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