/lkp/lkp-x86_64.cgz"
site: lkp-wsx01

#! /db/releases/20230425102624/lkp-src/include/site/lkp-wsx01
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
oom-killer:
watchdog:
last_kernel: 6.3.0-rc4-00042-g38d11da522aa
schedule_notify_address:

#! user overrides
kernel: "/pkg/linux/x86_64-rhel-8.3-func/gcc-11/8bd0744b438be1722c5f8c1fe077e9dcef0e81b7/vmlinuz-6.3.0-rc4-00043-g8bd0744b438b"
dequeue_time: 2023-04-28 11:18:59.040156964 +08:00

#! /db/releases/20230427211347/lkp-src/include/site/lkp-wsx01
job_state: finished
loadavg: 2.97 1.41 0.66 1/145 35640
start_time: '1682652022'
end_time: '1682652359'
version: "/lkp/lkp/.src-20230427-110942:7223d8995176:4ad6dc681a48"

[-- Attachment #7: reproduce --]
[-- Type: text/plain, Size: 1034 bytes --]

dmsetup remove_all
wipefs -a --force /dev/sda1
wipefs -a --force /dev/sda2
wipefs -a --force /dev/sda3
wipefs -a --force /dev/sda4
mkfs -t xfs -f -mreflink=0 /dev/sda1
mkfs -t xfs -f -mreflink=0 /dev/sda3
mkfs -t xfs -f -mreflink=0 /dev/sda4
mkfs -t xfs -f -mreflink=0 /dev/sda2
mkdir -p /fs/sda1
modprobe xfs
mount -t xfs -o inode64 /dev/sda1 /fs/sda1
mkdir -p /fs/sda2
mount -t xfs -o inode64 /dev/sda2 /fs/sda2
mkdir -p /fs/sda3
mount -t xfs -o inode64 /dev/sda3 /fs/sda3
mkdir -p /fs/sda4
mount -t xfs -o inode64 /dev/sda4 /fs/sda4
export TEST_DIR=/fs/sda1
export TEST_DEV=/dev/sda1
export FSTYP=xfs
export SCRATCH_MNT=/fs/scratch
mkdir /fs/scratch -p
export SCRATCH_DEV=/dev/sda4
export SCRATCH_LOGDEV=/dev/sda2
sed "s:^:generic/:" //lkp/benchmarks/xfstests/tests/generic-group-17
./check generic/340 generic/341 generic/342 generic/343 generic/344 generic/345 generic/346 generic/347 generic/348 generic/349 generic/350 generic/351 generic/352 generic/353 generic/354 generic/355 generic/356 generic/357 generic/358 generic/359

[dm-devel] [PATCH v5 2/5] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  9 +++++++
 block/bounce.c            |  1 +
 block/fops.c              | 10 +++++++-
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 138 insertions(+), 4 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..0a3165211c66 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
 	return queue_var_show(0, page);
 }
 
+static ssize_t queue_provision_max_show(struct request_queue *q,
+		char *page)
+{
+	return sprintf(page, "%llu\n",
+		(unsigned long long)q->limits.max_provision_sectors << 9);
+}
+
 static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(0, page);
@@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
 QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
 
+QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
 QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
 QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
 QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
@@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_discard_max_entry.attr,
 	&queue_discard_max_hw_entry.attr,
 	&queue_discard_zeroes_data_entry.attr,
+	&queue_provision_max_entry.attr,
 	&queue_write_same_max_entry.attr,
 	&queue_write_zeroes_max_entry.attr,
 	&queue_zone_append_max_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index 2fd7e8b9ab48..16420c5fe4a2 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 
 #define	BLKDEV_FALLOC_FL_SUPPORTED					\
 		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
-		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
+		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |	\
+		 FALLOC_FL_UNSHARE_RANGE)
 
 static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 			     loff_t len)
@@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	 * de-allocate mode calls to fallocate().
 	 */
 	switch (mode) {
+	case 0:
+	case FALLOC_FL_UNSHARE_RANGE:
+	case FALLOC_FL_KEEP_SIZE:
+	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v5 2/5] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  9 +++++++
 block/bounce.c            |  1 +
 block/fops.c              | 10 +++++++-
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 138 insertions(+), 4 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..0a3165211c66 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
 	return queue_var_show(0, page);
 }
 
+static ssize_t queue_provision_max_show(struct request_queue *q,
+		char *page)
+{
+	return sprintf(page, "%llu\n",
+		(unsigned long long)q->limits.max_provision_sectors << 9);
+}
+
 static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(0, page);
@@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
 QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
 
+QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
 QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
 QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
 QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
@@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_discard_max_entry.attr,
 	&queue_discard_max_hw_entry.attr,
 	&queue_discard_zeroes_data_entry.attr,
+	&queue_provision_max_entry.attr,
 	&queue_write_same_max_entry.attr,
 	&queue_write_zeroes_max_entry.attr,
 	&queue_zone_append_max_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index 2fd7e8b9ab48..16420c5fe4a2 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 
 #define	BLKDEV_FALLOC_FL_SUPPORTED					\
 		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
-		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
+		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |	\
+		 FALLOC_FL_UNSHARE_RANGE)
 
 static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 			     loff_t len)
@@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	 * de-allocate mode calls to fallocate().
 	 */
 	switch (mode) {
+	case 0:
+	case FALLOC_FL_UNSHARE_RANGE:
+	case FALLOC_FL_KEEP_SIZE:
+	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = truncate_bdev_range(bdev, file->f_mode, start, end) ||
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v5 3/5] dm: Add block provisioning support

[Sarthak Kukreti]

Add block provisioning support for device-mapper targets.
dm-crypt, dm-snap and dm-linear will, by default, passthrough
REQ_OP_PROVISION requests to the underlying device, if
supported.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |  5 ++++-
 drivers/md/dm-linear.c        |  2 ++
 drivers/md/dm-snap.c          |  8 ++++++++
 drivers/md/dm-table.c         | 23 +++++++++++++++++++++++
 drivers/md/dm.c               |  6 ++++++
 include/linux/device-mapper.h | 17 +++++++++++++++++
 6 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8b47b913ee83..aa8072d6d7bf 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3336,6 +3336,9 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		cc->tag_pool_max_sectors <<= cc->sector_shift;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	ret = -ENOMEM;
 	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
@@ -3390,7 +3393,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index f4448d520ee9..66e50f5b0665 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,8 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9c49f53760d0..07927bb1e711 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,8 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2005,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2420,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 119db5e01080..9301f050529f 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1854,6 +1854,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return !bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1987,6 +2007,9 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (!dm_table_supports_provision(t))
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3b694ba3a106..9b94121b8d38 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1609,6 +1609,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1641,6 +1642,11 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 		if (ti->max_write_zeroes_granularity)
 			max_granularity = limits->max_write_zeroes_sectors;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		if (ti->max_provision_granularity)
+			max_granularity = limits->max_provision_sectors;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a52d2b9a6846..9981378457d2 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if this target requires that discards be split on
 	 * 'max_discard_sectors' boundaries.
@@ -376,6 +387,12 @@ struct dm_target {
 	 */
 	bool max_write_zeroes_granularity:1;
 
+	/*
+	 * Set if this target requires that provisions be split on
+	 * 'max_provision_sectors' boundaries.
+	 */
+	bool max_provision_granularity:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v5 3/5] dm: Add block provisioning support

[Sarthak Kukreti]

Add block provisioning support for device-mapper targets.
dm-crypt, dm-snap and dm-linear will, by default, passthrough
REQ_OP_PROVISION requests to the underlying device, if
supported.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |  5 ++++-
 drivers/md/dm-linear.c        |  2 ++
 drivers/md/dm-snap.c          |  8 ++++++++
 drivers/md/dm-table.c         | 23 +++++++++++++++++++++++
 drivers/md/dm.c               |  6 ++++++
 include/linux/device-mapper.h | 17 +++++++++++++++++
 6 files changed, 60 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8b47b913ee83..aa8072d6d7bf 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3336,6 +3336,9 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		cc->tag_pool_max_sectors <<= cc->sector_shift;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	ret = -ENOMEM;
 	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
@@ -3390,7 +3393,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index f4448d520ee9..66e50f5b0665 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,8 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9c49f53760d0..07927bb1e711 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,8 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2005,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2420,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 119db5e01080..9301f050529f 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1854,6 +1854,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return !bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1987,6 +2007,9 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (!dm_table_supports_provision(t))
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3b694ba3a106..9b94121b8d38 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1609,6 +1609,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1641,6 +1642,11 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 		if (ti->max_write_zeroes_granularity)
 			max_granularity = limits->max_write_zeroes_sectors;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		if (ti->max_provision_granularity)
+			max_granularity = limits->max_provision_sectors;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a52d2b9a6846..9981378457d2 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if this target requires that discards be split on
 	 * 'max_discard_sectors' boundaries.
@@ -376,6 +387,12 @@ struct dm_target {
 	 */
 	bool max_write_zeroes_granularity:1;
 
+	/*
+	 * Set if this target requires that provisions be split on
+	 * 'max_provision_sectors' boundaries.
+	 */
+	bool max_provision_granularity:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v5 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block. Additionally, if 'skip_block_zeroing'
is not set, dm-thin will opt to zero out the entire range as a part
of provisioning.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 68 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b13c949bd72..58d633f5c928 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -274,6 +274,7 @@ struct pool {
 
 	process_bio_fn process_bio;
 	process_bio_fn process_discard;
+	process_bio_fn process_provision;
 
 	process_cell_fn process_cell;
 	process_cell_fn process_discard_cell;
@@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
-		io_overlaps_block(pool, bio);
+	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
+	       bio_op(bio) != REQ_OP_PROVISION;
 }
 
 static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
@@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
 
 	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
 		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
-		cell_defer_no_holder(tc, virt_cell);
+		if (bio_op(bio) != REQ_OP_PROVISION)
+			cell_defer_no_holder(tc, virt_cell);
 	} else {
 		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
 
@@ -1953,6 +1956,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
 	}
 }
 
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	dm_block_t block = get_bio_block(tc, bio);
+	struct dm_bio_prison_cell *cell;
+	struct dm_cell_key key;
+	struct dm_thin_lookup_result lookup_result;
+
+	/*
+	 * If cell is already occupied, then the block is already
+	 * being provisioned so we have nothing further to do here.
+	 */
+	build_virtual_key(tc->td, block, &key);
+	if (bio_detain(pool, &key, bio, &cell))
+		return;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
+	switch (r) {
+	case 0:
+		if (lookup_result.shared) {
+			process_shared_bio(tc, bio, block, &lookup_result, cell);
+		} else {
+			bio_endio(bio);
+			cell_defer_no_holder(tc, cell);
+		}
+		break;
+	case -ENODATA:
+		provision_block(tc, bio, block, cell);
+		break;
+
+	default:
+		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
+			    __func__, r);
+		cell_defer_no_holder(tc, cell);
+		bio_io_error(bio);
+		break;
+	}
+}
+
 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 {
 	int r;
@@ -2228,6 +2276,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			pool->process_provision(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2579,6 +2629,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_fail;
 		pool->process_discard_cell = process_cell_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2592,6 +2643,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_bio_success;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_cell_success;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2612,6 +2664,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->out_of_data_space = true;
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2628,6 +2681,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_provision_bio;
 		pool->process_cell = process_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2749,7 +2803,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3396,6 +3451,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4288,6 +4346,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->max_discard_granularity = true;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
@@ -4502,6 +4563,8 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 	limits->max_discard_sectors = pool->sectors_per_block * BIO_PRISON_MAX_RANGE;
+
+	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type thin_target = {
-- 
2.40.0.634.g4ca3ef3211-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v5 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block. Additionally, if 'skip_block_zeroing'
is not set, dm-thin will opt to zero out the entire range as a part
of provisioning.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 68 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b13c949bd72..58d633f5c928 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -274,6 +274,7 @@ struct pool {
 
 	process_bio_fn process_bio;
 	process_bio_fn process_discard;
+	process_bio_fn process_provision;
 
 	process_cell_fn process_cell;
 	process_cell_fn process_discard_cell;
@@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
-		io_overlaps_block(pool, bio);
+	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
+	       bio_op(bio) != REQ_OP_PROVISION;
 }
 
 static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
@@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
 
 	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
 		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
-		cell_defer_no_holder(tc, virt_cell);
+		if (bio_op(bio) != REQ_OP_PROVISION)
+			cell_defer_no_holder(tc, virt_cell);
 	} else {
 		struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
 
@@ -1953,6 +1956,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
 	}
 }
 
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	dm_block_t block = get_bio_block(tc, bio);
+	struct dm_bio_prison_cell *cell;
+	struct dm_cell_key key;
+	struct dm_thin_lookup_result lookup_result;
+
+	/*
+	 * If cell is already occupied, then the block is already
+	 * being provisioned so we have nothing further to do here.
+	 */
+	build_virtual_key(tc->td, block, &key);
+	if (bio_detain(pool, &key, bio, &cell))
+		return;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
+	switch (r) {
+	case 0:
+		if (lookup_result.shared) {
+			process_shared_bio(tc, bio, block, &lookup_result, cell);
+		} else {
+			bio_endio(bio);
+			cell_defer_no_holder(tc, cell);
+		}
+		break;
+	case -ENODATA:
+		provision_block(tc, bio, block, cell);
+		break;
+
+	default:
+		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
+			    __func__, r);
+		cell_defer_no_holder(tc, cell);
+		bio_io_error(bio);
+		break;
+	}
+}
+
 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 {
 	int r;
@@ -2228,6 +2276,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			pool->process_provision(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2579,6 +2629,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_fail;
 		pool->process_discard_cell = process_cell_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2592,6 +2643,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_bio_success;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_cell_success;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2612,6 +2664,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->out_of_data_space = true;
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2628,6 +2681,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_provision_bio;
 		pool->process_cell = process_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2749,7 +2803,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3396,6 +3451,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4288,6 +4346,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->max_discard_granularity = true;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
@@ -4502,6 +4563,8 @@ static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 	limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 	limits->max_discard_sectors = pool->sectors_per_block * BIO_PRISON_MAX_RANGE;
+
+	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type thin_target = {
-- 
2.40.0.634.g4ca3ef3211-goog

Re: [dm-devel] [PATCH v5 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Wed, Apr 19 2023 at  8:48P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block. Additionally, if 'skip_block_zeroing'
> is not set, dm-thin will opt to zero out the entire range as a part
> of provisioning.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 68 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 2b13c949bd72..58d633f5c928 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
> @@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
>  
>  	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
>  		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> -		cell_defer_no_holder(tc, virt_cell);
> +		if (bio_op(bio) != REQ_OP_PROVISION)
> +			cell_defer_no_holder(tc, virt_cell);

Can you please explain why cell_defer_no_holder() is skipped for REQ_OP_PROVISION here?

Thanks,
Mike

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Re: [PATCH v5 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Wed, Apr 19 2023 at  8:48P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block. Additionally, if 'skip_block_zeroing'
> is not set, dm-thin will opt to zero out the entire range as a part
> of provisioning.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 68 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 2b13c949bd72..58d633f5c928 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
> @@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
>  
>  	if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
>  		break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> -		cell_defer_no_holder(tc, virt_cell);
> +		if (bio_op(bio) != REQ_OP_PROVISION)
> +			cell_defer_no_holder(tc, virt_cell);

Can you please explain why cell_defer_no_holder() is skipped for REQ_OP_PROVISION here?

Thanks,
Mike

Re: [dm-devel] [PATCH v5 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

On Mon, May 1, 2023 at 12:15 PM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Wed, Apr 19 2023 at  8:48P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > is not set, dm-thin will opt to zero out the entire range as a part
> > of provisioning.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
> >  1 file changed, 68 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 2b13c949bd72..58d633f5c928 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
> > @@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
> >
> >       if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
> >               break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> > -             cell_defer_no_holder(tc, virt_cell);
> > +             if (bio_op(bio) != REQ_OP_PROVISION)
> > +                     cell_defer_no_holder(tc, virt_cell);
>
> Can you please explain why cell_defer_no_holder() is skipped for REQ_OP_PROVISION here?
>
I recalled seeing a BUG in dm-prison-v1 if I allowed
cell_defer_no_holder() for REQ_OP_PROVISION, but from additional
testing, it looks like it was left behind from a cleanup in v4.
Dropped in v6.

Thanks
Sarthak

> Thanks,
> Mike

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Re: [PATCH v5 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

On Mon, May 1, 2023 at 12:15 PM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Wed, Apr 19 2023 at  8:48P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > is not set, dm-thin will opt to zero out the entire range as a part
> > of provisioning.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-thin.c | 73 +++++++++++++++++++++++++++++++++++++++++---
> >  1 file changed, 68 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 2b13c949bd72..58d633f5c928 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
> > @@ -1891,7 +1893,8 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio,
> >
> >       if (bio_data_dir(bio) == WRITE && bio->bi_iter.bi_size) {
> >               break_sharing(tc, bio, block, &key, lookup_result, data_cell);
> > -             cell_defer_no_holder(tc, virt_cell);
> > +             if (bio_op(bio) != REQ_OP_PROVISION)
> > +                     cell_defer_no_holder(tc, virt_cell);
>
> Can you please explain why cell_defer_no_holder() is skipped for REQ_OP_PROVISION here?
>
I recalled seeing a BUG in dm-prison-v1 if I allowed
cell_defer_no_holder() for REQ_OP_PROVISION, but from additional
testing, it looks like it was left behind from a cleanup in v4.
Dropped in v6.

Thanks
Sarthak

> Thanks,
> Mike

[dm-devel] [PATCH v5 5/5] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

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[PATCH v5 5/5] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.0.634.g4ca3ef3211-goog

[dm-devel] [PATCH v6 0/5] Introduce block provisioning primitives

[Sarthak Kukreti]

Hi,

This patch series covers iteration 6 of adding support for block
provisioning requests.

Changes from v5:
- Remove explicit supports_provision from dm devices.
- Move provision sectors io hint to pool_io_hint. Other devices
  will derive the provisioning limits from the stack.
- Remove artifact from v4 to omit cell_defer_no_holder for
  REQ_OP_PROVISION.
- Fix blkdev_fallocate() called with invalid fallocate
  modes to propagate errors correctly.

Sarthak Kukreti (5):
  block: Don't invalidate pagecache for invalid falloc modes
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 ++++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 ++++++++++
 block/blk-sysfs.c             |  9 +++++
 block/bounce.c                |  1 +
 block/fops.c                  | 31 +++++++++++++---
 drivers/block/loop.c          | 42 +++++++++++++++++++++
 drivers/md/dm-crypt.c         |  4 +-
 drivers/md/dm-linear.c        |  1 +
 drivers/md/dm-snap.c          |  7 ++++
 drivers/md/dm-table.c         | 23 ++++++++++++
 drivers/md/dm-thin.c          | 70 +++++++++++++++++++++++++++++++++--
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 +++++++++
 18 files changed, 319 insertions(+), 14 deletions(-)

-- 
2.40.1.521.gf1e218fcd8-goog

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[PATCH v6 0/5] Introduce block provisioning primitives

[Sarthak Kukreti]

Hi,

This patch series covers iteration 6 of adding support for block
provisioning requests.

Changes from v5:
- Remove explicit supports_provision from dm devices.
- Move provision sectors io hint to pool_io_hint. Other devices
  will derive the provisioning limits from the stack.
- Remove artifact from v4 to omit cell_defer_no_holder for
  REQ_OP_PROVISION.
- Fix blkdev_fallocate() called with invalid fallocate
  modes to propagate errors correctly.

Sarthak Kukreti (5):
  block: Don't invalidate pagecache for invalid falloc modes
  block: Introduce provisioning primitives
  dm: Add block provisioning support
  dm-thin: Add REQ_OP_PROVISION support
  loop: Add support for provision requests

 block/blk-core.c              |  5 +++
 block/blk-lib.c               | 53 ++++++++++++++++++++++++++
 block/blk-merge.c             | 18 +++++++++
 block/blk-settings.c          | 19 ++++++++++
 block/blk-sysfs.c             |  9 +++++
 block/bounce.c                |  1 +
 block/fops.c                  | 31 +++++++++++++---
 drivers/block/loop.c          | 42 +++++++++++++++++++++
 drivers/md/dm-crypt.c         |  4 +-
 drivers/md/dm-linear.c        |  1 +
 drivers/md/dm-snap.c          |  7 ++++
 drivers/md/dm-table.c         | 23 ++++++++++++
 drivers/md/dm-thin.c          | 70 +++++++++++++++++++++++++++++++++--
 drivers/md/dm.c               |  6 +++
 include/linux/bio.h           |  6 ++-
 include/linux/blk_types.h     |  5 ++-
 include/linux/blkdev.h        | 16 ++++++++
 include/linux/device-mapper.h | 17 +++++++++
 18 files changed, 319 insertions(+), 14 deletions(-)

-- 
2.40.1.521.gf1e218fcd8-goog

[dm-devel] [PATCH v6 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..4c70fdc546e7 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
-- 
2.40.1.521.gf1e218fcd8-goog

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[PATCH v6 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Sarthak Kukreti]

Only call truncate_bdev_range() if the fallocate mode is
supported. This fixes a bug where data in the pagecache
could be invalidated if the fallocate() was called on the
block device with an invalid mode.

Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
Cc: stable@vger.kernel.org
Reported-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/fops.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/block/fops.c b/block/fops.c
index d2e6be4e3d1c..4c70fdc546e7 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 
 	filemap_invalidate_lock(inode->i_mapping);
 
-	/* Invalidate the page cache, including dirty pages. */
-	error = truncate_bdev_range(bdev, file->f_mode, start, end);
-	if (error)
-		goto fail;
-
+	/*
+	 * Invalidate the page cache, including dirty pages, for valid
+	 * de-allocate mode calls to fallocate().
+	 */
 	switch (mode) {
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOUNMAP);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL,
 					     BLKDEV_ZERO_NOFALLBACK);
 		break;
 	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
+		error = truncate_bdev_range(bdev, file->f_mode, start, end);
+		if (error)
+			goto fail;
+
 		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
 					     len >> SECTOR_SHIFT, GFP_KERNEL);
 		break;
-- 
2.40.1.521.gf1e218fcd8-goog

Re: [dm-devel] [PATCH v6 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Cc: stable@vger.kernel.org
> Reported-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

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Re: [PATCH v6 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Cc: stable@vger.kernel.org
> Reported-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

Re: [dm-devel] [PATCH v6 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Darrick J. Wong]

On Fri, May 05, 2023 at 11:29:05PM -0700, Sarthak Kukreti wrote:
> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Cc: stable@vger.kernel.org
> Reported-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Ideally you'd only take filemap_invalidate_lock for valid modes, but eh
who cares about efficiency for the EOPNOTSUPP case, let's move on. :)

Reviewed-by: Darrick J. Wong <djwong@kernel.org>

--D

> ---
>  block/fops.c | 21 ++++++++++++++++-----
>  1 file changed, 16 insertions(+), 5 deletions(-)
> 
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..4c70fdc546e7 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  
>  	filemap_invalidate_lock(inode->i_mapping);
>  
> -	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> -
> +	/*
> +	 * Invalidate the page cache, including dirty pages, for valid
> +	 * de-allocate mode calls to fallocate().
> +	 */
>  	switch (mode) {
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOUNMAP);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOFALLBACK);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +
>  		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL);
>  		break;
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

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Re: [PATCH v6 1/5] block: Don't invalidate pagecache for invalid falloc modes

[Darrick J. Wong]

On Fri, May 05, 2023 at 11:29:05PM -0700, Sarthak Kukreti wrote:
> Only call truncate_bdev_range() if the fallocate mode is
> supported. This fixes a bug where data in the pagecache
> could be invalidated if the fallocate() was called on the
> block device with an invalid mode.
> 
> Fixes: 25f4c41415e5 ("block: implement (some of) fallocate for block devices")
> Cc: stable@vger.kernel.org
> Reported-by: Darrick J. Wong <djwong@kernel.org>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Ideally you'd only take filemap_invalidate_lock for valid modes, but eh
who cares about efficiency for the EOPNOTSUPP case, let's move on. :)

Reviewed-by: Darrick J. Wong <djwong@kernel.org>

--D

> ---
>  block/fops.c | 21 ++++++++++++++++-----
>  1 file changed, 16 insertions(+), 5 deletions(-)
> 
> diff --git a/block/fops.c b/block/fops.c
> index d2e6be4e3d1c..4c70fdc546e7 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -648,24 +648,35 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  
>  	filemap_invalidate_lock(inode->i_mapping);
>  
> -	/* Invalidate the page cache, including dirty pages. */
> -	error = truncate_bdev_range(bdev, file->f_mode, start, end);
> -	if (error)
> -		goto fail;
> -
> +	/*
> +	 * Invalidate the page cache, including dirty pages, for valid
> +	 * de-allocate mode calls to fallocate().
> +	 */
>  	switch (mode) {
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOUNMAP);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE:
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +
>  		error = blkdev_issue_zeroout(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL,
>  					     BLKDEV_ZERO_NOFALLBACK);
>  		break;
>  	case FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE | FALLOC_FL_NO_HIDE_STALE:
> +		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> +		if (error)
> +			goto fail;
> +
>  		error = blkdev_issue_discard(bdev, start >> SECTOR_SHIFT,
>  					     len >> SECTOR_SHIFT, GFP_KERNEL);
>  		break;
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

[dm-devel] [PATCH v6 2/5] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  9 +++++++
 block/bounce.c            |  1 +
 block/fops.c              | 10 +++++++-
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 138 insertions(+), 4 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..0a3165211c66 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
 	return queue_var_show(0, page);
 }
 
+static ssize_t queue_provision_max_show(struct request_queue *q,
+		char *page)
+{
+	return sprintf(page, "%llu\n",
+		(unsigned long long)q->limits.max_provision_sectors << 9);
+}
+
 static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(0, page);
@@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
 QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
 
+QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
 QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
 QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
 QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
@@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_discard_max_entry.attr,
 	&queue_discard_max_hw_entry.attr,
 	&queue_discard_zeroes_data_entry.attr,
+	&queue_provision_max_entry.attr,
 	&queue_write_same_max_entry.attr,
 	&queue_write_zeroes_max_entry.attr,
 	&queue_zone_append_max_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index 4c70fdc546e7..be2e41f160bf 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 
 #define	BLKDEV_FALLOC_FL_SUPPORTED					\
 		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
-		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
+		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |	\
+		 FALLOC_FL_UNSHARE_RANGE)
 
 static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 			     loff_t len)
@@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	 * de-allocate mode calls to fallocate().
 	 */
 	switch (mode) {
+	case 0:
+	case FALLOC_FL_UNSHARE_RANGE:
+	case FALLOC_FL_KEEP_SIZE:
+	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = truncate_bdev_range(bdev, file->f_mode, start, end);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.1.521.gf1e218fcd8-goog

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v6 2/5] block: Introduce provisioning primitives

[Sarthak Kukreti]

Introduce block request REQ_OP_PROVISION. The intent of this request
is to request underlying storage to preallocate disk space for the given
block range. Block devices that support this capability will export
a provision limit within their request queues.

This patch also adds the capability to call fallocate() in mode 0
on block devices, which will send REQ_OP_PROVISION to the block
device for the specified range,

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 block/blk-core.c          |  5 ++++
 block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
 block/blk-merge.c         | 18 +++++++++++++
 block/blk-settings.c      | 19 ++++++++++++++
 block/blk-sysfs.c         |  9 +++++++
 block/bounce.c            |  1 +
 block/fops.c              | 10 +++++++-
 include/linux/bio.h       |  6 +++--
 include/linux/blk_types.h |  5 +++-
 include/linux/blkdev.h    | 16 ++++++++++++
 10 files changed, 138 insertions(+), 4 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 42926e6cb83c..4a2342ba3a8b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
 	REQ_OP_NAME(WRITE_ZEROES),
 	REQ_OP_NAME(DRV_IN),
 	REQ_OP_NAME(DRV_OUT),
+	REQ_OP_NAME(PROVISION)
 };
 #undef REQ_OP_NAME
 
@@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
 		if (!q->limits.max_write_zeroes_sectors)
 			goto not_supported;
 		break;
+	case REQ_OP_PROVISION:
+		if (!q->limits.max_provision_sectors)
+			goto not_supported;
+		break;
 	default:
 		break;
 	}
diff --git a/block/blk-lib.c b/block/blk-lib.c
index e59c3069e835..647b6451660b 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_secure_erase);
+
+/**
+ * blkdev_issue_provision - provision a block range
+ * @bdev:	blockdev to write
+ * @sector:	start sector
+ * @nr_sects:	number of sectors to provision
+ * @gfp_mask:	memory allocation flags (for bio_alloc)
+ *
+ * Description:
+ *  Issues a provision request to the block device for the range of sectors.
+ *  For thinly provisioned block devices, this acts as a signal for the
+ *  underlying storage pool to allocate space for this block range.
+ */
+int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp)
+{
+	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
+	struct bio *bio = NULL;
+	struct blk_plug plug;
+	int ret = 0;
+
+	if (max_sectors == 0)
+		return -EOPNOTSUPP;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+	if (bdev_read_only(bdev))
+		return -EPERM;
+
+	blk_start_plug(&plug);
+	for (;;) {
+		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
+
+		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
+		bio->bi_iter.bi_sector = sector;
+		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
+
+		sector += req_sects;
+		nr_sects -= req_sects;
+		if (!nr_sects) {
+			ret = submit_bio_wait(bio);
+			if (ret == -EOPNOTSUPP)
+				ret = 0;
+			bio_put(bio);
+			break;
+		}
+		cond_resched();
+	}
+	blk_finish_plug(&plug);
+
+	return ret;
+}
+EXPORT_SYMBOL(blkdev_issue_provision);
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6460abdb2426..a3ffebb97a1d 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
 	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
 }
 
+static struct bio *bio_split_provision(struct bio *bio,
+					const struct queue_limits *lim,
+					unsigned int *nsegs, struct bio_set *bs)
+{
+	*nsegs = 0;
+
+	if (!lim->max_provision_sectors)
+		return NULL;
+
+	if (bio_sectors(bio) <= lim->max_provision_sectors)
+		return NULL;
+
+	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
+}
+
 /*
  * Return the maximum number of sectors from the start of a bio that may be
  * submitted as a single request to a block device. If enough sectors remain,
@@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
 	case REQ_OP_WRITE_ZEROES:
 		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
 		break;
+	case REQ_OP_PROVISION:
+		split = bio_split_provision(bio, lim, nr_segs, bs);
+		break;
 	default:
 		split = bio_split_rw(bio, lim, nr_segs, bs,
 				get_max_io_size(bio, lim) << SECTOR_SHIFT);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 896b4654ab00..d303e6614c36 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
 	lim->zoned = BLK_ZONED_NONE;
 	lim->zone_write_granularity = 0;
 	lim->dma_alignment = 511;
+	lim->max_provision_sectors = 0;
 }
 
 /**
@@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->max_dev_sectors = UINT_MAX;
 	lim->max_write_zeroes_sectors = UINT_MAX;
 	lim->max_zone_append_sectors = UINT_MAX;
+	lim->max_provision_sectors = UINT_MAX;
 }
 EXPORT_SYMBOL(blk_set_stacking_limits);
 
@@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 }
 EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
 
+/**
+ * blk_queue_max_provision_sectors - set max sectors for a single provision
+ *
+ * @q:  the request queue for the device
+ * @max_provision_sectors: maximum number of sectors to provision per command
+ **/
+
+void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors)
+{
+	q->limits.max_provision_sectors = max_provision_sectors;
+}
+EXPORT_SYMBOL(blk_queue_max_provision_sectors);
+
 /**
  * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
  * @q:  the request queue for the device
@@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
 	t->max_segment_size = min_not_zero(t->max_segment_size,
 					   b->max_segment_size);
 
+	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
+						b->max_provision_sectors);
+
 	t->misaligned |= b->misaligned;
 
 	alignment = queue_limit_alignment_offset(b, start);
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index f1fce1c7fa44..0a3165211c66 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
 	return queue_var_show(0, page);
 }
 
+static ssize_t queue_provision_max_show(struct request_queue *q,
+		char *page)
+{
+	return sprintf(page, "%llu\n",
+		(unsigned long long)q->limits.max_provision_sectors << 9);
+}
+
 static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
 {
 	return queue_var_show(0, page);
@@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
 QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
 QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
 
+QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
 QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
 QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
 QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
@@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
 	&queue_discard_max_entry.attr,
 	&queue_discard_max_hw_entry.attr,
 	&queue_discard_zeroes_data_entry.attr,
+	&queue_provision_max_entry.attr,
 	&queue_write_same_max_entry.attr,
 	&queue_write_zeroes_max_entry.attr,
 	&queue_zone_append_max_entry.attr,
diff --git a/block/bounce.c b/block/bounce.c
index 7cfcb242f9a1..ab9d8723ae64 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
 	case REQ_OP_DISCARD:
 	case REQ_OP_SECURE_ERASE:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		break;
 	default:
 		bio_for_each_segment(bv, bio_src, iter)
diff --git a/block/fops.c b/block/fops.c
index 4c70fdc546e7..be2e41f160bf 100644
--- a/block/fops.c
+++ b/block/fops.c
@@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
 
 #define	BLKDEV_FALLOC_FL_SUPPORTED					\
 		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
-		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
+		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |	\
+		 FALLOC_FL_UNSHARE_RANGE)
 
 static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 			     loff_t len)
@@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
 	 * de-allocate mode calls to fallocate().
 	 */
 	switch (mode) {
+	case 0:
+	case FALLOC_FL_UNSHARE_RANGE:
+	case FALLOC_FL_KEEP_SIZE:
+	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
+		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
+					       len >> SECTOR_SHIFT, GFP_KERNEL);
+		break;
 	case FALLOC_FL_ZERO_RANGE:
 	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
 		error = truncate_bdev_range(bdev, file->f_mode, start, end);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index d766be7152e1..9820b3b039f2 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
 	    bio->bi_iter.bi_size &&
 	    bio_op(bio) != REQ_OP_DISCARD &&
 	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
-	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
+	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
+	    bio_op(bio) != REQ_OP_PROVISION)
 		return true;
 
 	return false;
@@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
 {
 	return bio_op(bio) == REQ_OP_DISCARD ||
 	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
-	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
+	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+	       bio_op(bio) == REQ_OP_PROVISION;
 }
 
 static inline void *bio_data(struct bio *bio)
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 99be590f952f..27bdf88f541c 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -385,7 +385,10 @@ enum req_op {
 	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
 	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
 
-	REQ_OP_LAST		= (__force blk_opf_t)36,
+	/* request device to provision block */
+	REQ_OP_PROVISION        = (__force blk_opf_t)37,
+
+	REQ_OP_LAST		= (__force blk_opf_t)38,
 };
 
 enum req_flag_bits {
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 941304f17492..239e2f418b6e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -303,6 +303,7 @@ struct queue_limits {
 	unsigned int		discard_granularity;
 	unsigned int		discard_alignment;
 	unsigned int		zone_write_granularity;
+	unsigned int		max_provision_sectors;
 
 	unsigned short		max_segments;
 	unsigned short		max_integrity_segments;
@@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
 		unsigned int max_discard_sectors);
 extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
 		unsigned int max_write_same_sectors);
+extern void blk_queue_max_provision_sectors(struct request_queue *q,
+		unsigned int max_provision_sectors);
 extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
 extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
 		unsigned int max_zone_append_sectors);
@@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp);
 
+extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
+		sector_t nr_sects, gfp_t gfp_mask);
+
 #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
 #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
 
@@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
 	return q->limits.max_discard_segments;
 }
 
+static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
+{
+	return q->limits.max_provision_sectors;
+}
+
 static inline unsigned int queue_max_segment_size(const struct request_queue *q)
 {
 	return q->limits.max_segment_size;
@@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
 	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
 }
 
+static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
+{
+	return bdev_get_queue(bdev)->limits.max_provision_sectors;
+}
+
 static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
 {
 	return blk_queue_zoned_model(bdev_get_queue(bdev));
-- 
2.40.1.521.gf1e218fcd8-goog

Re: [dm-devel] [PATCH v6 2/5] block: Introduce provisioning primitives

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

--
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https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [PATCH v6 2/5] block: Introduce provisioning primitives

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

Re: [dm-devel] [PATCH v6 2/5] block: Introduce provisioning primitives

[Darrick J. Wong]

On Fri, May 05, 2023 at 11:29:06PM -0700, Sarthak Kukreti wrote:
> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/blk-core.c          |  5 ++++
>  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
>  block/blk-merge.c         | 18 +++++++++++++
>  block/blk-settings.c      | 19 ++++++++++++++
>  block/blk-sysfs.c         |  9 +++++++
>  block/bounce.c            |  1 +
>  block/fops.c              | 10 +++++++-
>  include/linux/bio.h       |  6 +++--
>  include/linux/blk_types.h |  5 +++-
>  include/linux/blkdev.h    | 16 ++++++++++++
>  10 files changed, 138 insertions(+), 4 deletions(-)
> 
> diff --git a/block/blk-core.c b/block/blk-core.c
> index 42926e6cb83c..4a2342ba3a8b 100644
> --- a/block/blk-core.c
> +++ b/block/blk-core.c
> @@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
>  	REQ_OP_NAME(WRITE_ZEROES),
>  	REQ_OP_NAME(DRV_IN),
>  	REQ_OP_NAME(DRV_OUT),
> +	REQ_OP_NAME(PROVISION)
>  };
>  #undef REQ_OP_NAME
>  
> @@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
>  		if (!q->limits.max_write_zeroes_sectors)
>  			goto not_supported;
>  		break;
> +	case REQ_OP_PROVISION:
> +		if (!q->limits.max_provision_sectors)
> +			goto not_supported;
> +		break;
>  	default:
>  		break;
>  	}
> diff --git a/block/blk-lib.c b/block/blk-lib.c
> index e59c3069e835..647b6451660b 100644
> --- a/block/blk-lib.c
> +++ b/block/blk-lib.c
> @@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  	return ret;
>  }
>  EXPORT_SYMBOL(blkdev_issue_secure_erase);
> +
> +/**
> + * blkdev_issue_provision - provision a block range
> + * @bdev:	blockdev to write
> + * @sector:	start sector
> + * @nr_sects:	number of sectors to provision
> + * @gfp_mask:	memory allocation flags (for bio_alloc)
> + *
> + * Description:
> + *  Issues a provision request to the block device for the range of sectors.
> + *  For thinly provisioned block devices, this acts as a signal for the
> + *  underlying storage pool to allocate space for this block range.
> + */
> +int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp)
> +{
> +	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
> +	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
> +	struct bio *bio = NULL;
> +	struct blk_plug plug;
> +	int ret = 0;
> +
> +	if (max_sectors == 0)
> +		return -EOPNOTSUPP;
> +	if ((sector | nr_sects) & bs_mask)
> +		return -EINVAL;
> +	if (bdev_read_only(bdev))
> +		return -EPERM;
> +
> +	blk_start_plug(&plug);
> +	for (;;) {
> +		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
> +
> +		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
> +		bio->bi_iter.bi_sector = sector;
> +		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
> +
> +		sector += req_sects;
> +		nr_sects -= req_sects;
> +		if (!nr_sects) {
> +			ret = submit_bio_wait(bio);
> +			if (ret == -EOPNOTSUPP)
> +				ret = 0;

Why do we convert EOPNOTSUPP to success here?  If the device suddenly
forgets how to provision space, wouldn't we want to pass that up to the
caller?

(I'm not sure when this would happen -- perhaps the bdev has the general
provisioning capability but not for the specific range requested?)

The rest of the patch looks ok to me.

--D

> +			bio_put(bio);
> +			break;
> +		}
> +		cond_resched();
> +	}
> +	blk_finish_plug(&plug);
> +
> +	return ret;
> +}
> +EXPORT_SYMBOL(blkdev_issue_provision);
> diff --git a/block/blk-merge.c b/block/blk-merge.c
> index 6460abdb2426..a3ffebb97a1d 100644
> --- a/block/blk-merge.c
> +++ b/block/blk-merge.c
> @@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
>  	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
>  }
>  
> +static struct bio *bio_split_provision(struct bio *bio,
> +					const struct queue_limits *lim,
> +					unsigned int *nsegs, struct bio_set *bs)
> +{
> +	*nsegs = 0;
> +
> +	if (!lim->max_provision_sectors)
> +		return NULL;
> +
> +	if (bio_sectors(bio) <= lim->max_provision_sectors)
> +		return NULL;
> +
> +	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
> +}
> +
>  /*
>   * Return the maximum number of sectors from the start of a bio that may be
>   * submitted as a single request to a block device. If enough sectors remain,
> @@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
>  	case REQ_OP_WRITE_ZEROES:
>  		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
>  		break;
> +	case REQ_OP_PROVISION:
> +		split = bio_split_provision(bio, lim, nr_segs, bs);
> +		break;
>  	default:
>  		split = bio_split_rw(bio, lim, nr_segs, bs,
>  				get_max_io_size(bio, lim) << SECTOR_SHIFT);
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index 896b4654ab00..d303e6614c36 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
>  	lim->zoned = BLK_ZONED_NONE;
>  	lim->zone_write_granularity = 0;
>  	lim->dma_alignment = 511;
> +	lim->max_provision_sectors = 0;
>  }
>  
>  /**
> @@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
>  	lim->max_dev_sectors = UINT_MAX;
>  	lim->max_write_zeroes_sectors = UINT_MAX;
>  	lim->max_zone_append_sectors = UINT_MAX;
> +	lim->max_provision_sectors = UINT_MAX;
>  }
>  EXPORT_SYMBOL(blk_set_stacking_limits);
>  
> @@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  }
>  EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
>  
> +/**
> + * blk_queue_max_provision_sectors - set max sectors for a single provision
> + *
> + * @q:  the request queue for the device
> + * @max_provision_sectors: maximum number of sectors to provision per command
> + **/
> +
> +void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors)
> +{
> +	q->limits.max_provision_sectors = max_provision_sectors;
> +}
> +EXPORT_SYMBOL(blk_queue_max_provision_sectors);
> +
>  /**
>   * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
>   * @q:  the request queue for the device
> @@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
>  	t->max_segment_size = min_not_zero(t->max_segment_size,
>  					   b->max_segment_size);
>  
> +	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
> +						b->max_provision_sectors);
> +
>  	t->misaligned |= b->misaligned;
>  
>  	alignment = queue_limit_alignment_offset(b, start);
> diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
> index f1fce1c7fa44..0a3165211c66 100644
> --- a/block/blk-sysfs.c
> +++ b/block/blk-sysfs.c
> @@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
>  	return queue_var_show(0, page);
>  }
>  
> +static ssize_t queue_provision_max_show(struct request_queue *q,
> +		char *page)
> +{
> +	return sprintf(page, "%llu\n",
> +		(unsigned long long)q->limits.max_provision_sectors << 9);
> +}
> +
>  static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
>  {
>  	return queue_var_show(0, page);
> @@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
>  QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
>  QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
>  
> +QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
>  QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
> @@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
>  	&queue_discard_max_entry.attr,
>  	&queue_discard_max_hw_entry.attr,
>  	&queue_discard_zeroes_data_entry.attr,
> +	&queue_provision_max_entry.attr,
>  	&queue_write_same_max_entry.attr,
>  	&queue_write_zeroes_max_entry.attr,
>  	&queue_zone_append_max_entry.attr,
> diff --git a/block/bounce.c b/block/bounce.c
> index 7cfcb242f9a1..ab9d8723ae64 100644
> --- a/block/bounce.c
> +++ b/block/bounce.c
> @@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
>  	case REQ_OP_DISCARD:
>  	case REQ_OP_SECURE_ERASE:
>  	case REQ_OP_WRITE_ZEROES:
> +	case REQ_OP_PROVISION:
>  		break;
>  	default:
>  		bio_for_each_segment(bv, bio_src, iter)
> diff --git a/block/fops.c b/block/fops.c
> index 4c70fdc546e7..be2e41f160bf 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  
>  #define	BLKDEV_FALLOC_FL_SUPPORTED					\
>  		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
> -		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
> +		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |	\
> +		 FALLOC_FL_UNSHARE_RANGE)
>  
>  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  			     loff_t len)
> @@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	 * de-allocate mode calls to fallocate().
>  	 */
>  	switch (mode) {
> +	case 0:
> +	case FALLOC_FL_UNSHARE_RANGE:
> +	case FALLOC_FL_KEEP_SIZE:
> +	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
> +		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> +					       len >> SECTOR_SHIFT, GFP_KERNEL);
> +		break;
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
>  		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index d766be7152e1..9820b3b039f2 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
>  	    bio->bi_iter.bi_size &&
>  	    bio_op(bio) != REQ_OP_DISCARD &&
>  	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
> -	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
> +	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> +	    bio_op(bio) != REQ_OP_PROVISION)
>  		return true;
>  
>  	return false;
> @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
>  {
>  	return bio_op(bio) == REQ_OP_DISCARD ||
>  	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
> -	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
> +	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> +	       bio_op(bio) == REQ_OP_PROVISION;
>  }
>  
>  static inline void *bio_data(struct bio *bio)
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 99be590f952f..27bdf88f541c 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -385,7 +385,10 @@ enum req_op {
>  	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
>  	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
>  
> -	REQ_OP_LAST		= (__force blk_opf_t)36,
> +	/* request device to provision block */
> +	REQ_OP_PROVISION        = (__force blk_opf_t)37,
> +
> +	REQ_OP_LAST		= (__force blk_opf_t)38,
>  };
>  
>  enum req_flag_bits {
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 941304f17492..239e2f418b6e 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -303,6 +303,7 @@ struct queue_limits {
>  	unsigned int		discard_granularity;
>  	unsigned int		discard_alignment;
>  	unsigned int		zone_write_granularity;
> +	unsigned int		max_provision_sectors;
>  
>  	unsigned short		max_segments;
>  	unsigned short		max_integrity_segments;
> @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
>  		unsigned int max_discard_sectors);
>  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  		unsigned int max_write_same_sectors);
> +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors);
>  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
>  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
>  		unsigned int max_zone_append_sectors);
> @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
>  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  		sector_t nr_sects, gfp_t gfp);
>  
> +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp_mask);
> +
>  #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
>  #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
>  
> @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
>  	return q->limits.max_discard_segments;
>  }
>  
> +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> +{
> +	return q->limits.max_provision_sectors;
> +}
> +
>  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
>  {
>  	return q->limits.max_segment_size;
> @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
>  	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
>  }
>  
> +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> +{
> +	return bdev_get_queue(bdev)->limits.max_provision_sectors;
> +}
> +
>  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
>  {
>  	return blk_queue_zoned_model(bdev_get_queue(bdev));
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [PATCH v6 2/5] block: Introduce provisioning primitives

[Darrick J. Wong]

On Fri, May 05, 2023 at 11:29:06PM -0700, Sarthak Kukreti wrote:
> Introduce block request REQ_OP_PROVISION. The intent of this request
> is to request underlying storage to preallocate disk space for the given
> block range. Block devices that support this capability will export
> a provision limit within their request queues.
> 
> This patch also adds the capability to call fallocate() in mode 0
> on block devices, which will send REQ_OP_PROVISION to the block
> device for the specified range,
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  block/blk-core.c          |  5 ++++
>  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
>  block/blk-merge.c         | 18 +++++++++++++
>  block/blk-settings.c      | 19 ++++++++++++++
>  block/blk-sysfs.c         |  9 +++++++
>  block/bounce.c            |  1 +
>  block/fops.c              | 10 +++++++-
>  include/linux/bio.h       |  6 +++--
>  include/linux/blk_types.h |  5 +++-
>  include/linux/blkdev.h    | 16 ++++++++++++
>  10 files changed, 138 insertions(+), 4 deletions(-)
> 
> diff --git a/block/blk-core.c b/block/blk-core.c
> index 42926e6cb83c..4a2342ba3a8b 100644
> --- a/block/blk-core.c
> +++ b/block/blk-core.c
> @@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
>  	REQ_OP_NAME(WRITE_ZEROES),
>  	REQ_OP_NAME(DRV_IN),
>  	REQ_OP_NAME(DRV_OUT),
> +	REQ_OP_NAME(PROVISION)
>  };
>  #undef REQ_OP_NAME
>  
> @@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
>  		if (!q->limits.max_write_zeroes_sectors)
>  			goto not_supported;
>  		break;
> +	case REQ_OP_PROVISION:
> +		if (!q->limits.max_provision_sectors)
> +			goto not_supported;
> +		break;
>  	default:
>  		break;
>  	}
> diff --git a/block/blk-lib.c b/block/blk-lib.c
> index e59c3069e835..647b6451660b 100644
> --- a/block/blk-lib.c
> +++ b/block/blk-lib.c
> @@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  	return ret;
>  }
>  EXPORT_SYMBOL(blkdev_issue_secure_erase);
> +
> +/**
> + * blkdev_issue_provision - provision a block range
> + * @bdev:	blockdev to write
> + * @sector:	start sector
> + * @nr_sects:	number of sectors to provision
> + * @gfp_mask:	memory allocation flags (for bio_alloc)
> + *
> + * Description:
> + *  Issues a provision request to the block device for the range of sectors.
> + *  For thinly provisioned block devices, this acts as a signal for the
> + *  underlying storage pool to allocate space for this block range.
> + */
> +int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp)
> +{
> +	sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
> +	unsigned int max_sectors = bdev_max_provision_sectors(bdev);
> +	struct bio *bio = NULL;
> +	struct blk_plug plug;
> +	int ret = 0;
> +
> +	if (max_sectors == 0)
> +		return -EOPNOTSUPP;
> +	if ((sector | nr_sects) & bs_mask)
> +		return -EINVAL;
> +	if (bdev_read_only(bdev))
> +		return -EPERM;
> +
> +	blk_start_plug(&plug);
> +	for (;;) {
> +		unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
> +
> +		bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
> +		bio->bi_iter.bi_sector = sector;
> +		bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
> +
> +		sector += req_sects;
> +		nr_sects -= req_sects;
> +		if (!nr_sects) {
> +			ret = submit_bio_wait(bio);
> +			if (ret == -EOPNOTSUPP)
> +				ret = 0;

Why do we convert EOPNOTSUPP to success here?  If the device suddenly
forgets how to provision space, wouldn't we want to pass that up to the
caller?

(I'm not sure when this would happen -- perhaps the bdev has the general
provisioning capability but not for the specific range requested?)

The rest of the patch looks ok to me.

--D

> +			bio_put(bio);
> +			break;
> +		}
> +		cond_resched();
> +	}
> +	blk_finish_plug(&plug);
> +
> +	return ret;
> +}
> +EXPORT_SYMBOL(blkdev_issue_provision);
> diff --git a/block/blk-merge.c b/block/blk-merge.c
> index 6460abdb2426..a3ffebb97a1d 100644
> --- a/block/blk-merge.c
> +++ b/block/blk-merge.c
> @@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
>  	return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
>  }
>  
> +static struct bio *bio_split_provision(struct bio *bio,
> +					const struct queue_limits *lim,
> +					unsigned int *nsegs, struct bio_set *bs)
> +{
> +	*nsegs = 0;
> +
> +	if (!lim->max_provision_sectors)
> +		return NULL;
> +
> +	if (bio_sectors(bio) <= lim->max_provision_sectors)
> +		return NULL;
> +
> +	return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
> +}
> +
>  /*
>   * Return the maximum number of sectors from the start of a bio that may be
>   * submitted as a single request to a block device. If enough sectors remain,
> @@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
>  	case REQ_OP_WRITE_ZEROES:
>  		split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
>  		break;
> +	case REQ_OP_PROVISION:
> +		split = bio_split_provision(bio, lim, nr_segs, bs);
> +		break;
>  	default:
>  		split = bio_split_rw(bio, lim, nr_segs, bs,
>  				get_max_io_size(bio, lim) << SECTOR_SHIFT);
> diff --git a/block/blk-settings.c b/block/blk-settings.c
> index 896b4654ab00..d303e6614c36 100644
> --- a/block/blk-settings.c
> +++ b/block/blk-settings.c
> @@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
>  	lim->zoned = BLK_ZONED_NONE;
>  	lim->zone_write_granularity = 0;
>  	lim->dma_alignment = 511;
> +	lim->max_provision_sectors = 0;
>  }
>  
>  /**
> @@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
>  	lim->max_dev_sectors = UINT_MAX;
>  	lim->max_write_zeroes_sectors = UINT_MAX;
>  	lim->max_zone_append_sectors = UINT_MAX;
> +	lim->max_provision_sectors = UINT_MAX;
>  }
>  EXPORT_SYMBOL(blk_set_stacking_limits);
>  
> @@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  }
>  EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
>  
> +/**
> + * blk_queue_max_provision_sectors - set max sectors for a single provision
> + *
> + * @q:  the request queue for the device
> + * @max_provision_sectors: maximum number of sectors to provision per command
> + **/
> +
> +void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors)
> +{
> +	q->limits.max_provision_sectors = max_provision_sectors;
> +}
> +EXPORT_SYMBOL(blk_queue_max_provision_sectors);
> +
>  /**
>   * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
>   * @q:  the request queue for the device
> @@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
>  	t->max_segment_size = min_not_zero(t->max_segment_size,
>  					   b->max_segment_size);
>  
> +	t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
> +						b->max_provision_sectors);
> +
>  	t->misaligned |= b->misaligned;
>  
>  	alignment = queue_limit_alignment_offset(b, start);
> diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
> index f1fce1c7fa44..0a3165211c66 100644
> --- a/block/blk-sysfs.c
> +++ b/block/blk-sysfs.c
> @@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
>  	return queue_var_show(0, page);
>  }
>  
> +static ssize_t queue_provision_max_show(struct request_queue *q,
> +		char *page)
> +{
> +	return sprintf(page, "%llu\n",
> +		(unsigned long long)q->limits.max_provision_sectors << 9);
> +}
> +
>  static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
>  {
>  	return queue_var_show(0, page);
> @@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
>  QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
>  QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
>  
> +QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
>  QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
>  QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
> @@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
>  	&queue_discard_max_entry.attr,
>  	&queue_discard_max_hw_entry.attr,
>  	&queue_discard_zeroes_data_entry.attr,
> +	&queue_provision_max_entry.attr,
>  	&queue_write_same_max_entry.attr,
>  	&queue_write_zeroes_max_entry.attr,
>  	&queue_zone_append_max_entry.attr,
> diff --git a/block/bounce.c b/block/bounce.c
> index 7cfcb242f9a1..ab9d8723ae64 100644
> --- a/block/bounce.c
> +++ b/block/bounce.c
> @@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
>  	case REQ_OP_DISCARD:
>  	case REQ_OP_SECURE_ERASE:
>  	case REQ_OP_WRITE_ZEROES:
> +	case REQ_OP_PROVISION:
>  		break;
>  	default:
>  		bio_for_each_segment(bv, bio_src, iter)
> diff --git a/block/fops.c b/block/fops.c
> index 4c70fdc546e7..be2e41f160bf 100644
> --- a/block/fops.c
> +++ b/block/fops.c
> @@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
>  
>  #define	BLKDEV_FALLOC_FL_SUPPORTED					\
>  		(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |		\
> -		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
> +		 FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |	\
> +		 FALLOC_FL_UNSHARE_RANGE)
>  
>  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  			     loff_t len)
> @@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
>  	 * de-allocate mode calls to fallocate().
>  	 */
>  	switch (mode) {
> +	case 0:
> +	case FALLOC_FL_UNSHARE_RANGE:
> +	case FALLOC_FL_KEEP_SIZE:
> +	case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
> +		error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> +					       len >> SECTOR_SHIFT, GFP_KERNEL);
> +		break;
>  	case FALLOC_FL_ZERO_RANGE:
>  	case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
>  		error = truncate_bdev_range(bdev, file->f_mode, start, end);
> diff --git a/include/linux/bio.h b/include/linux/bio.h
> index d766be7152e1..9820b3b039f2 100644
> --- a/include/linux/bio.h
> +++ b/include/linux/bio.h
> @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
>  	    bio->bi_iter.bi_size &&
>  	    bio_op(bio) != REQ_OP_DISCARD &&
>  	    bio_op(bio) != REQ_OP_SECURE_ERASE &&
> -	    bio_op(bio) != REQ_OP_WRITE_ZEROES)
> +	    bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> +	    bio_op(bio) != REQ_OP_PROVISION)
>  		return true;
>  
>  	return false;
> @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
>  {
>  	return bio_op(bio) == REQ_OP_DISCARD ||
>  	       bio_op(bio) == REQ_OP_SECURE_ERASE ||
> -	       bio_op(bio) == REQ_OP_WRITE_ZEROES;
> +	       bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> +	       bio_op(bio) == REQ_OP_PROVISION;
>  }
>  
>  static inline void *bio_data(struct bio *bio)
> diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> index 99be590f952f..27bdf88f541c 100644
> --- a/include/linux/blk_types.h
> +++ b/include/linux/blk_types.h
> @@ -385,7 +385,10 @@ enum req_op {
>  	REQ_OP_DRV_IN		= (__force blk_opf_t)34,
>  	REQ_OP_DRV_OUT		= (__force blk_opf_t)35,
>  
> -	REQ_OP_LAST		= (__force blk_opf_t)36,
> +	/* request device to provision block */
> +	REQ_OP_PROVISION        = (__force blk_opf_t)37,
> +
> +	REQ_OP_LAST		= (__force blk_opf_t)38,
>  };
>  
>  enum req_flag_bits {
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 941304f17492..239e2f418b6e 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -303,6 +303,7 @@ struct queue_limits {
>  	unsigned int		discard_granularity;
>  	unsigned int		discard_alignment;
>  	unsigned int		zone_write_granularity;
> +	unsigned int		max_provision_sectors;
>  
>  	unsigned short		max_segments;
>  	unsigned short		max_integrity_segments;
> @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
>  		unsigned int max_discard_sectors);
>  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
>  		unsigned int max_write_same_sectors);
> +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> +		unsigned int max_provision_sectors);
>  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
>  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
>  		unsigned int max_zone_append_sectors);
> @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
>  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
>  		sector_t nr_sects, gfp_t gfp);
>  
> +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> +		sector_t nr_sects, gfp_t gfp_mask);
> +
>  #define BLKDEV_ZERO_NOUNMAP	(1 << 0)  /* do not free blocks */
>  #define BLKDEV_ZERO_NOFALLBACK	(1 << 1)  /* don't write explicit zeroes */
>  
> @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
>  	return q->limits.max_discard_segments;
>  }
>  
> +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> +{
> +	return q->limits.max_provision_sectors;
> +}
> +
>  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
>  {
>  	return q->limits.max_segment_size;
> @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
>  	return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
>  }
>  
> +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> +{
> +	return bdev_get_queue(bdev)->limits.max_provision_sectors;
> +}
> +
>  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
>  {
>  	return blk_queue_zoned_model(bdev_get_queue(bdev));
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

Re: [dm-devel] [PATCH v6 2/5] block: Introduce provisioning primitives

[Sarthak Kukreti]

On Fri, May 12, 2023 at 11:37 AM Darrick J. Wong <djwong@kernel.org> wrote:
>
> On Fri, May 05, 2023 at 11:29:06PM -0700, Sarthak Kukreti wrote:
> > Introduce block request REQ_OP_PROVISION. The intent of this request
> > is to request underlying storage to preallocate disk space for the given
> > block range. Block devices that support this capability will export
> > a provision limit within their request queues.
> >
> > This patch also adds the capability to call fallocate() in mode 0
> > on block devices, which will send REQ_OP_PROVISION to the block
> > device for the specified range,
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/blk-core.c          |  5 ++++
> >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> >  block/blk-merge.c         | 18 +++++++++++++
> >  block/blk-settings.c      | 19 ++++++++++++++
> >  block/blk-sysfs.c         |  9 +++++++
> >  block/bounce.c            |  1 +
> >  block/fops.c              | 10 +++++++-
> >  include/linux/bio.h       |  6 +++--
> >  include/linux/blk_types.h |  5 +++-
> >  include/linux/blkdev.h    | 16 ++++++++++++
> >  10 files changed, 138 insertions(+), 4 deletions(-)
> >
> > diff --git a/block/blk-core.c b/block/blk-core.c
> > index 42926e6cb83c..4a2342ba3a8b 100644
> > --- a/block/blk-core.c
> > +++ b/block/blk-core.c
> > @@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
> >       REQ_OP_NAME(WRITE_ZEROES),
> >       REQ_OP_NAME(DRV_IN),
> >       REQ_OP_NAME(DRV_OUT),
> > +     REQ_OP_NAME(PROVISION)
> >  };
> >  #undef REQ_OP_NAME
> >
> > @@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
> >               if (!q->limits.max_write_zeroes_sectors)
> >                       goto not_supported;
> >               break;
> > +     case REQ_OP_PROVISION:
> > +             if (!q->limits.max_provision_sectors)
> > +                     goto not_supported;
> > +             break;
> >       default:
> >               break;
> >       }
> > diff --git a/block/blk-lib.c b/block/blk-lib.c
> > index e59c3069e835..647b6451660b 100644
> > --- a/block/blk-lib.c
> > +++ b/block/blk-lib.c
> > @@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
> >       return ret;
> >  }
> >  EXPORT_SYMBOL(blkdev_issue_secure_erase);
> > +
> > +/**
> > + * blkdev_issue_provision - provision a block range
> > + * @bdev:    blockdev to write
> > + * @sector:  start sector
> > + * @nr_sects:        number of sectors to provision
> > + * @gfp_mask:        memory allocation flags (for bio_alloc)
> > + *
> > + * Description:
> > + *  Issues a provision request to the block device for the range of sectors.
> > + *  For thinly provisioned block devices, this acts as a signal for the
> > + *  underlying storage pool to allocate space for this block range.
> > + */
> > +int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> > +             sector_t nr_sects, gfp_t gfp)
> > +{
> > +     sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
> > +     unsigned int max_sectors = bdev_max_provision_sectors(bdev);
> > +     struct bio *bio = NULL;
> > +     struct blk_plug plug;
> > +     int ret = 0;
> > +
> > +     if (max_sectors == 0)
> > +             return -EOPNOTSUPP;
> > +     if ((sector | nr_sects) & bs_mask)
> > +             return -EINVAL;
> > +     if (bdev_read_only(bdev))
> > +             return -EPERM;
> > +
> > +     blk_start_plug(&plug);
> > +     for (;;) {
> > +             unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
> > +
> > +             bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
> > +             bio->bi_iter.bi_sector = sector;
> > +             bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
> > +
> > +             sector += req_sects;
> > +             nr_sects -= req_sects;
> > +             if (!nr_sects) {
> > +                     ret = submit_bio_wait(bio);
> > +                     if (ret == -EOPNOTSUPP)
> > +                             ret = 0;
>
> Why do we convert EOPNOTSUPP to success here?  If the device suddenly
> forgets how to provision space, wouldn't we want to pass that up to the
> caller?
>
> (I'm not sure when this would happen -- perhaps the bdev has the general
> provisioning capability but not for the specific range requested?)
>
Ah good catch, I initially wired it up to be less noisy in the kernel
logs but left it behind accidentally. The error should definitely be
passed through: one case where this can happen is if the device-mapper
table comprises several underlying targets but only a few of them
support provision. I'll fix this in v7.

Best
Sarthak

> The rest of the patch looks ok to me.
>
> --D
>
> > +                     bio_put(bio);
> > +                     break;
> > +             }
> > +             cond_resched();
> > +     }
> > +     blk_finish_plug(&plug);
> > +
> > +     return ret;
> > +}
> > +EXPORT_SYMBOL(blkdev_issue_provision);
> > diff --git a/block/blk-merge.c b/block/blk-merge.c
> > index 6460abdb2426..a3ffebb97a1d 100644
> > --- a/block/blk-merge.c
> > +++ b/block/blk-merge.c
> > @@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
> >       return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
> >  }
> >
> > +static struct bio *bio_split_provision(struct bio *bio,
> > +                                     const struct queue_limits *lim,
> > +                                     unsigned int *nsegs, struct bio_set *bs)
> > +{
> > +     *nsegs = 0;
> > +
> > +     if (!lim->max_provision_sectors)
> > +             return NULL;
> > +
> > +     if (bio_sectors(bio) <= lim->max_provision_sectors)
> > +             return NULL;
> > +
> > +     return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
> > +}
> > +
> >  /*
> >   * Return the maximum number of sectors from the start of a bio that may be
> >   * submitted as a single request to a block device. If enough sectors remain,
> > @@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
> >       case REQ_OP_WRITE_ZEROES:
> >               split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
> >               break;
> > +     case REQ_OP_PROVISION:
> > +             split = bio_split_provision(bio, lim, nr_segs, bs);
> > +             break;
> >       default:
> >               split = bio_split_rw(bio, lim, nr_segs, bs,
> >                               get_max_io_size(bio, lim) << SECTOR_SHIFT);
> > diff --git a/block/blk-settings.c b/block/blk-settings.c
> > index 896b4654ab00..d303e6614c36 100644
> > --- a/block/blk-settings.c
> > +++ b/block/blk-settings.c
> > @@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
> >       lim->zoned = BLK_ZONED_NONE;
> >       lim->zone_write_granularity = 0;
> >       lim->dma_alignment = 511;
> > +     lim->max_provision_sectors = 0;
> >  }
> >
> >  /**
> > @@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
> >       lim->max_dev_sectors = UINT_MAX;
> >       lim->max_write_zeroes_sectors = UINT_MAX;
> >       lim->max_zone_append_sectors = UINT_MAX;
> > +     lim->max_provision_sectors = UINT_MAX;
> >  }
> >  EXPORT_SYMBOL(blk_set_stacking_limits);
> >
> > @@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
> >  }
> >  EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
> >
> > +/**
> > + * blk_queue_max_provision_sectors - set max sectors for a single provision
> > + *
> > + * @q:  the request queue for the device
> > + * @max_provision_sectors: maximum number of sectors to provision per command
> > + **/
> > +
> > +void blk_queue_max_provision_sectors(struct request_queue *q,
> > +             unsigned int max_provision_sectors)
> > +{
> > +     q->limits.max_provision_sectors = max_provision_sectors;
> > +}
> > +EXPORT_SYMBOL(blk_queue_max_provision_sectors);
> > +
> >  /**
> >   * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
> >   * @q:  the request queue for the device
> > @@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
> >       t->max_segment_size = min_not_zero(t->max_segment_size,
> >                                          b->max_segment_size);
> >
> > +     t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
> > +                                             b->max_provision_sectors);
> > +
> >       t->misaligned |= b->misaligned;
> >
> >       alignment = queue_limit_alignment_offset(b, start);
> > diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
> > index f1fce1c7fa44..0a3165211c66 100644
> > --- a/block/blk-sysfs.c
> > +++ b/block/blk-sysfs.c
> > @@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
> >       return queue_var_show(0, page);
> >  }
> >
> > +static ssize_t queue_provision_max_show(struct request_queue *q,
> > +             char *page)
> > +{
> > +     return sprintf(page, "%llu\n",
> > +             (unsigned long long)q->limits.max_provision_sectors << 9);
> > +}
> > +
> >  static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
> >  {
> >       return queue_var_show(0, page);
> > @@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
> >  QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
> >  QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
> >
> > +QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
> >  QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
> >  QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
> >  QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
> > @@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
> >       &queue_discard_max_entry.attr,
> >       &queue_discard_max_hw_entry.attr,
> >       &queue_discard_zeroes_data_entry.attr,
> > +     &queue_provision_max_entry.attr,
> >       &queue_write_same_max_entry.attr,
> >       &queue_write_zeroes_max_entry.attr,
> >       &queue_zone_append_max_entry.attr,
> > diff --git a/block/bounce.c b/block/bounce.c
> > index 7cfcb242f9a1..ab9d8723ae64 100644
> > --- a/block/bounce.c
> > +++ b/block/bounce.c
> > @@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
> >       case REQ_OP_DISCARD:
> >       case REQ_OP_SECURE_ERASE:
> >       case REQ_OP_WRITE_ZEROES:
> > +     case REQ_OP_PROVISION:
> >               break;
> >       default:
> >               bio_for_each_segment(bv, bio_src, iter)
> > diff --git a/block/fops.c b/block/fops.c
> > index 4c70fdc546e7..be2e41f160bf 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
> >
> >  #define      BLKDEV_FALLOC_FL_SUPPORTED                                      \
> >               (FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |           \
> > -              FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
> > +              FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |       \
> > +              FALLOC_FL_UNSHARE_RANGE)
> >
> >  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >                            loff_t len)
> > @@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >        * de-allocate mode calls to fallocate().
> >        */
> >       switch (mode) {
> > +     case 0:
> > +     case FALLOC_FL_UNSHARE_RANGE:
> > +     case FALLOC_FL_KEEP_SIZE:
> > +     case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
> > +             error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> > +                                            len >> SECTOR_SHIFT, GFP_KERNEL);
> > +             break;
> >       case FALLOC_FL_ZERO_RANGE:
> >       case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> >               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > diff --git a/include/linux/bio.h b/include/linux/bio.h
> > index d766be7152e1..9820b3b039f2 100644
> > --- a/include/linux/bio.h
> > +++ b/include/linux/bio.h
> > @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
> >           bio->bi_iter.bi_size &&
> >           bio_op(bio) != REQ_OP_DISCARD &&
> >           bio_op(bio) != REQ_OP_SECURE_ERASE &&
> > -         bio_op(bio) != REQ_OP_WRITE_ZEROES)
> > +         bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> > +         bio_op(bio) != REQ_OP_PROVISION)
> >               return true;
> >
> >       return false;
> > @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
> >  {
> >       return bio_op(bio) == REQ_OP_DISCARD ||
> >              bio_op(bio) == REQ_OP_SECURE_ERASE ||
> > -            bio_op(bio) == REQ_OP_WRITE_ZEROES;
> > +            bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> > +            bio_op(bio) == REQ_OP_PROVISION;
> >  }
> >
> >  static inline void *bio_data(struct bio *bio)
> > diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> > index 99be590f952f..27bdf88f541c 100644
> > --- a/include/linux/blk_types.h
> > +++ b/include/linux/blk_types.h
> > @@ -385,7 +385,10 @@ enum req_op {
> >       REQ_OP_DRV_IN           = (__force blk_opf_t)34,
> >       REQ_OP_DRV_OUT          = (__force blk_opf_t)35,
> >
> > -     REQ_OP_LAST             = (__force blk_opf_t)36,
> > +     /* request device to provision block */
> > +     REQ_OP_PROVISION        = (__force blk_opf_t)37,
> > +
> > +     REQ_OP_LAST             = (__force blk_opf_t)38,
> >  };
> >
> >  enum req_flag_bits {
> > diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> > index 941304f17492..239e2f418b6e 100644
> > --- a/include/linux/blkdev.h
> > +++ b/include/linux/blkdev.h
> > @@ -303,6 +303,7 @@ struct queue_limits {
> >       unsigned int            discard_granularity;
> >       unsigned int            discard_alignment;
> >       unsigned int            zone_write_granularity;
> > +     unsigned int            max_provision_sectors;
> >
> >       unsigned short          max_segments;
> >       unsigned short          max_integrity_segments;
> > @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
> >               unsigned int max_discard_sectors);
> >  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
> >               unsigned int max_write_same_sectors);
> > +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> > +             unsigned int max_provision_sectors);
> >  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
> >  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
> >               unsigned int max_zone_append_sectors);
> > @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
> >  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
> >               sector_t nr_sects, gfp_t gfp);
> >
> > +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> > +             sector_t nr_sects, gfp_t gfp_mask);
> > +
> >  #define BLKDEV_ZERO_NOUNMAP  (1 << 0)  /* do not free blocks */
> >  #define BLKDEV_ZERO_NOFALLBACK       (1 << 1)  /* don't write explicit zeroes */
> >
> > @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
> >       return q->limits.max_discard_segments;
> >  }
> >
> > +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> > +{
> > +     return q->limits.max_provision_sectors;
> > +}
> > +
> >  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
> >  {
> >       return q->limits.max_segment_size;
> > @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
> >       return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
> >  }
> >
> > +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> > +{
> > +     return bdev_get_queue(bdev)->limits.max_provision_sectors;
> > +}
> > +
> >  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
> >  {
> >       return blk_queue_zoned_model(bdev_get_queue(bdev));
> > --
> > 2.40.1.521.gf1e218fcd8-goog
> >

--
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Re: [PATCH v6 2/5] block: Introduce provisioning primitives

[Sarthak Kukreti]

On Fri, May 12, 2023 at 11:37 AM Darrick J. Wong <djwong@kernel.org> wrote:
>
> On Fri, May 05, 2023 at 11:29:06PM -0700, Sarthak Kukreti wrote:
> > Introduce block request REQ_OP_PROVISION. The intent of this request
> > is to request underlying storage to preallocate disk space for the given
> > block range. Block devices that support this capability will export
> > a provision limit within their request queues.
> >
> > This patch also adds the capability to call fallocate() in mode 0
> > on block devices, which will send REQ_OP_PROVISION to the block
> > device for the specified range,
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  block/blk-core.c          |  5 ++++
> >  block/blk-lib.c           | 53 +++++++++++++++++++++++++++++++++++++++
> >  block/blk-merge.c         | 18 +++++++++++++
> >  block/blk-settings.c      | 19 ++++++++++++++
> >  block/blk-sysfs.c         |  9 +++++++
> >  block/bounce.c            |  1 +
> >  block/fops.c              | 10 +++++++-
> >  include/linux/bio.h       |  6 +++--
> >  include/linux/blk_types.h |  5 +++-
> >  include/linux/blkdev.h    | 16 ++++++++++++
> >  10 files changed, 138 insertions(+), 4 deletions(-)
> >
> > diff --git a/block/blk-core.c b/block/blk-core.c
> > index 42926e6cb83c..4a2342ba3a8b 100644
> > --- a/block/blk-core.c
> > +++ b/block/blk-core.c
> > @@ -123,6 +123,7 @@ static const char *const blk_op_name[] = {
> >       REQ_OP_NAME(WRITE_ZEROES),
> >       REQ_OP_NAME(DRV_IN),
> >       REQ_OP_NAME(DRV_OUT),
> > +     REQ_OP_NAME(PROVISION)
> >  };
> >  #undef REQ_OP_NAME
> >
> > @@ -798,6 +799,10 @@ void submit_bio_noacct(struct bio *bio)
> >               if (!q->limits.max_write_zeroes_sectors)
> >                       goto not_supported;
> >               break;
> > +     case REQ_OP_PROVISION:
> > +             if (!q->limits.max_provision_sectors)
> > +                     goto not_supported;
> > +             break;
> >       default:
> >               break;
> >       }
> > diff --git a/block/blk-lib.c b/block/blk-lib.c
> > index e59c3069e835..647b6451660b 100644
> > --- a/block/blk-lib.c
> > +++ b/block/blk-lib.c
> > @@ -343,3 +343,56 @@ int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
> >       return ret;
> >  }
> >  EXPORT_SYMBOL(blkdev_issue_secure_erase);
> > +
> > +/**
> > + * blkdev_issue_provision - provision a block range
> > + * @bdev:    blockdev to write
> > + * @sector:  start sector
> > + * @nr_sects:        number of sectors to provision
> > + * @gfp_mask:        memory allocation flags (for bio_alloc)
> > + *
> > + * Description:
> > + *  Issues a provision request to the block device for the range of sectors.
> > + *  For thinly provisioned block devices, this acts as a signal for the
> > + *  underlying storage pool to allocate space for this block range.
> > + */
> > +int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> > +             sector_t nr_sects, gfp_t gfp)
> > +{
> > +     sector_t bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
> > +     unsigned int max_sectors = bdev_max_provision_sectors(bdev);
> > +     struct bio *bio = NULL;
> > +     struct blk_plug plug;
> > +     int ret = 0;
> > +
> > +     if (max_sectors == 0)
> > +             return -EOPNOTSUPP;
> > +     if ((sector | nr_sects) & bs_mask)
> > +             return -EINVAL;
> > +     if (bdev_read_only(bdev))
> > +             return -EPERM;
> > +
> > +     blk_start_plug(&plug);
> > +     for (;;) {
> > +             unsigned int req_sects = min_t(sector_t, nr_sects, max_sectors);
> > +
> > +             bio = blk_next_bio(bio, bdev, 0, REQ_OP_PROVISION, gfp);
> > +             bio->bi_iter.bi_sector = sector;
> > +             bio->bi_iter.bi_size = req_sects << SECTOR_SHIFT;
> > +
> > +             sector += req_sects;
> > +             nr_sects -= req_sects;
> > +             if (!nr_sects) {
> > +                     ret = submit_bio_wait(bio);
> > +                     if (ret == -EOPNOTSUPP)
> > +                             ret = 0;
>
> Why do we convert EOPNOTSUPP to success here?  If the device suddenly
> forgets how to provision space, wouldn't we want to pass that up to the
> caller?
>
> (I'm not sure when this would happen -- perhaps the bdev has the general
> provisioning capability but not for the specific range requested?)
>
Ah good catch, I initially wired it up to be less noisy in the kernel
logs but left it behind accidentally. The error should definitely be
passed through: one case where this can happen is if the device-mapper
table comprises several underlying targets but only a few of them
support provision. I'll fix this in v7.

Best
Sarthak

> The rest of the patch looks ok to me.
>
> --D
>
> > +                     bio_put(bio);
> > +                     break;
> > +             }
> > +             cond_resched();
> > +     }
> > +     blk_finish_plug(&plug);
> > +
> > +     return ret;
> > +}
> > +EXPORT_SYMBOL(blkdev_issue_provision);
> > diff --git a/block/blk-merge.c b/block/blk-merge.c
> > index 6460abdb2426..a3ffebb97a1d 100644
> > --- a/block/blk-merge.c
> > +++ b/block/blk-merge.c
> > @@ -158,6 +158,21 @@ static struct bio *bio_split_write_zeroes(struct bio *bio,
> >       return bio_split(bio, lim->max_write_zeroes_sectors, GFP_NOIO, bs);
> >  }
> >
> > +static struct bio *bio_split_provision(struct bio *bio,
> > +                                     const struct queue_limits *lim,
> > +                                     unsigned int *nsegs, struct bio_set *bs)
> > +{
> > +     *nsegs = 0;
> > +
> > +     if (!lim->max_provision_sectors)
> > +             return NULL;
> > +
> > +     if (bio_sectors(bio) <= lim->max_provision_sectors)
> > +             return NULL;
> > +
> > +     return bio_split(bio, lim->max_provision_sectors, GFP_NOIO, bs);
> > +}
> > +
> >  /*
> >   * Return the maximum number of sectors from the start of a bio that may be
> >   * submitted as a single request to a block device. If enough sectors remain,
> > @@ -366,6 +381,9 @@ struct bio *__bio_split_to_limits(struct bio *bio,
> >       case REQ_OP_WRITE_ZEROES:
> >               split = bio_split_write_zeroes(bio, lim, nr_segs, bs);
> >               break;
> > +     case REQ_OP_PROVISION:
> > +             split = bio_split_provision(bio, lim, nr_segs, bs);
> > +             break;
> >       default:
> >               split = bio_split_rw(bio, lim, nr_segs, bs,
> >                               get_max_io_size(bio, lim) << SECTOR_SHIFT);
> > diff --git a/block/blk-settings.c b/block/blk-settings.c
> > index 896b4654ab00..d303e6614c36 100644
> > --- a/block/blk-settings.c
> > +++ b/block/blk-settings.c
> > @@ -59,6 +59,7 @@ void blk_set_default_limits(struct queue_limits *lim)
> >       lim->zoned = BLK_ZONED_NONE;
> >       lim->zone_write_granularity = 0;
> >       lim->dma_alignment = 511;
> > +     lim->max_provision_sectors = 0;
> >  }
> >
> >  /**
> > @@ -82,6 +83,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
> >       lim->max_dev_sectors = UINT_MAX;
> >       lim->max_write_zeroes_sectors = UINT_MAX;
> >       lim->max_zone_append_sectors = UINT_MAX;
> > +     lim->max_provision_sectors = UINT_MAX;
> >  }
> >  EXPORT_SYMBOL(blk_set_stacking_limits);
> >
> > @@ -208,6 +210,20 @@ void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
> >  }
> >  EXPORT_SYMBOL(blk_queue_max_write_zeroes_sectors);
> >
> > +/**
> > + * blk_queue_max_provision_sectors - set max sectors for a single provision
> > + *
> > + * @q:  the request queue for the device
> > + * @max_provision_sectors: maximum number of sectors to provision per command
> > + **/
> > +
> > +void blk_queue_max_provision_sectors(struct request_queue *q,
> > +             unsigned int max_provision_sectors)
> > +{
> > +     q->limits.max_provision_sectors = max_provision_sectors;
> > +}
> > +EXPORT_SYMBOL(blk_queue_max_provision_sectors);
> > +
> >  /**
> >   * blk_queue_max_zone_append_sectors - set max sectors for a single zone append
> >   * @q:  the request queue for the device
> > @@ -578,6 +594,9 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
> >       t->max_segment_size = min_not_zero(t->max_segment_size,
> >                                          b->max_segment_size);
> >
> > +     t->max_provision_sectors = min_not_zero(t->max_provision_sectors,
> > +                                             b->max_provision_sectors);
> > +
> >       t->misaligned |= b->misaligned;
> >
> >       alignment = queue_limit_alignment_offset(b, start);
> > diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
> > index f1fce1c7fa44..0a3165211c66 100644
> > --- a/block/blk-sysfs.c
> > +++ b/block/blk-sysfs.c
> > @@ -213,6 +213,13 @@ static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *pag
> >       return queue_var_show(0, page);
> >  }
> >
> > +static ssize_t queue_provision_max_show(struct request_queue *q,
> > +             char *page)
> > +{
> > +     return sprintf(page, "%llu\n",
> > +             (unsigned long long)q->limits.max_provision_sectors << 9);
> > +}
> > +
> >  static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)
> >  {
> >       return queue_var_show(0, page);
> > @@ -604,6 +611,7 @@ QUEUE_RO_ENTRY(queue_discard_max_hw, "discard_max_hw_bytes");
> >  QUEUE_RW_ENTRY(queue_discard_max, "discard_max_bytes");
> >  QUEUE_RO_ENTRY(queue_discard_zeroes_data, "discard_zeroes_data");
> >
> > +QUEUE_RO_ENTRY(queue_provision_max, "provision_max_bytes");
> >  QUEUE_RO_ENTRY(queue_write_same_max, "write_same_max_bytes");
> >  QUEUE_RO_ENTRY(queue_write_zeroes_max, "write_zeroes_max_bytes");
> >  QUEUE_RO_ENTRY(queue_zone_append_max, "zone_append_max_bytes");
> > @@ -661,6 +669,7 @@ static struct attribute *queue_attrs[] = {
> >       &queue_discard_max_entry.attr,
> >       &queue_discard_max_hw_entry.attr,
> >       &queue_discard_zeroes_data_entry.attr,
> > +     &queue_provision_max_entry.attr,
> >       &queue_write_same_max_entry.attr,
> >       &queue_write_zeroes_max_entry.attr,
> >       &queue_zone_append_max_entry.attr,
> > diff --git a/block/bounce.c b/block/bounce.c
> > index 7cfcb242f9a1..ab9d8723ae64 100644
> > --- a/block/bounce.c
> > +++ b/block/bounce.c
> > @@ -176,6 +176,7 @@ static struct bio *bounce_clone_bio(struct bio *bio_src)
> >       case REQ_OP_DISCARD:
> >       case REQ_OP_SECURE_ERASE:
> >       case REQ_OP_WRITE_ZEROES:
> > +     case REQ_OP_PROVISION:
> >               break;
> >       default:
> >               bio_for_each_segment(bv, bio_src, iter)
> > diff --git a/block/fops.c b/block/fops.c
> > index 4c70fdc546e7..be2e41f160bf 100644
> > --- a/block/fops.c
> > +++ b/block/fops.c
> > @@ -613,7 +613,8 @@ static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to)
> >
> >  #define      BLKDEV_FALLOC_FL_SUPPORTED                                      \
> >               (FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |           \
> > -              FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE)
> > +              FALLOC_FL_ZERO_RANGE | FALLOC_FL_NO_HIDE_STALE |       \
> > +              FALLOC_FL_UNSHARE_RANGE)
> >
> >  static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >                            loff_t len)
> > @@ -653,6 +654,13 @@ static long blkdev_fallocate(struct file *file, int mode, loff_t start,
> >        * de-allocate mode calls to fallocate().
> >        */
> >       switch (mode) {
> > +     case 0:
> > +     case FALLOC_FL_UNSHARE_RANGE:
> > +     case FALLOC_FL_KEEP_SIZE:
> > +     case FALLOC_FL_UNSHARE_RANGE | FALLOC_FL_KEEP_SIZE:
> > +             error = blkdev_issue_provision(bdev, start >> SECTOR_SHIFT,
> > +                                            len >> SECTOR_SHIFT, GFP_KERNEL);
> > +             break;
> >       case FALLOC_FL_ZERO_RANGE:
> >       case FALLOC_FL_ZERO_RANGE | FALLOC_FL_KEEP_SIZE:
> >               error = truncate_bdev_range(bdev, file->f_mode, start, end);
> > diff --git a/include/linux/bio.h b/include/linux/bio.h
> > index d766be7152e1..9820b3b039f2 100644
> > --- a/include/linux/bio.h
> > +++ b/include/linux/bio.h
> > @@ -57,7 +57,8 @@ static inline bool bio_has_data(struct bio *bio)
> >           bio->bi_iter.bi_size &&
> >           bio_op(bio) != REQ_OP_DISCARD &&
> >           bio_op(bio) != REQ_OP_SECURE_ERASE &&
> > -         bio_op(bio) != REQ_OP_WRITE_ZEROES)
> > +         bio_op(bio) != REQ_OP_WRITE_ZEROES &&
> > +         bio_op(bio) != REQ_OP_PROVISION)
> >               return true;
> >
> >       return false;
> > @@ -67,7 +68,8 @@ static inline bool bio_no_advance_iter(const struct bio *bio)
> >  {
> >       return bio_op(bio) == REQ_OP_DISCARD ||
> >              bio_op(bio) == REQ_OP_SECURE_ERASE ||
> > -            bio_op(bio) == REQ_OP_WRITE_ZEROES;
> > +            bio_op(bio) == REQ_OP_WRITE_ZEROES ||
> > +            bio_op(bio) == REQ_OP_PROVISION;
> >  }
> >
> >  static inline void *bio_data(struct bio *bio)
> > diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
> > index 99be590f952f..27bdf88f541c 100644
> > --- a/include/linux/blk_types.h
> > +++ b/include/linux/blk_types.h
> > @@ -385,7 +385,10 @@ enum req_op {
> >       REQ_OP_DRV_IN           = (__force blk_opf_t)34,
> >       REQ_OP_DRV_OUT          = (__force blk_opf_t)35,
> >
> > -     REQ_OP_LAST             = (__force blk_opf_t)36,
> > +     /* request device to provision block */
> > +     REQ_OP_PROVISION        = (__force blk_opf_t)37,
> > +
> > +     REQ_OP_LAST             = (__force blk_opf_t)38,
> >  };
> >
> >  enum req_flag_bits {
> > diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> > index 941304f17492..239e2f418b6e 100644
> > --- a/include/linux/blkdev.h
> > +++ b/include/linux/blkdev.h
> > @@ -303,6 +303,7 @@ struct queue_limits {
> >       unsigned int            discard_granularity;
> >       unsigned int            discard_alignment;
> >       unsigned int            zone_write_granularity;
> > +     unsigned int            max_provision_sectors;
> >
> >       unsigned short          max_segments;
> >       unsigned short          max_integrity_segments;
> > @@ -921,6 +922,8 @@ extern void blk_queue_max_discard_sectors(struct request_queue *q,
> >               unsigned int max_discard_sectors);
> >  extern void blk_queue_max_write_zeroes_sectors(struct request_queue *q,
> >               unsigned int max_write_same_sectors);
> > +extern void blk_queue_max_provision_sectors(struct request_queue *q,
> > +             unsigned int max_provision_sectors);
> >  extern void blk_queue_logical_block_size(struct request_queue *, unsigned int);
> >  extern void blk_queue_max_zone_append_sectors(struct request_queue *q,
> >               unsigned int max_zone_append_sectors);
> > @@ -1060,6 +1063,9 @@ int __blkdev_issue_discard(struct block_device *bdev, sector_t sector,
> >  int blkdev_issue_secure_erase(struct block_device *bdev, sector_t sector,
> >               sector_t nr_sects, gfp_t gfp);
> >
> > +extern int blkdev_issue_provision(struct block_device *bdev, sector_t sector,
> > +             sector_t nr_sects, gfp_t gfp_mask);
> > +
> >  #define BLKDEV_ZERO_NOUNMAP  (1 << 0)  /* do not free blocks */
> >  #define BLKDEV_ZERO_NOFALLBACK       (1 << 1)  /* don't write explicit zeroes */
> >
> > @@ -1139,6 +1145,11 @@ static inline unsigned short queue_max_discard_segments(const struct request_que
> >       return q->limits.max_discard_segments;
> >  }
> >
> > +static inline unsigned short queue_max_provision_sectors(const struct request_queue *q)
> > +{
> > +     return q->limits.max_provision_sectors;
> > +}
> > +
> >  static inline unsigned int queue_max_segment_size(const struct request_queue *q)
> >  {
> >       return q->limits.max_segment_size;
> > @@ -1281,6 +1292,11 @@ static inline bool bdev_nowait(struct block_device *bdev)
> >       return test_bit(QUEUE_FLAG_NOWAIT, &bdev_get_queue(bdev)->queue_flags);
> >  }
> >
> > +static inline unsigned int bdev_max_provision_sectors(struct block_device *bdev)
> > +{
> > +     return bdev_get_queue(bdev)->limits.max_provision_sectors;
> > +}
> > +
> >  static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev)
> >  {
> >       return blk_queue_zoned_model(bdev_get_queue(bdev));
> > --
> > 2.40.1.521.gf1e218fcd8-goog
> >

[dm-devel] [PATCH v6 3/5] dm: Add block provisioning support

[Sarthak Kukreti]

Add block provisioning support for device-mapper targets.
dm-crypt, dm-snap and dm-linear will, by default, passthrough
REQ_OP_PROVISION requests to the underlying device, if
supported.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |  4 +++-
 drivers/md/dm-linear.c        |  1 +
 drivers/md/dm-snap.c          |  7 +++++++
 drivers/md/dm-table.c         | 23 +++++++++++++++++++++++
 drivers/md/dm.c               |  6 ++++++
 include/linux/device-mapper.h | 17 +++++++++++++++++
 6 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8b47b913ee83..5a7c475ce6fc 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3336,6 +3336,8 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		cc->tag_pool_max_sectors <<= cc->sector_shift;
 	}
 
+	ti->num_provision_bios = 1;
+
 	ret = -ENOMEM;
 	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
@@ -3390,7 +3392,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index f4448d520ee9..74ee27ca551a 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9c49f53760d0..0dfda50ac4e0 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2004,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2419,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 119db5e01080..282c530b0685 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1854,6 +1854,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1987,6 +2007,9 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (!dm_table_supports_provision(t))
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3b694ba3a106..9b94121b8d38 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1609,6 +1609,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1641,6 +1642,11 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 		if (ti->max_write_zeroes_granularity)
 			max_granularity = limits->max_write_zeroes_sectors;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		if (ti->max_provision_granularity)
+			max_granularity = limits->max_provision_sectors;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a52d2b9a6846..9981378457d2 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if this target requires that discards be split on
 	 * 'max_discard_sectors' boundaries.
@@ -376,6 +387,12 @@ struct dm_target {
 	 */
 	bool max_write_zeroes_granularity:1;
 
+	/*
+	 * Set if this target requires that provisions be split on
+	 * 'max_provision_sectors' boundaries.
+	 */
+	bool max_provision_granularity:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.1.521.gf1e218fcd8-goog

--
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dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

[PATCH v6 3/5] dm: Add block provisioning support

[Sarthak Kukreti]

Add block provisioning support for device-mapper targets.
dm-crypt, dm-snap and dm-linear will, by default, passthrough
REQ_OP_PROVISION requests to the underlying device, if
supported.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-crypt.c         |  4 +++-
 drivers/md/dm-linear.c        |  1 +
 drivers/md/dm-snap.c          |  7 +++++++
 drivers/md/dm-table.c         | 23 +++++++++++++++++++++++
 drivers/md/dm.c               |  6 ++++++
 include/linux/device-mapper.h | 17 +++++++++++++++++
 6 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 8b47b913ee83..5a7c475ce6fc 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3336,6 +3336,8 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		cc->tag_pool_max_sectors <<= cc->sector_shift;
 	}
 
+	ti->num_provision_bios = 1;
+
 	ret = -ENOMEM;
 	cc->io_queue = alloc_workqueue("kcryptd_io/%s", WQ_MEM_RECLAIM, 1, devname);
 	if (!cc->io_queue) {
@@ -3390,7 +3392,7 @@ static int crypt_map(struct dm_target *ti, struct bio *bio)
 	 * - for REQ_OP_DISCARD caller must use flush if IO ordering matters
 	 */
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH ||
-	    bio_op(bio) == REQ_OP_DISCARD)) {
+	    bio_op(bio) == REQ_OP_DISCARD || bio_op(bio) == REQ_OP_PROVISION)) {
 		bio_set_dev(bio, cc->dev->bdev);
 		if (bio_sectors(bio))
 			bio->bi_iter.bi_sector = cc->start +
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index f4448d520ee9..74ee27ca551a 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -62,6 +62,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_discard_bios = 1;
 	ti->num_secure_erase_bios = 1;
 	ti->num_write_zeroes_bios = 1;
+	ti->num_provision_bios = 1;
 	ti->private = lc;
 	return 0;
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 9c49f53760d0..0dfda50ac4e0 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1358,6 +1358,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	if (s->discard_zeroes_cow)
 		ti->num_discard_bios = (s->discard_passdown_origin ? 2 : 1);
 	ti->per_io_data_size = sizeof(struct dm_snap_tracked_chunk);
+	ti->num_provision_bios = 1;
 
 	/* Add snapshot to the list of snapshots for this origin */
 	/* Exceptions aren't triggered till snapshot_resume() is called */
@@ -2003,6 +2004,11 @@ static int snapshot_map(struct dm_target *ti, struct bio *bio)
 	/* If the block is already remapped - use that, else remap it */
 	e = dm_lookup_exception(&s->complete, chunk);
 	if (e) {
+		if (unlikely(bio_op(bio) == REQ_OP_PROVISION)) {
+			bio_endio(bio);
+			r = DM_MAPIO_SUBMITTED;
+			goto out_unlock;
+		}
 		remap_exception(s, e, bio, chunk);
 		if (unlikely(bio_op(bio) == REQ_OP_DISCARD) &&
 		    io_overlaps_chunk(s, bio)) {
@@ -2413,6 +2419,7 @@ static void snapshot_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		/* All discards are split on chunk_size boundary */
 		limits->discard_granularity = snap->store->chunk_size;
 		limits->max_discard_sectors = snap->store->chunk_size;
+		limits->max_provision_sectors = snap->store->chunk_size;
 
 		up_read(&_origins_lock);
 	}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 119db5e01080..282c530b0685 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1854,6 +1854,26 @@ static bool dm_table_supports_write_zeroes(struct dm_table *t)
 	return true;
 }
 
+static int device_provision_capable(struct dm_target *ti, struct dm_dev *dev,
+				    sector_t start, sector_t len, void *data)
+{
+	return bdev_max_provision_sectors(dev->bdev);
+}
+
+static bool dm_table_supports_provision(struct dm_table *t)
+{
+	for (unsigned int i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->provision_supported ||
+		    (ti->type->iterate_devices &&
+		    ti->type->iterate_devices(ti, device_provision_capable, NULL)))
+			return true;
+	}
+
+	return false;
+}
+
 static int device_not_nowait_capable(struct dm_target *ti, struct dm_dev *dev,
 				     sector_t start, sector_t len, void *data)
 {
@@ -1987,6 +2007,9 @@ int dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	if (!dm_table_supports_write_zeroes(t))
 		q->limits.max_write_zeroes_sectors = 0;
 
+	if (!dm_table_supports_provision(t))
+		q->limits.max_provision_sectors = 0;
+
 	dm_table_verify_integrity(t);
 
 	/*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3b694ba3a106..9b94121b8d38 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1609,6 +1609,7 @@ static bool is_abnormal_io(struct bio *bio)
 		case REQ_OP_DISCARD:
 		case REQ_OP_SECURE_ERASE:
 		case REQ_OP_WRITE_ZEROES:
+		case REQ_OP_PROVISION:
 			return true;
 		default:
 			break;
@@ -1641,6 +1642,11 @@ static blk_status_t __process_abnormal_io(struct clone_info *ci,
 		if (ti->max_write_zeroes_granularity)
 			max_granularity = limits->max_write_zeroes_sectors;
 		break;
+	case REQ_OP_PROVISION:
+		num_bios = ti->num_provision_bios;
+		if (ti->max_provision_granularity)
+			max_granularity = limits->max_provision_sectors;
+		break;
 	default:
 		break;
 	}
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a52d2b9a6846..9981378457d2 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -334,6 +334,12 @@ struct dm_target {
 	 */
 	unsigned int num_write_zeroes_bios;
 
+	/*
+	 * The number of PROVISION bios that will be submitted to the target.
+	 * The bio number can be accessed with dm_bio_get_target_bio_nr.
+	 */
+	unsigned int num_provision_bios;
+
 	/*
 	 * The minimum number of extra bytes allocated in each io for the
 	 * target to use.
@@ -358,6 +364,11 @@ struct dm_target {
 	 */
 	bool discards_supported:1;
 
+	/* Set if this target needs to receive provision requests regardless of
+	 * whether or not its underlying devices have support.
+	 */
+	bool provision_supported:1;
+
 	/*
 	 * Set if this target requires that discards be split on
 	 * 'max_discard_sectors' boundaries.
@@ -376,6 +387,12 @@ struct dm_target {
 	 */
 	bool max_write_zeroes_granularity:1;
 
+	/*
+	 * Set if this target requires that provisions be split on
+	 * 'max_provision_sectors' boundaries.
+	 */
+	bool max_provision_granularity:1;
+
 	/*
 	 * Set if we need to limit the number of in-flight bios when swapping.
 	 */
-- 
2.40.1.521.gf1e218fcd8-goog

Re: [dm-devel] [PATCH v6 3/5] dm: Add block provisioning support

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Add block provisioning support for device-mapper targets.
> dm-crypt, dm-snap and dm-linear will, by default, passthrough
> REQ_OP_PROVISION requests to the underlying device, if
> supported.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

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Re: [PATCH v6 3/5] dm: Add block provisioning support

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> Add block provisioning support for device-mapper targets.
> dm-crypt, dm-snap and dm-linear will, by default, passthrough
> REQ_OP_PROVISION requests to the underlying device, if
> supported.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>

Reviewed-by: Mike Snitzer <snitzer@kernel.org>

[dm-devel] [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block. Additionally, if 'skip_block_zeroing'
is not set, dm-thin will opt to zero out the entire range as a part
of provisioning.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 66 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b13c949bd72..3f94f53ac956 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -274,6 +274,7 @@ struct pool {
 
 	process_bio_fn process_bio;
 	process_bio_fn process_discard;
+	process_bio_fn process_provision;
 
 	process_cell_fn process_cell;
 	process_cell_fn process_discard_cell;
@@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
-		io_overlaps_block(pool, bio);
+	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
+	       bio_op(bio) != REQ_OP_PROVISION;
 }
 
 static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
@@ -1953,6 +1955,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
 	}
 }
 
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	dm_block_t block = get_bio_block(tc, bio);
+	struct dm_bio_prison_cell *cell;
+	struct dm_cell_key key;
+	struct dm_thin_lookup_result lookup_result;
+
+	/*
+	 * If cell is already occupied, then the block is already
+	 * being provisioned so we have nothing further to do here.
+	 */
+	build_virtual_key(tc->td, block, &key);
+	if (bio_detain(pool, &key, bio, &cell))
+		return;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
+	switch (r) {
+	case 0:
+		if (lookup_result.shared) {
+			process_shared_bio(tc, bio, block, &lookup_result, cell);
+		} else {
+			bio_endio(bio);
+			cell_defer_no_holder(tc, cell);
+		}
+		break;
+	case -ENODATA:
+		provision_block(tc, bio, block, cell);
+		break;
+
+	default:
+		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
+			    __func__, r);
+		cell_defer_no_holder(tc, cell);
+		bio_io_error(bio);
+		break;
+	}
+}
+
 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 {
 	int r;
@@ -2228,6 +2275,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			pool->process_provision(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2579,6 +2628,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_fail;
 		pool->process_discard_cell = process_cell_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2592,6 +2642,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_bio_success;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_cell_success;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2612,6 +2663,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->out_of_data_space = true;
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2628,6 +2680,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_provision_bio;
 		pool->process_cell = process_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2749,7 +2802,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3396,6 +3450,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 	 * The pool uses the same discard limits as the underlying data
 	 * device.  DM core has already set this up.
 	 */
+
+	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type pool_target = {
@@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->max_discard_granularity = true;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
-- 
2.40.1.521.gf1e218fcd8-goog

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[PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

dm-thinpool uses the provision request to provision
blocks for a dm-thin device. dm-thinpool currently does not
pass through REQ_OP_PROVISION to underlying devices.

For shared blocks, provision requests will break sharing and copy the
contents of the entire block. Additionally, if 'skip_block_zeroing'
is not set, dm-thin will opt to zero out the entire range as a part
of provisioning.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 66 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 2b13c949bd72..3f94f53ac956 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -274,6 +274,7 @@ struct pool {
 
 	process_bio_fn process_bio;
 	process_bio_fn process_discard;
+	process_bio_fn process_provision;
 
 	process_cell_fn process_cell;
 	process_cell_fn process_discard_cell;
@@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(&cell->bios))) {
-		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
+		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+		    bio_op(bio) == REQ_OP_PROVISION)
 			bio_list_add(&info->defer_bios, bio);
 		else {
 			inc_all_io_entry(info->tc->pool, bio);
@@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
 
 static int io_overwrites_block(struct pool *pool, struct bio *bio)
 {
-	return (bio_data_dir(bio) == WRITE) &&
-		io_overlaps_block(pool, bio);
+	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
+	       bio_op(bio) != REQ_OP_PROVISION;
 }
 
 static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
@@ -1953,6 +1955,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
 	}
 }
 
+static void process_provision_bio(struct thin_c *tc, struct bio *bio)
+{
+	int r;
+	struct pool *pool = tc->pool;
+	dm_block_t block = get_bio_block(tc, bio);
+	struct dm_bio_prison_cell *cell;
+	struct dm_cell_key key;
+	struct dm_thin_lookup_result lookup_result;
+
+	/*
+	 * If cell is already occupied, then the block is already
+	 * being provisioned so we have nothing further to do here.
+	 */
+	build_virtual_key(tc->td, block, &key);
+	if (bio_detain(pool, &key, bio, &cell))
+		return;
+
+	if (tc->requeue_mode) {
+		cell_requeue(pool, cell);
+		return;
+	}
+
+	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
+	switch (r) {
+	case 0:
+		if (lookup_result.shared) {
+			process_shared_bio(tc, bio, block, &lookup_result, cell);
+		} else {
+			bio_endio(bio);
+			cell_defer_no_holder(tc, cell);
+		}
+		break;
+	case -ENODATA:
+		provision_block(tc, bio, block, cell);
+		break;
+
+	default:
+		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
+			    __func__, r);
+		cell_defer_no_holder(tc, cell);
+		bio_io_error(bio);
+		break;
+	}
+}
+
 static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
 {
 	int r;
@@ -2228,6 +2275,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 
 		if (bio_op(bio) == REQ_OP_DISCARD)
 			pool->process_discard(tc, bio);
+		else if (bio_op(bio) == REQ_OP_PROVISION)
+			pool->process_provision(tc, bio);
 		else
 			pool->process_bio(tc, bio);
 
@@ -2579,6 +2628,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_fail;
 		pool->process_discard = process_bio_fail;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_fail;
 		pool->process_discard_cell = process_cell_fail;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2592,6 +2642,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_only(pool->pmd);
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_bio_success;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_discard_cell = process_cell_success;
 		pool->process_prepared_mapping = process_prepared_mapping_fail;
@@ -2612,6 +2663,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		pool->out_of_data_space = true;
 		pool->process_bio = process_bio_read_only;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_bio_fail;
 		pool->process_cell = process_cell_read_only;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2628,6 +2680,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 		dm_pool_metadata_read_write(pool->pmd);
 		pool->process_bio = process_bio;
 		pool->process_discard = process_discard_bio;
+		pool->process_provision = process_provision_bio;
 		pool->process_cell = process_cell;
 		pool->process_prepared_mapping = process_prepared_mapping;
 		set_discard_callbacks(pool);
@@ -2749,7 +2802,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
-	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
+	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
+	    bio_op(bio) == REQ_OP_PROVISION) {
 		thin_defer_bio_with_throttle(tc, bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -3396,6 +3450,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	pt->adjusted_pf = pt->requested_pf = pf;
 	ti->num_flush_bios = 1;
 	ti->limit_swap_bios = true;
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	/*
 	 * Only need to enable discards if the pool should pass
@@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 	 * The pool uses the same discard limits as the underlying data
 	 * device.  DM core has already set this up.
 	 */
+
+	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type pool_target = {
@@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		ti->max_discard_granularity = true;
 	}
 
+	ti->num_provision_bios = 1;
+	ti->provision_supported = true;
+
 	mutex_unlock(&dm_thin_pool_table.mutex);
 
 	spin_lock_irq(&tc->pool->lock);
-- 
2.40.1.521.gf1e218fcd8-goog

Re: [dm-devel] [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block. Additionally, if 'skip_block_zeroing'
> is not set, dm-thin will opt to zero out the entire range as a part
> of provisioning.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 66 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 2b13c949bd72..3f94f53ac956 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
> @@ -274,6 +274,7 @@ struct pool {
>  
>  	process_bio_fn process_bio;
>  	process_bio_fn process_discard;
> +	process_bio_fn process_provision;
>  
>  	process_cell_fn process_cell;
>  	process_cell_fn process_discard_cell;
> @@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
>  	struct bio *bio;
>  
>  	while ((bio = bio_list_pop(&cell->bios))) {
> -		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> +		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +		    bio_op(bio) == REQ_OP_PROVISION)
>  			bio_list_add(&info->defer_bios, bio);
>  		else {
>  			inc_all_io_entry(info->tc->pool, bio);
> @@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
>  
>  static int io_overwrites_block(struct pool *pool, struct bio *bio)
>  {
> -	return (bio_data_dir(bio) == WRITE) &&
> -		io_overlaps_block(pool, bio);
> +	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
> +	       bio_op(bio) != REQ_OP_PROVISION;
>  }
>  
>  static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
> @@ -1953,6 +1955,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
>  	}
>  }
>  
> +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> +{
> +	int r;
> +	struct pool *pool = tc->pool;
> +	dm_block_t block = get_bio_block(tc, bio);
> +	struct dm_bio_prison_cell *cell;
> +	struct dm_cell_key key;
> +	struct dm_thin_lookup_result lookup_result;
> +
> +	/*
> +	 * If cell is already occupied, then the block is already
> +	 * being provisioned so we have nothing further to do here.
> +	 */
> +	build_virtual_key(tc->td, block, &key);
> +	if (bio_detain(pool, &key, bio, &cell))
> +		return;
> +
> +	if (tc->requeue_mode) {
> +		cell_requeue(pool, cell);
> +		return;
> +	}
> +
> +	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
> +	switch (r) {
> +	case 0:
> +		if (lookup_result.shared) {
> +			process_shared_bio(tc, bio, block, &lookup_result, cell);
> +		} else {
> +			bio_endio(bio);
> +			cell_defer_no_holder(tc, cell);
> +		}
> +		break;
> +	case -ENODATA:
> +		provision_block(tc, bio, block, cell);
> +		break;
> +
> +	default:
> +		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
> +			    __func__, r);
> +		cell_defer_no_holder(tc, cell);
> +		bio_io_error(bio);
> +		break;
> +	}
> +}
> +
>  static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
>  {
>  	int r;
> @@ -2228,6 +2275,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
>  
>  		if (bio_op(bio) == REQ_OP_DISCARD)
>  			pool->process_discard(tc, bio);
> +		else if (bio_op(bio) == REQ_OP_PROVISION)
> +			pool->process_provision(tc, bio);
>  		else
>  			pool->process_bio(tc, bio);
>  
> @@ -2579,6 +2628,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		dm_pool_metadata_read_only(pool->pmd);
>  		pool->process_bio = process_bio_fail;
>  		pool->process_discard = process_bio_fail;
> +		pool->process_provision = process_bio_fail;
>  		pool->process_cell = process_cell_fail;
>  		pool->process_discard_cell = process_cell_fail;
>  		pool->process_prepared_mapping = process_prepared_mapping_fail;
> @@ -2592,6 +2642,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		dm_pool_metadata_read_only(pool->pmd);
>  		pool->process_bio = process_bio_read_only;
>  		pool->process_discard = process_bio_success;
> +		pool->process_provision = process_bio_fail;
>  		pool->process_cell = process_cell_read_only;
>  		pool->process_discard_cell = process_cell_success;
>  		pool->process_prepared_mapping = process_prepared_mapping_fail;
> @@ -2612,6 +2663,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		pool->out_of_data_space = true;
>  		pool->process_bio = process_bio_read_only;
>  		pool->process_discard = process_discard_bio;
> +		pool->process_provision = process_bio_fail;
>  		pool->process_cell = process_cell_read_only;
>  		pool->process_prepared_mapping = process_prepared_mapping;
>  		set_discard_callbacks(pool);
> @@ -2628,6 +2680,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		dm_pool_metadata_read_write(pool->pmd);
>  		pool->process_bio = process_bio;
>  		pool->process_discard = process_discard_bio;
> +		pool->process_provision = process_provision_bio;
>  		pool->process_cell = process_cell;
>  		pool->process_prepared_mapping = process_prepared_mapping;
>  		set_discard_callbacks(pool);
> @@ -2749,7 +2802,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
>  		return DM_MAPIO_SUBMITTED;
>  	}
>  
> -	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> +	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +	    bio_op(bio) == REQ_OP_PROVISION) {
>  		thin_defer_bio_with_throttle(tc, bio);
>  		return DM_MAPIO_SUBMITTED;
>  	}
> @@ -3396,6 +3450,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	pt->adjusted_pf = pt->requested_pf = pf;
>  	ti->num_flush_bios = 1;
>  	ti->limit_swap_bios = true;
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
> +	ti->max_provision_granularity = true;
>  
>  	/*
>  	 * Only need to enable discards if the pool should pass
> @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  	 * The pool uses the same discard limits as the underlying data
>  	 * device.  DM core has already set this up.
>  	 */
> +
> +	limits->max_provision_sectors = pool->sectors_per_block;
>  }
>  
>  static struct target_type pool_target = {
> @@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  		ti->max_discard_granularity = true;
>  	}
>  
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
> +

We need this in thin_ctr: ti->max_provision_granularity = true;

More needed in the thin target than thin-pool; otherwise provision bio
issued to thin devices won't be split appropriately.  But I do think
its fine to set in both thin_ctr and pool_ctr.

Otherwise, looks good.

Thanks,
Mike

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Re: [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block. Additionally, if 'skip_block_zeroing'
> is not set, dm-thin will opt to zero out the entire range as a part
> of provisioning.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 66 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 2b13c949bd72..3f94f53ac956 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
> @@ -274,6 +274,7 @@ struct pool {
>  
>  	process_bio_fn process_bio;
>  	process_bio_fn process_discard;
> +	process_bio_fn process_provision;
>  
>  	process_cell_fn process_cell;
>  	process_cell_fn process_discard_cell;
> @@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
>  	struct bio *bio;
>  
>  	while ((bio = bio_list_pop(&cell->bios))) {
> -		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> +		if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +		    bio_op(bio) == REQ_OP_PROVISION)
>  			bio_list_add(&info->defer_bios, bio);
>  		else {
>  			inc_all_io_entry(info->tc->pool, bio);
> @@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
>  
>  static int io_overwrites_block(struct pool *pool, struct bio *bio)
>  {
> -	return (bio_data_dir(bio) == WRITE) &&
> -		io_overlaps_block(pool, bio);
> +	return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
> +	       bio_op(bio) != REQ_OP_PROVISION;
>  }
>  
>  static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
> @@ -1953,6 +1955,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
>  	}
>  }
>  
> +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> +{
> +	int r;
> +	struct pool *pool = tc->pool;
> +	dm_block_t block = get_bio_block(tc, bio);
> +	struct dm_bio_prison_cell *cell;
> +	struct dm_cell_key key;
> +	struct dm_thin_lookup_result lookup_result;
> +
> +	/*
> +	 * If cell is already occupied, then the block is already
> +	 * being provisioned so we have nothing further to do here.
> +	 */
> +	build_virtual_key(tc->td, block, &key);
> +	if (bio_detain(pool, &key, bio, &cell))
> +		return;
> +
> +	if (tc->requeue_mode) {
> +		cell_requeue(pool, cell);
> +		return;
> +	}
> +
> +	r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
> +	switch (r) {
> +	case 0:
> +		if (lookup_result.shared) {
> +			process_shared_bio(tc, bio, block, &lookup_result, cell);
> +		} else {
> +			bio_endio(bio);
> +			cell_defer_no_holder(tc, cell);
> +		}
> +		break;
> +	case -ENODATA:
> +		provision_block(tc, bio, block, cell);
> +		break;
> +
> +	default:
> +		DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
> +			    __func__, r);
> +		cell_defer_no_holder(tc, cell);
> +		bio_io_error(bio);
> +		break;
> +	}
> +}
> +
>  static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
>  {
>  	int r;
> @@ -2228,6 +2275,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
>  
>  		if (bio_op(bio) == REQ_OP_DISCARD)
>  			pool->process_discard(tc, bio);
> +		else if (bio_op(bio) == REQ_OP_PROVISION)
> +			pool->process_provision(tc, bio);
>  		else
>  			pool->process_bio(tc, bio);
>  
> @@ -2579,6 +2628,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		dm_pool_metadata_read_only(pool->pmd);
>  		pool->process_bio = process_bio_fail;
>  		pool->process_discard = process_bio_fail;
> +		pool->process_provision = process_bio_fail;
>  		pool->process_cell = process_cell_fail;
>  		pool->process_discard_cell = process_cell_fail;
>  		pool->process_prepared_mapping = process_prepared_mapping_fail;
> @@ -2592,6 +2642,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		dm_pool_metadata_read_only(pool->pmd);
>  		pool->process_bio = process_bio_read_only;
>  		pool->process_discard = process_bio_success;
> +		pool->process_provision = process_bio_fail;
>  		pool->process_cell = process_cell_read_only;
>  		pool->process_discard_cell = process_cell_success;
>  		pool->process_prepared_mapping = process_prepared_mapping_fail;
> @@ -2612,6 +2663,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		pool->out_of_data_space = true;
>  		pool->process_bio = process_bio_read_only;
>  		pool->process_discard = process_discard_bio;
> +		pool->process_provision = process_bio_fail;
>  		pool->process_cell = process_cell_read_only;
>  		pool->process_prepared_mapping = process_prepared_mapping;
>  		set_discard_callbacks(pool);
> @@ -2628,6 +2680,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
>  		dm_pool_metadata_read_write(pool->pmd);
>  		pool->process_bio = process_bio;
>  		pool->process_discard = process_discard_bio;
> +		pool->process_provision = process_provision_bio;
>  		pool->process_cell = process_cell;
>  		pool->process_prepared_mapping = process_prepared_mapping;
>  		set_discard_callbacks(pool);
> @@ -2749,7 +2802,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
>  		return DM_MAPIO_SUBMITTED;
>  	}
>  
> -	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> +	if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> +	    bio_op(bio) == REQ_OP_PROVISION) {
>  		thin_defer_bio_with_throttle(tc, bio);
>  		return DM_MAPIO_SUBMITTED;
>  	}
> @@ -3396,6 +3450,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  	pt->adjusted_pf = pt->requested_pf = pf;
>  	ti->num_flush_bios = 1;
>  	ti->limit_swap_bios = true;
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
> +	ti->max_provision_granularity = true;
>  
>  	/*
>  	 * Only need to enable discards if the pool should pass
> @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  	 * The pool uses the same discard limits as the underlying data
>  	 * device.  DM core has already set this up.
>  	 */
> +
> +	limits->max_provision_sectors = pool->sectors_per_block;
>  }
>  
>  static struct target_type pool_target = {
> @@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>  		ti->max_discard_granularity = true;
>  	}
>  
> +	ti->num_provision_bios = 1;
> +	ti->provision_supported = true;
> +

We need this in thin_ctr: ti->max_provision_granularity = true;

More needed in the thin target than thin-pool; otherwise provision bio
issued to thin devices won't be split appropriately.  But I do think
its fine to set in both thin_ctr and pool_ctr.

Otherwise, looks good.

Thanks,
Mike

Re: [dm-devel] [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

On Tue, May 9, 2023 at 9:58 AM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Sat, May 06 2023 at  2:29P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > is not set, dm-thin will opt to zero out the entire range as a part
> > of provisioning.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
> >  1 file changed, 66 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 2b13c949bd72..3f94f53ac956 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
> > @@ -274,6 +274,7 @@ struct pool {
> >
> >       process_bio_fn process_bio;
> >       process_bio_fn process_discard;
> > +     process_bio_fn process_provision;
> >
> >       process_cell_fn process_cell;
> >       process_cell_fn process_discard_cell;
> > @@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
> >       struct bio *bio;
> >
> >       while ((bio = bio_list_pop(&cell->bios))) {
> > -             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> > +             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +                 bio_op(bio) == REQ_OP_PROVISION)
> >                       bio_list_add(&info->defer_bios, bio);
> >               else {
> >                       inc_all_io_entry(info->tc->pool, bio);
> > @@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
> >
> >  static int io_overwrites_block(struct pool *pool, struct bio *bio)
> >  {
> > -     return (bio_data_dir(bio) == WRITE) &&
> > -             io_overlaps_block(pool, bio);
> > +     return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
> > +            bio_op(bio) != REQ_OP_PROVISION;
> >  }
> >
> >  static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
> > @@ -1953,6 +1955,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
> >       }
> >  }
> >
> > +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> > +{
> > +     int r;
> > +     struct pool *pool = tc->pool;
> > +     dm_block_t block = get_bio_block(tc, bio);
> > +     struct dm_bio_prison_cell *cell;
> > +     struct dm_cell_key key;
> > +     struct dm_thin_lookup_result lookup_result;
> > +
> > +     /*
> > +      * If cell is already occupied, then the block is already
> > +      * being provisioned so we have nothing further to do here.
> > +      */
> > +     build_virtual_key(tc->td, block, &key);
> > +     if (bio_detain(pool, &key, bio, &cell))
> > +             return;
> > +
> > +     if (tc->requeue_mode) {
> > +             cell_requeue(pool, cell);
> > +             return;
> > +     }
> > +
> > +     r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
> > +     switch (r) {
> > +     case 0:
> > +             if (lookup_result.shared) {
> > +                     process_shared_bio(tc, bio, block, &lookup_result, cell);
> > +             } else {
> > +                     bio_endio(bio);
> > +                     cell_defer_no_holder(tc, cell);
> > +             }
> > +             break;
> > +     case -ENODATA:
> > +             provision_block(tc, bio, block, cell);
> > +             break;
> > +
> > +     default:
> > +             DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
> > +                         __func__, r);
> > +             cell_defer_no_holder(tc, cell);
> > +             bio_io_error(bio);
> > +             break;
> > +     }
> > +}
> > +
> >  static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> >  {
> >       int r;
> > @@ -2228,6 +2275,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
> >
> >               if (bio_op(bio) == REQ_OP_DISCARD)
> >                       pool->process_discard(tc, bio);
> > +             else if (bio_op(bio) == REQ_OP_PROVISION)
> > +                     pool->process_provision(tc, bio);
> >               else
> >                       pool->process_bio(tc, bio);
> >
> > @@ -2579,6 +2628,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               dm_pool_metadata_read_only(pool->pmd);
> >               pool->process_bio = process_bio_fail;
> >               pool->process_discard = process_bio_fail;
> > +             pool->process_provision = process_bio_fail;
> >               pool->process_cell = process_cell_fail;
> >               pool->process_discard_cell = process_cell_fail;
> >               pool->process_prepared_mapping = process_prepared_mapping_fail;
> > @@ -2592,6 +2642,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               dm_pool_metadata_read_only(pool->pmd);
> >               pool->process_bio = process_bio_read_only;
> >               pool->process_discard = process_bio_success;
> > +             pool->process_provision = process_bio_fail;
> >               pool->process_cell = process_cell_read_only;
> >               pool->process_discard_cell = process_cell_success;
> >               pool->process_prepared_mapping = process_prepared_mapping_fail;
> > @@ -2612,6 +2663,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               pool->out_of_data_space = true;
> >               pool->process_bio = process_bio_read_only;
> >               pool->process_discard = process_discard_bio;
> > +             pool->process_provision = process_bio_fail;
> >               pool->process_cell = process_cell_read_only;
> >               pool->process_prepared_mapping = process_prepared_mapping;
> >               set_discard_callbacks(pool);
> > @@ -2628,6 +2680,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               dm_pool_metadata_read_write(pool->pmd);
> >               pool->process_bio = process_bio;
> >               pool->process_discard = process_discard_bio;
> > +             pool->process_provision = process_provision_bio;
> >               pool->process_cell = process_cell;
> >               pool->process_prepared_mapping = process_prepared_mapping;
> >               set_discard_callbacks(pool);
> > @@ -2749,7 +2802,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
> >               return DM_MAPIO_SUBMITTED;
> >       }
> >
> > -     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> > +     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +         bio_op(bio) == REQ_OP_PROVISION) {
> >               thin_defer_bio_with_throttle(tc, bio);
> >               return DM_MAPIO_SUBMITTED;
> >       }
> > @@ -3396,6 +3450,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >       pt->adjusted_pf = pt->requested_pf = pf;
> >       ti->num_flush_bios = 1;
> >       ti->limit_swap_bios = true;
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> > +     ti->max_provision_granularity = true;
> >
> >       /*
> >        * Only need to enable discards if the pool should pass
> > @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >        * The pool uses the same discard limits as the underlying data
> >        * device.  DM core has already set this up.
> >        */
> > +
> > +     limits->max_provision_sectors = pool->sectors_per_block;
> >  }
> >
> >  static struct target_type pool_target = {
> > @@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >               ti->max_discard_granularity = true;
> >       }
> >
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> > +
>
> We need this in thin_ctr: ti->max_provision_granularity = true;
>
> More needed in the thin target than thin-pool; otherwise provision bio
> issued to thin devices won't be split appropriately.  But I do think
> its fine to set in both thin_ctr and pool_ctr.
>
> Otherwise, looks good.
>
Thanks! I'll add it to the next iteration (in addition to any other
feedback that's added to v6).

Given that this series covers multiple subsystems, would there be a
preferred way of queueing this for merge?

Best
Sarthak

> Thanks,
> Mike

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Re: [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

On Tue, May 9, 2023 at 9:58 AM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Sat, May 06 2023 at  2:29P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > is not set, dm-thin will opt to zero out the entire range as a part
> > of provisioning.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
> >  1 file changed, 66 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 2b13c949bd72..3f94f53ac956 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
> > @@ -274,6 +274,7 @@ struct pool {
> >
> >       process_bio_fn process_bio;
> >       process_bio_fn process_discard;
> > +     process_bio_fn process_provision;
> >
> >       process_cell_fn process_cell;
> >       process_cell_fn process_discard_cell;
> > @@ -913,7 +914,8 @@ static void __inc_remap_and_issue_cell(void *context,
> >       struct bio *bio;
> >
> >       while ((bio = bio_list_pop(&cell->bios))) {
> > -             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD)
> > +             if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +                 bio_op(bio) == REQ_OP_PROVISION)
> >                       bio_list_add(&info->defer_bios, bio);
> >               else {
> >                       inc_all_io_entry(info->tc->pool, bio);
> > @@ -1245,8 +1247,8 @@ static int io_overlaps_block(struct pool *pool, struct bio *bio)
> >
> >  static int io_overwrites_block(struct pool *pool, struct bio *bio)
> >  {
> > -     return (bio_data_dir(bio) == WRITE) &&
> > -             io_overlaps_block(pool, bio);
> > +     return (bio_data_dir(bio) == WRITE) && io_overlaps_block(pool, bio) &&
> > +            bio_op(bio) != REQ_OP_PROVISION;
> >  }
> >
> >  static void save_and_set_endio(struct bio *bio, bio_end_io_t **save,
> > @@ -1953,6 +1955,51 @@ static void provision_block(struct thin_c *tc, struct bio *bio, dm_block_t block
> >       }
> >  }
> >
> > +static void process_provision_bio(struct thin_c *tc, struct bio *bio)
> > +{
> > +     int r;
> > +     struct pool *pool = tc->pool;
> > +     dm_block_t block = get_bio_block(tc, bio);
> > +     struct dm_bio_prison_cell *cell;
> > +     struct dm_cell_key key;
> > +     struct dm_thin_lookup_result lookup_result;
> > +
> > +     /*
> > +      * If cell is already occupied, then the block is already
> > +      * being provisioned so we have nothing further to do here.
> > +      */
> > +     build_virtual_key(tc->td, block, &key);
> > +     if (bio_detain(pool, &key, bio, &cell))
> > +             return;
> > +
> > +     if (tc->requeue_mode) {
> > +             cell_requeue(pool, cell);
> > +             return;
> > +     }
> > +
> > +     r = dm_thin_find_block(tc->td, block, 1, &lookup_result);
> > +     switch (r) {
> > +     case 0:
> > +             if (lookup_result.shared) {
> > +                     process_shared_bio(tc, bio, block, &lookup_result, cell);
> > +             } else {
> > +                     bio_endio(bio);
> > +                     cell_defer_no_holder(tc, cell);
> > +             }
> > +             break;
> > +     case -ENODATA:
> > +             provision_block(tc, bio, block, cell);
> > +             break;
> > +
> > +     default:
> > +             DMERR_LIMIT("%s: dm_thin_find_block() failed: error = %d",
> > +                         __func__, r);
> > +             cell_defer_no_holder(tc, cell);
> > +             bio_io_error(bio);
> > +             break;
> > +     }
> > +}
> > +
> >  static void process_cell(struct thin_c *tc, struct dm_bio_prison_cell *cell)
> >  {
> >       int r;
> > @@ -2228,6 +2275,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
> >
> >               if (bio_op(bio) == REQ_OP_DISCARD)
> >                       pool->process_discard(tc, bio);
> > +             else if (bio_op(bio) == REQ_OP_PROVISION)
> > +                     pool->process_provision(tc, bio);
> >               else
> >                       pool->process_bio(tc, bio);
> >
> > @@ -2579,6 +2628,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               dm_pool_metadata_read_only(pool->pmd);
> >               pool->process_bio = process_bio_fail;
> >               pool->process_discard = process_bio_fail;
> > +             pool->process_provision = process_bio_fail;
> >               pool->process_cell = process_cell_fail;
> >               pool->process_discard_cell = process_cell_fail;
> >               pool->process_prepared_mapping = process_prepared_mapping_fail;
> > @@ -2592,6 +2642,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               dm_pool_metadata_read_only(pool->pmd);
> >               pool->process_bio = process_bio_read_only;
> >               pool->process_discard = process_bio_success;
> > +             pool->process_provision = process_bio_fail;
> >               pool->process_cell = process_cell_read_only;
> >               pool->process_discard_cell = process_cell_success;
> >               pool->process_prepared_mapping = process_prepared_mapping_fail;
> > @@ -2612,6 +2663,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               pool->out_of_data_space = true;
> >               pool->process_bio = process_bio_read_only;
> >               pool->process_discard = process_discard_bio;
> > +             pool->process_provision = process_bio_fail;
> >               pool->process_cell = process_cell_read_only;
> >               pool->process_prepared_mapping = process_prepared_mapping;
> >               set_discard_callbacks(pool);
> > @@ -2628,6 +2680,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
> >               dm_pool_metadata_read_write(pool->pmd);
> >               pool->process_bio = process_bio;
> >               pool->process_discard = process_discard_bio;
> > +             pool->process_provision = process_provision_bio;
> >               pool->process_cell = process_cell;
> >               pool->process_prepared_mapping = process_prepared_mapping;
> >               set_discard_callbacks(pool);
> > @@ -2749,7 +2802,8 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
> >               return DM_MAPIO_SUBMITTED;
> >       }
> >
> > -     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD) {
> > +     if (op_is_flush(bio->bi_opf) || bio_op(bio) == REQ_OP_DISCARD ||
> > +         bio_op(bio) == REQ_OP_PROVISION) {
> >               thin_defer_bio_with_throttle(tc, bio);
> >               return DM_MAPIO_SUBMITTED;
> >       }
> > @@ -3396,6 +3450,9 @@ static int pool_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >       pt->adjusted_pf = pt->requested_pf = pf;
> >       ti->num_flush_bios = 1;
> >       ti->limit_swap_bios = true;
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> > +     ti->max_provision_granularity = true;
> >
> >       /*
> >        * Only need to enable discards if the pool should pass
> > @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >        * The pool uses the same discard limits as the underlying data
> >        * device.  DM core has already set this up.
> >        */
> > +
> > +     limits->max_provision_sectors = pool->sectors_per_block;
> >  }
> >
> >  static struct target_type pool_target = {
> > @@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> >               ti->max_discard_granularity = true;
> >       }
> >
> > +     ti->num_provision_bios = 1;
> > +     ti->provision_supported = true;
> > +
>
> We need this in thin_ctr: ti->max_provision_granularity = true;
>
> More needed in the thin target than thin-pool; otherwise provision bio
> issued to thin devices won't be split appropriately.  But I do think
> its fine to set in both thin_ctr and pool_ctr.
>
> Otherwise, looks good.
>
Thanks! I'll add it to the next iteration (in addition to any other
feedback that's added to v6).

Given that this series covers multiple subsystems, would there be a
preferred way of queueing this for merge?

Best
Sarthak

> Thanks,
> Mike

Re: [dm-devel] [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Thu, May 11 2023 at  4:03P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> On Tue, May 9, 2023 at 9:58 AM Mike Snitzer <snitzer@kernel.org> wrote:
> >
> > On Sat, May 06 2023 at  2:29P -0400,
> > Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
> >
> > > dm-thinpool uses the provision request to provision
> > > blocks for a dm-thin device. dm-thinpool currently does not
> > > pass through REQ_OP_PROVISION to underlying devices.
> > >
> > > For shared blocks, provision requests will break sharing and copy the
> > > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > > is not set, dm-thin will opt to zero out the entire range as a part
> > > of provisioning.
> > >
> > > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > > ---
> > >  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
> > >  1 file changed, 66 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > > index 2b13c949bd72..3f94f53ac956 100644
> > > --- a/drivers/md/dm-thin.c
> > > +++ b/drivers/md/dm-thin.c
> > > @@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> > >               ti->max_discard_granularity = true;
> > >       }
> > >
> > > +     ti->num_provision_bios = 1;
> > > +     ti->provision_supported = true;
> > > +
> >
> > We need this in thin_ctr: ti->max_provision_granularity = true;
> >
> > More needed in the thin target than thin-pool; otherwise provision bio
> > issued to thin devices won't be split appropriately.  But I do think
> > its fine to set in both thin_ctr and pool_ctr.
> >
> > Otherwise, looks good.
> >
> Thanks! I'll add it to the next iteration (in addition to any other
> feedback that's added to v6).

OK. I'll begin basing dm-thinp's WRITE_ZEROES support ontop of this
series.
 
> Given that this series covers multiple subsystems, would there be a
> preferred way of queueing this for merge?

I think it'd be OK for Jens to pick this series up and I'll rebase
my corresponding DM tree once he does.

In addition to Jens; Brian, Darrick and/or others: any chance you
could review the block core changes in this series to ensure you're
cool with them?

Would be nice to get Sarthak review feedback so that hopefully his v7
can be the final revision.

Thanks,
Mike

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Re: [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Thu, May 11 2023 at  4:03P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> On Tue, May 9, 2023 at 9:58 AM Mike Snitzer <snitzer@kernel.org> wrote:
> >
> > On Sat, May 06 2023 at  2:29P -0400,
> > Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
> >
> > > dm-thinpool uses the provision request to provision
> > > blocks for a dm-thin device. dm-thinpool currently does not
> > > pass through REQ_OP_PROVISION to underlying devices.
> > >
> > > For shared blocks, provision requests will break sharing and copy the
> > > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > > is not set, dm-thin will opt to zero out the entire range as a part
> > > of provisioning.
> > >
> > > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > > ---
> > >  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
> > >  1 file changed, 66 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > > index 2b13c949bd72..3f94f53ac956 100644
> > > --- a/drivers/md/dm-thin.c
> > > +++ b/drivers/md/dm-thin.c
> > > @@ -4288,6 +4347,9 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
> > >               ti->max_discard_granularity = true;
> > >       }
> > >
> > > +     ti->num_provision_bios = 1;
> > > +     ti->provision_supported = true;
> > > +
> >
> > We need this in thin_ctr: ti->max_provision_granularity = true;
> >
> > More needed in the thin target than thin-pool; otherwise provision bio
> > issued to thin devices won't be split appropriately.  But I do think
> > its fine to set in both thin_ctr and pool_ctr.
> >
> > Otherwise, looks good.
> >
> Thanks! I'll add it to the next iteration (in addition to any other
> feedback that's added to v6).

OK. I'll begin basing dm-thinp's WRITE_ZEROES support ontop of this
series.
 
> Given that this series covers multiple subsystems, would there be a
> preferred way of queueing this for merge?

I think it'd be OK for Jens to pick this series up and I'll rebase
my corresponding DM tree once he does.

In addition to Jens; Brian, Darrick and/or others: any chance you
could review the block core changes in this series to ensure you're
cool with them?

Would be nice to get Sarthak review feedback so that hopefully his v7
can be the final revision.

Thanks,
Mike

Re: [dm-devel] [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block. Additionally, if 'skip_block_zeroing'
> is not set, dm-thin will opt to zero out the entire range as a part
> of provisioning.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 66 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 2b13c949bd72..3f94f53ac956 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
...
> @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  	 * The pool uses the same discard limits as the underlying data
>  	 * device.  DM core has already set this up.
>  	 */
> +
> +	limits->max_provision_sectors = pool->sectors_per_block;

Just noticed that setting limits->max_provision_sectors needs to move
above pool_io_hints code that sets up discards -- otherwise the early
return from if (!pt->adjusted_pf.discard_enabled) will cause setting
max_provision_sectors to be skipped.

Here is a roll up of the fixes that need to be folded into this patch:

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 3f94f53ac956..90c8e36cb327 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -4151,6 +4151,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
 	}
 
+	limits->max_provision_sectors = pool->sectors_per_block;
+
 	/*
 	 * pt->adjusted_pf is a staging area for the actual features to use.
 	 * They get transferred to the live pool in bind_control_target()
@@ -4171,8 +4173,6 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 	 * The pool uses the same discard limits as the underlying data
 	 * device.  DM core has already set this up.
 	 */
-
-	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type pool_target = {
@@ -4349,6 +4349,7 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
 	ti->num_provision_bios = 1;
 	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	mutex_unlock(&dm_thin_pool_table.mutex);
 

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Re: [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Mike Snitzer]

On Sat, May 06 2023 at  2:29P -0400,
Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:

> dm-thinpool uses the provision request to provision
> blocks for a dm-thin device. dm-thinpool currently does not
> pass through REQ_OP_PROVISION to underlying devices.
> 
> For shared blocks, provision requests will break sharing and copy the
> contents of the entire block. Additionally, if 'skip_block_zeroing'
> is not set, dm-thin will opt to zero out the entire range as a part
> of provisioning.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 66 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 2b13c949bd72..3f94f53ac956 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
...
> @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>  	 * The pool uses the same discard limits as the underlying data
>  	 * device.  DM core has already set this up.
>  	 */
> +
> +	limits->max_provision_sectors = pool->sectors_per_block;

Just noticed that setting limits->max_provision_sectors needs to move
above pool_io_hints code that sets up discards -- otherwise the early
return from if (!pt->adjusted_pf.discard_enabled) will cause setting
max_provision_sectors to be skipped.

Here is a roll up of the fixes that need to be folded into this patch:

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 3f94f53ac956..90c8e36cb327 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -4151,6 +4151,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 		blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
 	}
 
+	limits->max_provision_sectors = pool->sectors_per_block;
+
 	/*
 	 * pt->adjusted_pf is a staging area for the actual features to use.
 	 * They get transferred to the live pool in bind_control_target()
@@ -4171,8 +4173,6 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
 	 * The pool uses the same discard limits as the underlying data
 	 * device.  DM core has already set this up.
 	 */
-
-	limits->max_provision_sectors = pool->sectors_per_block;
 }
 
 static struct target_type pool_target = {
@@ -4349,6 +4349,7 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
 	ti->num_provision_bios = 1;
 	ti->provision_supported = true;
+	ti->max_provision_granularity = true;
 
 	mutex_unlock(&dm_thin_pool_table.mutex);
 

Re: [dm-devel] [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

On Fri, May 12, 2023 at 10:32 AM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Sat, May 06 2023 at  2:29P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > is not set, dm-thin will opt to zero out the entire range as a part
> > of provisioning.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
> >  1 file changed, 66 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 2b13c949bd72..3f94f53ac956 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
> ...
> > @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >        * The pool uses the same discard limits as the underlying data
> >        * device.  DM core has already set this up.
> >        */
> > +
> > +     limits->max_provision_sectors = pool->sectors_per_block;
>
> Just noticed that setting limits->max_provision_sectors needs to move
> above pool_io_hints code that sets up discards -- otherwise the early
> return from if (!pt->adjusted_pf.discard_enabled) will cause setting
> max_provision_sectors to be skipped.
>
> Here is a roll up of the fixes that need to be folded into this patch:
>
Ah right, thanks for pointing that out! I'll fold this into v7.

Best
Sarthak

> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 3f94f53ac956..90c8e36cb327 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
> @@ -4151,6 +4151,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>                 blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
>         }
>
> +       limits->max_provision_sectors = pool->sectors_per_block;
> +
>         /*
>          * pt->adjusted_pf is a staging area for the actual features to use.
>          * They get transferred to the live pool in bind_control_target()
> @@ -4171,8 +4173,6 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>          * The pool uses the same discard limits as the underlying data
>          * device.  DM core has already set this up.
>          */
> -
> -       limits->max_provision_sectors = pool->sectors_per_block;
>  }
>
>  static struct target_type pool_target = {
> @@ -4349,6 +4349,7 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>
>         ti->num_provision_bios = 1;
>         ti->provision_supported = true;
> +       ti->max_provision_granularity = true;
>
>         mutex_unlock(&dm_thin_pool_table.mutex);
>

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Re: [PATCH v6 4/5] dm-thin: Add REQ_OP_PROVISION support

[Sarthak Kukreti]

On Fri, May 12, 2023 at 10:32 AM Mike Snitzer <snitzer@kernel.org> wrote:
>
> On Sat, May 06 2023 at  2:29P -0400,
> Sarthak Kukreti <sarthakkukreti@chromium.org> wrote:
>
> > dm-thinpool uses the provision request to provision
> > blocks for a dm-thin device. dm-thinpool currently does not
> > pass through REQ_OP_PROVISION to underlying devices.
> >
> > For shared blocks, provision requests will break sharing and copy the
> > contents of the entire block. Additionally, if 'skip_block_zeroing'
> > is not set, dm-thin will opt to zero out the entire range as a part
> > of provisioning.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/md/dm-thin.c | 70 +++++++++++++++++++++++++++++++++++++++++---
> >  1 file changed, 66 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> > index 2b13c949bd72..3f94f53ac956 100644
> > --- a/drivers/md/dm-thin.c
> > +++ b/drivers/md/dm-thin.c
> ...
> > @@ -4114,6 +4171,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
> >        * The pool uses the same discard limits as the underlying data
> >        * device.  DM core has already set this up.
> >        */
> > +
> > +     limits->max_provision_sectors = pool->sectors_per_block;
>
> Just noticed that setting limits->max_provision_sectors needs to move
> above pool_io_hints code that sets up discards -- otherwise the early
> return from if (!pt->adjusted_pf.discard_enabled) will cause setting
> max_provision_sectors to be skipped.
>
> Here is a roll up of the fixes that need to be folded into this patch:
>
Ah right, thanks for pointing that out! I'll fold this into v7.

Best
Sarthak

> diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
> index 3f94f53ac956..90c8e36cb327 100644
> --- a/drivers/md/dm-thin.c
> +++ b/drivers/md/dm-thin.c
> @@ -4151,6 +4151,8 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>                 blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
>         }
>
> +       limits->max_provision_sectors = pool->sectors_per_block;
> +
>         /*
>          * pt->adjusted_pf is a staging area for the actual features to use.
>          * They get transferred to the live pool in bind_control_target()
> @@ -4171,8 +4173,6 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
>          * The pool uses the same discard limits as the underlying data
>          * device.  DM core has already set this up.
>          */
> -
> -       limits->max_provision_sectors = pool->sectors_per_block;
>  }
>
>  static struct target_type pool_target = {
> @@ -4349,6 +4349,7 @@ static int thin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
>
>         ti->num_provision_bios = 1;
>         ti->provision_supported = true;
> +       ti->max_provision_granularity = true;
>
>         mutex_unlock(&dm_thin_pool_table.mutex);
>

[dm-devel] [PATCH v6 5/5] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.1.521.gf1e218fcd8-goog

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[PATCH v6 5/5] loop: Add support for provision requests

[Sarthak Kukreti]

Add support for provision requests to loopback devices.
Loop devices will configure provision support based on
whether the underlying block device/file can support
the provision request and upon receiving a provision bio,
will map it to the backing device/storage. For loop devices
over files, a REQ_OP_PROVISION request will translate to
an fallocate mode 0 call on the backing file.

Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
---
 drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bc31bb7072a2..13c4b4f8b9c1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
 	return ret;
 }
 
+static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
+{
+	struct file *file = lo->lo_backing_file;
+	struct request_queue *q = lo->lo_queue;
+	int ret;
+
+	if (!q->limits.max_provision_sectors) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
+	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
+		ret = -EIO;
+ out:
+	return ret;
+}
+
 static int lo_req_flush(struct loop_device *lo, struct request *rq)
 {
 	int ret = vfs_fsync(lo->lo_backing_file, 0);
@@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
 				FALLOC_FL_PUNCH_HOLE);
 	case REQ_OP_DISCARD:
 		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
+	case REQ_OP_PROVISION:
+		return lo_req_provision(lo, rq, pos);
 	case REQ_OP_WRITE:
 		if (cmd->use_aio)
 			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
@@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
 				   &loop_attribute_group);
 }
 
+static void loop_config_provision(struct loop_device *lo)
+{
+	struct file *file = lo->lo_backing_file;
+	struct inode *inode = file->f_mapping->host;
+
+	/*
+	 * If the backing device is a block device, mirror its provisioning
+	 * capability.
+	 */
+	if (S_ISBLK(inode->i_mode)) {
+		blk_queue_max_provision_sectors(lo->lo_queue,
+			bdev_max_provision_sectors(I_BDEV(inode)));
+	} else if (file->f_op->fallocate) {
+		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
+	} else {
+		blk_queue_max_provision_sectors(lo->lo_queue, 0);
+	}
+}
+
 static void loop_config_discard(struct loop_device *lo)
 {
 	struct file *file = lo->lo_backing_file;
@@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 	blk_queue_io_min(lo->lo_queue, bsize);
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 	loop_update_rotational(lo);
 	loop_update_dio(lo);
 	loop_sysfs_init(lo);
@@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
 	}
 
 	loop_config_discard(lo);
+	loop_config_provision(lo);
 
 	/* update dio if lo_offset or transfer is changed */
 	__loop_update_dio(lo, lo->use_dio);
@@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	case REQ_OP_FLUSH:
 	case REQ_OP_DISCARD:
 	case REQ_OP_WRITE_ZEROES:
+	case REQ_OP_PROVISION:
 		cmd->use_aio = false;
 		break;
 	default:
-- 
2.40.1.521.gf1e218fcd8-goog

Re: [dm-devel] [PATCH v6 5/5] loop: Add support for provision requests

[Brian Foster]

On Fri, May 05, 2023 at 11:29:09PM -0700, Sarthak Kukreti wrote:
> Add support for provision requests to loopback devices.
> Loop devices will configure provision support based on
> whether the underlying block device/file can support
> the provision request and upon receiving a provision bio,
> will map it to the backing device/storage. For loop devices
> over files, a REQ_OP_PROVISION request will translate to
> an fallocate mode 0 call on the backing file.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 42 insertions(+)
> 
> diff --git a/drivers/block/loop.c b/drivers/block/loop.c
> index bc31bb7072a2..13c4b4f8b9c1 100644
> --- a/drivers/block/loop.c
> +++ b/drivers/block/loop.c
> @@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
>  	return ret;
>  }
>  
> +static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
> +{
> +	struct file *file = lo->lo_backing_file;
> +	struct request_queue *q = lo->lo_queue;
> +	int ret;
> +
> +	if (!q->limits.max_provision_sectors) {
> +		ret = -EOPNOTSUPP;
> +		goto out;
> +	}
> +
> +	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
> +	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
> +		ret = -EIO;
> + out:
> +	return ret;
> +}
> +
>  static int lo_req_flush(struct loop_device *lo, struct request *rq)
>  {
>  	int ret = vfs_fsync(lo->lo_backing_file, 0);
> @@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
>  				FALLOC_FL_PUNCH_HOLE);
>  	case REQ_OP_DISCARD:
>  		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
> +	case REQ_OP_PROVISION:
> +		return lo_req_provision(lo, rq, pos);

Hi Sarthak,

The only thing that stands out to me is the separate lo_req_provision()
helper here. It seems it might be a little cleaner to extend and reuse
lo_req_fallocate()..? But that's not something I feel strongly about, so
this all looks pretty good to me either way, FWIW.

Brian

>  	case REQ_OP_WRITE:
>  		if (cmd->use_aio)
>  			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
> @@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
>  				   &loop_attribute_group);
>  }
>  
> +static void loop_config_provision(struct loop_device *lo)
> +{
> +	struct file *file = lo->lo_backing_file;
> +	struct inode *inode = file->f_mapping->host;
> +
> +	/*
> +	 * If the backing device is a block device, mirror its provisioning
> +	 * capability.
> +	 */
> +	if (S_ISBLK(inode->i_mode)) {
> +		blk_queue_max_provision_sectors(lo->lo_queue,
> +			bdev_max_provision_sectors(I_BDEV(inode)));
> +	} else if (file->f_op->fallocate) {
> +		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
> +	} else {
> +		blk_queue_max_provision_sectors(lo->lo_queue, 0);
> +	}
> +}
> +
>  static void loop_config_discard(struct loop_device *lo)
>  {
>  	struct file *file = lo->lo_backing_file;
> @@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
>  	blk_queue_io_min(lo->lo_queue, bsize);
>  
>  	loop_config_discard(lo);
> +	loop_config_provision(lo);
>  	loop_update_rotational(lo);
>  	loop_update_dio(lo);
>  	loop_sysfs_init(lo);
> @@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
>  	}
>  
>  	loop_config_discard(lo);
> +	loop_config_provision(lo);
>  
>  	/* update dio if lo_offset or transfer is changed */
>  	__loop_update_dio(lo, lo->use_dio);
> @@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
>  	case REQ_OP_FLUSH:
>  	case REQ_OP_DISCARD:
>  	case REQ_OP_WRITE_ZEROES:
> +	case REQ_OP_PROVISION:
>  		cmd->use_aio = false;
>  		break;
>  	default:
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

--
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dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [PATCH v6 5/5] loop: Add support for provision requests

[Brian Foster]

On Fri, May 05, 2023 at 11:29:09PM -0700, Sarthak Kukreti wrote:
> Add support for provision requests to loopback devices.
> Loop devices will configure provision support based on
> whether the underlying block device/file can support
> the provision request and upon receiving a provision bio,
> will map it to the backing device/storage. For loop devices
> over files, a REQ_OP_PROVISION request will translate to
> an fallocate mode 0 call on the backing file.
> 
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> ---
>  drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 42 insertions(+)
> 
> diff --git a/drivers/block/loop.c b/drivers/block/loop.c
> index bc31bb7072a2..13c4b4f8b9c1 100644
> --- a/drivers/block/loop.c
> +++ b/drivers/block/loop.c
> @@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
>  	return ret;
>  }
>  
> +static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
> +{
> +	struct file *file = lo->lo_backing_file;
> +	struct request_queue *q = lo->lo_queue;
> +	int ret;
> +
> +	if (!q->limits.max_provision_sectors) {
> +		ret = -EOPNOTSUPP;
> +		goto out;
> +	}
> +
> +	ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
> +	if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
> +		ret = -EIO;
> + out:
> +	return ret;
> +}
> +
>  static int lo_req_flush(struct loop_device *lo, struct request *rq)
>  {
>  	int ret = vfs_fsync(lo->lo_backing_file, 0);
> @@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
>  				FALLOC_FL_PUNCH_HOLE);
>  	case REQ_OP_DISCARD:
>  		return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
> +	case REQ_OP_PROVISION:
> +		return lo_req_provision(lo, rq, pos);

Hi Sarthak,

The only thing that stands out to me is the separate lo_req_provision()
helper here. It seems it might be a little cleaner to extend and reuse
lo_req_fallocate()..? But that's not something I feel strongly about, so
this all looks pretty good to me either way, FWIW.

Brian

>  	case REQ_OP_WRITE:
>  		if (cmd->use_aio)
>  			return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
> @@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
>  				   &loop_attribute_group);
>  }
>  
> +static void loop_config_provision(struct loop_device *lo)
> +{
> +	struct file *file = lo->lo_backing_file;
> +	struct inode *inode = file->f_mapping->host;
> +
> +	/*
> +	 * If the backing device is a block device, mirror its provisioning
> +	 * capability.
> +	 */
> +	if (S_ISBLK(inode->i_mode)) {
> +		blk_queue_max_provision_sectors(lo->lo_queue,
> +			bdev_max_provision_sectors(I_BDEV(inode)));
> +	} else if (file->f_op->fallocate) {
> +		blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
> +	} else {
> +		blk_queue_max_provision_sectors(lo->lo_queue, 0);
> +	}
> +}
> +
>  static void loop_config_discard(struct loop_device *lo)
>  {
>  	struct file *file = lo->lo_backing_file;
> @@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
>  	blk_queue_io_min(lo->lo_queue, bsize);
>  
>  	loop_config_discard(lo);
> +	loop_config_provision(lo);
>  	loop_update_rotational(lo);
>  	loop_update_dio(lo);
>  	loop_sysfs_init(lo);
> @@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
>  	}
>  
>  	loop_config_discard(lo);
> +	loop_config_provision(lo);
>  
>  	/* update dio if lo_offset or transfer is changed */
>  	__loop_update_dio(lo, lo->use_dio);
> @@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
>  	case REQ_OP_FLUSH:
>  	case REQ_OP_DISCARD:
>  	case REQ_OP_WRITE_ZEROES:
> +	case REQ_OP_PROVISION:
>  		cmd->use_aio = false;
>  		break;
>  	default:
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

Re: [dm-devel] [PATCH v6 5/5] loop: Add support for provision requests

[Sarthak Kukreti]

On Mon, May 15, 2023 at 5:37 AM Brian Foster <bfoster@redhat.com> wrote:
>
> On Fri, May 05, 2023 at 11:29:09PM -0700, Sarthak Kukreti wrote:
> > Add support for provision requests to loopback devices.
> > Loop devices will configure provision support based on
> > whether the underlying block device/file can support
> > the provision request and upon receiving a provision bio,
> > will map it to the backing device/storage. For loop devices
> > over files, a REQ_OP_PROVISION request will translate to
> > an fallocate mode 0 call on the backing file.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
> >  1 file changed, 42 insertions(+)
> >
> > diff --git a/drivers/block/loop.c b/drivers/block/loop.c
> > index bc31bb7072a2..13c4b4f8b9c1 100644
> > --- a/drivers/block/loop.c
> > +++ b/drivers/block/loop.c
> > @@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
> >       return ret;
> >  }
> >
> > +static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
> > +{
> > +     struct file *file = lo->lo_backing_file;
> > +     struct request_queue *q = lo->lo_queue;
> > +     int ret;
> > +
> > +     if (!q->limits.max_provision_sectors) {
> > +             ret = -EOPNOTSUPP;
> > +             goto out;
> > +     }
> > +
> > +     ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
> > +     if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
> > +             ret = -EIO;
> > + out:
> > +     return ret;
> > +}
> > +
> >  static int lo_req_flush(struct loop_device *lo, struct request *rq)
> >  {
> >       int ret = vfs_fsync(lo->lo_backing_file, 0);
> > @@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
> >                               FALLOC_FL_PUNCH_HOLE);
> >       case REQ_OP_DISCARD:
> >               return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
> > +     case REQ_OP_PROVISION:
> > +             return lo_req_provision(lo, rq, pos);
>
> Hi Sarthak,
>
> The only thing that stands out to me is the separate lo_req_provision()
> helper here. It seems it might be a little cleaner to extend and reuse
> lo_req_fallocate()..? But that's not something I feel strongly about, so
> this all looks pretty good to me either way, FWIW.
>
Fair point, I think that should shorten the patch (and for
correctness, we'd want to add FALLOC_FL_KEEP_SIZE for REQ_OP_PROVISION
too). I'll fix this up in v7.

Best
Sarthak

> Brian
>
> >       case REQ_OP_WRITE:
> >               if (cmd->use_aio)
> >                       return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
> > @@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
> >                                  &loop_attribute_group);
> >  }
> >
> > +static void loop_config_provision(struct loop_device *lo)
> > +{
> > +     struct file *file = lo->lo_backing_file;
> > +     struct inode *inode = file->f_mapping->host;
> > +
> > +     /*
> > +      * If the backing device is a block device, mirror its provisioning
> > +      * capability.
> > +      */
> > +     if (S_ISBLK(inode->i_mode)) {
> > +             blk_queue_max_provision_sectors(lo->lo_queue,
> > +                     bdev_max_provision_sectors(I_BDEV(inode)));
> > +     } else if (file->f_op->fallocate) {
> > +             blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
> > +     } else {
> > +             blk_queue_max_provision_sectors(lo->lo_queue, 0);
> > +     }
> > +}
> > +
> >  static void loop_config_discard(struct loop_device *lo)
> >  {
> >       struct file *file = lo->lo_backing_file;
> > @@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
> >       blk_queue_io_min(lo->lo_queue, bsize);
> >
> >       loop_config_discard(lo);
> > +     loop_config_provision(lo);
> >       loop_update_rotational(lo);
> >       loop_update_dio(lo);
> >       loop_sysfs_init(lo);
> > @@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
> >       }
> >
> >       loop_config_discard(lo);
> > +     loop_config_provision(lo);
> >
> >       /* update dio if lo_offset or transfer is changed */
> >       __loop_update_dio(lo, lo->use_dio);
> > @@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
> >       case REQ_OP_FLUSH:
> >       case REQ_OP_DISCARD:
> >       case REQ_OP_WRITE_ZEROES:
> > +     case REQ_OP_PROVISION:
> >               cmd->use_aio = false;
> >               break;
> >       default:
> > --
> > 2.40.1.521.gf1e218fcd8-goog
> >
>

--
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Re: [PATCH v6 5/5] loop: Add support for provision requests

[Sarthak Kukreti]

On Mon, May 15, 2023 at 5:37 AM Brian Foster <bfoster@redhat.com> wrote:
>
> On Fri, May 05, 2023 at 11:29:09PM -0700, Sarthak Kukreti wrote:
> > Add support for provision requests to loopback devices.
> > Loop devices will configure provision support based on
> > whether the underlying block device/file can support
> > the provision request and upon receiving a provision bio,
> > will map it to the backing device/storage. For loop devices
> > over files, a REQ_OP_PROVISION request will translate to
> > an fallocate mode 0 call on the backing file.
> >
> > Signed-off-by: Sarthak Kukreti <sarthakkukreti@chromium.org>
> > ---
> >  drivers/block/loop.c | 42 ++++++++++++++++++++++++++++++++++++++++++
> >  1 file changed, 42 insertions(+)
> >
> > diff --git a/drivers/block/loop.c b/drivers/block/loop.c
> > index bc31bb7072a2..13c4b4f8b9c1 100644
> > --- a/drivers/block/loop.c
> > +++ b/drivers/block/loop.c
> > @@ -327,6 +327,24 @@ static int lo_fallocate(struct loop_device *lo, struct request *rq, loff_t pos,
> >       return ret;
> >  }
> >
> > +static int lo_req_provision(struct loop_device *lo, struct request *rq, loff_t pos)
> > +{
> > +     struct file *file = lo->lo_backing_file;
> > +     struct request_queue *q = lo->lo_queue;
> > +     int ret;
> > +
> > +     if (!q->limits.max_provision_sectors) {
> > +             ret = -EOPNOTSUPP;
> > +             goto out;
> > +     }
> > +
> > +     ret = file->f_op->fallocate(file, 0, pos, blk_rq_bytes(rq));
> > +     if (unlikely(ret && ret != -EINVAL && ret != -EOPNOTSUPP))
> > +             ret = -EIO;
> > + out:
> > +     return ret;
> > +}
> > +
> >  static int lo_req_flush(struct loop_device *lo, struct request *rq)
> >  {
> >       int ret = vfs_fsync(lo->lo_backing_file, 0);
> > @@ -488,6 +506,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
> >                               FALLOC_FL_PUNCH_HOLE);
> >       case REQ_OP_DISCARD:
> >               return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE);
> > +     case REQ_OP_PROVISION:
> > +             return lo_req_provision(lo, rq, pos);
>
> Hi Sarthak,
>
> The only thing that stands out to me is the separate lo_req_provision()
> helper here. It seems it might be a little cleaner to extend and reuse
> lo_req_fallocate()..? But that's not something I feel strongly about, so
> this all looks pretty good to me either way, FWIW.
>
Fair point, I think that should shorten the patch (and for
correctness, we'd want to add FALLOC_FL_KEEP_SIZE for REQ_OP_PROVISION
too). I'll fix this up in v7.

Best
Sarthak

> Brian
>
> >       case REQ_OP_WRITE:
> >               if (cmd->use_aio)
> >                       return lo_rw_aio(lo, cmd, pos, ITER_SOURCE);
> > @@ -754,6 +774,25 @@ static void loop_sysfs_exit(struct loop_device *lo)
> >                                  &loop_attribute_group);
> >  }
> >
> > +static void loop_config_provision(struct loop_device *lo)
> > +{
> > +     struct file *file = lo->lo_backing_file;
> > +     struct inode *inode = file->f_mapping->host;
> > +
> > +     /*
> > +      * If the backing device is a block device, mirror its provisioning
> > +      * capability.
> > +      */
> > +     if (S_ISBLK(inode->i_mode)) {
> > +             blk_queue_max_provision_sectors(lo->lo_queue,
> > +                     bdev_max_provision_sectors(I_BDEV(inode)));
> > +     } else if (file->f_op->fallocate) {
> > +             blk_queue_max_provision_sectors(lo->lo_queue, UINT_MAX >> 9);
> > +     } else {
> > +             blk_queue_max_provision_sectors(lo->lo_queue, 0);
> > +     }
> > +}
> > +
> >  static void loop_config_discard(struct loop_device *lo)
> >  {
> >       struct file *file = lo->lo_backing_file;
> > @@ -1092,6 +1131,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
> >       blk_queue_io_min(lo->lo_queue, bsize);
> >
> >       loop_config_discard(lo);
> > +     loop_config_provision(lo);
> >       loop_update_rotational(lo);
> >       loop_update_dio(lo);
> >       loop_sysfs_init(lo);
> > @@ -1304,6 +1344,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info)
> >       }
> >
> >       loop_config_discard(lo);
> > +     loop_config_provision(lo);
> >
> >       /* update dio if lo_offset or transfer is changed */
> >       __loop_update_dio(lo, lo->use_dio);
> > @@ -1830,6 +1871,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
> >       case REQ_OP_FLUSH:
> >       case REQ_OP_DISCARD:
> >       case REQ_OP_WRITE_ZEROES:
> > +     case REQ_OP_PROVISION:
> >               cmd->use_aio = false;
> >               break;
> >       default:
> > --
> > 2.40.1.521.gf1e218fcd8-goog
> >
>

Re: [dm-devel] [PATCH v6 0/5] Introduce block provisioning primitives

[Darrick J. Wong]

On Fri, May 05, 2023 at 11:29:04PM -0700, Sarthak Kukreti wrote:
> Hi,
> 
> This patch series covers iteration 6 of adding support for block
> provisioning requests.

I didn't even notice there was a v6.  Could you start a fresh thread
when you bump the revision count, please?

--D

> Changes from v5:
> - Remove explicit supports_provision from dm devices.
> - Move provision sectors io hint to pool_io_hint. Other devices
>   will derive the provisioning limits from the stack.
> - Remove artifact from v4 to omit cell_defer_no_holder for
>   REQ_OP_PROVISION.
> - Fix blkdev_fallocate() called with invalid fallocate
>   modes to propagate errors correctly.
> 
> Sarthak Kukreti (5):
>   block: Don't invalidate pagecache for invalid falloc modes
>   block: Introduce provisioning primitives
>   dm: Add block provisioning support
>   dm-thin: Add REQ_OP_PROVISION support
>   loop: Add support for provision requests
> 
>  block/blk-core.c              |  5 +++
>  block/blk-lib.c               | 53 ++++++++++++++++++++++++++
>  block/blk-merge.c             | 18 +++++++++
>  block/blk-settings.c          | 19 ++++++++++
>  block/blk-sysfs.c             |  9 +++++
>  block/bounce.c                |  1 +
>  block/fops.c                  | 31 +++++++++++++---
>  drivers/block/loop.c          | 42 +++++++++++++++++++++
>  drivers/md/dm-crypt.c         |  4 +-
>  drivers/md/dm-linear.c        |  1 +
>  drivers/md/dm-snap.c          |  7 ++++
>  drivers/md/dm-table.c         | 23 ++++++++++++
>  drivers/md/dm-thin.c          | 70 +++++++++++++++++++++++++++++++++--
>  drivers/md/dm.c               |  6 +++
>  include/linux/bio.h           |  6 ++-
>  include/linux/blk_types.h     |  5 ++-
>  include/linux/blkdev.h        | 16 ++++++++
>  include/linux/device-mapper.h | 17 +++++++++
>  18 files changed, 319 insertions(+), 14 deletions(-)
> 
> -- 
> 2.40.1.521.gf1e218fcd8-goog
> 

--
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dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel

Re: [PATCH v6 0/5] Introduce block provisioning primitives

[Darrick J. Wong]

On Fri, May 05, 2023 at 11:29:04PM -0700, Sarthak Kukreti wrote:
> Hi,
> 
> This patch series covers iteration 6 of adding support for block
> provisioning requests.

I didn't even notice there was a v6.  Could you start a fresh thread
when you bump the revision count, please?

--D

> Changes from v5:
> - Remove explicit supports_provision from dm devices.
> - Move provision sectors io hint to pool_io_hint. Other devices
>   will derive the provisioning limits from the stack.
> - Remove artifact from v4 to omit cell_defer_no_holder for
>   REQ_OP_PROVISION.
> - Fix blkdev_fallocate() called with invalid fallocate
>   modes to propagate errors correctly.
> 
> Sarthak Kukreti (5):
>   block: Don't invalidate pagecache for invalid falloc modes
>   block: Introduce provisioning primitives
>   dm: Add block provisioning support
>   dm-thin: Add REQ_OP_PROVISION support
>   loop: Add support for provision requests
> 
>  block/blk-core.c              |  5 +++
>  block/blk-lib.c               | 53 ++++++++++++++++++++++++++
>  block/blk-merge.c             | 18 +++++++++
>  block/blk-settings.c          | 19 ++++++++++
>  block/blk-sysfs.c             |  9 +++++
>  block/bounce.c                |  1 +
>  block/fops.c                  | 31 +++++++++++++---
>  drivers/block/loop.c          | 42 +++++++++++++++++++++
>  drivers/md/dm-crypt.c         |  4 +-
>  drivers/md/dm-linear.c        |  1 +
>  drivers/md/dm-snap.c          |  7 ++++
>  drivers/md/dm-table.c         | 23 ++++++++++++
>  drivers/md/dm-thin.c          | 70 +++++++++++++++++++++++++++++++++--
>  drivers/md/dm.c               |  6 +++
>  include/linux/bio.h           |  6 ++-
>  include/linux/blk_types.h     |  5 ++-
>  include/linux/blkdev.h        | 16 ++++++++
>  include/linux/device-mapper.h | 17 +++++++++
>  18 files changed, 319 insertions(+), 14 deletions(-)
> 
> -- 
> 2.40.1.521.gf1e218fcd8-goog
>