// SPDX-License-Identifier: GPL-2.0-or-later/* Error injection handling. * * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #include <linux/sysctl.h>#include "internal.h" unsigned int cachefiles_error_injection_state; static struct ctl_table_header *cachefiles_sysctl;static struct ctl_table cachefiles_sysctls[] = {	{		.procname	= "error_injection",		.data		= &cachefiles_error_injection_state,		.maxlen		= sizeof(unsigned int),		.mode		= 0644,		.proc_handler	= proc_douintvec,	},	{}}; static struct ctl_table cachefiles_sysctls_root[] = {	{		.procname	= "cachefiles",		.mode		= 0555,		.child		= cachefiles_sysctls,	},	{}}; int __init cachefiles_register_error_injection(void){	cachefiles_sysctl = register_sysctl_table(cachefiles_sysctls_root);	if (!cachefiles_sysctl)		return -ENOMEM;	return 0; } void cachefiles_unregister_error_injection(void){	unregister_sysctl_table(cachefiles_sysctl);}