Re: [PATCH v4 1/2] mm/uffd: UFFD_FEATURE_WP_UNPOPULATED

[Peter Xu]

 On Thu, Mar 09, 2023 at 05:37:10PM -0500, Peter Xu wrote:
> This is a new feature that controls how uffd-wp handles none ptes.  When
> it's set, the kernel will handle anonymous memory the same way as file
> memory, by allowing the user to wr-protect unpopulated ptes.

[...]

Hi, Andrew,

Could you add a fixup to this patch as attached?  It contains two comment
changes suggested by David, and also a oneliner fix to khugepaged (to bail
out anon thp collapsing when seeing pte markers).  The latter one was
something I spot only later on.

Thanks,

-- 
Peter Xu