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Bruce Fields" To: Steve Dickson Cc: Linux NFS Mailing list Subject: Re: [PATCH 0/7 V4] The NFSv4 only mounting daemon. Message-ID: <20210305143645.GA3813@fieldses.org> References: <20210224203053.GF11591@fieldses.org> <1553fb2d-9b8e-f8eb-8c72-edcd14a2ad08@RedHat.com> <20210303152342.GA1282@fieldses.org> <376b6b0a-5679-4692-cfdb-b8c7919393a5@RedHat.com> <20210303215415.GE3949@fieldses.org> <20210303221730.GH3949@fieldses.org> <80610f08-6f8d-1390-1875-068e63e744eb@RedHat.com> <20210304140617.GB17512@fieldses.org> <4204cd8e-f8c4-103e-bb69-a6bf720e65e9@RedHat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4204cd8e-f8c4-103e-bb69-a6bf720e65e9@RedHat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Thu, Mar 04, 2021 at 11:31:53AM -0500, Steve Dickson wrote: > > > On 3/4/21 9:06 AM, J. Bruce Fields wrote: > > On Thu, Mar 04, 2021 at 08:57:28AM -0500, Steve Dickson wrote: > >> Personally I see this is the first step away from V3... > >> > >> So what we don't need is all that RPC code, all the different mounting > >> versions... no RPC code at all, which also means no need for libtirpc... > >> That is a lot of code that goes away, which I think is a good thing. > > > > libtirpc is a shared library, it'll still be loaded as long as anyone > > needs it, and I'm not convinced we'll be able to get rid of all users. > > > >> I never thought it was a good idea to have mountd process > >> the v4 upcalls... I always thought it should be a different > >> deamon... and now we have one. > >> > >> A simple daemon that only processes v4 upcalls. > > > > I really do get the appeal, I've always liked the idea too. > > > > I'm not sure it's bringing us a real practical advantage at this point, > > compared to rpc.mountd, which can act either as a daemon that only > > processes v4 upcalls or can do both, depending on how you start it. > Right with some configuration changes... But I do think there is > value with have a package that will work right out of the box! > > Boom! Install the package and you have a working v4 server > with no configure changes... I do think there is value there. Installing rpms and enabling systemd units is also a form of configuration. So maybe it comes down to whether we'd rather configure a v4-only server with: dnf install nfsv4-only-server systemctl enable nfsv4-server vs. edit some stuff in /etc/nfs.conf My preference is for the second, but it's just a feeling, I don't really have an objective argument either way. Anyone else? --b.