BPF_TASK_FD_QUERY 2775 kernel/bpf/syscall.c if (CHECK_ATTR(BPF_TASK_FD_QUERY)) BPF_TASK_FD_QUERY 2933 kernel/bpf/syscall.c case BPF_TASK_FD_QUERY: BPF_TASK_FD_QUERY 697 tools/lib/bpf/bpf.c err = sys_bpf(BPF_TASK_FD_QUERY, &attr, sizeof(attr));