linux-kernel - Re: [PATCH] block/rnbd: send_msg_close if any error occurs after send_msg

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Date:   Fri, 18 Sep 2020 10:18:26 +0200
From:   Jinpu Wang <jinpu.wang@...ud.ionos.com>
To:     Gioh Kim <gi-oh.kim@...ud.ionos.com>
Cc:     Danil Kipnis <danil.kipnis@...ud.ionos.com>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block/rnbd: send_msg_close if any error occurs after send_msg_open

On Fri, Sep 18, 2020 at 9:24 AM Gioh Kim <gi-oh.kim@...ud.ionos.com> wrote:
>
> From: Gioh Kim <gi-oh.kim@...ud.ionos.com>
>
> After send_msg_open is done, send_msg_close should be done
> if any error occurs and it is necessary to recover
> what has been done.
>
> Signed-off-by: Gioh Kim <gi-oh.kim@...ud.ionos.com>
Looks good to me!
Thanks!
Acked-by: Jack Wang <jinpu.wang@...ud.ionos.com>
> ---
>  drivers/block/rnbd/rnbd-clt.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
> index cc6a4e2587ae..4a24603d5224 100644
> --- a/drivers/block/rnbd/rnbd-clt.c
> +++ b/drivers/block/rnbd/rnbd-clt.c
> @@ -1520,7 +1520,7 @@ struct rnbd_clt_dev *rnbd_clt_map_device(const char *sessname,
>                               "map_device: Failed to configure device, err: %d\n",
>                               ret);
>                 mutex_unlock(&dev->lock);
> -               goto del_dev;
> +               goto send_close;
>         }
>
>         rnbd_clt_info(dev,
> @@ -1539,6 +1539,8 @@ struct rnbd_clt_dev *rnbd_clt_map_device(const char *sessname,
>
>         return dev;
>
> +send_close:
> +       send_msg_close(dev, dev->device_id, WAIT);
>  del_dev:
>         delete_dev(dev);
>  put_dev:
> --
> 2.20.1
>