BLKTOAG
ji->active_ag = BLKTOAG(addressPXD(&ji->ixpxd), jfs_sb);
agno = BLKTOAG(start, JFS_SBI(ip->i_sb));
agno_end = BLKTOAG(end, JFS_SBI(ip->i_sb));
ag = BLKTOAG(daddr, sbi);
agno = BLKTOAG(JFS_IP(pip)->agstart, JFS_SBI(pip->i_sb));
agno = BLKTOAG(le64_to_cpu(iagp->agstart), JFS_SBI(imap->im_ipimap->i_sb));
agno = BLKTOAG(le64_to_cpu(iagp->agstart), sbi);
agno = BLKTOAG(agstart, JFS_SBI(ip->i_sb));
agno = BLKTOAG(JFS_IP(ip)->agstart, JFS_SBI(ip->i_sb));