1 /*
2 * linux/fs/minix/inode.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 *
6 * Copyright (C) 1996 Gertjan van Wingerde
7 * Minix V2 fs support.
8 *
9 * Modified for 680x0 by Andreas Schwab
10 * Updated to filesystem version 3 by Daniel Aragones
11 */
12
13 #include <linux/module.h>
14 #include "minix.h"
15 #include <linux/buffer_head.h>
16 #include <linux/slab.h>
17 #include <linux/init.h>
18 #include <linux/highuid.h>
19 #include <linux/vfs.h>
20
21 static int minix_write_inode(struct inode * inode, int wait);
22 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf);
23 static int minix_remount (struct super_block * sb, int * flags, char * data);
24
25 static void minix_delete_inode(struct inode *inode)
26 {
27 truncate_inode_pages(&inode->i_data, 0);
28 inode->i_size = 0;
29 minix_truncate(inode);
30 minix_free_inode(inode);
31 }
32
33 static void minix_put_super(struct super_block *sb)
34 {
35 int i;
36 struct minix_sb_info *sbi = minix_sb(sb);
37
38 if (!(sb->s_flags & MS_RDONLY)) {
39 if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */
40 sbi->s_ms->s_state = sbi->s_mount_state;
41 mark_buffer_dirty(sbi->s_sbh);
42 }
43 for (i = 0; i < sbi->s_imap_blocks; i++)
44 brelse(sbi->s_imap[i]);
45 for (i = 0; i < sbi->s_zmap_blocks; i++)
46 brelse(sbi->s_zmap[i]);
47 brelse (sbi->s_sbh);
48 kfree(sbi->s_imap);
49 sb->s_fs_info = NULL;
50 kfree(sbi);
51 }
52
53 static struct kmem_cache * minix_inode_cachep;
54
55 static struct inode *minix_alloc_inode(struct super_block *sb)
56 {
57 struct minix_inode_info *ei;
58 ei = (struct minix_inode_info *)kmem_cache_alloc(minix_inode_cachep, GFP_KERNEL);
59 if (!ei)
60 return NULL;
61 return &ei->vfs_inode;
62 }
63
64 static void minix_destroy_inode(struct inode *inode)
65 {
66 kmem_cache_free(minix_inode_cachep, minix_i(inode));
67 }
68
69 static void init_once(void *foo)
70 {
71 struct minix_inode_info *ei = (struct minix_inode_info *) foo;
72
73 inode_init_once(&ei->vfs_inode);
74 }
75
76 static int init_inodecache(void)
77 {
78 minix_inode_cachep = kmem_cache_create("minix_inode_cache",
79 sizeof(struct minix_inode_info),
80 0, (SLAB_RECLAIM_ACCOUNT|
81 SLAB_MEM_SPREAD),
82 init_once);
83 if (minix_inode_cachep == NULL)
84 return -ENOMEM;
85 return 0;
86 }
87
88 static void destroy_inodecache(void)
89 {
90 kmem_cache_destroy(minix_inode_cachep);
91 }
92
93 static const struct super_operations minix_sops = {
94 .alloc_inode = minix_alloc_inode,
95 .destroy_inode = minix_destroy_inode,
96 .write_inode = minix_write_inode,
97 .delete_inode = minix_delete_inode,
98 .put_super = minix_put_super,
99 .statfs = minix_statfs,
100 .remount_fs = minix_remount,
101 };
102
103 static int minix_remount (struct super_block * sb, int * flags, char * data)
104 {
105 struct minix_sb_info * sbi = minix_sb(sb);
106 struct minix_super_block * ms;
107
108 ms = sbi->s_ms;
109 if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
110 return 0;
111 if (*flags & MS_RDONLY) {
112 if (ms->s_state & MINIX_VALID_FS ||
113 !(sbi->s_mount_state & MINIX_VALID_FS))
114 return 0;
115 /* Mounting a rw partition read-only. */
116 if (sbi->s_version != MINIX_V3)
117 ms->s_state = sbi->s_mount_state;
118 mark_buffer_dirty(sbi->s_sbh);
119 } else {
120 /* Mount a partition which is read-only, read-write. */
121 if (sbi->s_version != MINIX_V3) {
122 sbi->s_mount_state = ms->s_state;
123 ms->s_state &= ~MINIX_VALID_FS;
124 } else {
125 sbi->s_mount_state = MINIX_VALID_FS;
126 }
127 mark_buffer_dirty(sbi->s_sbh);
128
129 if (!(sbi->s_mount_state & MINIX_VALID_FS))
130 printk("MINIX-fs warning: remounting unchecked fs, "
131 "running fsck is recommended\n");
132 else if ((sbi->s_mount_state & MINIX_ERROR_FS))
133 printk("MINIX-fs warning: remounting fs with errors, "
134 "running fsck is recommended\n");
135 }
136 return 0;
137 }
138
139 static int minix_fill_super(struct super_block *s, void *data, int silent)
140 {
141 struct buffer_head *bh;
142 struct buffer_head **map;
143 struct minix_super_block *ms;
144 struct minix3_super_block *m3s = NULL;
145 unsigned long i, block;
146 struct inode *root_inode;
147 struct minix_sb_info *sbi;
148 int ret = -EINVAL;
149
150 sbi = kzalloc(sizeof(struct minix_sb_info), GFP_KERNEL);
151 if (!sbi)
152 return -ENOMEM;
153 s->s_fs_info = sbi;
154
155 BUILD_BUG_ON(32 != sizeof (struct minix_inode));
156 BUILD_BUG_ON(64 != sizeof(struct minix2_inode));
157
158 if (!sb_set_blocksize(s, BLOCK_SIZE))
159 goto out_bad_hblock;
160
161 if (!(bh = sb_bread(s, 1)))
162 goto out_bad_sb;
163
164 ms = (struct minix_super_block *) bh->b_data;
165 sbi->s_ms = ms;
166 sbi->s_sbh = bh;
167 sbi->s_mount_state = ms->s_state;
168 sbi->s_ninodes = ms->s_ninodes;
169 sbi->s_nzones = ms->s_nzones;
170 sbi->s_imap_blocks = ms->s_imap_blocks;
171 sbi->s_zmap_blocks = ms->s_zmap_blocks;
172 sbi->s_firstdatazone = ms->s_firstdatazone;
173 sbi->s_log_zone_size = ms->s_log_zone_size;
174 sbi->s_max_size = ms->s_max_size;
175 s->s_magic = ms->s_magic;
176 if (s->s_magic == MINIX_SUPER_MAGIC) {
177 sbi->s_version = MINIX_V1;
178 sbi->s_dirsize = 16;
179 sbi->s_namelen = 14;
180 sbi->s_link_max = MINIX_LINK_MAX;
181 } else if (s->s_magic == MINIX_SUPER_MAGIC2) {
182 sbi->s_version = MINIX_V1;
183 sbi->s_dirsize = 32;
184 sbi->s_namelen = 30;
185 sbi->s_link_max = MINIX_LINK_MAX;
186 } else if (s->s_magic == MINIX2_SUPER_MAGIC) {
187 sbi->s_version = MINIX_V2;
188 sbi->s_nzones = ms->s_zones;
189 sbi->s_dirsize = 16;
190 sbi->s_namelen = 14;
191 sbi->s_link_max = MINIX2_LINK_MAX;
192 } else if (s->s_magic == MINIX2_SUPER_MAGIC2) {
193 sbi->s_version = MINIX_V2;
194 sbi->s_nzones = ms->s_zones;
195 sbi->s_dirsize = 32;
196 sbi->s_namelen = 30;
197 sbi->s_link_max = MINIX2_LINK_MAX;
198 } else if ( *(__u16 *)(bh->b_data + 24) == MINIX3_SUPER_MAGIC) {
199 m3s = (struct minix3_super_block *) bh->b_data;
200 s->s_magic = m3s->s_magic;
201 sbi->s_imap_blocks = m3s->s_imap_blocks;
202 sbi->s_zmap_blocks = m3s->s_zmap_blocks;
203 sbi->s_firstdatazone = m3s->s_firstdatazone;
204 sbi->s_log_zone_size = m3s->s_log_zone_size;
205 sbi->s_max_size = m3s->s_max_size;
206 sbi->s_ninodes = m3s->s_ninodes;
207 sbi->s_nzones = m3s->s_zones;
208 sbi->s_dirsize = 64;
209 sbi->s_namelen = 60;
210 sbi->s_version = MINIX_V3;
211 sbi->s_link_max = MINIX2_LINK_MAX;
212 sbi->s_mount_state = MINIX_VALID_FS;
213 sb_set_blocksize(s, m3s->s_blocksize);
214 } else
215 goto out_no_fs;
216
217 /*
218 * Allocate the buffer map to keep the superblock small.
219 */
220 if (sbi->s_imap_blocks == 0 || sbi->s_zmap_blocks == 0)
221 goto out_illegal_sb;
222 i = (sbi->s_imap_blocks + sbi->s_zmap_blocks) * sizeof(bh);
223 map = kzalloc(i, GFP_KERNEL);
224 if (!map)
225 goto out_no_map;
226 sbi->s_imap = &map[0];
227 sbi->s_zmap = &map[sbi->s_imap_blocks];
228
229 block=2;
230 for (i=0 ; i < sbi->s_imap_blocks ; i++) {
231 if (!(sbi->s_imap[i]=sb_bread(s, block)))
232 goto out_no_bitmap;
233 block++;
234 }
235 for (i=0 ; i < sbi->s_zmap_blocks ; i++) {
236 if (!(sbi->s_zmap[i]=sb_bread(s, block)))
237 goto out_no_bitmap;
238 block++;
239 }
240
241 minix_set_bit(0,sbi->s_imap[0]->b_data);
242 minix_set_bit(0,sbi->s_zmap[0]->b_data);
243
244 /* set up enough so that it can read an inode */
245 s->s_op = &minix_sops;
246 root_inode = minix_iget(s, MINIX_ROOT_INO);
247 if (IS_ERR(root_inode)) {
248 ret = PTR_ERR(root_inode);
249 goto out_no_root;
250 }
251
252 ret = -ENOMEM;
253 s->s_root = d_alloc_root(root_inode);
254 if (!s->s_root)
255 goto out_iput;
256
257 if (!(s->s_flags & MS_RDONLY)) {
258 if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */
259 ms->s_state &= ~MINIX_VALID_FS;
260 mark_buffer_dirty(bh);
261 }
262 if (!(sbi->s_mount_state & MINIX_VALID_FS))
263 printk("MINIX-fs: mounting unchecked file system, "
264 "running fsck is recommended\n");
265 else if (sbi->s_mount_state & MINIX_ERROR_FS)
266 printk("MINIX-fs: mounting file system with errors, "
267 "running fsck is recommended\n");
268 return 0;
269
270 out_iput:
271 iput(root_inode);
272 goto out_freemap;
273
274 out_no_root:
275 if (!silent)
276 printk("MINIX-fs: get root inode failed\n");
277 goto out_freemap;
278
279 out_no_bitmap:
280 printk("MINIX-fs: bad superblock or unable to read bitmaps\n");
281 out_freemap:
282 for (i = 0; i < sbi->s_imap_blocks; i++)
283 brelse(sbi->s_imap[i]);
284 for (i = 0; i < sbi->s_zmap_blocks; i++)
285 brelse(sbi->s_zmap[i]);
286 kfree(sbi->s_imap);
287 goto out_release;
288
289 out_no_map:
290 ret = -ENOMEM;
291 if (!silent)
292 printk("MINIX-fs: can't allocate map\n");
293 goto out_release;
294
295 out_illegal_sb:
296 if (!silent)
297 printk("MINIX-fs: bad superblock\n");
298 goto out_release;
299
300 out_no_fs:
301 if (!silent)
302 printk("VFS: Can't find a Minix filesystem V1 | V2 | V3 "
303 "on device %s.\n", s->s_id);
304 out_release:
305 brelse(bh);
306 goto out;
307
308 out_bad_hblock:
309 printk("MINIX-fs: blocksize too small for device\n");
310 goto out;
311
312 out_bad_sb:
313 printk("MINIX-fs: unable to read superblock\n");
314 out:
315 s->s_fs_info = NULL;
316 kfree(sbi);
317 return ret;
318 }
319
320 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf)
321 {
322 struct super_block *sb = dentry->d_sb;
323 struct minix_sb_info *sbi = minix_sb(sb);
324 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
325 buf->f_type = sb->s_magic;
326 buf->f_bsize = sb->s_blocksize;
327 buf->f_blocks = (sbi->s_nzones - sbi->s_firstdatazone) << sbi->s_log_zone_size;
328 buf->f_bfree = minix_count_free_blocks(sbi);
329 buf->f_bavail = buf->f_bfree;
330 buf->f_files = sbi->s_ninodes;
331 buf->f_ffree = minix_count_free_inodes(sbi);
332 buf->f_namelen = sbi->s_namelen;
333 buf->f_fsid.val[0] = (u32)id;
334 buf->f_fsid.val[1] = (u32)(id >> 32);
335
336 return 0;
337 }
338
339 static int minix_get_block(struct inode *inode, sector_t block,
340 struct buffer_head *bh_result, int create)
341 {
342 if (INODE_VERSION(inode) == MINIX_V1)
343 return V1_minix_get_block(inode, block, bh_result, create);
344 else
345 return V2_minix_get_block(inode, block, bh_result, create);
346 }
347
348 static int minix_writepage(struct page *page, struct writeback_control *wbc)
349 {
350 return block_write_full_page(page, minix_get_block, wbc);
351 }
352
353 static int minix_readpage(struct file *file, struct page *page)
354 {
355 return block_read_full_page(page,minix_get_block);
356 }
357
358 int __minix_write_begin(struct file *file, struct address_space *mapping,
359 loff_t pos, unsigned len, unsigned flags,
360 struct page **pagep, void **fsdata)
361 {
362 return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
363 minix_get_block);
364 }
365
366 static int minix_write_begin(struct file *file, struct address_space *mapping,
367 loff_t pos, unsigned len, unsigned flags,
368 struct page **pagep, void **fsdata)
369 {
370 *pagep = NULL;
371 return __minix_write_begin(file, mapping, pos, len, flags, pagep, fsdata);
372 }
373
374 static sector_t minix_bmap(struct address_space *mapping, sector_t block)
375 {
376 return generic_block_bmap(mapping,block,minix_get_block);
377 }
378
379 static const struct address_space_operations minix_aops = {
380 .readpage = minix_readpage,
381 .writepage = minix_writepage,
382 .sync_page = block_sync_page,
383 .write_begin = minix_write_begin,
384 .write_end = generic_write_end,
385 .bmap = minix_bmap
386 };
387
388 static const struct inode_operations minix_symlink_inode_operations = {
389 .readlink = generic_readlink,
390 .follow_link = page_follow_link_light,
391 .put_link = page_put_link,
392 .getattr = minix_getattr,
393 };
394
395 void minix_set_inode(struct inode *inode, dev_t rdev)
396 {
397 if (S_ISREG(inode->i_mode)) {
398 inode->i_op = &minix_file_inode_operations;
399 inode->i_fop = &minix_file_operations;
400 inode->i_mapping->a_ops = &minix_aops;
401 } else if (S_ISDIR(inode->i_mode)) {
402 inode->i_op = &minix_dir_inode_operations;
403 inode->i_fop = &minix_dir_operations;
404 inode->i_mapping->a_ops = &minix_aops;
405 } else if (S_ISLNK(inode->i_mode)) {
406 inode->i_op = &minix_symlink_inode_operations;
407 inode->i_mapping->a_ops = &minix_aops;
408 } else
409 init_special_inode(inode, inode->i_mode, rdev);
410 }
411
412 /*
413 * The minix V1 function to read an inode.
414 */
415 static struct inode *V1_minix_iget(struct inode *inode)
416 {
417 struct buffer_head * bh;
418 struct minix_inode * raw_inode;
419 struct minix_inode_info *minix_inode = minix_i(inode);
420 int i;
421
422 raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
423 if (!raw_inode) {
424 iget_failed(inode);
425 return ERR_PTR(-EIO);
426 }
427 inode->i_mode = raw_inode->i_mode;
428 inode->i_uid = (uid_t)raw_inode->i_uid;
429 inode->i_gid = (gid_t)raw_inode->i_gid;
430 inode->i_nlink = raw_inode->i_nlinks;
431 inode->i_size = raw_inode->i_size;
432 inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = raw_inode->i_time;
433 inode->i_mtime.tv_nsec = 0;
434 inode->i_atime.tv_nsec = 0;
435 inode->i_ctime.tv_nsec = 0;
436 inode->i_blocks = 0;
437 for (i = 0; i < 9; i++)
438 minix_inode->u.i1_data[i] = raw_inode->i_zone[i];
439 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
440 brelse(bh);
441 unlock_new_inode(inode);
442 return inode;
443 }
444
445 /*
446 * The minix V2 function to read an inode.
447 */
448 static struct inode *V2_minix_iget(struct inode *inode)
449 {
450 struct buffer_head * bh;
451 struct minix2_inode * raw_inode;
452 struct minix_inode_info *minix_inode = minix_i(inode);
453 int i;
454
455 raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
456 if (!raw_inode) {
457 iget_failed(inode);
458 return ERR_PTR(-EIO);
459 }
460 inode->i_mode = raw_inode->i_mode;
461 inode->i_uid = (uid_t)raw_inode->i_uid;
462 inode->i_gid = (gid_t)raw_inode->i_gid;
463 inode->i_nlink = raw_inode->i_nlinks;
464 inode->i_size = raw_inode->i_size;
465 inode->i_mtime.tv_sec = raw_inode->i_mtime;
466 inode->i_atime.tv_sec = raw_inode->i_atime;
467 inode->i_ctime.tv_sec = raw_inode->i_ctime;
468 inode->i_mtime.tv_nsec = 0;
469 inode->i_atime.tv_nsec = 0;
470 inode->i_ctime.tv_nsec = 0;
471 inode->i_blocks = 0;
472 for (i = 0; i < 10; i++)
473 minix_inode->u.i2_data[i] = raw_inode->i_zone[i];
474 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
475 brelse(bh);
476 unlock_new_inode(inode);
477 return inode;
478 }
479
480 /*
481 * The global function to read an inode.
482 */
483 struct inode *minix_iget(struct super_block *sb, unsigned long ino)
484 {
485 struct inode *inode;
486
487 inode = iget_locked(sb, ino);
488 if (!inode)
489 return ERR_PTR(-ENOMEM);
490 if (!(inode->i_state & I_NEW))
491 return inode;
492
493 if (INODE_VERSION(inode) == MINIX_V1)
494 return V1_minix_iget(inode);
495 else
496 return V2_minix_iget(inode);
497 }
498
499 /*
500 * The minix V1 function to synchronize an inode.
501 */
502 static struct buffer_head * V1_minix_update_inode(struct inode * inode)
503 {
504 struct buffer_head * bh;
505 struct minix_inode * raw_inode;
506 struct minix_inode_info *minix_inode = minix_i(inode);
507 int i;
508
509 raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh);
510 if (!raw_inode)
511 return NULL;
512 raw_inode->i_mode = inode->i_mode;
513 raw_inode->i_uid = fs_high2lowuid(inode->i_uid);
514 raw_inode->i_gid = fs_high2lowgid(inode->i_gid);
515 raw_inode->i_nlinks = inode->i_nlink;
516 raw_inode->i_size = inode->i_size;
517 raw_inode->i_time = inode->i_mtime.tv_sec;
518 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
519 raw_inode->i_zone[0] = old_encode_dev(inode->i_rdev);
520 else for (i = 0; i < 9; i++)
521 raw_inode->i_zone[i] = minix_inode->u.i1_data[i];
522 mark_buffer_dirty(bh);
523 return bh;
524 }
525
526 /*
527 * The minix V2 function to synchronize an inode.
528 */
529 static struct buffer_head * V2_minix_update_inode(struct inode * inode)
530 {
531 struct buffer_head * bh;
532 struct minix2_inode * raw_inode;
533 struct minix_inode_info *minix_inode = minix_i(inode);
534 int i;
535
536 raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh);
537 if (!raw_inode)
538 return NULL;
539 raw_inode->i_mode = inode->i_mode;
540 raw_inode->i_uid = fs_high2lowuid(inode->i_uid);
541 raw_inode->i_gid = fs_high2lowgid(inode->i_gid);
542 raw_inode->i_nlinks = inode->i_nlink;
543 raw_inode->i_size = inode->i_size;
544 raw_inode->i_mtime = inode->i_mtime.tv_sec;
545 raw_inode->i_atime = inode->i_atime.tv_sec;
546 raw_inode->i_ctime = inode->i_ctime.tv_sec;
547 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
548 raw_inode->i_zone[0] = old_encode_dev(inode->i_rdev);
549 else for (i = 0; i < 10; i++)
550 raw_inode->i_zone[i] = minix_inode->u.i2_data[i];
551 mark_buffer_dirty(bh);
552 return bh;
553 }
554
555 static int minix_write_inode(struct inode *inode, int wait)
556 {
557 int err = 0;
558 struct buffer_head *bh;
559
560 if (INODE_VERSION(inode) == MINIX_V1)
561 bh = V1_minix_update_inode(inode);
562 else
563 bh = V2_minix_update_inode(inode);
564 if (!bh)
565 return -EIO;
566 if (wait && buffer_dirty(bh)) {
567 sync_dirty_buffer(bh);
568 if (buffer_req(bh) && !buffer_uptodate(bh)) {
569 printk("IO error syncing minix inode [%s:%08lx]\n",
570 inode->i_sb->s_id, inode->i_ino);
571 err = -EIO;
572 }
573 }
574 brelse (bh);
575 return err;
576 }
577
578 int minix_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
579 {
580 struct inode *dir = dentry->d_parent->d_inode;
581 struct super_block *sb = dir->i_sb;
582 generic_fillattr(dentry->d_inode, stat);
583 if (INODE_VERSION(dentry->d_inode) == MINIX_V1)
584 stat->blocks = (BLOCK_SIZE / 512) * V1_minix_blocks(stat->size, sb);
585 else
586 stat->blocks = (sb->s_blocksize / 512) * V2_minix_blocks(stat->size, sb);
587 stat->blksize = sb->s_blocksize;
588 return 0;
589 }
590
591 /*
592 * The function that is called for file truncation.
593 */
594 void minix_truncate(struct inode * inode)
595 {
596 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
597 return;
598 if (INODE_VERSION(inode) == MINIX_V1)
599 V1_minix_truncate(inode);
600 else
601 V2_minix_truncate(inode);
602 }
603
604 static int minix_get_sb(struct file_system_type *fs_type,
605 int flags, const char *dev_name, void *data, struct vfsmount *mnt)
606 {
607 return get_sb_bdev(fs_type, flags, dev_name, data, minix_fill_super,
608 mnt);
609 }
610
611 static struct file_system_type minix_fs_type = {
612 .owner = THIS_MODULE,
613 .name = "minix",
614 .get_sb = minix_get_sb,
615 .kill_sb = kill_block_super,
616 .fs_flags = FS_REQUIRES_DEV,
617 };
618
619 static int __init init_minix_fs(void)
620 {
621 int err = init_inodecache();
622 if (err)
623 goto out1;
624 err = register_filesystem(&minix_fs_type);
625 if (err)
626 goto out;
627 return 0;
628 out:
629 destroy_inodecache();
630 out1:
631 return err;
632 }
633
634 static void __exit exit_minix_fs(void)
635 {
636 unregister_filesystem(&minix_fs_type);
637 destroy_inodecache();
638 }
639
640 module_init(init_minix_fs)
641 module_exit(exit_minix_fs)
642 MODULE_LICENSE("GPL");
643
644
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