From patchwork Thu Jan 28 17:12:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frederic Weisbecker X-Patchwork-Id: 373785 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=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 D8BACC433DB for ; Thu, 28 Jan 2021 17:45:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9620164DEB for ; Thu, 28 Jan 2021 17:45:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232389AbhA1Rpe (ORCPT ); Thu, 28 Jan 2021 12:45:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:50680 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232976AbhA1RNK (ORCPT ); Thu, 28 Jan 2021 12:13:10 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5DEA164DE2; Thu, 28 Jan 2021 17:12:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1611853948; bh=qX4hPkooYavvdfeBxEHrdI51Oy51iA33R7jRCvW3kfU=; h=From:To:Cc:Subject:Date:From; b=d1T2BttiKci680XY937MvmDCtHihETa/YRPO57hKDucKypnoSkQDkCW4SvSTXigs9 3714uz/7sKEIm+2Uvfq3XoioOmLCkfacjAyC1TkxRzol/oFryWxkuCsVJ+R6raMLFx kbJuKEY8nUCurVKya34H0Gj3YutJYD+yv9Ca8MLyeNqGWiobhMXBtsQP/pjrCLdR24 gWslLDFV7ku5MMu6Z+flnYNiHmEdKOKB9aMqO6mL8OwvmivS19A2h1uFH5R28DzyFv ns6fJlQ9/wwVsEiSqhdiSs5xKk3/T5DWsPptnZko9ouT+N3cIJZeKcwgDi4LA+akhu QzQeshHuflWlw== From: Frederic Weisbecker To: "Paul E . McKenney" Cc: LKML , Frederic Weisbecker , Boqun Feng , Lai Jiangshan , Neeraj Upadhyay , Josh Triplett , Stable , Joel Fernandes Subject: [PATCH 00/16] rcu/nocb updates Date: Thu, 28 Jan 2021 18:12:06 +0100 Message-Id: <20210128171222.131380-1-frederic@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org So this set has grown further than I expected. This addresses most reviews from Paul and also consolidates the nocb timers code. Please mind the very first patch that is a stable bugfix. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git rcu/dev HEAD: 75991420c246c26f598602da1a70947b5bdf77b6 Thanks, Frederic --- Frederic Weisbecker (16): rcu/nocb: Fix potential missed nocb_timer rearm rcu/nocb: Comment the reason behind BH disablement on batch processing rcu/nocb: Forbid NOCB toggling on offline CPUs rcu/nocb: Only (re-)initialize segcblist when needed on CPU up rcu/nocb: Disable bypass when CPU isn't completely offloaded rcu/nocb: Avoid confusing double write of rdp->nocb_cb_sleep rcu/nocb: Rename nocb_gp_update_state to nocb_gp_update_state_deoffloading rcu/nocb: Move trace_rcu_nocb_wake() calls outside nocb_lock when possible rcu/nocb: Merge nocb_timer to the rdp leader rcu/nocb: Directly call __wake_nocb_gp() from bypass timer rcu/nocb: Allow de-offloading rdp leader rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup rcu/nocb: Delete bypass_timer upon nocb_gp wakeup rcu/nocb: Only cancel nocb timer if not polling rcu/nocb: Prepare for finegrained deferred wakeup rcu/nocb: Unify timers include/linux/rcu_segcblist.h | 7 +- include/trace/events/rcu.h | 1 + kernel/rcu/tree.c | 12 +- kernel/rcu/tree.h | 9 +- kernel/rcu/tree_plugin.h | 280 ++++++++++++++++++++++-------------------- 5 files changed, 163 insertions(+), 146 deletions(-)