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linux/drivers/md
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Christoph Hellwig c2b4bb8cb3 block: fix locking for struct block_device size updates 
Two different callers use two different mutexes for updating the
block device size, which obviously doesn't help to actually protect
against concurrent updates from the different callers.  In addition
one of the locks, bd_mutex is rather prone to deadlocks with other
parts of the block stack that use it for high level synchronization.

Switch to using a new spinlock protecting just the size updates, as
that is all we need, and make sure everyone does the update through
the proper helper.

This fixes a bug reported with the nvme revalidating disks during a
hot removal operation, which can currently deadlock on bd_mutex.

Reported-by: Xianting Tian <xianting_tian@126.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-01 16:49:25 -06:00
..
bcache
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
persistent-data
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
dm-bio-prison-v1.c
dm bio prison: replace spin_lock_irqsave with spin_lock_irq
2019-11-05 14:53:03 -05:00
dm-bio-prison-v1.h
…
dm-bio-prison-v2.c
dm bio prison v2: use true/false for bool variable
2020-01-07 12:07:08 -05:00
dm-bio-prison-v2.h
…
dm-bio-record.h
dm bio record: save/restore bi_end_io and bi_integrity
2020-03-03 10:02:46 -05:00
dm-bufio.c
dm bufio: do buffer cleanup from a workqueue
2020-07-20 11:17:43 -04:00
dm-builtin.c
…
dm-cache-background-tracker.c
…
dm-cache-background-tracker.h
…
dm-cache-block-types.h
…
dm-cache-metadata.c
dm cache metadata: Fix loading discard bitset
2019-04-18 16:18:25 -04:00
dm-cache-metadata.h
…
dm-cache-policy-internal.h
…
dm-cache-policy-smq.c
…
dm-cache-policy.c
…
dm-cache-policy.h
…
dm-cache-target.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
dm-clone-metadata.c
dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()
2020-03-27 14:42:51 -04:00
dm-clone-metadata.h
dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()
2020-03-27 14:42:51 -04:00
dm-clone-target.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
dm-core.h
dm: disable DISCARD if the underlying storage no longer supports it
2019-04-04 15:33:59 -04:00
dm-crypt.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
dm-delay.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-dust.c
dm dust: add interface to list all badblocks
2020-07-20 11:17:41 -04:00
dm-ebs-target.c
dm ebs: Fix incorrect checking for REQ_OP_FLUSH
2020-08-04 16:01:40 -04:00
dm-era-target.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
dm-exception-store.c
…
dm-exception-store.h
- Improve DM snapshot target's scalability by using finer grained
2019-05-16 15:55:48 -07:00
dm-flakey.c
block: rework zone reporting
2019-11-12 19:12:07 -07:00
dm-historical-service-time.c
dm mpath: add Historical Service Time Path Selector
2020-05-15 10:29:36 -04:00
dm-init.c
dm init: Set file local variable static
2020-08-04 15:51:28 -04:00
dm-integrity.c
mm, treewide: rename kzfree() to kfree_sensitive()
2020-08-07 11:33:22 -07:00
dm-io.c
treewide: Remove uninitialized_var() usage
2020-07-16 12:35:15 -07:00
dm-ioctl.c
- DM multipath locking fixes around m->flags tests and improvements to
2020-08-07 13:08:09 -07:00
dm-kcopyd.c
dm kcopyd: always complete failed jobs
2019-08-15 15:57:39 -04:00
dm-linear.c
dm,dax: Add dax zero_page_range operation
2020-04-02 19:15:03 -07:00
dm-log-userspace-base.c
…
dm-log-userspace-transfer.c
…
dm-log-userspace-transfer.h
…
dm-log-writes.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-log.c
…
dm-mpath.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
dm mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-queue-length.c
dm mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-raid1.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-raid.c
- DM multipath locking fixes around m->flags tests and improvements to
2020-08-07 13:08:09 -07:00
dm-region-hash.c
…
dm-round-robin.c
…
dm-rq.c
- DM multipath locking fixes around m->flags tests and improvements to
2020-08-07 13:08:09 -07:00
dm-rq.h
dm: remove unused _rq_tio_cache and _rq_cache
2019-03-05 14:48:50 -05:00
dm-service-time.c
dm mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-snap-persistent.c
Remove uninitialized_var() macro for v5.9-rc1
2020-08-04 13:49:43 -07:00
dm-snap-transient.c
…
dm-snap.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-stats.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-stats.h
…
dm-stripe.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-switch.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-sysfs.c
…
dm-table.c
for-5.9/block-merge-20200804
2020-08-05 11:12:34 -07:00
dm-target.c
dm mpath: fix missing call of path selector type->end_io
2019-04-25 15:38:52 -04:00
dm-thin-metadata.c
dm thin metadata: fix lockdep complaint
2020-02-27 12:00:53 -05:00
dm-thin-metadata.h
dm thin metadata: Add support for a pre-commit callback
2019-12-05 17:05:24 -05:00
dm-thin.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
dm-uevent.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
dm-uevent.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
dm-unstripe.c
dm: Check for device sector overflow if CONFIG_LBDAF is not set
2018-12-18 09:02:26 -05:00
dm-verity-fec.c
dm verity fec: fix hash block number in verity_fec_decode
2020-04-16 16:16:38 -04:00
dm-verity-fec.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dm-verity-target.c
- DM multipath locking fixes around m->flags tests and improvements to
2020-08-07 13:08:09 -07:00
dm-verity-verify-sig.c
dm verity: add root hash pkcs#7 signature verification
2019-08-23 10:13:14 -04:00
dm-verity-verify-sig.h
dm verity: Fix compilation warning
2020-08-04 15:48:13 -04:00
dm-verity.h
dm verity: add "panic_on_corruption" error handling mode
2020-07-13 11:47:33 -04:00
dm-writecache.c
powerpc updates for 5.9
2020-08-07 10:33:50 -07:00
dm-zero.c
…
dm-zoned-metadata.c
dm zoned: Fix zone reclaim trigger
2020-07-08 12:21:53 -04:00
dm-zoned-reclaim.c
dm zoned: Fix zone reclaim trigger
2020-07-08 12:21:53 -04:00
dm-zoned-target.c
for-5.9/block-20200802
2020-08-03 11:57:03 -07:00
dm-zoned.h
dm zoned: select reclaim zone based on device index
2020-06-05 14:59:53 -04:00
dm.c
block: fix locking for struct block_device size updates
2020-09-01 16:49:25 -06:00
dm.h
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
Kconfig
Replace HTTP links with HTTPS ones: LVM
2020-07-05 14:28:27 -06:00
Makefile
md: move the early init autodetect code to drivers/md/
2020-07-16 15:34:47 +02:00
md-autodetect.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
md-bitmap.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
md-bitmap.h
…
md-cluster.c
md-cluster: Fix potential error pointer dereference in resize_bitmaps()
2020-08-05 17:07:48 -07:00
md-cluster.h
…
md-faulty.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
md-linear.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
md-linear.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00
md-multipath.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
md-multipath.h
…
md.c
block-5.9-2020-08-14
2020-08-15 20:36:42 -07:00
md.h
Merge branch 'hch.init_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-08-07 09:40:34 -07:00
raid0.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
raid0.h
md/raid0: avoid RAID0 data corruption due to layout confusion.
2019-09-13 13:10:05 -07:00
raid1-10.c
md: raid1-10: Unify r{1,10}bio_pool_free
2019-06-15 01:37:35 -06:00
raid1.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
raid1.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00
raid5-cache.c
raid5-cache: hold spinlock instead of mutex in r5c_journal_mode_show
2020-08-02 23:03:52 -07:00
raid5-log.h
raid5: set write hint for PPL
2019-03-12 10:15:18 -07:00
raid5-ppl.c
md/raid456: convert macro STRIPE_* to RAID5_STRIPE_*
2020-07-21 17:18:12 -07:00
raid5.c
block-5.9-2020-08-28
2020-08-28 16:38:29 -07:00
raid5.h
A set of locking fixes and updates:
2020-08-10 19:07:44 -07:00
raid10.c
for-5.9/drivers-20200803
2020-08-05 10:51:40 -07:00
raid10.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00