From: Pavel Begunkov <asml.silence@gmail•com>
To: Byungchul Park <byungchul@sk•com>,
linux-mm@kvack•org, netdev@vger•kernel.org
Cc: linux-kernel@vger•kernel.org, kernel_team@skhynix•com,
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leon@kernel•org, tariqt@nvidia•com, mbloch@nvidia•com,
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akpm@linux-foundation•org, david@redhat•com,
lorenzo.stoakes@oracle•com, Liam.Howlett@oracle•com,
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sfr@canb•auug.org.au, dw@davidwei•uk, ap420073@gmail•com,
dtatulea@nvidia•com
Subject: Re: [RFC mm v5 2/2] mm: introduce a new page type for page pool in page type
Date: Thu, 6 Nov 2025 11:08:35 +0000 [thread overview]
Message-ID: <4ab9d277-97ef-414d-bb5d-910fd8964c2b@gmail.com> (raw)
In-Reply-To: <20251103075108.26437-3-byungchul@sk.com>
On 11/3/25 07:51, Byungchul Park wrote:
> Currently, the condition 'page->pp_magic == PP_SIGNATURE' is used to
> determine if a page belongs to a page pool. However, with the planned
> removal of ->pp_magic, we should instead leverage the page_type in
> struct page, such as PGTY_netpp, for this purpose.
>
> Introduce and use the page type APIs e.g. PageNetpp(), __SetPageNetpp(),
> and __ClearPageNetpp() instead, and remove the existing APIs accessing
> ->pp_magic e.g. page_pool_page_is_pp(), netmem_or_pp_magic(), and
> netmem_clear_pp_magic().
>
> This work was inspired by the following link:
>
> [1] https://lore.kernel.org/all/582f41c0-2742-4400-9c81-0d46bf4e8314@gmail.com/
>
> While at it, move the sanity check for page pool to on free.
Looks good to me
Reviewed-by: Pavel Begunkov <asml.silence@gmail•com>
--
Pavel Begunkov
prev parent reply other threads:[~2025-11-06 11:08 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-03 7:51 [RFC mm v5 0/2] mm, page_pool: introduce a new page type for page pool in page type Byungchul Park
2025-11-03 7:51 ` [RFC mm v5 1/2] page_pool: check nmdesc->pp to see its usage as page pool for net_iov not page-backed Byungchul Park
2025-11-03 12:24 ` Toke Høiland-Jørgensen
2025-11-06 11:07 ` Pavel Begunkov
2025-11-07 1:33 ` Jakub Kicinski
2025-11-07 1:59 ` Byungchul Park
2025-11-07 2:08 ` Jakub Kicinski
2025-11-07 4:47 ` Byungchul Park
2025-11-08 1:41 ` Jakub Kicinski
2025-11-08 2:24 ` Byungchul Park
2025-11-08 2:29 ` Byungchul Park
2025-11-08 2:37 ` Jakub Kicinski
2025-11-10 1:09 ` Byungchul Park
2025-11-11 1:40 ` Byungchul Park
2025-11-11 1:56 ` Jakub Kicinski
2025-11-11 2:17 ` Byungchul Park
2025-11-11 2:45 ` Byungchul Park
2025-11-11 12:36 ` Toke Høiland-Jørgensen
2025-11-12 7:41 ` Byungchul Park
2025-11-15 1:23 ` Jakub Kicinski
2025-11-17 4:25 ` Byungchul Park
2025-11-03 7:51 ` [RFC mm v5 2/2] mm: introduce a new page type for page pool in page type Byungchul Park
2025-11-03 12:26 ` Toke Høiland-Jørgensen
2025-11-03 12:39 ` Byungchul Park
2025-11-03 14:50 ` Toke Høiland-Jørgensen
2025-11-06 11:08 ` Pavel Begunkov [this message]
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