projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a70f6526 DH |
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 | ||
| a70f6526 DH |
25 | int __init cachefiles_register_error_injection(void) |
| 26 | { | |
| 3d379b8d | 27 | cachefiles_sysctl = register_sysctl("cachefiles", cachefiles_sysctls); |
| a70f6526 DH |
28 | if (!cachefiles_sysctl) |
| 29 | return -ENOMEM; | |
| 30 | return 0; | |
| 31 | ||
| 32 | } | |
| 33 | ||
| 34 | void cachefiles_unregister_error_injection(void) | |
| 35 | { | |
| 36 | unregister_sysctl_table(cachefiles_sysctl); | |
| 37 | } |