[RFC PATCH V2 9/9] slab: annotate code to generate more compact asm code

[Jesper Dangaard Brouer <brouer@redhat.com>]

Premature optimizations for CONFIG_NUMA case...
---
 mm/slab.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 72c7958b4075..6d79fc5668c4 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3185,7 +3185,7 @@ __do_cache_alloc(struct kmem_cache *cache, gfp_t flags)
 {
 	void *objp;
 
-	if (current->mempolicy || cpuset_do_slab_mem_spread()) {
+	if (unlikely(current->mempolicy || cpuset_do_slab_mem_spread())) {
 		objp = alternate_node_alloc(cache, flags);
 		if (objp)
 			goto out;
@@ -3196,7 +3196,7 @@ __do_cache_alloc(struct kmem_cache *cache, gfp_t flags)
 	 * We may just have run out of memory on the local node.
 	 * ____cache_alloc_node() knows how to locate memory on other nodes
 	 */
-	if (!objp)
+	if (unlikely(!objp))
 		objp = ____cache_alloc_node(cache, flags, numa_mem_id());
 
   out:

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