TRACE_FILE_TIME_IN_NS
iter->iter_flags |= TRACE_FILE_TIME_IN_NS;
iter->iter_flags |= TRACE_FILE_TIME_IN_NS;
iter->iter_flags |= TRACE_FILE_TIME_IN_NS;
unsigned long in_ns = iter->iter_flags & TRACE_FILE_TIME_IN_NS;
if (iter->iter_flags & TRACE_FILE_TIME_IN_NS) {