Messages in this thread Patch in this message | | | From | Tetsuo Handa <> | Subject | [PATCH] quota: Check for register_shrinker() failure. | Date | Wed, 29 Nov 2017 22:34:50 +0900 |
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register_shrinker() might return -ENOMEM error since Linux 3.12. Call panic() as with other failure checks in this function if register_shrinker() failed.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Jan Kara <jack@suse.com> Cc: Michal Hocko <mhocko@suse.com> --- fs/quota/dquot.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 39f1b0b..1429f03 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2985,7 +2985,8 @@ 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; } -- 1.8.3.1
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