taglinefilesource code
overhead720fs/ext2/super.cunsigned long overhead;
overhead725fs/ext2/super.coverhead = 0;
overhead735fs/ext2/super.coverhead = sb->u.ext2_sb.s_es->s_first_data_block +
overhead741fs/ext2/super.ctmp.f_blocks = sb->u.ext2_sb.s_es->s_blocks_count - overhead;