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md/raid1: enable io accounting

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For raid1, we record the start time between split bio and clone bio,
and finish the accounting in the final endio.

Also introduce start_time in r1bio accordingly.

Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Signed-off-by: Song Liu <song@kernel.org>
This commit is contained in:
Guoqing Jiang 2021-05-25 17:46:21 +08:00 committed by Song Liu
parent 9b8ae7b938
commit a0159832e5
2 changed files with 8 additions and 0 deletions
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7
drivers/md/raid1.c
View File

@ -300,6 +300,8 @@ static void call_bio_endio(struct r1bio *r1_bio)
if (!test_bit(R1BIO_Uptodate, &r1_bio->state))
bio->bi_status = BLK_STS_IOERR;
if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
bio_end_io_acct(bio, r1_bio->start_time);
bio_endio(bio);
}
@ -1292,6 +1294,9 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio,
r1_bio->read_disk = rdisk;
if (!r1bio_existed && blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
r1_bio->start_time = bio_start_io_acct(bio);
read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set);
r1_bio->bios[rdisk] = read_bio;
@ -1461,6 +1466,8 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
r1_bio->sectors = max_sectors;
}
if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
r1_bio->start_time = bio_start_io_acct(bio);
atomic_set(&r1_bio->remaining, 1);
atomic_set(&r1_bio->behind_remaining, 0);

1
drivers/md/raid1.h
View File

@ -158,6 +158,7 @@ struct r1bio {
sector_t sector;
int sectors;
unsigned long state;
unsigned long start_time;
struct mddev *mddev;
/*
* original bio going to /dev/mdx