Merge branch 'slab/urgent' into for-linus

1 files changed, 2 insertions, 0 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 819f056b39c..a9201d83178 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2595,6 +2595,8 @@ static inline int kmem_cache_close(struct kmem_cache *s)
  */
 void kmem_cache_destroy(struct kmem_cache *s)
 {
+        if (s->flags & SLAB_DESTROY_BY_RCU)
+                rcu_barrier();
         down_write(&slub_lock);
         s->refcount--;
         if (!s->refcount) {