Re: [PATCH v2] Deprecate C virtiofsd

["Dr. David Alan Gilbert" <dgilbert@redhat.com>]

* Richard W.M. Jones (rjones@redhat.com) wrote:
> 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.

We believe it is a complete replacement at this point, with compatible
command line.

Dave

> 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
> Read my programming and virtualization blog: http://rwmj.wordpress.com
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> live CD or over the network (PXE) and turn machines into KVM guests.
> http://libguestfs.org/virt-v2v
> 
-- 
Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK