Messages in this thread |  | | | Date | Fri, 15 Feb 2008 08:30:26 +0100 | | From | Ingo Molnar <> | | Subject | Re: [PATCH] Fix left over EFI cache mapping problems | |
* Linus Torvalds <torvalds@linux-foundation.org> wrote:
> So *if* we care (I doubt we do, since EFI_PAGE_SHIFT at least right
> now matches PAGE_SHIFT on x86), you'd probably want to do something
> like> > static inline unsigned long efi_pages_to_native_pages(unsigned long efi_pages)
> {
> #if EFI_PAGE_SHIFT > PAGE_SHIFT
> return efi_pages << (EFI_PAGE_SHIFT - PAGE_SHIFT);
> #else
> return efi_pages >> (PAGE_SHIFT - EFI_PAGE_SHIFT);
> #endif
> }
yeah, this is even cleaner - i guess EFI_PAGE_SHIFT will be around in
the future too because it's also used on ia64.
Ingo
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