ioctl_evtchn_notify  567 drivers/xen/evtchn.c 		struct ioctl_evtchn_notify notify;
ioctl_evtchn_notify   80 include/uapi/xen/evtchn.h 	_IOC(_IOC_NONE, 'E', 4, sizeof(struct ioctl_evtchn_notify))