diff --git a/fs/bio.c b/fs/bio.c
index e7bf6ca..8abb2df 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -843,7 +843,8 @@
 	if (!bio)
 		goto out_bmd;
 
-	bio->bi_rw |= (!write_to_vm << BIO_RW);
+	if (!write_to_vm)
+		bio->bi_rw |= REQ_WRITE;
 
 	ret = 0;
 
@@ -1024,7 +1025,7 @@
 	 * set data direction, and check if mapped pages need bouncing
 	 */
 	if (!write_to_vm)
-		bio->bi_rw |= (1 << BIO_RW);
+		bio->bi_rw |= REQ_WRITE;
 
 	bio->bi_bdev = bdev;
 	bio->bi_flags |= (1 << BIO_USER_MAPPED);