1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
 3
 4#include "vmlinux.h"
 5#include <bpf/bpf_helpers.h>
 6#include <bpf/bpf_tracing.h>
 7
 8char _license[] SEC("license") = "GPL";
 9
10struct {
11	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
12	__uint(map_flags, BPF_F_NO_PREALLOC);
13	__type(key, int);
14	__type(value, long);
15} map_a SEC(".maps");
16
17SEC("tp_btf/sys_enter")
18int BPF_PROG(on_enter, struct pt_regs *regs, long id)
19{
20	struct task_struct *task;
21
22	task = bpf_get_current_task_btf();
23	(void)bpf_cgrp_storage_get(&map_a, (struct cgroup *)task, 0,
24				   BPF_LOCAL_STORAGE_GET_F_CREATE);
25	return 0;
26}

 1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
 3
 4#include "vmlinux.h"
 5#include <bpf/bpf_helpers.h>
 6#include <bpf/bpf_tracing.h>
 7
 8char _license[] SEC("license") = "GPL";
 9
10struct {
11	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
12	__uint(map_flags, BPF_F_NO_PREALLOC);
13	__type(key, int);
14	__type(value, long);
15} map_a SEC(".maps");
16
17SEC("tp_btf/sys_enter")
18int BPF_PROG(on_enter, struct pt_regs *regs, long id)
19{
20	struct task_struct *task;
21
22	task = bpf_get_current_task_btf();
23	(void)bpf_cgrp_storage_get(&map_a, (struct cgroup *)task, 0,
24				   BPF_LOCAL_STORAGE_GET_F_CREATE);
25	return 0;
26}