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linux-kernel/linux-7.2.3/tools/testing/selftests/bpf/progs/htab_reuse.c
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2026-09-06 12:53:21 -06:00

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C

// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
char _license[] SEC("license") = "GPL";
struct htab_val {
struct bpf_spin_lock lock;
unsigned int data;
};
struct {
__uint(type, BPF_MAP_TYPE_HASH);
__uint(max_entries, 64);
__type(key, unsigned int);
__type(value, struct htab_val);
__uint(map_flags, BPF_F_NO_PREALLOC);
} htab SEC(".maps");
#define HTAB_NDATA 256
struct htab_val_large {
struct bpf_spin_lock lock;
__u32 seq;
__u64 data[HTAB_NDATA];
};
struct {
__uint(type, BPF_MAP_TYPE_HASH);
__uint(max_entries, 8);
__type(key, unsigned int);
__type(value, struct htab_val_large);
__uint(map_flags, BPF_F_NO_PREALLOC);
} htab_lock_consistency SEC(".maps");