1// SPDX-License-Identifier: GPL-2.0 2/* Copyright (c) 2023 Bytedance */ 3 4#include "vmlinux.h" 5#include <bpf/bpf_helpers.h> 6#include <bpf/bpf_tracing.h> 7 8unsigned long span = 0; 9 10SEC("fentry/load_balance") 11int BPF_PROG(fentry_fentry, int this_cpu, struct rq *this_rq, 12 struct sched_domain *sd) 13{ 14 span = sd->span[0]; 15 16 return 0; 17} 18 19char _license[] SEC("license") = "GPL"; 20