Commit 188fd063 authored by Christoph Lameter's avatar Christoph Lameter Committed by Pekka Enberg
Browse files

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: default avatarChristoph Lameter <cl@linux.com>
Signed-off-by: default avatarPekka Enberg <penberg@kernel.org>
parent f4697436

mm/slub.c

+9 −7
Original line number Diff line number Diff line
@@ -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)
@@ -2269,10 +2275,6 @@ 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);



	if (unlikely(!freelist)) {