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2c739ced AL |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | #include <linux/fault-inject.h> | |
3 | #include <linux/fault-inject-usercopy.h> | |
4 | ||
5 | static struct { | |
6 | struct fault_attr attr; | |
7 | } fail_usercopy = { | |
8 | .attr = FAULT_ATTR_INITIALIZER, | |
9 | }; | |
10 | ||
11 | static int __init setup_fail_usercopy(char *str) | |
12 | { | |
13 | return setup_fault_attr(&fail_usercopy.attr, str); | |
14 | } | |
15 | __setup("fail_usercopy=", setup_fail_usercopy); | |
16 | ||
17 | #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS | |
18 | ||
19 | static int __init fail_usercopy_debugfs(void) | |
20 | { | |
21 | struct dentry *dir; | |
22 | ||
23 | dir = fault_create_debugfs_attr("fail_usercopy", NULL, | |
24 | &fail_usercopy.attr); | |
25 | if (IS_ERR(dir)) | |
26 | return PTR_ERR(dir); | |
27 | ||
28 | return 0; | |
29 | } | |
30 | ||
31 | late_initcall(fail_usercopy_debugfs); | |
32 | ||
33 | #endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */ | |
34 | ||
35 | bool should_fail_usercopy(void) | |
36 | { | |
37 | return should_fail(&fail_usercopy.attr, 1); | |
38 | } | |
39 | EXPORT_SYMBOL_GPL(should_fail_usercopy); |