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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 BD986C433DB for ; Thu, 4 Mar 2021 01:00:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 91B5064EFE for ; Thu, 4 Mar 2021 01:00:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233542AbhCDBAd (ORCPT ); Wed, 3 Mar 2021 20:00:33 -0500 Received: from mail.kernel.org ([198.145.29.99]:55642 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240090AbhCDABC (ORCPT ); Wed, 3 Mar 2021 19:01:02 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id CE27364F6C; Thu, 4 Mar 2021 00:00:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614816021; bh=pJYlv08oU8/9jzKWYdo3lStoGM9KGgDAdtLC9Ufx7aw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=utI5e0G/PEr1OYaoAXPh8+o+wQtRPd3rMqsgKW59ibqs1qj22oWvqMfUzTXI1GM87 5YTb3fw47YJXLdM8Z3pth4rquBTD2GXTK6qR/LsDQGkGmI8LrSq3iArJgFyLhvnct4 vBLbLVIydn4WPbHljegmnnGH2uvPE3ZWgzQZpZsvkyBlcaeJ3yc2RelqcAxb8ugkd2 BjNahX9F1CrG/I5MB5qVozCSSJ3PNI5KjCk/pns+6wl7RvO57l6qVC0InB0djF3vf/ qxq1ACXMttmQKtFkyyAISpuAd+JjQdVnJfhKrEIUWLbPN5lavAmBq7YV71xHyAvUSS qv2GFIsCBTAow== From: paulmck@kernel.org To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, Frederic Weisbecker , "Rafael J . Wysocki" , "Paul E . McKenney" Subject: [PATCH tip/core/rcu 01/10] rcu: Remove superfluous rdp fetch Date: Wed, 3 Mar 2021 16:00:10 -0800 Message-Id: <20210304000019.22459-1-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20210303235958.GA22373@paulmck-ThinkPad-P72> References: <20210303235958.GA22373@paulmck-ThinkPad-P72> Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org From: Frederic Weisbecker Cc: Rafael J. Wysocki Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Frederic Weisbecker Signed-off-by: Paul E. McKenney --- kernel/rcu/tree.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index da6f521..cdf091f 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -648,7 +648,6 @@ static noinstr void rcu_eqs_enter(bool user) instrumentation_begin(); trace_rcu_dyntick(TPS("Start"), rdp->dynticks_nesting, 0, atomic_read(&rdp->dynticks)); WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) && !user && !is_idle_task(current)); - rdp = this_cpu_ptr(&rcu_data); rcu_prepare_for_idle(); rcu_preempt_deferred_qs(current); -- 2.9.5