Hi Linus,
The following changes since commit f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6:
Linux 6.4-rc2 (2023-05-14 12:51:40 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git tags/for-6.4/dm-fixes
for you to fetch changes up to be04c14a1bd262a49e5764e5cf864259b7e740fd:
dm: use op specific max_sectors when splitting abnormal io (2023-06-15
12:47:16 -0400)
Please pull, thanks.
Mike
----------------------------------------------------------------
- Fix DM thinp discard performance regression introduced during 6.4
merge; 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).
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----------------------------------------------------------------
Li Lingfeng (2):
dm: don't lock fs when the map is NULL during suspend or resume
dm thin metadata: check fail_io before using data_sm
Mike Snitzer (2):
dm thin: fix issue_discard to pass GFP_NOIO to __blkdev_issue_discard
dm: use op specific max_sectors when splitting abnormal io
drivers/md/dm-ioctl.c | 5 +----
drivers/md/dm-thin-metadata.c | 20 ++++++++++++--------
drivers/md/dm-thin.c | 3 +--
drivers/md/dm.c | 29 ++++++++++++++++++++---------
4 files changed, 34 insertions(+), 23 deletions(-)
