On Fri, 2005-09-02 at 15:13 -0700, Andrew Morton wrote:
> Dave Hansen <[email protected]> wrote:
> >
> > + for (i = 0; i < PAGES_PER_SECTION; i++) {
> > + if (PageReserved(first_page+i))
> > + continue;
>
> How intimate do these patches get with PageReserved()? Bear in mind that
> we're slowly working toward making PageReserved go away.
It's basically the same way that the init code uses it. When
initialized, a struct page has it set. In theory, an architecture could
decide to keep the bit set when it is doing online_pages(). However, I
don't think any do that today. Nobody would really notice if we killed
that. That check could probably instead be something like
page_is_ram().
-- Dave
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