1 files changed, 4 insertions, 0 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a2c7bcb0e6eb..1f14a430c656 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5415,8 +5415,12 @@ static int mem_cgroup_oom_notify_cb(struct mem_cgroup *memcg)
 {
         struct mem_cgroup_eventfd_list *ev;
 
+        spin_lock(&memcg_oom_lock);
+
         list_for_each_entry(ev, &memcg->oom_notify, list)
                 eventfd_signal(ev->eventfd, 1);
+
+        spin_unlock(&memcg_oom_lock);
         return 0;
 }