1 files changed, 9 insertions, 0 deletions

diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 24a53d562d0a..8f84423a75da 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -167,4 +167,13 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
 
 extern const char record_callchain_help[];
 int parse_callchain_report_opt(const char *arg);
+
+static inline void callchain_cursor_snapshot(struct callchain_cursor *dest,
+                                             struct callchain_cursor *src)
+{
+        *dest = *src;
+
+        dest->first = src->curr;
+        dest->nr -= src->pos;
+}
 #endif  /* __PERF_CALLCHAIN_H */