From patchwork Fri Oct 22 02:57:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12576959 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06033C433EF for ; Fri, 22 Oct 2021 02:59:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFAC06152B for ; Fri, 22 Oct 2021 02:59:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232709AbhJVDBh (ORCPT ); Thu, 21 Oct 2021 23:01:37 -0400 Received: from mx24.baidu.com ([111.206.215.185]:50704 "EHLO baidu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232663AbhJVDBg (ORCPT ); Thu, 21 Oct 2021 23:01:36 -0400 Received: from BC-Mail-Ex05.internal.baidu.com (unknown [172.31.51.45]) by Forcepoint Email with ESMTPS id 9D40DBC6B6D4C4BB2983; Fri, 22 Oct 2021 10:59:17 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-Ex05.internal.baidu.com (172.31.51.45) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2242.12; Fri, 22 Oct 2021 10:59:17 +0800 Received: from LAPTOP-UKSR4ENP.internal.baidu.com (172.31.63.8) by BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 22 Oct 2021 10:59:16 +0800 From: Cai Huoqing To: CC: Cai Huoqing , Bernard Metzler , Doug Ledford , Jason Gunthorpe , "Davidlohr Bueso" , "Paul E. McKenney" , "Josh Triplett" , Mathieu Desnoyers , Lai Jiangshan , Joel Fernandes , Ingo Molnar , Daniel Bristot de Oliveira , , , Subject: [PATCH v3 4/6] rcutorture: Make use of the helper function kthread_run_on_cpu() Date: Fri, 22 Oct 2021 10:57:07 +0800 Message-ID: <20211022025711.3673-5-caihuoqing@baidu.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211022025711.3673-1-caihuoqing@baidu.com> References: <20211022025711.3673-1-caihuoqing@baidu.com> MIME-Version: 1.0 X-Originating-IP: [172.31.63.8] X-ClientProxiedBy: BC-Mail-Ex28.internal.baidu.com (172.31.51.22) To BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Replace kthread_create_on_node/kthread_bind/wake_up_process() with kthread_run_on_cpu() to simplify the code. Signed-off-by: Cai Huoqing --- kernel/rcu/rcutorture.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 503e14e62e8f..6c3ba8c0d7ff 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -2025,9 +2025,8 @@ static int rcutorture_booster_init(unsigned int cpu) mutex_lock(&boost_mutex); rcu_torture_disable_rt_throttle(); VERBOSE_TOROUT_STRING("Creating rcu_torture_boost task"); - boost_tasks[cpu] = kthread_create_on_node(rcu_torture_boost, NULL, - cpu_to_node(cpu), - "rcu_torture_boost"); + boost_tasks[cpu] = kthread_run_on_cpu(rcu_torture_boost, NULL, + cpu, "rcu_torture_boost_%u"); if (IS_ERR(boost_tasks[cpu])) { retval = PTR_ERR(boost_tasks[cpu]); VERBOSE_TOROUT_STRING("rcu_torture_boost task create failed"); @@ -2036,8 +2035,6 @@ static int rcutorture_booster_init(unsigned int cpu) mutex_unlock(&boost_mutex); return retval; } - kthread_bind(boost_tasks[cpu], cpu); - wake_up_process(boost_tasks[cpu]); mutex_unlock(&boost_mutex); return 0; }