From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 21 Jul 2002 18:48:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 21 Jul 2002 18:48:49 -0400 Received: from caramon.arm.linux.org.uk ([212.18.232.186]:53515 "EHLO caramon.arm.linux.org.uk") by vger.kernel.org with ESMTP id ; Sun, 21 Jul 2002 18:48:49 -0400 Date: Sun, 21 Jul 2002 23:51:54 +0100 From: Russell King To: linux-kernel@vger.kernel.org Subject: [PATCH] Alan says this needs fixing... (timer/cpu_relax) Message-ID: <20020721235154.M26376@flint.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org While looking at some stuff, I noticed the following. Alan confirmed that this patch is probably a good idea... --- orig/kernel/timer.c Sun Jul 7 23:21:28 2002 +++ linux/kernel/timer.c Sun Jul 21 23:50:17 2002 @@ -176,7 +176,7 @@ #define timer_enter(t) do { running_timer = t; mb(); } while (0) #define timer_exit() do { running_timer = NULL; } while (0) #define timer_is_running(t) (running_timer == t) -#define timer_synchronize(t) while (timer_is_running(t)) barrier() +#define timer_synchronize(t) while (timer_is_running(t)) cpu_relax() #else #define timer_enter(t) do { } while (0) #define timer_exit() do { } while (0) -- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html