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2c5555983b
linux/drivers/md
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Jan Kara 2c5555983b bcache: Fix bcache device claiming 
Commit 2736e8eeb0 ("block: use the holder as indication for exclusive
opens") introduced a change that blkdev_put() has to get exclusive
holder of the bdev as an argument. However it overlooked that
register_bdev() and register_cache() overwrite the bdev->bd_holder field
in the block device to point to the real owning object which was not
available at the time we called blkdev_get_by_path(). Messing with bdev
internals like this is a layering violation and it also causes
blkdev_put() to issue warning about mismatching holders.

Fix bcache to reopen the block device with appropriate holder once it is
available which also restores the behavior that multiple bcache caches
cannot claim the same device which was broken by commit 29499ab060
("bcache: don't pass a stack address to blkdev_get_by_path").

Fixes: 2736e8eeb0 ("block: use the holder as indication for exclusive opens")
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Kent Overstreet <kent.overstreet@linux.dev>
Acked-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20230622164658.12861-2-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-06-23 16:10:04 -06:00
..
bcache bcache: Fix bcache device claiming 2023-06-23 16:10:04 -06:00
persistent-data dm: add missing blank line after declarations/fix those 2023-02-14 14:23:07 -05:00
dm-audit.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-audit.h
dm-bio-prison-v1.c dm: improve hash_locks sizing and hash function 2023-03-30 15:57:51 -04:00
dm-bio-prison-v1.h dm bio prison v1: add dm_cell_key_has_valid_range 2023-03-30 15:57:51 -04:00
dm-bio-prison-v2.c dm: address space issues relative to switch/while/for/... 2023-02-14 14:23:06 -05:00
dm-bio-prison-v2.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-bio-record.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-bufio.c - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
dm-builtin.c dm: adjust EXPORT_SYMBOL() to follow functions immediately 2023-02-14 14:23:07 -05:00
dm-cache-background-tracker.c dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-background-tracker.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-block-types.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-cache-metadata.c mm: shrinkers: convert shrinker_rwsem to mutex 2023-03-28 16:20:17 -07:00
dm-cache-metadata.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-policy-internal.h dm: add missing empty lines 2023-02-14 14:23:06 -05:00
dm-cache-policy-smq.c dm: add missing empty lines 2023-02-14 14:23:06 -05:00
dm-cache-policy.c dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-policy.h dm: address indent/space issues 2023-02-14 14:23:06 -05:00
dm-cache-target.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-clone-metadata.c
dm-clone-metadata.h
dm-clone-target.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-core.h block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-crypt.c dm-crypt: use __bio_add_page to add single page to clone bio 2023-06-01 09:13:31 -06:00
dm-delay.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-dust.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-ebs-target.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-era-target.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-exception-store.c dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-exception-store.h dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-flakey.c dm flakey: add an "error_reads" option 2023-04-19 11:13:43 -04:00
dm-ima.c dm: avoid inline filenames 2023-02-14 14:23:07 -05:00
dm-ima.h dm: avoid inline filenames 2023-02-14 14:23:07 -05:00
dm-init.c dm: open code dm_get_dev_t in dm_init_init 2023-06-05 10:57:40 -06:00
dm-integrity.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-io-rewind.c dm: avoid void function return statements 2023-02-14 14:23:07 -05:00
dm-io-tracker.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-io.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-ioctl.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-kcopyd.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-linear.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-log-userspace-base.c dm: avoid void function return statements 2023-02-14 14:23:07 -05:00
dm-log-userspace-transfer.c dm: avoid split of quoted strings where possible 2023-02-14 14:23:07 -05:00
dm-log-userspace-transfer.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-log-writes.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-log.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-mpath.c dm: push error reporting down to dm_register_target() 2023-04-11 12:01:01 -04:00
dm-mpath.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-path-selector.c dm: adjust EXPORT_SYMBOL() to follow functions immediately 2023-02-14 14:23:07 -05:00
dm-path-selector.h dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-ps-historical-service-time.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-ps-io-affinity.c dm: address space issues relative to switch/while/for/... 2023-02-14 14:23:06 -05:00
dm-ps-queue-length.c dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-ps-round-robin.c dm: correct block comments format. 2023-02-14 14:23:06 -05:00
dm-ps-service-time.c dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-raid1.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-raid.c dm-raid: remove useless checking in raid_message() 2023-06-13 15:25:13 -07:00
dm-region-hash.c dm: correct block comments format. 2023-02-14 14:23:06 -05:00
dm-rq.c dm: avoid using symbolic permissions 2023-02-14 14:23:07 -05:00
dm-rq.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-snap-persistent.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-snap-transient.c dm: avoid split of quoted strings where possible 2023-02-14 14:23:07 -05:00
dm-snap.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-stats.c dm stats: check for and propagate alloc_percpu failure 2023-03-16 13:37:06 -04:00
dm-stats.h dm stats: check for and propagate alloc_percpu failure 2023-03-16 13:37:06 -04:00
dm-stripe.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-switch.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-sysfs.c dm sysfs: make kobj_type structure constant 2023-02-14 14:23:08 -05:00
dm-table.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-target.c dm: push error reporting down to dm_register_target() 2023-04-11 12:01:01 -04:00
dm-thin-metadata.c mm: shrinkers: convert shrinker_rwsem to mutex 2023-03-28 16:20:17 -07:00
dm-thin-metadata.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-thin.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-uevent.c dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-uevent.h dm: fix undue/missing spaces 2023-02-14 14:23:06 -05:00
dm-unstripe.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-verity-fec.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-verity-fec.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-verity-loadpin.c dm: verity-loadpin: Only trust verity targets with enforcement 2022-09-07 16:37:27 -07:00
dm-verity-target.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-verity-verify-sig.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-verity-verify-sig.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-verity.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-writecache.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-zero.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-zone.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-zoned-metadata.c dm: dm-zoned: use __bio_add_page for adding single metadata page 2023-05-31 09:50:02 -06:00
dm-zoned-reclaim.c
dm-zoned-target.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-zoned.h dm/dm-zoned: Use the enum req_op type 2022-07-14 12:14:31 -06:00
dm.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm.h block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
Kconfig Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-6.3 2023-03-15 12:18:07 -06:00
Makefile hardening updates for v5.20-rc1 2022-08-02 14:38:59 -07:00
md-autodetect.c init: improve the name_to_dev_t interface 2023-06-05 10:56:46 -06:00
md-bitmap.c md/md-bitmap: add a new helper to unplug bitmap asynchrously 2023-06-13 15:25:44 -07:00
md-bitmap.h md/md-bitmap: add a new helper to unplug bitmap asynchrously 2023-06-13 15:25:44 -07:00
md-cluster.c md: protect md_thread with rcu 2023-06-13 15:25:39 -07:00
md-cluster.h
md-faulty.c
md-linear.c md: add error_handlers for raid0 and linear 2023-04-13 22:20:24 -07:00
md-linear.h
md-multipath.c md: protect md_thread with rcu 2023-06-13 15:25:39 -07:00
md-multipath.h
md.c md: fix 'delete_mutex' deadlock 2023-06-23 09:41:47 -07:00
md.h md: fix 'delete_mutex' deadlock 2023-06-23 09:41:47 -07:00
raid0.c md: add error_handlers for raid0 and linear 2023-04-13 22:20:24 -07:00
raid0.h
raid1-10.c md/raid1-10: fix casting from randomized structure in raid1_submit_write() 2023-06-23 09:33:16 -07:00
raid1.c md/raid1-10: limit the number of plugged bio 2023-06-13 15:25:44 -07:00
raid1.h md: protect md_thread with rcu 2023-06-13 15:25:39 -07:00
raid5-cache.c md: protect md_thread with rcu 2023-06-13 15:25:39 -07:00
raid5-log.h md/raid5-ppl: Drop unused argument from ppl_handle_flush_request() 2022-08-02 17:14:31 -06:00
raid5-ppl.c md: raid5: use __bio_add_page to add single page to new bio 2023-05-31 09:50:02 -06:00
raid5.c md/raid5: don't start reshape when recovery or replace is in progress 2023-06-13 15:25:41 -07:00
raid5.h md: protect md_thread with rcu 2023-06-13 15:25:39 -07:00
raid10.c raid10: avoid spin_lock from fastpath from raid10_unplug() 2023-06-23 09:41:50 -07:00
raid10.h md: protect md_thread with rcu 2023-06-13 15:25:39 -07:00