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McKenney" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Tejun Heo , Andrew Morton , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Anna-Maria Behnsen , Ingo Molnar , Shuah Khan , linux-kernel@vger.kernel.org, rcu@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH 08/15] workqueue: Support dynamic housekeeping mask updates Message-ID: References: <20260325-dhei-v12-final-v1-0-919cca23cadf@gmail.com> <20260325-dhei-v12-final-v1-8-919cca23cadf@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260325-dhei-v12-final-v1-8-919cca23cadf@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 799D92000B X-Stat-Signature: 5ye3683kz4dno49urb6puohzdbtctnjy X-HE-Tag: 1774949974-746521 X-HE-Meta: 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Le Wed, Mar 25, 2026 at 05:09:39PM +0800, Qiliang Yuan a écrit : > Unbound workqueues use HK_TYPE_WQ and HK_TYPE_DOMAIN to determine > their default CPU affinity. These boundaries are currently static and > only enforced during early boot. > > Implement a housekeeping notifier to update unbound workqueue affinity. > > This enables unbound workqueue tasks to respect dynamic isolation > boundaries at runtime. > > Signed-off-by: Qiliang Yuan This is already handled by HK_TYPE_DOMAIN with cgroup v2. Thanks. -- Frederic Weisbecker SUSE Labs