+static void rcu_destroy_session(struct rcu_head *rcu_head)
+{
+ struct relay_session *session =
+ caa_container_of(rcu_head, struct relay_session,
+ rcu_node);
+ /*
+ * Since each trace has a reference on the session, it means
+ * that if we are at the point where we teardown the session, no
+ * trace belonging to that session exist at this point.
+ * Calling lttng_ht_destroy in call_rcu worker thread so we
+ * don't hold the RCU read-side lock while calling it.
+ */
+ lttng_ht_destroy(session->ctf_traces_ht);
+ free(session);
+}
+