--- 3199b76f795de33f9db31e140aad75a716a51d44
+++ 3911375b1d0dd692261b62191ba508698445e847
@@ -43,6 +43,13 @@ config CFQ_GROUP_IOSCHED
 	---help---
 	  Enable group IO scheduling in CFQ.
 
+config IOSCHED_VR
+	tristate "V(R) I/O scheduler"
+	default n
+	---help---
+	  Requests are chosen according to SSTF with a penalty of rev_penalty
+	  for switching head direction.
+
 choice
 	prompt "Default I/O scheduler"
 	default DEFAULT_CFQ
@@ -56,6 +63,9 @@ choice
 	config DEFAULT_CFQ
 		bool "CFQ" if IOSCHED_CFQ=y
 
+	config DEFAULT_VR
+		bool "V(R)" if IOSCHED_VR=y
+
 	config DEFAULT_NOOP
 		bool "No-op"
 
@@ -65,6 +75,7 @@ config DEFAULT_IOSCHED
 	string
 	default "deadline" if DEFAULT_DEADLINE
 	default "cfq" if DEFAULT_CFQ
+	default "vr" if DEFAULT_VR
 	default "noop" if DEFAULT_NOOP
 
 endmenu