Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: clameter@sgi.com
CC: lethal@linux-sh.org
---
 include/asm-sh64/system.h |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

Index: linux-2.6-lttng/include/asm-sh64/system.h
===================================================================
--- linux-2.6-lttng.orig/include/asm-sh64/system.h	2007-07-23 11:01:16.000000000 -0400
+++ linux-2.6-lttng/include/asm-sh64/system.h	2007-07-23 11:01:20.000000000 -0400
@@ -164,6 +164,21 @@ static __inline__ unsigned long __xchg(u
 	return x;
 }
 
+#include <asm-generic/cmpxchg-local.h>
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr,o,n)					  	    \
+     (__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o), \
+			   	 (unsigned long)(n), sizeof(*(ptr)))
+#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+#ifndef CONFIG_SMP
+#include <asm-generic/cmpxchg.h>
+#endif
+
 /* XXX
  * disable hlt during certain critical i/o operations
  */

-- 
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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