diff --git a/block/blk.h b/block/blk.h
index 608c5dc..686712e 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -15,15 +15,14 @@ struct elevator_type;
 extern struct dentry *blk_debugfs_root;
 
 struct blk_flush_queue {
+	spinlock_t		mq_flush_lock;
 	unsigned int		flush_pending_idx:1;
 	unsigned int		flush_running_idx:1;
 	blk_status_t 		rq_status;
 	unsigned long		flush_pending_since;
 	struct list_head	flush_queue[2];
-	struct list_head	flush_data_in_flight;
+	unsigned long		flush_data_in_flight;
 	struct request		*flush_rq;
-
-	spinlock_t		mq_flush_lock;
 };
 
 bool is_flush_rq(struct request *req);