From owner-freebsd-chat  Fri Feb 18 10:45:22 2000
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Date: Fri, 18 Feb 2000 11:12:02 -0800
From: Alfred Perlstein <bright@wintelcom.net>
To: Terry Lambert <tlambert@primenet.com>
Cc: Brooks Davis <brooks@one-eyed-alien.net>,
	Brad Knowles <blk@skynet.be>, Brett Taylor <brett@peloton.runet.edu>,
	Jonathon McKitrick <jcm@dogma.freebsd-uk.eu.org>,
	Jonathon McKitrick <j_mckitrick@usa.net>, chat@FreeBSD.ORG
Subject: Re: BSD vs Linux comments
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References: <20000217160350.B2343@orion.ac.hmc.edu> <200002181724.KAA02756@usr06.primenet.com>
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* Terry Lambert <tlambert@primenet.com> [000218 09:59] wrote:
> > > 	last I checked, although Matt had fixed the NFS itself, we still 
> > > didn't have a functional lockd, so I'm not sure we should be casting 
> > > stones on this.
> > 
> > We've got one in development though (see recent posts by David Cross) and
> > the reset of the implementation is actually stable thanks to all of
> > Matt's work.  There's obviously work left to do, but we certaintly don't
> > have much to be ashamed of in this catagory.
> 
> 
> It is my understanding that this is server locking code only, and
> may still have some issues with the POSIX locking semantics.
> 
> The client locking code requires a reorganization of the VOP_ADVLOCK
> code, if it is ever to work with layering.
> 
> Which reminds me that I need to send mail off to the IETF NFSv4
> working group to include delayed coelescing in the next RFC draft,
> or stacking layers will never work with more that one instance of
> an NFS file system...

Please do!  I really don't want another couple of years to go by
with a broken standard, don't forget to explain to them that to
really get it right (in your own words) you do need the two pass
locking, not the downward reserve/ upward commit method though.

thanks,
-Alfred


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