[AFS3-std] RxOSD claim on 2 structure members

[Hartmut Reuter]

Tom Keiser wrote:
> On Sun, Jun 7, 2009 at 1:51 PM, Matt W. Benjamin<matt@linuxbox.com> wrote:
>> Hi,
>>
>> A priority for openafs is to merge the rxosd changeset.  One obstacle to merging is the use of two 'unused' members in existing structures without prior coordination.  We've been asked to move discussion of the topic into this forum, which we hereby do.
>>
> 
> Hi Matt,
> 
> Perhaps I'm missing some context since I couldn't make it to the
> workshop this year, but I sense that we're really getting ahead of
> ourselves -- rxosd (at least in the 1.4.8 tarball I received at the
> Google hackathon) is neither cache coherent, nor consistent.  Until
> we, as a community, have a chance to re-architect rxosd to follow afs3
> semantics, and to properly support transactional semantics with regard
> to vnodes and the volume package, I think it's premature to talk about
> how afs3 should be modified to deal with these namespace collisions.

Tom, could you please explain why you think AFS with rxosd would be
neither cache coherent nor consistent?

Hartmut

> 
> Regards,
> 
> -Tom
> tkeiser@sinenomine.net


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Hartmut Reuter                  e-mail 		reuter@rzg.mpg.de
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