NFSv4: Propagate the error NFS4ERR_BADOWNER to nfs4_do_setattr

This will be required in order to switch uid/gid mapping back on if the
admin has tried to disable it.

Note that we also propagate NFS4ERR_BADNAME at the same time, in order to
work around a Linux server bug.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/nfs4proc.c

@@ -85,6 +85,9 @@ static int nfs4_map_errors(int err)
 	switch (err) {
 	case -NFS4ERR_RESOURCE:
 		return -EREMOTEIO;
+	case -NFS4ERR_BADOWNER:
+	case -NFS4ERR_BADNAME:
+		return -EINVAL;
 	default:
 		dprintk("%s could not handle NFSv4 error %d\n",
 				__func__, -err);