diff options
| author | Tejun Heo <tj@kernel.org> | 2012-03-06 01:15:04 +0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-03-07 00:27:22 +0400 |
| commit | 035d10b2fa7e5f7e9bf9465dbc39c35affd5ac32 (patch) | |
| tree | 6a712eb1b505e8163d28f8709980e581a08b572c /block/blk-cgroup.h | |
| parent | ca32aefc7f2539ed88d42763330d54ee3e61769a (diff) | |
| download | linux-035d10b2fa7e5f7e9bf9465dbc39c35affd5ac32.tar.xz | |
blkcg: add blkio_policy[] array and allow one policy per policy ID
Block cgroup policies are maintained in a linked list and,
theoretically, multiple policies sharing the same policy ID are
allowed.
This patch temporarily restricts one policy per plid and adds
blkio_policy[] array which indexes registered policy types by plid.
Both the restriction and blkio_policy[] array are transitional and
will be removed once API cleanup is complete.
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 'block/blk-cgroup.h')
| -rw-r--r-- | block/blk-cgroup.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 41c960b99c57..562fa55d97b1 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -19,6 +19,8 @@ enum blkio_policy_id { BLKIO_POLICY_PROP = 0, /* Proportional Bandwidth division */ BLKIO_POLICY_THROTL, /* Throttling */ + + BLKIO_NR_POLICIES, }; /* Max limits for throttle policy */ |