UBUNTU: Ubuntu-2.6.38-12.51

[linux-flexiantxendom0-natty.git] / block / Kconfig

diff --git a/block/Kconfig b/block/Kconfig
index 62a5921..60be1e0 100644 (file)
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -2,7 +2,7 @@
 # Block layer core configuration
 #
 menuconfig BLOCK
-       bool "Enable the block layer" if EMBEDDED
+       bool "Enable the block layer" if EXPERT
        default y
        help
         Provide block layer support for the kernel.
@@ -77,27 +77,17 @@ config BLK_DEV_INTEGRITY
        T10/SCSI Data Integrity Field or the T13/ATA External Path
        Protection.  If in doubt, say N.
 
-config BLK_CGROUP
-       tristate
-       depends on CGROUPS
+config BLK_DEV_THROTTLING
+       bool "Block layer bio throttling support"
+       depends on BLK_CGROUP=y && EXPERIMENTAL
        default n
        ---help---
-       Generic block IO controller cgroup interface. This is the common
-       cgroup interface which should be used by various IO controlling
-       policies.
+       Block layer bio throttling support. It can be used to limit
+       the IO rate to a device. IO rate policies are per cgroup and
+       one needs to mount and use blkio cgroup controller for creating
+       cgroups and specifying per device IO rate policies.
 
-       Currently, CFQ IO scheduler uses it to recognize task groups and
-       control disk bandwidth allocation (proportional time slice allocation)
-       to such task groups.
-
-config DEBUG_BLK_CGROUP
-       bool
-       depends on BLK_CGROUP
-       default n
-       ---help---
-       Enable some debugging help. Currently it stores the cgroup path
-       in the blk group which can be used by cfq for tracing various
-       group related activity.
+       See Documentation/cgroups/blkio-controller.txt for more information.
 
 endif # BLOCK