diff --git a/include/linux/fs.h b/include/linux/fs.h
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -66,13 +66,24 @@ extern int dir_notify_enable;
 
 #define RW_MASK		1
 #define RWA_MASK	2
-#define READ 0
-#define WRITE 1
-#define READA 2		/* read-ahead  - don't block if no resources */
-#define SPECIAL 4	/* For non-blockdevice requests in request queue */
-#define READ_SYNC	(READ | (1 << BIO_RW_SYNC))
-#define WRITE_SYNC	(WRITE | (1 << BIO_RW_SYNC))
-#define WRITE_BARRIER	((1 << BIO_RW) | (1 << BIO_RW_BARRIER))
+#define RQ_READ		0
+#define RQ_WRITE	1
+#define RQ_READA	2	/* read-ahead  - don't block if no resources */
+#define RQ_SPECIAL	4	/* For non-blockdevice requests in request queue */
+#define RQ_READ_SYNC		(READ | (1 << BIO_RW_SYNC))
+#define RQ_WRITE_SYNC		(WRITE | (1 << BIO_RW_SYNC))
+#define RQ_WRITE_BARRIER	((1 << BIO_RW) | (1 << BIO_RW_BARRIER))
+#define RQ_FLUSH	7
+#define RQ_PM_EVENT	8
+
+/* compatibility with existing code */
+#define READ		RQ_READ
+#define WRITE		RQ_WRITE
+#define READA		RQ_READA
+#define SPECIAL		RQ_SPECIAL
+#define READ_SYNC	RQ_READ_SYNC
+#define WRITE_SYNC	RQ_WRITE_SYNC
+#define WRITE_BARRIER	RQ_WRITE_BARRIER
 
 #define SEL_IN		1
 #define SEL_OUT		2