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| author |   Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2017-11-29 22:34:50 +0900 |
|---|---|---|
| committer |   Jan Kara <jack@suse.cz> | 2017-11-29 16:46:48 +0100 |
| commit | 88bc0ede8d35edc969350852894dc864a2dc1859 (patch) | |
| tree | 45643bb6db52eded250bee72523814901f425362 /fs | |
| parent | quota: propagate error from __dquot_initialize (diff) | |
| download | wireguard-linux-88bc0ede8d35edc969350852894dc864a2dc1859.tar.xz wireguard-linux-88bc0ede8d35edc969350852894dc864a2dc1859.zip | |
quota: Check for register_shrinker() failure.
register_shrinker() might return -ENOMEM error since Linux 3.12.
Call panic() as with other failure checks in this function if
register_shrinker() failed.
Fixes: 1d3d4437eae1 ("vmscan: per-node deferred work")
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Jan Kara <jack@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Reviewed-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/quota/dquot.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index d38684ff2ebb..020c597ef9b6 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2992,7 +2992,8 @@ static int __init dquot_init(void) pr_info("VFS: Dquot-cache hash table entries: %ld (order %ld," " %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order)); - register_shrinker(&dqcache_shrinker); + if (register_shrinker(&dqcache_shrinker)) + panic("Cannot register dquot shrinker"); return 0; } |