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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

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Pull quota fix from Jan Kara:
 "Fix locking of dquot shrinker"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: missing lock in dqcache_shrink_scan()
This commit is contained in:
Linus Torvalds
2014-07-15 17:47:42 -10:00
parent d7b6e53e32 d68aab6b8f
commit c20ddc6499
1 changed files with 2 additions and 0 deletions
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2
fs/quota/dquot.c
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@@ -702,6 +702,7 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
struct dquot *dquot; struct dquot *dquot;
unsigned long freed = 0; unsigned long freed = 0;
spin_lock(&dq_list_lock);
head = free_dquots.prev; head = free_dquots.prev;
while (head != &free_dquots && sc->nr_to_scan) { while (head != &free_dquots && sc->nr_to_scan) {
dquot = list_entry(head, struct dquot, dq_free); dquot = list_entry(head, struct dquot, dq_free);
@@ -713,6 +714,7 @@ dqcache_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
freed++; freed++;
head = free_dquots.prev; head = free_dquots.prev;
} }
spin_unlock(&dq_list_lock);
return freed; return freed;
} }