We can do the accounting between make_request and io is finished, also
introduce start_time accordingly.
Signed-off-by: Guoqing Jiang <jiangguoqing@xxxxxxxxxx>
---
drivers/md/md-multipath.c | 5 +++++
drivers/md/md-multipath.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c
index 776bbe542db5..17cf35f4acdb 100644
--- a/drivers/md/md-multipath.c
+++ b/drivers/md/md-multipath.c
@@ -71,6 +71,8 @@ static void multipath_end_bh_io(struct multipath_bh *mp_bh, blk_status_t status)
struct mpconf *conf = mp_bh->mddev->private;
bio->bi_status = status;
+ if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
+ bio_end_io_acct_remapped(bio, mp_bh->start_time, bio->bi_bdev);
bio_endio(bio);
mempool_free(mp_bh, &conf->pool);
}
@@ -124,6 +126,9 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio)
bio_init(&mp_bh->bio, NULL, 0);
__bio_clone_fast(&mp_bh->bio, bio);
+ if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
+ mp_bh->start_time = bio_start_io_acct(bio);
+
mp_bh->bio.bi_iter.bi_sector += multipath->rdev->data_offset;
bio_set_dev(&mp_bh->bio, multipath->rdev->bdev);
mp_bh->bio.bi_opf |= REQ_FAILFAST_TRANSPORT;
diff --git a/drivers/md/md-multipath.h b/drivers/md/md-multipath.h
index b3099e5fc4d7..71376d95eac0 100644
--- a/drivers/md/md-multipath.h
+++ b/drivers/md/md-multipath.h
@@ -28,5 +28,6 @@ struct multipath_bh {
struct bio bio;
int path;
struct list_head retry_list;
+ unsigned long start_time;
};
#endif
--
2.25.1
