linux-kernel - Re: [PATCH v2 0/1] finalize removing the page pool members in struct page

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Message-ID: <776b0429-d5ae-4b00-ba83-e25f6d877c0a@suse.cz>
Date: Wed, 17 Dec 2025 14:43:07 +0100
From: Vlastimil Babka <vbabka@...e.cz>
To: Byungchul Park <byungchul@...com>, linux-mm@...ck.org,
 akpm@...ux-foundation.org, netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel_team@...ynix.com,
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Subject: Re: [PATCH v2 0/1] finalize removing the page pool members in struct
 page

On 12/16/25 04:03, Byungchul Park wrote:
> Since this patch requires to use newly introduced APIs in net tree, I've
> been waiting for those to be ready in mm tree.  Now that mm tree has
> been rebased so as to include the APIs, this patch can be merged to mm
> tree.
> 
> This patch has been carried out in a separate thread so far for the
> reviews [1]:
> 
>  [1] https://lore.kernel.org/all/20251119012709.35895-1-byungchul@sk.com/
> ---
> Changes from v1:
> 	1. Drop the finalizing patch removing the pp fields of struct
> 	   page since I found that there is still code accessing a pp
> 	   field via struct page.  I will retry the finalizing patch
> 	   after resolving the issue.

Could we just make that necessary change of
drivers/net/ethernet/intel/ice/ice_ethtool.c part of this series and do it
all at once? We're changing both mm and net anyway.

Also which tree will carry the series? I assume net will want to, as the
changes are mostly there?

> ---
> Byungchul Park (1):
>   mm: introduce a new page type for page pool in page type
> 
>  .../net/ethernet/mellanox/mlx5/core/en/xdp.c  |  2 +-
>  include/linux/mm.h                            | 27 +++----------------
>  include/linux/page-flags.h                    |  6 +++++
>  include/net/netmem.h                          | 15 +++++++++--
>  mm/page_alloc.c                               | 11 +++++---
>  net/core/netmem_priv.h                        | 20 +++++---------
>  net/core/page_pool.c                          | 18 +++++++++++--
>  7 files changed, 53 insertions(+), 46 deletions(-)
> 
> 
> base-commit: d0a24447990a9d8212bfb3a692d59efa74ce9f86