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| author | Tejun Heo <tj@kernel.org> | 2015-05-22 23:13:36 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 16:33:35 +0200 |
| commit | 89e9b9e07a390c50980d10aa37a04631db5a23ab (patch) | |
| tree | 194810fa9bd85a9d0e3145eeafc4a305057757f8 /init | |
| parent | bdi: separate out congested state into a separate struct (diff) | |
| download | linux-89e9b9e07a390c50980d10aa37a04631db5a23ab.tar.xz linux-89e9b9e07a390c50980d10aa37a04631db5a23ab.zip | |
writeback: add {CONFIG|BDI_CAP|FS}_CGROUP_WRITEBACK
cgroup writeback requires support from both bdi and filesystem sides.
Add BDI_CAP_CGROUP_WRITEBACK and FS_CGROUP_WRITEBACK to indicate
support and enable BDI_CAP_CGROUP_WRITEBACK on block based bdi's by
default. Also, define CONFIG_CGROUP_WRITEBACK which is enabled if
both MEMCG and BLK_CGROUP are enabled.
inode_cgwb_enabled() which determines whether a given inode's both bdi
and fs support cgroup writeback is added.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index dc24dec60232..d4f763332f9f 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1141,6 +1141,11 @@ config DEBUG_BLK_CGROUP Enable some debugging help. Currently it exports additional stat files in a cgroup which can be useful for debugging. +config CGROUP_WRITEBACK + bool + depends on MEMCG && BLK_CGROUP + default y + endif # CGROUPS config CHECKPOINT_RESTORE |