diff options
Diffstat (limited to 'block/blk-cgroup.h')
| -rw-r--r-- | block/blk-cgroup.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 4f89b967467..4d316df863b 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -46,11 +46,35 @@ struct blkio_group { extern bool blkiocg_css_tryget(struct blkio_cgroup *blkcg); extern void blkiocg_css_put(struct blkio_cgroup *blkcg); +typedef void (blkio_unlink_group_fn) (void *key, struct blkio_group *blkg); +typedef void (blkio_update_group_weight_fn) (struct blkio_group *blkg, + unsigned int weight); + +struct blkio_policy_ops { + blkio_unlink_group_fn *blkio_unlink_group_fn; + blkio_update_group_weight_fn *blkio_update_group_weight_fn; +}; + +struct blkio_policy_type { + struct list_head list; + struct blkio_policy_ops ops; +}; + +/* Blkio controller policy registration */ +extern void blkio_policy_register(struct blkio_policy_type *); +extern void blkio_policy_unregister(struct blkio_policy_type *); + #else struct blkio_group { }; +struct blkio_policy_type { +}; + +static inline void blkio_policy_register(struct blkio_policy_type *blkiop) { } +static inline void blkio_policy_unregister(struct blkio_policy_type *blkiop) { } + #endif #define BLKIO_WEIGHT_MIN 100 |