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Commit 88bc0ede authored by Tetsuo Handa's avatar Tetsuo Handa Committed by Jan Kara
Browse files

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: 1d3d4437 ("vmscan: per-node deferred work")
Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Jan Kara <jack@suse.com>
Cc: Michal Hocko <mhocko@suse.com>
Reviewed-by: default avatarMichal Hocko <mhocko@suse.com>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 1a6152d3

fs/quota/dquot.c

+2 −1
Original line number Diff line number Diff line
@@ -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;

}