blkptrtodb
bp->b_blkno = blkptrtodb(ump, daddr);
*bnp = blkptrtodb(ump, ip->i_db[bn]);
*bnp = blkptrtodb(ump, daddr);
error = ffs_breadz(ump, ITOV(ip), lbn, blkptrtodb(ump, blkno),
bp->b_blkno = blkptrtodb(ump, daddr);
*bnp = blkptrtodb(ump, DIP(ip, i_db[bn]));
*bnp = blkptrtodb(ump, ip->i_din2->di_extb[-1 - bn]);
*bnp = IS_SNAPSHOT(ip) ? blkptrtodb(ump,
*bnp = blkptrtodb(ump, daddr);
*bnp = blkptrtodb(ump, bn * ump->um_seqinc);