Re: [PATCH v1 00/10] variable-order, large folios for anonymous memory

Yu Zhao
2023-06-29T00:28:15Z

On Wed, Jun 28, 2023 at 5:59 PM Yin Fengwei <fengwei.yin@intel.com> wrote:
>
> Hi Yu,
>
> On 6/29/23 02:22, Yu Zhao wrote:
> > And please make sure it's disabled by default, because we are still
> > missing many important functions, e.g., I don't think we can mlock()
> > when large() && !pmd_mappable(), see mlock_pte_range() and
> > mlock_vma_folio(). We can fix it along with many things later, but we
> > need to present a plan and a schedule now. Otherwise, there would be
> > pushback if we try to land the series without supporting mlock().
> >
> > Do you or Fengwei plan to take on it? (I personally don't.) If not,
> Do you mean the mlock() with large folio? Yes. I can work on it. Thanks.

Great. Thanks!

Other places that have the similar problem but are probably easier to
fix than the mlock() case:
* madvise_cold_or_pageout_pte_range()
* shrink_folio_list()