linux-kernel - Re: [PATCH] virtio_vdpa: Support surprise removal of virtio vdpa device

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Message-ID: <CACGkMEvPnsDHn_gUdq2g2_Xzzqp8KVVhpaApnssYT9NT=mgm1A@mail.gmail.com>
Date:   Tue, 11 Jan 2022 12:37:49 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     李东升 <lidongsheng@...udpu.com>
Cc:     mst <mst@...hat.com>,
        virtualization <virtualization@...ts.linux-foundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] virtio_vdpa: Support surprise removal of virtio vdpa device

On Tue, Jan 11, 2022 at 11:38 AM 李东升 <lidongsheng@...udpu.com> wrote:
>
> When virtio vdpa device removed, the abnormal damage of the device cannot be
> perceived normally, which will cause problems similar to:
>
> 43bb40c5b926
>
> Hence, add the ability to abort the command on surprise removal
>
> Signed-off-by: dongsheng li <lidongsheng@...udpu.com>

Acked-by: Jason Wang <jasowang@...hat.com>

> ---
>  drivers/virtio/virtio_vdpa.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c
> index 4a9ddb44b2a7..fd930409d190 100644
> --- a/drivers/virtio/virtio_vdpa.c
> +++ b/drivers/virtio/virtio_vdpa.c
> @@ -374,6 +374,7 @@ static void virtio_vdpa_remove(struct vdpa_device *vdpa)
>  {
>   struct virtio_vdpa_device *vd_dev = vdpa_get_drvdata(vdpa);
>
> + virtio_break_device(vd_dev->vdev);
>   unregister_virtio_device(&vd_dev->vdev);
>  }
>
> --
> 2.17.1