sum_open_stateid
args->seqid, sum_open_stateid(&args->open_stateid));
sum_open_stateid(&args->open_stateid));
args->seqid, sum_open_stateid(&args->open_stateid),
sum_open_stateid(&own->open_stateid), own->lock_seqid,
sum_open_stateid(&res->CLOSE4res_u.open_stateid));
sum_open_stateid(&res->OPEN_CONFIRM4res_u.resok4.
sum_open_stateid(&res->OPEN_DOWNGRADE4res_u.resok4.