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 1E619C55178 for ; Thu, 5 Nov 2020 23:08:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF63820719 for ; Thu, 5 Nov 2020 23:08:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604617738; bh=ASQcl6/kvjNQnS00DAk1cDFUuC2e0kZnj1RAWJdVV4k=; h=Date:From:To:Cc:Subject:Reply-To:List-ID:From; b=NdRkcH/zJlJcxNg9AhiuoTqGz+1w4+saI5Z0/+gY5KONZPnK0MZJSTEV2TIn9fu6A v3NB3UpA7IGNK1DvqzXQ4BppSQInwz3fhc5MZyZUqtxbj+cdI5HdOKdlsL4tmQDzT1 WDiegV6POr4UORlXbgHSia/EDxKIbn+pf0cYXnWg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732409AbgKEXI5 (ORCPT ); Thu, 5 Nov 2020 18:08:57 -0500 Received: from mail.kernel.org ([198.145.29.99]:34262 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726801AbgKEXI5 (ORCPT ); Thu, 5 Nov 2020 18:08:57 -0500 Received: from paulmck-ThinkPad-P72.home (50-39-104-11.bvtn.or.frontiernet.net [50.39.104.11]) (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 D6F1420715; Thu, 5 Nov 2020 23:08:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604617736; bh=ASQcl6/kvjNQnS00DAk1cDFUuC2e0kZnj1RAWJdVV4k=; h=Date:From:To:Cc:Subject:Reply-To:From; b=RVw66FG4NSmzSVajDJ3cvCmx4IjJed/I1aKVN5MW0Vvu+LMgIawsPI1p0hRYZa+oh XesIxJgdaCZ16mJhZyTBpqFDCsz702mtTe1fSBdjcMVeR3bPpuo9JtmAcakjg7AzsZ A4krdY6QJmRSU30nXlEoZQwwD1ZUPLHn8Nnn2u9I= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 860313522A76; Thu, 5 Nov 2020 15:08:56 -0800 (PST) Date: Thu, 5 Nov 2020 15:08:56 -0800 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 tip/core/rcu 0/16] Miscellaneous fixes for v5.11 Message-ID: <20201105230856.GA18904@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) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This series contains miscellaneous fixes: 1. Don't invoke try_invoke_on_locked_down_task() with irqs disabled. 2. Move x86's rcu_cpu_starting() earlier. 3. Panic after fixed number of stalls. 4. Update list.h comment to explicitly note circular lists. 5. Implement rcu_segcblist_is_offloaded() config dependent. 6. Fix single-CPU check in rcu_blocking_is_gp(). 7. Clarify nocb kthreads naming in RCU_NOCB_CPU config. 8. Add a warning if CPU being onlined did not report QS already. 9. Make struct kernel_param_ops definitions const. 10. Fix ftrace recursion. 11. nocb: Avoid raising softirq for offloaded ready-to-execute CBs. 12. Prevent lockdep-RCU splats on lock acquisition/release. 13. Fix a typo in rcu_blocking_is_gp() header comment. 14. Do not report strict GPs for outgoing CPUs. 15. Defer kvfree_rcu() allocation to a clean context. 16. Take early exit on memory-allocation failure. Thanx, Paul ------------------------------------------------------------------------ arch/x86/kernel/cpu/mtrr/mtrr.c | 2 arch/x86/kernel/smpboot.c | 1 include/linux/kernel.h | 1 include/linux/list.h | 2 kernel/rcu/Kconfig | 20 ++-- kernel/rcu/rcu_segcblist.h | 2 kernel/rcu/srcutree.c | 4 kernel/rcu/tree.c | 188 +++++++++++++++++++++++++--------------- kernel/rcu/tree.h | 2 kernel/rcu/tree_plugin.h | 2 kernel/rcu/tree_stall.h | 28 ++++- kernel/sysctl.c | 11 ++ 12 files changed, 178 insertions(+), 85 deletions(-)