+ /*
+ * Iterate over all the streams of the trace to see if we have a
+ * metadata stream.
+ */
+ cds_list_for_each_entry_rcu(
+ stream, &ctf_trace->stream_list, stream_node)
+ {
+ if (stream->is_metadata) {
+ trace_has_metadata_stream = true;
+ break;
+ }
+ }
+
+ /*
+ * If there is no metadata stream in this trace at the moment
+ * and we never sent one to the viewer, skip the trace. We
+ * accept that the viewer will not see this trace at all.
+ */
+ if (!trace_has_metadata_stream &&
+ !ctf_trace->metadata_stream_sent_to_viewer) {
+ break;
+ }
+