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| author | Shaohua Li <shli@fb.com> | 2017-03-27 15:19:41 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-03-28 08:02:20 -0600 |
| commit | 88eeca495ba7de749ff253376ec6be19bb05368d (patch) | |
| tree | e2ff562f879d0b581028ba71a028cda9319039e5 /block/blk-core.c | |
| parent | ec80991d6fc2cb17abfc5427ac1512d2ccd40589 (diff) | |
| download | linux-88eeca495ba7de749ff253376ec6be19bb05368d.tar.gz linux-88eeca495ba7de749ff253376ec6be19bb05368d.tar.xz | |
block: track request size in blk_issue_stat
Currently there is no way to know the request size when the request is
finished. Next patch will need this info. We could add extra field to
record the size, but blk_issue_stat has enough space to record it, so
this patch just overloads blk_issue_stat. With this, we will have 49bits
to track time, which still is very long time.
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index ad388d5e309a..4234332aa23c 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2483,7 +2483,7 @@ void blk_start_request(struct request *req) blk_dequeue_request(req); if (test_bit(QUEUE_FLAG_STATS, &req->q->queue_flags)) { - blk_stat_set_issue_time(&req->issue_stat); + blk_stat_set_issue(&req->issue_stat, blk_rq_sectors(req)); req->rq_flags |= RQF_STATS; wbt_issue(req->q->rq_wb, &req->issue_stat); } |