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: <CAAVpQUAi3wDmL2e+U-3Uo3hqdHEXPid3DpU2baC-wgLFcAi7XQ@mail.gmail.com>
Date: Sat, 27 Sep 2025 13:31:06 -0700
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: xuanqiang.luo@...ux.dev
Cc: edumazet@...gle.com, "Paul E. McKenney" <paulmck@...nel.org>, 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()

On Fri, Sep 26, 2025 at 12:41 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>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...gle.com>

Thanks!