Merge tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - DM verity fix for crash due to using vmalloc'd buffers with the
   asynchronous crypto hadsh API.

 - Fix to both DM crypt and DM integrity targets to discontinue using
   CRYPTO_TFM_REQ_MAY_SLEEP because its use of GFP_KERNEL can lead to
   deadlock by recursing back into a filesystem.

 - Various DM raid fixes related to reshape and rebuild races.

 - Fix for DM thin-provisioning to avoid data corruption that was a
   side-effect of needing to abort DM thin metadata transaction due to
   running out of metadata space. Fix is to reserve a small amount of
   metadata space so that once it is used the DM thin-pool can finish
   its active transaction before switching to read-only mode.

* tag 'for-4.19/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm thin metadata: try to avoid ever aborting transactions
  dm raid: bump target version, update comments and documentation
  dm raid: fix RAID leg rebuild errors
  dm raid: fix rebuild of specific devices by updating superblock
  dm raid: fix stripe adding reshape deadlock
  dm raid: fix reshape race on small devices
  dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock
  dm verity: fix crash on bufio buffer that was allocated with vmalloc

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