NFS: Add attribute update barriers to NFS writebacks
authorTrond Myklebust <trond.myklebust@primarydata.com>
Thu, 26 Feb 2015 22:36:09 +0000 (17:36 -0500)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Mon, 2 Mar 2015 04:23:06 +0000 (23:23 -0500)
Ensure that other operations that race with our write RPC calls
cannot revert the file size updates that were made on the server.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>

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