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target destruction in DM targets: thin-pool, cache, integrity and
clone.
- Fix ABBA deadlocks in DM thin-pool and cache targets due to their
use of a bufio client (that has a shrinker whose locking can cause
the incorrect locking order).
- Fix DM cache target to set its needs_check flag after first aborting
the metadata (whereby using reset persistent-data objects to update
the superblock with, otherwise the superblock update could be
dropped due to aborting metadata). This was found with
code-inspection when comparing with the equivalent in DM thinp
code.
- Fix DM thin-pool's presume to continue resuming the device even if
the pool in is fail mode -- otherwise bios may never be failed up
the IO stack (which will prevent resetting the thin-pool target via
table reload)
- Fix DM thin-pool's metadata to use proper btree root (from previous
transaction) if metadata commit failed.
- Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to
wait for the specified device before continuing with its DM target
initialization.
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Merge tag 'for-6.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Fix use-after-free races due to missing resource cleanup during DM
target destruction in DM targets: thin-pool, cache, integrity and
clone.
- Fix ABBA deadlocks in DM thin-pool and cache targets due to their use
of a bufio client (that has a shrinker whose locking can cause the
incorrect locking order).
- Fix DM cache target to set its needs_check flag after first aborting
the metadata (whereby using reset persistent-data objects to update
the superblock with, otherwise the superblock update could be dropped
due to aborting metadata). This was found with code-inspection when
comparing with the equivalent in DM thinp code.
- Fix DM thin-pool's presume to continue resuming the device even if
the pool in is fail mode -- otherwise bios may never be failed up the
IO stack (which will prevent resetting the thin-pool target via table
reload)
- Fix DM thin-pool's metadata to use proper btree root (from previous
transaction) if metadata commit failed.
- Add 'waitfor' module param to DM module (dm_mod) to allow dm-init to
wait for the specified device before continuing with its DM target
initialization.
* tag 'for-6.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm thin: Use last transaction's pmd->root when commit failed
dm init: add dm-mod.waitfor to wait for asynchronously probed block devices
dm ioctl: fix a couple ioctl codes
dm ioctl: a small code cleanup in list_version_get_info
dm thin: resume even if in FAIL mode
dm cache: set needs_check flag after aborting metadata
dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort
dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata
dm integrity: Fix UAF in dm_integrity_dtr()
dm cache: Fix UAF in destroy()
dm clone: Fix UAF in clone_dtr()
dm thin: Fix UAF in run_timer_softirq()
8715c6d310