Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * QNX4 file system, Linux implementation. | |
3 | * | |
4 | * Version : 0.2.1 | |
5 | * | |
6 | * Using parts of the xiafs filesystem. | |
7 | * | |
8 | * History : | |
9 | * | |
10 | * 01-06-1998 by Richard Frowijn : first release. | |
11 | * 20-06-1998 by Frank Denis : Linux 2.1.99+ support, boot signature, misc. | |
12 | * 30-06-1998 by Frank Denis : first step to write inodes. | |
13 | */ | |
14 | ||
1da177e4 | 15 | #include <linux/module.h> |
1da177e4 | 16 | #include <linux/init.h> |
964f5369 | 17 | #include <linux/slab.h> |
1da177e4 | 18 | #include <linux/highuid.h> |
1da177e4 LT |
19 | #include <linux/pagemap.h> |
20 | #include <linux/buffer_head.h> | |
79d25767 | 21 | #include <linux/writeback.h> |
964f5369 AV |
22 | #include <linux/statfs.h> |
23 | #include "qnx4.h" | |
1da177e4 LT |
24 | |
25 | #define QNX4_VERSION 4 | |
26 | #define QNX4_BMNAME ".bitmap" | |
27 | ||
ee9b6d61 | 28 | static const struct super_operations qnx4_sops; |
1da177e4 | 29 | |
1da177e4 LT |
30 | static void qnx4_put_super(struct super_block *sb); |
31 | static struct inode *qnx4_alloc_inode(struct super_block *sb); | |
32 | static void qnx4_destroy_inode(struct inode *inode); | |
1da177e4 | 33 | static int qnx4_remount(struct super_block *sb, int *flags, char *data); |
726c3342 | 34 | static int qnx4_statfs(struct dentry *, struct kstatfs *); |
1da177e4 | 35 | |
ee9b6d61 | 36 | static const struct super_operations qnx4_sops = |
1da177e4 LT |
37 | { |
38 | .alloc_inode = qnx4_alloc_inode, | |
39 | .destroy_inode = qnx4_destroy_inode, | |
1da177e4 LT |
40 | .put_super = qnx4_put_super, |
41 | .statfs = qnx4_statfs, | |
42 | .remount_fs = qnx4_remount, | |
1da177e4 LT |
43 | }; |
44 | ||
45 | static int qnx4_remount(struct super_block *sb, int *flags, char *data) | |
46 | { | |
47 | struct qnx4_sb_info *qs; | |
48 | ||
49 | qs = qnx4_sb(sb); | |
50 | qs->Version = QNX4_VERSION; | |
1da177e4 | 51 | *flags |= MS_RDONLY; |
1da177e4 LT |
52 | return 0; |
53 | } | |
54 | ||
55 | static struct buffer_head *qnx4_getblk(struct inode *inode, int nr, | |
56 | int create) | |
57 | { | |
58 | struct buffer_head *result = NULL; | |
59 | ||
60 | if ( nr >= 0 ) | |
61 | nr = qnx4_block_map( inode, nr ); | |
62 | if (nr) { | |
63 | result = sb_getblk(inode->i_sb, nr); | |
64 | return result; | |
65 | } | |
ca120b20 | 66 | return NULL; |
1da177e4 LT |
67 | } |
68 | ||
69 | struct buffer_head *qnx4_bread(struct inode *inode, int block, int create) | |
70 | { | |
71 | struct buffer_head *bh; | |
72 | ||
73 | bh = qnx4_getblk(inode, block, create); | |
74 | if (!bh || buffer_uptodate(bh)) { | |
75 | return bh; | |
76 | } | |
77 | ll_rw_block(READ, 1, &bh); | |
78 | wait_on_buffer(bh); | |
79 | if (buffer_uptodate(bh)) { | |
80 | return bh; | |
81 | } | |
82 | brelse(bh); | |
83 | ||
84 | return NULL; | |
85 | } | |
86 | ||
87 | static int qnx4_get_block( struct inode *inode, sector_t iblock, struct buffer_head *bh, int create ) | |
88 | { | |
89 | unsigned long phys; | |
90 | ||
891ddb95 | 91 | QNX4DEBUG((KERN_INFO "qnx4: qnx4_get_block inode=[%ld] iblock=[%ld]\n",inode->i_ino,iblock)); |
1da177e4 LT |
92 | |
93 | phys = qnx4_block_map( inode, iblock ); | |
94 | if ( phys ) { | |
95 | // logical block is before EOF | |
96 | map_bh(bh, inode->i_sb, phys); | |
1da177e4 LT |
97 | } |
98 | return 0; | |
99 | } | |
100 | ||
101 | unsigned long qnx4_block_map( struct inode *inode, long iblock ) | |
102 | { | |
103 | int ix; | |
104 | long offset, i_xblk; | |
105 | unsigned long block = 0; | |
106 | struct buffer_head *bh = NULL; | |
107 | struct qnx4_xblk *xblk = NULL; | |
108 | struct qnx4_inode_entry *qnx4_inode = qnx4_raw_inode(inode); | |
75043cb5 | 109 | u16 nxtnt = le16_to_cpu(qnx4_inode->di_num_xtnts); |
1da177e4 LT |
110 | |
111 | if ( iblock < le32_to_cpu(qnx4_inode->di_first_xtnt.xtnt_size) ) { | |
112 | // iblock is in the first extent. This is easy. | |
113 | block = le32_to_cpu(qnx4_inode->di_first_xtnt.xtnt_blk) + iblock - 1; | |
114 | } else { | |
115 | // iblock is beyond first extent. We have to follow the extent chain. | |
116 | i_xblk = le32_to_cpu(qnx4_inode->di_xblk); | |
117 | offset = iblock - le32_to_cpu(qnx4_inode->di_first_xtnt.xtnt_size); | |
118 | ix = 0; | |
119 | while ( --nxtnt > 0 ) { | |
120 | if ( ix == 0 ) { | |
121 | // read next xtnt block. | |
122 | bh = sb_bread(inode->i_sb, i_xblk - 1); | |
123 | if ( !bh ) { | |
891ddb95 | 124 | QNX4DEBUG((KERN_ERR "qnx4: I/O error reading xtnt block [%ld])\n", i_xblk - 1)); |
1da177e4 LT |
125 | return -EIO; |
126 | } | |
127 | xblk = (struct qnx4_xblk*)bh->b_data; | |
128 | if ( memcmp( xblk->xblk_signature, "IamXblk", 7 ) ) { | |
891ddb95 | 129 | QNX4DEBUG((KERN_ERR "qnx4: block at %ld is not a valid xtnt\n", qnx4_inode->i_xblk)); |
1da177e4 LT |
130 | return -EIO; |
131 | } | |
132 | } | |
133 | if ( offset < le32_to_cpu(xblk->xblk_xtnts[ix].xtnt_size) ) { | |
134 | // got it! | |
135 | block = le32_to_cpu(xblk->xblk_xtnts[ix].xtnt_blk) + offset - 1; | |
136 | break; | |
137 | } | |
138 | offset -= le32_to_cpu(xblk->xblk_xtnts[ix].xtnt_size); | |
139 | if ( ++ix >= xblk->xblk_num_xtnts ) { | |
140 | i_xblk = le32_to_cpu(xblk->xblk_next_xblk); | |
141 | ix = 0; | |
142 | brelse( bh ); | |
143 | bh = NULL; | |
144 | } | |
145 | } | |
146 | if ( bh ) | |
147 | brelse( bh ); | |
148 | } | |
149 | ||
891ddb95 | 150 | QNX4DEBUG((KERN_INFO "qnx4: mapping block %ld of inode %ld = %ld\n",iblock,inode->i_ino,block)); |
1da177e4 LT |
151 | return block; |
152 | } | |
153 | ||
726c3342 | 154 | static int qnx4_statfs(struct dentry *dentry, struct kstatfs *buf) |
1da177e4 | 155 | { |
726c3342 | 156 | struct super_block *sb = dentry->d_sb; |
5b76dc06 | 157 | u64 id = huge_encode_dev(sb->s_bdev->bd_dev); |
726c3342 | 158 | |
1da177e4 LT |
159 | buf->f_type = sb->s_magic; |
160 | buf->f_bsize = sb->s_blocksize; | |
161 | buf->f_blocks = le32_to_cpu(qnx4_sb(sb)->BitMap->di_size) * 8; | |
162 | buf->f_bfree = qnx4_count_free_blocks(sb); | |
163 | buf->f_bavail = buf->f_bfree; | |
164 | buf->f_namelen = QNX4_NAME_MAX; | |
5b76dc06 CL |
165 | buf->f_fsid.val[0] = (u32)id; |
166 | buf->f_fsid.val[1] = (u32)(id >> 32); | |
1da177e4 | 167 | |
1da177e4 LT |
168 | return 0; |
169 | } | |
170 | ||
171 | /* | |
172 | * Check the root directory of the filesystem to make sure | |
173 | * it really _is_ a qnx4 filesystem, and to check the size | |
174 | * of the directory entry. | |
175 | */ | |
176 | static const char *qnx4_checkroot(struct super_block *sb) | |
177 | { | |
178 | struct buffer_head *bh; | |
179 | struct qnx4_inode_entry *rootdir; | |
180 | int rd, rl; | |
181 | int i, j; | |
182 | int found = 0; | |
183 | ||
184 | if (*(qnx4_sb(sb)->sb->RootDir.di_fname) != '/') { | |
185 | return "no qnx4 filesystem (no root dir)."; | |
186 | } else { | |
891ddb95 | 187 | QNX4DEBUG((KERN_NOTICE "QNX4 filesystem found on dev %s.\n", sb->s_id)); |
1da177e4 LT |
188 | rd = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_blk) - 1; |
189 | rl = le32_to_cpu(qnx4_sb(sb)->sb->RootDir.di_first_xtnt.xtnt_size); | |
190 | for (j = 0; j < rl; j++) { | |
191 | bh = sb_bread(sb, rd + j); /* root dir, first block */ | |
192 | if (bh == NULL) { | |
193 | return "unable to read root entry."; | |
194 | } | |
195 | for (i = 0; i < QNX4_INODES_PER_BLOCK; i++) { | |
196 | rootdir = (struct qnx4_inode_entry *) (bh->b_data + i * QNX4_DIR_ENTRY_SIZE); | |
1aab323e AV |
197 | QNX4DEBUG((KERN_INFO "rootdir entry found : [%s]\n", rootdir->di_fname)); |
198 | if (!strcmp(rootdir->di_fname, | |
199 | QNX4_BMNAME)) { | |
200 | found = 1; | |
201 | qnx4_sb(sb)->BitMap = kmemdup(rootdir, | |
202 | sizeof(struct qnx4_inode_entry), | |
203 | GFP_KERNEL); | |
204 | if (!qnx4_sb(sb)->BitMap) { | |
205 | brelse (bh); | |
206 | return "not enough memory for bitmap inode"; | |
207 | }/* keep bitmap inode known */ | |
208 | break; | |
1da177e4 LT |
209 | } |
210 | } | |
211 | brelse(bh); | |
212 | if (found != 0) { | |
213 | break; | |
214 | } | |
215 | } | |
216 | if (found == 0) { | |
217 | return "bitmap file not found."; | |
218 | } | |
219 | } | |
220 | return NULL; | |
221 | } | |
222 | ||
223 | static int qnx4_fill_super(struct super_block *s, void *data, int silent) | |
224 | { | |
225 | struct buffer_head *bh; | |
226 | struct inode *root; | |
227 | const char *errmsg; | |
228 | struct qnx4_sb_info *qs; | |
2b7e5bcb | 229 | int ret = -EINVAL; |
1da177e4 | 230 | |
f8314dc6 | 231 | qs = kzalloc(sizeof(struct qnx4_sb_info), GFP_KERNEL); |
073c2141 | 232 | if (!qs) |
1da177e4 LT |
233 | return -ENOMEM; |
234 | s->s_fs_info = qs; | |
1da177e4 LT |
235 | |
236 | sb_set_blocksize(s, QNX4_BLOCK_SIZE); | |
237 | ||
238 | /* Check the superblock signature. Since the qnx4 code is | |
239 | dangerous, we should leave as quickly as possible | |
240 | if we don't belong here... */ | |
241 | bh = sb_bread(s, 1); | |
242 | if (!bh) { | |
891ddb95 | 243 | printk(KERN_ERR "qnx4: unable to read the superblock\n"); |
1da177e4 LT |
244 | goto outnobh; |
245 | } | |
75043cb5 | 246 | if ( le32_to_cpup((__le32*) bh->b_data) != QNX4_SUPER_MAGIC ) { |
1da177e4 | 247 | if (!silent) |
891ddb95 | 248 | printk(KERN_ERR "qnx4: wrong fsid in superblock.\n"); |
1da177e4 LT |
249 | goto out; |
250 | } | |
251 | s->s_op = &qnx4_sops; | |
252 | s->s_magic = QNX4_SUPER_MAGIC; | |
1da177e4 | 253 | s->s_flags |= MS_RDONLY; /* Yup, read-only yet */ |
1da177e4 LT |
254 | qnx4_sb(s)->sb_buf = bh; |
255 | qnx4_sb(s)->sb = (struct qnx4_super_block *) bh->b_data; | |
256 | ||
257 | ||
258 | /* check before allocating dentries, inodes, .. */ | |
259 | errmsg = qnx4_checkroot(s); | |
260 | if (errmsg != NULL) { | |
261 | if (!silent) | |
891ddb95 | 262 | printk(KERN_ERR "qnx4: %s\n", errmsg); |
1da177e4 LT |
263 | goto out; |
264 | } | |
265 | ||
266 | /* does root not have inode number QNX4_ROOT_INO ?? */ | |
2b7e5bcb DH |
267 | root = qnx4_iget(s, QNX4_ROOT_INO * QNX4_INODES_PER_BLOCK); |
268 | if (IS_ERR(root)) { | |
891ddb95 | 269 | printk(KERN_ERR "qnx4: get inode failed\n"); |
2b7e5bcb | 270 | ret = PTR_ERR(root); |
1da177e4 LT |
271 | goto out; |
272 | } | |
273 | ||
2b7e5bcb | 274 | ret = -ENOMEM; |
1da177e4 LT |
275 | s->s_root = d_alloc_root(root); |
276 | if (s->s_root == NULL) | |
277 | goto outi; | |
278 | ||
279 | brelse(bh); | |
1da177e4 LT |
280 | return 0; |
281 | ||
282 | outi: | |
283 | iput(root); | |
284 | out: | |
285 | brelse(bh); | |
286 | outnobh: | |
287 | kfree(qs); | |
288 | s->s_fs_info = NULL; | |
2b7e5bcb | 289 | return ret; |
1da177e4 LT |
290 | } |
291 | ||
292 | static void qnx4_put_super(struct super_block *sb) | |
293 | { | |
294 | struct qnx4_sb_info *qs = qnx4_sb(sb); | |
295 | kfree( qs->BitMap ); | |
296 | kfree( qs ); | |
297 | sb->s_fs_info = NULL; | |
298 | return; | |
299 | } | |
300 | ||
301 | static int qnx4_writepage(struct page *page, struct writeback_control *wbc) | |
302 | { | |
303 | return block_write_full_page(page,qnx4_get_block, wbc); | |
304 | } | |
f8706184 | 305 | |
1da177e4 LT |
306 | static int qnx4_readpage(struct file *file, struct page *page) |
307 | { | |
308 | return block_read_full_page(page,qnx4_get_block); | |
309 | } | |
f8706184 NP |
310 | |
311 | static int qnx4_write_begin(struct file *file, struct address_space *mapping, | |
312 | loff_t pos, unsigned len, unsigned flags, | |
313 | struct page **pagep, void **fsdata) | |
1da177e4 | 314 | { |
f8706184 | 315 | struct qnx4_inode_info *qnx4_inode = qnx4_i(mapping->host); |
282dc178 CH |
316 | int ret; |
317 | ||
f8706184 | 318 | *pagep = NULL; |
282dc178 | 319 | ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata, |
f8706184 NP |
320 | qnx4_get_block, |
321 | &qnx4_inode->mmu_private); | |
282dc178 CH |
322 | if (unlikely(ret)) { |
323 | loff_t isize = mapping->host->i_size; | |
324 | if (pos + len > isize) | |
325 | vmtruncate(mapping->host, isize); | |
326 | } | |
327 | ||
328 | return ret; | |
1da177e4 LT |
329 | } |
330 | static sector_t qnx4_bmap(struct address_space *mapping, sector_t block) | |
331 | { | |
332 | return generic_block_bmap(mapping,block,qnx4_get_block); | |
333 | } | |
f5e54d6e | 334 | static const struct address_space_operations qnx4_aops = { |
1da177e4 LT |
335 | .readpage = qnx4_readpage, |
336 | .writepage = qnx4_writepage, | |
f8706184 NP |
337 | .write_begin = qnx4_write_begin, |
338 | .write_end = generic_write_end, | |
1da177e4 LT |
339 | .bmap = qnx4_bmap |
340 | }; | |
341 | ||
2b7e5bcb | 342 | struct inode *qnx4_iget(struct super_block *sb, unsigned long ino) |
1da177e4 LT |
343 | { |
344 | struct buffer_head *bh; | |
345 | struct qnx4_inode_entry *raw_inode; | |
2b7e5bcb DH |
346 | int block; |
347 | struct qnx4_inode_entry *qnx4_inode; | |
348 | struct inode *inode; | |
1da177e4 | 349 | |
2b7e5bcb DH |
350 | inode = iget_locked(sb, ino); |
351 | if (!inode) | |
352 | return ERR_PTR(-ENOMEM); | |
353 | if (!(inode->i_state & I_NEW)) | |
354 | return inode; | |
355 | ||
356 | qnx4_inode = qnx4_raw_inode(inode); | |
1da177e4 LT |
357 | inode->i_mode = 0; |
358 | ||
891ddb95 | 359 | QNX4DEBUG((KERN_INFO "reading inode : [%d]\n", ino)); |
1da177e4 | 360 | if (!ino) { |
2b7e5bcb DH |
361 | printk(KERN_ERR "qnx4: bad inode number on dev %s: %lu is " |
362 | "out of range\n", | |
1da177e4 | 363 | sb->s_id, ino); |
2b7e5bcb DH |
364 | iget_failed(inode); |
365 | return ERR_PTR(-EIO); | |
1da177e4 LT |
366 | } |
367 | block = ino / QNX4_INODES_PER_BLOCK; | |
368 | ||
369 | if (!(bh = sb_bread(sb, block))) { | |
891ddb95 | 370 | printk(KERN_ERR "qnx4: major problem: unable to read inode from dev " |
1da177e4 | 371 | "%s\n", sb->s_id); |
2b7e5bcb DH |
372 | iget_failed(inode); |
373 | return ERR_PTR(-EIO); | |
1da177e4 LT |
374 | } |
375 | raw_inode = ((struct qnx4_inode_entry *) bh->b_data) + | |
376 | (ino % QNX4_INODES_PER_BLOCK); | |
377 | ||
378 | inode->i_mode = le16_to_cpu(raw_inode->di_mode); | |
379 | inode->i_uid = (uid_t)le16_to_cpu(raw_inode->di_uid); | |
380 | inode->i_gid = (gid_t)le16_to_cpu(raw_inode->di_gid); | |
bfe86848 | 381 | set_nlink(inode, le16_to_cpu(raw_inode->di_nlink)); |
1da177e4 LT |
382 | inode->i_size = le32_to_cpu(raw_inode->di_size); |
383 | inode->i_mtime.tv_sec = le32_to_cpu(raw_inode->di_mtime); | |
384 | inode->i_mtime.tv_nsec = 0; | |
385 | inode->i_atime.tv_sec = le32_to_cpu(raw_inode->di_atime); | |
386 | inode->i_atime.tv_nsec = 0; | |
387 | inode->i_ctime.tv_sec = le32_to_cpu(raw_inode->di_ctime); | |
388 | inode->i_ctime.tv_nsec = 0; | |
389 | inode->i_blocks = le32_to_cpu(raw_inode->di_first_xtnt.xtnt_size); | |
1da177e4 LT |
390 | |
391 | memcpy(qnx4_inode, raw_inode, QNX4_DIR_ENTRY_SIZE); | |
392 | if (S_ISREG(inode->i_mode)) { | |
945ffe54 | 393 | inode->i_fop = &generic_ro_fops; |
1da177e4 LT |
394 | inode->i_mapping->a_ops = &qnx4_aops; |
395 | qnx4_i(inode)->mmu_private = inode->i_size; | |
396 | } else if (S_ISDIR(inode->i_mode)) { | |
397 | inode->i_op = &qnx4_dir_inode_operations; | |
398 | inode->i_fop = &qnx4_dir_operations; | |
399 | } else if (S_ISLNK(inode->i_mode)) { | |
400 | inode->i_op = &page_symlink_inode_operations; | |
401 | inode->i_mapping->a_ops = &qnx4_aops; | |
402 | qnx4_i(inode)->mmu_private = inode->i_size; | |
2b7e5bcb DH |
403 | } else { |
404 | printk(KERN_ERR "qnx4: bad inode %lu on dev %s\n", | |
405 | ino, sb->s_id); | |
406 | iget_failed(inode); | |
407 | brelse(bh); | |
408 | return ERR_PTR(-EIO); | |
409 | } | |
1da177e4 | 410 | brelse(bh); |
2b7e5bcb DH |
411 | unlock_new_inode(inode); |
412 | return inode; | |
1da177e4 LT |
413 | } |
414 | ||
e18b890b | 415 | static struct kmem_cache *qnx4_inode_cachep; |
1da177e4 LT |
416 | |
417 | static struct inode *qnx4_alloc_inode(struct super_block *sb) | |
418 | { | |
419 | struct qnx4_inode_info *ei; | |
e94b1766 | 420 | ei = kmem_cache_alloc(qnx4_inode_cachep, GFP_KERNEL); |
1da177e4 LT |
421 | if (!ei) |
422 | return NULL; | |
423 | return &ei->vfs_inode; | |
424 | } | |
425 | ||
fa0d7e3d | 426 | static void qnx4_i_callback(struct rcu_head *head) |
1da177e4 | 427 | { |
fa0d7e3d | 428 | struct inode *inode = container_of(head, struct inode, i_rcu); |
1da177e4 LT |
429 | kmem_cache_free(qnx4_inode_cachep, qnx4_i(inode)); |
430 | } | |
431 | ||
fa0d7e3d NP |
432 | static void qnx4_destroy_inode(struct inode *inode) |
433 | { | |
434 | call_rcu(&inode->i_rcu, qnx4_i_callback); | |
435 | } | |
436 | ||
51cc5068 | 437 | static void init_once(void *foo) |
1da177e4 LT |
438 | { |
439 | struct qnx4_inode_info *ei = (struct qnx4_inode_info *) foo; | |
440 | ||
a35afb83 | 441 | inode_init_once(&ei->vfs_inode); |
1da177e4 LT |
442 | } |
443 | ||
444 | static int init_inodecache(void) | |
445 | { | |
446 | qnx4_inode_cachep = kmem_cache_create("qnx4_inode_cache", | |
447 | sizeof(struct qnx4_inode_info), | |
fffb60f9 PJ |
448 | 0, (SLAB_RECLAIM_ACCOUNT| |
449 | SLAB_MEM_SPREAD), | |
20c2df83 | 450 | init_once); |
1da177e4 LT |
451 | if (qnx4_inode_cachep == NULL) |
452 | return -ENOMEM; | |
453 | return 0; | |
454 | } | |
455 | ||
456 | static void destroy_inodecache(void) | |
457 | { | |
1a1d92c1 | 458 | kmem_cache_destroy(qnx4_inode_cachep); |
1da177e4 LT |
459 | } |
460 | ||
152a0836 AV |
461 | static struct dentry *qnx4_mount(struct file_system_type *fs_type, |
462 | int flags, const char *dev_name, void *data) | |
1da177e4 | 463 | { |
152a0836 | 464 | return mount_bdev(fs_type, flags, dev_name, data, qnx4_fill_super); |
1da177e4 LT |
465 | } |
466 | ||
467 | static struct file_system_type qnx4_fs_type = { | |
468 | .owner = THIS_MODULE, | |
469 | .name = "qnx4", | |
152a0836 | 470 | .mount = qnx4_mount, |
1da177e4 LT |
471 | .kill_sb = kill_block_super, |
472 | .fs_flags = FS_REQUIRES_DEV, | |
473 | }; | |
474 | ||
475 | static int __init init_qnx4_fs(void) | |
476 | { | |
477 | int err; | |
478 | ||
479 | err = init_inodecache(); | |
480 | if (err) | |
481 | return err; | |
482 | ||
483 | err = register_filesystem(&qnx4_fs_type); | |
484 | if (err) { | |
485 | destroy_inodecache(); | |
486 | return err; | |
487 | } | |
488 | ||
891ddb95 | 489 | printk(KERN_INFO "QNX4 filesystem 0.2.3 registered.\n"); |
1da177e4 LT |
490 | return 0; |
491 | } | |
492 | ||
493 | static void __exit exit_qnx4_fs(void) | |
494 | { | |
495 | unregister_filesystem(&qnx4_fs_type); | |
496 | destroy_inodecache(); | |
497 | } | |
498 | ||
499 | module_init(init_qnx4_fs) | |
500 | module_exit(exit_qnx4_fs) | |
501 | MODULE_LICENSE("GPL"); | |
502 |