quota: Check for register_shrinker() failure.
[ Upstream commitpull/10/head88bc0ede8d
] 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:1d3d4437ea
("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> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
600c904b91
commit
8f8b2c79c4
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@ -2985,7 +2985,8 @@ static int __init dquot_init(void)
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pr_info("VFS: Dquot-cache hash table entries: %ld (order %ld,"
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" %ld bytes)\n", nr_hash, order, (PAGE_SIZE << order));
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register_shrinker(&dqcache_shrinker);
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if (register_shrinker(&dqcache_shrinker))
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panic("Cannot register dquot shrinker");
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return 0;
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}
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