Date: Fri, 20 Mar 2009 12:03:57 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: Zachary Loafman <zachary.loafman@isilon.com> Cc: Alfred Perlstein <alfred@freebsd.org>, freebsd-arch@freebsd.org Subject: Re: NFS version 4.0 for FreeBSD-CURRENT Message-ID: <Pine.GSO.4.63.0903201149590.23530@muncher.cs.uoguelph.ca> In-Reply-To: <20090319164251.GA13081@zloafman.west.isilon.com> References: <Pine.GSO.4.63.0903151520590.16993@muncher.cs.uoguelph.ca> <20090315205229.GV55200@elvis.mu.org> <Pine.GSO.4.63.0903151702440.1646@muncher.cs.uoguelph.ca> <20090319164251.GA13081@zloafman.west.isilon.com>
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On Thu, 19 Mar 2009, Zachary Loafman wrote:
[good stuff snipped]
>
> I don't know if that affects the timing on this being merged to CURRENT
> or not. It might be nice if we had an opportunity to review some things
> prior to APIs/VOPs being set in stone, but it would also be nice to get
> wider exposure for Rick's code.
>
Other than the va_filerev/i_modrev issue already mentioned (btw, I grep'd
/usr/src and nothing uses va_filerev outside the kernel, it seems), I
realized there is another API/VOP issue (kinda in the trivial category,
but I should mention it). FreeBSD-CURRENT is out of bits for mnt_flag (the
last spare one is used by Edward's ACL code) and it would be nice to add a
couple of MNT_EXxxx flags for things like enabling/disabling delegations.
Two obvious possible solutions:
1 - bump mnt_flag up to 64 bits
2 - create a separate mnt_exflag field
[more stuff snipped]
>
> I think v4.1 is closer than you might think. We've received numerous
> requests for pNFS, and I think many vendors will ship basic 4.1 stacks
> this year.
>
I emailed a request for "predictions" about this on nfsv4@linux-nfs.org
and I've only gotten one response sofar:
[Tom Haynes wrote]
Subject: Re: nfsv4.1 timeframe
Rick Macklem wrote:
> Anyone feel like making a prediction? (Ideally somewhat realistic:-)
>
Next year sounds more realistic based on what I saw at Connectathon.
I'll post more responses if I get them, rick
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