diff options
| author | Tejun Heo <tj@kernel.org> | 2012-03-05 22:14:54 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-03-06 21:27:21 +0100 |
| commit | 32e380aedc3de454c06ce1c254fe3bea35a676e1 (patch) | |
| tree | ae48ced36af22f020451cb05ecca835ff561dc9d /init | |
| parent | block: blk-throttle should be drained regardless of q->elevator (diff) | |
| download | linux-32e380aedc3de454c06ce1c254fe3bea35a676e1.tar.xz linux-32e380aedc3de454c06ce1c254fe3bea35a676e1.zip | |
blkcg: make CONFIG_BLK_CGROUP bool
Block cgroup core can be built as module; however, it isn't too useful
as blk-throttle can only be built-in and cfq-iosched is usually the
default built-in scheduler. Scheduled blkcg cleanup requires calling
into blkcg from block core. To simplify that, disallow building blkcg
as module by making CONFIG_BLK_CGROUP bool.
If building blkcg core as module really matters, which I doubt, we can
revisit it after blkcg API cleanup.
-v2: Vivek pointed out that IOSCHED_CFQ was incorrectly updated to
depend on BLK_CGROUP. Fixed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig index 3f42cd66f0f8..da9222d5ae97 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -766,7 +766,7 @@ config RT_GROUP_SCHED endif #CGROUP_SCHED config BLK_CGROUP - tristate "Block IO controller" + bool "Block IO controller" depends on BLOCK default n ---help--- |