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1e9ea7e044
This reverts commit 7ffa8f3d30.
Reverts the removal of the classic read-only ntfs driver to
serve as the base for a new read-write ntfs implementation.
If we stack changes on top of the revert patch, It will significantly
reduce the diff size, making the review easier.
This revert intentionally excludes the restoration of Kconfig and
Makefile. The Kconfig and Makefile will be added back in the final patch
of this series, enabling the driver only after all features and
improvements have been applied.
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
59 lines
1.3 KiB
C
59 lines
1.3 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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/* 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("fs", ntfs_sysctls);
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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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