1 files changed, 8 insertions, 5 deletions

diff --git a/mm/slab.c b/mm/slab.c
index f0bd7857ab3b..29c8716eb7a9 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3284,12 +3284,10 @@ static void *alternate_node_alloc(struct kmem_cache *cachep, gfp_t flags)
         if (in_interrupt() || (flags & __GFP_THISNODE))
                 return NULL;
         nid_alloc = nid_here = numa_mem_id();
-        get_mems_allowed();
         if (cpuset_do_slab_mem_spread() && (cachep->flags & SLAB_MEM_SPREAD))
                 nid_alloc = cpuset_slab_spread_node();
         else if (current->mempolicy)
                 nid_alloc = slab_node(current->mempolicy);
-        put_mems_allowed();
         if (nid_alloc != nid_here)
                 return ____cache_alloc_node(cachep, flags, nid_alloc);
         return NULL;
@@ -3312,14 +3310,17 @@ static void *fallback_alloc(struct kmem_cache *cache, gfp_t flags)
         enum zone_type high_zoneidx = gfp_zone(flags);
         void *obj = NULL;
         int nid;
+        unsigned int cpuset_mems_cookie;
 
         if (flags & __GFP_THISNODE)
                 return NULL;
 
-        get_mems_allowed();
-        zonelist = node_zonelist(slab_node(current->mempolicy), flags);
         local_flags = flags & (GFP_CONSTRAINT_MASK|GFP_RECLAIM_MASK);
 
+retry_cpuset:
+        cpuset_mems_cookie = get_mems_allowed();
+        zonelist = node_zonelist(slab_node(current->mempolicy), flags);
+
 retry:
         /*
          * Look through allowed nodes for objects available
@@ -3372,7 +3373,9 @@ retry:
                         }
                 }
         }
-        put_mems_allowed();
+
+        if (unlikely(!put_mems_allowed(cpuset_mems_cookie) && !obj))
+                goto retry_cpuset;
         return obj;
 }