https://github.com/torvalds/linux
Revision 0e306952d7151afdaa16e9acf280a739d1fe7b29 authored by Linus Torvalds on 16 June 2023, 03:19:21 UTC, committed by Linus Torvalds on 16 June 2023, 03:19:21 UTC
Pull device mapper fixes from Mike Snitzer:

 - Fix DM thinp discard performance regression introduced during this
   merge window where DM core was splitting large discards every 128K
   (max_sectors_kb) rather than every 64M (discard_max_bytes).

 - Extend DM core LOCKFS fix, made during 6.4 merge, to also fix race
   between do_mount and dm's do_suspend (in addition to the earlier
   fix's do_mount race with dm's do_resume).

 - Fix DM thin metadata operations to first check if the thin-pool is in
   "fail_io" mode; otherwise UAF can occur.

 - Fix DM thinp's call to __blkdev_issue_discard to use GFP_NOIO rather
   than GFP_NOWAIT (__blkdev_issue_discard cannot handle NULL return
   from bio_alloc).

* tag 'for-6.4/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: use op specific max_sectors when splitting abnormal io
  dm thin: fix issue_discard to pass GFP_NOIO to __blkdev_issue_discard
  dm thin metadata: check fail_io before using data_sm
  dm: don't lock fs when the map is NULL during suspend or resume
2 parent s 93fd8eb + be04c14
History
Tip revision: 0e306952d7151afdaa16e9acf280a739d1fe7b29 authored by Linus Torvalds on 16 June 2023, 03:19:21 UTC
Merge tag 'for-6.4/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Tip revision: 0e30695
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