Re: [PATCH 20/23] hugetlb/userfaultfd: Allow wr-protect none ptes

[Mike Kravetz]

On 3/22/21 5:50 PM, Peter Xu wrote:
> Teach hugetlbfs code to wr-protect none ptes just in case the page cache
> existed for that pte.  Meanwhile we also need to be able to recognize a uffd-wp
> marker pte and remove it for uffd_wp_resolve.
> 
> Since at it, introduce a variable "psize" to replace all references to the huge
> page size fetcher.

Introducing psize may have caused most changes. :)  I like it.

> 
> Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
> ---
>  mm/hugetlb.c | 29 +++++++++++++++++++++++++----
>  1 file changed, 25 insertions(+), 4 deletions(-)

Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
-- 
Mike Kravetz