Commit 318df36e authored Jun 19, 2013 by Joonsoo Kim Committed by Pekka Enberg Jul 07, 2013

slub: do not put a slab to cpu partial list when cpu_partial is 0



In free path, we don't check number of cpu_partial, so one slab can
be linked in cpu partial list even if cpu_partial is 0. To prevent this,
we should check number of cpu_partial in put_cpu_partial().

Acked-by: Christoph Lameeter <cl@linux.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

parent c17fd13e

mm/slub.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1954,6 +1954,9 @@ static void put_cpu_partial(struct kmem_cache s, struct page page, int drain)
		int pages;
		int pobjects;

		if (!s->cpu_partial)
		return;

		do {
		pages = 0;
		pobjects = 0;