VOP_FSYNC() expects to be called with the vnode locked, so lock fvp in nfs_rename() before calling VOP_FSYNC() and unlock fvp immediately after.
VOP_FSYNC() expects to be called with the vnode locked, so lock fvp in
nfs_rename() before calling VOP_FSYNC() and unlock fvp immediately after.

Reviewed by:	bde

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase