+/*
+ * Calling cpuset_static_nodemask() should be paired with this function,
+ * so we insure the global nodemask won't be used by more than one user
+ * at the one time.
+ */
+static void cpuset_release_static_nodemask(void)
+{
+	WARN_ON(!cgroup_lock_is_held());
+
+	cpuset_mems_ref--;
+	WARN_ON(!cpuset_mems_ref);

WARN_ON(cpuset_mems_ref);

+}