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 15861C43334 for ; Thu, 30 Jun 2022 00:10:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231404AbiF3AKM (ORCPT ); Wed, 29 Jun 2022 20:10:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230221AbiF3AKK (ORCPT ); Wed, 29 Jun 2022 20:10:10 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78E0063E6 for ; Wed, 29 Jun 2022 17:10:09 -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 ED68C61EB3 for ; Thu, 30 Jun 2022 00:10:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51E57C3411E; Thu, 30 Jun 2022 00:10:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656547808; bh=aEJLDcyB+cI1alok9yAR+0Y4kkMSOgI73S+hekkJ5gg=; h=Date:From:To:Cc:Subject:Reply-To:References:In-Reply-To:From; b=F+leAMVAZ6dGX3ie/JQaVAZneTwm/xchd9Gc1OW5HHLSpSYpEaUg33FzdSY3feOu7 dza5H/gLJGUnhnmEDsefAVC9Wd1Pm1Jj45UA+jZ5wn5Xfts0ufCvTDUpsBXzAlQB9F cQr/gPsi/6RN/ikBQ1svIRIISJNJI8elRhK2CfPVhMlZddhdZ4FfqSe/v+co+nsRM6 MG3vAcmruN7Y8ku/xSUvQS7NyLCbGf3n3PnuXE8HenedrfvPaqutfVXqmAnBhIxv1b YDEHXpdklo1ErfxDTiwJOQFOO3dtBGtdHln+wUM4eG6KxK0NFg3YlE1SovlITbefbH fDMfMyIL14ohQ== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id E51335C0E5F; Wed, 29 Jun 2022 17:10:07 -0700 (PDT) Date: Wed, 29 Jun 2022 17:10:07 -0700 From: "Paul E. McKenney" To: Frederic Weisbecker Cc: LKML , Peter Zijlstra , Phil Auld , Alex Belits , Nicolas Saenz Julienne , Marco Elver , Xiongfeng Wang , Neeraj Upadhyay , Thomas Gleixner , Nicolas Saenz Julienne , Max Filippov , Yu Liao , Boqun Feng , Marcelo Tosatti , kernel test robot , Paul Gortmaker , Uladzislau Rezki , Joel Fernandes Subject: Re: [PATCH 00/20] rcu/context-tracking: Merge RCU eqs-dynticks counter to context tracking v5 Message-ID: <20220630001007.GP1790663@paulmck-ThinkPad-P17-Gen-1> Reply-To: paulmck@kernel.org References: <20220628131619.2109651-1-frederic@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220628131619.2109651-1-frederic@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 28, 2022 at 03:15:59PM +0200, Frederic Weisbecker wrote: > This is the same as rcu:ctxt.2022.06.21a (no rebase) with minimal changes > on the following patches: > > * [06/20] fix missing function renames on xtensa (thanks Max Filippov, SOB added) > * [09/20] fix missing Kconfig renames on xtensa (thanks Max Filippov, SOB added) > and also on loongarch. > * [18/20] remove unecessary and buggy notrace from rcu_preempt_deferred_qs(). It's called > after intrumentation_begin() in EQS functions. > > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git > rcu/ctxt.2022.06.27 > > HEAD: cb0045adde39bba5ffc620a184b1685a869569d8 Thank you! I have pulled this into -rcu as branch ctxt.2022.06.29a. If testing goes well, I will re-merge it into branch "dev". The diffs from the earlier version are indeed small, as promised. I did reword the authorship of 06/20 and 09/20 because this looked to me to be feedback rather than authorship. I credited Max like this: [ frederic: Apply Max Filippov feedback. ] If you feel strongly about Max having authorship, please set this up using the Co-developed-by rules shown in submitting-patches.rst and send me an update. Thanx, Paul > Thanks, > Frederic > --- > > Frederic Weisbecker (19): > context_tracking: Remove unused context_tracking_in_user() > 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 > MAINTAINERS: Add Paul as context tracking maintainer > > Paul E. McKenney (1): > context_tracking: Use arch_atomic_read() in __ct_state for KASAN > > > .../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/loongarch/Kconfig | 2 +- > 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 +- > arch/xtensa/Kconfig | 2 +- > arch/xtensa/kernel/entry.S | 8 +- > 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 | 113 +++- > 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/cfi.c | 4 +- > kernel/context_tracking.c | 617 +++++++++++++++++++-- > 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 +- > 60 files changed, 934 insertions(+), 764 deletions(-)