Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753892AbbLFC0t (ORCPT ); Sat, 5 Dec 2015 21:26:49 -0500 Received: from e31.co.us.ibm.com ([32.97.110.149]:56833 "EHLO e31.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753805AbbLFC0g (ORCPT ); Sat, 5 Dec 2015 21:26:36 -0500 X-IBM-Helo: d03dlp03.boulder.ibm.com X-IBM-MailFrom: paulmck@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Date: Sat, 5 Dec 2015 18:27:18 -0800 From: "Paul E. McKenney" To: Josh Triplett 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 0/10] Expedited-grace-period changes for 4.5 Message-ID: <20151206022718.GO28602@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20151204235851.GA23937@linux.vnet.ibm.com> <20151205010642.GE27128@cloud> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151205010642.GE27128@cloud> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15120602-8236-0000-0000-0000141DAE1E Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1764 Lines: 45 On Fri, Dec 04, 2015 at 05:06:42PM -0800, Josh Triplett wrote: > On Fri, Dec 04, 2015 at 03:58:51PM -0800, Paul E. McKenney wrote: > > Hello! > > > > This series contains follow-on cleanup changes to RCU's expedited > > grace-period functionality. The patches in this series are as follows: > > > > 1. Short-circuit synchronize_sched_expedited() if there is only one CPU. > > > > 2. Update comment to clarify the role of ->expmaskinitnext. > > > > 3. Separate concerns by moving smp_mb() from rcu_seq_snap() to > > rcu_exp_gp_seq_snap(). > > > > 4. Safe a few lines of code by inverting the sense of > > sync_rcu_exp_select_cpus() "if" statement. > > > > 5. Reduce expedited GP memory contention via per-CPU variables. > > > > 6. Get rid of (some) empty stall-warning messages by resolving > > stall-warning ties. > > > > 7. Add more diagnostics to expedited stall warning messages. > > > > 8. Add rcu_normal kernel parameter to suppress expediting for > > the benefit of aggressive real-time systems. > > > > 9-10. Allow expedited grace periods to be disabled just before init > > is spawned, allowing them to speed up boot without interfering > > with run-time real-time workloads. > > This cover letter doesn't seem to match the patch series that shows up > as replies to it. The patch series has 13 patches, numbered 01/13 to > 13/13. You sent a separate cover letter, not part of this thread, that > seems to match up. Indeed, not one of my better patch submissions. :-/ Thanx, Paul -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/