From: Andi Kleen <ak@suse.de>
To: mathieu.desnoyers@polymtl.ca, andi@firstfloor.org,
patches@x86-64.org, linux-kernel@vger.kernel.org
Subject: [PATCH] [8/11] x86_64: x86_64 - Use non locked version for local_cmpxchg()
Date: Fri, 20 Jul 2007 17:32:52 +0200 (CEST) [thread overview]
Message-ID: <20070720153252.C0AC514E79@wotan.suse.de> (raw)
In-Reply-To: <20070720532.949522000@suse.de>
From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
x86_64 - Use non locked version for local_cmpxchg()
local_cmpxchg() should not use any LOCK prefix. This change probably got lost in
the move to cmpxchg.h.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Christoph Lameter <clameter@sgi.com>
CC: Andi Kleen <andi@firstfloor.org>
---
include/asm-x86_64/cmpxchg.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/include/asm-x86_64/cmpxchg.h
===================================================================
--- linux.orig/include/asm-x86_64/cmpxchg.h
+++ linux/include/asm-x86_64/cmpxchg.h
@@ -128,7 +128,7 @@ static inline unsigned long __cmpxchg_lo
((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
(unsigned long)(n),sizeof(*(ptr))))
#define cmpxchg_local(ptr,o,n)\
- ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
+ ((__typeof__(*(ptr)))__cmpxchg_local((ptr),(unsigned long)(o),\
(unsigned long)(n),sizeof(*(ptr))))
#endif
next prev parent reply other threads:[~2007-07-20 15:36 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-20 15:32 [PATCH] [0/11] Some more x86 patches for review Andi Kleen
2007-07-20 15:32 ` [PATCH] [1/11] i386: Reserve the right performance counter for the Intel PerfMon NMI watchdog Andi Kleen
2007-07-20 15:32 ` [PATCH] [2/11] x86: Fix alternatives and kprobes to remap write-protected kernel text Andi Kleen
2007-07-20 15:59 ` Mathieu Desnoyers
2007-07-23 14:46 ` Mathieu Desnoyers
2007-07-23 15:01 ` Andi Kleen
2007-07-23 15:25 ` Mathieu Desnoyers
2007-07-24 6:06 ` Rusty Russell
2007-07-24 13:57 ` Mathieu Desnoyers
2007-07-24 15:17 ` Jeremy Fitzhardinge
2007-07-24 15:20 ` Mathieu Desnoyers
2007-07-20 15:32 ` [PATCH] [3/11] x86: Stop MCEs and NMIs during code patching Andi Kleen
2007-07-20 15:45 ` Jeremy Fitzhardinge
2007-07-20 16:03 ` Mathieu Desnoyers
2007-07-20 15:32 ` [PATCH] [4/11] x86_64: Set K8 CPUID flag for K8/Fam10h/Fam11h Andi Kleen
2007-07-20 15:32 ` [PATCH] [5/11] x86: Unify alternative nop handling between i386 and x86-64 Andi Kleen
2007-07-20 15:32 ` [PATCH] [6/11] i386: Tune AMD Fam10h/11h like K8 Andi Kleen
2007-07-20 15:32 ` [PATCH] [7/11] i386: Do not include other cpus' interrupt 0 in nmi_watchdog Andi Kleen
2007-07-20 15:32 ` Andi Kleen [this message]
2007-07-20 15:32 ` [PATCH] [9/11] x86: Replace NSC/Cyrix specific chipset access macros by inlined functions Andi Kleen
2007-07-21 12:00 ` Alexey Dobriyan
2007-07-21 12:04 ` Andi Kleen
2007-07-22 10:45 ` Juergen Beisert
2007-07-20 15:32 ` [PATCH] [10/11] i386: Handle P6s without performance counters in nmi watchdog Andi Kleen
2007-07-20 15:32 ` [PATCH] [11/11] i386: Use patchable lock prefix in set_64bit Andi Kleen
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