Re: pNFS read/write behavior change in 2.6.39

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On Tue, 2011-04-26 at 16:03 +0200, Tigran Mkrtchyan wrote:
> I run 2.6.39-0.rc4.git2.0 build for fedora-16 build by redhat.
> Probably Steve and Bruce can comment on the patch set.
> 
> My observation is that state id provided by client on read to
> DS dit not contain correct stateid:
> 
> struct stateid4 {
>          uint32_t        seqid;
>          opaque          other[12];
> };
> 
> The seqid equals to zero when client send it to DS which is not the
> value returned on OPEN.

Why do you think this is a bug? Section 8.2.2 of RFC5661 not only allows
this behaviour, it actually suggests it is appropriate for READ and
WRITE since it means that the server isn't forced to constantly check
the seqid value.

Trond
-- 
Trond Myklebust
Linux NFS client maintainer

NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com

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