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=-12.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 444C8C43331 for ; Thu, 4 Mar 2021 01:08:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1EA0364E7C for ; Thu, 4 Mar 2021 01:08:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356267AbhCDBEB (ORCPT ); Wed, 3 Mar 2021 20:04:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:53822 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1451109AbhCDAaC (ORCPT ); Wed, 3 Mar 2021 19:30:02 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0707964E51; Thu, 4 Mar 2021 00:29:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614817760; bh=AlcP9oRR1CF3YUw+Ll0+91xPhKLXEaKJyeIgn+etWDE=; h=Date:From:To:Cc:Subject:Reply-To:From; b=ne4K+3YvR08R/ULpHZO7coBm/H6RPlYinIiBFtC934Cy/UizfenHcEVufiBTMtTD/ fNdvpqFr3IAWeP+KRQE28PNLVi9gQDcSgAJYhUv7cjF8TeCymEJUQMMVq64A5pP3u1 hWhxJ5la3a+FiBDjFD5gFly7famIDuaqJPPAGbuxUJe+2yK6V+DRGCOxmCSM1OQpLC G9nWYk8rvdXgw/uFuaiDd1wXvOfDJIou756J3nKEdyvJvj2bdRXfx66wWr1OyAUNqp FqDVe2jTXsh6hhimtxojvUnglPDMrDhs4k7bnuOr2z1ITMQy10KAfqxSWIeGvyTNI9 b6JtbKKQOavmg== Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id A06F93522591; Wed, 3 Mar 2021 16:29:19 -0800 (PST) Date: Wed, 3 Mar 2021 16:29:19 -0800 From: "Paul E. McKenney" 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 Subject: [PATCH tip/core/rcu 0/5] Realtime-related RCU updates for v5.13 Message-ID: <20210304002919.GA24003@paulmck-ThinkPad-P72> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! These commits are related to RCU's realtime support, including better testing preemption, improving testing of RCU priority boosting, and ensuring that at least one rcutorture scenario tests use_softirq=0. 1. Expedite deboost in case of deferred quiescent state. 2. Make TREE03 use real-time tree.use_softirq setting. 3. Fix testing of RCU priority boosting. 4. Make rcu_read_unlock_special() expedite strict grace periods. 5. Make jitter.sh handle large systems. Thanx, Paul ------------------------------------------------------------------------ kernel/rcu/rcutorture.c | 36 +++++++------ kernel/rcu/tree_plugin.h | 27 +++++---- tools/testing/selftests/rcutorture/bin/jitter.sh | 8 +- tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot | 1 4 files changed, 42 insertions(+), 30 deletions(-)