[Xen-devel] Re: [Linux PATCH] Mark hugepages to the hypervisor to speed up mapping (with signoff this time)

[Dave McCracken <dcm@xxxxxxxx>]

On Wednesday, June 09, 2010, Jeremy Fitzhardinge wrote:
> > +             return 1;
> > +     }
> > +     for (i = 0, m = mfn; i < HPAGE_SIZE/PAGE_SIZE; i++, pfn++, m++) {
> > +             if (pfn_to_mfn(pfn) != m) {
> > +                     printk("Guest pages are not properly aligned to use
> > hugepages\n");
> >
> >   
> 
> Isn't this a superset of the previous test?

The code is doublechecking to make sure this hugepage is actually contiguous 
at the machine level.

Dave McCracken
Oracle Corp.

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