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