linux-kernel - Re: [PATCH -next 8/8] md/md-faulty: enable io accounting

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Date:   Tue, 20 Jun 2023 17:13:14 +0800
From:   Xiao Ni <xni@...hat.com>
To:     Yu Kuai <yukuai1@...weicloud.com>
Cc:     song@...nel.org, linux-raid@...r.kernel.org,
        linux-kernel@...r.kernel.org, yukuai3@...wei.com,
        yi.zhang@...wei.com, yangerkun@...wei.com
Subject: Re: [PATCH -next 8/8] md/md-faulty: enable io accounting

On Mon, Jun 19, 2023 at 8:50 PM Yu Kuai <yukuai1@...weicloud.com> wrote:
>
> From: Yu Kuai <yukuai3@...wei.com>
>
> use md_account_bio() to enable io accounting, also make sure
> mddev_suspend() will wait for all io to be done.
>
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> ---
>  drivers/md/md-faulty.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/md/md-faulty.c b/drivers/md/md-faulty.c
> index 50ad818978a4..a039e8e20f55 100644
> --- a/drivers/md/md-faulty.c
> +++ b/drivers/md/md-faulty.c
> @@ -204,6 +204,8 @@ static bool faulty_make_request(struct mddev *mddev, struct bio *bio)
>                         failit = 1;
>                 }
>         }
> +
> +       md_account_bio(mddev, &bio);
>         if (failit) {
>                 struct bio *b = bio_alloc_clone(conf->rdev->bdev, bio, GFP_NOIO,
>                                                 &mddev->bio_set);
> --
> 2.39.2
>

Reviewed-by: Xiao Ni <xni@...hat.com>