On Sun, 19 Jan 2020 10:55:44 +0000, Anupam Kapoor said:

> but if _all_ that is required is randomly unmapping some marked
> application pages, _that_ can be naively 'done' by the application
> itself :)

Note that in this case, "naively" includes "not remembering to consider
that the page being unmapped may have contained data we'd rather
have kept by flushing the page to disk" :)