linux-kernel - Re: [PATCH v9 3/4] vhost: add VHOST_FORK_FROM_OWNER ioctl and validate inherit

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Message-ID: <CACGkMEuki8JnD-5OGk15nhzrthdb78refcDUv2EeKgejSCQfew@mail.gmail.com>
Date: Mon, 21 Apr 2025 11:40:57 +0800
From: Jason Wang <jasowang@...hat.com>
To: Cindy Lu <lulu@...hat.com>
Cc: mst@...hat.com, michael.christie@...cle.com, sgarzare@...hat.com, 
	linux-kernel@...r.kernel.org, virtualization@...ts.linux-foundation.org, 
	netdev@...r.kernel.org
Subject: Re: [PATCH v9 3/4] vhost: add VHOST_FORK_FROM_OWNER ioctl and
 validate inherit_owner

On Mon, Apr 21, 2025 at 10:45 AM Cindy Lu <lulu@...hat.com> wrote:
>
> Add a new UAPI to configure the vhost device to use the kthread mode.
> The userspace application can use IOCTL VHOST_FORK_FROM_OWNER
> to choose between owner and kthread mode if necessary.
> This setting must be applied before VHOST_SET_OWNER, as the worker
> will be created in the VHOST_SET_OWNER function.
>
> In addition, the VHOST_NEW_WORKER requires the inherit_owner
> setting to be true. So we need to add a check for this.
>
> Signed-off-by: Cindy Lu <lulu@...hat.com>

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

Thanks