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=-11.4 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 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 AEBE9C433F5 for ; Wed, 15 Sep 2021 23:45:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 98F9760F8F for ; Wed, 15 Sep 2021 23:45:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233096AbhIOXq7 (ORCPT ); Wed, 15 Sep 2021 19:46:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:48748 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232836AbhIOXq6 (ORCPT ); Wed, 15 Sep 2021 19:46:58 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8D7FC610E8; Wed, 15 Sep 2021 23:45:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631749538; bh=2RTg2+cSa0gROS3lcGbDH7nYj3g+s7AzMM0dBHEAEqM=; h=Date:From:To:Cc:Subject:Reply-To:From; b=cdC2D6ojS3PUpCSqV9xLyA65S4RaQxTGKQ1vnt4hojKoxCaGM7L1EJKY4Yh5GO4tN 7qXf+0d5YHbsJFvkeRvzkqywDfrIT/beX9ZWFEYVfyupI8dMsBgTPXPz/Balb2v7yK inhXhAbGE60gmCJXKrfph6Fu/yniG4DeNCDVLotzVHS12X7Yyjmz2zp7np8nmTA2+y /rmsx9k8w0yD6z8Xy3CyKxRnl+kPxjzP8fnRJcDaX6jwq/BVa8ZlCfZZ94rTFY4Tdy Kiz1WPvfyBTNSO5a+ud+t7y9bmH2bRgxxPu4/SpNxu7XY/LnIOHolEN5i0XhzmxVE4 hB8ZX2m43fyOg== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 548C35C054E; Wed, 15 Sep 2021 16:45:38 -0700 (PDT) Date: Wed, 15 Sep 2021 16:45:38 -0700 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 rcu 0/13] Tasks RCU updates for v5.16 Message-ID: <20210915234538.GA3907674@paulmck-ThinkPad-P17-Gen-1> Reply-To: paulmck@kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series provides a number of bug fixes for RCU Tasks Trace, most of which were uncovered in review sessions with Boqun Feng, Frederic Weisbecker, and Neeraj Upadhyay. 1. rcu-tasks: Wait for trc_read_check_handler() IPIs. 2. rcu-tasks: Simplify trc_read_check_handler() atomic operations. 3. rcu-tasks: Add trc_inspect_reader() checks for exiting critical section. 4. rcu-tasks: Remove second argument of rcu_read_unlock_trace_special(). 5. rcu-tasks: Fix s/instruction/instructions/ typo in comment. 6. rcu-tasks: Move RTGS_WAIT_CBS to beginning of rcu_tasks_kthread() loop. 7. rcu-tasks: Fix s/rcu_add_holdout/trc_add_holdout/ typo in comment, courtesy of Neeraj Upadhyay. 8. rcu-tasks: Correct firstreport usage in check_all_holdout_tasks_trace, courtesy of Neeraj Upadhyay. 9. rcu-tasks: Correct comparisons for CPU numbers in show_stalled_task_trace, courtesy of Neeraj Upadhyay. 10. rcu-tasks: Clarify read side section info for rcu_tasks_rude GP primitives, courtesy of Neeraj Upadhyay. 11. rcu-tasks: Fix read-side primitives comment for call_rcu_tasks_trace, courtesy of Neeraj Upadhyay. 12. rcu-tasks: Fix IPI failure handling in trc_wait_for_one_reader, courtesy of Neeraj Upadhyay. 13. rcu-tasks: Update comments to cond_resched_tasks_rcu_qs(). Thanx, Paul ------------------------------------------------------------------------ b/include/linux/rcupdate_trace.h | 5 +- b/kernel/rcu/tasks.h | 14 +++++ kernel/rcu/tasks.h | 97 ++++++++++++++++----------------------- 3 files changed, 57 insertions(+), 59 deletions(-)