nfsd: don't use the deferral service, return NFS4ERR_DELAY

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On an NFSv4.1 server cache miss that causes an upcall, NFS4ERR_DELAY will be
returned. It is up to the NFSv4.1 client to resend only the operations that
have not been processed.

Initialize rq_usedeferral to 1 in svc_process(). It sill be turned off in
nfsd4_proc_compound() only when NFSv4.1 Sessions are used.

Note: this isn't an adequate solution on its own. It's acceptable as a way
to get some minimal 4.1 up and working, but we're going to have to find a
way to avoid returning DELAY in all common cases before 4.1 can really be
considered ready.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfsd41: reverse rq_nodeferral negative logic]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[sunrpc: initialize rq_usedeferral]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

...

This commit is contained in:

Andy Adamson 2009-04-03 08:27:32 +03:00 • committed by J. Bruce Fields

parent 2076601632

commit 2f425878b6

4 changed files with 12 additions and 1 deletions

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8

fs/nfsd/nfs4proc.c

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1

include/linux/sunrpc/svc.h

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2

net/sunrpc/svc.c

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2

net/sunrpc/svc_xprt.c

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