linux-kernel - Re: [PATCH V2 1/3] vhost-vdpa: flush workers on suspend

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Message-ID: <CAJaqyWdOYHA21A2JUwnTmWfSro7H0ZTTTkkH7Ot9F8hwK+TKXw@mail.gmail.com>
Date: Tue, 13 Feb 2024 16:58:54 +0100
From: Eugenio Perez Martin <eperezma@...hat.com>
To: Steve Sistare <steven.sistare@...cle.com>
Cc: virtualization@...ts.linux-foundation.org, linux-kernel@...r.kernel.org, 
	"Michael S. Tsirkin" <mst@...hat.com>, Jason Wang <jasowang@...hat.com>, Si-Wei Liu <si-wei.liu@...cle.com>, 
	Xie Yongji <xieyongji@...edance.com>, Stefano Garzarella <sgarzare@...hat.com>
Subject: Re: [PATCH V2 1/3] vhost-vdpa: flush workers on suspend

On Mon, Feb 12, 2024 at 6:16 PM Steve Sistare <steven.sistare@...cle.com> wrote:
>
> Flush to guarantee no workers are running when suspend returns.
>
> Signed-off-by: Steve Sistare <steven.sistare@...cle.com>

Acked-by: Eugenio Pérez <eperezma@...hat.com>

Should this have a Fixes tag?

> ---
>  drivers/vhost/vdpa.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> index bc4a51e4638b..a3b986c24805 100644
> --- a/drivers/vhost/vdpa.c
> +++ b/drivers/vhost/vdpa.c
> @@ -594,10 +594,13 @@ static long vhost_vdpa_suspend(struct vhost_vdpa *v)
>         struct vdpa_device *vdpa = v->vdpa;
>         const struct vdpa_config_ops *ops = vdpa->config;
>         int ret;
> +       struct vhost_dev *vdev = &v->vdev;
>
>         if (!ops->suspend)
>                 return -EOPNOTSUPP;
>
> +       vhost_dev_flush(vdev);
> +
>         ret = ops->suspend(vdpa);
>         if (!ret)
>                 v->suspended = true;
> --
> 2.39.3
>