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author | Li Lingfeng | 2023-06-01 14:14:23 +0800 |
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committer | Greg Kroah-Hartman | 2023-06-21 16:01:02 +0200 |
commit | d24c9658177587c0e64677691fbc35b2df79b1e8 (patch) | |
tree | eaf6bbcca50979be31cb1bae01dbfb9d7ace4507 /LICENSES | |
parent | 010179208c662bfb16f67869dfbb90cf8ec7d55f (diff) |
dm: don't lock fs when the map is NULL during suspend or resume
[ Upstream commit 2760904d895279f87196f0fa9ec570c79fe6a2e4 ]
As described in commit 38d11da522aa ("dm: don't lock fs when the map is
NULL in process of resume"), a deadlock may be triggered between
do_resume() and do_mount().
This commit preserves the fix from commit 38d11da522aa but moves it to
where it also serves to fix a similar deadlock between do_suspend()
and do_mount(). It does so, if the active map is NULL, by clearing
DM_SUSPEND_LOCKFS_FLAG in dm_suspend() which is called by both
do_suspend() and do_resume().
Fixes: 38d11da522aa ("dm: don't lock fs when the map is NULL in process of resume")
Signed-off-by: Li Lingfeng <lilingfeng3@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'LICENSES')
0 files changed, 0 insertions, 0 deletions