From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757549AbZKNDui (ORCPT ); Fri, 13 Nov 2009 22:50:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757329AbZKNDug (ORCPT ); Fri, 13 Nov 2009 22:50:36 -0500 Received: from e8.ny.us.ibm.com ([32.97.182.138]:47650 "EHLO e8.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757319AbZKNDuf (ORCPT ); Fri, 13 Nov 2009 22:50:35 -0500 Date: Fri, 13 Nov 2009 19:51:00 -0800 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@polymtl.ca, josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com Subject: [PATCH tip/core/rcu 0/2] rcu: lastcomp cleanups, fix rcu_pending() false positives Message-ID: <20091114035100.GA9599@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/1.5.15+20070412 (2007-04-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These two patches are yet more from the ongoing cleanup/inspection session for RCU. 1. Get the (hopefully) last of the accesses to the ->completed fields cleaned up. 2. Fix a race in __rcu_pending() accesses to ->gpnum and ->completed fields that could cause needless (but otherwise harmless) raising of RCU_SOFTIRQ.