[patch 04/28] Add cmpxchg64 and cmpxchg64_local to powerpc

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

Signed-off-by: Mathieu Desnoyers <redacted>
CC: paulus@samba.org
CC: linuxppc-dev@ozlabs.org
---
 include/asm-powerpc/system.h |    6 ++++++
 1 file changed, 6 insertions(+)

Index: linux-2.6-lttng/include/asm-powerpc/system.h
===================================================================

--- linux-2.6-lttng.orig/include/asm-powerpc/system.h	2007-08-27 11:42:08.000000000 -0400
+++ linux-2.6-lttng/include/asm-powerpc/system.h	2007-08-27 11:42:43.000000000 -0400

@@ -485,6 +485,12 @@ __cmpxchg_local(volatile void *ptr, unsi
  */
 #define NET_IP_ALIGN	0
 #define NET_SKB_PAD	L1_CACHE_BYTES
+
+#define cmpxchg64	cmpxchg
+#define cmpxchg64_local	cmpxchg_local
+#else
+#include <asm-generic/cmpxchg-local.h>
+#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n))
 #endif
 
 #define arch_align_stack(x) (x)

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

Mathieu Desnoyers writes:

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

Signed-off-by: Mathieu Desnoyers <redacted>

Acked-by: Paul Mackerras <redacted>

* Paul Mackerras (paulus@samba.org) wrote:

Mathieu Desnoyers writes:

quoted

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

Signed-off-by: Mathieu Desnoyers <redacted>

Acked-by: Paul Mackerras <redacted>

Thanks Paul,

Just make sure add-cmpxchg-local-to-generic-for-up.patch gets merged
before this one, since it needs asm-generic/cmpxchg-local.h.

Mathieu

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