Re: [PATCH v4 09/11] 9p: darwin: Implement compatibility for mknodat

[Vivek Goyal <vgoyal@redhat.com>]

On Mon, Feb 07, 2022 at 11:49:12AM +0100, Greg Kurz wrote:
> On Mon, 7 Feb 2022 11:30:18 +0100
> Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
> 
> > On 7/2/22 09:47, Greg Kurz wrote:
> > > On Sun, 6 Feb 2022 20:10:23 -0500
> > > Will Cohen <wwcohen@gmail.com> wrote:
> > > 
> > >> This patch set currently places it in 9p-util only because 9p is the only
> > >> place where this issue seems to have come up so far and we were wary of
> > >> editing files too far afield, but I have no attachment to its specific
> > >> location!
> > >>
> > > 
> > > Inline comments are preferred on qemu-devel. Please don't top post !
> > > This complicates the review a lot.
> > > 
> > > This is indeed a good candidate for osdep. This being said, unless there's
> > > some other user in the QEMU code base, it is acceptable to leave it under
> > > 9pfs.
> > 
> > virtiofsd could eventually use it.
> 
> 
> Indeed but virtiofsd is for linux hosts only AFAICT and I'm not aware of any
> work to support any other host OS.

[ CC Sergio ]

Will like to support virtiofs on other host OS. Getting rid of Linux
specific parts should be doable. I think bigger challenge is how to
make vhost-user stuff work on other OS, like macOS.

If virtiofsd was somehow running as part of qemu (and not as a separate
process), then making rest of the filesystem code to work on other
OS should not be too hard, I guess.

So question is, can one somehow run same virtiofsd code both as part
of qemu as well as separate daemon based on need (and one does not have
to maintain two separate code bases).

Thanks
Vivek

> 
> Cc'ing virtio-fs people for inputs on this topic.
>