ext4__trim 1794 include/trace/events/ext4.h DECLARE_EVENT_CLASS(ext4__trim, ext4__trim 1823 include/trace/events/ext4.h DEFINE_EVENT(ext4__trim, ext4_trim_extent, ext4__trim 1833 include/trace/events/ext4.h DEFINE_EVENT(ext4__trim, ext4_trim_all_free,