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Date: Wed, 18 Mar 2026 11:57:36 +0100
From: Frederic Weisbecker <frederic@kernel.org>
To: Joel Fernandes <joelagnelf@nvidia.com>
Cc: linux-kernel@vger.kernel.org, "Paul E. McKenney" <paulmck@kernel.org>,
	Neeraj Upadhyay <neeraj.upadhyay@kernel.org>,
	Josh Triplett <josh@joshtriplett.org>,
	Boqun Feng <boqun@kernel.org>, Uladzislau Rezki <urezki@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Lai Jiangshan <jiangshanlai@gmail.com>,
	Zqiang <qiang.zhang@linux.dev>, rcu@vger.kernel.org
Subject: Re: [PATCH -next v1 13/16] rcu-tasks: Remove unnecessary
 smp_store_release() in cblist_init_generic()
Message-ID: <abqFIAKnfuvZLoZW@localhost.localdomain>
References: <20260317212217.1527644-1-joelagnelf@nvidia.com>
 <20260317212217.1527644-14-joelagnelf@nvidia.com>
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In-Reply-To: <20260317212217.1527644-14-joelagnelf@nvidia.com>

Le Tue, Mar 17, 2026 at 05:22:14PM -0400, Joel Fernandes a écrit :
> From: Zqiang <qiang.zhang@linux.dev>
> 
> The cblist_init_generic() is executed during the CPU early boot
> phase due to commit:30ef09635b9e ("rcu-tasks: Initialize callback
> lists at rcu_init() time"), at this time, only one boot CPU is
> online and the irq is disabled. this commit therefore use routine
> assignment replace of smp_store_release() and WRITE_ONCE() in the
> cblist_init_generic().
> 
> Signed-off-by: Zqiang <qiang.zhang@linux.dev>
> Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
> Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>

Reviewed-by: Frederic Weisbecker <frederic@kernel.org>

-- 
Frederic Weisbecker
SUSE Labs