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| author | Amir Goldstein <amir73il@gmail.com> | 2022-04-22 15:03:20 +0300 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2022-04-25 15:37:31 +0300 |
| commit | b8962a9d8cc2d8c93362e2f684091c79f702f6f3 (patch) | |
| tree | 8eb1745ec6e28b8f540dccc63cbb03097bbf2053 /fs/notify | |
| parent | 960bdff24ce802e38df918ebfcbfa62744d6ae22 (diff) | |
| download | linux-b8962a9d8cc2d8c93362e2f684091c79f702f6f3.tar.xz | |
nfsd: use fsnotify group lock helpers
Before commit 9542e6a643fc6 ("nfsd: Containerise filecache laundrette")
nfsd would close open files in direct reclaim context and that could
cause a deadlock when fsnotify mark allocation went into direct reclaim
and nfsd shrinker tried to free existing fsnotify marks.
To avoid issues like this in future code, set the FSNOTIFY_GROUP_NOFS
flag on nfsd fsnotify group to prevent going into direct reclaim from
fsnotify_add_inode_mark().
Link: https://lore.kernel.org/r/20220422120327.3459282-10-amir73il@gmail.com
Suggested-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220321112310.vpr7oxro2xkz5llh@quack3.lan/
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/notify')
0 files changed, 0 insertions, 0 deletions