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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/cfq-iosched.c | |
| parent | 303a3acb2362f16c7e7f4c53b40c2f4b396dc8d5 (diff) | |
| download | linux-9195291e5f05e01d67f9a09c756b8aca8f009089.tar.gz linux-9195291e5f05e01d67f9a09c756b8aca8f009089.tar.bz2 linux-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/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index c5161bbf2fe9..42028e7128a7 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -855,7 +855,7 @@ cfq_group_service_tree_del(struct cfq_data *cfqd, struct cfq_group *cfqg) if (!RB_EMPTY_NODE(&cfqg->rb_node)) cfq_rb_erase(&cfqg->rb_node, st); cfqg->saved_workload_slice = 0; - blkiocg_update_blkio_group_dequeue_stats(&cfqg->blkg, 1); + blkiocg_update_dequeue_stats(&cfqg->blkg, 1); } static inline unsigned int cfq_cfqq_slice_usage(struct cfq_queue *cfqq) @@ -1865,6 +1865,7 @@ static void cfq_dispatch_insert(struct request_queue *q, struct request *rq) elv_dispatch_sort(q, rq); cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]++; + blkiocg_update_request_dispatch_stats(&cfqq->cfqg->blkg, rq); } /* @@ -3285,6 +3286,7 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq) WARN_ON(!cfqq->dispatched); cfqd->rq_in_driver--; cfqq->dispatched--; + blkiocg_update_request_completion_stats(&cfqq->cfqg->blkg, rq); cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]--; |