ef10e6ad65c9138ec576f82c08f32e6f32c
author Chuck Lever <chuck.lever@oracle.com> 1265051861 -0500
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1265808664 -0500

NFS: Improve NFS iostat byte count accuracy for writes

The bytes counted by the performance counters for NFS writes should
reflect write and sync errors.  If the write(2) system call reports
an error, the bytes should not be counted.  And, if the write is
short, the actual number of bytes that was written should be counted,
not the number of bytes that was requested.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
>