Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964861AbbBITnL (ORCPT ); Mon, 9 Feb 2015 14:43:11 -0500 Received: from e39.co.us.ibm.com ([32.97.110.160]:44885 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933673AbbBITnJ (ORCPT ); Mon, 9 Feb 2015 14:43:09 -0500 Date: Mon, 9 Feb 2015 11:43:03 -0800 From: "Paul E. McKenney" To: Ingo Molnar Cc: David Hildenbrand , linux-kernel@vger.kernel.org, Christian Ehrhardt , Heiko Carstens Subject: Re: [GIT PULL rcu/next] RCU commits for 3.20 Message-ID: <20150209194303.GR5418@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20150120004502.GA14517@linux.vnet.ibm.com> <20150121051514.GA12032@gmail.com> <20150203153445.296bc07f@thinkpad-w530> <20150203163435.GT19109@linux.vnet.ibm.com> <20150206182823.GA27130@gmail.com> <20150206185641.GG5418@linux.vnet.ibm.com> <20150209075610.GC31474@gmail.com> <20150209135044.GM5418@linux.vnet.ibm.com> <20150209174536.GA14121@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150209174536.GA14121@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15020919-0033-0000-0000-0000039AA93E Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5115 Lines: 112 On Mon, Feb 09, 2015 at 06:45:36PM +0100, Ingo Molnar wrote: > > * Paul E. McKenney wrote: > > > On Mon, Feb 09, 2015 at 08:56:10AM +0100, Ingo Molnar wrote: > > > > > > * Paul E. McKenney wrote: > > > > > > > On Fri, Feb 06, 2015 at 07:28:23PM +0100, Ingo Molnar wrote: > > > > > > > > > > * Paul E. McKenney wrote: > > > > > > > > > > > On Tue, Feb 03, 2015 at 03:34:45PM +0100, David Hildenbrand wrote: > > > > > > > > > > > > > > > > * Paul E. McKenney wrote: > > > > > > > > > > > > > > > > > Hello, Ingo, > > > > > > > > > > > > > > > > > > The changes in this series include: > > > > > > > > > > > > > > > > > > 1. Documentation updates. These were posted to LKML at > > > > > > > > > https://lkml.org/lkml/2015/1/7/496. > > > > > > > > > > > > > > > > > > 2. Miscellaneous fixes. These were posted to LKML at > > > > > > > > > https://lkml.org/lkml/2015/1/7/507. > > > > > > > > > > > > > > > > > > 3. Preemptible-RCU fixes, including fixing an old bug in the > > > > > > > > > interaction of RCU priority boosting and CPU hotplug. These were > > > > > > > > > posted to LKML at https://lkml.org/lkml/2015/1/7/535. > > > > > > > > > > > > > > > > > > 4. SRCU updates. These were posted to LKML at > > > > > > > > > https://lkml.org/lkml/2015/1/7/555. > > > > > > > > > > > > > > > > > > 5. RCU CPU stall-warning updates. These were posted to LKML at > > > > > > > > > https://lkml.org/lkml/2015/1/7/565. > > > > > > > > > > > > > > > > > > 6. RCU torture-test updates. These were posted to LKML at > > > > > > > > > https://lkml.org/lkml/2015/1/7/591. > > > > > > > > > > > > > > > > > > These changes are available in the git repository at: > > > > > > > > > > > > > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo > > > > > > > > > > > > > > > > > > for you to fetch changes up to 78e691f4ae2d5edea0199ca802bb505b9cdced88: > > > > > > > > > > > > > > > > > > Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD (2015-01-15 23:34:34 -0800) > > > > > > > > > > > > > > > > > > ---------------------------------------------------------------- > > > > > > > > > > > > > > > > > > Alexander Gordeev (1): > > > > > > > > > rcu: Remove redundant rcu_is_cpu_rrupt_from_idle() from tiny RCU > > > > > > > > > > > > > > > > > > Calvin Owens (1): > > > > > > > > > ksoftirqd: Enable IRQs and call cond_resched() before poking RCU > > > > > > > > > > > > > > > > > > David Hildenbrand (1): > > > > > > > > > hotplugcpu: Avoid deadlocks by waking active_writer > > > > > > > > > > > > > > > > > > > > > > > Hi Ingo, Paul, > > > > > > > > > > > > > > Heiko/Christian seem to have hit the bug (hotplugcpu: Avoid deadlocks by waking > > > > > > > active_writer addresses) in 3.18-rc3. > > > > > > > > > > > > > > And as commit b2c4623dcd07 was in linux starting with 3.18-rc3, we should > > > > > > > probably (have done a) cc-stable. > > > > > > > > > > > > Good point, though appropriate RCU changes seem to make their > > > > > > way to -stable without explicit CCs. Maybe I should be doing > > > > > > them, but doing so in the past has normally gotten me > > > > > > complaints from the -stable maintainers. > > > > > > > > > > > > Ingo, how would you like me to be handling this in the future? > > > > > > > > > > So if you put a Cc: stable tag into the commit then usually they > > > > > get picked up automatically. > > > > > > > > > > Just make sure you don't Cc: the stable team on patch > > > > > submissions (which might or might not make it into > > > > > Linus's tree), that's what will get complaints. > > > > > > > > > > Does that work for you? > > > > > > > > I will give it a spin. I thought that adding the "Cc: > > > > stable" tag to the commit log got me complaints when I > > > > later did git-format-patch and git-send-email, but > > > > perhaps I was confused or this has since changed. > > > > > > Yeah, I believe that will get you complaints, so you have > > > to avoid sending those emails to -stable - but there's no > > > restriction on what can be in the Cc: entries of the commit > > > log itself. > > > > OK, so if I understand correctly, I need to add the Cc: > > stable tags after the last > > git-format-patch/git-send-email, but (of course) before > > the git-request-pull. Is that the trick? > > So I'd try to avoid the unnecessary rebase: teach > git-send-email to not Cc: to -stable, even though it's in > the Cc: list? Not sure how that's done though. I couldn't find anything in the documentation, so I sent an email to git@vger.kernel.org pleading for help. ;-) 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/