Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
3#include <linux/bpf.h>
4#include <bpf/bpf_helpers.h>
5
6char _license[] SEC("license") = "GPL";
7
8struct htab_val {
9 struct bpf_spin_lock lock;
10 unsigned int data;
11};
12
13struct {
14 __uint(type, BPF_MAP_TYPE_HASH);
15 __uint(max_entries, 64);
16 __type(key, unsigned int);
17 __type(value, struct htab_val);
18 __uint(map_flags, BPF_F_NO_PREALLOC);
19} htab SEC(".maps");
20
21#define HTAB_NDATA 256
22
23struct htab_val_large {
24 struct bpf_spin_lock lock;
25 __u32 seq;
26 __u64 data[HTAB_NDATA];
27};
28
29struct {
30 __uint(type, BPF_MAP_TYPE_HASH);
31 __uint(max_entries, 8);
32 __type(key, unsigned int);
33 __type(value, struct htab_val_large);
34 __uint(map_flags, BPF_F_NO_PREALLOC);
35} htab_lock_consistency SEC(".maps");