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authorChristoph Lameter <cl@linux.com>2012-05-09 10:09:55 -0500
committerPekka Enberg <penberg@kernel.org>2012-06-01 09:25:40 +0300
commit188fd063208942a4681d8e8a4484ad0d4ae0fda1 (patch)
treed00d4b5884aa9ecb381be41220fb2b42c0a4c27a /mm/slub.c
parentf469743673ceda5181970eb6b8090ba728c956fb (diff)
downloadlinux-188fd063208942a4681d8e8a4484ad0d4ae0fda1.tar.gz
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 <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c16
1 files 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 @@ new_slab:
 		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())