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authorVivek Goyal <vgoyal@redhat.com>2009-12-03 12:59:43 -0500
committerJens Axboe <jens.axboe@oracle.com>2009-12-03 19:28:52 +0100
commit25bc6b07767fe77422312eda2af99c9477f76191 (patch)
tree1e0f2d5a18efb63c651df8773a6d5ad2b87d7687 /block/Kconfig.iosched
parent31e4c28d95e64f2d5d3c497a3ecf37c62de635b4 (diff)
downloadkernel-25bc6b07767fe77422312eda2af99c9477f76191.tar.gz
blkio: Introduce per cfq group weights and vdisktime calculations
o Bring in the per cfq group weight and how vdisktime is calculated for the group. Also bring in the functionality of updating the min_vdisktime of the group service tree. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/Kconfig.iosched')
-rw-r--r--block/Kconfig.iosched9
1 files changed, 8 insertions, 1 deletions
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched
index be0280deec29..fa95fa770570 100644
--- a/block/Kconfig.iosched
+++ b/block/Kconfig.iosched
@@ -23,7 +23,6 @@ config IOSCHED_DEADLINE
config IOSCHED_CFQ
tristate "CFQ I/O scheduler"
- select BLK_CGROUP
default y
---help---
The CFQ I/O scheduler tries to distribute bandwidth equally
@@ -33,6 +32,14 @@ config IOSCHED_CFQ
This is the default I/O scheduler.
+config CFQ_GROUP_IOSCHED
+ bool "CFQ Group Scheduling support"
+ depends on IOSCHED_CFQ && CGROUPS
+ select BLK_CGROUP
+ default n
+ ---help---
+ Enable group IO scheduling in CFQ.
+
choice
prompt "Default I/O scheduler"
default DEFAULT_CFQ