ufs_add16
ufs_add16(old_cg_blks(fs, cgp, cylno, needswap)[old_cbtorpos(fs, bno)], -1,
ufs_add16(old_cg_blks(fs, cgp, i, needswap)[old_cbtorpos(fs, cgbno)], 1,
ufs_add16(old_cg_blks(fs, cgp, i, needswap)[old_cbtorpos(fs,
ufs_add16(old_cg_blks(fs, cgp, cylno,
ufs_add16(old_cg_blks(fs, cgp, i,
ufs_add16(old_cg_blks(fs, cgp, i,