Cregit: Linux 6.13: get_cgroup_id

Contributors: 4
Author	Tokens	Token Proportion	Commits	Commit Proportion
Yonghong Song	48	84.21%	2	40.00%
Alexis Lothoré	7	12.28%	1	20.00%
Greg Kroah-Hartman	1	1.75%	1	20.00%
Toke Höiland-Jörgensen	1	1.75%	1	20.00%
Total	57		5

// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018 Facebook

#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>

__u64 cg_id;
__u64 expected_pid;

SEC("tracepoint/syscalls/sys_enter_nanosleep")
int trace(void *ctx)
{
	__u32 pid = bpf_get_current_pid_tgid();

	if (expected_pid == pid)
		cg_id = bpf_get_current_cgroup_id();

	return 0;
}

char _license[] SEC("license") = "GPL";

get_cgroup_id_kern.c