From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753319Ab2LJPTs (ORCPT ); Mon, 10 Dec 2012 10:19:48 -0500 Received: from e9.ny.us.ibm.com ([32.97.182.139]:47286 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752173Ab2LJPTr (ORCPT ); Mon, 10 Dec 2012 10:19:47 -0500 Date: Mon, 10 Dec 2012 07:19:34 -0800 From: "Paul E. McKenney" To: Ingo Molnar Cc: Linus Torvalds , Andrew Morton , mingo@elte.hu, fweisbec@gmail.com, rostedt@goodmis.org, linux-kernel@vger.kernel.org Subject: Re: [context tracking subsystem] Re: [GIT PULL rcu/next] One more RCU commit for 3.8 Message-ID: <20121210151934.GS2516@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20121204130503.GA13878@linux.vnet.ibm.com> <20121208143757.GB12011@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121208143757.GB12011@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12121015-7182-0000-0000-000003A9F243 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Dec 08, 2012 at 03:37:57PM +0100, Ingo Molnar wrote: > > * Paul E. McKenney wrote: > > > Hello, Ingo, > > > > Could you please pull one more commit? This is an update to Frederic > > Weisbecker's context-tracking subsystem that is another stepping stone > > towards adaptive-idle and tickless userspace execution. This has been > > subjected to -next testing. It does give two checkpatch.pl errors, > > but these are on cpp macro definitions used within assembly code -- and > > following checkpatch.pl's suggestions would result in assembler errors. > > (I have reported this to Andy Whitcroft, checkpatch.pl's maintainer.) > > > > These changes are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next > > > > Thanx, Paul > > > > ----------------> > > Frederic Weisbecker (1): > > context_tracking: New context tracking susbsystem > > > > arch/Kconfig | 15 ++-- > > arch/x86/Kconfig | 2 +- > > arch/x86/include/asm/{rcu.h => context_tracking.h} | 15 ++-- > > arch/x86/kernel/entry_64.S | 2 +- > > arch/x86/kernel/ptrace.c | 8 +- > > arch/x86/kernel/signal.c | 5 +- > > arch/x86/kernel/traps.c | 2 +- > > arch/x86/mm/fault.c | 2 +- > > include/linux/context_tracking.h | 18 ++++ > > include/linux/rcupdate.h | 2 - > > init/Kconfig | 28 ++++---- > > kernel/Makefile | 1 + > > kernel/context_tracking.c | 83 ++++++++++++++++++++ > > kernel/rcutree.c | 64 +--------------- > > kernel/sched/core.c | 11 ++- > > 15 files changed, 150 insertions(+), 108 deletions(-) > > rename arch/x86/include/asm/{rcu.h => context_tracking.h} (63%) > > create mode 100644 include/linux/context_tracking.h > > create mode 100644 kernel/context_tracking.c > > Pulled it and pushed it out earlier this week. > > One issue I wanted to raise on a bit wider forum was the > introduction of the (small) kernel/context_tracking.c subsystem. > > It makes sense to me, but I've Cc:-ed Linus and Andrew, in case > they have a different opinion. And it does appear that Frederic and I have a bit more explaining to do. ;-) Thanx, Paul