[RFC][patch 1/11][CFQ-cgroup] Add Configuration

[Satoshi UCHIDA]

This patch adds configuration entry into block/Kconfig.iosched.

   Signed-off-by: Satoshi UCHIDA <uchida@xxxxxxxxxxxxx>

diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched
index 96a01b3..493c68c 100644
--- a/block/Kconfig.iosched
+++ b/block/Kconfig.iosched
@@ -25,6 +25,15 @@ config IOSCHED_CFQ
 
 	  If unsure, say Y.
 
+config CGROUP_CFQ
+	bool "handling cgroup in CFQ"
+	default n
+	depends on IOSCHED_CFQ && CGROUPS
+	---help---
+          This option exptends CFQ to handling cgroup.
+          CFQ is changed into two layler control
+          per-cgroup layler and per-task layler.
+	
 config IOSCHED_AS
 	tristate "Anticipatory I/O scheduler"
 	default y

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