Re: [PATCH 0/4] nfs41: allow layoutget at pnfs_do_multiple_writes

["J. Bruce Fields" <bfields@fieldses.org>]

On Tue, Nov 29, 2011 at 04:50:23PM -0800, Boaz Harrosh wrote:
> On 11/29/2011 04:37 PM, Trond Myklebust wrote:
> > On Tue, 2011-11-29 at 16:20 -0800, Marc Eshel wrote: 
> >> You ignored my main point, I was talking about the server side, my point 
> >> was that there is nothing to build on on the serve side since the pNFS 
> >> Linux server is not happening.
> >> Marc.
> > 
> > Sorry. I misunderstood your concern. As far as I know, the main problem
> > there is also one of investment: nobody has stepped up to help Bruce
> > write a pNFS server.
> > 
> 
> I use "OUR" Linux pNFS Server every day, all day. It's there it is written
> and it kicks us. We've been working on that for 5 Years now.
> 
> The only holding factor is that no one wants to do the final step and
> fight the VFS guys to actually push it into Linus.

As I've said before, my only requirement is that we hold off on merging
optional 4.1 features (like pNFS) until the *mandatory* parts of 4.1
comply with the spec.  Once that happens, I'm happy to help with merging
pNFS however I can, including working out any VFS problems.

Most of us have been assuming that the GFS2-backed server would be the
simplest to merge first, but with the client supporting all three layout
types, maybe it would be reasonable to start with the exofs-backed
server if that's in better shape.

To help the process along I'm continuing to maintain a 4.1 todo list:

	http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues#Highest_priority

I believe that could all be done relatively soon with some more help.

--b.


> But it is there and alive in full open-source glory in Benny's tree.
> 
> > I'm less worried about this now than I was earlier, because other open
> > source efforts are gaining traction (see Ganesha - which is being
> > sponsored by IBM, and projects such as Tigran's java based pNFS server).
> > The other point is that we've developed client test-rigs that don't
> > depend on the availability of a Linux server (newpynfs and the pynfs
> > based proxy).
> > 
> 
> For me I'm testing with the linux Server and it is just there and works
> well for me. Better than any other solution I have right now.
> 
> > Cheers
> >   Trond 
> > 
> 
> Ciao
> Heart
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