diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index 096c96f..9c5ea3b 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -6,4 +6,8 @@
 
 /* not valid from userspace, only kernel internal */
 #define FAN_MARK_ONDIR		0x00000100
+
+#define FAN_GROUP_FLAG(group, flag) \
+	((group)->fanotify_data.flags & (flag))
+
 #endif /* _LINUX_FANOTIFY_H */