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From: Guoqing Jiang <jgq516@gmail.com>
To: song@kernel.org
Cc: linux-raid@vger.kernel.org, artur.paszkiewicz@intel.com
Subject: [PATCH V2 6/7] md/raid10: enable io accounting
Date: Fri, 21 May 2021 08:55:20 +0800	[thread overview]
Message-ID: <20210521005521.713106-7-jiangguoqing@kylinos.cn> (raw)
In-Reply-To: <20210521005521.713106-1-jiangguoqing@kylinos.cn>

For raid10, we record the start time between split bio and clone bio,
and finish the accounting in the final endio.

Also introduce start_time in r10bio accordingly.

Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
---
 drivers/md/raid10.c | 6 ++++++
 drivers/md/raid10.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 13f5e6b2a73d..16977e8e075d 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -297,6 +297,8 @@ static void raid_end_bio_io(struct r10bio *r10_bio)
 	if (!test_bit(R10BIO_Uptodate, &r10_bio->state))
 		bio->bi_status = BLK_STS_IOERR;
 
+	if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
+		bio_end_io_acct(bio, r10_bio->start_time);
 	bio_endio(bio);
 	/*
 	 * Wake up any possible resync thread that waits for the device
@@ -1184,6 +1186,8 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio,
 	}
 	slot = r10_bio->read_slot;
 
+	if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
+		r10_bio->start_time = bio_start_io_acct(bio);
 	read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set);
 
 	r10_bio->devs[slot].bio = read_bio;
@@ -1483,6 +1487,8 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
 		r10_bio->master_bio = bio;
 	}
 
+	if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
+		r10_bio->start_time = bio_start_io_acct(bio);
 	atomic_set(&r10_bio->remaining, 1);
 	md_bitmap_startwrite(mddev->bitmap, r10_bio->sector, r10_bio->sectors, 0);
 
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 1461fd55311b..c34bb196790e 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -124,6 +124,7 @@ struct r10bio {
 	sector_t		sector;	/* virtual sector number */
 	int			sectors;
 	unsigned long		state;
+	unsigned long		start_time;
 	struct mddev		*mddev;
 	/*
 	 * original bio going to /dev/mdx
-- 
2.25.1


  parent reply	other threads:[~2021-05-21  0:56 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21  0:55 [PATCH V2 0/7] md: io stats accounting Guoqing Jiang
2021-05-21  0:55 ` [PATCH V2 1/7] md: revert " Guoqing Jiang
2021-05-21  0:55 ` [PATCH V2 2/7] md: add accounting_bio for raid0 and raid5 Guoqing Jiang
2021-05-24  5:48   ` Song Liu
2021-05-24  8:45   ` Christoph Hellwig
2021-05-21  0:55 ` [PATCH V2 3/7] md: the latest try for improve io stats accounting Guoqing Jiang
2021-05-21  7:32   ` Artur Paszkiewicz
2021-05-21  7:43     ` Guoqing Jiang
2021-05-21  0:55 ` [PATCH V2 4/7] md/raid1: rename print_msg with r1bio_existed Guoqing Jiang
2021-05-21  0:55 ` [PATCH V2 5/7] md/raid1: enable io accounting Guoqing Jiang
2021-05-21  0:55 ` Guoqing Jiang [this message]
2021-05-21  0:55 ` [PATCH V2 7/7] md: mark some personalities as deprecated Guoqing Jiang
2021-05-21  8:00 ` [UPDATE PATCH V2 3/7] md: the latest try for improve io stats accounting Guoqing Jiang
2021-05-24  5:49   ` Song Liu
2021-05-24  6:04 ` [PATCH V2 0/7] md: " Song Liu
2021-05-27 14:09   ` Paweł Wiejacha

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