From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: - add-cmpxchg_local-cmpxchg64-and-cmpxchg64_local-to-ia64.patch removed from -mm tree Date: Fri, 08 Feb 2008 00:08:56 -0800 Message-ID: <200802080808.m1888bSh014665@imap1.linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from smtp2.linux-foundation.org ([207.189.120.14]:46902 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932268AbYBHIUy (ORCPT ); Fri, 8 Feb 2008 03:20:54 -0500 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: mathieu.desnoyers@polymtl.ca, clameter@sgi.com, kaos@ocs.com.au, tony.luck@intel.com, mm-commits@vger.kernel.org The patch titled Add cmpxchg_local, cmpxchg64 and cmpxchg64_local to ia64 has been removed from the -mm tree. Its filename was add-cmpxchg_local-cmpxchg64-and-cmpxchg64_local-to-ia64.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: Add cmpxchg_local, cmpxchg64 and cmpxchg64_local to ia64 From: Mathieu Desnoyers Add the primitives cmpxchg_local, cmpxchg64 and cmpxchg64_local to ia64. They use cmpxchg_acq as underlying macro, just like the already existing ia64 cmpxchg(). Changelog: ia64 cmpxchg_local coding style fix Quoting Keith Owens: As a matter of coding style, I prefer #define cmpxchg_local cmpxchg #define cmpxchg64_local cmpxchg64 Which makes it absolutely clear that they are the same code. With your patch, humans have to do a string compare of two defines to see if they are the same. Note cmpxchg is *not* a performance win vs interrupt disable / enable on IA64. Signed-off-by: Mathieu Desnoyers Acked-by: Christoph Lameter Cc: "Luck, Tony" Cc: Keith Owens Signed-off-by: Andrew Morton --- include/asm-ia64/intrinsics.h | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff -puN include/asm-ia64/intrinsics.h~add-cmpxchg_local-cmpxchg64-and-cmpxchg64_local-to-ia64 include/asm-ia64/intrinsics.h --- a/include/asm-ia64/intrinsics.h~add-cmpxchg_local-cmpxchg64-and-cmpxchg64_local-to-ia64 +++ a/include/asm-ia64/intrinsics.h @@ -153,11 +153,17 @@ extern long ia64_cmpxchg_called_with_bad (__typeof__(old)) _r_; \ }) -#define cmpxchg_acq(ptr,o,n) ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr))) -#define cmpxchg_rel(ptr,o,n) ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr))) +#define cmpxchg_acq(ptr, o, n) \ + ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr))) +#define cmpxchg_rel(ptr, o, n) \ + ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr))) /* for compatibility with other platforms: */ -#define cmpxchg(ptr,o,n) cmpxchg_acq(ptr,o,n) +#define cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n)) +#define cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n)) + +#define cmpxchg_local cmpxchg +#define cmpxchg64_local cmpxchg64 #ifdef CONFIG_IA64_DEBUG_CMPXCHG # define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128; _ Patches currently in -mm which might be from mathieu.desnoyers@polymtl.ca are origin.patch modules-handle-symbols-that-have-a-zero-value.patch modules-handle-symbols-that-have-a-zero-value-fix.patch linux-kernel-markers-support-multiple-probes.patch linux-kernel-markers-support-multiple-probes-update.patch linux-kernel-markers-create-modpost-file.patch