1 files changed, 3 insertions, 3 deletions

diff --git a/mm/slab_common.c b/mm/slab_common.c
index 989784bd88be..6087b1f9a385 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -488,6 +488,7 @@ void memcg_create_kmem_cache(struct mem_cgroup *memcg,
                              struct kmem_cache *root_cache)
 {
         static char memcg_name_buf[NAME_MAX + 1]; /* protected by slab_mutex */
+        struct cgroup_subsys_state *css = mem_cgroup_css(memcg);
         struct memcg_cache_array *arr;
         struct kmem_cache *s = NULL;
         char *cache_name;
@@ -510,10 +511,9 @@ void memcg_create_kmem_cache(struct mem_cgroup *memcg,
         if (arr->entries[idx])
                 goto out_unlock;
 
-        cgroup_name(mem_cgroup_css(memcg)->cgroup,
-                    memcg_name_buf, sizeof(memcg_name_buf));
+        cgroup_name(css->cgroup, memcg_name_buf, sizeof(memcg_name_buf));
         cache_name = kasprintf(GFP_KERNEL, "%s(%d:%s)", root_cache->name,
-                               idx, memcg_name_buf);
+                               css->id, memcg_name_buf);
         if (!cache_name)
                 goto out_unlock;