AFFS_LC_SIZE
lc_max = AFFS_LC_SIZE << AFFS_I(inode)->i_lc_shift;
tmp = (AFFS_I(inode)->i_extcnt / AFFS_LC_SIZE) >> lc_shift;
for (i = 1, j = off; j < AFFS_LC_SIZE; i++, j += off)
for (; i < AFFS_LC_SIZE; i++)