Clarifying memory management with page folios

Names need to be long enough to distinguish the thing named from other things it might otherwise have been and (if you exercise any foresight) also things it will not be.

How long that name needs to be depends on the scope of the names.

In C, lacking any mechanism for namespacing, a practical name *often* must be unpleasantly long. That is a fault of the language, not (usually) of the person choosing the name; although some people confuse names with specifications, and so invent stupidly long names.

"Compound_page" is not, in any universe, stupidly long for a C struct tag.