vfs: add cond_resched_lock while scanning dentry LRU lists

Add cond_resched_lock(&dcache_lock) while scanning LRU lists on superblocks in __shrink_dcache_sb() Signed-off-by: Kentaro Makita <k-makita@np.css.fujitsu.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
git-mirror · Jul 26, 2008 · f3c6ba9 · f3c6ba9
1 parent a76eef9
commit f3c6ba9
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/fs/dcache.c b/fs/dcache.c
@@ -487,6 +487,7 @@ static void __shrink_dcache_sb(struct super_block *sb, int *count, int flags)
 				if (!cnt)
 					break;
 			}
+			cond_resched_lock(&dcache_lock);
 		}
 	}
 	while (!list_empty(&tmp)) {