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

Mathieu Desnoyers
2007-10-30T19:31:29Z

[-- Attachment #1: add-cmpxchg64-to-powerpc.patch --]
[-- Type: text/plain, Size: 1155 bytes --]

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>
Acked-by: Paul Mackerras <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 2007-09-24 10:50:11.000000000 -0400
+++ linux-2.6-lttng/include/asm-powerpc/system.h 2007-09-24 11:01:04.000000000 -0400
@@ -488,6 +488,12 @@ __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)