int adjust;
int32_t adjust;
__db_ovref(dbp, pgno, adjust)	DB *dbp;	db_pgno_t pgno;	int adjust;{	PAGE *h;	int ret;	if ((ret = memp_fget(dbp->mpf, &pgno, 0, &h)) != 0) {		(void)__db_pgerr(dbp, pgno);		return (ret);	}	if (DB_LOGGING(dbp))		if ((ret = __db_ovref_log(dbp->dbenv->lg_info, dbp->txn,		    &LSN(h), 0, dbp->log_fileid, h->pgno, (int32_t)adjust,		    &LSN(h))) != 0)			return (ret);	OV_REF(h) += adjust;	(void)memp_fput(dbp->mpf, h, DB_MPOOL_DIRTY);	return (0);}