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| author | Divyesh Shah <dpshah@google.com> | 2010-04-01 15:01:41 -0700 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2010-04-02 08:44:37 +0200 |
| commit | 9195291e5f05e01d67f9a09c756b8aca8f009089 (patch) | |
| tree | e46a151fe39be2bc23d0683bedb2cbefe916fb5b /block/blk-cgroup.h | |
| parent | 303a3acb2362f16c7e7f4c53b40c2f4b396dc8d5 (diff) | |
| download | linux-stable-9195291e5f05e01d67f9a09c756b8aca8f009089.tar.gz linux-stable-9195291e5f05e01d67f9a09c756b8aca8f009089.tar.bz2 linux-stable-9195291e5f05e01d67f9a09c756b8aca8f009089.zip | |
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<dpshah@google.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk-cgroup.h')
| -rw-r--r-- | block/blk-cgroup.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 5c5e5294b506..80010ef64ab0 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 */ |