From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964911Ab2J3QzI (ORCPT ); Tue, 30 Oct 2012 12:55:08 -0400 Received: from e32.co.us.ibm.com ([32.97.110.150]:43253 "EHLO e32.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934021Ab2J3QzA (ORCPT ); Tue, 30 Oct 2012 12:55:00 -0400 Date: Tue, 30 Oct 2012 09:54:15 -0700 From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, edumazet@google.com, darren@dvhart.com, fweisbec@gmail.com, sbw@mit.edu, patches@linaro.org Subject: [PATCH tip/core/rcu 0/7] CPU hotplug changes for 3.8 Message-ID: <20121030165415.GA25438@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12103016-5406-0000-0000-0000018E71F7 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! This patch series provides further updates to RCU's interaction with CPU hotplug. The individual patches are as follows: 1. Fix an obsolete comment describing ->onofflock. 2. Make rcutorture print the errno from cpu_down() failure if the "verbose" module parameter is specified. 3. Make _cpu_down() use stop_cpus() instead of __stop_machine(). 4. Rename ->onofflock to ->orphan_lock to correctly indicate this lock's current scope. 5. Avoid counter wrap in synchronize_sched_expedited(). 6. Move synchronize_sched_expedited() from global variables to the rcu_state structure. 7. Instrument synchronize_rcu_expedited() for debugfs tracing. Thanx, Paul b/kernel/cpu.c | 9 ++- b/kernel/rcutorture.c | 9 +++ b/kernel/rcutree.c | 4 - b/kernel/rcutree.h | 7 +- b/kernel/rcutree_plugin.h | 3 - kernel/rcutree.c | 112 ++++++++++++++++++++++++++++++---------------- kernel/rcutree.h | 12 ++++ 7 files changed, 108 insertions(+), 48 deletions(-)