From 8f1e33daeda6cd89753f9e77d174805a6f21db09 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 23 Nov 2011 09:24:27 -0600 Subject: [PATCH] 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 Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- mm/slub.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index ed3334d9b6da..4056d29e6610 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -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; -- GitLab