[EMAIL PROTECTED] wrote on Mon, 23 Jun 2008 09:35 +0300:
> Looking at the implementation of kmap_atomic() quoted bellow:
[..]
> static inline void *kmap_atomic(struct page *page, enum km_type idx)
> {
> pagefault_disable();
> return page_address(page);
> }
>
> I can't see page_address doing anything actively to map the page. It
> just searches for the page and returns it's mapping. But I'm probably
> missing something.
You're looking at the no-highmem version. Check the one in
arch/x86/mm/highmem_32.c for a more interesting example.
-- Pete
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