[PATCH v5 3/9] mm/mremap: Use pmd/pud_poplulate to update page table entries

[Peter Xu]

On Thu, May 20, 2021 at 01:56:54PM +0530, Aneesh Kumar K.V wrote:
> > This seems to work at least for my userfaultfd test on shmem, however I don't
> > fully understand the commit message [1] on: How do we guarantee we're not
> > moving a thp pte?
> > 
> 
> move_page_tables() checks for pmd_trans_huge() and ends up calling
> move_huge_pmd if it is a THP entry.

Sorry to be unclear: what if a huge pud thp?

-- 
Peter Xu