// 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/sched_balance_rq") | |
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"; |