Re: [patch 2] Xen core patch : arch_free_page return value

[Keir Fraser]

> "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx> wrote:
> >
> > We forwarded the patches around
> >  so many different people for comment before sending them to lkml that
> >  somewhere along the line something bad happned.
> 
> Just send 'em to linux-kernel first-up and cc everyone else.  That way you
> avoid duplication of effort and everyone is on the same page.
> 
> I'm still struggling to understand the rationale behind the mem.c change
> btw.  io_remap_page_range() _is_ remap_page_range() (or, now,
> remap_pfn_range()) on x86.  So whatever the patch is supposed to be doing,
> it's a no-op.

We need to sync up to the current BK tree and see what needs to be
done. If remap_pfn_range() is arch-dep and only used in contexts where
you want to remap real physical address ranges (not "kernel physical"
address ranges) then we can reimplement remap_pfn_range() and remove
that CONFIG_XEN part of mem.c.

 -- Keir
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