perf tools: Protect header files with a consistent style
There was a colorful mix of header guards - standardize them.
Signed-off-by: John Kacur <jkacur@redhat.com>
LKML-Reference: <alpine.LFD.2.00.0909241756530.11383@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 32aea3c..693ed1e 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -1,3 +1,6 @@
+#ifndef __PERF_THREAD_H
+#define __PERF_THREAD_H
+
#include <linux/rbtree.h>
#include <linux/list.h>
#include <unistd.h>
@@ -20,3 +23,5 @@
int thread__fork(struct thread *self, struct thread *parent);
struct map *thread__find_map(struct thread *self, u64 ip);
size_t threads__fprintf(FILE *fp, struct rb_root *threads);
+
+#endif /* __PERF_THREAD_H */