netdev - Re: [PATCH net-next v9 04/20] net: page_pool: create hooks for custom page providers

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Message-ID: <72b271d4-c2c0-4d54-81a0-13d0c5640e50@gmail.com>
Date: Thu, 2 Jan 2025 15:54:32 +0000
From: Pavel Begunkov <asml.silence@...il.com>
To: David Wei <dw@...idwei.uk>, io-uring@...r.kernel.org,
 netdev@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jesper Dangaard Brouer
 <hawk@...nel.org>, David Ahern <dsahern@...nel.org>,
 Mina Almasry <almasrymina@...gle.com>,
 Stanislav Fomichev <stfomichev@...il.com>, Joe Damato <jdamato@...tly.com>,
 Pedro Tammela <pctammela@...atatu.com>
Subject: Re: [PATCH net-next v9 04/20] net: page_pool: create hooks for custom
 page providers

On 12/18/24 00:37, David Wei wrote:
> From: Jakub Kicinski <kuba@...nel.org>
> 
> The page providers which try to reuse the same pages will
> need to hold onto the ref, even if page gets released from
> the pool - as in releasing the page from the pp just transfers
> the "ownership" reference from pp to the provider, and provider
> will wait for other references to be gone before feeding this
> page back into the pool.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

My apologies, seems it lost a note that it's a derivative patch
with changes not explicitly confirmed by the author.

> Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
> Signed-off-by: David Wei <dw@...idwei.uk>

-- 
Pavel Begunkov