From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756723AbYKNXD3 (ORCPT ); Fri, 14 Nov 2008 18:03:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753812AbYKNXAZ (ORCPT ); Fri, 14 Nov 2008 18:00:25 -0500 Received: from smtp.polymtl.ca ([132.207.4.11]:52202 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752060AbYKNXAV (ORCPT ); Fri, 14 Nov 2008 18:00:21 -0500 Message-Id: <20081114224947.336246671@polymtl.ca> References: <20081114224733.364965865@polymtl.ca> User-Agent: quilt/0.46-1 Date: Fri, 14 Nov 2008 17:47:34 -0500 From: Mathieu Desnoyers To: Ingo Molnar , linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, Linus Torvalds , Mathieu Desnoyers , Peter Zijlstra , Paul E McKenney Subject: [patch 01/16] RCU read sched notrace Content-Disposition: inline; filename=rcu-read-sched-notrace.patch X-Poly-FromMTA: (test.casi.polymtl.ca [132.207.72.60]) at Fri, 14 Nov 2008 23:00:00 +0000 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add _notrace version to rcu_read_*_sched(). Impact: new API, useful for tracepoints and markers. Signed-off-by: Mathieu Desnoyers CC: Peter Zijlstra CC: Paul E McKenney CC: 'Ingo Molnar' CC: akpm@linux-foundation.org --- include/linux/rcupdate.h | 2 ++ 1 file changed, 2 insertions(+) Index: linux-2.6-lttng/include/linux/rcupdate.h =================================================================== --- linux-2.6-lttng.orig/include/linux/rcupdate.h 2008-10-08 10:27:57.000000000 -0400 +++ linux-2.6-lttng/include/linux/rcupdate.h 2008-10-08 10:40:48.000000000 -0400 @@ -142,6 +142,7 @@ struct rcu_head { * on the write-side to insure proper synchronization. */ #define rcu_read_lock_sched() preempt_disable() +#define rcu_read_lock_sched_notrace() preempt_disable_notrace() /* * rcu_read_unlock_sched - marks the end of a RCU-classic critical section @@ -149,6 +150,7 @@ struct rcu_head { * See rcu_read_lock_sched for more information. */ #define rcu_read_unlock_sched() preempt_enable() +#define rcu_read_unlock_sched_notrace() preempt_enable_notrace() -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68