| // 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"; |