dq_ihardlimit
dq->dq_ihardlimit == 0 && dq->dq_bhardlimit == 0)
dq->dq_ihardlimit = dqb32->dqb_ihardlimit;
dq->dq_ihardlimit = be64toh(dqb64->dqb_ihardlimit);
dqb32->dqb_ihardlimit = CLIP32(dq->dq_ihardlimit);
dqb64->dqb_ihardlimit = htobe64(dq->dq_ihardlimit);
if (ncurinodes >= dq->dq_ihardlimit && dq->dq_ihardlimit) {
dq->dq_ihardlimit == 0 && dq->dq_bhardlimit == 0)