[NFS] New version of Linux NFSv3 client is out...

[Trond Myklebust]

>>>>> " " == David S Miller <davem en redhat.com> writes:

     >    From: Trond Myklebust <trond.myklebust en fys.uio.no> Date: 25
     >    Jan 2000 09:55:55 +0100

     >    Please note that the knfsd server has consistently violated
     >    this part of the NFSv2 protocol: knfsd acknowledges a write
     >    statement from the client without ensuring that data has
     >    been flushed to disk, thus the client is not guaranteed that
     >    anything it has written will survive a server failure.

     > Come again?  I see a nfsd_sync and a write_inode_now there in
     > the knfsd write paths.

nfsd_sync is only called if the write gathering code is enabled
(which is never the case at the moment).

You have to explicitly set the 'sync' option in /etc/exports in order
for the write_inode_now() stuff to be called.

Hence, the default behaviour is to violate the NFSv2 protocol.

Cheers,
  Trond

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