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-rw-r--r--tools/perf/util/thread_map.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index f718df8a3c59..0cd8b3108084 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -21,4 +21,9 @@ void thread_map__delete(struct thread_map *threads);
size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
+static inline int thread_map__nr(struct thread_map *threads)
+{
+ return threads ? threads->nr : 1;
+}
+
#endif /* __PERF_THREAD_MAP_H */