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=-5.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 02245C433E6 for ; Mon, 31 Aug 2020 18:00:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D18EF20866 for ; Mon, 31 Aug 2020 18:00:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598896855; bh=sV61BZWqOqN6aZ1wNPfxW+MMj9m6m9nEYuRPT0u4TvQ=; h=Date:From:To:Cc:Subject:Reply-To:List-ID:From; b=i4/FqdVNeF2I4wiOfMiA23HkedUDOr9zgpij+KesJ/clpEgSYxntGVvKXKk29fLil L4r76/HxU62hLz8ztAjPjWVRTVuXcynz/f23+guW2d5i0rF5YRHplBgJ4CQeO4UHI+ CvDI5CSCloxxQBS/X0QIPWgMFIFVyF36sEqPHqxQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728257AbgHaSAy (ORCPT ); Mon, 31 Aug 2020 14:00:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:34480 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725993AbgHaSAu (ORCPT ); Mon, 31 Aug 2020 14:00:50 -0400 Received: from paulmck-ThinkPad-P72.home (unknown [50.45.173.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6C29E2083E; Mon, 31 Aug 2020 18:00:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598896850; bh=sV61BZWqOqN6aZ1wNPfxW+MMj9m6m9nEYuRPT0u4TvQ=; h=Date:From:To:Cc:Subject:Reply-To:From; b=mdpMwZgy8Kjbo0P5ODYcw/hYKgn9Tl/rCHYW00XhElZMDkgP4bSAs7K88+plPFF0C PGKzi0ReUQIcLbUGLfflDB9RrlDRTb7aGv+ezg975mkeFIolSQpE0+q/EQYgF3ldsc nv1f/HvvB9tv/HTxUqU0EavDM+0zGLzEgoUoCsVE= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 4534735230F1; Mon, 31 Aug 2020 11:00:50 -0700 (PDT) Date: Mon, 31 Aug 2020 11:00:50 -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, dipankar@in.ibm.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 0/24] Miscellaneous fixes for v5.10 Message-ID: <20200831180050.GA32590@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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series provides miscellaneous fixes: 1. Remove KCSAN stubs from tree.c. 2. Remove KCSAN stubs from update.c. 3. Remove KCSAN stubs from srcutree.c. 4. Initialize at declaration time in rcu_exp_handler(). 5. rcu/trace: Print negative GP numbers correctly. 6. rcu/trace: Use gp_seq_req in acceleration's rcu_grace_period tracepoint. 7. Clarify RCU nocb CPU error message. 8. rcu/tree: Force quiescent state on callback overload. 9. rcu/tree: Remove CONFIG_PREMPT_RCU check in force_qs_rnp(). 10. Remove show_rcu_nocb_state() false positive printout. 11. Add READ_ONCE() to rcu_do_batch() access to rcu_divisor. 12. Add READ_ONCE() to rcu_do_batch() access to rcu_resched_ns. 13. Add READ_ONCE() to rcu_do_batch() access to rcu_kick_kthreads. 14. Add READ_ONCE() to rcu_do_batch() access to rcu_cpu_stall_ftrace_dump. 15. Fix kerneldoc comments in rcupdate.h. 16. Introduce list/hlist_for_each_entry_srcu() macros. 17. mmu: page_track: Fix RCU list API usage. 18. Move rcu_cpu_started per-CPU variable to rcu_data. 19. rcu/nocb: Add a warning for non-GP kthread running GP code. 20. Clarify comments about FQS loop reporting quiescent states. 21. Make FQS more aggressive in complaining about offline CPUs. 22. Remove unused __rcu_is_watching() function. 23. rcu/segcblist: Prevent useless GP start if no CBs to accelerate. 24. Shrink each possible cpu krcp. Thanx, Paul ------------------------------------------------------------------------ arch/x86/kvm/mmu/page_track.c | 6 +- include/linux/rculist.h | 48 +++++++++++++++++++++ include/linux/rcupdate.h | 12 ++--- include/linux/rcutiny.h | 1 include/linux/rcutree.h | 1 include/trace/events/rcu.h | 54 ++++++++++++------------ kernel/entry/common.c | 2 kernel/rcu/rcu_segcblist.c | 10 ++++ kernel/rcu/srcutree.c | 13 ----- kernel/rcu/tree.c | 92 +++++++++++++++++++++--------------------- kernel/rcu/tree.h | 1 kernel/rcu/tree_exp.h | 6 -- kernel/rcu/tree_plugin.h | 8 +-- kernel/rcu/tree_stall.h | 8 +-- kernel/rcu/update.c | 13 ----- 15 files changed, 154 insertions(+), 121 deletions(-)