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TOMOYO Linux Cross Reference
Linux/fs/hfsplus/inode.c

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

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