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-rw-r--r--fs/ext4/ioctl.c156
1 files changed, 78 insertions, 78 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 12daa6869572..a567af161b06 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * linux/fs/ext3/ioctl.c 2 * linux/fs/ext4/ioctl.c
3 * 3 *
4 * Copyright (C) 1993, 1994, 1995 4 * Copyright (C) 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr) 5 * Remy Card (card@masi.ibp.fr)
@@ -10,30 +10,30 @@
10#include <linux/fs.h> 10#include <linux/fs.h>
11#include <linux/jbd.h> 11#include <linux/jbd.h>
12#include <linux/capability.h> 12#include <linux/capability.h>
13#include <linux/ext3_fs.h> 13#include <linux/ext4_fs.h>
14#include <linux/ext3_jbd.h> 14#include <linux/ext4_jbd.h>
15#include <linux/time.h> 15#include <linux/time.h>
16#include <linux/compat.h> 16#include <linux/compat.h>
17#include <linux/smp_lock.h> 17#include <linux/smp_lock.h>
18#include <asm/uaccess.h> 18#include <asm/uaccess.h>
19 19
20int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, 20int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
21 unsigned long arg) 21 unsigned long arg)
22{ 22{
23 struct ext3_inode_info *ei = EXT3_I(inode); 23 struct ext4_inode_info *ei = EXT4_I(inode);
24 unsigned int flags; 24 unsigned int flags;
25 unsigned short rsv_window_size; 25 unsigned short rsv_window_size;
26 26
27 ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg); 27 ext4_debug ("cmd = %u, arg = %lu\n", cmd, arg);
28 28
29 switch (cmd) { 29 switch (cmd) {
30 case EXT3_IOC_GETFLAGS: 30 case EXT4_IOC_GETFLAGS:
31 flags = ei->i_flags & EXT3_FL_USER_VISIBLE; 31 flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
32 return put_user(flags, (int __user *) arg); 32 return put_user(flags, (int __user *) arg);
33 case EXT3_IOC_SETFLAGS: { 33 case EXT4_IOC_SETFLAGS: {
34 handle_t *handle = NULL; 34 handle_t *handle = NULL;
35 int err; 35 int err;
36 struct ext3_iloc iloc; 36 struct ext4_iloc iloc;
37 unsigned int oldflags; 37 unsigned int oldflags;
38 unsigned int jflag; 38 unsigned int jflag;
39 39
@@ -47,13 +47,13 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
47 return -EFAULT; 47 return -EFAULT;
48 48
49 if (!S_ISDIR(inode->i_mode)) 49 if (!S_ISDIR(inode->i_mode))
50 flags &= ~EXT3_DIRSYNC_FL; 50 flags &= ~EXT4_DIRSYNC_FL;
51 51
52 mutex_lock(&inode->i_mutex); 52 mutex_lock(&inode->i_mutex);
53 oldflags = ei->i_flags; 53 oldflags = ei->i_flags;
54 54
55 /* The JOURNAL_DATA flag is modifiable only by root */ 55 /* The JOURNAL_DATA flag is modifiable only by root */
56 jflag = flags & EXT3_JOURNAL_DATA_FL; 56 jflag = flags & EXT4_JOURNAL_DATA_FL;
57 57
58 /* 58 /*
59 * The IMMUTABLE and APPEND_ONLY flags can only be changed by 59 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
@@ -61,7 +61,7 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
61 * 61 *
62 * This test looks nicer. Thanks to Pauline Middelink 62 * This test looks nicer. Thanks to Pauline Middelink
63 */ 63 */
64 if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) { 64 if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
65 if (!capable(CAP_LINUX_IMMUTABLE)) { 65 if (!capable(CAP_LINUX_IMMUTABLE)) {
66 mutex_unlock(&inode->i_mutex); 66 mutex_unlock(&inode->i_mutex);
67 return -EPERM; 67 return -EPERM;
@@ -72,7 +72,7 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
72 * The JOURNAL_DATA flag can only be changed by 72 * The JOURNAL_DATA flag can only be changed by
73 * the relevant capability. 73 * the relevant capability.
74 */ 74 */
75 if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL)) { 75 if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
76 if (!capable(CAP_SYS_RESOURCE)) { 76 if (!capable(CAP_SYS_RESOURCE)) {
77 mutex_unlock(&inode->i_mutex); 77 mutex_unlock(&inode->i_mutex);
78 return -EPERM; 78 return -EPERM;
@@ -80,44 +80,44 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
80 } 80 }
81 81
82 82
83 handle = ext3_journal_start(inode, 1); 83 handle = ext4_journal_start(inode, 1);
84 if (IS_ERR(handle)) { 84 if (IS_ERR(handle)) {
85 mutex_unlock(&inode->i_mutex); 85 mutex_unlock(&inode->i_mutex);
86 return PTR_ERR(handle); 86 return PTR_ERR(handle);
87 } 87 }
88 if (IS_SYNC(inode)) 88 if (IS_SYNC(inode))
89 handle->h_sync = 1; 89 handle->h_sync = 1;
90 err = ext3_reserve_inode_write(handle, inode, &iloc); 90 err = ext4_reserve_inode_write(handle, inode, &iloc);
91 if (err) 91 if (err)
92 goto flags_err; 92 goto flags_err;
93 93
94 flags = flags & EXT3_FL_USER_MODIFIABLE; 94 flags = flags & EXT4_FL_USER_MODIFIABLE;
95 flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE; 95 flags |= oldflags & ~EXT4_FL_USER_MODIFIABLE;
96 ei->i_flags = flags; 96 ei->i_flags = flags;
97 97
98 ext3_set_inode_flags(inode); 98 ext4_set_inode_flags(inode);
99 inode->i_ctime = CURRENT_TIME_SEC; 99 inode->i_ctime = CURRENT_TIME_SEC;
100 100
101 err = ext3_mark_iloc_dirty(handle, inode, &iloc); 101 err = ext4_mark_iloc_dirty(handle, inode, &iloc);
102flags_err: 102flags_err:
103 ext3_journal_stop(handle); 103 ext4_journal_stop(handle);
104 if (err) { 104 if (err) {
105 mutex_unlock(&inode->i_mutex); 105 mutex_unlock(&inode->i_mutex);
106 return err; 106 return err;
107 } 107 }
108 108
109 if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL)) 109 if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
110 err = ext3_change_inode_journal_flag(inode, jflag); 110 err = ext4_change_inode_journal_flag(inode, jflag);
111 mutex_unlock(&inode->i_mutex); 111 mutex_unlock(&inode->i_mutex);
112 return err; 112 return err;
113 } 113 }
114 case EXT3_IOC_GETVERSION: 114 case EXT4_IOC_GETVERSION:
115 case EXT3_IOC_GETVERSION_OLD: 115 case EXT4_IOC_GETVERSION_OLD:
116 return put_user(inode->i_generation, (int __user *) arg); 116 return put_user(inode->i_generation, (int __user *) arg);
117 case EXT3_IOC_SETVERSION: 117 case EXT4_IOC_SETVERSION:
118 case EXT3_IOC_SETVERSION_OLD: { 118 case EXT4_IOC_SETVERSION_OLD: {
119 handle_t *handle; 119 handle_t *handle;
120 struct ext3_iloc iloc; 120 struct ext4_iloc iloc;
121 __u32 generation; 121 __u32 generation;
122 int err; 122 int err;
123 123
@@ -128,20 +128,20 @@ flags_err:
128 if (get_user(generation, (int __user *) arg)) 128 if (get_user(generation, (int __user *) arg))
129 return -EFAULT; 129 return -EFAULT;
130 130
131 handle = ext3_journal_start(inode, 1); 131 handle = ext4_journal_start(inode, 1);
132 if (IS_ERR(handle)) 132 if (IS_ERR(handle))
133 return PTR_ERR(handle); 133 return PTR_ERR(handle);
134 err = ext3_reserve_inode_write(handle, inode, &iloc); 134 err = ext4_reserve_inode_write(handle, inode, &iloc);
135 if (err == 0) { 135 if (err == 0) {
136 inode->i_ctime = CURRENT_TIME_SEC; 136 inode->i_ctime = CURRENT_TIME_SEC;
137 inode->i_generation = generation; 137 inode->i_generation = generation;
138 err = ext3_mark_iloc_dirty(handle, inode, &iloc); 138 err = ext4_mark_iloc_dirty(handle, inode, &iloc);
139 } 139 }
140 ext3_journal_stop(handle); 140 ext4_journal_stop(handle);
141 return err; 141 return err;
142 } 142 }
143#ifdef CONFIG_JBD_DEBUG 143#ifdef CONFIG_JBD_DEBUG
144 case EXT3_IOC_WAIT_FOR_READONLY: 144 case EXT4_IOC_WAIT_FOR_READONLY:
145 /* 145 /*
146 * This is racy - by the time we're woken up and running, 146 * This is racy - by the time we're woken up and running,
147 * the superblock could be released. And the module could 147 * the superblock could be released. And the module could
@@ -155,16 +155,16 @@ flags_err:
155 int ret = 0; 155 int ret = 0;
156 156
157 set_current_state(TASK_INTERRUPTIBLE); 157 set_current_state(TASK_INTERRUPTIBLE);
158 add_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait); 158 add_wait_queue(&EXT4_SB(sb)->ro_wait_queue, &wait);
159 if (timer_pending(&EXT3_SB(sb)->turn_ro_timer)) { 159 if (timer_pending(&EXT4_SB(sb)->turn_ro_timer)) {
160 schedule(); 160 schedule();
161 ret = 1; 161 ret = 1;
162 } 162 }
163 remove_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait); 163 remove_wait_queue(&EXT4_SB(sb)->ro_wait_queue, &wait);
164 return ret; 164 return ret;
165 } 165 }
166#endif 166#endif
167 case EXT3_IOC_GETRSVSZ: 167 case EXT4_IOC_GETRSVSZ:
168 if (test_opt(inode->i_sb, RESERVATION) 168 if (test_opt(inode->i_sb, RESERVATION)
169 && S_ISREG(inode->i_mode) 169 && S_ISREG(inode->i_mode)
170 && ei->i_block_alloc_info) { 170 && ei->i_block_alloc_info) {
@@ -172,7 +172,7 @@ flags_err:
172 return put_user(rsv_window_size, (int __user *)arg); 172 return put_user(rsv_window_size, (int __user *)arg);
173 } 173 }
174 return -ENOTTY; 174 return -ENOTTY;
175 case EXT3_IOC_SETRSVSZ: { 175 case EXT4_IOC_SETRSVSZ: {
176 176
177 if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode)) 177 if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
178 return -ENOTTY; 178 return -ENOTTY;
@@ -186,8 +186,8 @@ flags_err:
186 if (get_user(rsv_window_size, (int __user *)arg)) 186 if (get_user(rsv_window_size, (int __user *)arg))
187 return -EFAULT; 187 return -EFAULT;
188 188
189 if (rsv_window_size > EXT3_MAX_RESERVE_BLOCKS) 189 if (rsv_window_size > EXT4_MAX_RESERVE_BLOCKS)
190 rsv_window_size = EXT3_MAX_RESERVE_BLOCKS; 190 rsv_window_size = EXT4_MAX_RESERVE_BLOCKS;
191 191
192 /* 192 /*
193 * need to allocate reservation structure for this inode 193 * need to allocate reservation structure for this inode
@@ -195,17 +195,17 @@ flags_err:
195 */ 195 */
196 mutex_lock(&ei->truncate_mutex); 196 mutex_lock(&ei->truncate_mutex);
197 if (!ei->i_block_alloc_info) 197 if (!ei->i_block_alloc_info)
198 ext3_init_block_alloc_info(inode); 198 ext4_init_block_alloc_info(inode);
199 199
200 if (ei->i_block_alloc_info){ 200 if (ei->i_block_alloc_info){
201 struct ext3_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node; 201 struct ext4_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
202 rsv->rsv_goal_size = rsv_window_size; 202 rsv->rsv_goal_size = rsv_window_size;
203 } 203 }
204 mutex_unlock(&ei->truncate_mutex); 204 mutex_unlock(&ei->truncate_mutex);
205 return 0; 205 return 0;
206 } 206 }
207 case EXT3_IOC_GROUP_EXTEND: { 207 case EXT4_IOC_GROUP_EXTEND: {
208 ext3_fsblk_t n_blocks_count; 208 ext4_fsblk_t n_blocks_count;
209 struct super_block *sb = inode->i_sb; 209 struct super_block *sb = inode->i_sb;
210 int err; 210 int err;
211 211
@@ -218,15 +218,15 @@ flags_err:
218 if (get_user(n_blocks_count, (__u32 __user *)arg)) 218 if (get_user(n_blocks_count, (__u32 __user *)arg))
219 return -EFAULT; 219 return -EFAULT;
220 220
221 err = ext3_group_extend(sb, EXT3_SB(sb)->s_es, n_blocks_count); 221 err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count);
222 journal_lock_updates(EXT3_SB(sb)->s_journal); 222 journal_lock_updates(EXT4_SB(sb)->s_journal);
223 journal_flush(EXT3_SB(sb)->s_journal); 223 journal_flush(EXT4_SB(sb)->s_journal);
224 journal_unlock_updates(EXT3_SB(sb)->s_journal); 224 journal_unlock_updates(EXT4_SB(sb)->s_journal);
225 225
226 return err; 226 return err;
227 } 227 }
228 case EXT3_IOC_GROUP_ADD: { 228 case EXT4_IOC_GROUP_ADD: {
229 struct ext3_new_group_data input; 229 struct ext4_new_group_data input;
230 struct super_block *sb = inode->i_sb; 230 struct super_block *sb = inode->i_sb;
231 int err; 231 int err;
232 232
@@ -236,14 +236,14 @@ flags_err:
236 if (IS_RDONLY(inode)) 236 if (IS_RDONLY(inode))
237 return -EROFS; 237 return -EROFS;
238 238
239 if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg, 239 if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg,
240 sizeof(input))) 240 sizeof(input)))
241 return -EFAULT; 241 return -EFAULT;
242 242
243 err = ext3_group_add(sb, &input); 243 err = ext4_group_add(sb, &input);
244 journal_lock_updates(EXT3_SB(sb)->s_journal); 244 journal_lock_updates(EXT4_SB(sb)->s_journal);
245 journal_flush(EXT3_SB(sb)->s_journal); 245 journal_flush(EXT4_SB(sb)->s_journal);
246 journal_unlock_updates(EXT3_SB(sb)->s_journal); 246 journal_unlock_updates(EXT4_SB(sb)->s_journal);
247 247
248 return err; 248 return err;
249 } 249 }
@@ -255,52 +255,52 @@ flags_err:
255} 255}
256 256
257#ifdef CONFIG_COMPAT 257#ifdef CONFIG_COMPAT
258long ext3_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 258long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
259{ 259{
260 struct inode *inode = file->f_dentry->d_inode; 260 struct inode *inode = file->f_dentry->d_inode;
261 int ret; 261 int ret;
262 262
263 /* These are just misnamed, they actually get/put from/to user an int */ 263 /* These are just misnamed, they actually get/put from/to user an int */
264 switch (cmd) { 264 switch (cmd) {
265 case EXT3_IOC32_GETFLAGS: 265 case EXT4_IOC32_GETFLAGS:
266 cmd = EXT3_IOC_GETFLAGS; 266 cmd = EXT4_IOC_GETFLAGS;
267 break; 267 break;
268 case EXT3_IOC32_SETFLAGS: 268 case EXT4_IOC32_SETFLAGS:
269 cmd = EXT3_IOC_SETFLAGS; 269 cmd = EXT4_IOC_SETFLAGS;
270 break; 270 break;
271 case EXT3_IOC32_GETVERSION: 271 case EXT4_IOC32_GETVERSION:
272 cmd = EXT3_IOC_GETVERSION; 272 cmd = EXT4_IOC_GETVERSION;
273 break; 273 break;
274 case EXT3_IOC32_SETVERSION: 274 case EXT4_IOC32_SETVERSION:
275 cmd = EXT3_IOC_SETVERSION; 275 cmd = EXT4_IOC_SETVERSION;
276 break; 276 break;
277 case EXT3_IOC32_GROUP_EXTEND: 277 case EXT4_IOC32_GROUP_EXTEND:
278 cmd = EXT3_IOC_GROUP_EXTEND; 278 cmd = EXT4_IOC_GROUP_EXTEND;
279 break; 279 break;
280 case EXT3_IOC32_GETVERSION_OLD: 280 case EXT4_IOC32_GETVERSION_OLD:
281 cmd = EXT3_IOC_GETVERSION_OLD; 281 cmd = EXT4_IOC_GETVERSION_OLD;
282 break; 282 break;
283 case EXT3_IOC32_SETVERSION_OLD: 283 case EXT4_IOC32_SETVERSION_OLD:
284 cmd = EXT3_IOC_SETVERSION_OLD; 284 cmd = EXT4_IOC_SETVERSION_OLD;
285 break; 285 break;
286#ifdef CONFIG_JBD_DEBUG 286#ifdef CONFIG_JBD_DEBUG
287 case EXT3_IOC32_WAIT_FOR_READONLY: 287 case EXT4_IOC32_WAIT_FOR_READONLY:
288 cmd = EXT3_IOC_WAIT_FOR_READONLY; 288 cmd = EXT4_IOC_WAIT_FOR_READONLY;
289 break; 289 break;
290#endif 290#endif
291 case EXT3_IOC32_GETRSVSZ: 291 case EXT4_IOC32_GETRSVSZ:
292 cmd = EXT3_IOC_GETRSVSZ; 292 cmd = EXT4_IOC_GETRSVSZ;
293 break; 293 break;
294 case EXT3_IOC32_SETRSVSZ: 294 case EXT4_IOC32_SETRSVSZ:
295 cmd = EXT3_IOC_SETRSVSZ; 295 cmd = EXT4_IOC_SETRSVSZ;
296 break; 296 break;
297 case EXT3_IOC_GROUP_ADD: 297 case EXT4_IOC_GROUP_ADD:
298 break; 298 break;
299 default: 299 default:
300 return -ENOIOCTLCMD; 300 return -ENOIOCTLCMD;
301 } 301 }
302 lock_kernel(); 302 lock_kernel();
303 ret = ext3_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg)); 303 ret = ext4_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
304 unlock_kernel(); 304 unlock_kernel();
305 return ret; 305 return ret;
306} 306}