Re: [PATCH linux-next v3] mm, page_pool: introduce a new page type for page pool in page type

[Pavel Begunkov]

On 8/13/25 15:52, Jakub Kicinski wrote:
> On Wed, 13 Aug 2025 12:18:56 +0100 Pavel Begunkov wrote:
> > It should go to net, there will be enough of conflicts otherwise.
> > mm maintainers, do you like it as a shared branch or can it just
> > go through the net tree?
>
> Looks like this is 100% in mm, and the work is not urgent at all.

There is a slight dependency in rc1, but we should be able to
massage it to be mm only.

> So I'm happy for Andrew to take this, and dependent patches (if any)
> can come in the next cycle.

Yeah, good option. It'd be a good idea to cut the diff down to
avoid removing the relevant mm page state checks until the next
cycle.
 >> @@ -1379,9 +1376,11 @@ __always_inline bool free_pages_prepare(struct page *page,
> >    		mod_mthp_stat(order, MTHP_STAT_NR_ANON, -1);
> >    		folio->mapping = NULL;
> >    	}
> > -	if (unlikely(page_has_type(page)))
> > +	if (unlikely(page_has_type(page))) {
> > +		WARN_ON_ONCE(PageNet_pp(page));
>
> I guess my ask to add a comment here got ignored?

It's an old patch attached as a point of reference. Any actual submission
surely will need to follow up on the reviews.

--
Pavel Begunkov