blob: 01d25d532541bc3d698f5321923a87cf9900cfe4 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/affs/inode.c
3 *
4 * (c) 1996 Hans-Joachim Widmaier - Rewritten
5 *
6 * (C) 1993 Ray Burr - Modified for Amiga FFS filesystem.
7 *
8 * (C) 1992 Eric Youngdale Modified for ISO 9660 filesystem.
9 *
10 * (C) 1991 Linus Torvalds - minix filesystem
11 */
12
13#include <linux/module.h>
14#include <linux/init.h>
15#include <linux/statfs.h>
16#include <linux/parser.h>
Jeff Garzike18fa702006-09-24 11:13:19 -040017#include <linux/magic.h>
Alexey Dobriyane8edc6e2007-05-21 01:22:52 +040018#include <linux/sched.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include "affs.h"
20
21extern struct timezone sys_tz;
22
David Howells726c3342006-06-23 02:02:58 -070023static int affs_statfs(struct dentry *dentry, struct kstatfs *buf);
Linus Torvalds1da177e2005-04-16 15:20:36 -070024static int affs_remount (struct super_block *sb, int *flags, char *data);
25
26static void
27affs_put_super(struct super_block *sb)
28{
29 struct affs_sb_info *sbi = AFFS_SB(sb);
30 pr_debug("AFFS: put_super()\n");
31
32 if (!(sb->s_flags & MS_RDONLY)) {
33 AFFS_ROOT_TAIL(sb, sbi->s_root_bh)->bm_flag = cpu_to_be32(1);
34 secs_to_datestamp(get_seconds(),
35 &AFFS_ROOT_TAIL(sb, sbi->s_root_bh)->disk_change);
36 affs_fix_checksum(sb, sbi->s_root_bh);
37 mark_buffer_dirty(sbi->s_root_bh);
38 }
39
Jesper Juhlf99d49a2005-11-07 01:01:34 -080040 kfree(sbi->s_prefix);
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 affs_free_bitmap(sb);
42 affs_brelse(sbi->s_root_bh);
43 kfree(sbi);
44 sb->s_fs_info = NULL;
45 return;
46}
47
48static void
49affs_write_super(struct super_block *sb)
50{
51 int clean = 2;
52 struct affs_sb_info *sbi = AFFS_SB(sb);
53
54 if (!(sb->s_flags & MS_RDONLY)) {
55 // if (sbi->s_bitmap[i].bm_bh) {
56 // if (buffer_dirty(sbi->s_bitmap[i].bm_bh)) {
57 // clean = 0;
58 AFFS_ROOT_TAIL(sb, sbi->s_root_bh)->bm_flag = cpu_to_be32(clean);
59 secs_to_datestamp(get_seconds(),
60 &AFFS_ROOT_TAIL(sb, sbi->s_root_bh)->disk_change);
61 affs_fix_checksum(sb, sbi->s_root_bh);
62 mark_buffer_dirty(sbi->s_root_bh);
63 sb->s_dirt = !clean; /* redo until bitmap synced */
64 } else
65 sb->s_dirt = 0;
66
67 pr_debug("AFFS: write_super() at %lu, clean=%d\n", get_seconds(), clean);
68}
69
Christoph Lametere18b8902006-12-06 20:33:20 -080070static struct kmem_cache * affs_inode_cachep;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72static struct inode *affs_alloc_inode(struct super_block *sb)
73{
74 struct affs_inode_info *ei;
Christoph Lametere94b1762006-12-06 20:33:17 -080075 ei = (struct affs_inode_info *)kmem_cache_alloc(affs_inode_cachep, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 if (!ei)
77 return NULL;
78 ei->vfs_inode.i_version = 1;
79 return &ei->vfs_inode;
80}
81
82static void affs_destroy_inode(struct inode *inode)
83{
84 kmem_cache_free(affs_inode_cachep, AFFS_I(inode));
85}
86
Christoph Lameter4ba9b9d2007-10-16 23:25:51 -070087static void init_once(struct kmem_cache *cachep, void *foo)
Linus Torvalds1da177e2005-04-16 15:20:36 -070088{
89 struct affs_inode_info *ei = (struct affs_inode_info *) foo;
90
Christoph Lametera35afb82007-05-16 22:10:57 -070091 init_MUTEX(&ei->i_link_lock);
92 init_MUTEX(&ei->i_ext_lock);
93 inode_init_once(&ei->vfs_inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -070094}
95
96static int init_inodecache(void)
97{
98 affs_inode_cachep = kmem_cache_create("affs_inode_cache",
99 sizeof(struct affs_inode_info),
Paul Jacksonfffb60f2006-03-24 03:16:06 -0800100 0, (SLAB_RECLAIM_ACCOUNT|
101 SLAB_MEM_SPREAD),
Paul Mundt20c2df82007-07-20 10:11:58 +0900102 init_once);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 if (affs_inode_cachep == NULL)
104 return -ENOMEM;
105 return 0;
106}
107
108static void destroy_inodecache(void)
109{
Alexey Dobriyan1a1d92c2006-09-27 01:49:40 -0700110 kmem_cache_destroy(affs_inode_cachep);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111}
112
Josef 'Jeff' Sipekee9b6d62007-02-12 00:55:41 -0800113static const struct super_operations affs_sops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 .alloc_inode = affs_alloc_inode,
115 .destroy_inode = affs_destroy_inode,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 .write_inode = affs_write_inode,
117 .put_inode = affs_put_inode,
Christoph Hellwig2be3c792007-02-20 13:58:11 -0800118 .drop_inode = affs_drop_inode,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 .delete_inode = affs_delete_inode,
120 .clear_inode = affs_clear_inode,
121 .put_super = affs_put_super,
122 .write_super = affs_write_super,
123 .statfs = affs_statfs,
124 .remount_fs = affs_remount,
Miklos Szeredie9b39612008-02-08 04:21:36 -0800125 .show_options = generic_show_options,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126};
127
128enum {
129 Opt_bs, Opt_mode, Opt_mufs, Opt_prefix, Opt_protect,
130 Opt_reserved, Opt_root, Opt_setgid, Opt_setuid,
131 Opt_verbose, Opt_volume, Opt_ignore, Opt_err,
132};
133
134static match_table_t tokens = {
135 {Opt_bs, "bs=%u"},
136 {Opt_mode, "mode=%o"},
137 {Opt_mufs, "mufs"},
138 {Opt_prefix, "prefix=%s"},
139 {Opt_protect, "protect"},
140 {Opt_reserved, "reserved=%u"},
141 {Opt_root, "root=%u"},
142 {Opt_setgid, "setgid=%u"},
143 {Opt_setuid, "setuid=%u"},
144 {Opt_verbose, "verbose"},
145 {Opt_volume, "volume=%s"},
146 {Opt_ignore, "grpquota"},
147 {Opt_ignore, "noquota"},
148 {Opt_ignore, "quota"},
149 {Opt_ignore, "usrquota"},
150 {Opt_err, NULL},
151};
152
153static int
154parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s32 *root,
155 int *blocksize, char **prefix, char *volume, unsigned long *mount_opts)
156{
157 char *p;
158 substring_t args[MAX_OPT_ARGS];
159
160 /* Fill in defaults */
161
162 *uid = current->uid;
163 *gid = current->gid;
164 *reserved = 2;
165 *root = -1;
166 *blocksize = -1;
167 volume[0] = ':';
168 volume[1] = 0;
169 *mount_opts = 0;
170 if (!options)
171 return 1;
172
173 while ((p = strsep(&options, ",")) != NULL) {
174 int token, n, option;
175 if (!*p)
176 continue;
177
178 token = match_token(p, tokens, args);
179 switch (token) {
180 case Opt_bs:
181 if (match_int(&args[0], &n))
182 return -EINVAL;
183 if (n != 512 && n != 1024 && n != 2048
184 && n != 4096) {
185 printk ("AFFS: Invalid blocksize (512, 1024, 2048, 4096 allowed)\n");
186 return 0;
187 }
188 *blocksize = n;
189 break;
190 case Opt_mode:
191 if (match_octal(&args[0], &option))
192 return 1;
193 *mode = option & 0777;
194 *mount_opts |= SF_SETMODE;
195 break;
196 case Opt_mufs:
197 *mount_opts |= SF_MUFS;
198 break;
199 case Opt_prefix:
Jesper Juhlf99d49a2005-11-07 01:01:34 -0800200 /* Free any previous prefix */
201 kfree(*prefix);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 *prefix = match_strdup(&args[0]);
203 if (!*prefix)
204 return 0;
205 *mount_opts |= SF_PREFIX;
206 break;
207 case Opt_protect:
208 *mount_opts |= SF_IMMUTABLE;
209 break;
210 case Opt_reserved:
211 if (match_int(&args[0], reserved))
212 return 1;
213 break;
214 case Opt_root:
215 if (match_int(&args[0], root))
216 return 1;
217 break;
218 case Opt_setgid:
219 if (match_int(&args[0], &option))
220 return 1;
221 *gid = option;
222 *mount_opts |= SF_SETGID;
223 break;
224 case Opt_setuid:
225 if (match_int(&args[0], &option))
226 return -EINVAL;
227 *uid = option;
228 *mount_opts |= SF_SETUID;
229 break;
230 case Opt_verbose:
231 *mount_opts |= SF_VERBOSE;
232 break;
233 case Opt_volume: {
234 char *vol = match_strdup(&args[0]);
Jim Meyering6db27dd2008-04-29 00:59:06 -0700235 if (!vol)
236 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 strlcpy(volume, vol, 32);
238 kfree(vol);
239 break;
240 }
241 case Opt_ignore:
242 /* Silently ignore the quota options */
243 break;
244 default:
245 printk("AFFS: Unrecognized mount option \"%s\" "
246 "or missing value\n", p);
247 return 0;
248 }
249 }
250 return 1;
251}
252
253/* This function definitely needs to be split up. Some fine day I'll
254 * hopefully have the guts to do so. Until then: sorry for the mess.
255 */
256
257static int affs_fill_super(struct super_block *sb, void *data, int silent)
258{
259 struct affs_sb_info *sbi;
260 struct buffer_head *root_bh = NULL;
261 struct buffer_head *boot_bh;
262 struct inode *root_inode = NULL;
263 s32 root_block;
264 int size, blocksize;
265 u32 chksum;
266 int num_bm;
267 int i, j;
268 s32 key;
269 uid_t uid;
270 gid_t gid;
271 int reserved;
272 unsigned long mount_flags;
273 int tmp_flags; /* fix remount prototype... */
Al Viro2b943cf2006-06-25 05:49:08 -0700274 u8 sig[4];
David Howells210f8552008-02-07 00:15:29 -0800275 int ret = -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276
Miklos Szeredie9b39612008-02-08 04:21:36 -0800277 save_mount_options(sb, data);
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options");
280
281 sb->s_magic = AFFS_SUPER_MAGIC;
282 sb->s_op = &affs_sops;
283 sb->s_flags |= MS_NODIRATIME;
284
Panagiotis Issarisf8314dc2006-09-27 01:49:37 -0700285 sbi = kzalloc(sizeof(struct affs_sb_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 if (!sbi)
287 return -ENOMEM;
288 sb->s_fs_info = sbi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 init_MUTEX(&sbi->s_bmlock);
290
291 if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block,
292 &blocksize,&sbi->s_prefix,
293 sbi->s_volume, &mount_flags)) {
294 printk(KERN_ERR "AFFS: Error parsing options\n");
295 return -EINVAL;
296 }
297 /* N.B. after this point s_prefix must be released */
298
299 sbi->s_flags = mount_flags;
300 sbi->s_mode = i;
301 sbi->s_uid = uid;
302 sbi->s_gid = gid;
303 sbi->s_reserved= reserved;
304
305 /* Get the size of the device in 512-byte blocks.
306 * If we later see that the partition uses bigger
307 * blocks, we will have to change it.
308 */
309
310 size = sb->s_bdev->bd_inode->i_size >> 9;
311 pr_debug("AFFS: initial blocksize=%d, #blocks=%d\n", 512, size);
312
313 affs_set_blocksize(sb, PAGE_SIZE);
314 /* Try to find root block. Its location depends on the block size. */
315
316 i = 512;
317 j = 4096;
318 if (blocksize > 0) {
319 i = j = blocksize;
320 size = size / (blocksize / 512);
321 }
322 for (blocksize = i, key = 0; blocksize <= j; blocksize <<= 1, size >>= 1) {
323 sbi->s_root_block = root_block;
324 if (root_block < 0)
325 sbi->s_root_block = (reserved + size - 1) / 2;
326 pr_debug("AFFS: setting blocksize to %d\n", blocksize);
327 affs_set_blocksize(sb, blocksize);
328 sbi->s_partition_size = size;
329
330 /* The root block location that was calculated above is not
331 * correct if the partition size is an odd number of 512-
332 * byte blocks, which will be rounded down to a number of
333 * 1024-byte blocks, and if there were an even number of
334 * reserved blocks. Ideally, all partition checkers should
335 * report the real number of blocks of the real blocksize,
336 * but since this just cannot be done, we have to try to
337 * find the root block anyways. In the above case, it is one
338 * block behind the calculated one. So we check this one, too.
339 */
340 for (num_bm = 0; num_bm < 2; num_bm++) {
341 pr_debug("AFFS: Dev %s, trying root=%u, bs=%d, "
342 "size=%d, reserved=%d\n",
343 sb->s_id,
344 sbi->s_root_block + num_bm,
345 blocksize, size, reserved);
346 root_bh = affs_bread(sb, sbi->s_root_block + num_bm);
347 if (!root_bh)
348 continue;
349 if (!affs_checksum_block(sb, root_bh) &&
350 be32_to_cpu(AFFS_ROOT_HEAD(root_bh)->ptype) == T_SHORT &&
351 be32_to_cpu(AFFS_ROOT_TAIL(sb, root_bh)->stype) == ST_ROOT) {
352 sbi->s_hashsize = blocksize / 4 - 56;
353 sbi->s_root_block += num_bm;
354 key = 1;
355 goto got_root;
356 }
357 affs_brelse(root_bh);
358 root_bh = NULL;
359 }
360 }
361 if (!silent)
362 printk(KERN_ERR "AFFS: No valid root block on device %s\n",
363 sb->s_id);
364 goto out_error;
365
366 /* N.B. after this point bh must be released */
367got_root:
368 root_block = sbi->s_root_block;
369
370 /* Find out which kind of FS we have */
371 boot_bh = sb_bread(sb, 0);
372 if (!boot_bh) {
373 printk(KERN_ERR "AFFS: Cannot read boot block\n");
374 goto out_error;
375 }
Al Viro2b943cf2006-06-25 05:49:08 -0700376 memcpy(sig, boot_bh->b_data, 4);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 brelse(boot_bh);
Al Viro2b943cf2006-06-25 05:49:08 -0700378 chksum = be32_to_cpu(*(__be32 *)sig);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
380 /* Dircache filesystems are compatible with non-dircache ones
381 * when reading. As long as they aren't supported, writing is
382 * not recommended.
383 */
384 if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS
385 || chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) {
386 printk(KERN_NOTICE "AFFS: Dircache FS - mounting %s read only\n",
387 sb->s_id);
388 sb->s_flags |= MS_RDONLY;
389 }
390 switch (chksum) {
391 case MUFS_FS:
392 case MUFS_INTLFFS:
393 case MUFS_DCFFS:
394 sbi->s_flags |= SF_MUFS;
395 /* fall thru */
396 case FS_INTLFFS:
397 case FS_DCFFS:
398 sbi->s_flags |= SF_INTL;
399 break;
400 case MUFS_FFS:
401 sbi->s_flags |= SF_MUFS;
402 break;
403 case FS_FFS:
404 break;
405 case MUFS_OFS:
406 sbi->s_flags |= SF_MUFS;
407 /* fall thru */
408 case FS_OFS:
409 sbi->s_flags |= SF_OFS;
410 sb->s_flags |= MS_NOEXEC;
411 break;
412 case MUFS_DCOFS:
413 case MUFS_INTLOFS:
414 sbi->s_flags |= SF_MUFS;
415 case FS_DCOFS:
416 case FS_INTLOFS:
417 sbi->s_flags |= SF_INTL | SF_OFS;
418 sb->s_flags |= MS_NOEXEC;
419 break;
420 default:
421 printk(KERN_ERR "AFFS: Unknown filesystem on device %s: %08X\n",
422 sb->s_id, chksum);
423 goto out_error;
424 }
425
426 if (mount_flags & SF_VERBOSE) {
Al Viro2b943cf2006-06-25 05:49:08 -0700427 u8 len = AFFS_ROOT_TAIL(sb, root_bh)->disk_name[0];
428 printk(KERN_NOTICE "AFFS: Mounting volume \"%.*s\": Type=%.3s\\%c, Blocksize=%d\n",
429 len > 31 ? 31 : len,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 AFFS_ROOT_TAIL(sb, root_bh)->disk_name + 1,
Al Viro2b943cf2006-06-25 05:49:08 -0700431 sig, sig[3] + '0', blocksize);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 }
433
434 sb->s_flags |= MS_NODEV | MS_NOSUID;
435
436 sbi->s_data_blksize = sb->s_blocksize;
437 if (sbi->s_flags & SF_OFS)
438 sbi->s_data_blksize -= 24;
439
440 /* Keep super block in cache */
441 sbi->s_root_bh = root_bh;
442 /* N.B. after this point s_root_bh must be released */
443
444 tmp_flags = sb->s_flags;
445 if (affs_init_bitmap(sb, &tmp_flags))
446 goto out_error;
447 sb->s_flags = tmp_flags;
448
449 /* set up enough so that it can read an inode */
450
David Howells210f8552008-02-07 00:15:29 -0800451 root_inode = affs_iget(sb, root_block);
452 if (IS_ERR(root_inode)) {
453 ret = PTR_ERR(root_inode);
454 goto out_error_noinode;
455 }
456
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457 sb->s_root = d_alloc_root(root_inode);
458 if (!sb->s_root) {
459 printk(KERN_ERR "AFFS: Get root inode failed\n");
460 goto out_error;
461 }
462 sb->s_root->d_op = &affs_dentry_operations;
463
464 pr_debug("AFFS: s_flags=%lX\n",sb->s_flags);
465 return 0;
466
467 /*
468 * Begin the cascaded cleanup ...
469 */
470out_error:
471 if (root_inode)
472 iput(root_inode);
David Howells210f8552008-02-07 00:15:29 -0800473out_error_noinode:
Jesper Juhlf99d49a2005-11-07 01:01:34 -0800474 kfree(sbi->s_bitmap);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 affs_brelse(root_bh);
Jesper Juhlf99d49a2005-11-07 01:01:34 -0800476 kfree(sbi->s_prefix);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 kfree(sbi);
478 sb->s_fs_info = NULL;
David Howells210f8552008-02-07 00:15:29 -0800479 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480}
481
482static int
483affs_remount(struct super_block *sb, int *flags, char *data)
484{
485 struct affs_sb_info *sbi = AFFS_SB(sb);
486 int blocksize;
487 uid_t uid;
488 gid_t gid;
489 int mode;
490 int reserved;
491 int root_block;
492 unsigned long mount_flags;
493 int res = 0;
Miklos Szeredie9b39612008-02-08 04:21:36 -0800494 char *new_opts = kstrdup(data, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495
496 pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data);
497
498 *flags |= MS_NODIRATIME;
499
Miklos Szeredie9b39612008-02-08 04:21:36 -0800500 if (!parse_options(data, &uid, &gid, &mode, &reserved, &root_block,
501 &blocksize, &sbi->s_prefix, sbi->s_volume,
502 &mount_flags)) {
503 kfree(new_opts);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 return -EINVAL;
Miklos Szeredie9b39612008-02-08 04:21:36 -0800505 }
506 kfree(sb->s_options);
507 sb->s_options = new_opts;
508
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 sbi->s_flags = mount_flags;
510 sbi->s_mode = mode;
511 sbi->s_uid = uid;
512 sbi->s_gid = gid;
513
514 if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
515 return 0;
516 if (*flags & MS_RDONLY) {
517 sb->s_dirt = 1;
518 while (sb->s_dirt)
519 affs_write_super(sb);
520 affs_free_bitmap(sb);
521 } else
522 res = affs_init_bitmap(sb, flags);
523
524 return res;
525}
526
527static int
David Howells726c3342006-06-23 02:02:58 -0700528affs_statfs(struct dentry *dentry, struct kstatfs *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529{
David Howells726c3342006-06-23 02:02:58 -0700530 struct super_block *sb = dentry->d_sb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531 int free;
532
533 pr_debug("AFFS: statfs() partsize=%d, reserved=%d\n",AFFS_SB(sb)->s_partition_size,
534 AFFS_SB(sb)->s_reserved);
535
536 free = affs_count_free_blocks(sb);
537 buf->f_type = AFFS_SUPER_MAGIC;
538 buf->f_bsize = sb->s_blocksize;
539 buf->f_blocks = AFFS_SB(sb)->s_partition_size - AFFS_SB(sb)->s_reserved;
540 buf->f_bfree = free;
541 buf->f_bavail = free;
542 return 0;
543}
544
David Howells454e2392006-06-23 02:02:57 -0700545static int affs_get_sb(struct file_system_type *fs_type,
546 int flags, const char *dev_name, void *data, struct vfsmount *mnt)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547{
David Howells454e2392006-06-23 02:02:57 -0700548 return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super,
549 mnt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550}
551
552static struct file_system_type affs_fs_type = {
553 .owner = THIS_MODULE,
554 .name = "affs",
555 .get_sb = affs_get_sb,
556 .kill_sb = kill_block_super,
557 .fs_flags = FS_REQUIRES_DEV,
558};
559
560static int __init init_affs_fs(void)
561{
562 int err = init_inodecache();
563 if (err)
564 goto out1;
565 err = register_filesystem(&affs_fs_type);
566 if (err)
567 goto out;
568 return 0;
569out:
570 destroy_inodecache();
571out1:
572 return err;
573}
574
575static void __exit exit_affs_fs(void)
576{
577 unregister_filesystem(&affs_fs_type);
578 destroy_inodecache();
579}
580
581MODULE_DESCRIPTION("Amiga filesystem support for Linux");
582MODULE_LICENSE("GPL");
583
584module_init(init_affs_fs)
585module_exit(exit_affs_fs)