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authorJiri Olsa <jolsa@kernel.org>2014-05-05 13:16:41 +0200
committerJiri Olsa <jolsa@kernel.org>2014-05-05 17:49:07 +0200
commit73a31b7c6a85e2f033524058bad5bce900e4f2ed (patch)
tree9a49847d06c707aa0b441bc88babe76ede3c0de1 /tools/include
parent82baa0eb46c15b749723d0c801470fea044657d7 (diff)
downloadlinux-73a31b7c6a85e2f033524058bad5bce900e4f2ed.tar.bz2
perf tools: Move ACCESS_ONCE from perf.h header
Into tools/include/linux/compiler.h header. Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-9sk90owm370kuq3f0ssjjui2@git.kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/linux/compiler.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index fbc6665c6d53..88461f09cc86 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -35,4 +35,6 @@
# define unlikely(x) __builtin_expect(!!(x), 0)
#endif
+#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+
#endif /* _TOOLS_LINUX_COMPILER_H */