diff options
| -rw-r--r-- | mm/slab.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/slab.h b/mm/slab.h index 53a55c70c40..078acbcf64e 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -209,15 +209,15 @@ cache_from_memcg_idx(struct kmem_cache *s, int idx) rcu_read_lock(); params = rcu_dereference(s->memcg_params); - cachep = params->memcg_caches[idx]; - rcu_read_unlock(); /* * Make sure we will access the up-to-date value. The code updating * memcg_caches issues a write barrier to match this (see * memcg_register_cache()). */ - smp_read_barrier_depends(); + cachep = lockless_dereference(params->memcg_caches[idx]); + rcu_read_unlock(); + return cachep; } |