blob: 409ce5429c91ccb8b53d5a9fff6ef0118546722d [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/hfsplus/inode.c
3 *
4 * Copyright (C) 2001
5 * Brad Boyer (flar@allandria.com)
6 * (C) 2003 Ardis Technologies <roman@ardistech.com>
7 *
8 * Inode handling routines
9 */
10
11#include <linux/mm.h>
12#include <linux/fs.h>
13#include <linux/pagemap.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#include <linux/mpage.h>
Alexey Dobriyane8edc6e2007-05-21 01:22:52 +040015#include <linux/sched.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070016
17#include "hfsplus_fs.h"
18#include "hfsplus_raw.h"
19
20static int hfsplus_readpage(struct file *file, struct page *page)
21{
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 return block_read_full_page(page, hfsplus_get_block);
23}
24
25static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
26{
Linus Torvalds1da177e2005-04-16 15:20:36 -070027 return block_write_full_page(page, hfsplus_get_block, wbc);
28}
29
30static int hfsplus_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
31{
32 return cont_prepare_write(page, from, to, hfsplus_get_block,
33 &HFSPLUS_I(page->mapping->host).phys_size);
34}
35
36static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
37{
38 return generic_block_bmap(mapping, block, hfsplus_get_block);
39}
40
Al Viro27496a82005-10-21 03:20:48 -040041static int hfsplus_releasepage(struct page *page, gfp_t mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -070042{
43 struct inode *inode = page->mapping->host;
44 struct super_block *sb = inode->i_sb;
45 struct hfs_btree *tree;
46 struct hfs_bnode *node;
47 u32 nidx;
48 int i, res = 1;
49
50 switch (inode->i_ino) {
51 case HFSPLUS_EXT_CNID:
52 tree = HFSPLUS_SB(sb).ext_tree;
53 break;
54 case HFSPLUS_CAT_CNID:
55 tree = HFSPLUS_SB(sb).cat_tree;
56 break;
57 case HFSPLUS_ATTR_CNID:
58 tree = HFSPLUS_SB(sb).attr_tree;
59 break;
60 default:
61 BUG();
62 return 0;
63 }
64 if (tree->node_size >= PAGE_CACHE_SIZE) {
65 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
66 spin_lock(&tree->hash_lock);
67 node = hfs_bnode_findhash(tree, nidx);
68 if (!node)
69 ;
70 else if (atomic_read(&node->refcnt))
71 res = 0;
72 if (res && node) {
73 hfs_bnode_unhash(node);
74 hfs_bnode_free(node);
75 }
76 spin_unlock(&tree->hash_lock);
77 } else {
78 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
79 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
80 spin_lock(&tree->hash_lock);
81 do {
82 node = hfs_bnode_findhash(tree, nidx++);
83 if (!node)
84 continue;
85 if (atomic_read(&node->refcnt)) {
86 res = 0;
87 break;
88 }
89 hfs_bnode_unhash(node);
90 hfs_bnode_free(node);
91 } while (--i && nidx < tree->node_count);
92 spin_unlock(&tree->hash_lock);
93 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 return res ? try_to_free_buffers(page) : 0;
95}
96
Linus Torvalds1da177e2005-04-16 15:20:36 -070097static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
98 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
99{
100 struct file *file = iocb->ki_filp;
Josef Sipekf44ea032006-12-08 02:37:04 -0800101 struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
103 return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
Badari Pulavarty1d8fa7a2006-03-26 01:38:02 -0800104 offset, nr_segs, hfsplus_get_block, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105}
106
107static int hfsplus_writepages(struct address_space *mapping,
108 struct writeback_control *wbc)
109{
110 return mpage_writepages(mapping, wbc, hfsplus_get_block);
111}
112
Christoph Hellwigf5e54d62006-06-28 04:26:44 -0700113const struct address_space_operations hfsplus_btree_aops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 .readpage = hfsplus_readpage,
115 .writepage = hfsplus_writepage,
116 .sync_page = block_sync_page,
117 .prepare_write = hfsplus_prepare_write,
118 .commit_write = generic_commit_write,
119 .bmap = hfsplus_bmap,
120 .releasepage = hfsplus_releasepage,
121};
122
Christoph Hellwigf5e54d62006-06-28 04:26:44 -0700123const struct address_space_operations hfsplus_aops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 .readpage = hfsplus_readpage,
125 .writepage = hfsplus_writepage,
126 .sync_page = block_sync_page,
127 .prepare_write = hfsplus_prepare_write,
128 .commit_write = generic_commit_write,
129 .bmap = hfsplus_bmap,
130 .direct_IO = hfsplus_direct_IO,
131 .writepages = hfsplus_writepages,
132};
133
134static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
135 struct nameidata *nd)
136{
137 struct hfs_find_data fd;
138 struct super_block *sb = dir->i_sb;
139 struct inode *inode = NULL;
140 int err;
141
142 if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
143 goto out;
144
145 inode = HFSPLUS_I(dir).rsrc_inode;
146 if (inode)
147 goto out;
148
149 inode = new_inode(sb);
150 if (!inode)
151 return ERR_PTR(-ENOMEM);
152
153 inode->i_ino = dir->i_ino;
154 INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
155 init_MUTEX(&HFSPLUS_I(inode).extents_lock);
156 HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
157
158 hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
159 err = hfsplus_find_cat(sb, dir->i_ino, &fd);
160 if (!err)
161 err = hfsplus_cat_read_inode(inode, &fd);
162 hfs_find_exit(&fd);
163 if (err) {
164 iput(inode);
165 return ERR_PTR(err);
166 }
167 HFSPLUS_I(inode).rsrc_inode = dir;
168 HFSPLUS_I(dir).rsrc_inode = inode;
169 igrab(dir);
170 hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
171 mark_inode_dirty(inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172out:
173 d_add(dentry, inode);
174 return NULL;
175}
176
177static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
178{
179 struct super_block *sb = inode->i_sb;
180 u16 mode;
181
182 mode = be16_to_cpu(perms->mode);
183
184 inode->i_uid = be32_to_cpu(perms->owner);
185 if (!inode->i_uid && !mode)
186 inode->i_uid = HFSPLUS_SB(sb).uid;
187
188 inode->i_gid = be32_to_cpu(perms->group);
189 if (!inode->i_gid && !mode)
190 inode->i_gid = HFSPLUS_SB(sb).gid;
191
192 if (dir) {
193 mode = mode ? (mode & S_IALLUGO) :
194 (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
195 mode |= S_IFDIR;
196 } else if (!mode)
197 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
198 ~(HFSPLUS_SB(sb).umask));
199 inode->i_mode = mode;
200
201 HFSPLUS_I(inode).rootflags = perms->rootflags;
202 HFSPLUS_I(inode).userflags = perms->userflags;
203 if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
204 inode->i_flags |= S_IMMUTABLE;
205 else
206 inode->i_flags &= ~S_IMMUTABLE;
207 if (perms->rootflags & HFSPLUS_FLG_APPEND)
208 inode->i_flags |= S_APPEND;
209 else
210 inode->i_flags &= ~S_APPEND;
211}
212
213static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
214{
215 if (inode->i_flags & S_IMMUTABLE)
216 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
217 else
218 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
219 if (inode->i_flags & S_APPEND)
220 perms->rootflags |= HFSPLUS_FLG_APPEND;
221 else
222 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
223 perms->userflags = HFSPLUS_I(inode).userflags;
224 perms->mode = cpu_to_be16(inode->i_mode);
225 perms->owner = cpu_to_be32(inode->i_uid);
226 perms->group = cpu_to_be32(inode->i_gid);
227 perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
228}
229
230static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
231{
232 /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
233 * open_exec has the same test, so it's still not executable, if a x bit
234 * is set fall back to standard permission check.
235 */
236 if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
237 return 0;
238 return generic_permission(inode, mask, NULL);
239}
240
241
242static int hfsplus_file_open(struct inode *inode, struct file *file)
243{
244 if (HFSPLUS_IS_RSRC(inode))
245 inode = HFSPLUS_I(inode).rsrc_inode;
246 if (atomic_read(&file->f_count) != 1)
247 return 0;
248 atomic_inc(&HFSPLUS_I(inode).opencnt);
249 return 0;
250}
251
252static int hfsplus_file_release(struct inode *inode, struct file *file)
253{
254 struct super_block *sb = inode->i_sb;
255
256 if (HFSPLUS_IS_RSRC(inode))
257 inode = HFSPLUS_I(inode).rsrc_inode;
258 if (atomic_read(&file->f_count) != 0)
259 return 0;
260 if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800261 mutex_lock(&inode->i_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 hfsplus_file_truncate(inode);
263 if (inode->i_flags & S_DEAD) {
264 hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
265 hfsplus_delete_inode(inode);
266 }
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800267 mutex_unlock(&inode->i_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 }
269 return 0;
270}
271
Arjan van de Ven92e1d5b2007-02-12 00:55:39 -0800272extern const struct inode_operations hfsplus_dir_inode_operations;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273extern struct file_operations hfsplus_dir_operations;
274
Arjan van de Ven92e1d5b2007-02-12 00:55:39 -0800275static const struct inode_operations hfsplus_file_inode_operations = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 .lookup = hfsplus_file_lookup,
277 .truncate = hfsplus_file_truncate,
278 .permission = hfsplus_permission,
279 .setxattr = hfsplus_setxattr,
280 .getxattr = hfsplus_getxattr,
281 .listxattr = hfsplus_listxattr,
282};
283
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -0800284static const struct file_operations hfsplus_file_operations = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 .llseek = generic_file_llseek,
Badari Pulavarty543ade12006-09-30 23:28:48 -0700286 .read = do_sync_read,
287 .aio_read = generic_file_aio_read,
288 .write = do_sync_write,
289 .aio_write = generic_file_aio_write,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290 .mmap = generic_file_mmap,
Jens Axboe5ffc4ef2007-06-01 11:49:19 +0200291 .splice_read = generic_file_splice_read,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 .fsync = file_fsync,
293 .open = hfsplus_file_open,
294 .release = hfsplus_file_release,
295 .ioctl = hfsplus_ioctl,
296};
297
298struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
299{
300 struct inode *inode = new_inode(sb);
301 if (!inode)
302 return NULL;
303
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
305 inode->i_mode = mode;
306 inode->i_uid = current->fsuid;
307 inode->i_gid = current->fsgid;
308 inode->i_nlink = 1;
309 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
311 init_MUTEX(&HFSPLUS_I(inode).extents_lock);
312 atomic_set(&HFSPLUS_I(inode).opencnt, 0);
313 HFSPLUS_I(inode).flags = 0;
314 memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
315 memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
316 HFSPLUS_I(inode).alloc_blocks = 0;
317 HFSPLUS_I(inode).first_blocks = 0;
318 HFSPLUS_I(inode).cached_start = 0;
319 HFSPLUS_I(inode).cached_blocks = 0;
320 HFSPLUS_I(inode).phys_size = 0;
321 HFSPLUS_I(inode).fs_blocks = 0;
322 HFSPLUS_I(inode).rsrc_inode = NULL;
323 if (S_ISDIR(inode->i_mode)) {
324 inode->i_size = 2;
325 HFSPLUS_SB(sb).folder_count++;
326 inode->i_op = &hfsplus_dir_inode_operations;
327 inode->i_fop = &hfsplus_dir_operations;
328 } else if (S_ISREG(inode->i_mode)) {
329 HFSPLUS_SB(sb).file_count++;
330 inode->i_op = &hfsplus_file_inode_operations;
331 inode->i_fop = &hfsplus_file_operations;
332 inode->i_mapping->a_ops = &hfsplus_aops;
333 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
334 } else if (S_ISLNK(inode->i_mode)) {
335 HFSPLUS_SB(sb).file_count++;
336 inode->i_op = &page_symlink_inode_operations;
337 inode->i_mapping->a_ops = &hfsplus_aops;
338 HFSPLUS_I(inode).clump_blocks = 1;
339 } else
340 HFSPLUS_SB(sb).file_count++;
341 insert_inode_hash(inode);
342 mark_inode_dirty(inode);
343 sb->s_dirt = 1;
344
345 return inode;
346}
347
348void hfsplus_delete_inode(struct inode *inode)
349{
350 struct super_block *sb = inode->i_sb;
351
352 if (S_ISDIR(inode->i_mode)) {
353 HFSPLUS_SB(sb).folder_count--;
354 sb->s_dirt = 1;
355 return;
356 }
357 HFSPLUS_SB(sb).file_count--;
358 if (S_ISREG(inode->i_mode)) {
359 if (!inode->i_nlink) {
360 inode->i_size = 0;
361 hfsplus_file_truncate(inode);
362 }
363 } else if (S_ISLNK(inode->i_mode)) {
364 inode->i_size = 0;
365 hfsplus_file_truncate(inode);
366 }
367 sb->s_dirt = 1;
368}
369
370void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
371{
372 struct super_block *sb = inode->i_sb;
373 u32 count;
374 int i;
375
376 memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
377 sizeof(hfsplus_extent_rec));
378 for (count = 0, i = 0; i < 8; i++)
379 count += be32_to_cpu(fork->extents[i].block_count);
380 HFSPLUS_I(inode).first_blocks = count;
381 memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
382 HFSPLUS_I(inode).cached_start = 0;
383 HFSPLUS_I(inode).cached_blocks = 0;
384
385 HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
386 inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
387 HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
388 inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
389 HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
390 if (!HFSPLUS_I(inode).clump_blocks)
391 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
392 HFSPLUS_SB(sb).data_clump_blocks;
393}
394
395void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
396{
397 memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
398 sizeof(hfsplus_extent_rec));
399 fork->total_size = cpu_to_be64(inode->i_size);
400 fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
401}
402
403int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
404{
405 hfsplus_cat_entry entry;
406 int res = 0;
407 u16 type;
408
409 type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
410
411 HFSPLUS_I(inode).dev = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 if (type == HFSPLUS_FOLDER) {
413 struct hfsplus_cat_folder *folder = &entry.folder;
414
415 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
416 /* panic? */;
417 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
418 sizeof(struct hfsplus_cat_folder));
419 hfsplus_get_perms(inode, &folder->permissions, 1);
420 inode->i_nlink = 1;
421 inode->i_size = 2 + be32_to_cpu(folder->valence);
422 inode->i_atime = hfsp_mt2ut(folder->access_date);
423 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
Roman Zippel9a4cad92006-01-18 17:43:09 -0800424 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
425 HFSPLUS_I(inode).create_date = folder->create_date;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 HFSPLUS_I(inode).fs_blocks = 0;
427 inode->i_op = &hfsplus_dir_inode_operations;
428 inode->i_fop = &hfsplus_dir_operations;
429 } else if (type == HFSPLUS_FILE) {
430 struct hfsplus_cat_file *file = &entry.file;
431
432 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
433 /* panic? */;
434 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
435 sizeof(struct hfsplus_cat_file));
436
437 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
438 &file->data_fork : &file->rsrc_fork);
439 hfsplus_get_perms(inode, &file->permissions, 0);
440 inode->i_nlink = 1;
441 if (S_ISREG(inode->i_mode)) {
442 if (file->permissions.dev)
443 inode->i_nlink = be32_to_cpu(file->permissions.dev);
444 inode->i_op = &hfsplus_file_inode_operations;
445 inode->i_fop = &hfsplus_file_operations;
446 inode->i_mapping->a_ops = &hfsplus_aops;
447 } else if (S_ISLNK(inode->i_mode)) {
448 inode->i_op = &page_symlink_inode_operations;
449 inode->i_mapping->a_ops = &hfsplus_aops;
450 } else {
451 init_special_inode(inode, inode->i_mode,
452 be32_to_cpu(file->permissions.dev));
453 }
454 inode->i_atime = hfsp_mt2ut(file->access_date);
455 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
Roman Zippel9a4cad92006-01-18 17:43:09 -0800456 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
457 HFSPLUS_I(inode).create_date = file->create_date;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 } else {
Roman Zippel634725a2006-01-18 17:43:05 -0800459 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 res = -EIO;
461 }
462 return res;
463}
464
465int hfsplus_cat_write_inode(struct inode *inode)
466{
467 struct inode *main_inode = inode;
468 struct hfs_find_data fd;
469 hfsplus_cat_entry entry;
470
471 if (HFSPLUS_IS_RSRC(inode))
472 main_inode = HFSPLUS_I(inode).rsrc_inode;
473
474 if (!main_inode->i_nlink)
475 return 0;
476
477 if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
478 /* panic? */
479 return -EIO;
480
481 if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
482 /* panic? */
483 goto out;
484
485 if (S_ISDIR(main_inode->i_mode)) {
486 struct hfsplus_cat_folder *folder = &entry.folder;
487
488 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
489 /* panic? */;
490 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
491 sizeof(struct hfsplus_cat_folder));
492 /* simple node checks? */
493 hfsplus_set_perms(inode, &folder->permissions);
494 folder->access_date = hfsp_ut2mt(inode->i_atime);
495 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
496 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
497 folder->valence = cpu_to_be32(inode->i_size - 2);
498 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
499 sizeof(struct hfsplus_cat_folder));
500 } else if (HFSPLUS_IS_RSRC(inode)) {
501 struct hfsplus_cat_file *file = &entry.file;
502 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
503 sizeof(struct hfsplus_cat_file));
504 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
505 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
506 sizeof(struct hfsplus_cat_file));
507 } else {
508 struct hfsplus_cat_file *file = &entry.file;
509
510 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
511 /* panic? */;
512 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
513 sizeof(struct hfsplus_cat_file));
514 hfsplus_inode_write_fork(inode, &file->data_fork);
515 if (S_ISREG(inode->i_mode))
516 HFSPLUS_I(inode).dev = inode->i_nlink;
517 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
518 HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
519 hfsplus_set_perms(inode, &file->permissions);
520 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
521 file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
522 else
523 file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
524 file->access_date = hfsp_ut2mt(inode->i_atime);
525 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
526 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
527 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
528 sizeof(struct hfsplus_cat_file));
529 }
530out:
531 hfs_find_exit(&fd);
532 return 0;
533}