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,URIBL_BLOCKED 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 6D9F6C35647 for ; Fri, 21 Feb 2020 13:51:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3579324650 for ; Fri, 21 Feb 2020 13:51:08 +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="eKWphM90" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729039AbgBUNvH (ORCPT ); Fri, 21 Feb 2020 08:51:07 -0500 Received: from merlin.infradead.org ([205.233.59.134]:45626 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728910AbgBUNuq (ORCPT ); Fri, 21 Feb 2020 08:50:46 -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=sYu+JxnZTtA31kq9+f82lnncD9DGOqvi2euVK6Brrok=; b=eKWphM90Sulztyajps6xzS7aiE jOGZx7cRlBZ+52JD7aHLQClJfcH8UlVwK3ea948XEVnYo0bwF1oga7aZDPvUJjOOm872xteqcf7u/ maXz4brq87JDkp4tEtbLgZbWo2Go5ky7iQIk/bOPU/EKMqvPSdFcHUrSBcla30xitvg2Uj5fs9gEB px82bn4+uoqtBLujHrNSrp2T5cHmfc3+EX49MYphdszT0ec3IIKS/I7jSQ67ex3HHFgfqW/BrgjUK MLkPLFp3+VrJMn43rh33ukJM/zOU4vthCgY8xpKp8k1kkQhxsF96ZC7/0VTTzf4jTvuaFE5WqfFlS C53vdYtQ==; 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 1j58gv-0006Ux-3I; Fri, 21 Feb 2020 13:50:05 +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 695293072C0; Fri, 21 Feb 2020 14:48:08 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id CB9BF29D740A9; Fri, 21 Feb 2020 14:50:00 +0100 (CET) Message-Id: <20200221134215.616973418@infradead.org> User-Agent: quilt/0.65 Date: Fri, 21 Feb 2020 14:34:26 +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, luto@kernel.org, tony.luck@intel.com, frederic@kernel.org, dan.carpenter@oracle.com, mhiramat@kernel.org Subject: [PATCH v4 10/27] rcu: Mark rcu_dynticks_curr_cpu_in_eqs() inline References: <20200221133416.777099322@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) Reviewed-by: Paul E. McKenney --- 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);