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=-3.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS autolearn=no 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 22E00C352A4 for ; Wed, 12 Feb 2020 21:14:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EBDE0217F4 for ; Wed, 12 Feb 2020 21:14:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="wSlGc3Pi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729224AbgBLVOP (ORCPT ); Wed, 12 Feb 2020 16:14:15 -0500 Received: from merlin.infradead.org ([205.233.59.134]:33478 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729196AbgBLVON (ORCPT ); Wed, 12 Feb 2020 16:14:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-Id:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=NXy2WyoL4s4z0mcmpcFDbcqBMvtipXVeSVJos+aTK1g=; b=wSlGc3Pii671R4vFgbR2j+9Hx/ 5wr6AMehILQmmjqAcaAL0LE3SQaUJTLr3HznSphmGS1YWoyMm90aInwXE2ulDWJAtdgR2138/XSdE 45GHuw12pT2rNG6QiawLpRPGr7Pw9XZFAY7C7sc/23IXfHFqRKnZiZkJjOf8gezmv59DiFt81xTB2 cayVher4/sIOAjfKC0Jbj8ki1Bzv9DVN0ezz3RIz+H1yxD3yBHIWfNAxEbGYIEkfncwAlcl+Daaqu a7O+74tT2bMfC4CIANjZ+xfhVfAmCjsv9aqOHoWPdoQ0m+M8L6fAP7JbNnqZWS1S7s97TOemW7VIm Fk8w3t3Q==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1j1zKK-0002Kk-K5; Wed, 12 Feb 2020 21:13:44 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 3C07C30220B; Wed, 12 Feb 2020 22:11:52 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 7A94E203A8996; Wed, 12 Feb 2020 22:13:41 +0100 (CET) Message-Id: <20200212210749.915180520@infradead.org> User-Agent: quilt/0.65 Date: Wed, 12 Feb 2020 22:01:41 +0100 From: Peter Zijlstra To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, rostedt@goodmis.org Cc: peterz@infradead.org, mingo@kernel.org, joel@joelfernandes.org, gregkh@linuxfoundation.org, gustavo@embeddedor.com, tglx@linutronix.de, paulmck@kernel.org, josh@joshtriplett.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com Subject: [PATCH v2 2/9] rcu: Mark rcu_dynticks_curr_cpu_in_eqs() inline References: <20200212210139.382424693@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since rcu_is_watching() is notrace (and needs to be, as it can be called from the tracers), make sure everything it in turn calls is notrace too. To that effect, mark rcu_dynticks_curr_cpu_in_eqs() inline, which implies notrace, as the function is tiny. Signed-off-by: Peter Zijlstra (Intel) --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -294,7 +294,7 @@ static void rcu_dynticks_eqs_online(void * * No ordering, as we are sampling CPU-local information. */ -static bool rcu_dynticks_curr_cpu_in_eqs(void) +static inline bool rcu_dynticks_curr_cpu_in_eqs(void) { struct rcu_data *rdp = this_cpu_ptr(&rcu_data);