43 lines
870 B
C
43 lines
870 B
C
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
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#include <vmlinux.h>
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#include <bpf/bpf_helpers.h>
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#include "uptr_test_common.h"
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struct {
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__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
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__uint(map_flags, BPF_F_NO_PREALLOC);
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__type(key, int);
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__type(value, struct value_lock_type);
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} datamap SEC(".maps");
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/* load test only. not used */
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SEC("syscall")
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int not_used(void *ctx)
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{
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struct value_lock_type *ptr;
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struct task_struct *task;
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struct user_data *udata;
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task = bpf_get_current_task_btf();
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ptr = bpf_task_storage_get(&datamap, task, 0, 0);
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if (!ptr)
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return 0;
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bpf_spin_lock(&ptr->lock);
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udata = ptr->udata;
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if (!udata) {
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bpf_spin_unlock(&ptr->lock);
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return 0;
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}
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udata->result = MAGIC_VALUE + udata->a + udata->b;
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bpf_spin_unlock(&ptr->lock);
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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