Corpus for eventfd:

Coverage	Program
3542	perf_event_open-ioprio_set$uid-openat$loop_ctrl-creat-fcntl$setstatus-io_setup-write$binfmt_script-eventfd-openat$dir-io_submit-ioctl$LOOP_CTL_REMOVE-ioctl$LOOP_CTL_GET_FREE-socket$packet-getsockopt$packet_buf-ioctl$LOOP_CTL_ADD-openat$loop_ctrl
1067	perf_event_open-prlimit64-eventfd-openat-socket$inet_udplite-io_submit
387	perf_event_open-eventfd-write$eventfd
282	perf_event_open-eventfd
280	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-eventfd
125	perf_event_open-prlimit64-eventfd