From 188fd063208942a4681d8e8a4484ad0d4ae0fda1 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 9 May 2012 10:09:55 -0500 Subject: [PATCH] slub: new_slab_objects() can also get objects from partial list Moving the attempt to get a slab page from the partial lists simplifies __slab_alloc which is rather complicated. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- mm/slub.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 5aacd434e2cb..b29246bc7392 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2130,9 +2130,15 @@ static inline void *new_slab_objects(struct kmem_cache *s, gfp_t flags, int node, struct kmem_cache_cpu **pc) { void *freelist; - struct kmem_cache_cpu *c; - struct page *page = new_slab(s, flags, node); + struct kmem_cache_cpu *c = *pc; + struct page *page; + + freelist = get_partial(s, flags, node, c); + if (freelist) + return freelist; + + page = new_slab(s, flags, node); if (page) { c = __this_cpu_ptr(s->cpu_slab); if (c->page) @@ -2269,11 +2275,7 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, goto redo; } - /* Then do expensive stuff like retrieving pages from the partial lists */ - freelist = get_partial(s, gfpflags, node, c); - - if (!freelist) - freelist = new_slab_objects(s, gfpflags, node, &c); + freelist = new_slab_objects(s, gfpflags, node, &c); if (unlikely(!freelist)) { if (!(gfpflags & __GFP_NOWARN) && printk_ratelimit()) -- GitLab