release/src-rt-6.x/linux/linux-2.6/fs/hfsplus/inode.c

   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/mm.h>
  12 #include <linux/fs.h>
  13 #include <linux/pagemap.h>
  14 #include <linux/mpage.h>
  15 #include <linux/sched.h>
  16
  17 #include "hfsplus_fs.h"
  18 #include "hfsplus_raw.h"
  19
  20 static int hfsplus_readpage(struct file *file, struct page *page)
  21 {
  22         return block_read_full_page(page, hfsplus_get_block);
  23 }
  24
  25 static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
  26 {
  27         return block_write_full_page(page, hfsplus_get_block, wbc);
  28 }
  29
  30 static 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
  36 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
  37 {
  38         return generic_block_bmap(mapping, block, hfsplus_get_block);
  39 }
  40
  41 static int hfsplus_releasepage(struct page *page, gfp_t mask)
  42 {
  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)
  65                 return 0;
  66         if (tree->node_size >= PAGE_CACHE_SIZE) {
  67                 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
  68                 spin_lock(&tree->hash_lock);
  69                 node = hfs_bnode_findhash(tree, nidx);
  70                 if (!node)
  71                         ;
  72                 else if (atomic_read(&node->refcnt))
  73                         res = 0;
  74                 if (res && node) {
  75                         hfs_bnode_unhash(node);
  76                         hfs_bnode_free(node);
  77                 }
  78                 spin_unlock(&tree->hash_lock);
  79         } else {
  80                 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  81                 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  82                 spin_lock(&tree->hash_lock);
  83                 do {
  84                         node = hfs_bnode_findhash(tree, nidx++);
  85                         if (!node)
  86                                 continue;
  87                         if (atomic_read(&node->refcnt)) {
  88                                 res = 0;
  89                                 break;
  90                         }
  91                         hfs_bnode_unhash(node);
  92                         hfs_bnode_free(node);
  93                 } while (--i && nidx < tree->node_count);
  94                 spin_unlock(&tree->hash_lock);
  95         }
  96         return res ? try_to_free_buffers(page) : 0;
  97 }
  98
  99 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
 100                 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
 101 {
 102         struct file *file = iocb->ki_filp;
 103         struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
 104
 105         return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
 106                                   offset, nr_segs, hfsplus_get_block, NULL);
 107 }
 108
 109 static int hfsplus_writepages(struct address_space *mapping,
 110                               struct writeback_control *wbc)
 111 {
 112         return mpage_writepages(mapping, wbc, hfsplus_get_block);
 113 }
 114
 115 const struct address_space_operations hfsplus_btree_aops = {
 116         .readpage       = hfsplus_readpage,
 117         .writepage      = hfsplus_writepage,
 118         .sync_page      = block_sync_page,
 119         .prepare_write  = hfsplus_prepare_write,
 120         .commit_write   = generic_commit_write,
 121         .bmap           = hfsplus_bmap,
 122         .releasepage    = hfsplus_releasepage,
 123 };
 124
 125 const struct address_space_operations hfsplus_aops = {
 126         .readpage       = hfsplus_readpage,
 127         .writepage      = hfsplus_writepage,
 128         .sync_page      = block_sync_page,
 129         .prepare_write  = hfsplus_prepare_write,
 130         .commit_write   = generic_commit_write,
 131         .bmap           = hfsplus_bmap,
 132         .direct_IO      = hfsplus_direct_IO,
 133         .writepages     = hfsplus_writepages,
 134 };
 135
 136 struct dentry_operations hfsplus_dentry_operations = {
 137         .d_hash       = hfsplus_hash_dentry,
 138         .d_compare    = hfsplus_compare_dentry,
 139 };
 140
 141 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
 142                                           struct nameidata *nd)
 143 {
 144         struct hfs_find_data fd;
 145         struct super_block *sb = dir->i_sb;
 146         struct inode *inode = NULL;
 147         int err;
 148
 149         if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 150                 goto out;
 151
 152         inode = HFSPLUS_I(dir).rsrc_inode;
 153         if (inode)
 154                 goto out;
 155
 156         inode = new_inode(sb);
 157         if (!inode)
 158                 return ERR_PTR(-ENOMEM);
 159
 160         inode->i_ino = dir->i_ino;
 161         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 162         mutex_init(&HFSPLUS_I(inode).extents_lock);
 163         HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
 164
 165         hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
 166         err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 167         if (!err)
 168                 err = hfsplus_cat_read_inode(inode, &fd);
 169         hfs_find_exit(&fd);
 170         if (err) {
 171                 iput(inode);
 172                 return ERR_PTR(err);
 173         }
 174         HFSPLUS_I(inode).rsrc_inode = dir;
 175         HFSPLUS_I(dir).rsrc_inode = inode;
 176         igrab(dir);
 177         hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
 178         mark_inode_dirty(inode);
 179 out:
 180         d_add(dentry, inode);
 181         return NULL;
 182 }
 183
 184 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
 185 {
 186         struct super_block *sb = inode->i_sb;
 187         u16 mode;
 188
 189         mode = be16_to_cpu(perms->mode);
 190
 191         inode->i_uid = be32_to_cpu(perms->owner);
 192         if (!inode->i_uid && !mode)
 193                 inode->i_uid = HFSPLUS_SB(sb).uid;
 194
 195         inode->i_gid = be32_to_cpu(perms->group);
 196         if (!inode->i_gid && !mode)
 197                 inode->i_gid = HFSPLUS_SB(sb).gid;
 198
 199         if (dir) {
 200                 mode = mode ? (mode & S_IALLUGO) :
 201                         (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
 202                 mode |= S_IFDIR;
 203         } else if (!mode)
 204                 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
 205                         ~(HFSPLUS_SB(sb).umask));
 206         inode->i_mode = mode;
 207
 208         HFSPLUS_I(inode).rootflags = perms->rootflags;
 209         HFSPLUS_I(inode).userflags = perms->userflags;
 210         if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 211                 inode->i_flags |= S_IMMUTABLE;
 212         else
 213                 inode->i_flags &= ~S_IMMUTABLE;
 214         if (perms->rootflags & HFSPLUS_FLG_APPEND)
 215                 inode->i_flags |= S_APPEND;
 216         else
 217                 inode->i_flags &= ~S_APPEND;
 218 }
 219
 220 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
 221 {
 222         if (inode->i_flags & S_IMMUTABLE)
 223                 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
 224         else
 225                 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
 226         if (inode->i_flags & S_APPEND)
 227                 perms->rootflags |= HFSPLUS_FLG_APPEND;
 228         else
 229                 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
 230         perms->userflags = HFSPLUS_I(inode).userflags;
 231         perms->mode = cpu_to_be16(inode->i_mode);
 232         perms->owner = cpu_to_be32(inode->i_uid);
 233         perms->group = cpu_to_be32(inode->i_gid);
 234         perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
 235 }
 236
 237 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
 238 {
 239         /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
 240          * open_exec has the same test, so it's still not executable, if a x bit
 241          * is set fall back to standard permission check.
 242          */
 243         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
 244                 return 0;
 245         return generic_permission(inode, mask, NULL);
 246 }
 247
 248
 249 static int hfsplus_file_open(struct inode *inode, struct file *file)
 250 {
 251         if (HFSPLUS_IS_RSRC(inode))
 252                 inode = HFSPLUS_I(inode).rsrc_inode;
 253         if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
 254                 return -EOVERFLOW;
 255         atomic_inc(&HFSPLUS_I(inode).opencnt);
 256         return 0;
 257 }
 258
 259 static int hfsplus_file_release(struct inode *inode, struct file *file)
 260 {
 261         struct super_block *sb = inode->i_sb;
 262
 263         if (HFSPLUS_IS_RSRC(inode))
 264                 inode = HFSPLUS_I(inode).rsrc_inode;
 265         if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
 266                 mutex_lock(&inode->i_mutex);
 267                 hfsplus_file_truncate(inode);
 268                 if (inode->i_flags & S_DEAD) {
 269                         hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
 270                         hfsplus_delete_inode(inode);
 271                 }
 272                 mutex_unlock(&inode->i_mutex);
 273         }
 274         return 0;
 275 }
 276
 277 static const struct inode_operations hfsplus_file_inode_operations = {
 278         .lookup         = hfsplus_file_lookup,
 279         .truncate       = hfsplus_file_truncate,
 280         .permission     = hfsplus_permission,
 281         .setxattr       = hfsplus_setxattr,
 282         .getxattr       = hfsplus_getxattr,
 283         .listxattr      = hfsplus_listxattr,
 284 };
 285
 286 static const struct file_operations hfsplus_file_operations = {
 287         .llseek         = generic_file_llseek,
 288         .read           = do_sync_read,
 289         .aio_read       = generic_file_aio_read,
 290         .write          = do_sync_write,
 291         .aio_write      = generic_file_aio_write,
 292         .mmap           = generic_file_mmap,
 293         .splice_read    = generic_file_splice_read,
 294         .fsync          = file_fsync,
 295         .open           = hfsplus_file_open,
 296         .release        = hfsplus_file_release,
 297         .ioctl          = hfsplus_ioctl,
 298 };
 299
 300 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
 301 {
 302         struct inode *inode = new_inode(sb);
 303         if (!inode)
 304                 return NULL;
 305
 306         inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
 307         inode->i_mode = mode;
 308         inode->i_uid = current->fsuid;
 309         inode->i_gid = current->fsgid;
 310         inode->i_nlink = 1;
 311         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 312         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 313         mutex_init(&HFSPLUS_I(inode).extents_lock);
 314         atomic_set(&HFSPLUS_I(inode).opencnt, 0);
 315         HFSPLUS_I(inode).flags = 0;
 316         memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
 317         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 318         HFSPLUS_I(inode).alloc_blocks = 0;
 319         HFSPLUS_I(inode).first_blocks = 0;
 320         HFSPLUS_I(inode).cached_start = 0;
 321         HFSPLUS_I(inode).cached_blocks = 0;
 322         HFSPLUS_I(inode).phys_size = 0;
 323         HFSPLUS_I(inode).fs_blocks = 0;
 324         HFSPLUS_I(inode).rsrc_inode = NULL;
 325         if (S_ISDIR(inode->i_mode)) {
 326                 inode->i_size = 2;
 327                 HFSPLUS_SB(sb).folder_count++;
 328                 inode->i_op = &hfsplus_dir_inode_operations;
 329                 inode->i_fop = &hfsplus_dir_operations;
 330         } else if (S_ISREG(inode->i_mode)) {
 331                 HFSPLUS_SB(sb).file_count++;
 332                 inode->i_op = &hfsplus_file_inode_operations;
 333                 inode->i_fop = &hfsplus_file_operations;
 334                 inode->i_mapping->a_ops = &hfsplus_aops;
 335                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
 336         } else if (S_ISLNK(inode->i_mode)) {
 337                 HFSPLUS_SB(sb).file_count++;
 338                 inode->i_op = &page_symlink_inode_operations;
 339                 inode->i_mapping->a_ops = &hfsplus_aops;
 340                 HFSPLUS_I(inode).clump_blocks = 1;
 341         } else
 342                 HFSPLUS_SB(sb).file_count++;
 343         insert_inode_hash(inode);
 344         mark_inode_dirty(inode);
 345         sb->s_dirt = 1;
 346
 347         return inode;
 348 }
 349
 350 void hfsplus_delete_inode(struct inode *inode)
 351 {
 352         struct super_block *sb = inode->i_sb;
 353
 354         if (S_ISDIR(inode->i_mode)) {
 355                 HFSPLUS_SB(sb).folder_count--;
 356                 sb->s_dirt = 1;
 357                 return;
 358         }
 359         HFSPLUS_SB(sb).file_count--;
 360         if (S_ISREG(inode->i_mode)) {
 361                 if (!inode->i_nlink) {
 362                         inode->i_size = 0;
 363                         hfsplus_file_truncate(inode);
 364                 }
 365         } else if (S_ISLNK(inode->i_mode)) {
 366                 inode->i_size = 0;
 367                 hfsplus_file_truncate(inode);
 368         }
 369         sb->s_dirt = 1;
 370 }
 371
 372 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 373 {
 374         struct super_block *sb = inode->i_sb;
 375         u32 count;
 376         int i;
 377
 378         memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
 379                sizeof(hfsplus_extent_rec));
 380         for (count = 0, i = 0; i < 8; i++)
 381                 count += be32_to_cpu(fork->extents[i].block_count);
 382         HFSPLUS_I(inode).first_blocks = count;
 383         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 384         HFSPLUS_I(inode).cached_start = 0;
 385         HFSPLUS_I(inode).cached_blocks = 0;
 386
 387         HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
 388         inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
 389         HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 390         inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
 391         HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
 392         if (!HFSPLUS_I(inode).clump_blocks)
 393                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
 394                                 HFSPLUS_SB(sb).data_clump_blocks;
 395 }
 396
 397 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 398 {
 399         memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
 400                sizeof(hfsplus_extent_rec));
 401         fork->total_size = cpu_to_be64(inode->i_size);
 402         fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
 403 }
 404
 405 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 406 {
 407         hfsplus_cat_entry entry;
 408         int res = 0;
 409         u16 type;
 410
 411         type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 412
 413         HFSPLUS_I(inode).dev = 0;
 414         if (type == HFSPLUS_FOLDER) {
 415                 struct hfsplus_cat_folder *folder = &entry.folder;
 416
 417                 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 418                         /* panic? */;
 419                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 420                                         sizeof(struct hfsplus_cat_folder));
 421                 hfsplus_get_perms(inode, &folder->permissions, 1);
 422                 inode->i_nlink = 1;
 423                 inode->i_size = 2 + be32_to_cpu(folder->valence);
 424                 inode->i_atime = hfsp_mt2ut(folder->access_date);
 425                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 426                 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
 427                 HFSPLUS_I(inode).create_date = folder->create_date;
 428                 HFSPLUS_I(inode).fs_blocks = 0;
 429                 inode->i_op = &hfsplus_dir_inode_operations;
 430                 inode->i_fop = &hfsplus_dir_operations;
 431         } else if (type == HFSPLUS_FILE) {
 432                 struct hfsplus_cat_file *file = &entry.file;
 433
 434                 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 435                         /* panic? */;
 436                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 437                                         sizeof(struct hfsplus_cat_file));
 438
 439                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
 440                                         &file->data_fork : &file->rsrc_fork);
 441                 hfsplus_get_perms(inode, &file->permissions, 0);
 442                 inode->i_nlink = 1;
 443                 if (S_ISREG(inode->i_mode)) {
 444                         if (file->permissions.dev)
 445                                 inode->i_nlink = be32_to_cpu(file->permissions.dev);
 446                         inode->i_op = &hfsplus_file_inode_operations;
 447                         inode->i_fop = &hfsplus_file_operations;
 448                         inode->i_mapping->a_ops = &hfsplus_aops;
 449                 } else if (S_ISLNK(inode->i_mode)) {
 450                         inode->i_op = &page_symlink_inode_operations;
 451                         inode->i_mapping->a_ops = &hfsplus_aops;
 452                 } else {
 453                         init_special_inode(inode, inode->i_mode,
 454                                            be32_to_cpu(file->permissions.dev));
 455                 }
 456                 inode->i_atime = hfsp_mt2ut(file->access_date);
 457                 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 458                 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
 459                 HFSPLUS_I(inode).create_date = file->create_date;
 460         } else {
 461                 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
 462                 res = -EIO;
 463         }
 464         return res;
 465 }
 466
 467 int hfsplus_cat_write_inode(struct inode *inode)
 468 {
 469         struct inode *main_inode = inode;
 470         struct hfs_find_data fd;
 471         hfsplus_cat_entry entry;
 472
 473         if (HFSPLUS_IS_RSRC(inode))
 474                 main_inode = HFSPLUS_I(inode).rsrc_inode;
 475
 476         if (!main_inode->i_nlink)
 477                 return 0;
 478
 479         if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
 480                 /* panic? */
 481                 return -EIO;
 482
 483         if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 484                 /* panic? */
 485                 goto out;
 486
 487         if (S_ISDIR(main_inode->i_mode)) {
 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                 /* simple node checks? */
 495                 hfsplus_set_perms(inode, &folder->permissions);
 496                 folder->access_date = hfsp_ut2mt(inode->i_atime);
 497                 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 498                 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 499                 folder->valence = cpu_to_be32(inode->i_size - 2);
 500                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 501                                          sizeof(struct hfsplus_cat_folder));
 502         } else if (HFSPLUS_IS_RSRC(inode)) {
 503                 struct hfsplus_cat_file *file = &entry.file;
 504                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 505                                sizeof(struct hfsplus_cat_file));
 506                 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 507                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 508                                 sizeof(struct hfsplus_cat_file));
 509         } else {
 510                 struct hfsplus_cat_file *file = &entry.file;
 511
 512                 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 513                         /* panic? */;
 514                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 515                                         sizeof(struct hfsplus_cat_file));
 516                 hfsplus_inode_write_fork(inode, &file->data_fork);
 517                 if (S_ISREG(inode->i_mode))
 518                         HFSPLUS_I(inode).dev = inode->i_nlink;
 519                 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
 520                         HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
 521                 hfsplus_set_perms(inode, &file->permissions);
 522                 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
 523                         file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 524                 else
 525                         file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 526                 file->access_date = hfsp_ut2mt(inode->i_atime);
 527                 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 528                 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 529                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 530                                          sizeof(struct hfsplus_cat_file));
 531         }
 532 out:
 533         hfs_find_exit(&fd);
 534         return 0;
 535 }