nfsd_rename
resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
resp->status = nfsd_rename(rqstp, &argp->ffh, argp->fname, argp->flen,
__be32 nfsd_rename(struct svc_rqst *,