| 1 | |
| 2 | |
| 3 | * Code for sysctl handling in NTFS Linux kernel driver.
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| 4 | *
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| 5 | * Copyright (C) 1997 Martin von Löwis, Régis Duchesne
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| 6 | * Copyright (c) 2002-2005 Anton Altaparmakov
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| 7 |
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| 8 |
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| 9 | #ifdef DEBUG
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| 10 |
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| 11 | #include <linux/module.h>
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| 12 |
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| 13 | #ifdef CONFIG_SYSCTL
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| 14 |
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| 15 | #include <linux/proc_fs.h>
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| 16 | #include <linux/sysctl.h>
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| 17 |
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| 18 | #include "sysctl.h"
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| 19 | #include "debug.h"
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| 20 |
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| 21 |
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| 22 | static const struct ctl_table ntfs_sysctls[] = {
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| 23 | {
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| 24 | .procname = "ntfs-debug",
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| 25 | .data = &debug_msgs,
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| 26 | .maxlen = sizeof(debug_msgs),
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| 27 | .mode = 0644,
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| 28 | .proc_handler = proc_dointvec
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| 29 | },
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| 30 | };
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| 31 |
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| 32 |
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| 33 | static struct ctl_table_header *sysctls_root_table;
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| 34 |
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| 35 | |
| 36 | * ntfs_sysctl - add or remove the debug sysctl
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| 37 | * @add: add (1) or remove (0) the sysctl
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| 38 | *
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| 39 | * Add or remove the debug sysctl. Return 0 on success or -errno on error.
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| 40 |
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| 41 | int ntfs_sysctl(int add)
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| 42 | {
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| 43 | if (add) {
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| 44 | sysctls_root_table = register_sysctl("fs/ntfs", ntfs_sysctls);
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| 45 | if (!sysctls_root_table)
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| 46 | return -ENOMEM;
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| 47 | } else {
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| 48 | unregister_sysctl_table(sysctls_root_table);
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| 49 | sysctls_root_table = NULL;
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| 50 | }
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| 51 | return 0;
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| 52 | }
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| 53 | #endif
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| 54 | #endif
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