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

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Message-ID: <757b3268-43ab-41bf-88fa-4730089721f3@gmail.com>
Date: Sun, 10 Aug 2025 21:21:45 +0100
From: Pavel Begunkov <asml.silence@...il.com>
To: Byungchul Park <byungchul@...com>, linux-mm@...ck.org,
 netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel_team@...ynix.com,
 harry.yoo@...cle.com, ast@...nel.org, daniel@...earbox.net,
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Subject: Re: [PATCH linux-next v3] mm, page_pool: introduce a new page type
 for page pool in page type

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@...hat.com>.
> 
> ---8<---
>  From 88bcb9907a0cef65a9c0adf35e144f9eb67e0542 Mon Sep 17 00:00:00 2001
> From: Byungchul Park <byungchul@...com>
> 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.

-- 
Pavel Begunkov