Commit 8f1e33da authored Nov 23, 2011 by Christoph Lameter Committed by Pekka Enberg Dec 13, 2011

slub: Switch per cpu partial page support off for debugging



Eric saw an issue with accounting of slabs during validation. Its not
possible to determine accurately how many per cpu partial slabs exist at
any time so this switches off per cpu partial pages during debug.

Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

parent dc47ce90

mm/slub.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -3028,7 +3028,9 @@ static int kmem_cache_open(struct kmem_cache *s,
		* per node list when we run out of per cpu objects. We only fetch 50%
		* to keep some capacity around for frees.
		*/
		if (s->size >= PAGE_SIZE)
		if (kmem_cache_debug(s))
		s->cpu_partial = 0;
		else if (s->size >= PAGE_SIZE)
		s->cpu_partial = 2;
		else if (s->size >= 1024)
		s->cpu_partial = 6;