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[82.30.61.225]) by smtp.gmail.com with ESMTPSA id f7sm22750239wrz.40.2022.02.14.03.30.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Feb 2022 03:30:05 -0800 (PST) Date: Mon, 14 Feb 2022 11:30:03 +0000 From: "Dr. David Alan Gilbert" To: "Richard W.M. Jones" Subject: Re: [PATCH v2] Deprecate C virtiofsd Message-ID: References: <20220210174714.19843-1-dgilbert@redhat.com> <20220210204404.GA22879@redhat.com> MIME-Version: 1.0 In-Reply-To: <20220210204404.GA22879@redhat.com> User-Agent: Mutt/2.1.5 (2021-12-30) Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dgilbert@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=170.10.129.124; envelope-from=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: berrange@redhat.com, slp@redhat.com, qemu-devel@nongnu.org, virtio-fs@redhat.com, stefanha@redhat.com, vgoyal@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" * 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" > > > > There's a nice new Rust implementation out there; recommend people > > do new work on that. > > > > Signed-off-by: Dr. David Alan Gilbert > > --- > > 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 > virt-p2v converts physical machines to virtual machines. Boot with a > 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