blob: bdaec92353c2cc0e5e876115ee7a474e45c0ba4b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/adfs/super.c
3 *
4 * Copyright (C) 1997-1999 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/init.h>
12#include <linux/buffer_head.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include <linux/parser.h>
Miklos Szeredie11400b2008-02-08 04:21:35 -080014#include <linux/mount.h>
15#include <linux/seq_file.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090016#include <linux/slab.h>
Al Viro608ba502009-06-16 14:52:13 -040017#include <linux/statfs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include "adfs.h"
19#include "dir_f.h"
20#include "dir_fplus.h"
21
Miklos Szeredie11400b2008-02-08 04:21:35 -080022#define ADFS_DEFAULT_OWNER_MASK S_IRWXU
23#define ADFS_DEFAULT_OTHER_MASK (S_IRWXG | S_IRWXO)
24
Linus Torvalds1da177e2005-04-16 15:20:36 -070025void __adfs_error(struct super_block *sb, const char *function, const char *fmt, ...)
26{
27 char error_buf[128];
28 va_list args;
29
30 va_start(args, fmt);
Alexey Dobriyan4a6e6172006-12-06 20:37:04 -080031 vsnprintf(error_buf, sizeof(error_buf), fmt, args);
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 va_end(args);
33
34 printk(KERN_CRIT "ADFS-fs error (device %s)%s%s: %s\n",
35 sb->s_id, function ? ": " : "",
36 function ? function : "", error_buf);
37}
38
39static int adfs_checkdiscrecord(struct adfs_discrecord *dr)
40{
41 int i;
42
43 /* sector size must be 256, 512 or 1024 bytes */
44 if (dr->log2secsize != 8 &&
45 dr->log2secsize != 9 &&
46 dr->log2secsize != 10)
47 return 1;
48
49 /* idlen must be at least log2secsize + 3 */
50 if (dr->idlen < dr->log2secsize + 3)
51 return 1;
52
53 /* we cannot have such a large disc that we
54 * are unable to represent sector offsets in
55 * 32 bits. This works out at 2.0 TB.
56 */
57 if (le32_to_cpu(dr->disc_size_high) >> dr->log2secsize)
58 return 1;
59
60 /* idlen must be no greater than 19 v2 [1.0] */
61 if (dr->idlen > 19)
62 return 1;
63
64 /* reserved bytes should be zero */
65 for (i = 0; i < sizeof(dr->unused52); i++)
66 if (dr->unused52[i] != 0)
67 return 1;
68
69 return 0;
70}
71
72static unsigned char adfs_calczonecheck(struct super_block *sb, unsigned char *map)
73{
74 unsigned int v0, v1, v2, v3;
75 int i;
76
77 v0 = v1 = v2 = v3 = 0;
78 for (i = sb->s_blocksize - 4; i; i -= 4) {
79 v0 += map[i] + (v3 >> 8);
80 v3 &= 0xff;
81 v1 += map[i + 1] + (v0 >> 8);
82 v0 &= 0xff;
83 v2 += map[i + 2] + (v1 >> 8);
84 v1 &= 0xff;
85 v3 += map[i + 3] + (v2 >> 8);
86 v2 &= 0xff;
87 }
88 v0 += v3 >> 8;
89 v1 += map[1] + (v0 >> 8);
90 v2 += map[2] + (v1 >> 8);
91 v3 += map[3] + (v2 >> 8);
92
93 return v0 ^ v1 ^ v2 ^ v3;
94}
95
96static int adfs_checkmap(struct super_block *sb, struct adfs_discmap *dm)
97{
98 unsigned char crosscheck = 0, zonecheck = 1;
99 int i;
100
101 for (i = 0; i < ADFS_SB(sb)->s_map_size; i++) {
102 unsigned char *map;
103
104 map = dm[i].dm_bh->b_data;
105
106 if (adfs_calczonecheck(sb, map) != map[0]) {
107 adfs_error(sb, "zone %d fails zonecheck", i);
108 zonecheck = 0;
109 }
110 crosscheck ^= map[3];
111 }
112 if (crosscheck != 0xff)
113 adfs_error(sb, "crosscheck != 0xff");
114 return crosscheck == 0xff && zonecheck;
115}
116
117static void adfs_put_super(struct super_block *sb)
118{
119 int i;
120 struct adfs_sb_info *asb = ADFS_SB(sb);
121
122 for (i = 0; i < asb->s_map_size; i++)
123 brelse(asb->s_map[i].dm_bh);
124 kfree(asb->s_map);
125 kfree(asb);
126 sb->s_fs_info = NULL;
127}
128
Al Viro34c80b12011-12-08 21:32:45 -0500129static int adfs_show_options(struct seq_file *seq, struct dentry *root)
Miklos Szeredie11400b2008-02-08 04:21:35 -0800130{
Al Viro34c80b12011-12-08 21:32:45 -0500131 struct adfs_sb_info *asb = ADFS_SB(root->d_sb);
Miklos Szeredie11400b2008-02-08 04:21:35 -0800132
133 if (asb->s_uid != 0)
134 seq_printf(seq, ",uid=%u", asb->s_uid);
135 if (asb->s_gid != 0)
136 seq_printf(seq, ",gid=%u", asb->s_gid);
137 if (asb->s_owner_mask != ADFS_DEFAULT_OWNER_MASK)
138 seq_printf(seq, ",ownmask=%o", asb->s_owner_mask);
139 if (asb->s_other_mask != ADFS_DEFAULT_OTHER_MASK)
140 seq_printf(seq, ",othmask=%o", asb->s_other_mask);
Stuart Swalesda23ef02011-03-22 16:35:06 -0700141 if (asb->s_ftsuffix != 0)
142 seq_printf(seq, ",ftsuffix=%u", asb->s_ftsuffix);
Miklos Szeredie11400b2008-02-08 04:21:35 -0800143
144 return 0;
145}
146
Stuart Swalesda23ef02011-03-22 16:35:06 -0700147enum {Opt_uid, Opt_gid, Opt_ownmask, Opt_othmask, Opt_ftsuffix, Opt_err};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
Steven Whitehousea447c092008-10-13 10:46:57 +0100149static const match_table_t tokens = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 {Opt_uid, "uid=%u"},
151 {Opt_gid, "gid=%u"},
152 {Opt_ownmask, "ownmask=%o"},
153 {Opt_othmask, "othmask=%o"},
Stuart Swalesda23ef02011-03-22 16:35:06 -0700154 {Opt_ftsuffix, "ftsuffix=%u"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 {Opt_err, NULL}
156};
157
158static int parse_options(struct super_block *sb, char *options)
159{
160 char *p;
161 struct adfs_sb_info *asb = ADFS_SB(sb);
162 int option;
163
164 if (!options)
165 return 0;
166
167 while ((p = strsep(&options, ",")) != NULL) {
168 substring_t args[MAX_OPT_ARGS];
169 int token;
170 if (!*p)
171 continue;
172
173 token = match_token(p, tokens, args);
174 switch (token) {
175 case Opt_uid:
176 if (match_int(args, &option))
177 return -EINVAL;
178 asb->s_uid = option;
179 break;
180 case Opt_gid:
181 if (match_int(args, &option))
182 return -EINVAL;
183 asb->s_gid = option;
184 break;
185 case Opt_ownmask:
186 if (match_octal(args, &option))
187 return -EINVAL;
188 asb->s_owner_mask = option;
189 break;
190 case Opt_othmask:
191 if (match_octal(args, &option))
192 return -EINVAL;
193 asb->s_other_mask = option;
194 break;
Stuart Swalesda23ef02011-03-22 16:35:06 -0700195 case Opt_ftsuffix:
196 if (match_int(args, &option))
197 return -EINVAL;
198 asb->s_ftsuffix = option;
199 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 default:
201 printk("ADFS-fs: unrecognised mount option \"%s\" "
202 "or missing value\n", p);
203 return -EINVAL;
204 }
205 }
206 return 0;
207}
208
209static int adfs_remount(struct super_block *sb, int *flags, char *data)
210{
211 *flags |= MS_NODIRATIME;
212 return parse_options(sb, data);
213}
214
David Howells726c3342006-06-23 02:02:58 -0700215static int adfs_statfs(struct dentry *dentry, struct kstatfs *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216{
Coly Liaccb4012009-04-02 16:59:27 -0700217 struct super_block *sb = dentry->d_sb;
218 struct adfs_sb_info *sbi = ADFS_SB(sb);
219 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
221 buf->f_type = ADFS_SUPER_MAGIC;
Coly Liaccb4012009-04-02 16:59:27 -0700222 buf->f_namelen = sbi->s_namelen;
223 buf->f_bsize = sb->s_blocksize;
224 buf->f_blocks = sbi->s_size;
225 buf->f_files = sbi->s_ids_per_zone * sbi->s_map_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 buf->f_bavail =
Coly Liaccb4012009-04-02 16:59:27 -0700227 buf->f_bfree = adfs_map_free(sb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 buf->f_ffree = (long)(buf->f_bfree * buf->f_files) / (long)buf->f_blocks;
Coly Liaccb4012009-04-02 16:59:27 -0700229 buf->f_fsid.val[0] = (u32)id;
230 buf->f_fsid.val[1] = (u32)(id >> 32);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231
232 return 0;
233}
234
Christoph Lametere18b8902006-12-06 20:33:20 -0800235static struct kmem_cache *adfs_inode_cachep;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
237static struct inode *adfs_alloc_inode(struct super_block *sb)
238{
239 struct adfs_inode_info *ei;
Christoph Lametere94b1762006-12-06 20:33:17 -0800240 ei = (struct adfs_inode_info *)kmem_cache_alloc(adfs_inode_cachep, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 if (!ei)
242 return NULL;
243 return &ei->vfs_inode;
244}
245
Nick Pigginfa0d7e3d2011-01-07 17:49:49 +1100246static void adfs_i_callback(struct rcu_head *head)
247{
248 struct inode *inode = container_of(head, struct inode, i_rcu);
Nick Pigginfa0d7e3d2011-01-07 17:49:49 +1100249 kmem_cache_free(adfs_inode_cachep, ADFS_I(inode));
250}
251
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252static void adfs_destroy_inode(struct inode *inode)
253{
Nick Pigginfa0d7e3d2011-01-07 17:49:49 +1100254 call_rcu(&inode->i_rcu, adfs_i_callback);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255}
256
Alexey Dobriyan51cc5062008-07-25 19:45:34 -0700257static void init_once(void *foo)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258{
259 struct adfs_inode_info *ei = (struct adfs_inode_info *) foo;
260
Christoph Lametera35afb82007-05-16 22:10:57 -0700261 inode_init_once(&ei->vfs_inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262}
Paul Mundt20c2df82007-07-20 10:11:58 +0900263
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264static int init_inodecache(void)
265{
266 adfs_inode_cachep = kmem_cache_create("adfs_inode_cache",
267 sizeof(struct adfs_inode_info),
Paul Jacksonfffb60f2006-03-24 03:16:06 -0800268 0, (SLAB_RECLAIM_ACCOUNT|
269 SLAB_MEM_SPREAD),
Paul Mundt20c2df82007-07-20 10:11:58 +0900270 init_once);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 if (adfs_inode_cachep == NULL)
272 return -ENOMEM;
273 return 0;
274}
275
276static void destroy_inodecache(void)
277{
Alexey Dobriyan1a1d92c2006-09-27 01:49:40 -0700278 kmem_cache_destroy(adfs_inode_cachep);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279}
280
Josef 'Jeff' Sipekee9b6d62007-02-12 00:55:41 -0800281static const struct super_operations adfs_sops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 .alloc_inode = adfs_alloc_inode,
283 .destroy_inode = adfs_destroy_inode,
284 .write_inode = adfs_write_inode,
285 .put_super = adfs_put_super,
286 .statfs = adfs_statfs,
287 .remount_fs = adfs_remount,
Miklos Szeredie11400b2008-02-08 04:21:35 -0800288 .show_options = adfs_show_options,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289};
290
291static struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_discrecord *dr)
292{
293 struct adfs_discmap *dm;
294 unsigned int map_addr, zone_size, nzones;
295 int i, zone;
296 struct adfs_sb_info *asb = ADFS_SB(sb);
297
298 nzones = asb->s_map_size;
299 zone_size = (8 << dr->log2secsize) - le16_to_cpu(dr->zone_spare);
300 map_addr = (nzones >> 1) * zone_size -
301 ((nzones > 1) ? ADFS_DR_SIZE_BITS : 0);
302 map_addr = signed_asl(map_addr, asb->s_map2blk);
303
304 asb->s_ids_per_zone = zone_size / (asb->s_idlen + 1);
305
306 dm = kmalloc(nzones * sizeof(*dm), GFP_KERNEL);
307 if (dm == NULL) {
308 adfs_error(sb, "not enough memory");
309 return NULL;
310 }
311
312 for (zone = 0; zone < nzones; zone++, map_addr++) {
313 dm[zone].dm_startbit = 0;
314 dm[zone].dm_endbit = zone_size;
315 dm[zone].dm_startblk = zone * zone_size - ADFS_DR_SIZE_BITS;
316 dm[zone].dm_bh = sb_bread(sb, map_addr);
317
318 if (!dm[zone].dm_bh) {
319 adfs_error(sb, "unable to read map");
320 goto error_free;
321 }
322 }
323
324 /* adjust the limits for the first and last map zones */
325 i = zone - 1;
326 dm[0].dm_startblk = 0;
327 dm[0].dm_startbit = ADFS_DR_SIZE_BITS;
328 dm[i].dm_endbit = (le32_to_cpu(dr->disc_size_high) << (32 - dr->log2bpmb)) +
329 (le32_to_cpu(dr->disc_size) >> dr->log2bpmb) +
330 (ADFS_DR_SIZE_BITS - i * zone_size);
331
332 if (adfs_checkmap(sb, dm))
333 return dm;
334
Andrew Morton1725cd02006-08-13 23:24:17 -0700335 adfs_error(sb, "map corrupted");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336
337error_free:
338 while (--zone >= 0)
339 brelse(dm[zone].dm_bh);
340
341 kfree(dm);
342 return NULL;
343}
344
345static inline unsigned long adfs_discsize(struct adfs_discrecord *dr, int block_bits)
346{
347 unsigned long discsize;
348
349 discsize = le32_to_cpu(dr->disc_size_high) << (32 - block_bits);
350 discsize |= le32_to_cpu(dr->disc_size) >> block_bits;
351
352 return discsize;
353}
354
355static int adfs_fill_super(struct super_block *sb, void *data, int silent)
356{
357 struct adfs_discrecord *dr;
358 struct buffer_head *bh;
359 struct object_info root_obj;
360 unsigned char *b_data;
361 struct adfs_sb_info *asb;
362 struct inode *root;
363
364 sb->s_flags |= MS_NODIRATIME;
365
Panagiotis Issarisf8314dc2006-09-27 01:49:37 -0700366 asb = kzalloc(sizeof(*asb), GFP_KERNEL);
Arnd Bergmann4688a062011-01-22 20:05:05 +0100367 if (!asb)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 return -ENOMEM;
369 sb->s_fs_info = asb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370
371 /* set default options */
372 asb->s_uid = 0;
373 asb->s_gid = 0;
Miklos Szeredie11400b2008-02-08 04:21:35 -0800374 asb->s_owner_mask = ADFS_DEFAULT_OWNER_MASK;
375 asb->s_other_mask = ADFS_DEFAULT_OTHER_MASK;
Stuart Swalesda23ef02011-03-22 16:35:06 -0700376 asb->s_ftsuffix = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
378 if (parse_options(sb, data))
379 goto error;
380
381 sb_set_blocksize(sb, BLOCK_SIZE);
382 if (!(bh = sb_bread(sb, ADFS_DISCRECORD / BLOCK_SIZE))) {
383 adfs_error(sb, "unable to read superblock");
384 goto error;
385 }
386
387 b_data = bh->b_data + (ADFS_DISCRECORD % BLOCK_SIZE);
388
389 if (adfs_checkbblk(b_data)) {
390 if (!silent)
391 printk("VFS: Can't find an adfs filesystem on dev "
392 "%s.\n", sb->s_id);
393 goto error_free_bh;
394 }
395
396 dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
397
398 /*
399 * Do some sanity checks on the ADFS disc record
400 */
401 if (adfs_checkdiscrecord(dr)) {
402 if (!silent)
403 printk("VPS: Can't find an adfs filesystem on dev "
404 "%s.\n", sb->s_id);
405 goto error_free_bh;
406 }
407
408 brelse(bh);
409 if (sb_set_blocksize(sb, 1 << dr->log2secsize)) {
410 bh = sb_bread(sb, ADFS_DISCRECORD / sb->s_blocksize);
411 if (!bh) {
412 adfs_error(sb, "couldn't read superblock on "
413 "2nd try.");
414 goto error;
415 }
416 b_data = bh->b_data + (ADFS_DISCRECORD % sb->s_blocksize);
417 if (adfs_checkbblk(b_data)) {
418 adfs_error(sb, "disc record mismatch, very weird!");
419 goto error_free_bh;
420 }
421 dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
422 } else {
423 if (!silent)
424 printk(KERN_ERR "VFS: Unsupported blocksize on dev "
425 "%s.\n", sb->s_id);
426 goto error;
427 }
428
429 /*
430 * blocksize on this device should now be set to the ADFS log2secsize
431 */
432
433 sb->s_magic = ADFS_SUPER_MAGIC;
434 asb->s_idlen = dr->idlen;
435 asb->s_map_size = dr->nzones | (dr->nzones_high << 8);
436 asb->s_map2blk = dr->log2bpmb - dr->log2secsize;
437 asb->s_size = adfs_discsize(dr, sb->s_blocksize_bits);
438 asb->s_version = dr->format_version;
439 asb->s_log2sharesize = dr->log2sharesize;
440
441 asb->s_map = adfs_read_map(sb, dr);
442 if (!asb->s_map)
443 goto error_free_bh;
444
445 brelse(bh);
446
447 /*
448 * set up enough so that we can read an inode
449 */
450 sb->s_op = &adfs_sops;
451
452 dr = (struct adfs_discrecord *)(asb->s_map[0].dm_bh->b_data + 4);
453
454 root_obj.parent_id = root_obj.file_id = le32_to_cpu(dr->root);
455 root_obj.name_len = 0;
Stuart Swalesda23ef02011-03-22 16:35:06 -0700456 /* Set root object date as 01 Jan 1987 00:00:00 */
457 root_obj.loadaddr = 0xfff0003f;
458 root_obj.execaddr = 0xec22c000;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 root_obj.size = ADFS_NEWDIR_SIZE;
460 root_obj.attr = ADFS_NDA_DIRECTORY | ADFS_NDA_OWNER_READ |
461 ADFS_NDA_OWNER_WRITE | ADFS_NDA_PUBLIC_READ;
Stuart Swalesda23ef02011-03-22 16:35:06 -0700462 root_obj.filetype = -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463
464 /*
465 * If this is a F+ disk with variable length directories,
466 * get the root_size from the disc record.
467 */
468 if (asb->s_version) {
469 root_obj.size = le32_to_cpu(dr->root_size);
470 asb->s_dir = &adfs_fplus_dir_ops;
471 asb->s_namelen = ADFS_FPLUS_NAME_LEN;
472 } else {
473 asb->s_dir = &adfs_f_dir_ops;
474 asb->s_namelen = ADFS_F_NAME_LEN;
475 }
Stuart Swalesda23ef02011-03-22 16:35:06 -0700476 /*
477 * ,xyz hex filetype suffix may be added by driver
478 * to files that have valid RISC OS filetype
479 */
480 if (asb->s_ftsuffix)
481 asb->s_namelen += 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482
Al Viro96e13912010-12-18 11:20:57 -0500483 sb->s_d_op = &adfs_dentry_operations;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 root = adfs_iget(sb, &root_obj);
Al Viro48fde702012-01-08 22:15:13 -0500485 sb->s_root = d_make_root(root);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 if (!sb->s_root) {
487 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 for (i = 0; i < asb->s_map_size; i++)
489 brelse(asb->s_map[i].dm_bh);
490 kfree(asb->s_map);
491 adfs_error(sb, "get root inode failed\n");
492 goto error;
Al Viro96e13912010-12-18 11:20:57 -0500493 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 return 0;
495
496error_free_bh:
497 brelse(bh);
498error:
499 sb->s_fs_info = NULL;
500 kfree(asb);
501 return -EINVAL;
502}
503
Al Viro152a0832010-07-25 00:46:55 +0400504static struct dentry *adfs_mount(struct file_system_type *fs_type,
505 int flags, const char *dev_name, void *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506{
Al Viro152a0832010-07-25 00:46:55 +0400507 return mount_bdev(fs_type, flags, dev_name, data, adfs_fill_super);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508}
509
510static struct file_system_type adfs_fs_type = {
511 .owner = THIS_MODULE,
512 .name = "adfs",
Al Viro152a0832010-07-25 00:46:55 +0400513 .mount = adfs_mount,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 .kill_sb = kill_block_super,
515 .fs_flags = FS_REQUIRES_DEV,
516};
517
518static int __init init_adfs_fs(void)
519{
520 int err = init_inodecache();
521 if (err)
522 goto out1;
523 err = register_filesystem(&adfs_fs_type);
524 if (err)
525 goto out;
526 return 0;
527out:
528 destroy_inodecache();
529out1:
530 return err;
531}
532
533static void __exit exit_adfs_fs(void)
534{
535 unregister_filesystem(&adfs_fs_type);
536 destroy_inodecache();
537}
538
539module_init(init_adfs_fs)
540module_exit(exit_adfs_fs)
Al Viro608ba502009-06-16 14:52:13 -0400541MODULE_LICENSE("GPL");