From: Mathieu Desnoyers <[email protected]>
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 <[email protected]>
Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
CC: Andi Kleen <[email protected]>
---
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
-
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