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>
This commit is contained in:
Kentaro Makita 2008-07-25 19:44:40 -07:00 committed by Linus Torvalds
parent a76eef9573
commit f3c6ba986a

View File

@ -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)) {