From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761220AbXJaWoV (ORCPT ); Wed, 31 Oct 2007 18:44:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759553AbXJaWmZ (ORCPT ); Wed, 31 Oct 2007 18:42:25 -0400 Received: from smtp.polymtl.ca ([132.207.4.11]:51381 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758364AbXJaWmX (ORCPT ); Wed, 31 Oct 2007 18:42:23 -0400 Message-Id: <20071031224211.514698475@polymtl.ca> References: <20071031223710.099558229@polymtl.ca> User-Agent: quilt/0.46-1 Date: Wed, 31 Oct 2007 18:37:14 -0400 From: Mathieu Desnoyers To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org Cc: Mathieu Desnoyers , ralf@linux-mips.org Subject: [patch 04/28] Add cmpxchg64 and cmpxchg64_local to mips Content-Disposition: inline; filename=add-cmpxchg64-to-mips.patch X-Poly-FromMTA: (dijkstra.casi.polymtl.ca [132.207.72.10]) at Wed, 31 Oct 2007 22:42:11 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Make sure that at least cmpxchg64_local is available on all architectures to use for unsigned long long values. Signed-off-by: Mathieu Desnoyers CC: ralf@linux-mips.org CC linux-mips@linux-mips.org --- include/asm-mips/cmpxchg.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) Index: linux-2.6-lttng/include/asm-mips/cmpxchg.h =================================================================== --- linux-2.6-lttng.orig/include/asm-mips/cmpxchg.h 2007-10-31 17:32:44.000000000 -0400 +++ linux-2.6-lttng/include/asm-mips/cmpxchg.h 2007-10-31 17:54:49.000000000 -0400 @@ -104,4 +104,21 @@ extern void __cmpxchg_called_with_bad_po #define cmpxchg(ptr, old, new) __cmpxchg(ptr, old, new, smp_llsc_mb()) #define cmpxchg_local(ptr, old, new) __cmpxchg(ptr, old, new, ) +#define cmpxchg64(ptr, o, n) \ + ({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg((ptr), (o), (n)); \ + }) + +#ifdef CONFIG_64BIT +#define cmpxchg64_local(ptr, o, n) \ + ({ \ + BUILD_BUG_ON(sizeof(*(ptr)) != 8); \ + cmpxchg_local((ptr), (o), (n)); \ + }) +#else +#include +#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) +#endif + #endif /* __ASM_CMPXCHG_H */ -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68