Re: [PATCH v1 00/15] mm: COW fixes part 2: reliable GUP pins of anonymous pages

[Linus Torvalds]

On Tue, Mar 8, 2022 at 6:14 AM David Hildenbrand <david@xxxxxxxxxx> wrote:
>
> This series fixes memory corruptions when a GUP pin (FOLL_PIN) was taken
> on an anonymous page and COW logic fails to detect exclusivity of the page
> to then replacing the anonymous page by a copy in the page table [...]

>From a cursory scan of the patches, this looks sane.

I'm not sure what the next step should be, but I really would like the
people who do a lot of pinning stuff to give it a good shake-down.
Including both looking at the patches, but very much actually running
it on whatever test-cases etc you people have.

Please?

                 Linus