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Date: Wed, 28 Jan 2026 07:44:49 -1000
From: Tejun Heo <tj@kernel.org>
To: Waiman Long <longman@redhat.com>
Cc: Chen Ridong <chenridong@huaweicloud.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Michal =?iso-8859-1?Q?Koutn=FD?= <mkoutny@suse.com>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
	Anna-Maria Behnsen <anna-maria@linutronix.de>,
	Frederic Weisbecker <frederic@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>, Shuah Khan <shuah@kernel.org>,
	cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: Re: [PATCH/for-next 1/2] cgroup/cpuset: Defer housekeeping_update()
 call from CPU hotplug to task_work
Message-ID: <aXpLEcOFhuGYGPY-@slm.duckdns.org>
References: <20260128044251.1229702-1-longman@redhat.com>
 <20260128044251.1229702-2-longman@redhat.com>
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In-Reply-To: <20260128044251.1229702-2-longman@redhat.com>

On Tue, Jan 27, 2026 at 11:42:50PM -0500, Waiman Long wrote:
> +static void isolation_task_work_fn(struct callback_head *cb)
> +{
> +	cpuset_full_lock();
> +	__update_isolation_cpumasks(true);
> +	cpuset_full_lock();
                    ^
                    unlock?

Thanks.

-- 
tejun