Re: [PATCH 0/4] vfio/type1: optimize vfio_pin_pages_remote() and vfio_unpin_pages_remote() for large folio

From: lizhe . 67
Date: Thu Jul 03 2025 - 07:37:38 EST


On Thu, 3 Jul 2025 08:12:16 -0300, jgg@xxxxxxxx wrote:

> On Thu, Jul 03, 2025 at 01:06:26PM +0200, David Hildenbrand wrote:
> > > +{
> > > + struct page *first_page = pages[0];
> > > + unsigned long i;
> > > +
> > > + for (i = 1; i < size; i++)
> > > + if (pages[i] != nth_page(first_page, i))
> > > + break;
> > > + return i;
> > > +}
> >
> > LGTM.
> >
> > I wonder if we can find a better function name, especially when moving this
> > to some header where it can be reused.
>
> It should be a common function:
>
> unsigned long num_pages_contiguous(struct page *list, size_t nelms);

I fully agree with you.

Thanks,
Zhe