[tip:perf/core] tools include: Introduce atomic_cmpxchg_{relaxed,release}()

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  2bcdeadbc094b4f6511aedea1e5b8052bf0cc89c
Gitweb:     http://git.kernel.org/tip/2bcdeadbc094b4f6511aedea1e5b8052bf0cc89c
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 22 Feb 2017 16:57:53 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 3 Mar 2017 19:07:14 -0300

tools include: Introduce atomic_cmpxchg_{relaxed,release}()

Will be used by refcnt.h

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Elena Reshetova <elena.reshetova@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-jszriruqfqpez1bkivwfj6qb@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/include/linux/atomic.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/include/linux/atomic.h b/tools/include/linux/atomic.h
index 4e3d3d1..9f21fc2 100644
--- a/tools/include/linux/atomic.h
+++ b/tools/include/linux/atomic.h
@@ -3,4 +3,10 @@
 
 #include <asm/atomic.h>
 
+/* atomic_cmpxchg_relaxed */
+#ifndef atomic_cmpxchg_relaxed
+#define  atomic_cmpxchg_relaxed		atomic_cmpxchg
+#define  atomic_cmpxchg_release         atomic_cmpxchg
+#endif /* atomic_cmpxchg_relaxed */
+
 #endif /* __TOOLS_LINUX_ATOMIC_H */