[patch 05/28] Add cmpxchg64 and cmpxchg64_local to x86_64

[Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>]

Make sure that at least cmpxchg64_local is available on all architectures to use
for unsigned long long values.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andi Kleen <ak@muc.de>
---
 include/asm-x86_64/cmpxchg.h |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-2.6-lttng/include/asm-x86_64/cmpxchg.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-x86_64/cmpxchg.h	2007-08-27 11:16:46.000000000 -0400
+++ linux-2.6-lttng/include/asm-x86_64/cmpxchg.h	2007-08-27 11:17:21.000000000 -0400
@@ -127,8 +127,10 @@ static inline unsigned long __cmpxchg_lo
 #define cmpxchg(ptr,o,n)\
 	((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\
 					(unsigned long)(n),sizeof(*(ptr))))
+#define cmpxchg64	cmpxchg
 #define cmpxchg_local(ptr,o,n)\
 	((__typeof__(*(ptr)))__cmpxchg_local((ptr),(unsigned long)(o),\
 					(unsigned long)(n),sizeof(*(ptr))))
+#define cmpxchg64_local	cmpxchg_local
 
 #endif

-- 
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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