diff --git a/include/linux/bio.h b/include/linux/bio.h
index 5175aa31..f53568c 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -163,12 +163,15 @@
 #define BIO_RW		0	/* Must match RW in req flags (blkdev.h) */
 #define BIO_RW_AHEAD	1	/* Must match FAILFAST in req flags */
 #define BIO_RW_BARRIER	2
-#define BIO_RW_SYNC	3
-#define BIO_RW_META	4
-#define BIO_RW_DISCARD	5
-#define BIO_RW_FAILFAST_DEV		6
-#define BIO_RW_FAILFAST_TRANSPORT	7
-#define BIO_RW_FAILFAST_DRIVER		8
+#define BIO_RW_SYNCIO	3
+#define BIO_RW_UNPLUG	4
+#define BIO_RW_META	5
+#define BIO_RW_DISCARD	6
+#define BIO_RW_FAILFAST_DEV		7
+#define BIO_RW_FAILFAST_TRANSPORT	8
+#define BIO_RW_FAILFAST_DRIVER		9
+
+#define BIO_RW_SYNC	(BIO_RW_SYNCIO | BIO_RW_UNPLUG)
 
 /*
  * upper 16 bits of bi_rw define the io priority of this bio
@@ -194,7 +197,8 @@
 #define bio_segments(bio)	((bio)->bi_vcnt - (bio)->bi_idx)
 #define bio_sectors(bio)	((bio)->bi_size >> 9)
 #define bio_barrier(bio)	((bio)->bi_rw & (1 << BIO_RW_BARRIER))
-#define bio_sync(bio)		((bio)->bi_rw & (1 << BIO_RW_SYNC))
+#define bio_sync(bio)		((bio)->bi_rw & (1 << BIO_RW_SYNCIO))
+#define bio_unplug(bio)		((bio)->bi_rw & (1 << BIO_RW_UNPLUG))
 #define bio_failfast_dev(bio)	((bio)->bi_rw &	(1 << BIO_RW_FAILFAST_DEV))
 #define bio_failfast_transport(bio)	\
 	((bio)->bi_rw & (1 << BIO_RW_FAILFAST_TRANSPORT))