// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2023 Bytedance */ #include "vmlinux.h" #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> unsigned long span = 0; SEC("fentry/load_balance") int BPF_PROG(fentry_fentry, int this_cpu, struct rq *this_rq, struct sched_domain *sd) { span = sd->span[0]; return 0; } char _license[] SEC("license") = "GPL";