diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 3d9cf32..49c2dbc 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -200,6 +200,13 @@
 	struct request *next_rq;
 };
 
+#define req_op(req)		(op_from_rq_bits((req)->cmd_flags))
+#define req_set_op(req, op)	((req)->cmd_flags |= op)
+#define req_set_op_attrs(req, op, flags) do {	\
+	req_set_op(req, op);			\
+	(req)->cmd_flags |= flags;		\
+} while (0)
+
 static inline unsigned short req_get_ioprio(struct request *req)
 {
 	return req->ioprio;
@@ -597,7 +604,8 @@
 
 #define list_entry_rq(ptr)	list_entry((ptr), struct request, queuelist)
 
-#define rq_data_dir(rq)		((int)((rq)->cmd_flags & 1))
+#define rq_data_dir(rq) \
+	(op_is_write(op_from_rq_bits(rq->cmd_flags)) ? WRITE : READ)
 
 /*
  * Driver can handle struct request, if it either has an old style