From patchwork Fri Oct 22 02:57:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cai,Huoqing" X-Patchwork-Id: 12576961 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 CAF9BC433EF for ; Fri, 22 Oct 2021 02:59:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B43BC6142A for ; Fri, 22 Oct 2021 02:59:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232738AbhJVDBo (ORCPT ); Thu, 21 Oct 2021 23:01:44 -0400 Received: from mx24.baidu.com ([111.206.215.185]:50834 "EHLO baidu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232719AbhJVDBj (ORCPT ); Thu, 21 Oct 2021 23:01:39 -0400 Received: from BC-Mail-EX08.internal.baidu.com (unknown [172.31.51.48]) by Forcepoint Email with ESMTPS id D41EB5A03CA4A1B0F532; Fri, 22 Oct 2021 10:59:20 +0800 (CST) Received: from BJHW-MAIL-EX27.internal.baidu.com (10.127.64.42) by BC-Mail-EX08.internal.baidu.com (172.31.51.48) 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 10:59:20 +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 10:59:19 +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 5/6] trace/osnoise: Make use of the helper function kthread_run_on_cpu() Date: Fri, 22 Oct 2021 10:57:08 +0800 Message-ID: <20211022025711.3673-6-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_cpu/wake_up_process() with kthread_run_on_cpu() to simplify the code. Signed-off-by: Cai Huoqing --- kernel/trace/trace_osnoise.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index ce053619f289..cbd78fd5e491 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -1525,7 +1525,7 @@ static int start_kthread(unsigned int cpu) #else snprintf(comm, 24, "osnoise/%d", cpu); #endif - kthread = kthread_create_on_cpu(main, NULL, cpu, comm); + kthread = kthread_run_on_cpu(main, NULL, cpu, comm); if (IS_ERR(kthread)) { pr_err(BANNER "could not start sampling thread\n"); @@ -1534,7 +1534,6 @@ static int start_kthread(unsigned int cpu) } per_cpu(per_cpu_osnoise_var, cpu).kthread = kthread; - wake_up_process(kthread); return 0; }