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From: Shakeel Butt <shakeelb@google.com>
Date: Tue, 19 Dec 2023 09:27:27 -0800
Message-ID: <CALvZod6oCPk1tJLyffGJ1acJvo7wG72ymm8AePnGi=T=h4sehw@mail.gmail.com>
Subject: Re: [RFC PATCH net-next v1 2/4] net: introduce abstraction for
 network memory
To: Mina Almasry <almasrymina@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>, David Ahern <dsahern@kernel.org>, linux-kernel@vger.kernel.org, 
	netdev@vger.kernel.org, bpf@vger.kernel.org, 
	Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, 
	Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org, 
	"H. Peter Anvin" <hpa@zytor.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, 
	"Rafael J. Wysocki" <rafael@kernel.org>, Sumit Semwal <sumit.semwal@linaro.org>, 
	=?UTF-8?Q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>, 
	Michael Chan <michael.chan@broadcom.com>, "David S. Miller" <davem@davemloft.net>, 
	Eric Dumazet <edumazet@google.com>, Paolo Abeni <pabeni@redhat.com>, 
	Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann <daniel@iogearbox.net>, 
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	Saeed Mahameed <saeedm@nvidia.com>, Leon Romanovsky <leon@kernel.org>, 
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	"K. Y. Srinivasan" <kys@microsoft.com>, Haiyang Zhang <haiyangz@microsoft.com>, Wei Liu <wei.liu@kernel.org>, 
	Dexuan Cui <decui@microsoft.com>, Jassi Brar <jaswinder.singh@linaro.org>, 
	Ilias Apalodimas <ilias.apalodimas@linaro.org>, 
	Alexandre Torgue <alexandre.torgue@foss.st.com>, Jose Abreu <joabreu@synopsys.com>, 
	Maxime Coquelin <mcoquelin.stm32@gmail.com>, Siddharth Vadapalli <s-vadapalli@ti.com>, 
	Ravi Gunasekaran <r-gunasekaran@ti.com>, Roger Quadros <rogerq@kernel.org>, 
	Jiawen Wu <jiawenwu@trustnetic.com>, Mengyuan Lou <mengyuanlou@net-swift.com>, 
	Ronak Doshi <doshir@vmware.com>, VMware PV-Drivers Reviewers <pv-drivers@vmware.com>, 
	Ryder Lee <ryder.lee@mediatek.com>, Shayne Chen <shayne.chen@mediatek.com>, 
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	Stefano Stabellini <sstabellini@kernel.org>, 
	Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>, Andrii Nakryiko <andrii@kernel.org>, 
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	=?UTF-8?B?TWlja2HDq2wgU2FsYcO8bg==?= <mic@digikod.net>, 
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	Bill Wendling <morbo@google.com>, Justin Stitt <justinstitt@google.com>, 
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On Mon, Dec 18, 2023 at 2:39=E2=80=AFPM Mina Almasry <almasrymina@google.co=
m> wrote:
>
[...]
> >
> > You didn't address my feedback :|
> >
> > struct netmem which contains struct page by value is almost as bad
> > as passing around pretend struct page pointers.
>
> Sorry about that. I misread your original request as 'here is
> something else you can do if you want', not something that you feel is
> critical. Honestly I missed the subtlety and the approaches seemed
> roughly equivalent to me. I will respin after the 24hr cooldown.
>

Jakub's suggestion aligns more with the encoded_page approach as well,
so let's proceed with that. Waiting for your respin.