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| author | Gu Zheng <guz.fnst@cn.fujitsu.com> | 2014-11-24 11:05:24 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-11-24 08:05:12 -0700 |
| commit | aae4933da9488827d341c31b970b2f62ac45a496 (patch) | |
| tree | fcf7dd0cc039322493f4dc79a819e35ac0cfb378 /drivers/md/bcache | |
| parent | f74cd637b249dd96445e872813072401ef6e5fa6 (diff) | |
| download | linux-stable-aae4933da9488827d341c31b970b2f62ac45a496.tar.gz linux-stable-aae4933da9488827d341c31b970b2f62ac45a496.tar.bz2 linux-stable-aae4933da9488827d341c31b970b2f62ac45a496.zip | |
md/bcache: use generic io stats accounting functions to simplify io stat accounting
Use generic io stats accounting help functions (generic_{start,end}_io_acct)
to simplify io stat accounting.
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Acked-by: Kent Overstreet <kmo@datera.io>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/bcache')
| -rw-r--r-- | drivers/md/bcache/request.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 62e6e98186b5..ab43faddb447 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -601,13 +601,8 @@ static void request_endio(struct bio *bio, int error) static void bio_complete(struct search *s) { if (s->orig_bio) { - int cpu, rw = bio_data_dir(s->orig_bio); - unsigned long duration = jiffies - s->start_time; - - cpu = part_stat_lock(); - part_round_stats(cpu, &s->d->disk->part0); - part_stat_add(cpu, &s->d->disk->part0, ticks[rw], duration); - part_stat_unlock(); + generic_end_io_acct(bio_data_dir(s->orig_bio), + &s->d->disk->part0, s->start_time); trace_bcache_request_end(s->d, s->orig_bio); bio_endio(s->orig_bio, s->iop.error); @@ -959,12 +954,9 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio) struct search *s; struct bcache_device *d = bio->bi_bdev->bd_disk->private_data; struct cached_dev *dc = container_of(d, struct cached_dev, disk); - int cpu, rw = bio_data_dir(bio); + int rw = bio_data_dir(bio); - cpu = part_stat_lock(); - part_stat_inc(cpu, &d->disk->part0, ios[rw]); - part_stat_add(cpu, &d->disk->part0, sectors[rw], bio_sectors(bio)); - part_stat_unlock(); + generic_start_io_acct(rw, bio_sectors(bio), &d->disk->part0); bio->bi_bdev = dc->bdev; bio->bi_iter.bi_sector += dc->sb.data_offset; @@ -1074,12 +1066,9 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio) struct search *s; struct closure *cl; struct bcache_device *d = bio->bi_bdev->bd_disk->private_data; - int cpu, rw = bio_data_dir(bio); + int rw = bio_data_dir(bio); - cpu = part_stat_lock(); - part_stat_inc(cpu, &d->disk->part0, ios[rw]); - part_stat_add(cpu, &d->disk->part0, sectors[rw], bio_sectors(bio)); - part_stat_unlock(); + generic_start_io_acct(rw, bio_sectors(bio), &d->disk->part0); s = search_alloc(bio, d); cl = &s->cl; |