[PATCH 0/2] RE: NFSv4: truncate returns I/O error

From: Trond Myklebust
Date: Wed Mar 07 2012 - 17:41:06 EST


Hi Miklos,

The base cause of the test failure was that the client was holding
onto a read delegation while trying to truncate the file. Whereas
some servers allow the client to do this (provided that nobody else
holds a read delegation), the Linux server does not, and returns
an error.
The fix is therefore to return the delegation if the server rejects
our attempt (see patch 2/2).

I've included patch 1/2 since it too was already queued for the
stable@xxxxxxxxxxxxxxx queue, and so 2/2 has a dependency...

Thanks for the bug report!

Cheers
Trond

Trond Myklebust (2):
NFS: Properly handle the case where the delegation is revoked
NFSv4: Return the delegation if the server returns NFS4ERR_OPENMODE

fs/nfs/delegation.c | 11 +++++++++++
fs/nfs/delegation.h | 1 +
fs/nfs/nfs4_fs.h | 3 +++
fs/nfs/nfs4proc.c | 31 ++++++++++++++++++++++++++++---
fs/nfs/nfs4state.c | 29 +++++++++++++++++++++++++++--
5 files changed, 70 insertions(+), 5 deletions(-)

--
1.7.7.6

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