Lines Matching defs:kfd
223 int err, res, kfd, efd;
228 kfd = open(buf, O_WRONLY | O_APPEND, 0);
229 CHECK_PERROR_RET(kfd < 0);
238 CHECK_PERROR_RET(write(kfd, buf, strlen(buf)) < 0);
240 close(kfd);
241 kfd = -1;
257 kfd = sys_perf_event_open(&attr, -1, 0, -1, PERF_FLAG_FD_CLOEXEC);
258 CHECK_PERROR_RET(kfd < 0);
259 CHECK_PERROR_RET(ioctl(kfd, PERF_EVENT_IOC_SET_BPF, prog_fd[0]) < 0);
260 CHECK_PERROR_RET(ioctl(kfd, PERF_EVENT_IOC_ENABLE, 0) < 0);
263 err = bpf_task_fd_query(getpid(), kfd, 0, buf, &len,
287 close(kfd);