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=-2.6 required=3.0 tests=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 18A39C433DF for ; Tue, 23 Jun 2020 00:21:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DEE8F20720 for ; Tue, 23 Jun 2020 00:21:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592871690; bh=iX6NQF4MW+6RZ8g2rca1Xu6wtzcfoz4qRxSdPz0uTFM=; h=Date:From:To:Cc:Subject:Reply-To:List-ID:From; b=BFiniL6jRGcnAHMzmUeyoU23cYguQy1XhKYy4RNkOAN7Yw7xfWiNObzeukOEwPAcR PgqhuNFEM2aJ5w0z0RgaIlxsFRTJq/HET0Z7gPKNfs+7zVPd3XhzLJ62Dxj7/36E+q JA1RoZuCm+euBZknu1ikkoiZ8zB93RkenyMGRB9U= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730497AbgFWAVa (ORCPT ); Mon, 22 Jun 2020 20:21:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:47682 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730421AbgFWAVa (ORCPT ); Mon, 22 Jun 2020 20:21:30 -0400 Received: from paulmck-ThinkPad-P72.home (50-39-105-78.bvtn.or.frontiernet.net [50.39.105.78]) (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 B730C20702; Tue, 23 Jun 2020 00:21:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592871688; bh=iX6NQF4MW+6RZ8g2rca1Xu6wtzcfoz4qRxSdPz0uTFM=; h=Date:From:To:Cc:Subject:Reply-To:From; b=NJOSd1S5iE1b/7I5b5uUuJBgFvt+J/9IHrm8JjXxyNFgcmOgjf1TksP3kPpm8mcf2 oITYZCsGh3y0WANDyZDn7DUqrelJVDJdWG7oMT34zf7xply2V4DQ7TqU3/Yf9OojdW ScI3TT7wmDmwb+A3PbUHKFlY6hcP6TIEFmtOfUf8= Received: by paulmck-ThinkPad-P72.home (Postfix, from userid 1000) id 9BB9C352306A; Mon, 22 Jun 2020 17:21:28 -0700 (PDT) Date: Mon, 22 Jun 2020 17:21:28 -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 0/26] Miscellaneous fixes for v5.9 Message-ID: <20200623002128.GA25456@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: rcu-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Hello! This series provides miscellaneous fixes: 1. Initialize and destroy rcu_synchronize only when necessary, courtesy of Wei Yang. 2. mm/mmap.c: Add cond_resched() for exit_mmap() CPU stalls. 3. Simplify the calculation of rcu_state.ncpus, courtesy of Wei Yang. 4. Add callbacks-invoked counters. 5. Add comment documenting rcu_callback_map's purpose. 6. events: rcu: Change description of rcu_dyntick trace event, courtesy of Madhuparna Bhowmik. 7. Grace-period-kthread related sleeps to idle priority. 8. Priority-boost-related sleeps to idle priority. 9. No-CBs-related sleeps to idle priority. 10. Expedited grace-period sleeps to idle priority. 11. fs/btrfs: Add cond_resched() for try_release_extent_mapping() stalls. 12. Update comment from rsp->rcu_gp_seq to rsp->gp_seq, courtesy of Lihao Liang. 13. tick/nohz: Narrow down noise while setting current task's tick dependency, courtesy of Frederic Weisbecker. 14. Fix some kernel-doc warnings, courtesy of Mauro Carvalho Chehab. 15. Remove initialized but unused rnp from check_slow_task(). 16. Mark rcu_nmi_enter() call to rcu_cleanup_after_idle() noinstr. 17. Complain only once about RCU in extended quiescent state. 18. Replace 1 with true, courtesy of Jules Irenge. 19. Stop shrinker loop, courtesy of Peter Enderborg. 20. gp_max is protected by root rcu_node's lock, courtesy of Wei Yang. 21. grplo/grphi just records CPU number, courtesy of Wei Yang. 22. grpnum just records group number, courtesy of Wei Yang. 23. kernel/rcu/tree.c: Fix kernel-doc warnings, courtesy of Randy Dunlap. 24. Fix some kernel-doc warnings, courtesy of Mauro Carvalho Chehab. 25. Remove KCSAN stubs. 26. Remove KCSAN stubs from update.c. Thanx, Paul ------------------------------------------------------------------------ fs/btrfs/extent_io.c | 2 ++ include/linux/rculist.h | 2 +- include/trace/events/rcu.h | 11 ++++++----- kernel/locking/lockdep.c | 4 +--- kernel/rcu/tree.c | 39 +++++++++++++-------------------------- kernel/rcu/tree.h | 15 ++++++++------- kernel/rcu/tree_exp.h | 2 +- kernel/rcu/tree_plugin.h | 4 ++-- kernel/rcu/tree_stall.h | 5 +++-- kernel/rcu/update.c | 28 +++++++++------------------- kernel/time/tick-sched.c | 22 +++++++++++++++------- mm/mmap.c | 1 + 12 files changed, 62 insertions(+), 73 deletions(-)