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1// SPDX-License-Identifier: GPL-2.02/* 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}27