From: Jakub Kicinski <kuba@kernel.org>
To: Byungchul Park <byungchul@sk.com>
Cc: linux-mm@kvack.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel_team@skhynix.com,
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linux-rdma@vger.kernel.org, sfr@canb.auug.org.au, dw@davidwei.uk,
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Subject: Re: [RFC mm v5 1/2] page_pool: check nmdesc->pp to see its usage as page pool for net_iov not page-backed
Date: Thu, 6 Nov 2025 17:33:20 -0800 [thread overview]
Message-ID: <20251106173320.2f8e683a@kernel.org> (raw)
In-Reply-To: <20251103075108.26437-2-byungchul@sk.com>
On Mon, 3 Nov 2025 16:51:07 +0900 Byungchul Park wrote:
> However, for net_iov not
> page-backed, the identification cannot be based on the page_type.
> Instead, nmdesc->pp can be used to see if it belongs to a page pool, by
> making sure nmdesc->pp is NULL otherwise.
Please explain why. Isn't the type just a value in a field?
Which net_iov could also set accordingly.. ?
next prev parent reply other threads:[~2025-11-07 1:33 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 [this message]
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
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