netdev - Re: [PATCH net-next v7 1/3] rculist: Add hlist_nulls_replace_rcu() and hlist_nulls_replace_init

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Message-ID: <d11a4e1c-b44c-4076-8de8-326183ebc3d1@linux.dev>
Date: Wed, 1 Oct 2025 23:03:39 +0800
From: luoxuanqiang <xuanqiang.luo@...ux.dev>
To: Paolo Abeni <pabeni@...hat.com>, edumazet@...gle.com, kuniyu@...gle.com,
 "Paul E. McKenney" <paulmck@...nel.org>
Cc: kerneljasonxing@...il.com, davem@...emloft.net, kuba@...nel.org,
 netdev@...r.kernel.org, Xuanqiang Luo <luoxuanqiang@...inos.cn>,
 Frederic Weisbecker <frederic@...nel.org>,
 Neeraj Upadhyay <neeraj.upadhyay@...nel.org>
Subject: Re: [PATCH net-next v7 1/3] rculist: Add hlist_nulls_replace_rcu()
 and hlist_nulls_replace_init_rcu()

在 2025/9/30 17:16, Paolo Abeni 写道:
> On 9/26/25 9:40 AM, xuanqiang.luo@...ux.dev wrote:
>> From: Xuanqiang Luo <luoxuanqiang@...inos.cn>
>>
>> Add two functions to atomically replace RCU-protected hlist_nulls entries.
>>
>> Keep using WRITE_ONCE() to assign values to ->next and ->pprev, as
>> mentioned in the patch below:
>> commit efd04f8a8b45 ("rcu: Use WRITE_ONCE() for assignments to ->next for
>> rculist_nulls")
>> commit 860c8802ace1 ("rcu: Use WRITE_ONCE() for assignments to ->pprev for
>> hlist_nulls")
>>
>> Signed-off-by: Xuanqiang Luo <luoxuanqiang@...inos.cn>
> This deserves explicit ack from RCU maintainers.
>
> Since we are finalizing the net-next PR, I suggest to defer this series
> to the next cycle, to avoid rushing such request.
>
> Thanks,
>
> Paolo
>
No problem. Thanks for noticing this series of patches!

I'll resend them in the next cycle if they get forgotten.

Thanks!
Xuanqiang