From: mchristi@redhat.com
To: linux-f2fs-devel@lists.sourceforge.net,
linux-ext4@vger.kernel.org, konrad.wilk@oracle.com,
drbd-dev@lists.linbit.com, philipp.reisner@linbit.com,
lars.ellenberg@linbit.com, linux-raid@vger.kernel.org,
dm-devel@redhat.com, linux-fsdevel@vger.kernel.org,
linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-mtd@lists.infradead.org, target-devel@vger.kernel.org,
linux-btrfs@vger.kernel.org, osd-dev@open-osd.org,
xfs@oss.sgi.com, ocfs2-devel@oss.oracle.com
Cc: Mike Christie <mchristi@redhat.com>
Subject: [PATCH 32/35] block: shrink bi_rw and bi_op
Date: Tue, 5 Jan 2016 14:53:35 -0600 [thread overview]
Message-ID: <1452027218-32303-33-git-send-email-mchristi@redhat.com> (raw)
In-Reply-To: <1452027218-32303-1-git-send-email-mchristi@redhat.com>
From: Mike Christie <mchristi@redhat.com>
There is no need for bi_op/op and bi_rw to be so large
now, so this patch shrinks them.
Signed-off-by: Mike Christie <mchristi@redhat.com>
---
block/blk-core.c | 2 +-
drivers/md/dm-flakey.c | 2 +-
drivers/md/raid5.c | 13 +++++++------
fs/btrfs/check-integrity.c | 4 ++--
fs/btrfs/inode.c | 2 +-
include/linux/bio.h | 13 ++-----------
include/linux/blk_types.h | 11 +++--------
include/linux/blkdev.h | 2 +-
8 files changed, 18 insertions(+), 31 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index 0f6cb5c..ae2afab 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1854,7 +1854,7 @@ static void handle_bad_sector(struct bio *bio)
char b[BDEVNAME_SIZE];
printk(KERN_INFO "attempt to access beyond end of device\n");
- printk(KERN_INFO "%s: rw=%d,%ld, want=%Lu, limit=%Lu\n",
+ printk(KERN_INFO "%s: rw=%d,%u, want=%Lu, limit=%Lu\n",
bdevname(bio->bi_bdev, b),
bio->bi_op, bio->bi_rw,
(unsigned long long)bio_end_sector(bio),
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 09e2afc..b831226 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -266,7 +266,7 @@ static void corrupt_bio_data(struct bio *bio, struct flakey_c *fc)
data[fc->corrupt_bio_byte - 1] = fc->corrupt_bio_value;
DMDEBUG("Corrupting data bio=%p by writing %u to byte %u "
- "(rw=%c bi_rw=%lu bi_sector=%llu cur_bytes=%u)\n",
+ "(rw=%c bi_rw=%u bi_sector=%llu cur_bytes=%u)\n",
bio, fc->corrupt_bio_value, fc->corrupt_bio_byte,
(bio_data_dir(bio) == WRITE) ? 'w' : 'r', bio->bi_rw,
(unsigned long long)bio->bi_iter.bi_sector, bio_bytes);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index fa4fe95..aafd49e 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1015,9 +1015,9 @@ again:
: raid5_end_read_request;
bi->bi_private = sh;
- pr_debug("%s: for %llu schedule op %ld on disc %d\n",
+ pr_debug("%s: for %llu schedule op %d,%u on disc %d\n",
__func__, (unsigned long long)sh->sector,
- bi->bi_rw, i);
+ bi->bi_op, bi->bi_rw, i);
atomic_inc(&sh->count);
if (sh != head_sh)
atomic_inc(&head_sh->count);
@@ -1067,10 +1067,10 @@ again:
rbi->bi_end_io = raid5_end_write_request;
rbi->bi_private = sh;
- pr_debug("%s: for %llu schedule op %ld on "
+ pr_debug("%s: for %llu schedule op %d,%u on "
"replacement disc %d\n",
__func__, (unsigned long long)sh->sector,
- rbi->bi_rw, i);
+ rbi->bi_op, rbi->bi_rw, i);
atomic_inc(&sh->count);
if (sh != head_sh)
atomic_inc(&head_sh->count);
@@ -1102,8 +1102,9 @@ again:
if (!rdev && !rrdev) {
if (op_is_write(op))
set_bit(STRIPE_DEGRADED, &sh->state);
- pr_debug("skip op %ld on disc %d for sector %llu\n",
- bi->bi_rw, i, (unsigned long long)sh->sector);
+ pr_debug("skip op %d,%u on disc %d for sector %llu\n",
+ bi->bi_op, bi->bi_rw, i,
+ (unsigned long long)sh->sector);
clear_bit(R5_LOCKED, &sh->dev[i].flags);
set_bit(STRIPE_HANDLE, &sh->state);
}
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index e409d1f..1623d11 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2985,7 +2985,7 @@ static void __btrfsic_submit_bio(struct bio *bio)
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
- "submit_bio(rw=%d,0x%lx, bi_vcnt=%u,"
+ "submit_bio(rw=%d,0x%x, bi_vcnt=%u,"
" bi_sector=%llu (bytenr %llu), bi_bdev=%p)\n",
bio->bi_op, bio->bi_rw, bio->bi_vcnt,
(unsigned long long)bio->bi_iter.bi_sector,
@@ -3028,7 +3028,7 @@ static void __btrfsic_submit_bio(struct bio *bio)
if (dev_state->state->print_mask &
BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
printk(KERN_INFO
- "submit_bio(rw=%d,0x%lx FLUSH, bdev=%p)\n",
+ "submit_bio(rw=%d,0x%x FLUSH, bdev=%p)\n",
bio->bi_op, bio->bi_rw, bio->bi_bdev);
if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
if ((dev_state->state->print_mask &
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a96984f..b9c3799 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8061,7 +8061,7 @@ static void btrfs_end_dio_bio(struct bio *bio)
if (err)
btrfs_warn(BTRFS_I(dip->inode)->root->fs_info,
- "direct IO failed ino %llu rw %d,%lu sector %#Lx len %u err no %d",
+ "direct IO failed ino %llu rw %d,0x%x sector %#Lx len %u err no %d",
btrfs_ino(dip->inode), bio->bi_op, bio->bi_rw,
(unsigned long long)bio->bi_iter.bi_sector,
bio->bi_iter.bi_size, err);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 1e4b3b5..c91afc1 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -44,18 +44,9 @@
#define BIO_MAX_SIZE (BIO_MAX_PAGES << PAGE_CACHE_SHIFT)
#define BIO_MAX_SECTORS (BIO_MAX_SIZE >> 9)
-/*
- * upper 16 bits of bi_rw define the io priority of this bio
- */
-#define BIO_PRIO_SHIFT (8 * sizeof(unsigned long) - IOPRIO_BITS)
-#define bio_prio(bio) ((bio)->bi_rw >> BIO_PRIO_SHIFT)
+#define bio_prio(bio) (bio)->bi_ioprio
#define bio_prio_valid(bio) ioprio_valid(bio_prio(bio))
-
-#define bio_set_prio(bio, prio) do { \
- WARN_ON(prio >= (1 << IOPRIO_BITS)); \
- (bio)->bi_rw &= ((1UL << BIO_PRIO_SHIFT) - 1); \
- (bio)->bi_rw |= ((unsigned long) (prio) << BIO_PRIO_SHIFT); \
-} while (0)
+#define bio_set_prio(bio, prio) ((bio)->bi_ioprio = prio)
/*
* various member access, note that bio_data should of course not be used
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index bb30c2b..5d19b393 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -48,14 +48,9 @@ struct bio {
struct block_device *bi_bdev;
unsigned int bi_flags; /* status, command, etc */
int bi_error;
- unsigned long bi_rw; /* bottom bits rq_flags_bits
- * top bits priority
- */
- /*
- * this will be a u8 in the next patches and bi_rw can be shrunk to
- * a u32. For compat in these transistional patches op is a int here.
- */
- int bi_op; /* REQ_OP */
+ unsigned int bi_rw; /* rq_flag_bits */
+ unsigned short bi_ioprio;
+ u8 bi_op; /* REQ_OP */
struct bvec_iter bi_iter;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index bc024c7..83d6f033 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -96,7 +96,7 @@ struct request {
struct request_queue *q;
struct blk_mq_ctx *mq_ctx;
- int op;
+ u8 op;
u64 cmd_flags;
unsigned cmd_type;
unsigned long atomic_flags;
--
1.8.3.1
next prev parent reply other threads:[~2016-01-05 20:53 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-05 20:53 [PATCH 00/35 v2] separate operations from flags in the bio/request structs mchristi
2016-01-05 20:53 ` [PATCH 01/35] block/fs/drivers: remove rw argument from submit_bio mchristi
2016-01-06 15:59 ` [dm-devel] " Bart Van Assche
2016-01-09 13:34 ` Christoph Hellwig
2016-01-10 0:43 ` Mike Christie
2016-01-05 20:53 ` [PATCH 02/35] block: add REQ_OP definitions and bi_op/op fields mchristi
[not found] ` <1452027218-32303-3-git-send-email-mchristi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-01-06 23:17 ` Martin K. Petersen
2016-01-09 13:37 ` Christoph Hellwig
2016-01-10 0:56 ` [dm-devel] " Mike Christie
2016-01-10 1:21 ` Mike Christie
2016-01-10 7:15 ` Christoph Hellwig
2016-01-10 7:14 ` Christoph Hellwig
2016-01-05 20:53 ` [PATCH 03/35] block, fs, mm, drivers: set bi_op to REQ_OP mchristi
2016-01-05 20:53 ` [PATCH 04/35] fs: have submit_bh users pass in op and flags separately mchristi
2016-01-05 20:53 ` [PATCH 05/35] fs: have ll_rw_block " mchristi
2016-01-05 23:20 ` kbuild test robot
2016-01-05 20:53 ` [PATCH 06/35] direct-io: set bi_op to REQ_OP mchristi
2016-01-05 20:53 ` [PATCH 07/35] btrfs: have submit_one_bio users setup bio bi_op mchristi
2016-01-05 20:53 ` [PATCH 08/35] btrfs: set bi_op tp REQ_OP mchristi
2016-01-05 20:53 ` [PATCH 09/35] btrfs: update __btrfs_map_block for bi_op transition mchristi
2016-01-05 20:53 ` [PATCH 10/35] btrfs: don't pass rq_flag_bits if there is a bio mchristi
2016-01-05 20:53 ` [PATCH 11/35] f2fs: set bi_op to REQ_OP mchristi
2016-01-05 20:53 ` [PATCH 12/35] gfs2: " mchristi
2016-01-05 20:53 ` [PATCH 13/35] xfs: " mchristi
2016-01-07 3:11 ` Dave Chinner
2016-01-05 20:53 ` [PATCH 14/35] hfsplus: " mchristi
2016-01-05 20:53 ` [PATCH 15/35] mpage: " mchristi
2016-01-05 20:53 ` [PATCH 16/35] nilfs: " mchristi
2016-01-05 20:53 ` [PATCH 17/35] ocfs2: " mchristi
2016-01-05 20:53 ` [PATCH 18/35] pm: " mchristi
2016-01-05 20:53 ` [PATCH 19/35] dm: " mchristi
2016-01-05 20:53 ` [PATCH 20/35] dm: pass dm stats data dir instead of bi_rw mchristi
2016-01-05 20:53 ` [PATCH 21/35] bcache: set bi_op to REQ_OP mchristi
2016-01-05 20:53 ` [PATCH 22/35] drbd: " mchristi
2016-01-05 20:53 ` [PATCH 23/35] md/raid: " mchristi
2016-01-05 20:53 ` [PATCH 24/35] xen: " mchristi
2016-01-05 20:53 ` [PATCH 25/35] target: " mchristi
2016-01-06 19:06 ` Nicholas A. Bellinger
2016-01-05 20:53 ` [PATCH 26/35] block: set op " mchristi
2016-01-09 13:39 ` Christoph Hellwig
2016-01-05 20:53 ` [PATCH 27/35] drivers: set request " mchristi
2016-01-05 20:53 ` [PATCH 28/35] blktrace: get op from req->op/bio->bi_op mchristi
2016-01-05 20:53 ` [PATCH 29/35] ide cd: do not set REQ_WRITE on requests mchristi
2016-01-05 20:53 ` [PATCH 30/35] block, fs, drivers: do not test bi_rw for REQ_OPs mchristi
2016-01-05 20:53 ` [PATCH 31/35] block, fs: remove old REQ definitions mchristi
2016-01-05 20:53 ` mchristi [this message]
2016-01-05 20:53 ` [PATCH 33/35] block, drivers: add REQ_OP_FLUSH operation mchristi
2016-01-05 20:53 ` [PATCH 34/35] block: add QUEUE_FLAGs for flush and fua mchristi
2016-01-05 23:46 ` kbuild test robot
[not found] ` <1452027218-32303-35-git-send-email-mchristi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-01-09 8:04 ` Christoph Hellwig
2016-01-05 20:53 ` [PATCH 35/35] block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH mchristi
2016-01-05 23:53 ` kbuild test robot
[not found] ` <1452027218-32303-1-git-send-email-mchristi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-01-07 1:40 ` [PATCH 00/35 v2] separate operations from flags in the bio/request structs Martin K. Petersen
2016-01-07 3:13 ` Dave Chinner
2016-01-08 13:32 ` Christoph Hellwig
2016-01-08 20:50 ` Mike Christie
2016-01-08 23:07 ` Mike Snitzer
-- strict thread matches above, loose matches on Subject: below --
2016-01-11 20:20 [PATCH 00/35 v3] eparate " mchristi
2016-01-11 20:21 ` [PATCH 32/35] block: shrink bi_rw and bi_op mchristi
2016-02-24 19:47 [PATCH 00/35 v4] separate operations from flags in the bio/request structs mchristi
2016-02-24 19:48 ` [PATCH 32/35] block: shrink bi_rw and bi_op mchristi
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