Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20230619204826.755559-1-yukuai1@huaweicloud.com> <20230619204826.755559-7-yukuai1@huaweicloud.com>
In-Reply-To: <20230619204826.755559-7-yukuai1@huaweicloud.com>
From:   Xiao Ni <xni@redhat.com>
Date:   Tue, 20 Jun 2023 17:11:09 +0800
Message-ID: <CALTww28Ezy4NRvyYP7FOfcin7msGn8sr00HQFpfOEFsPyh8Asg@mail.gmail.com>
Subject: Re: [PATCH -next 6/8] md/md-multipath: enable io accounting
To:     Yu Kuai <yukuai1@huaweicloud.com>
Cc:     song@kernel.org, linux-raid@vger.kernel.org,
        linux-kernel@vger.kernel.org, yukuai3@huawei.com,
        yi.zhang@huawei.com, yangerkun@huawei.com
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Mon, Jun 19, 2023 at 8:50=E2=80=AFPM Yu Kuai <yukuai1@huaweicloud.com> w=
rote:
>
> From: Yu Kuai <yukuai3@huawei.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@huawei.com>
> ---
>  drivers/md/md-multipath.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c
> index 92c45be203d7..d22276870283 100644
> --- a/drivers/md/md-multipath.c
> +++ b/drivers/md/md-multipath.c
> @@ -107,6 +107,7 @@ static bool multipath_make_request(struct mddev *mdde=
v, struct bio * bio)
>             && md_flush_request(mddev, bio))
>                 return true;
>
> +       md_account_bio(mddev, &bio);
>         mp_bh =3D mempool_alloc(&conf->pool, GFP_NOIO);
>
>         mp_bh->master_bio =3D bio;
> --
> 2.39.2
>

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