netdev - Re: [PATCH net-next 05/15] net: page

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Message-ID: <cb0d160b-42bf-40c9-ac36-246010d04975@kernel.org>
Date: Tue, 24 Oct 2023 11:31:46 -0600
From: David Ahern <dsahern@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>, davem@...emloft.net
Cc: netdev@...r.kernel.org, edumazet@...gle.com, pabeni@...hat.com,
 almasrymina@...gle.com, hawk@...nel.org, ilias.apalodimas@...aro.org
Subject: Re: [PATCH net-next 05/15] net: page_pool: record pools per netdev

On 10/24/23 10:02 AM, Jakub Kicinski wrote:
> Link the page pools with netdevs. This needs to be netns compatible
> so we have two options. Either we record the pools per netns and
> have to worry about moving them as the netdev gets moved.
> Or we record them directly on the netdev so they move with the netdev
> without any extra work.
> 
> Implement the latter option. Since pools may outlast netdev we need
> a place to store orphans. In time honored tradition use loopback
> for this purpose.
> 

blackhole_netdev might be a better choice than loopback