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(parent: 8111964) | patch
dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort
authorMike Snitzer <snitzer@kernel.org>
Wed, 30 Nov 2022 18:26:32 +0000 (13:26 -0500)
committerMike Snitzer <snitzer@kernel.org>
Thu, 1 Dec 2022 16:42:45 +0000 (11:42 -0500)
commit352b837a5541690d4f843819028cf2b8be83d424
treefcf79a3b8337c1ca65426f9dcdf3656c500184bbtree | snapshot
parent8111964f1b8524c4bb56b02cd9c7a37725ea21fdcommit | diff
dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort

Same ABBA deadlock pattern fixed in commit 4b60f452ec51 ("dm thin: Fix
ABBA deadlock between shrink_slab and dm_pool_abort_metadata") to
DM-cache's metadata.

Reported-by: Zhihao Cheng <chengzhihao1@huawei.com>
Cc: stable@vger.kernel.org
Fixes: 028ae9f76f29 ("dm cache: add fail io mode and needs_check flag")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
drivers/md/dm-cache-metadata.c diff | blob | history
Domain: System / Kernel;