- struct lttng_ctx_field *field =
- container_of(nb, struct lttng_ctx_field, u.perf_counter.nb);
- struct perf_event **events = field->u.perf_counter.e;
- struct perf_event_attr *attr = field->u.perf_counter.attr;
+ struct lttng_perf_counter_field *perf_field =
+ container_of(nb, struct lttng_perf_counter_field, nb);
+ struct perf_event **events = perf_field->e;
+ struct perf_event_attr *attr = perf_field->attr;