diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 2de6504..2fdd138 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -102,6 +102,8 @@
 	return false;
 }
 
+extern bool mem_cgroup_oom_called(struct task_struct *task);
+
 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
 struct mem_cgroup;
 
@@ -234,6 +236,11 @@
 {
 	return true;
 }
+
+static inline bool mem_cgroup_oom_called(struct task_struct *task)
+{
+	return false;
+}
 #endif /* CONFIG_CGROUP_MEM_CONT */
 
 #endif /* _LINUX_MEMCONTROL_H */