diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-01-24 13:02:37 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-01-25 04:17:20 +0300 |
| commit | 99dfc43ecbf67f12a06512918aaba61d55863efc (patch) | |
| tree | b31f16b3272c8bef4c90c73e7383de74a64aee3c /drivers/md/md.c | |
| parent | 30c5d3456c272f0de0d7e7eb9fc355fa64a5f649 (diff) | |
| download | linux-99dfc43ecbf67f12a06512918aaba61d55863efc.tar.xz | |
block: use ->bi_bdev for bio based I/O accounting
Rework the I/O accounting for bio based drivers to use ->bi_bdev. This
means all drivers can now simply use bio_start_io_acct to start
accounting, and it will take partitions into account automatically. To
end I/O account either bio_end_io_acct can be used if the driver never
remaps I/O to a different device, or bio_end_io_acct_remapped if the
driver did remap the I/O.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index cf06dbb1aa53..7d1bb24add31 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -463,8 +463,8 @@ struct md_io { struct mddev *mddev; bio_end_io_t *orig_bi_end_io; void *orig_bi_private; + struct block_device *orig_bi_bdev; unsigned long start_time; - struct block_device *part; }; static void md_end_io(struct bio *bio) @@ -472,7 +472,7 @@ static void md_end_io(struct bio *bio) struct md_io *md_io = bio->bi_private; struct mddev *mddev = md_io->mddev; - part_end_io_acct(md_io->part, bio, md_io->start_time); + bio_end_io_acct_remapped(bio, md_io->start_time, md_io->orig_bi_bdev); bio->bi_end_io = md_io->orig_bi_end_io; bio->bi_private = md_io->orig_bi_private; @@ -514,12 +514,12 @@ static blk_qc_t md_submit_bio(struct bio *bio) md_io->mddev = mddev; md_io->orig_bi_end_io = bio->bi_end_io; md_io->orig_bi_private = bio->bi_private; + md_io->orig_bi_bdev = bio->bi_bdev; bio->bi_end_io = md_end_io; bio->bi_private = md_io; - md_io->start_time = part_start_io_acct(mddev->gendisk, - &md_io->part, bio); + md_io->start_time = bio_start_io_acct(bio); } /* bio could be mergeable after passing to underlayer */ |