EFS_DINODES_PER_BB
*bboff = firstcg + ((ino / (cgisize * EFS_DINODES_PER_BB)) * cgfsize) +
((ino % (cgisize * EFS_DINODES_PER_BB)) / EFS_DINODES_PER_BB);
*index = ino & (EFS_DINODES_PER_BB - 1);
EFS_DINODES_PER_BB;