From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34F3AC43381 for ; Wed, 3 Feb 2021 16:07:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E9FB764E31 for ; Wed, 3 Feb 2021 16:07:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234856AbhBCQHC (ORCPT ); Wed, 3 Feb 2021 11:07:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:35564 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234819AbhBCQGj (ORCPT ); Wed, 3 Feb 2021 11:06:39 -0500 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3AFBD64F99; Wed, 3 Feb 2021 16:05:50 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94) (envelope-from ) id 1l7Kf7-009J6b-5I; Wed, 03 Feb 2021 11:05:49 -0500 Message-ID: <20210203160549.047157144@goodmis.org> User-Agent: quilt/0.66 Date: Wed, 03 Feb 2021 11:05:20 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Andrew Morton , Qiujun Huang Subject: [for-next][PATCH 03/15] tracing: Remove get/put_cpu() from function_trace_init References: <20210203160517.982448432@goodmis.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Qiujun Huang Since commit b6f11df26fdc ("trace: Call tracing_reset_online_cpus before tracer->init()"), get/put_cpu() are not needed anymore. We can use raw_smp_processor_id() instead. Link: https://lkml.kernel.org/r/20201230140521.31920-1-hqjagain@gmail.com Signed-off-by: Qiujun Huang Signed-off-by: Steven Rostedt (VMware) --- kernel/trace/trace_functions.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c index c5095dd28e20..f67aec5bb771 100644 --- a/kernel/trace/trace_functions.c +++ b/kernel/trace/trace_functions.c @@ -106,8 +106,7 @@ static int function_trace_init(struct trace_array *tr) ftrace_init_array_ops(tr, func); - tr->array_buffer.cpu = get_cpu(); - put_cpu(); + tr->array_buffer.cpu = raw_smp_processor_id(); tracing_start_cmdline_record(); tracing_start_function_trace(tr); -- 2.29.2