[PATCH 5.19 019/207] block: simplify disk shutdown

Greg Kroah-Hartman
2022-09-26T11:39:36Z

From: Christoph Hellwig <hch@lst.de>

[ Upstream commit 6f8191fdf41d3a53cc1d63fe2234e812c55a0092 ]

Set the queue dying flag and call blk_mq_exit_queue from del_gendisk for
all disks that do not have separately allocated queues, and thus remove
the need to call blk_cleanup_queue for them.

Rename blk_cleanup_disk to blk_mq_destroy_queue to make it clear that
this function is intended only for separately allocated blk-mq queues.

This saves an extra queue freeze for devices without a separately
allocated queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20220619060552.1850436-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: 8fe4ce5836e9 ("scsi: core: Fix a use-after-free")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
block/blk-core.c | 37 -------------------------
block/blk-mq.c | 43 +++++++++++++++++++++++++++--
block/blk-sysfs.c | 5 ----
block/blk.h | 3 ++
block/bsg-lib.c | 4 +--
block/genhd.c | 23 ++++++++-------
drivers/block/ataflop.c | 1 -
drivers/block/loop.c | 1 -
drivers/block/mtip32xx/mtip32xx.c | 2 --
drivers/block/rnbd/rnbd-clt.c | 2 +-
drivers/block/sx8.c | 4 +--
drivers/block/virtio_blk.c | 1 -
drivers/block/z2ram.c | 1 -
drivers/cdrom/gdrom.c | 1 -
drivers/memstick/core/ms_block.c | 1 -
drivers/memstick/core/mspro_block.c | 1 -
drivers/mmc/core/block.c | 1 -
drivers/mmc/core/queue.c | 1 -
drivers/nvme/host/apple.c | 2 +-
drivers/nvme/host/core.c | 1 -
drivers/nvme/host/fc.c | 12 ++++----
drivers/nvme/host/pci.c | 2 +-
drivers/nvme/host/rdma.c | 12 ++++----
drivers/nvme/host/tcp.c | 12 ++++----
drivers/nvme/target/loop.c | 12 ++++----
drivers/s390/block/dasd.c | 2 +-
drivers/s390/block/dasd_genhd.c | 4 +--
drivers/scsi/scsi_lib.c | 6 ++--
drivers/scsi/scsi_sysfs.c | 2 +-
drivers/scsi/sd.c | 4 +--
drivers/scsi/sr.c | 4 +--
drivers/ufs/core/ufshcd.c | 4 +--
include/linux/blk-mq.h | 3 ++
include/linux/blkdev.h | 4 +--
34 files changed, 105 insertions(+), 113 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index b8083decc07f..7743c68177e8 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -284,43 +284,6 @@ void blk_queue_start_drain(struct request_queue *q)
wake_up_all(&q->mq_freeze_wq);
}

-/**
- * blk_cleanup_queue - shutdown a request queue
- * @q: request queue to shutdown
- *
- * Mark @q DYING, drain all pending requests, mark @q DEAD, destroy and
- * put it. All future requests will be failed immediately with -ENODEV.
- *
- * Context: can sleep
- */
-void blk_cleanup_queue(struct request_queue *q)
-{
- /* cannot be called from atomic context */
- might_sleep();
-
- WARN_ON_ONCE(blk_queue_registered(q));
-
- /* mark @q DYING, no new request or merges will be allowed afterwards */
- blk_queue_flag_set(QUEUE_FLAG_DYING, q);
- blk_queue_start_drain(q);
-
- /*
- * Drain all requests queued before DYING marking. Set DEAD flag to
- * prevent that blk_mq_run_hw_queues() accesses the hardware queues
- * after draining finished.
- */
- blk_freeze_queue(q);
- blk_sync_queue(q);
- if (queue_is_mq(q)) {
- blk_mq_cancel_work_sync(q);
- blk_mq_exit_queue(q);
- }
-
- /* @q is and will stay empty, shutdown and put */
- blk_put_queue(q);
-}
-EXPORT_SYMBOL(blk_cleanup_queue);
-
/**
* blk_queue_enter() - try to increase q->q_usage_counter
* @q: request queue pointer
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 0a299941c622..6e22700dd6cf 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3896,7 +3896,7 @@ static struct request_queue *blk_mq_init_queue_data(struct blk_mq_tag_set *set,
q->queuedata = queuedata;
ret = blk_mq_init_allocated_queue(set, q);
if (ret) {
- blk_cleanup_queue(q);
+ blk_put_queue(q);
return ERR_PTR(ret);
}
return q;
@@ -3908,6 +3908,35 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
}
EXPORT_SYMBOL(blk_mq_init_queue);

+/**
+ * blk_mq_destroy_queue - shutdown a request queue
+ * @q: request queue to shutdown
+ *
+ * This shuts down a request queue allocated by blk_mq_init_queue() and drops
+ * the initial reference. All future requests will failed with -ENODEV.
+ *
+ * Context: can sleep
+ */
+void blk_mq_destroy_queue(struct request_queue *q)
+{
+ WARN_ON_ONCE(!queue_is_mq(q));
+ WARN_ON_ONCE(blk_queue_registered(q));
+
+ might_sleep();
+
+ blk_queue_flag_set(QUEUE_FLAG_DYING, q);
+ blk_queue_start_drain(q);
+ blk_freeze_queue(q);
+
+ blk_sync_queue(q);
+ blk_mq_cancel_work_sync(q);
+ blk_mq_exit_queue(q);
+
+ /* @q is and will stay empty, shutdown and put */
+ blk_put_queue(q);
+}
+EXPORT_SYMBOL(blk_mq_destroy_queue);
+
struct gendisk *__blk_mq_alloc_disk(struct blk_mq_tag_set *set, void *queuedata,
struct lock_class_key *lkclass)
{
@@ -3920,13 +3949,23 @@ struct gendisk *__blk_mq_alloc_disk(struct blk_mq_tag_set *set, void *queuedata,

disk = __alloc_disk_node(q, set->numa_node, lkclass);
if (!disk) {
- blk_cleanup_queue(q);
+ blk_put_queue(q);
return ERR_PTR(-ENOMEM);
}
+ set_bit(GD_OWNS_QUEUE, &disk->state);
return disk;
}
EXPORT_SYMBOL(__blk_mq_alloc_disk);

+struct gendisk *blk_mq_alloc_disk_for_queue(struct request_queue *q,
+ struct lock_class_key *lkclass)
+{
+ if (!blk_get_queue(q))
+ return NULL;
+ return __alloc_disk_node(q, NUMA_NO_NODE, lkclass);
+}
+EXPORT_SYMBOL(blk_mq_alloc_disk_for_queue);
+
static struct blk_mq_hw_ctx *blk_mq_alloc_and_init_hctx(
struct blk_mq_tag_set *set, struct request_queue *q,
int hctx_idx, int node)
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 9b905e9443e4..84d7f8701567 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -748,11 +748,6 @@ static void blk_free_queue_rcu(struct rcu_head *rcu_head)
* decremented with blk_put_queue(). Once the refcount reaches 0 this function
* is called.
*
- * For drivers that have a request_queue on a gendisk and added with
- * __device_add_disk() the refcount to request_queue will reach 0 with
- * the last put_disk() called by the driver. For drivers which don't use
- * __device_add_disk() this happens with blk_cleanup_queue().
- *
* Drivers exist which depend on the release of the request_queue to be
* synchronous, it should not be deferred.
*
diff --git a/block/blk.h b/block/blk.h
index 434017701403..0d6668663ab5 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -411,6 +411,9 @@ int bdev_resize_partition(struct gendisk *disk, int partno, sector_t start,
sector_t length);
void blk_drop_partitions(struct gendisk *disk);

+struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id,
+ struct lock_class_key *lkclass);
+
int bio_add_hw_page(struct request_queue *q, struct bio *bio,
struct page *page, unsigned int len, unsigned int offset,
unsigned int max_sectors, bool *same_page);
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index acfe1357bf6c..fd4cd5e68282 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -324,7 +324,7 @@ void bsg_remove_queue(struct request_queue *q)
container_of(q->tag_set, struct bsg_set, tag_set);

bsg_unregister_queue(bset->bd);
- blk_cleanup_queue(q);
+ blk_mq_destroy_queue(q);
blk_mq_free_tag_set(&bset->tag_set);
kfree(bset);
}
@@ -399,7 +399,7 @@ struct request_queue *bsg_setup_queue(struct device *dev, const char *name,

return q;
out_cleanup_queue:
- blk_cleanup_queue(q);
+ blk_mq_destroy_queue(q);
out_queue:
blk_mq_free_tag_set(set);
out_tag_set:
diff --git a/block/genhd.c b/block/genhd.c
index 278227ba1d53..4d15f828c449 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -617,6 +617,8 @@ void del_gendisk(struct gendisk *disk)
* Fail any new I/O.
*/
set_bit(GD_DEAD, &disk->state);
+ if (test_bit(GD_OWNS_QUEUE, &disk->state))
+ blk_queue_flag_set(QUEUE_FLAG_DYING, q);
set_capacity(disk, 0);

/*
@@ -663,11 +665,16 @@ void del_gendisk(struct gendisk *disk)
blk_mq_unquiesce_queue(q);

/*
- * Allow using passthrough request again after the queue is torn down.
+ * If the disk does not own the queue, allow using passthrough requests
+ * again. Else leave the queue frozen to fail all I/O.
*/
- blk_queue_flag_clear(QUEUE_FLAG_INIT_DONE, q);
- __blk_mq_unfreeze_queue(q, true);
-
+ if (!test_bit(GD_OWNS_QUEUE, &disk->state)) {
+ blk_queue_flag_clear(QUEUE_FLAG_INIT_DONE, q);
+ __blk_mq_unfreeze_queue(q, true);
+ } else {
+ if (queue_is_mq(q))
+ blk_mq_exit_queue(q);
+ }
}
EXPORT_SYMBOL(del_gendisk);

@@ -1338,9 +1345,6 @@ struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id,
{
struct gendisk *disk;

- if (!blk_get_queue(q))
- return NULL;
-
disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id);
if (!disk)
goto out_put_queue;
@@ -1391,7 +1395,6 @@ struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id,
blk_put_queue(q);
return NULL;
}
-EXPORT_SYMBOL(__alloc_disk_node);

struct gendisk *__blk_alloc_disk(int node, struct lock_class_key *lkclass)
{
@@ -1404,9 +1407,10 @@ struct gendisk *__blk_alloc_disk(int node, struct lock_class_key *lkclass)

disk = __alloc_disk_node(q, node, lkclass);
if (!disk) {
- blk_cleanup_queue(q);
+ blk_put_queue(q);
return NULL;
}
+ set_bit(GD_OWNS_QUEUE, &disk->state);
return disk;
}
EXPORT_SYMBOL(__blk_alloc_disk);
@@ -1439,7 +1443,6 @@ EXPORT_SYMBOL(put_disk);
*/
void blk_cleanup_disk(struct gendisk *disk)
{
- blk_cleanup_queue(disk->queue);
put_disk(disk);
}
EXPORT_SYMBOL(blk_cleanup_disk);
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index e232cc4fd444..c6e41ee18aaa 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -2045,7 +2045,6 @@ static void atari_floppy_cleanup(void)
if (!unit[i].disk[type])
continue;
del_gendisk(unit[i].disk[type]);
- blk_cleanup_queue(unit[i].disk[type]->queue);
put_disk(unit[i].disk[type]);
}
blk_mq_free_tag_set(&unit[i].tag_set);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index a59910ef948e..1c036ef686fb 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -2062,7 +2062,6 @@ static void loop_remove(struct loop_device *lo)
{
/* Make this loop device unreachable from pathname. */
del_gendisk(lo->lo_disk);
- blk_cleanup_queue(lo->lo_disk->queue);
blk_mq_free_tag_set(&lo->tag_set);

mutex_lock(&loop_ctl_mutex);
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 6699e4b2f7f4..06994a35acc7 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3677,7 +3677,6 @@ static int mtip_block_shutdown(struct driver_data *dd)
if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag))
del_gendisk(dd->disk);

- blk_cleanup_queue(dd->queue);
blk_mq_free_tag_set(&dd->tags);
put_disk(dd->disk);
return 0;
@@ -4040,7 +4039,6 @@ static void mtip_pci_remove(struct pci_dev *pdev)
dev_info(&dd->pdev->dev, "device %s surprise removal\n",
dd->disk->disk_name);

- blk_cleanup_queue(dd->queue);
blk_mq_free_tag_set(&dd->tags);

/* De-initialize the protocol layer. */
diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
index 409c76b81aed..a4470374f54f 100644
--- a/drivers/block/rnbd/rnbd-clt.c
+++ b/drivers/block/rnbd/rnbd-clt.c
@@ -1755,7 +1755,7 @@ static void rnbd_destroy_sessions(void)
list_for_each_entry_safe(dev, tn, &sess->devs_list, list) {
/*
* Here unmap happens in parallel for only one reason:
- * blk_cleanup_queue() takes around half a second, so
+ * del_gendisk() takes around half a second, so
* on huge amount of devices the whole module unload
* procedure takes minutes.
*/
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 63b4f6431d2e..75057dbbcfbe 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -1536,7 +1536,7 @@ static int carm_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
clear_bit(0, &carm_major_alloc);
else if (host->major == 161)
clear_bit(1, &carm_major_alloc);
- blk_cleanup_queue(host->oob_q);
+ blk_mq_destroy_queue(host->oob_q);
blk_mq_free_tag_set(&host->tag_set);
err_out_dma_free:
dma_free_coherent(&pdev->dev, CARM_SHM_SIZE, host->shm, host->shm_dma);
@@ -1570,7 +1570,7 @@ static void carm_remove_one (struct pci_dev *pdev)
clear_bit(0, &carm_major_alloc);
else if (host->major == 161)
clear_bit(1, &carm_major_alloc);
- blk_cleanup_queue(host->oob_q);
+ blk_mq_destroy_queue(host->oob_q);
blk_mq_free_tag_set(&host->tag_set);
dma_free_coherent(&pdev->dev, CARM_SHM_SIZE, host->shm, host->shm_dma);
iounmap(host->mmio);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index d756423e0059..59d6d5faf739 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1107,7 +1107,6 @@ static void virtblk_remove(struct virtio_device *vdev)
flush_work(&vblk->config_work);

del_gendisk(vblk->disk);
- blk_cleanup_queue(vblk->disk->queue);
blk_mq_free_tag_set(&vblk->tag_set);

mutex_lock(&vblk->vdev_mutex);
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index 7a6ed83481b8..18ad43d9933e 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -384,7 +384,6 @@ static void __exit z2_exit(void)

for (i = 0; i < Z2MINOR_COUNT; i++) {
del_gendisk(z2ram_gendisk[i]);
- blk_cleanup_queue(z2ram_gendisk[i]->queue);
put_disk(z2ram_gendisk[i]);
}
blk_mq_free_tag_set(&tag_set);
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 8e78b37d0f6a..f4cc90ea6198 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -831,7 +831,6 @@ static int probe_gdrom(struct platform_device *devptr)

static int remove_gdrom(struct platform_device *devptr)
{
- blk_cleanup_queue(gd.gdrom_rq);
blk_mq_free_tag_set(&gd.tag_set);
free_irq(HW_EVENT_GDROM_CMD, &gd);
free_irq(HW_EVENT_GDROM_DMA, &gd);
diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index f8fdf88fb240..ecbc46714e68 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -2188,7 +2188,6 @@ static void msb_remove(struct memstick_dev *card)

/* Remove the disk */
del_gendisk(msb->disk);
- blk_cleanup_queue(msb->queue);
blk_mq_free_tag_set(&msb->tag_set);
msb->queue = NULL;

diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index 725ba74ded30..72e91c06c618 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -1294,7 +1294,6 @@ static void mspro_block_remove(struct memstick_dev *card)
del_gendisk(msb->disk);
dev_dbg(&card->dev, "mspro block remove\n");

- blk_cleanup_queue(msb->queue);
blk_mq_free_tag_set(&msb->tag_set);
msb->queue = NULL;

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 912a398a9a76..2f89ae55c177 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2509,7 +2509,6 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
return md;

err_cleanup_queue:
- blk_cleanup_queue(md->disk->queue);
blk_mq_free_tag_set(&md->queue.tag_set);
err_kfree:
kfree(md);
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index fa5324ceeebe..f824cfdab75a 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -494,7 +494,6 @@ void mmc_cleanup_queue(struct mmc_queue *mq)
if (blk_queue_quiesced(q))
blk_mq_unquiesce_queue(q);

- blk_cleanup_queue(q);
blk_mq_free_tag_set(&mq->tag_set);

/*
diff --git a/drivers/nvme/host/apple.c b/drivers/nvme/host/apple.c
index d702d7d60235..2d23b7d41f7e 100644
--- a/drivers/nvme/host/apple.c
+++ b/drivers/nvme/host/apple.c
@@ -1502,7 +1502,7 @@ static int apple_nvme_probe(struct platform_device *pdev)

if (!blk_get_queue(anv->ctrl.admin_q)) {
nvme_start_admin_queue(&anv->ctrl);
- blk_cleanup_queue(anv->ctrl.admin_q);
+ blk_mq_destroy_queue(anv->ctrl.admin_q);
anv->ctrl.admin_q = NULL;
ret = -ENODEV;
goto put_dev;
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 2f965356f345..6d76fc608b74 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4105,7 +4105,6 @@ static void nvme_ns_remove(struct nvme_ns *ns)
if (!nvme_ns_head_multipath(ns->head))
nvme_cdev_del(&ns->cdev, &ns->cdev_device);
del_gendisk(ns->disk);
- blk_cleanup_queue(ns->queue);

down_write(&ns->ctrl->namespaces_rwsem);
list_del_init(&ns->list);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 4aff83b1b0c0..9a5ce70d7f21 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2392,7 +2392,7 @@ nvme_fc_ctrl_free(struct kref *ref)
unsigned long flags;

if (ctrl->ctrl.tagset) {
- blk_cleanup_queue(ctrl->ctrl.connect_q);
+ blk_mq_destroy_queue(ctrl->ctrl.connect_q);
blk_mq_free_tag_set(&ctrl->tag_set);
}

@@ -2402,8 +2402,8 @@ nvme_fc_ctrl_free(struct kref *ref)
spin_unlock_irqrestore(&ctrl->rport->lock, flags);

nvme_start_admin_queue(&ctrl->ctrl);
- blk_cleanup_queue(ctrl->ctrl.admin_q);
- blk_cleanup_queue(ctrl->ctrl.fabrics_q);
+ blk_mq_destroy_queue(ctrl->ctrl.admin_q);
+ blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
blk_mq_free_tag_set(&ctrl->admin_tag_set);

kfree(ctrl->queues);
@@ -2953,7 +2953,7 @@ nvme_fc_create_io_queues(struct nvme_fc_ctrl *ctrl)
out_delete_hw_queues:
nvme_fc_delete_hw_io_queues(ctrl);
out_cleanup_blk_queue:
- blk_cleanup_queue(ctrl->ctrl.connect_q);
+ blk_mq_destroy_queue(ctrl->ctrl.connect_q);
out_free_tag_set:
blk_mq_free_tag_set(&ctrl->tag_set);
nvme_fc_free_io_queues(ctrl);
@@ -3642,9 +3642,9 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
return ERR_PTR(-EIO);

out_cleanup_admin_q:
- blk_cleanup_queue(ctrl->ctrl.admin_q);
+ blk_mq_destroy_queue(ctrl->ctrl.admin_q);
out_cleanup_fabrics_q:
- blk_cleanup_queue(ctrl->ctrl.fabrics_q);
+ blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
out_free_admin_tag_set:
blk_mq_free_tag_set(&ctrl->admin_tag_set);
out_free_queues:
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 9f6614f7dbeb..3516678d3754 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1760,7 +1760,7 @@ static void nvme_dev_remove_admin(struct nvme_dev *dev)
* queue to flush these to completion.
*/
nvme_start_admin_queue(&dev->ctrl);
- blk_cleanup_queue(dev->ctrl.admin_q);
+ blk_mq_destroy_queue(dev->ctrl.admin_q);
blk_mq_free_tag_set(&dev->admin_tagset);
}
}
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 46c2dcf72f7e..240024dd5d85 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -840,8 +840,8 @@ static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl,
bool remove)
{
if (remove) {
- blk_cleanup_queue(ctrl->ctrl.admin_q);
- blk_cleanup_queue(ctrl->ctrl.fabrics_q);
+ blk_mq_destroy_queue(ctrl->ctrl.admin_q);
+ blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
blk_mq_free_tag_set(ctrl->ctrl.admin_tagset);
}
if (ctrl->async_event_sqe.data) {
@@ -935,10 +935,10 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
nvme_cancel_admin_tagset(&ctrl->ctrl);
out_cleanup_queue:
if (new)
- blk_cleanup_queue(ctrl->ctrl.admin_q);
+ blk_mq_destroy_queue(ctrl->ctrl.admin_q);
out_cleanup_fabrics_q:
if (new)
- blk_cleanup_queue(ctrl->ctrl.fabrics_q);
+ blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
out_free_tagset:
if (new)
blk_mq_free_tag_set(ctrl->ctrl.admin_tagset);
@@ -957,7 +957,7 @@ static void nvme_rdma_destroy_io_queues(struct nvme_rdma_ctrl *ctrl,
bool remove)
{
if (remove) {
- blk_cleanup_queue(ctrl->ctrl.connect_q);
+ blk_mq_destroy_queue(ctrl->ctrl.connect_q);
blk_mq_free_tag_set(ctrl->ctrl.tagset);
}
nvme_rdma_free_io_queues(ctrl);
@@ -1012,7 +1012,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
out_cleanup_connect_q:
nvme_cancel_tagset(&ctrl->ctrl);
if (new)
- blk_cleanup_queue(ctrl->ctrl.connect_q);
+ blk_mq_destroy_queue(ctrl->ctrl.connect_q);
out_free_tag_set:
if (new)
blk_mq_free_tag_set(ctrl->ctrl.tagset);
diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index daa0e160e121..d7e5bbdb9b75 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1881,7 +1881,7 @@ static void nvme_tcp_destroy_io_queues(struct nvme_ctrl *ctrl, bool remove)
{
nvme_tcp_stop_io_queues(ctrl);
if (remove) {
- blk_cleanup_queue(ctrl->connect_q);
+ blk_mq_destroy_queue(ctrl->connect_q);
blk_mq_free_tag_set(ctrl->tagset);
}
nvme_tcp_free_io_queues(ctrl);
@@ -1936,7 +1936,7 @@ static int nvme_tcp_configure_io_queues(struct nvme_ctrl *ctrl, bool new)
out_cleanup_connect_q:
nvme_cancel_tagset(ctrl);
if (new)
- blk_cleanup_queue(ctrl->connect_q);
+ blk_mq_destroy_queue(ctrl->connect_q);
out_free_tag_set:
if (new)
blk_mq_free_tag_set(ctrl->tagset);
@@ -1949,8 +1949,8 @@ static void nvme_tcp_destroy_admin_queue(struct nvme_ctrl *ctrl, bool remove)
{
nvme_tcp_stop_queue(ctrl, 0);
if (remove) {
- blk_cleanup_queue(ctrl->admin_q);
- blk_cleanup_queue(ctrl->fabrics_q);
+ blk_mq_destroy_queue(ctrl->admin_q);
+ blk_mq_destroy_queue(ctrl->fabrics_q);
blk_mq_free_tag_set(ctrl->admin_tagset);
}
nvme_tcp_free_admin_queue(ctrl);
@@ -2008,10 +2008,10 @@ static int nvme_tcp_configure_admin_queue(struct nvme_ctrl *ctrl, bool new)
nvme_cancel_admin_tagset(ctrl);
out_cleanup_queue:
if (new)
- blk_cleanup_queue(ctrl->admin_q);
+ blk_mq_destroy_queue(ctrl->admin_q);
out_cleanup_fabrics_q:
if (new)
- blk_cleanup_queue(ctrl->fabrics_q);
+ blk_mq_destroy_queue(ctrl->fabrics_q);
out_free_tagset:
if (new)
blk_mq_free_tag_set(ctrl->admin_tagset);
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 59024af2da2e..0f5c77e22a0a 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -266,8 +266,8 @@ static void nvme_loop_destroy_admin_queue(struct nvme_loop_ctrl *ctrl)
if (!test_and_clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags))
return;
nvmet_sq_destroy(&ctrl->queues[0].nvme_sq);
- blk_cleanup_queue(ctrl->ctrl.admin_q);
- blk_cleanup_queue(ctrl->ctrl.fabrics_q);
+ blk_mq_destroy_queue(ctrl->ctrl.admin_q);
+ blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
blk_mq_free_tag_set(&ctrl->admin_tag_set);
}

@@ -283,7 +283,7 @@ static void nvme_loop_free_ctrl(struct nvme_ctrl *nctrl)
mutex_unlock(&nvme_loop_ctrl_mutex);

if (nctrl->tagset) {
- blk_cleanup_queue(ctrl->ctrl.connect_q);
+ blk_mq_destroy_queue(ctrl->ctrl.connect_q);
blk_mq_free_tag_set(&ctrl->tag_set);
}
kfree(ctrl->queues);
@@ -410,9 +410,9 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)

out_cleanup_queue:
clear_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[0].flags);
- blk_cleanup_queue(ctrl->ctrl.admin_q);
+ blk_mq_destroy_queue(ctrl->ctrl.admin_q);
out_cleanup_fabrics_q:
- blk_cleanup_queue(ctrl->ctrl.fabrics_q);
+ blk_mq_destroy_queue(ctrl->ctrl.fabrics_q);
out_free_tagset:
blk_mq_free_tag_set(&ctrl->admin_tag_set);
out_free_sq:
@@ -554,7 +554,7 @@ static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl)
return 0;

out_cleanup_connect_q:
- blk_cleanup_queue(ctrl->ctrl.connect_q);
+ blk_mq_destroy_queue(ctrl->ctrl.connect_q);
out_free_tagset:
blk_mq_free_tag_set(&ctrl->tag_set);
out_destroy_queues:
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index ba6d78789660..e8489331f12b 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -3280,7 +3280,7 @@ static int dasd_alloc_queue(struct dasd_block *block)
static void dasd_free_queue(struct dasd_block *block)
{
if (block->request_queue) {
- blk_cleanup_queue(block->request_queue);
+ blk_mq_destroy_queue(block->request_queue);
blk_mq_free_tag_set(&block->tag_set);
block->request_queue = NULL;
}
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index a7a33ebf4bbe..5a83f0a39901 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -41,8 +41,8 @@ int dasd_gendisk_alloc(struct dasd_block *block)
if (base->devindex >= DASD_PER_MAJOR)
return -EBUSY;

- gdp = __alloc_disk_node(block->request_queue, NUMA_NO_NODE,
- &dasd_bio_compl_lkclass);
+ gdp = blk_mq_alloc_disk_for_queue(block->request_queue,
+ &dasd_bio_compl_lkclass);
if (!gdp)
return -ENOMEM;

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f5c876d03c1a..0a267d6e2f7c 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -168,7 +168,7 @@ static void __scsi_queue_insert(struct scsi_cmnd *cmd, int reason, bool unbusy)
* Requeue this command. It will go before all other commands
* that are already in the queue. Schedule requeue work under
* lock such that the kblockd_schedule_work() call happens
- * before blk_cleanup_queue() finishes.
+ * before blk_mq_destroy_queue() finishes.
*/
cmd->result = 0;

@@ -429,9 +429,9 @@ static void scsi_starved_list_run(struct Scsi_Host *shost)
* it and the queue. Mitigate by taking a reference to the
* queue and never touching the sdev again after we drop the
* host lock. Note: if __scsi_remove_device() invokes
- * blk_cleanup_queue() before the queue is run from this
+ * blk_mq_destroy_queue() before the queue is run from this
* function then blk_run_queue() will return immediately since
- * blk_cleanup_queue() marks the queue with QUEUE_FLAG_DYING.
+ * blk_mq_destroy_queue() marks the queue with QUEUE_FLAG_DYING.
*/
slq = sdev->request_queue;
if (!blk_get_queue(slq))
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 43949798a2e4..aa70d9282161 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1475,7 +1475,7 @@ void __scsi_remove_device(struct scsi_device *sdev)
scsi_device_set_state(sdev, SDEV_DEL);
mutex_unlock(&sdev->state_mutex);

- blk_cleanup_queue(sdev->request_queue);
+ blk_mq_destroy_queue(sdev->request_queue);
cancel_work_sync(&sdev->requeue_work);

if (sdev->host->hostt->slave_destroy)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a1a2ac09066f..cb587e488601 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -3440,8 +3440,8 @@ static int sd_probe(struct device *dev)
if (!sdkp)
goto out;

- gd = __alloc_disk_node(sdp->request_queue, NUMA_NO_NODE,
- &sd_bio_compl_lkclass);
+ gd = blk_mq_alloc_disk_for_queue(sdp->request_queue,
+ &sd_bio_compl_lkclass);
if (!gd)
goto out_free;

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 32d3b8274f14..a278b739d0c5 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -624,8 +624,8 @@ static int sr_probe(struct device *dev)
if (!cd)
goto fail;

- disk = __alloc_disk_node(sdev->request_queue, NUMA_NO_NODE,
- &sr_bio_compl_lkclass);
+ disk = blk_mq_alloc_disk_for_queue(sdev->request_queue,
+ &sr_bio_compl_lkclass);
if (!disk)
goto fail_free;
mutex_init(&cd->lock);
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 829da9cb14a8..55bb0d0422d5 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -9519,7 +9519,7 @@ void ufshcd_remove(struct ufs_hba *hba)
ufs_bsg_remove(hba);
ufshpb_remove(hba);
ufs_sysfs_remove_nodes(hba->dev);
- blk_cleanup_queue(hba->tmf_queue);
+ blk_mq_destroy_queue(hba->tmf_queue);
blk_mq_free_tag_set(&hba->tmf_tag_set);
scsi_remove_host(hba->host);
/* disable interrupts */
@@ -9815,7 +9815,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
return 0;

free_tmf_queue:
- blk_cleanup_queue(hba->tmf_queue);
+ blk_mq_destroy_queue(hba->tmf_queue);
free_tmf_tag_set:
blk_mq_free_tag_set(&hba->tmf_tag_set);
out_remove_scsi_host:
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index e2d9daf7e8dd..0fd96e92c6c6 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -686,10 +686,13 @@ struct gendisk *__blk_mq_alloc_disk(struct blk_mq_tag_set *set, void *queuedata,
\
__blk_mq_alloc_disk(set, queuedata, &__key); \
})
+struct gendisk *blk_mq_alloc_disk_for_queue(struct request_queue *q,
+ struct lock_class_key *lkclass);
struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *);
int blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
struct request_queue *q);
void blk_mq_unregister_dev(struct device *, struct request_queue *);
+void blk_mq_destroy_queue(struct request_queue *);

int blk_mq_alloc_tag_set(struct blk_mq_tag_set *set);
int blk_mq_alloc_sq_tag_set(struct blk_mq_tag_set *set,
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 76f77eed58c3..83eb8869a8c9 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -148,6 +148,7 @@ struct gendisk {
#define GD_NATIVE_CAPACITY 3
#define GD_ADDED 4
#define GD_SUPPRESS_PART_SCAN 5
+#define GD_OWNS_QUEUE 6

struct mutex open_mutex; /* open/close mutex */
unsigned open_partitions; /* number of open partitions */
@@ -810,8 +811,6 @@ static inline u64 sb_bdev_nr_blocks(struct super_block *sb)

int bdev_disk_changed(struct gendisk *disk, bool invalidate);

-struct gendisk *__alloc_disk_node(struct request_queue *q, int node_id,
- struct lock_class_key *lkclass);
void put_disk(struct gendisk *disk);
struct gendisk *__blk_alloc_disk(int node, struct lock_class_key *lkclass);

@@ -953,7 +952,6 @@ static inline unsigned int blk_max_size_offset(struct request_queue *q,
/*
* Access functions for manipulating queue properties
*/
-extern void blk_cleanup_queue(struct request_queue *);
void blk_queue_bounce_limit(struct request_queue *q, enum blk_bounce limit);
extern void blk_queue_max_hw_sectors(struct request_queue *, unsigned int);
extern void blk_queue_chunk_sectors(struct request_queue *, unsigned int);
--
2.35.1