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

From: Byungchul Park
Date: Sun Aug 10 2025 - 21:09:51 EST


On Sun, Aug 10, 2025 at 09:21:45PM +0100, Pavel Begunkov wrote:
> On 7/29/25 12:02, Byungchul Park wrote:
> > Changes from v2:
> > 1. Rebase on linux-next as of Jul 29.
> > 2. Skip 'niov->pp = NULL' when it's allocated using __GFP_ZERO.
> > 3. Change trivial coding style. (feedbacked by Mina)
> > 4. Add Co-developed-by, Acked-by, and Reviewed-by properly.
> > Thanks to all.
> >
> > Changes from v1:
> > 1. Rebase on linux-next.
> > 2. Initialize net_iov->pp = NULL when allocating net_iov in
> > net_devmem_bind_dmabuf() and io_zcrx_create_area().
> > 3. Use ->pp for net_iov to identify if it's pp rather than
> > always consider net_iov as pp.
> > 4. Add Suggested-by: David Hildenbrand <david@xxxxxxxxxx>.
> >
> > ---8<---
> > From 88bcb9907a0cef65a9c0adf35e144f9eb67e0542 Mon Sep 17 00:00:00 2001
> > From: Byungchul Park <byungchul@xxxxxx>
> > Date: Tue, 29 Jul 2025 19:49:44 +0900
> > Subject: [PATCH linux-next v3] mm, page_pool: introduce a new page type for page pool in page type
>
> That will conflict with "netmem: replace __netmem_clear_lsb() with
> netmem_to_nmdesc()", it'll need some coordination.

Indeed. It'd better work on top of "netmem: replace __netmem_clear_lsb()
with netmem_to_nmdesc()" then. You said you are going to take the patch.
Please lemme know the progress so that I can track and re-work on this.

Byungchul

> --
> Pavel Begunkov
>