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
  16 #include "hfsplus_fs.h"
  17 #include "hfsplus_raw.h"
  18
  19 static int hfsplus_readpage(struct file *file, struct page *page)
  20 {
  21         return block_read_full_page(page, hfsplus_get_block);
  22 }
  23
  24 static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
  25 {
  26         return block_write_full_page(page, hfsplus_get_block, wbc);
  27 }
  28
  29 static int hfsplus_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
  30 {
  31         return cont_prepare_write(page, from, to, hfsplus_get_block,
  32                 &HFSPLUS_I(page->mapping->host).phys_size);
  33 }
  34
  35 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
  36 {
  37         return generic_block_bmap(mapping, block, hfsplus_get_block);
  38 }
  39
  40 static int hfsplus_releasepage(struct page *page, gfp_t mask)
  41 {
  42         struct inode *inode = page->mapping->host;
  43         struct super_block *sb = inode->i_sb;
  44         struct hfs_btree *tree;
  45         struct hfs_bnode *node;
  46         u32 nidx;
  47         int i, res = 1;
  48
  49         switch (inode->i_ino) {
  50         case HFSPLUS_EXT_CNID:
  51                 tree = HFSPLUS_SB(sb).ext_tree;
  52                 break;
  53         case HFSPLUS_CAT_CNID:
  54                 tree = HFSPLUS_SB(sb).cat_tree;
  55                 break;
  56         case HFSPLUS_ATTR_CNID:
  57                 tree = HFSPLUS_SB(sb).attr_tree;
  58                 break;
  59         default:
  60                 BUG();
  61                 return 0;
  62         }
  63         if (tree->node_size >= PAGE_CACHE_SIZE) {
  64                 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
  65                 spin_lock(&tree->hash_lock);
  66                 node = hfs_bnode_findhash(tree, nidx);
  67                 if (!node)
  68                         ;
  69                 else if (atomic_read(&node->refcnt))
  70                         res = 0;
  71                 if (res && node) {
  72                         hfs_bnode_unhash(node);
  73                         hfs_bnode_free(node);
  74                 }
  75                 spin_unlock(&tree->hash_lock);
  76         } else {
  77                 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  78                 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  79                 spin_lock(&tree->hash_lock);
  80                 do {
  81                         node = hfs_bnode_findhash(tree, nidx++);
  82                         if (!node)
  83                                 continue;
  84                         if (atomic_read(&node->refcnt)) {
  85                                 res = 0;
  86                                 break;
  87                         }
  88                         hfs_bnode_unhash(node);
  89                         hfs_bnode_free(node);
  90                 } while (--i && nidx < tree->node_count);
  91                 spin_unlock(&tree->hash_lock);
  92         }
  93         return res ? try_to_free_buffers(page) : 0;
  94 }
  95
  96 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
  97                 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
  98 {
  99         struct file *file = iocb->ki_filp;
 100         struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
 101
 102         return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
 103                                   offset, nr_segs, hfsplus_get_block, NULL);
 104 }
 105
 106 static int hfsplus_writepages(struct address_space *mapping,
 107                               struct writeback_control *wbc)
 108 {
 109         return mpage_writepages(mapping, wbc, hfsplus_get_block);
 110 }
 111
 112 const struct address_space_operations hfsplus_btree_aops = {
 113         .readpage       = hfsplus_readpage,
 114         .writepage      = hfsplus_writepage,
 115         .sync_page      = block_sync_page,
 116         .prepare_write  = hfsplus_prepare_write,
 117         .commit_write   = generic_commit_write,
 118         .bmap           = hfsplus_bmap,
 119         .releasepage    = hfsplus_releasepage,
 120 };
 121
 122 const struct address_space_operations hfsplus_aops = {
 123         .readpage       = hfsplus_readpage,
 124         .writepage      = hfsplus_writepage,
 125         .sync_page      = block_sync_page,
 126         .prepare_write  = hfsplus_prepare_write,
 127         .commit_write   = generic_commit_write,
 128         .bmap           = hfsplus_bmap,
 129         .direct_IO      = hfsplus_direct_IO,
 130         .writepages     = hfsplus_writepages,
 131 };
 132
 133 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
 134                                           struct nameidata *nd)
 135 {
 136         struct hfs_find_data fd;
 137         struct super_block *sb = dir->i_sb;
 138         struct inode *inode = NULL;
 139         int err;
 140
 141         if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 142                 goto out;
 143
 144         inode = HFSPLUS_I(dir).rsrc_inode;
 145         if (inode)
 146                 goto out;
 147
 148         inode = new_inode(sb);
 149         if (!inode)
 150                 return ERR_PTR(-ENOMEM);
 151
 152         inode->i_ino = dir->i_ino;
 153         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 154         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 155         HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
 156
 157         hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
 158         err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 159         if (!err)
 160                 err = hfsplus_cat_read_inode(inode, &fd);
 161         hfs_find_exit(&fd);
 162         if (err) {
 163                 iput(inode);
 164                 return ERR_PTR(err);
 165         }
 166         HFSPLUS_I(inode).rsrc_inode = dir;
 167         HFSPLUS_I(dir).rsrc_inode = inode;
 168         igrab(dir);
 169         hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
 170         mark_inode_dirty(inode);
 171 out:
 172         d_add(dentry, inode);
 173         return NULL;
 174 }
 175
 176 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
 177 {
 178         struct super_block *sb = inode->i_sb;
 179         u16 mode;
 180
 181         mode = be16_to_cpu(perms->mode);
 182
 183         inode->i_uid = be32_to_cpu(perms->owner);
 184         if (!inode->i_uid && !mode)
 185                 inode->i_uid = HFSPLUS_SB(sb).uid;
 186
 187         inode->i_gid = be32_to_cpu(perms->group);
 188         if (!inode->i_gid && !mode)
 189                 inode->i_gid = HFSPLUS_SB(sb).gid;
 190
 191         if (dir) {
 192                 mode = mode ? (mode & S_IALLUGO) :
 193                         (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
 194                 mode |= S_IFDIR;
 195         } else if (!mode)
 196                 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
 197                         ~(HFSPLUS_SB(sb).umask));
 198         inode->i_mode = mode;
 199
 200         HFSPLUS_I(inode).rootflags = perms->rootflags;
 201         HFSPLUS_I(inode).userflags = perms->userflags;
 202         if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 203                 inode->i_flags |= S_IMMUTABLE;
 204         else
 205                 inode->i_flags &= ~S_IMMUTABLE;
 206         if (perms->rootflags & HFSPLUS_FLG_APPEND)
 207                 inode->i_flags |= S_APPEND;
 208         else
 209                 inode->i_flags &= ~S_APPEND;
 210 }
 211
 212 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
 213 {
 214         if (inode->i_flags & S_IMMUTABLE)
 215                 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
 216         else
 217                 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
 218         if (inode->i_flags & S_APPEND)
 219                 perms->rootflags |= HFSPLUS_FLG_APPEND;
 220         else
 221                 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
 222         perms->userflags = HFSPLUS_I(inode).userflags;
 223         perms->mode = cpu_to_be16(inode->i_mode);
 224         perms->owner = cpu_to_be32(inode->i_uid);
 225         perms->group = cpu_to_be32(inode->i_gid);
 226         perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
 227 }
 228
 229 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
 230 {
 231         /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
 232          * open_exec has the same test, so it's still not executable, if a x bit
 233          * is set fall back to standard permission check.
 234          */
 235         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
 236                 return 0;
 237         return generic_permission(inode, mask, NULL);
 238 }
 239
 240
 241 static int hfsplus_file_open(struct inode *inode, struct file *file)
 242 {
 243         if (HFSPLUS_IS_RSRC(inode))
 244                 inode = HFSPLUS_I(inode).rsrc_inode;
 245         if (atomic_read(&file->f_count) != 1)
 246                 return 0;
 247         atomic_inc(&HFSPLUS_I(inode).opencnt);
 248         return 0;
 249 }
 250
 251 static int hfsplus_file_release(struct inode *inode, struct file *file)
 252 {
 253         struct super_block *sb = inode->i_sb;
 254
 255         if (HFSPLUS_IS_RSRC(inode))
 256                 inode = HFSPLUS_I(inode).rsrc_inode;
 257         if (atomic_read(&file->f_count) != 0)
 258                 return 0;
 259         if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
 260                 mutex_lock(&inode->i_mutex);
 261                 hfsplus_file_truncate(inode);
 262                 if (inode->i_flags & S_DEAD) {
 263                         hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
 264                         hfsplus_delete_inode(inode);
 265                 }
 266                 mutex_unlock(&inode->i_mutex);
 267         }
 268         return 0;
 269 }
 270
 271 extern const struct inode_operations hfsplus_dir_inode_operations;
 272 extern struct file_operations hfsplus_dir_operations;
 273
 274 static const struct inode_operations hfsplus_file_inode_operations = {
 275         .lookup         = hfsplus_file_lookup,
 276         .truncate       = hfsplus_file_truncate,
 277         .permission     = hfsplus_permission,
 278         .setxattr       = hfsplus_setxattr,
 279         .getxattr       = hfsplus_getxattr,
 280         .listxattr      = hfsplus_listxattr,
 281 };
 282
 283 static const struct file_operations hfsplus_file_operations = {
 284         .llseek         = generic_file_llseek,
 285         .read           = do_sync_read,
 286         .aio_read       = generic_file_aio_read,
 287         .write          = do_sync_write,
 288         .aio_write      = generic_file_aio_write,
 289         .mmap           = generic_file_mmap,
 290         .sendfile       = generic_file_sendfile,
 291         .fsync          = file_fsync,
 292         .open           = hfsplus_file_open,
 293         .release        = hfsplus_file_release,
 294         .ioctl          = hfsplus_ioctl,
 295 };
 296
 297 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
 298 {
 299         struct inode *inode = new_inode(sb);
 300         if (!inode)
 301                 return NULL;
 302
 303         inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
 304         inode->i_mode = mode;
 305         inode->i_uid = current->fsuid;
 306         inode->i_gid = current->fsgid;
 307         inode->i_nlink = 1;
 308         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 309         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 310         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 311         atomic_set(&HFSPLUS_I(inode).opencnt, 0);
 312         HFSPLUS_I(inode).flags = 0;
 313         memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
 314         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 315         HFSPLUS_I(inode).alloc_blocks = 0;
 316         HFSPLUS_I(inode).first_blocks = 0;
 317         HFSPLUS_I(inode).cached_start = 0;
 318         HFSPLUS_I(inode).cached_blocks = 0;
 319         HFSPLUS_I(inode).phys_size = 0;
 320         HFSPLUS_I(inode).fs_blocks = 0;
 321         HFSPLUS_I(inode).rsrc_inode = NULL;
 322         if (S_ISDIR(inode->i_mode)) {
 323                 inode->i_size = 2;
 324                 HFSPLUS_SB(sb).folder_count++;
 325                 inode->i_op = &hfsplus_dir_inode_operations;
 326                 inode->i_fop = &hfsplus_dir_operations;
 327         } else if (S_ISREG(inode->i_mode)) {
 328                 HFSPLUS_SB(sb).file_count++;
 329                 inode->i_op = &hfsplus_file_inode_operations;
 330                 inode->i_fop = &hfsplus_file_operations;
 331                 inode->i_mapping->a_ops = &hfsplus_aops;
 332                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
 333         } else if (S_ISLNK(inode->i_mode)) {
 334                 HFSPLUS_SB(sb).file_count++;
 335                 inode->i_op = &page_symlink_inode_operations;
 336                 inode->i_mapping->a_ops = &hfsplus_aops;
 337                 HFSPLUS_I(inode).clump_blocks = 1;
 338         } else
 339                 HFSPLUS_SB(sb).file_count++;
 340         insert_inode_hash(inode);
 341         mark_inode_dirty(inode);
 342         sb->s_dirt = 1;
 343
 344         return inode;
 345 }
 346
 347 void hfsplus_delete_inode(struct inode *inode)
 348 {
 349         struct super_block *sb = inode->i_sb;
 350
 351         if (S_ISDIR(inode->i_mode)) {
 352                 HFSPLUS_SB(sb).folder_count--;
 353                 sb->s_dirt = 1;
 354                 return;
 355         }
 356         HFSPLUS_SB(sb).file_count--;
 357         if (S_ISREG(inode->i_mode)) {
 358                 if (!inode->i_nlink) {
 359                         inode->i_size = 0;
 360                         hfsplus_file_truncate(inode);
 361                 }
 362         } else if (S_ISLNK(inode->i_mode)) {
 363                 inode->i_size = 0;
 364                 hfsplus_file_truncate(inode);
 365         }
 366         sb->s_dirt = 1;
 367 }
 368
 369 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 370 {
 371         struct super_block *sb = inode->i_sb;
 372         u32 count;
 373         int i;
 374
 375         memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
 376                sizeof(hfsplus_extent_rec));
 377         for (count = 0, i = 0; i < 8; i++)
 378                 count += be32_to_cpu(fork->extents[i].block_count);
 379         HFSPLUS_I(inode).first_blocks = count;
 380         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 381         HFSPLUS_I(inode).cached_start = 0;
 382         HFSPLUS_I(inode).cached_blocks = 0;
 383
 384         HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
 385         inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
 386         HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 387         inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
 388         HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
 389         if (!HFSPLUS_I(inode).clump_blocks)
 390                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
 391                                 HFSPLUS_SB(sb).data_clump_blocks;
 392 }
 393
 394 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 395 {
 396         memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
 397                sizeof(hfsplus_extent_rec));
 398         fork->total_size = cpu_to_be64(inode->i_size);
 399         fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
 400 }
 401
 402 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 403 {
 404         hfsplus_cat_entry entry;
 405         int res = 0;
 406         u16 type;
 407
 408         type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 409
 410         HFSPLUS_I(inode).dev = 0;
 411         if (type == HFSPLUS_FOLDER) {
 412                 struct hfsplus_cat_folder *folder = &entry.folder;
 413
 414                 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 415                         /* panic? */;
 416                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 417                                         sizeof(struct hfsplus_cat_folder));
 418                 hfsplus_get_perms(inode, &folder->permissions, 1);
 419                 inode->i_nlink = 1;
 420                 inode->i_size = 2 + be32_to_cpu(folder->valence);
 421                 inode->i_atime = hfsp_mt2ut(folder->access_date);
 422                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 423                 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
 424                 HFSPLUS_I(inode).create_date = folder->create_date;
 425                 HFSPLUS_I(inode).fs_blocks = 0;
 426                 inode->i_op = &hfsplus_dir_inode_operations;
 427                 inode->i_fop = &hfsplus_dir_operations;
 428         } else if (type == HFSPLUS_FILE) {
 429                 struct hfsplus_cat_file *file = &entry.file;
 430
 431                 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 432                         /* panic? */;
 433                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 434                                         sizeof(struct hfsplus_cat_file));
 435
 436                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
 437                                         &file->data_fork : &file->rsrc_fork);
 438                 hfsplus_get_perms(inode, &file->permissions, 0);
 439                 inode->i_nlink = 1;
 440                 if (S_ISREG(inode->i_mode)) {
 441                         if (file->permissions.dev)
 442                                 inode->i_nlink = be32_to_cpu(file->permissions.dev);
 443                         inode->i_op = &hfsplus_file_inode_operations;
 444                         inode->i_fop = &hfsplus_file_operations;
 445                         inode->i_mapping->a_ops = &hfsplus_aops;
 446                 } else if (S_ISLNK(inode->i_mode)) {
 447                         inode->i_op = &page_symlink_inode_operations;
 448                         inode->i_mapping->a_ops = &hfsplus_aops;
 449                 } else {
 450                         init_special_inode(inode, inode->i_mode,
 451                                            be32_to_cpu(file->permissions.dev));
 452                 }
 453                 inode->i_atime = hfsp_mt2ut(file->access_date);
 454                 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 455                 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
 456                 HFSPLUS_I(inode).create_date = file->create_date;
 457         } else {
 458                 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
 459                 res = -EIO;
 460         }
 461         return res;
 462 }
 463
 464 int hfsplus_cat_write_inode(struct inode *inode)
 465 {
 466         struct inode *main_inode = inode;
 467         struct hfs_find_data fd;
 468         hfsplus_cat_entry entry;
 469
 470         if (HFSPLUS_IS_RSRC(inode))
 471                 main_inode = HFSPLUS_I(inode).rsrc_inode;
 472
 473         if (!main_inode->i_nlink)
 474                 return 0;
 475
 476         if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
 477                 /* panic? */
 478                 return -EIO;
 479
 480         if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 481                 /* panic? */
 482                 goto out;
 483
 484         if (S_ISDIR(main_inode->i_mode)) {
 485                 struct hfsplus_cat_folder *folder = &entry.folder;
 486
 487                 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
 488                         /* panic? */;
 489                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 490                                         sizeof(struct hfsplus_cat_folder));
 491                 /* simple node checks? */
 492                 hfsplus_set_perms(inode, &folder->permissions);
 493                 folder->access_date = hfsp_ut2mt(inode->i_atime);
 494                 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 495                 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 496                 folder->valence = cpu_to_be32(inode->i_size - 2);
 497                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 498                                          sizeof(struct hfsplus_cat_folder));
 499         } else if (HFSPLUS_IS_RSRC(inode)) {
 500                 struct hfsplus_cat_file *file = &entry.file;
 501                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 502                                sizeof(struct hfsplus_cat_file));
 503                 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 504                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 505                                 sizeof(struct hfsplus_cat_file));
 506         } else {
 507                 struct hfsplus_cat_file *file = &entry.file;
 508
 509                 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 510                         /* panic? */;
 511                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 512                                         sizeof(struct hfsplus_cat_file));
 513                 hfsplus_inode_write_fork(inode, &file->data_fork);
 514                 if (S_ISREG(inode->i_mode))
 515                         HFSPLUS_I(inode).dev = inode->i_nlink;
 516                 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
 517                         HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
 518                 hfsplus_set_perms(inode, &file->permissions);
 519                 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
 520                         file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 521                 else
 522                         file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 523                 file->access_date = hfsp_ut2mt(inode->i_atime);
 524                 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 525                 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 526                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 527                                          sizeof(struct hfsplus_cat_file));
 528         }
 529 out:
 530         hfs_find_exit(&fd);
 531         return 0;
 532 }