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