diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index e8c0bbd..f4e35ed 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -362,6 +362,11 @@
 	struct list_head	timeout_list;
 
 	struct list_head	icq_list;
+#ifdef CONFIG_BLK_CGROUP
+	/* XXX: array size hardcoded to avoid include dependency (temporary) */
+	struct list_head	blkg_list[2];
+	int			nr_blkgs[2];
+#endif
 
 	struct queue_limits	limits;