K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2017-09-24T20:05:48.220740Z
K 7
svn:log
V 275
Change a panic to an error return.

There was a panic() in the NFS server's write operation that didn't
need to be a panic() and could just be an error return.
This patch makes that change.
Found by code inspection during development of the pNFS service.

MFC after:	2 weeks

END