a1d312de77
Based on 1 normalized pattern(s): this program include file is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program include file is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program in the main directory of the linux [ntfs] distribution in the file copying if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 43 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075212.517001706@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* sysctl.c - Code for sysctl handling in NTFS Linux kernel driver. Part of
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* the Linux-NTFS project. Adapted from the old NTFS driver,
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* Copyright (C) 1997 Martin von Löwis, Régis Duchesne
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*
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* Copyright (c) 2002-2005 Anton Altaparmakov
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*/
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#ifdef DEBUG
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#include <linux/module.h>
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#ifdef CONFIG_SYSCTL
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#include <linux/proc_fs.h>
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#include <linux/sysctl.h>
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#include "sysctl.h"
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#include "debug.h"
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/* Definition of the ntfs sysctl. */
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static struct ctl_table ntfs_sysctls[] = {
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{
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.procname = "ntfs-debug",
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.data = &debug_msgs, /* Data pointer and size. */
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.maxlen = sizeof(debug_msgs),
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.mode = 0644, /* Mode, proc handler. */
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.proc_handler = proc_dointvec
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},
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{}
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};
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/* Define the parent directory /proc/sys/fs. */
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static struct ctl_table sysctls_root[] = {
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{
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.procname = "fs",
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.mode = 0555,
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.child = ntfs_sysctls
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},
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{}
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};
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/* Storage for the sysctls header. */
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static struct ctl_table_header *sysctls_root_table;
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/**
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* ntfs_sysctl - add or remove the debug sysctl
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* @add: add (1) or remove (0) the sysctl
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*
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* Add or remove the debug sysctl. Return 0 on success or -errno on error.
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*/
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int ntfs_sysctl(int add)
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{
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if (add) {
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BUG_ON(sysctls_root_table);
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sysctls_root_table = register_sysctl_table(sysctls_root);
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if (!sysctls_root_table)
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return -ENOMEM;
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} else {
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BUG_ON(!sysctls_root_table);
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unregister_sysctl_table(sysctls_root_table);
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sysctls_root_table = NULL;
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}
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return 0;
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}
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#endif /* CONFIG_SYSCTL */
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#endif /* DEBUG */
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