On Thu, Dec 08, 2022 at 05:44:35PM +0100, David Hildenbrand wrote:
> I'll wait for some more (+retest) before I resend tomorrow.
One more thing just to double check:
It's 6a56ccbcf6c6 ("mm/autonuma: use can_change_(pte|pmd)_writable() to
replace savedwrite", 2022-11-30) that just started to break uffd-wp on
numa, am I right?
With the old code, pte_modify() will persist uffd-wp bit, afaict, and we
used to do savedwrite for numa hints. That all look correct to me until
the savedwrite removal patchset with/without vm_page_prot changes.
If that's the case, we'd better also mention that in the commit message and
has another Fixes: for that one to be clear.
--
Peter Xu
