OP_LAYOUTSTATS
return decode_op_hdr(xdr, OP_LAYOUTSTATS);
encode_op_hdr(xdr, OP_LAYOUTSTATS, decode_layoutstats_maxsz, hdr);
[OP_LAYOUTSTATS] = nfsd4_decode_notsupp,
[OP_LAYOUTSTATS] = nfsd4_encode_noop,