From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A29526AAB2; Fri, 8 Aug 2025 09:39:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754645985; cv=none; b=BCjWxgbPCivXL4j9Xjj+0M+6WG6LSqZgozhmcdE2b5UAc02OH+3Gfjn4NwgYVlVzh3xe4sg0l7WxhsaH4VgZeJWqmx3TWodTjaVpOJhcctjBvIhL2ilt3DnHEYya9ozCtqaABtd05RAglkd38RxxudUNcywasCJYwDnNO/80Wjc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754645985; c=relaxed/simple; bh=5CfI4XvynZwvr40M7GsPB0Pq2bvqxRwdnQ6OwP/wkBs=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=rSzliXZavZsQUrT6seFwsDKj1ByYlmjv+hOhQcrexlGPBbg4j4AIDTrA45gW5cXUo7+EFmFHLf8sDriGwNTXPXv4yv3a39CC1qj8olsPCnMIQqnScOF/20M3Fn+lhBPzTh5C+UZxkn6aZ0G67gomZRfd7DndKDA7ye/0zSxrkoU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=none smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4byzWx5rJVzKHMsF; Fri, 8 Aug 2025 17:39:41 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.75]) by mail.maildlp.com (Postfix) with ESMTP id E50531A0359; Fri, 8 Aug 2025 17:39:40 +0800 (CST) Received: from hulk-vt.huawei.com (unknown [10.67.174.121]) by APP2 (Coremail) with SMTP id Syh0CgCXo7XPxZVooOS_Cw--.51716S2; Fri, 08 Aug 2025 17:39:40 +0800 (CST) From: Chen Ridong To: tj@kernel.org, hannes@cmpxchg.org, mkoutny@suse.com, longman@redhat.com, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com Cc: cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, lujialin4@huawei.com, chenridong@huawei.com Subject: [PATCH -next 0/4] some optimization for cpuset Date: Fri, 8 Aug 2025 09:25:11 +0000 Message-Id: <20250808092515.764820-1-chenridong@huaweicloud.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:Syh0CgCXo7XPxZVooOS_Cw--.51716S2 X-Coremail-Antispam: 1UD129KBjvdXoWrtFW7uw4Dtryktw43ury7Awb_yoWfGFc_Aa y8ZFyDtry7JFWSqa4Utrs0yFWDKr4UCr18A3WktrWayFnrA3ZxXw4ay3yjqrnFvFs7Ar1U JasrKrs5Xw1DJjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbI8YFVCjjxCrM7AC8VAFwI0_Xr0_Wr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I 0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40E x7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc7CjxVAa w2AFwI0_GFv_Wryl42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxV Aqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a 6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6x kF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AK xVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvj xUxo7KDUUUU X-CM-SenderInfo: hfkh02xlgr0w46kxt4xhlfz01xgou0bp/ From: Chen Ridong This patch series includes the following improvements: 1. Removes the redundant CS_ONLINE flag. 2. Introduces new helper functions guard_cpuset() and guard_cpus_read_and_cpuset(). 3. Replaces manual locking patterns with the new guard helpers. Chen Ridong (4): cpuset: remove redundant CS_ONLINE flag cpuset: add helpers for cpuset related locks cpuset: use guard_cpus_read_and_cpuset to make code concise cpuset: replace cpuset_lock() with guard_cpuset() include/linux/cgroup.h | 5 ++++ include/linux/cpuset.h | 3 +- kernel/cgroup/cpuset-internal.h | 5 ++-- kernel/cgroup/cpuset-v1.c | 22 +++++--------- kernel/cgroup/cpuset.c | 52 ++++++++++----------------------- kernel/sched/syscalls.c | 15 ++++------ 6 files changed, 37 insertions(+), 65 deletions(-) -- 2.34.1