22 lines
387 B
C
22 lines
387 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2018 Facebook
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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__u64 cg_id;
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__u64 expected_pid;
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SEC("tracepoint/syscalls/sys_enter_nanosleep")
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int trace(void *ctx)
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{
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__u32 pid = bpf_get_current_pid_tgid();
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if (expected_pid == pid)
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cg_id = bpf_get_current_cgroup_id();
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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