[PATCH] mm: optimize numa policy handling in slab allocator

[deliverable/linux.git] / mm / slab.c

diff --git a/mm/slab.c b/mm/slab.c
index 9025608696ec9bb83d1010d3b09aed9796668c33..6f8495e2185b36c4d4e08402a111a59a3deeb01b 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2574,7 +2574,7 @@ static inline void *____cache_alloc(kmem_cache_t *cachep, gfp_t flags)
        struct array_cache *ac;
 
 #ifdef CONFIG_NUMA
-       if (current->mempolicy) {
+       if (unlikely(current->mempolicy && !in_interrupt())) {
                int nid = slab_node(current->mempolicy);
 
                if (nid != numa_node_id())