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=-19.4 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,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 82A03C4332F for ; Thu, 16 Sep 2021 12:11:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E49361283 for ; Thu, 16 Sep 2021 12:11:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239311AbhIPMM2 (ORCPT ); Thu, 16 Sep 2021 08:12:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:59138 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239283AbhIPMMT (ORCPT ); Thu, 16 Sep 2021 08:12:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6174560F4A; Thu, 16 Sep 2021 12:10:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631794258; bh=svVCg+n5Jf6lVzK0daIYKluiQvyzcAJGbbRa9Dg1Ptg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tH4Y9fHRFU7QTvuqlBiMLZ1lFSU9oiZ7n1oXyVNxUcg1eyifg1wUYOB+ZW3mmCMRB 3ly/wUyg26p+m9o2xOkWTB0jmcnOFd63Y2scndNP3sjBL2ooGPnCT9G4apmbBDbHfQ M3m2Rh92DsPH9OqonvYkaWtcooGrAY54hzXddcf6fPZFPB1uIDwZriuKLllaU4Tc6U 0ah3zIQM9zzRu1D5WpezMpsX50yowI+6t4dehxIYVBKtq2M1OKat8DYHzOoMBmY5qK nQqSMyBYYm45q8Y5e7O5aCubF+V+3KA83GDIIo2YF/shOkCt8AznJ46beuDqBjvtFd 6D5inkEHeLQ3g== From: Frederic Weisbecker To: "Paul E . McKenney" Cc: LKML , Frederic Weisbecker , rcu@vger.kernel.org, urezki@gmail.com, boqun.feng@gmail.com, Neeraj Upadhyay , joel@joelfernandes.org Subject: [PATCH 2/4] rcu: Remove useless WRITE_ONCE() on rcu_data.exp_deferred_qs Date: Thu, 16 Sep 2021 14:10:46 +0200 Message-Id: <20210916121048.36623-3-frederic@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210916121048.36623-1-frederic@kernel.org> References: <20210916121048.36623-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This variable is never written nor read remotely. Remove this confusion. Signed-off-by: Frederic Weisbecker --- kernel/rcu/tree_exp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h index f3947c49eee7..4266610b4587 100644 --- a/kernel/rcu/tree_exp.h +++ b/kernel/rcu/tree_exp.h @@ -255,7 +255,7 @@ static void rcu_report_exp_cpu_mult(struct rcu_node *rnp, */ static void rcu_report_exp_rdp(struct rcu_data *rdp) { - WRITE_ONCE(rdp->exp_deferred_qs, false); + rdp->exp_deferred_qs = false; rcu_report_exp_cpu_mult(rdp->mynode, rdp->grpmask, true); } -- 2.25.1