Received: by 2002:a05:6358:3188:b0:123:57c1:9b43 with SMTP id q8csp27549562rwd; Tue, 4 Jul 2023 04:43:48 -0700 (PDT) X-Google-Smtp-Source: APBJJlGRn+Sv9abctU2xBCScGDSkIC5JbQ5ddq5caLCoXKXW1nzdpWyr9oeIuYwC5mNeEfc6hXoz X-Received: by 2002:a05:6359:67a3:b0:134:e301:2c21 with SMTP id sq35-20020a05635967a300b00134e3012c21mr9655557rwb.15.1688471028340; Tue, 04 Jul 2023 04:43:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1688471028; cv=none; d=google.com; s=arc-20160816; b=RKRcokFvA3lXb0PuwxfJ2pFl82Hq5B9OQxHJZxL32/7faqZQ7x4QpopSd2jEKzKf/o TznUaHP39M+g+HfR7aLfxhtc4pbF5s1SIobQZAMrG7Esv3vllygOVjlD/R85RUGAF6Bz hMs3rl/Fvd+z1hSpAqUl4KDUyW3z5hCThSYr5sPjWU0a6SiXdjtg4cNBRRGzyWea+mES mK/Bh9Pt0Ret9OVtP8j0IuqZXGBUmjv90saD9DAzrQrvNQK5eYBVb6o6l3j7Q1ti6MnH 8Evx+EwyoIdfySX1MGBvJZgi1VnNkoYj8tCQTuzyiLkDKW+8O41nMfc6nxKekypWUiXE TfIg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=DF/MEraCiriF2LWhe9I6HZq/LqcmAkRYd6ae06SPk1M=; fh=xm61FqaKFbVtJj3DZjMBwIjT3viqbFfn4Ws5hFHxOsg=; b=RSgWCTRorgWesiEEeQacYhhcnFix4mvuWaOHQN2KMrkTZlNao3EZ7Kk7tDtf5by8yW 282x9Xn8Wpx8pYb4BOATQ3k+MCqjGPLFMoJ9zszwWqmc/HZPE29rhvtS+FlxQTnXCiCb mU0+xwS3ko6iP/ke7yp8VZ3OBcU6emR6DLeZ0Rw8HXqgRifR4ksTkgQN+XBCCxBflWux iNV7f0LEpI8pcEhzK3BI0VQNDQB3+dC0Ltk0wm9Q5L7OWagwZpFVNXwkbd/FuPNMrqiK UMRgyaMzbqI7ZWdkUhRUwy+CoLgo6fFTZqUocrL4x46tD42iDWBMUXygTmIBj26TEGqC n1PA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id s197-20020a632cce000000b0055ac5fed588si17071653pgs.154.2023.07.04.04.43.10; Tue, 04 Jul 2023 04:43:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231228AbjGDLag (ORCPT + 99 others); Tue, 4 Jul 2023 07:30:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231140AbjGDLae (ORCPT ); Tue, 4 Jul 2023 07:30:34 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 930E4FB; Tue, 4 Jul 2023 04:30:33 -0700 (PDT) Received: from canpemm500002.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4QwLDt12Xxz1HCsN; Tue, 4 Jul 2023 19:30:06 +0800 (CST) Received: from huawei.com (10.174.151.185) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Tue, 4 Jul 2023 19:30:29 +0800 From: Miaohe Lin To: , , , CC: , , Subject: [PATCH] cgroup/cpuset: simplify the percpu kthreads check in update_tasks_cpumask() Date: Tue, 4 Jul 2023 19:30:49 +0800 Message-ID: <20230704113049.1019118-1-linmiaohe@huawei.com> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.174.151.185] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To canpemm500002.china.huawei.com (7.192.104.244) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kthread_is_per_cpu() can be called directly without checking whether PF_KTHREAD is set in task->flags. So remove PF_KTHREAD check to make code more concise. Signed-off-by: Miaohe Lin --- kernel/cgroup/cpuset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 58e6f18f01c1..601c40da8e03 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -1230,7 +1230,7 @@ static void update_tasks_cpumask(struct cpuset *cs, struct cpumask *new_cpus) /* * Percpu kthreads in top_cpuset are ignored */ - if ((task->flags & PF_KTHREAD) && kthread_is_per_cpu(task)) + if (kthread_is_per_cpu(task)) continue; cpumask_andnot(new_cpus, possible_mask, cs->subparts_cpus); } else { -- 2.33.0