Re: [PATCH v2] Deprecate C virtiofsd

[Richard W.M. Jones]

On Thu, Feb 10, 2022 at 05:47:14PM +0000, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> 
> There's a nice new Rust implementation out there; recommend people
> do new work on that.
> 
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> ---
>  docs/about/deprecated.rst | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
> index 47a594a3b6..3c73d22729 100644
> --- a/docs/about/deprecated.rst
> +++ b/docs/about/deprecated.rst
> @@ -454,3 +454,20 @@ nanoMIPS ISA
>  
>  The ``nanoMIPS`` ISA has never been upstreamed to any compiler toolchain.
>  As it is hard to generate binaries for it, declare it deprecated.
> +
> +Tools
> +-----
> +
> +virtiofsd
> +'''''''''
> +
> +There is a new Rust implementation of ``virtiofsd`` at
> +``https://gitlab.com/virtio-fs/virtiofsd``;
> +since this is now marked stable, new development should be done on that
> +rather than the existing C version in the QEMU tree.
> +The C version will still accept fixes and patches that
> +are already in development for the moment, but will eventually
> +be deleted from this tree.
> +New deployments should use the Rust version, and existing systems
> +should consider moving to it.  The command line and feature set
> +is very close and moving should be simple.

I'm not qualified to say if the Rust impl is complete enough
to replace the C version, so I won't add a reviewed tag.

However I want to say that from the point of view of downstream
packagers of qemu -- especially Fedora -- it would be helpful if we
could direct both upstream development effort and downstream packaging
into just the one virtiofsd.  So I agree in principle with this.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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