error-inject.c (00c9d5632277b21ba8802e26c27254cd9d0dfa13) error-inject.c (86e5908ec293bf6505a59d02542da006226bcaa7)
1// SPDX-License-Identifier: GPL-2.0
2// error-inject.c: Function-level error injection table
3#include <linux/error-injection.h>
4#include <linux/debugfs.h>
5#include <linux/kallsyms.h>
6#include <linux/kprobes.h>
7#include <linux/module.h>
8#include <linux/mutex.h>

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35 }
36 mutex_unlock(&ei_mutex);
37 return ret;
38}
39
40int get_injectable_error_type(unsigned long addr)
41{
42 struct ei_entry *ent;
1// SPDX-License-Identifier: GPL-2.0
2// error-inject.c: Function-level error injection table
3#include <linux/error-injection.h>
4#include <linux/debugfs.h>
5#include <linux/kallsyms.h>
6#include <linux/kprobes.h>
7#include <linux/module.h>
8#include <linux/mutex.h>

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35 }
36 mutex_unlock(&ei_mutex);
37 return ret;
38}
39
40int get_injectable_error_type(unsigned long addr)
41{
42 struct ei_entry *ent;
43 int ei_type = EI_ETYPE_NONE;
43
44
45 mutex_lock(&ei_mutex);
44 list_for_each_entry(ent, &error_injection_list, list) {
46 list_for_each_entry(ent, &error_injection_list, list) {
45 if (addr >= ent->start_addr && addr < ent->end_addr)
46 return ent->etype;
47 if (addr >= ent->start_addr && addr < ent->end_addr) {
48 ei_type = ent->etype;
49 break;
50 }
47 }
51 }
48 return EI_ETYPE_NONE;
52 mutex_unlock(&ei_mutex);
53
54 return ei_type;
49}
50
51/*
52 * Lookup and populate the error_injection_list.
53 *
54 * For safety reasons we only allow certain functions to be overridden with
55 * bpf_error_injection, so we need to populate the list of the symbols that have
56 * been marked as safe for overriding.

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56
57/*
58 * Lookup and populate the error_injection_list.
59 *
60 * For safety reasons we only allow certain functions to be overridden with
61 * bpf_error_injection, so we need to populate the list of the symbols that have
62 * been marked as safe for overriding.

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