Merge tag 'for-5.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - Improve scalability of DM's device hash by switching to rbtree

 - Extend DM ioctl's DM_LIST_DEVICES_CMD handling to include UUID and
   allow filtering based on name or UUID prefix.

 - Various small fixes for typos, warnings, unused function, or
   needlessly exported interfaces.

 - Remove needless request_queue NULL pointer checks in DM thin and
   cache targets.

 - Remove unnecessary loop in DM core's __split_and_process_bio().

 - Remove DM core's dm_vcalloc() and just use kvcalloc or kvmalloc_array
   instead (depending whether zeroing is useful).

 - Fix request-based DM's double free of blk_mq_tag_set in device remove
   after table load fails.

 - Improve DM persistent data performance on non-x86 by fixing packed
   structs to have a stated alignment. Also remove needless extra work
   from redundant calls to sm_disk_get_nr_free() and a paranoid BUG_ON()
   that caused duplicate checksum calculation.

 - Fix missing goto in DM integrity's bitmap_flush_interval error
   handling.

 - Add "reset_recalculate" feature flag to DM integrity.

 - Improve DM integrity by leveraging discard support to avoid needless
   re-writing of metadata and also use discard support to improve hash
   recalculation.

 - Fix race with DM raid target's reshape and MD raid4/5/6 resync that
   resulted in inconsistant reshape state during table reloads.

 - Update DM raid target to temove unnecessary discard limits for raid0
   and raid10 now that MD has optimized discard handling for both raid
   levels.

* tag 'for-5.13/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (26 commits)
  dm raid: remove unnecessary discard limits for raid0 and raid10
  dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
  dm integrity: use discard support when recalculating
  dm integrity: increase RECALC_SECTORS to improve recalculate speed
  dm integrity: don't re-write metadata if discarding same blocks
  dm raid: fix inconclusive reshape layout on fast raid4/5/6 table reload sequences
  dm raid: fix fall-through warning in rs_check_takeover() for Clang
  dm clone metadata: remove unused function
  dm integrity: fix missing goto in bitmap_flush_interval error handling
  dm: replace dm_vcalloc()
  dm space map common: fix division bug in sm_ll_find_free_block()
  dm persistent data: packed struct should have an aligned() attribute too
  dm btree spine: remove paranoid node_check call in node_prep_for_write()
  dm space map disk: remove redundant calls to sm_disk_get_nr_free()
  dm integrity: add the "reset_recalculate" feature flag
  dm persistent data: remove unused return from exit_shadow_spine()
  dm cache: remove needless request_queue NULL pointer checks
  dm thin: remove needless request_queue NULL pointer check
  dm: unexport dm_{get,put}_table_device
  dm ebs: fix a few typos
  ...

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