diff options
Diffstat (limited to 'block/blk-cgroup.h')
| -rw-r--r-- | block/blk-cgroup.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 3573199b298..b24ab71db82 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -30,7 +30,15 @@ struct blkio_group { #ifdef CONFIG_DEBUG_BLK_CGROUP /* Store cgroup path */ char path[128]; + /* How many times this group has been removed from service tree */ + unsigned long dequeue; #endif + /* The device MKDEV(major, minor), this group has been created for */ + dev_t dev; + + /* total disk time and nr sectors dispatched by this group */ + unsigned long time; + unsigned long sectors; }; #define BLKIO_WEIGHT_MIN 100 @@ -42,24 +50,30 @@ static inline char *blkg_path(struct blkio_group *blkg) { return blkg->path; } +void blkiocg_update_blkio_group_dequeue_stats(struct blkio_group *blkg, + unsigned long dequeue); #else static inline char *blkg_path(struct blkio_group *blkg) { return NULL; } +static inline void blkiocg_update_blkio_group_dequeue_stats( + struct blkio_group *blkg, unsigned long dequeue) {} #endif #ifdef CONFIG_BLK_CGROUP extern struct blkio_cgroup blkio_root_cgroup; extern struct blkio_cgroup *cgroup_to_blkio_cgroup(struct cgroup *cgroup); extern void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg, - struct blkio_group *blkg, void *key); + struct blkio_group *blkg, void *key, dev_t dev); extern int blkiocg_del_blkio_group(struct blkio_group *blkg); extern struct blkio_group *blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key); +void blkiocg_update_blkio_group_stats(struct blkio_group *blkg, + unsigned long time, unsigned long sectors); #else static inline struct blkio_cgroup * cgroup_to_blkio_cgroup(struct cgroup *cgroup) { return NULL; } static inline void blkiocg_add_blkio_group(struct blkio_cgroup *blkcg, - struct blkio_group *blkg, void *key) + struct blkio_group *blkg, void *key, dev_t dev) { } @@ -68,5 +82,9 @@ blkiocg_del_blkio_group(struct blkio_group *blkg) { return 0; } static inline struct blkio_group * blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key) { return NULL; } +static inline void blkiocg_update_blkio_group_stats(struct blkio_group *blkg, + unsigned long time, unsigned long sectors) +{ +} #endif #endif /* _BLK_CGROUP_H */ |