From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- fs/ntfs/sysctl.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 fs/ntfs/sysctl.c (limited to 'fs/ntfs/sysctl.c') diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c new file mode 100644 index 000000000000..75067e4f3036 --- /dev/null +++ b/fs/ntfs/sysctl.c @@ -0,0 +1,85 @@ +/* + * 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) 2002-2004 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 + +#ifdef CONFIG_SYSCTL + +#include +#include + +#include "sysctl.h" +#include "debug.h" + +#define FS_NTFS 1 + +/* Definition of the ntfs sysctl. */ +static ctl_table ntfs_sysctls[] = { + { FS_NTFS, "ntfs-debug", /* Binary and text IDs. */ + &debug_msgs,sizeof(debug_msgs), /* Data pointer and size. */ + 0644, NULL, &proc_dointvec }, /* Mode, child, proc handler. */ + { 0 } +}; + +/* Define the parent directory /proc/sys/fs. */ +static ctl_table sysctls_root[] = { + { CTL_FS, "fs", NULL, 0, 0555, ntfs_sysctls }, + { 0 } +}; + +/* Storage for the sysctls header. */ +static struct ctl_table_header *sysctls_root_table = NULL; + +/** + * 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, 0); + if (!sysctls_root_table) + return -ENOMEM; +#ifdef CONFIG_PROC_FS + /* + * If the proc file system is in use and we are a module, need + * to set the owner of our proc entry to our module. In the + * non-modular case, THIS_MODULE is NULL, so this is ok. + */ + ntfs_sysctls[0].de->owner = THIS_MODULE; +#endif + } else { + BUG_ON(!sysctls_root_table); + unregister_sysctl_table(sysctls_root_table); + sysctls_root_table = NULL; + } + return 0; +} + +#endif /* CONFIG_SYSCTL */ +#endif /* DEBUG */ -- cgit v1.2.3-59-g8ed1b