15ff54dedSFeng Zhou // SPDX-License-Identifier: GPL-2.0 25ff54dedSFeng Zhou /* Copyright (c) 2023 Bytedance */ 35ff54dedSFeng Zhou 45ff54dedSFeng Zhou #include "vmlinux.h" 55ff54dedSFeng Zhou #include <bpf/bpf_helpers.h> 65ff54dedSFeng Zhou #include <bpf/bpf_tracing.h> 75ff54dedSFeng Zhou 85ff54dedSFeng Zhou unsigned long span = 0; 95ff54dedSFeng Zhou 10*5405807eSMartin KaFai Lau SEC("fentry/sched_balance_rq") BPF_PROG(fentry_fentry,int this_cpu,struct rq * this_rq,struct sched_domain * sd)115ff54dedSFeng Zhouint BPF_PROG(fentry_fentry, int this_cpu, struct rq *this_rq, 125ff54dedSFeng Zhou struct sched_domain *sd) 135ff54dedSFeng Zhou { 145ff54dedSFeng Zhou span = sd->span[0]; 155ff54dedSFeng Zhou 165ff54dedSFeng Zhou return 0; 175ff54dedSFeng Zhou } 185ff54dedSFeng Zhou 195ff54dedSFeng Zhou char _license[] SEC("license") = "GPL"; 20