1 /*
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/blkdev.h>
12 #include <linux/mm.h>
13 #include <linux/fs.h>
14 #include <linux/pagemap.h>
15 #include <linux/mpage.h>
16 #include <linux/sched.h>
17
18 #include "hfsplus_fs.h"
19 #include "hfsplus_raw.h"
20
hfsplus_readpage(struct file * file,struct page * page)21 static int hfsplus_readpage(struct file *file, struct page *page)
22 {
23 return block_read_full_page(page, hfsplus_get_block);
24 }
25
hfsplus_writepage(struct page * page,struct writeback_control * wbc)26 static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
27 {
28 return block_write_full_page(page, hfsplus_get_block, wbc);
29 }
30
hfsplus_write_begin(struct file * file,struct address_space * mapping,loff_t pos,unsigned len,unsigned flags,struct page ** pagep,void ** fsdata)31 static int hfsplus_write_begin(struct file *file, struct address_space *mapping,
32 loff_t pos, unsigned len, unsigned flags,
33 struct page **pagep, void **fsdata)
34 {
35 int ret;
36
37 *pagep = NULL;
38 ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
39 hfsplus_get_block,
40 &HFSPLUS_I(mapping->host)->phys_size);
41 if (unlikely(ret)) {
42 loff_t isize = mapping->host->i_size;
43 if (pos + len > isize)
44 vmtruncate(mapping->host, isize);
45 }
46
47 return ret;
48 }
49
hfsplus_bmap(struct address_space * mapping,sector_t block)50 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
51 {
52 return generic_block_bmap(mapping, block, hfsplus_get_block);
53 }
54
hfsplus_releasepage(struct page * page,gfp_t mask)55 static int hfsplus_releasepage(struct page *page, gfp_t mask)
56 {
57 struct inode *inode = page->mapping->host;
58 struct super_block *sb = inode->i_sb;
59 struct hfs_btree *tree;
60 struct hfs_bnode *node;
61 u32 nidx;
62 int i, res = 1;
63
64 switch (inode->i_ino) {
65 case HFSPLUS_EXT_CNID:
66 tree = HFSPLUS_SB(sb)->ext_tree;
67 break;
68 case HFSPLUS_CAT_CNID:
69 tree = HFSPLUS_SB(sb)->cat_tree;
70 break;
71 case HFSPLUS_ATTR_CNID:
72 tree = HFSPLUS_SB(sb)->attr_tree;
73 break;
74 default:
75 BUG();
76 return 0;
77 }
78 if (!tree)
79 return 0;
80 if (tree->node_size >= PAGE_CACHE_SIZE) {
81 nidx = page->index >>
82 (tree->node_size_shift - PAGE_CACHE_SHIFT);
83 spin_lock(&tree->hash_lock);
84 node = hfs_bnode_findhash(tree, nidx);
85 if (!node)
86 ;
87 else if (atomic_read(&node->refcnt))
88 res = 0;
89 if (res && node) {
90 hfs_bnode_unhash(node);
91 hfs_bnode_free(node);
92 }
93 spin_unlock(&tree->hash_lock);
94 } else {
95 nidx = page->index <<
96 (PAGE_CACHE_SHIFT - tree->node_size_shift);
97 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
98 spin_lock(&tree->hash_lock);
99 do {
100 node = hfs_bnode_findhash(tree, nidx++);
101 if (!node)
102 continue;
103 if (atomic_read(&node->refcnt)) {
104 res = 0;
105 break;
106 }
107 hfs_bnode_unhash(node);
108 hfs_bnode_free(node);
109 } while (--i && nidx < tree->node_count);
110 spin_unlock(&tree->hash_lock);
111 }
112 return res ? try_to_free_buffers(page) : 0;
113 }
114
hfsplus_direct_IO(int rw,struct kiocb * iocb,const struct iovec * iov,loff_t offset,unsigned long nr_segs)115 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
116 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
117 {
118 struct file *file = iocb->ki_filp;
119 struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
120 ssize_t ret;
121
122 ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
123 offset, nr_segs, hfsplus_get_block, NULL);
124
125 /*
126 * In case of error extending write may have instantiated a few
127 * blocks outside i_size. Trim these off again.
128 */
129 if (unlikely((rw & WRITE) && ret < 0)) {
130 loff_t isize = i_size_read(inode);
131 loff_t end = offset + iov_length(iov, nr_segs);
132
133 if (end > isize)
134 vmtruncate(inode, isize);
135 }
136
137 return ret;
138 }
139
hfsplus_writepages(struct address_space * mapping,struct writeback_control * wbc)140 static int hfsplus_writepages(struct address_space *mapping,
141 struct writeback_control *wbc)
142 {
143 return mpage_writepages(mapping, wbc, hfsplus_get_block);
144 }
145
146 const struct address_space_operations hfsplus_btree_aops = {
147 .readpage = hfsplus_readpage,
148 .writepage = hfsplus_writepage,
149 .write_begin = hfsplus_write_begin,
150 .write_end = generic_write_end,
151 .bmap = hfsplus_bmap,
152 .releasepage = hfsplus_releasepage,
153 };
154
155 const struct address_space_operations hfsplus_aops = {
156 .readpage = hfsplus_readpage,
157 .writepage = hfsplus_writepage,
158 .write_begin = hfsplus_write_begin,
159 .write_end = generic_write_end,
160 .bmap = hfsplus_bmap,
161 .direct_IO = hfsplus_direct_IO,
162 .writepages = hfsplus_writepages,
163 };
164
165 const struct dentry_operations hfsplus_dentry_operations = {
166 .d_hash = hfsplus_hash_dentry,
167 .d_compare = hfsplus_compare_dentry,
168 };
169
hfsplus_file_lookup(struct inode * dir,struct dentry * dentry,struct nameidata * nd)170 static struct dentry *hfsplus_file_lookup(struct inode *dir,
171 struct dentry *dentry, struct nameidata *nd)
172 {
173 struct hfs_find_data fd;
174 struct super_block *sb = dir->i_sb;
175 struct inode *inode = NULL;
176 struct hfsplus_inode_info *hip;
177 int err;
178
179 if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
180 goto out;
181
182 inode = HFSPLUS_I(dir)->rsrc_inode;
183 if (inode)
184 goto out;
185
186 inode = new_inode(sb);
187 if (!inode)
188 return ERR_PTR(-ENOMEM);
189
190 hip = HFSPLUS_I(inode);
191 inode->i_ino = dir->i_ino;
192 INIT_LIST_HEAD(&hip->open_dir_list);
193 mutex_init(&hip->extents_lock);
194 hip->extent_state = 0;
195 hip->flags = 0;
196 set_bit(HFSPLUS_I_RSRC, &hip->flags);
197
198 hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
199 err = hfsplus_find_cat(sb, dir->i_ino, &fd);
200 if (!err)
201 err = hfsplus_cat_read_inode(inode, &fd);
202 hfs_find_exit(&fd);
203 if (err) {
204 iput(inode);
205 return ERR_PTR(err);
206 }
207 hip->rsrc_inode = dir;
208 HFSPLUS_I(dir)->rsrc_inode = inode;
209 igrab(dir);
210
211 /*
212 * __mark_inode_dirty expects inodes to be hashed. Since we don't
213 * want resource fork inodes in the regular inode space, we make them
214 * appear hashed, but do not put on any lists. hlist_del()
215 * will work fine and require no locking.
216 */
217 hlist_add_fake(&inode->i_hash);
218
219 mark_inode_dirty(inode);
220 out:
221 d_add(dentry, inode);
222 return NULL;
223 }
224
hfsplus_get_perms(struct inode * inode,struct hfsplus_perm * perms,int dir)225 static void hfsplus_get_perms(struct inode *inode,
226 struct hfsplus_perm *perms, int dir)
227 {
228 struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
229 u16 mode;
230
231 mode = be16_to_cpu(perms->mode);
232
233 inode->i_uid = be32_to_cpu(perms->owner);
234 if (!inode->i_uid && !mode)
235 inode->i_uid = sbi->uid;
236
237 inode->i_gid = be32_to_cpu(perms->group);
238 if (!inode->i_gid && !mode)
239 inode->i_gid = sbi->gid;
240
241 if (dir) {
242 mode = mode ? (mode & S_IALLUGO) : (S_IRWXUGO & ~(sbi->umask));
243 mode |= S_IFDIR;
244 } else if (!mode)
245 mode = S_IFREG | ((S_IRUGO|S_IWUGO) & ~(sbi->umask));
246 inode->i_mode = mode;
247
248 HFSPLUS_I(inode)->userflags = perms->userflags;
249 if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
250 inode->i_flags |= S_IMMUTABLE;
251 else
252 inode->i_flags &= ~S_IMMUTABLE;
253 if (perms->rootflags & HFSPLUS_FLG_APPEND)
254 inode->i_flags |= S_APPEND;
255 else
256 inode->i_flags &= ~S_APPEND;
257 }
258
hfsplus_file_open(struct inode * inode,struct file * file)259 static int hfsplus_file_open(struct inode *inode, struct file *file)
260 {
261 if (HFSPLUS_IS_RSRC(inode))
262 inode = HFSPLUS_I(inode)->rsrc_inode;
263 if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
264 return -EOVERFLOW;
265 atomic_inc(&HFSPLUS_I(inode)->opencnt);
266 return 0;
267 }
268
hfsplus_file_release(struct inode * inode,struct file * file)269 static int hfsplus_file_release(struct inode *inode, struct file *file)
270 {
271 struct super_block *sb = inode->i_sb;
272
273 if (HFSPLUS_IS_RSRC(inode))
274 inode = HFSPLUS_I(inode)->rsrc_inode;
275 if (atomic_dec_and_test(&HFSPLUS_I(inode)->opencnt)) {
276 mutex_lock(&inode->i_mutex);
277 hfsplus_file_truncate(inode);
278 if (inode->i_flags & S_DEAD) {
279 hfsplus_delete_cat(inode->i_ino,
280 HFSPLUS_SB(sb)->hidden_dir, NULL);
281 hfsplus_delete_inode(inode);
282 }
283 mutex_unlock(&inode->i_mutex);
284 }
285 return 0;
286 }
287
hfsplus_setattr(struct dentry * dentry,struct iattr * attr)288 static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
289 {
290 struct inode *inode = dentry->d_inode;
291 int error;
292
293 error = inode_change_ok(inode, attr);
294 if (error)
295 return error;
296
297 if ((attr->ia_valid & ATTR_SIZE) &&
298 attr->ia_size != i_size_read(inode)) {
299 error = vmtruncate(inode, attr->ia_size);
300 if (error)
301 return error;
302 }
303
304 setattr_copy(inode, attr);
305 mark_inode_dirty(inode);
306 return 0;
307 }
308
hfsplus_file_fsync(struct file * file,int datasync)309 int hfsplus_file_fsync(struct file *file, int datasync)
310 {
311 struct inode *inode = file->f_mapping->host;
312 struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
313 struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
314 int error = 0, error2;
315
316 /*
317 * Sync inode metadata into the catalog and extent trees.
318 */
319 sync_inode_metadata(inode, 1);
320
321 /*
322 * And explicitly write out the btrees.
323 */
324 if (test_and_clear_bit(HFSPLUS_I_CAT_DIRTY, &hip->flags))
325 error = filemap_write_and_wait(sbi->cat_tree->inode->i_mapping);
326
327 if (test_and_clear_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags)) {
328 error2 =
329 filemap_write_and_wait(sbi->ext_tree->inode->i_mapping);
330 if (!error)
331 error = error2;
332 }
333
334 if (test_and_clear_bit(HFSPLUS_I_ALLOC_DIRTY, &hip->flags)) {
335 error2 = filemap_write_and_wait(sbi->alloc_file->i_mapping);
336 if (!error)
337 error = error2;
338 }
339
340 if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
341 blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
342
343 return error;
344 }
345
346 static const struct inode_operations hfsplus_file_inode_operations = {
347 .lookup = hfsplus_file_lookup,
348 .truncate = hfsplus_file_truncate,
349 .setattr = hfsplus_setattr,
350 .setxattr = hfsplus_setxattr,
351 .getxattr = hfsplus_getxattr,
352 .listxattr = hfsplus_listxattr,
353 };
354
355 static const struct file_operations hfsplus_file_operations = {
356 .llseek = generic_file_llseek,
357 .read = do_sync_read,
358 .aio_read = generic_file_aio_read,
359 .write = do_sync_write,
360 .aio_write = generic_file_aio_write,
361 .mmap = generic_file_mmap,
362 .splice_read = generic_file_splice_read,
363 .fsync = hfsplus_file_fsync,
364 .open = hfsplus_file_open,
365 .release = hfsplus_file_release,
366 .unlocked_ioctl = hfsplus_ioctl,
367 };
368
hfsplus_new_inode(struct super_block * sb,int mode)369 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
370 {
371 struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
372 struct inode *inode = new_inode(sb);
373 struct hfsplus_inode_info *hip;
374
375 if (!inode)
376 return NULL;
377
378 inode->i_ino = sbi->next_cnid++;
379 inode->i_mode = mode;
380 inode->i_uid = current_fsuid();
381 inode->i_gid = current_fsgid();
382 inode->i_nlink = 1;
383 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
384
385 hip = HFSPLUS_I(inode);
386 INIT_LIST_HEAD(&hip->open_dir_list);
387 mutex_init(&hip->extents_lock);
388 atomic_set(&hip->opencnt, 0);
389 hip->extent_state = 0;
390 hip->flags = 0;
391 memset(hip->first_extents, 0, sizeof(hfsplus_extent_rec));
392 memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec));
393 hip->alloc_blocks = 0;
394 hip->first_blocks = 0;
395 hip->cached_start = 0;
396 hip->cached_blocks = 0;
397 hip->phys_size = 0;
398 hip->fs_blocks = 0;
399 hip->rsrc_inode = NULL;
400 if (S_ISDIR(inode->i_mode)) {
401 inode->i_size = 2;
402 sbi->folder_count++;
403 inode->i_op = &hfsplus_dir_inode_operations;
404 inode->i_fop = &hfsplus_dir_operations;
405 } else if (S_ISREG(inode->i_mode)) {
406 sbi->file_count++;
407 inode->i_op = &hfsplus_file_inode_operations;
408 inode->i_fop = &hfsplus_file_operations;
409 inode->i_mapping->a_ops = &hfsplus_aops;
410 hip->clump_blocks = sbi->data_clump_blocks;
411 } else if (S_ISLNK(inode->i_mode)) {
412 sbi->file_count++;
413 inode->i_op = &page_symlink_inode_operations;
414 inode->i_mapping->a_ops = &hfsplus_aops;
415 hip->clump_blocks = 1;
416 } else
417 sbi->file_count++;
418 insert_inode_hash(inode);
419 mark_inode_dirty(inode);
420 sb->s_dirt = 1;
421
422 return inode;
423 }
424
hfsplus_delete_inode(struct inode * inode)425 void hfsplus_delete_inode(struct inode *inode)
426 {
427 struct super_block *sb = inode->i_sb;
428
429 if (S_ISDIR(inode->i_mode)) {
430 HFSPLUS_SB(sb)->folder_count--;
431 sb->s_dirt = 1;
432 return;
433 }
434 HFSPLUS_SB(sb)->file_count--;
435 if (S_ISREG(inode->i_mode)) {
436 if (!inode->i_nlink) {
437 inode->i_size = 0;
438 hfsplus_file_truncate(inode);
439 }
440 } else if (S_ISLNK(inode->i_mode)) {
441 inode->i_size = 0;
442 hfsplus_file_truncate(inode);
443 }
444 sb->s_dirt = 1;
445 }
446
hfsplus_inode_read_fork(struct inode * inode,struct hfsplus_fork_raw * fork)447 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
448 {
449 struct super_block *sb = inode->i_sb;
450 struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
451 struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
452 u32 count;
453 int i;
454
455 memcpy(&hip->first_extents, &fork->extents, sizeof(hfsplus_extent_rec));
456 for (count = 0, i = 0; i < 8; i++)
457 count += be32_to_cpu(fork->extents[i].block_count);
458 hip->first_blocks = count;
459 memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec));
460 hip->cached_start = 0;
461 hip->cached_blocks = 0;
462
463 hip->alloc_blocks = be32_to_cpu(fork->total_blocks);
464 hip->phys_size = inode->i_size = be64_to_cpu(fork->total_size);
465 hip->fs_blocks =
466 (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
467 inode_set_bytes(inode, hip->fs_blocks << sb->s_blocksize_bits);
468 hip->clump_blocks =
469 be32_to_cpu(fork->clump_size) >> sbi->alloc_blksz_shift;
470 if (!hip->clump_blocks) {
471 hip->clump_blocks = HFSPLUS_IS_RSRC(inode) ?
472 sbi->rsrc_clump_blocks :
473 sbi->data_clump_blocks;
474 }
475 }
476
hfsplus_inode_write_fork(struct inode * inode,struct hfsplus_fork_raw * fork)477 void hfsplus_inode_write_fork(struct inode *inode,
478 struct hfsplus_fork_raw *fork)
479 {
480 memcpy(&fork->extents, &HFSPLUS_I(inode)->first_extents,
481 sizeof(hfsplus_extent_rec));
482 fork->total_size = cpu_to_be64(inode->i_size);
483 fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode)->alloc_blocks);
484 }
485
hfsplus_cat_read_inode(struct inode * inode,struct hfs_find_data * fd)486 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
487 {
488 hfsplus_cat_entry entry;
489 int res = 0;
490 u16 type;
491
492 type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
493
494 HFSPLUS_I(inode)->linkid = 0;
495 if (type == HFSPLUS_FOLDER) {
496 struct hfsplus_cat_folder *folder = &entry.folder;
497
498 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
499 /* panic? */;
500 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
501 sizeof(struct hfsplus_cat_folder));
502 hfsplus_get_perms(inode, &folder->permissions, 1);
503 inode->i_nlink = 1;
504 inode->i_size = 2 + be32_to_cpu(folder->valence);
505 inode->i_atime = hfsp_mt2ut(folder->access_date);
506 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
507 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
508 HFSPLUS_I(inode)->create_date = folder->create_date;
509 HFSPLUS_I(inode)->fs_blocks = 0;
510 inode->i_op = &hfsplus_dir_inode_operations;
511 inode->i_fop = &hfsplus_dir_operations;
512 } else if (type == HFSPLUS_FILE) {
513 struct hfsplus_cat_file *file = &entry.file;
514
515 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
516 /* panic? */;
517 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
518 sizeof(struct hfsplus_cat_file));
519
520 hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ?
521 &file->rsrc_fork : &file->data_fork);
522 hfsplus_get_perms(inode, &file->permissions, 0);
523 inode->i_nlink = 1;
524 if (S_ISREG(inode->i_mode)) {
525 if (file->permissions.dev)
526 inode->i_nlink =
527 be32_to_cpu(file->permissions.dev);
528 inode->i_op = &hfsplus_file_inode_operations;
529 inode->i_fop = &hfsplus_file_operations;
530 inode->i_mapping->a_ops = &hfsplus_aops;
531 } else if (S_ISLNK(inode->i_mode)) {
532 inode->i_op = &page_symlink_inode_operations;
533 inode->i_mapping->a_ops = &hfsplus_aops;
534 } else {
535 init_special_inode(inode, inode->i_mode,
536 be32_to_cpu(file->permissions.dev));
537 }
538 inode->i_atime = hfsp_mt2ut(file->access_date);
539 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
540 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
541 HFSPLUS_I(inode)->create_date = file->create_date;
542 } else {
543 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
544 res = -EIO;
545 }
546 return res;
547 }
548
hfsplus_cat_write_inode(struct inode * inode)549 int hfsplus_cat_write_inode(struct inode *inode)
550 {
551 struct inode *main_inode = inode;
552 struct hfs_find_data fd;
553 hfsplus_cat_entry entry;
554
555 if (HFSPLUS_IS_RSRC(inode))
556 main_inode = HFSPLUS_I(inode)->rsrc_inode;
557
558 if (!main_inode->i_nlink)
559 return 0;
560
561 if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb)->cat_tree, &fd))
562 /* panic? */
563 return -EIO;
564
565 if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
566 /* panic? */
567 goto out;
568
569 if (S_ISDIR(main_inode->i_mode)) {
570 struct hfsplus_cat_folder *folder = &entry.folder;
571
572 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
573 /* panic? */;
574 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
575 sizeof(struct hfsplus_cat_folder));
576 /* simple node checks? */
577 hfsplus_cat_set_perms(inode, &folder->permissions);
578 folder->access_date = hfsp_ut2mt(inode->i_atime);
579 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
580 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
581 folder->valence = cpu_to_be32(inode->i_size - 2);
582 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
583 sizeof(struct hfsplus_cat_folder));
584 } else if (HFSPLUS_IS_RSRC(inode)) {
585 struct hfsplus_cat_file *file = &entry.file;
586 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
587 sizeof(struct hfsplus_cat_file));
588 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
589 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
590 sizeof(struct hfsplus_cat_file));
591 } else {
592 struct hfsplus_cat_file *file = &entry.file;
593
594 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
595 /* panic? */;
596 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
597 sizeof(struct hfsplus_cat_file));
598 hfsplus_inode_write_fork(inode, &file->data_fork);
599 hfsplus_cat_set_perms(inode, &file->permissions);
600 if (HFSPLUS_FLG_IMMUTABLE &
601 (file->permissions.rootflags |
602 file->permissions.userflags))
603 file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
604 else
605 file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
606 file->access_date = hfsp_ut2mt(inode->i_atime);
607 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
608 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
609 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
610 sizeof(struct hfsplus_cat_file));
611 }
612
613 set_bit(HFSPLUS_I_CAT_DIRTY, &HFSPLUS_I(inode)->flags);
614 out:
615 hfs_find_exit(&fd);
616 return 0;
617 }
618