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-rw-r--r--tools/perf/util/event.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index db526091f580..a513a51f7330 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -919,6 +919,10 @@ void thread__find_addr_location(struct thread *thread,
al->sym = NULL;
}
+/*
+ * Callers need to drop the reference to al->thread, obtained in
+ * machine__findnew_thread()
+ */
int perf_event__preprocess_sample(const union perf_event *event,
struct machine *machine,
struct addr_location *al,
@@ -979,6 +983,17 @@ int perf_event__preprocess_sample(const union perf_event *event,
return 0;
}
+/*
+ * The preprocess_sample method will return with reference counts for the
+ * in it, when done using (and perhaps getting ref counts if needing to
+ * keep a pointer to one of those entries) it must be paired with
+ * addr_location__put(), so that the refcounts can be decremented.
+ */
+void addr_location__put(struct addr_location *al)
+{
+ thread__zput(al->thread);
+}
+
bool is_bts_event(struct perf_event_attr *attr)
{
return attr->type == PERF_TYPE_HARDWARE &&