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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 819F1C433EF for ; Thu, 19 May 2022 14:58:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240053AbiESO6j (ORCPT ); Thu, 19 May 2022 10:58:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41078 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238205AbiESO6f (ORCPT ); Thu, 19 May 2022 10:58:35 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82047D6819 for ; Thu, 19 May 2022 07:58:32 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C8035619C4 for ; Thu, 19 May 2022 14:58:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0FC86C34100; Thu, 19 May 2022 14:58:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1652972311; bh=0ikO8WJtv+iIAdZuEolgn4F85pH+GYjf8PmFDWGYUMY=; h=From:To:Cc:Subject:Date:From; b=NrQAHBoxm/hwymL6D9kDW6tsnESA0/owB75UKKor4XuD3qfBKj5kvCazQKEyWXR8f CtsSiiqNHhLlL1h5cYikzqBLwmuqPLidoRku+TQrqwlLJSqIzCZi2d6bWK6JCBFQu0 b0wwlwYDd6Obl9CDKWbwlK65aUWllJRPm/rShoTeM5f1DaMidTgzZN4ZJ331dNMw2T icwF9QImsGb4VGfNpvnrqai4KeSMUN9ra78iabRwXe6ehpZlV68R7mApHZ0H4b+pGD 2JMbY/11+y7RlEat9kEzlLapozyPyDjKRcB1BBR3P/NzJQlur4SywIy3NzZDwsMjQn Cv+e101x/usjA== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Peter Zijlstra , Phil Auld , Alex Belits , Nicolas Saenz Julienne , Xiongfeng Wang , Neeraj Upadhyay , Thomas Gleixner , Yu Liao , Boqun Feng , "Paul E . McKenney" , Marcelo Tosatti , Paul Gortmaker , Uladzislau Rezki , Joel Fernandes Subject: [PATCH 00/21] rcu/context-tracking: Merge RCU eqs-dynticks counter to context tracking v3 Date: Thu, 19 May 2022 16:58:02 +0200 Message-Id: <20220519145823.618983-1-frederic@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Rebase on latest rcu:dev * Unconfuse Kconfig entries and introduce CONFIG_CONTEXT_TRACKING_IDLE along with CONFIG_CONTEXT_TRACKING_USER. CONFIG_CONTEXT_TRACKING then becomes the meeting point. * Add a dependency on CONFIG_HAVE_CONTEXT_TRACKING_USER to CONFIG_CONTEXT_TRACKING_USER so that Kconfig warns if one of its selectors doesn't meet the requirement. * Add Kconfig help comments * Pull CONTEXT_TRACKING[_IDLE] out of CONFIG_GENERIC_CLOCKEVENTS dependency (fix build issue) * Tag rcu_irq_*_irqson() as noinstr * Move rcu_irq_work_resched() declaration from rcutree.h to rcupdate.h (fix build splat on rcutiny) * Reorder eqs functions on context_tracking.c (cosmetic) * Make CT_WARN_ON() a true stub when CONFIG_CONTEXT_TRACKING_USER=n * Add Paul as context tracking maintainer git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git rcu/context-tracking-v3 HEAD: 6153dca9e37b244684bf472728f5c3688c5b0aca Thanks, Frederic --- Frederic Weisbecker (21): context_tracking: Remove unused context_tracking_in_user() rcu: Tag rcu_irq_*_irqson() as noinstr context_tracking: Add a note about noinstr VS unsafe context tracking functions context_tracking: Rename __context_tracking_enter/exit() to __ct_user_enter/exit() context_tracking: Rename context_tracking_user_enter/exit() to user_enter/exit_callable() context_tracking: Rename context_tracking_enter/exit() to ct_user_enter/exit() context_tracking: Rename context_tracking_cpu_set() to ct_cpu_track_user() context_tracking: Split user tracking Kconfig context_tracking: Take idle eqs entrypoints over RCU context_tracking: Take IRQ eqs entrypoints over RCU context_tracking: Take NMI eqs entrypoints over RCU rcu/context-tracking: Remove rcu_irq_enter/exit() rcu/context_tracking: Move dynticks counter to context tracking rcu/context_tracking: Move dynticks_nesting to context tracking rcu/context_tracking: Move dynticks_nmi_nesting to context tracking rcu/context-tracking: Move deferred nocb resched to context tracking rcu/context-tracking: Move RCU-dynticks internal functions to context_tracking rcu/context-tracking: Remove unused and/or unecessary middle functions context_tracking: Convert state to atomic_t rcu/context_tracking: Merge dynticks counter and context tracking states MAINTAINERS: Add Paul as context tracking maintainer .../RCU/Design/Requirements/Requirements.rst | 10 +- Documentation/RCU/stallwarn.rst | 6 +- .../time/context-tracking/arch-support.txt | 6 +- MAINTAINERS | 1 + arch/Kconfig | 8 +- arch/arm/Kconfig | 2 +- arch/arm/kernel/entry-common.S | 4 +- arch/arm/kernel/entry-header.S | 12 +- arch/arm/mach-imx/cpuidle-imx6q.c | 5 +- arch/arm64/Kconfig | 2 +- arch/arm64/kernel/entry-common.c | 14 +- arch/csky/Kconfig | 2 +- arch/csky/kernel/entry.S | 8 +- arch/mips/Kconfig | 2 +- arch/powerpc/Kconfig | 2 +- arch/powerpc/include/asm/context_tracking.h | 2 +- arch/riscv/Kconfig | 2 +- arch/riscv/kernel/entry.S | 12 +- arch/sparc/Kconfig | 2 +- arch/sparc/kernel/rtrap_64.S | 2 +- arch/x86/Kconfig | 4 +- arch/x86/mm/fault.c | 2 +- drivers/acpi/processor_idle.c | 5 +- drivers/cpuidle/cpuidle-psci.c | 8 +- drivers/cpuidle/cpuidle-riscv-sbi.c | 8 +- drivers/cpuidle/cpuidle.c | 9 +- include/linux/context_tracking.h | 95 ++-- include/linux/context_tracking_irq.h | 21 + include/linux/context_tracking_state.h | 109 +++- include/linux/entry-common.h | 10 +- include/linux/hardirq.h | 12 +- include/linux/rcupdate.h | 17 +- include/linux/rcutiny.h | 6 - include/linux/rcutree.h | 9 +- include/linux/tracepoint.h | 4 +- init/Kconfig | 4 +- kernel/context_tracking.c | 600 +++++++++++++++++++-- kernel/cpu_pm.c | 8 +- kernel/entry/common.c | 16 +- kernel/extable.c | 4 +- kernel/locking/lockdep.c | 2 +- kernel/rcu/Kconfig | 2 + kernel/rcu/rcu.h | 4 - kernel/rcu/tree.c | 476 +--------------- kernel/rcu/tree.h | 8 - kernel/rcu/tree_exp.h | 2 +- kernel/rcu/tree_plugin.h | 38 +- kernel/rcu/tree_stall.h | 8 +- kernel/rcu/update.c | 2 +- kernel/sched/core.c | 2 +- kernel/sched/idle.c | 10 +- kernel/sched/sched.h | 1 + kernel/softirq.c | 4 +- kernel/time/Kconfig | 37 +- kernel/time/tick-sched.c | 2 +- kernel/trace/trace.c | 8 +- 56 files changed, 905 insertions(+), 756 deletions(-)