Re: [PATCH v2 01/34] mm: Add PAGE_TYPE_OP folio functions

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On Thu, May 25, 2023 at 10:00:23AM -0700, Vishal Moola wrote:
> On Thu, May 25, 2023 at 1:56 AM Mike Rapoport <rppt@xxxxxxxxxx> wrote:
> >
> > Hi,
> >
> > On Mon, May 01, 2023 at 12:27:56PM -0700, Vishal Moola (Oracle) wrote:
> > > No folio equivalents for page type operations have been defined, so
> > > define them for later folio conversions.
> >
> > Can you please elaborate why would we need folios for page table descriptors?
> 
> Thanks for the review!
> 
> These macros are for callers that care about the page type, i.e. Table and
> Buddy. Aside from accounting for those cases, the page tables don't use folios.
> These are more for the cleanliness of those callers.

But why using folio APIs for PageType will be cleaner than using page APIs?
Do you have an example?

-- 
Sincerely yours,
Mike.




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