diff --git a/[refs] b/[refs]
index c292de0c9ad1..251080dd8a63 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0a3716eb04ccfdbef6e872a343ba7ce309237e79
+refs/heads/master: 04e2f1741d235ba599037734878d72e57cb302b5
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
index c4bc8c210958..b387a8de26a5 100644
--- a/trunk/kernel/sched.c
+++ b/trunk/kernel/sched.c
@@ -1831,6 +1831,7 @@ static int try_to_wake_up(struct task_struct *p, unsigned int state, int sync)
 	long old_state;
 	struct rq *rq;
 
+	smp_wmb();
 	rq = task_rq_lock(p, &flags);
 	old_state = p->state;
 	if (!(old_state & state))