From 9195291e5f05e01d67f9a09c756b8aca8f009089 Mon Sep 17 00:00:00 2001 From: Divyesh Shah Date: Thu, 1 Apr 2010 15:01:41 -0700 Subject: blkio: Increment the blkio cgroup stats for real now We also add start_time_ns and io_start_time_ns fields to struct request here to record the time when a request is created and when it is dispatched to device. We use ns uints here as ms and jiffies are not very useful for non-rotational media. Signed-off-by: Divyesh Shah Signed-off-by: Jens Axboe --- block/blk-cgroup.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'block/blk-cgroup.h') diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 5c5e5294b50..80010ef64ab 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -112,12 +112,12 @@ static inline char *blkg_path(struct blkio_group *blkg) { return blkg->path; } -void blkiocg_update_blkio_group_dequeue_stats(struct blkio_group *blkg, +void blkiocg_update_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) {} +static inline void blkiocg_update_dequeue_stats(struct blkio_group *blkg, + unsigned long dequeue) {} #endif #if defined(CONFIG_BLK_CGROUP) || defined(CONFIG_BLK_CGROUP_MODULE) @@ -130,6 +130,10 @@ extern struct blkio_group *blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key); void blkiocg_update_timeslice_used(struct blkio_group *blkg, unsigned long time); +void blkiocg_update_request_dispatch_stats(struct blkio_group *blkg, + struct request *rq); +void blkiocg_update_request_completion_stats(struct blkio_group *blkg, + struct request *rq); #else struct cgroup; static inline struct blkio_cgroup * @@ -147,5 +151,9 @@ static inline struct blkio_group * blkiocg_lookup_group(struct blkio_cgroup *blkcg, void *key) { return NULL; } static inline void blkiocg_update_timeslice_used(struct blkio_group *blkg, unsigned long time) {} +static inline void blkiocg_update_request_dispatch_stats( + struct blkio_group *blkg, struct request *rq) {} +static inline void blkiocg_update_request_completion_stats( + struct blkio_group *blkg, struct request *rq) {} #endif #endif /* _BLK_CGROUP_H */ -- cgit v1.2.3