Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934317AbXHMOKm (ORCPT ); Mon, 13 Aug 2007 10:10:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S940257AbXHMLLd (ORCPT ); Mon, 13 Aug 2007 07:11:33 -0400 Received: from mx1.redhat.com ([66.187.233.31]:43120 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752719AbXHMLL3 (ORCPT ); Mon, 13 Aug 2007 07:11:29 -0400 Date: Mon, 13 Aug 2007 07:11:18 -0400 From: Chris Snook To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Linus Torvalds Cc: akpm@linux-foundation.org, paulmck@linux.vnet.ibm.com, Segher Boessenkool , "Luck, Tony" , Chris Friesen , "Robert P. J. Day" Subject: [PATCH 4/23] make atomic_read() and atomic_set() behavior consistent on avr32 Message-ID: <20070813111118.GD24018@shell.boston.redhat.com> References: <46C03885.7000109@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46C03885.7000109@redhat.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1076 Lines: 35 From: Chris Snook Use volatile consistently in atomic.h on avr32. Signed-off-by: Chris Snook --- linux-2.6.23-rc3-orig/include/asm-avr32/atomic.h 2007-08-13 03:14:13.000000000 -0400 +++ linux-2.6.23-rc3/include/asm-avr32/atomic.h 2007-08-13 04:48:25.000000000 -0400 @@ -16,11 +16,18 @@ #include -typedef struct { volatile int counter; } atomic_t; +typedef struct { int counter; } atomic_t; #define ATOMIC_INIT(i) { (i) } -#define atomic_read(v) ((v)->counter) -#define atomic_set(v, i) (((v)->counter) = i) +static inline int atomic_read(atomic_t *v) +{ + return *(volatile int *)&v->counter; +} + +static inline void atomic_set(atomic_t *v, int i) +{ + *(volatile int *)&v->counter = i; +} /* * atomic_sub_return - subtract the atomic variable - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/