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([2601:188:c102:b180:1f8b:71d0:77b1:1f6e]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8c711d3ea25sm237092385a.36.2026.01.28.10.08.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Jan 2026 10:09:00 -0800 (PST) From: Waiman Long X-Google-Original-From: Waiman Long Message-ID: <494c63e6-4887-4bee-989d-8a9efda7f2c7@redhat.com> Date: Wed, 28 Jan 2026 13:08:58 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH/for-next 1/2] cgroup/cpuset: Defer housekeeping_update() call from CPU hotplug to task_work To: Tejun Heo Cc: Chen Ridong , Johannes Weiner , =?UTF-8?Q?Michal_Koutn=C3=BD?= , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Anna-Maria Behnsen , Frederic Weisbecker , Thomas Gleixner , Shuah Khan , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org References: <20260128044251.1229702-1-longman@redhat.com> <20260128044251.1229702-2-longman@redhat.com> Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/28/26 12:44 PM, Tejun Heo wrote: > 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. > Sorry about that, will fix it. That change was removed in the 2nd patch. That is why the series still worked as expected. Thanks, Longman