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(parent: ec80991) | patch
block: track request size in blk_issue_stat
authorShaohua Li <shli@fb.com>
Mon, 27 Mar 2017 22:19:41 +0000 (15:19 -0700)
committerJens Axboe <axboe@fb.com>
Tue, 28 Mar 2017 14:02:20 +0000 (08:02 -0600)
commit88eeca495ba7de749ff253376ec6be19bb05368d
treee2ff562f879d0b581028ba71a028cda9319039e5tree | snapshot (tar.gz zip)
parentec80991d6fc2cb17abfc5427ac1512d2ccd40589commit | diff
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>
block/blk-core.c diff | blob | blame | history
block/blk-mq.c diff | blob | blame | history
block/blk-stat.h diff | blob | blame | history
block/blk-wbt.h diff | blob | blame | history
include/linux/blk_types.h diff | blob | blame | history