diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 3d54c418bd06..a735402837ac 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1188,7 +1188,13 @@ done:
 
 int current_cpuset_is_being_rebound(void)
 {
-	return task_cs(current) == cpuset_being_rebound;
+	int ret;
+
+	rcu_read_lock();
+	ret = task_cs(current) == cpuset_being_rebound;
+	rcu_read_unlock();
+
+	return ret;
 }
 
 static int update_relax_domain_level(struct cpuset *cs, s64 val)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 35f9f91278fd..6b65d10f0df8 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2136,7 +2136,6 @@ struct mempolicy *__mpol_dup(struct mempolicy *old)
 	} else
 		*new = *old;
 
-	rcu_read_lock();
 	if (current_cpuset_is_being_rebound()) {
 		nodemask_t mems = cpuset_mems_allowed(current);
 		if (new->flags & MPOL_F_REBINDING)
@@ -2144,7 +2143,6 @@ struct mempolicy *__mpol_dup(struct mempolicy *old)
 		else
 			mpol_rebind_policy(new, &mems, MPOL_REBIND_ONCE);
 	}
-	rcu_read_unlock();
 	atomic_set(&new->refcnt, 1);
 	return new;
 }