From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751341AbdAPIKE (ORCPT ); Mon, 16 Jan 2017 03:10:04 -0500 Received: from relay6-d.mail.gandi.net ([217.70.183.198]:35540 "EHLO relay6-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751288AbdAPIKB (ORCPT ); Mon, 16 Jan 2017 03:10:01 -0500 X-Originating-IP: 50.39.169.170 Date: Mon, 16 Jan 2017 00:09:20 -0800 From: Josh Triplett To: "Paul E. McKenney" Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com, bobby.prani@gmail.com Subject: Re: [PATCH tip/core/rcu 0/20] Miscellaneous fixes for 4.11 Message-ID: <20170116080917.dr3fqaxt7kexo7f6@x> References: <20170114091255.GA20854@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170114091255.GA20854@linux.vnet.ibm.com> User-Agent: NeoMutt/20161126 (1.7.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 14, 2017 at 01:12:55AM -0800, Paul E. McKenney wrote: > Hello! > > This series provides miscellaneous fixes: > > 1. Make RCU_EXPEDITE_BOOT be the default in order to speed up > boot, courtesy of Sebastian Andrzej Siewior. > > 2. Make RCU suspicious-access lockdep splats use pr_err(). > > 3. Disable sys_membarrier when nohz_full is enabled, courtesy > of Mathieu Desnoyers. > > 4. Only dump stalled-tasks stacks if there was a real stall, courtesy > of Byungchul Park. > > 5. Remove unneeded rcu_process_callbacks() declarations. > > 6. Remove unused but set "mask" variable, courtesy of Tobias Klauser. > > 7. Remove short-term CPU kicking. > > 8. Add long-term CPU kicking. > > 9. Once again use NMI-based stack traces in stall warnings. > > 10. Add functions to test for trivial grace periods. > > 11. Make cond_resched() provide RCU quiescent state, which will > hopefully lead to the removal of cond_resched_rcu_qs(). > > 12. Re-enable TASKS_RCU for User Mode Linux. > > 13. Don't wake rcuc/X kthreads on NOCB CPUs. > > 14. Add comment headers to expedited-grace-period counter functions. > > 15. Make rcu_cpu_starting() use its "cpu" argument. > > 16. Enable RCU tracepoints by default to aid in debugging, courtesy > of Matt Fleming. > > 17. Fix comment in rcu_organize_nocb_kthreads(), which no longer > spawns kthreads. > > 18. Clarify comments about when llist locking is needed, courtesy > of Joel Fernandes. > > 19. Eliminate unused expedited_normal counter. > > 20. Add lockdep checks to synchronous expedited primitives. I replied to patches 2, 8, 10, and 11 with comments. For the rest: Reviewed-by: Josh Triplett