PERF_EVENT_IOC_MODIFY_ATTRIBUTES  465 include/uapi/linux/perf_event.h #define PERF_EVENT_IOC_MODIFY_ATTRIBUTES	_IOW('$', 11, struct perf_event_attr *)
PERF_EVENT_IOC_MODIFY_ATTRIBUTES  465 tools/include/uapi/linux/perf_event.h #define PERF_EVENT_IOC_MODIFY_ATTRIBUTES	_IOW('$', 11, struct perf_event_attr *)