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([2601:188:c102:b180:1f8b:71d0:77b1:1f6e]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8caf77f6c16sm868811185a.10.2026.02.09.12.20.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 09 Feb 2026 12:20:53 -0800 (PST) From: Waiman Long X-Google-Original-From: Waiman Long Message-ID: <67f4b01a-7b23-49c2-a8db-059316300d39@redhat.com> Date: Mon, 9 Feb 2026 15:20:51 -0500 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH/for-next v4 3/4] cgroup/cpuset: Call housekeeping_update() without holding cpus_read_lock To: Chen Ridong , Tejun Heo , 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 Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org References: <20260206203712.1989610-1-longman@redhat.com> <20260206203712.1989610-4-longman@redhat.com> <119981d3-1cf9-412b-9b4d-bc4bcb188104@huaweicloud.com> Content-Language: en-US In-Reply-To: <119981d3-1cf9-412b-9b4d-bc4bcb188104@huaweicloud.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2/9/26 2:23 AM, Chen Ridong wrote: > > On 2026/2/7 4:37, Waiman Long wrote: >> +static cpumask_var_t isolated_hk_cpus; /* T */ > Can we get this from isolation.c instead? > > The name probably shouldn't include 'hk', since it refers to the inverse > (housekeeping CPUs) of isolated CPUs, right? The housekeeping_update() will create an inverse of the pass-in isolated cpumasks. As for the name, I add hk to indicate this cpumask is for passing to housekeeping_update() to update housekeeping cpumask. It is not directly related to the cpumasks in sched/isolation.c. Please let me know if you have  a suggestion for the name. Cheers, Longman