On Sun, 2010-02-07 at 16:42 -0500, Ian Campbell wrote:
> On Sun, 2010-02-07 at 19:35 +0000, Pasi Kärkkäinen wrote:
> > On Wed, Jan 27, 2010 at 05:26:13PM +0000, Ian Campbell wrote:
> > > diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
> > > index 65215ab..49f8e83 100644
> > > --- a/arch/x86/mm/pgtable.c
> > > +++ b/arch/x86/mm/pgtable.c
> > > @@ -28,7 +28,10 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned
> > > long address)
> > > struct page *pte;
> > >
> > > #ifdef CONFIG_HIGHPTE
> > > - pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0);
> > > + if (is_xen_domain())
> > > + pte = alloc_pages(PGALLOC_GFP, 0);
> > > + else
> > > + pte = alloc_pages(PGALLOC_GFP | __GFP_HIGHMEM, 0);
> > > #else
> > > pte = alloc_pages(PGALLOC_GFP, 0);
> > > #endif
> > >
> >
> > I just tried this patch, but it fails to compile:
> >
> > arch/x86/mm/pgtable.c: In function 'pte_alloc_one':
> > arch/x86/mm/pgtable.c:19: error: implicit declaration of function
> > 'is_xen_domain'
> > make[2]: *** [arch/x86/mm/pgtable.o] Error 1
> > make[1]: *** [arch/x86/mm] Error 2
> > make: *** [arch/x86] Error 2
> >
> > I tried grepping around for that function but didn't find it from any
> > header..
>
> IIRC on some kernels it was called just xen_domain(), I'm not sure but I
> think my patch was against plain 2.6.32. I think the function (whatever
> it is called) also moved around in the headers recently.
is_running_on_xen()
Daniel
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