netdev - Re: [RFC v4 16/18] netmem: introduce a netmem API, virt_to_head

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Message-ID: <5838de86-7469-479c-a9eb-973dca75e557@gmail.com>
Date: Thu, 5 Jun 2025 11:45:55 +0100
From: Pavel Begunkov <asml.silence@...il.com>
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, hawk@...nel.org,
 akpm@...ux-foundation.org, davem@...emloft.net, john.fastabend@...il.com,
 andrew+netdev@...n.ch, 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
Subject: Re: [RFC v4 16/18] netmem: introduce a netmem API,
 virt_to_head_netmem()

On 6/4/25 03:52, Byungchul Park wrote:
> To eliminate the use of struct page in page pool, the page pool code
> should use netmem descriptor and APIs instead.
> 
> As part of the work, introduce a netmem API to convert a virtual address
> to a head netmem allowing the code to use it rather than the existing
> API, virt_to_head_page() for struct page.

Reviewed-by: Pavel Begunkov <asml.silence@...il.com>

-- 
Pavel Begunkov