linux-kernel - Re: [PATCH net-next v11 05/13] vsock: add netns support to virtio transports

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Message-ID: <aSC3lwPvj0G6L8Sh@devvm11784.nha0.facebook.com>
Date: Fri, 21 Nov 2025 11:03:51 -0800
From: Bobby Eshleman <bobbyeshleman@...il.com>
To: Stefano Garzarella <sgarzare@...hat.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Stefan Hajnoczi <stefanha@...hat.com>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Eugenio Pérez <eperezma@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
	Bryan Tan <bryan-bt.tan@...adcom.com>,
	Vishnu Dasa <vishnu.dasa@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org,
	virtualization@...ts.linux.dev, netdev@...r.kernel.org,
	kvm@...r.kernel.org, linux-hyperv@...r.kernel.org,
	linux-kselftest@...r.kernel.org, berrange@...hat.com,
	Sargun Dhillon <sargun@...gun.me>,
	Bobby Eshleman <bobbyeshleman@...a.com>
Subject: Re: [PATCH net-next v11 05/13] vsock: add netns support to virtio
 transports

On Fri, Nov 21, 2025 at 03:39:25PM +0100, Stefano Garzarella wrote:
> On Thu, Nov 20, 2025 at 09:44:37PM -0800, Bobby Eshleman wrote:
> > From: Bobby Eshleman <bobbyeshleman@...a.com>
> > 
> > Add netns support to loopback and vhost. Keep netns disabled for
> > virtio-vsock, but add necessary changes to comply with common API
> > updates.
> > 
> > This is the patch in the series when vhost-vsock namespaces actually
> > come online.  Hence, vhost_transport_supports_local_mode() is switched
> > to return true.
> > 
> > Signed-off-by: Bobby Eshleman <bobbyeshleman@...a.com>
> > ---
> > Changes in v11:
> > - reorder with the skb ownership patch for loopback (Stefano)
> > - toggle vhost_transport_supports_local_mode() to true
> > 
> > Changes in v10:
> > - Splitting patches complicates the series with meaningless placeholder
> >  values that eventually get replaced anyway, so to avoid that this
> >  patch combines into one. Links to previous patches here:
> >  - Link: https://lore.kernel.org/all/20251111-vsock-vmtest-v9-3-852787a37bed@meta.com/
> >  - Link: https://lore.kernel.org/all/20251111-vsock-vmtest-v9-6-852787a37bed@meta.com/
> >  - Link: https://lore.kernel.org/all/20251111-vsock-vmtest-v9-7-852787a37bed@meta.com/
> > - remove placeholder values (Stefano)
> > - update comment describe net/net_mode for
> >  virtio_transport_reset_no_sock()
> > ---
> > drivers/vhost/vsock.c                   | 47 ++++++++++++++++++------
> > include/linux/virtio_vsock.h            |  8 +++--
> > net/vmw_vsock/virtio_transport.c        | 10 ++++--
> > net/vmw_vsock/virtio_transport_common.c | 63 ++++++++++++++++++++++++---------
> > net/vmw_vsock/vsock_loopback.c          |  8 +++--
> > 5 files changed, 103 insertions(+), 33 deletions(-)
> 
> Reviewed-by: Stefano Garzarella <sgarzare@...hat.com>

If we move the supports_local_mode() changes into this patch (for virtio
and loopback, as I bring up in other discussion), should I drop this
trailer or carry it forward?

Thanks,
Bobby