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1// SPDX-License-Identifier: GPL-2.02/* 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/sched_balance_rq")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