netdev - Re: [PATCH net-next v8 0/5] Split netmem from struct page

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Message-ID: <27363482-efa5-49bf-94e4-6d93a662ecaa@kernel.org>
Date: Thu, 3 Jul 2025 15:29:19 +0200
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: Byungchul Park <byungchul@...com>, willy@...radead.org,
 netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 kernel_team@...ynix.com, kuba@...nel.org, almasrymina@...gle.com,
 ilias.apalodimas@...aro.org, harry.yoo@...cle.com,
 akpm@...ux-foundation.org, davem@...emloft.net, john.fastabend@...il.com,
 andrew+netdev@...n.ch, asml.silence@...il.com, toke@...hat.com,
 tariqt@...dia.com, edumazet@...gle.com, pabeni@...hat.com,
 saeedm@...dia.com, leon@...nel.org, ast@...nel.org, daniel@...earbox.net,
 david@...hat.com, lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com,
 vbabka@...e.cz, rppt@...nel.org, surenb@...gle.com, mhocko@...e.com,
 horms@...nel.org, linux-rdma@...r.kernel.org, bpf@...r.kernel.org,
 vishal.moola@...il.com, hannes@...xchg.org, ziy@...dia.com,
 jackmanb@...gle.com
Subject: Re: [PATCH net-next v8 0/5] Split netmem from struct page


On 02/07/2025 07.32, Byungchul Park wrote:
> Hi all,
> 
> In this version, I'm posting non-controversial patches first since there
> are pending works that should be based on this series so that those can
> be started shortly.  I will post the rest later.
> 
> The MM subsystem is trying to reduce struct page to a single pointer.
> The first step towards that is splitting struct page by its individual
> users, as has already been done with folio and slab.  This patchset does
> that for netmem which is used for page pools.
> 
[...]
> 
> Byungchul Park (5):
>    page_pool: rename page_pool_return_page() to page_pool_return_netmem()
>    page_pool: rename __page_pool_release_page_dma() to
>      __page_pool_release_netmem_dma()
>    page_pool: rename __page_pool_alloc_pages_slow() to
>      __page_pool_alloc_netmems_slow()
>    netmem: use _Generic to cover const casting for page_to_netmem()
>    page_pool: make page_pool_get_dma_addr() just wrap
>      page_pool_get_dma_addr_netmem()
> 
>   include/net/netmem.h            |  7 +++----
>   include/net/page_pool/helpers.h |  7 +------
>   net/core/page_pool.c            | 36 ++++++++++++++++-----------------
>   3 files changed, 22 insertions(+), 28 deletions(-)

Acked-by: Jesper Dangaard Brouer <hawk@...nel.org>