84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
|
|
* sysctl.c - Code for sysctl handling in NTFS Linux kernel driver. Part of
|
|
* the Linux-NTFS project. Adapted from the old NTFS driver,
|
|
* Copyright (C) 1997 Martin von Löwis, Régis Duchesne
|
|
*
|
|
* Copyright (c) 2002-2005 Anton Altaparmakov
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifdef DEBUG
|
|
|
|
#include <linux/module.h>
|
|
|
|
#ifdef CONFIG_SYSCTL
|
|
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/sysctl.h>
|
|
|
|
#include "sysctl.h"
|
|
#include "debug.h"
|
|
|
|
/* Definition of the ntfs sysctl. */
|
|
static struct ctl_table ntfs_sysctls[] = {
|
|
{
|
|
.procname = "ntfs-debug",
|
|
.data = &debug_msgs, /* Data pointer and size. */
|
|
.maxlen = sizeof(debug_msgs),
|
|
.mode = 0644, /* Mode, proc handler. */
|
|
.proc_handler = proc_dointvec
|
|
},
|
|
{}
|
|
};
|
|
|
|
/* Define the parent directory /proc/sys/fs. */
|
|
static struct ctl_table sysctls_root[] = {
|
|
{
|
|
.procname = "fs",
|
|
.mode = 0555,
|
|
.child = ntfs_sysctls
|
|
},
|
|
{}
|
|
};
|
|
|
|
/* Storage for the sysctls header. */
|
|
static struct ctl_table_header *sysctls_root_table;
|
|
|
|
/**
|
|
* ntfs_sysctl - add or remove the debug sysctl
|
|
* @add: add (1) or remove (0) the sysctl
|
|
*
|
|
* Add or remove the debug sysctl. Return 0 on success or -errno on error.
|
|
*/
|
|
int ntfs_sysctl(int add)
|
|
{
|
|
if (add) {
|
|
BUG_ON(sysctls_root_table);
|
|
sysctls_root_table = register_sysctl_table(sysctls_root);
|
|
if (!sysctls_root_table)
|
|
return -ENOMEM;
|
|
} else {
|
|
BUG_ON(!sysctls_root_table);
|
|
unregister_sysctl_table(sysctls_root_table);
|
|
sysctls_root_table = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_SYSCTL */
|
|
#endif /* DEBUG */
|