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cb55657c7f
Add test cases to verify the following four update operations on htab of maps don't trigger lockdep warning: (1) add then delete (2) add, overwrite, then delete (3) add, then lookup_and_delete (4) add two elements, then lookup_and_delete_batch Test cases are added for pre-allocated and non-preallocated htab of maps respectively. Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20241106063542.357743-4-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
31 lines
764 B
C
31 lines
764 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (C) 2024. Huawei Technologies Co., Ltd */
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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struct inner_map_type {
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__uint(type, BPF_MAP_TYPE_ARRAY);
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__uint(key_size, 4);
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__uint(value_size, 4);
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__uint(max_entries, 1);
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} inner_map SEC(".maps");
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struct {
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__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
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__type(key, int);
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__type(value, int);
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__uint(max_entries, 2);
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__array(values, struct inner_map_type);
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} outer_htab_map SEC(".maps");
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struct {
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__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
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__uint(map_flags, BPF_F_NO_PREALLOC);
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__type(key, int);
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__type(value, int);
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__uint(max_entries, 2);
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__array(values, struct inner_map_type);
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} outer_alloc_htab_map SEC(".maps");
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char _license[] SEC("license") = "GPL";
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