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 struct dentry_operations hfsplus_dentry_operations = {
 135         .d_hash       = hfsplus_hash_dentry,
 136         .d_compare    = hfsplus_compare_dentry,
 137 };
 138
 139 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
 140                                           struct nameidata *nd)
 141 {
 142         struct hfs_find_data fd;
 143         struct super_block *sb = dir->i_sb;
 144         struct inode *inode = NULL;
 145         int err;
 146
 147         if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 148                 goto out;
 149
 150         inode = HFSPLUS_I(dir).rsrc_inode;
 151         if (inode)
 152                 goto out;
 153
 154         inode = new_inode(sb);
 155         if (!inode)
 156                 return ERR_PTR(-ENOMEM);
 157
 158         inode->i_ino = dir->i_ino;
 159         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 160         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 161         HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
 162
 163         hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
 164         err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 165         if (!err)
 166                 err = hfsplus_cat_read_inode(inode, &fd);
 167         hfs_find_exit(&fd);
 168         if (err) {
 169                 iput(inode);
 170                 return ERR_PTR(err);
 171         }
 172         HFSPLUS_I(inode).rsrc_inode = dir;
 173         HFSPLUS_I(dir).rsrc_inode = inode;
 174         igrab(dir);
 175         hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
 176         mark_inode_dirty(inode);
 177 out:
 178         d_add(dentry, inode);
 179         return NULL;
 180 }
 181
 182 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
 183 {
 184         struct super_block *sb = inode->i_sb;
 185         u16 mode;
 186
 187         mode = be16_to_cpu(perms->mode);
 188
 189         inode->i_uid = be32_to_cpu(perms->owner);
 190         if (!inode->i_uid && !mode)
 191                 inode->i_uid = HFSPLUS_SB(sb).uid;
 192
 193         inode->i_gid = be32_to_cpu(perms->group);
 194         if (!inode->i_gid && !mode)
 195                 inode->i_gid = HFSPLUS_SB(sb).gid;
 196
 197         if (dir) {
 198                 mode = mode ? (mode & S_IALLUGO) :
 199                         (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
 200                 mode |= S_IFDIR;
 201         } else if (!mode)
 202                 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
 203                         ~(HFSPLUS_SB(sb).umask));
 204         inode->i_mode = mode;
 205
 206         HFSPLUS_I(inode).rootflags = perms->rootflags;
 207         HFSPLUS_I(inode).userflags = perms->userflags;
 208         if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 209                 inode->i_flags |= S_IMMUTABLE;
 210         else
 211                 inode->i_flags &= ~S_IMMUTABLE;
 212         if (perms->rootflags & HFSPLUS_FLG_APPEND)
 213                 inode->i_flags |= S_APPEND;
 214         else
 215                 inode->i_flags &= ~S_APPEND;
 216 }
 217
 218 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
 219 {
 220         if (inode->i_flags & S_IMMUTABLE)
 221                 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
 222         else
 223                 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
 224         if (inode->i_flags & S_APPEND)
 225                 perms->rootflags |= HFSPLUS_FLG_APPEND;
 226         else
 227                 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
 228         perms->userflags = HFSPLUS_I(inode).userflags;
 229         perms->mode = cpu_to_be16(inode->i_mode);
 230         perms->owner = cpu_to_be32(inode->i_uid);
 231         perms->group = cpu_to_be32(inode->i_gid);
 232         perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
 233 }
 234
 235 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
 236 {
 237         /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
 238          * open_exec has the same test, so it's still not executable, if a x bit
 239          * is set fall back to standard permission check.
 240          */
 241         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
 242                 return 0;
 243         return generic_permission(inode, mask, NULL);
 244 }
 245
 246
 247 static int hfsplus_file_open(struct inode *inode, struct file *file)
 248 {
 249         if (HFSPLUS_IS_RSRC(inode))
 250                 inode = HFSPLUS_I(inode).rsrc_inode;
 251         if (atomic_read(&file->f_count) != 1)
 252                 return 0;
 253         atomic_inc(&HFSPLUS_I(inode).opencnt);
 254         return 0;
 255 }
 256
 257 static int hfsplus_file_release(struct inode *inode, struct file *file)
 258 {
 259         struct super_block *sb = inode->i_sb;
 260
 261         if (HFSPLUS_IS_RSRC(inode))
 262                 inode = HFSPLUS_I(inode).rsrc_inode;
 263         if (atomic_read(&file->f_count) != 0)
 264                 return 0;
 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 extern const struct inode_operations hfsplus_dir_inode_operations;
 278 extern struct file_operations hfsplus_dir_operations;
 279
 280 static const struct inode_operations hfsplus_file_inode_operations = {
 281         .lookup         = hfsplus_file_lookup,
 282         .truncate       = hfsplus_file_truncate,
 283         .permission     = hfsplus_permission,
 284         .setxattr       = hfsplus_setxattr,
 285         .getxattr       = hfsplus_getxattr,
 286         .listxattr      = hfsplus_listxattr,
 287 };
 288
 289 static const struct file_operations hfsplus_file_operations = {
 290         .llseek         = generic_file_llseek,
 291         .read           = do_sync_read,
 292         .aio_read       = generic_file_aio_read,
 293         .write          = do_sync_write,
 294         .aio_write      = generic_file_aio_write,
 295         .mmap           = generic_file_mmap,
 296         .splice_read    = generic_file_splice_read,
 297         .fsync          = file_fsync,
 298         .open           = hfsplus_file_open,
 299         .release        = hfsplus_file_release,
 300         .ioctl          = hfsplus_ioctl,
 301 };
 302
 303 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
 304 {
 305         struct inode *inode = new_inode(sb);
 306         if (!inode)
 307                 return NULL;
 308
 309         inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
 310         inode->i_mode = mode;
 311         inode->i_uid = current->fsuid;
 312         inode->i_gid = current->fsgid;
 313         inode->i_nlink = 1;
 314         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 315         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 316         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 317         atomic_set(&HFSPLUS_I(inode).opencnt, 0);
 318         HFSPLUS_I(inode).flags = 0;
 319         memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
 320         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 321         HFSPLUS_I(inode).alloc_blocks = 0;
 322         HFSPLUS_I(inode).first_blocks = 0;
 323         HFSPLUS_I(inode).cached_start = 0;
 324         HFSPLUS_I(inode).cached_blocks = 0;
 325         HFSPLUS_I(inode).phys_size = 0;
 326         HFSPLUS_I(inode).fs_blocks = 0;
 327         HFSPLUS_I(inode).rsrc_inode = NULL;
 328         if (S_ISDIR(inode->i_mode)) {
 329                 inode->i_size = 2;
 330                 HFSPLUS_SB(sb).folder_count++;
 331                 inode->i_op = &hfsplus_dir_inode_operations;
 332                 inode->i_fop = &hfsplus_dir_operations;
 333         } else if (S_ISREG(inode->i_mode)) {
 334                 HFSPLUS_SB(sb).file_count++;
 335                 inode->i_op = &hfsplus_file_inode_operations;
 336                 inode->i_fop = &hfsplus_file_operations;
 337                 inode->i_mapping->a_ops = &hfsplus_aops;
 338                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
 339         } else if (S_ISLNK(inode->i_mode)) {
 340                 HFSPLUS_SB(sb).file_count++;
 341                 inode->i_op = &page_symlink_inode_operations;
 342                 inode->i_mapping->a_ops = &hfsplus_aops;
 343                 HFSPLUS_I(inode).clump_blocks = 1;
 344         } else
 345                 HFSPLUS_SB(sb).file_count++;
 346         insert_inode_hash(inode);
 347         mark_inode_dirty(inode);
 348         sb->s_dirt = 1;
 349
 350         return inode;
 351 }
 352
 353 void hfsplus_delete_inode(struct inode *inode)
 354 {
 355         struct super_block *sb = inode->i_sb;
 356
 357         if (S_ISDIR(inode->i_mode)) {
 358                 HFSPLUS_SB(sb).folder_count--;
 359                 sb->s_dirt = 1;
 360                 return;
 361         }
 362         HFSPLUS_SB(sb).file_count--;
 363         if (S_ISREG(inode->i_mode)) {
 364                 if (!inode->i_nlink) {
 365                         inode->i_size = 0;
 366                         hfsplus_file_truncate(inode);
 367                 }
 368         } else if (S_ISLNK(inode->i_mode)) {
 369                 inode->i_size = 0;
 370                 hfsplus_file_truncate(inode);
 371         }
 372         sb->s_dirt = 1;
 373 }
 374
 375 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 376 {
 377         struct super_block *sb = inode->i_sb;
 378         u32 count;
 379         int i;
 380
 381         memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
 382                sizeof(hfsplus_extent_rec));
 383         for (count = 0, i = 0; i < 8; i++)
 384                 count += be32_to_cpu(fork->extents[i].block_count);
 385         HFSPLUS_I(inode).first_blocks = count;
 386         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 387         HFSPLUS_I(inode).cached_start = 0;
 388         HFSPLUS_I(inode).cached_blocks = 0;
 389
 390         HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
 391         inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
 392         HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 393         inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
 394         HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
 395         if (!HFSPLUS_I(inode).clump_blocks)
 396                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
 397                                 HFSPLUS_SB(sb).data_clump_blocks;
 398 }
 399
 400 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 401 {
 402         memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
 403                sizeof(hfsplus_extent_rec));
 404         fork->total_size = cpu_to_be64(inode->i_size);
 405         fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
 406 }
 407
 408 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 409 {
 410         hfsplus_cat_entry entry;
 411         int res = 0;
 412         u16 type;
 413
 414         type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 415
 416         HFSPLUS_I(inode).dev = 0;
 417         if (type == HFSPLUS_FOLDER) {
 418                 struct hfsplus_cat_folder *folder = &entry.folder;
 419
 420                 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 421                         /* panic? */;
 422                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 423                                         sizeof(struct hfsplus_cat_folder));
 424                 hfsplus_get_perms(inode, &folder->permissions, 1);
 425                 inode->i_nlink = 1;
 426                 inode->i_size = 2 + be32_to_cpu(folder->valence);
 427                 inode->i_atime = hfsp_mt2ut(folder->access_date);
 428                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 429                 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
 430                 HFSPLUS_I(inode).create_date = folder->create_date;
 431                 HFSPLUS_I(inode).fs_blocks = 0;
 432                 inode->i_op = &hfsplus_dir_inode_operations;
 433                 inode->i_fop = &hfsplus_dir_operations;
 434         } else if (type == HFSPLUS_FILE) {
 435                 struct hfsplus_cat_file *file = &entry.file;
 436
 437                 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 438                         /* panic? */;
 439                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 440                                         sizeof(struct hfsplus_cat_file));
 441
 442                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
 443                                         &file->data_fork : &file->rsrc_fork);
 444                 hfsplus_get_perms(inode, &file->permissions, 0);
 445                 inode->i_nlink = 1;
 446                 if (S_ISREG(inode->i_mode)) {
 447                         if (file->permissions.dev)
 448                                 inode->i_nlink = be32_to_cpu(file->permissions.dev);
 449                         inode->i_op = &hfsplus_file_inode_operations;
 450                         inode->i_fop = &hfsplus_file_operations;
 451                         inode->i_mapping->a_ops = &hfsplus_aops;
 452                 } else if (S_ISLNK(inode->i_mode)) {
 453                         inode->i_op = &page_symlink_inode_operations;
 454                         inode->i_mapping->a_ops = &hfsplus_aops;
 455                 } else {
 456                         init_special_inode(inode, inode->i_mode,
 457                                            be32_to_cpu(file->permissions.dev));
 458                 }
 459                 inode->i_atime = hfsp_mt2ut(file->access_date);
 460                 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 461                 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
 462                 HFSPLUS_I(inode).create_date = file->create_date;
 463         } else {
 464                 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
 465                 res = -EIO;
 466         }
 467         return res;
 468 }
 469
 470 int hfsplus_cat_write_inode(struct inode *inode)
 471 {
 472         struct inode *main_inode = inode;
 473         struct hfs_find_data fd;
 474         hfsplus_cat_entry entry;
 475
 476         if (HFSPLUS_IS_RSRC(inode))
 477                 main_inode = HFSPLUS_I(inode).rsrc_inode;
 478
 479         if (!main_inode->i_nlink)
 480                 return 0;
 481
 482         if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
 483                 /* panic? */
 484                 return -EIO;
 485
 486         if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 487                 /* panic? */
 488                 goto out;
 489
 490         if (S_ISDIR(main_inode->i_mode)) {
 491                 struct hfsplus_cat_folder *folder = &entry.folder;
 492
 493                 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
 494                         /* panic? */;
 495                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 496                                         sizeof(struct hfsplus_cat_folder));
 497                 /* simple node checks? */
 498                 hfsplus_set_perms(inode, &folder->permissions);
 499                 folder->access_date = hfsp_ut2mt(inode->i_atime);
 500                 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 501                 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 502                 folder->valence = cpu_to_be32(inode->i_size - 2);
 503                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 504                                          sizeof(struct hfsplus_cat_folder));
 505         } else if (HFSPLUS_IS_RSRC(inode)) {
 506                 struct hfsplus_cat_file *file = &entry.file;
 507                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 508                                sizeof(struct hfsplus_cat_file));
 509                 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 510                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 511                                 sizeof(struct hfsplus_cat_file));
 512         } else {
 513                 struct hfsplus_cat_file *file = &entry.file;
 514
 515                 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 516                         /* panic? */;
 517                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 518                                         sizeof(struct hfsplus_cat_file));
 519                 hfsplus_inode_write_fork(inode, &file->data_fork);
 520                 if (S_ISREG(inode->i_mode))
 521                         HFSPLUS_I(inode).dev = inode->i_nlink;
 522                 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
 523                         HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
 524                 hfsplus_set_perms(inode, &file->permissions);
 525                 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
 526                         file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 527                 else
 528                         file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 529                 file->access_date = hfsp_ut2mt(inode->i_atime);
 530                 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 531                 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 532                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 533                                          sizeof(struct hfsplus_cat_file));
 534         }
 535 out:
 536         hfs_find_exit(&fd);
 537         return 0;
 538 }