1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Error injection handling.
3 *
4 * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
6 */
7
8 #include <linux/sysctl.h>
9 #include "internal.h"
10
11 unsigned int cachefiles_error_injection_state;
12
13 static struct ctl_table_header *cachefiles_sysctl;
14 static struct ctl_table cachefiles_sysctls[] = {
15 {
16 .procname = "error_injection",
17 .data = &cachefiles_error_injection_state,
18 .maxlen = sizeof(unsigned int),
19 .mode = 0644,
20 .proc_handler = proc_douintvec,
21 },
22 };
23
24 int __init cachefiles_register_error_injection(void)
25 {
26 cachefiles_sysctl = register_sysctl("cachefiles", cachefiles_sysctls);
27 if (!cachefiles_sysctl)
28 return -ENOMEM;
29 return 0;
30
31 }
32
33 void cachefiles_unregister_error_injection(void)
34 {
35 unregister_sysctl_table(cachefiles_sysctl);
36 }
37
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