+static void record_error(struct lttng_event_notifier *event_notifier)
+{
+ struct lttng_event_notifier_group *event_notifier_group =
+ event_notifier->group;
+ struct lttng_counter *error_counter;
+ size_t dimension_index[1];
+ int ret;
+
+ error_counter = CMM_LOAD_SHARED(event_notifier_group->error_counter);
+ /*
+ * load-acquire paired with store-release orders creation of the
+ * error counter and setting error_counter_len before the
+ * error_counter is used.
+ * Currently a full memory barrier is used, which could be
+ * turned into acquire-release barriers.
+ */
+ cmm_smp_mb();
+ /* This group may not have an error counter attached to it. */
+ if (!error_counter)
+ return;
+
+ dimension_index[0] = event_notifier->error_counter_index;
+ ret = event_notifier_group->error_counter->ops->counter_add(
+ error_counter->counter, dimension_index, 1);
+ if (ret)
+ WARN_ON_ONCE(1);
+}
+