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_write_begin(struct file *file, struct address_space *mapping,
  31                         loff_t pos, unsigned len, unsigned flags,
  32                         struct page **pagep, void **fsdata)
  33 {
  34         *pagep = NULL;
  35         return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
  36                                 hfsplus_get_block,
  37                                 &HFSPLUS_I(mapping->host).phys_size);
  38 }
  39
  40 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
  41 {
  42         return generic_block_bmap(mapping, block, hfsplus_get_block);
  43 }
  44
  45 static int hfsplus_releasepage(struct page *page, gfp_t mask)
  46 {
  47         struct inode *inode = page->mapping->host;
  48         struct super_block *sb = inode->i_sb;
  49         struct hfs_btree *tree;
  50         struct hfs_bnode *node;
  51         u32 nidx;
  52         int i, res = 1;
  53
  54         switch (inode->i_ino) {
  55         case HFSPLUS_EXT_CNID:
  56                 tree = HFSPLUS_SB(sb).ext_tree;
  57                 break;
  58         case HFSPLUS_CAT_CNID:
  59                 tree = HFSPLUS_SB(sb).cat_tree;
  60                 break;
  61         case HFSPLUS_ATTR_CNID:
  62                 tree = HFSPLUS_SB(sb).attr_tree;
  63                 break;
  64         default:
  65                 BUG();
  66                 return 0;
  67         }
  68         if (tree->node_size >= PAGE_CACHE_SIZE) {
  69                 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
  70                 spin_lock(&tree->hash_lock);
  71                 node = hfs_bnode_findhash(tree, nidx);
  72                 if (!node)
  73                         ;
  74                 else if (atomic_read(&node->refcnt))
  75                         res = 0;
  76                 if (res && node) {
  77                         hfs_bnode_unhash(node);
  78                         hfs_bnode_free(node);
  79                 }
  80                 spin_unlock(&tree->hash_lock);
  81         } else {
  82                 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  83                 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  84                 spin_lock(&tree->hash_lock);
  85                 do {
  86                         node = hfs_bnode_findhash(tree, nidx++);
  87                         if (!node)
  88                                 continue;
  89                         if (atomic_read(&node->refcnt)) {
  90                                 res = 0;
  91                                 break;
  92                         }
  93                         hfs_bnode_unhash(node);
  94                         hfs_bnode_free(node);
  95                 } while (--i && nidx < tree->node_count);
  96                 spin_unlock(&tree->hash_lock);
  97         }
  98         return res ? try_to_free_buffers(page) : 0;
  99 }
 100
 101 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
 102                 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
 103 {
 104         struct file *file = iocb->ki_filp;
 105         struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
 106
 107         return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
 108                                   offset, nr_segs, hfsplus_get_block, NULL);
 109 }
 110
 111 static int hfsplus_writepages(struct address_space *mapping,
 112                               struct writeback_control *wbc)
 113 {
 114         return mpage_writepages(mapping, wbc, hfsplus_get_block);
 115 }
 116
 117 const struct address_space_operations hfsplus_btree_aops = {
 118         .readpage       = hfsplus_readpage,
 119         .writepage      = hfsplus_writepage,
 120         .sync_page      = block_sync_page,
 121         .write_begin    = hfsplus_write_begin,
 122         .write_end      = generic_write_end,
 123         .bmap           = hfsplus_bmap,
 124         .releasepage    = hfsplus_releasepage,
 125 };
 126
 127 const struct address_space_operations hfsplus_aops = {
 128         .readpage       = hfsplus_readpage,
 129         .writepage      = hfsplus_writepage,
 130         .sync_page      = block_sync_page,
 131         .write_begin    = hfsplus_write_begin,
 132         .write_end      = generic_write_end,
 133         .bmap           = hfsplus_bmap,
 134         .direct_IO      = hfsplus_direct_IO,
 135         .writepages     = hfsplus_writepages,
 136 };
 137
 138 struct dentry_operations hfsplus_dentry_operations = {
 139         .d_hash       = hfsplus_hash_dentry,
 140         .d_compare    = hfsplus_compare_dentry,
 141 };
 142
 143 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
 144                                           struct nameidata *nd)
 145 {
 146         struct hfs_find_data fd;
 147         struct super_block *sb = dir->i_sb;
 148         struct inode *inode = NULL;
 149         int err;
 150
 151         if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 152                 goto out;
 153
 154         inode = HFSPLUS_I(dir).rsrc_inode;
 155         if (inode)
 156                 goto out;
 157
 158         inode = new_inode(sb);
 159         if (!inode)
 160                 return ERR_PTR(-ENOMEM);
 161
 162         inode->i_ino = dir->i_ino;
 163         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 164         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 165         HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
 166
 167         hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
 168         err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 169         if (!err)
 170                 err = hfsplus_cat_read_inode(inode, &fd);
 171         hfs_find_exit(&fd);
 172         if (err) {
 173                 iput(inode);
 174                 return ERR_PTR(err);
 175         }
 176         HFSPLUS_I(inode).rsrc_inode = dir;
 177         HFSPLUS_I(dir).rsrc_inode = inode;
 178         igrab(dir);
 179         hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
 180         mark_inode_dirty(inode);
 181 out:
 182         d_add(dentry, inode);
 183         return NULL;
 184 }
 185
 186 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
 187 {
 188         struct super_block *sb = inode->i_sb;
 189         u16 mode;
 190
 191         mode = be16_to_cpu(perms->mode);
 192
 193         inode->i_uid = be32_to_cpu(perms->owner);
 194         if (!inode->i_uid && !mode)
 195                 inode->i_uid = HFSPLUS_SB(sb).uid;
 196
 197         inode->i_gid = be32_to_cpu(perms->group);
 198         if (!inode->i_gid && !mode)
 199                 inode->i_gid = HFSPLUS_SB(sb).gid;
 200
 201         if (dir) {
 202                 mode = mode ? (mode & S_IALLUGO) :
 203                         (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
 204                 mode |= S_IFDIR;
 205         } else if (!mode)
 206                 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
 207                         ~(HFSPLUS_SB(sb).umask));
 208         inode->i_mode = mode;
 209
 210         HFSPLUS_I(inode).rootflags = perms->rootflags;
 211         HFSPLUS_I(inode).userflags = perms->userflags;
 212         if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 213                 inode->i_flags |= S_IMMUTABLE;
 214         else
 215                 inode->i_flags &= ~S_IMMUTABLE;
 216         if (perms->rootflags & HFSPLUS_FLG_APPEND)
 217                 inode->i_flags |= S_APPEND;
 218         else
 219                 inode->i_flags &= ~S_APPEND;
 220 }
 221
 222 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
 223 {
 224         if (inode->i_flags & S_IMMUTABLE)
 225                 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
 226         else
 227                 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
 228         if (inode->i_flags & S_APPEND)
 229                 perms->rootflags |= HFSPLUS_FLG_APPEND;
 230         else
 231                 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
 232         perms->userflags = HFSPLUS_I(inode).userflags;
 233         perms->mode = cpu_to_be16(inode->i_mode);
 234         perms->owner = cpu_to_be32(inode->i_uid);
 235         perms->group = cpu_to_be32(inode->i_gid);
 236         perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
 237 }
 238
 239 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
 240 {
 241         /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
 242          * open_exec has the same test, so it's still not executable, if a x bit
 243          * is set fall back to standard permission check.
 244          */
 245         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
 246                 return 0;
 247         return generic_permission(inode, mask, NULL);
 248 }
 249
 250
 251 static int hfsplus_file_open(struct inode *inode, struct file *file)
 252 {
 253         if (HFSPLUS_IS_RSRC(inode))
 254                 inode = HFSPLUS_I(inode).rsrc_inode;
 255         if (atomic_read(&file->f_count) != 1)
 256                 return 0;
 257         atomic_inc(&HFSPLUS_I(inode).opencnt);
 258         return 0;
 259 }
 260
 261 static int hfsplus_file_release(struct inode *inode, struct file *file)
 262 {
 263         struct super_block *sb = inode->i_sb;
 264
 265         if (HFSPLUS_IS_RSRC(inode))
 266                 inode = HFSPLUS_I(inode).rsrc_inode;
 267         if (atomic_read(&file->f_count) != 0)
 268                 return 0;
 269         if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
 270                 mutex_lock(&inode->i_mutex);
 271                 hfsplus_file_truncate(inode);
 272                 if (inode->i_flags & S_DEAD) {
 273                         hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
 274                         hfsplus_delete_inode(inode);
 275                 }
 276                 mutex_unlock(&inode->i_mutex);
 277         }
 278         return 0;
 279 }
 280
 281 static const struct inode_operations hfsplus_file_inode_operations = {
 282         .lookup         = hfsplus_file_lookup,
 283         .truncate       = hfsplus_file_truncate,
 284         .permission     = hfsplus_permission,
 285         .setxattr       = hfsplus_setxattr,
 286         .getxattr       = hfsplus_getxattr,
 287         .listxattr      = hfsplus_listxattr,
 288 };
 289
 290 static const struct file_operations hfsplus_file_operations = {
 291         .llseek         = generic_file_llseek,
 292         .read           = do_sync_read,
 293         .aio_read       = generic_file_aio_read,
 294         .write          = do_sync_write,
 295         .aio_write      = generic_file_aio_write,
 296         .mmap           = generic_file_mmap,
 297         .splice_read    = generic_file_splice_read,
 298         .fsync          = file_fsync,
 299         .open           = hfsplus_file_open,
 300         .release        = hfsplus_file_release,
 301         .ioctl          = hfsplus_ioctl,
 302 };
 303
 304 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
 305 {
 306         struct inode *inode = new_inode(sb);
 307         if (!inode)
 308                 return NULL;
 309
 310         inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
 311         inode->i_mode = mode;
 312         inode->i_uid = current->fsuid;
 313         inode->i_gid = current->fsgid;
 314         inode->i_nlink = 1;
 315         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 316         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 317         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 318         atomic_set(&HFSPLUS_I(inode).opencnt, 0);
 319         HFSPLUS_I(inode).flags = 0;
 320         memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
 321         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 322         HFSPLUS_I(inode).alloc_blocks = 0;
 323         HFSPLUS_I(inode).first_blocks = 0;
 324         HFSPLUS_I(inode).cached_start = 0;
 325         HFSPLUS_I(inode).cached_blocks = 0;
 326         HFSPLUS_I(inode).phys_size = 0;
 327         HFSPLUS_I(inode).fs_blocks = 0;
 328         HFSPLUS_I(inode).rsrc_inode = NULL;
 329         if (S_ISDIR(inode->i_mode)) {
 330                 inode->i_size = 2;
 331                 HFSPLUS_SB(sb).folder_count++;
 332                 inode->i_op = &hfsplus_dir_inode_operations;
 333                 inode->i_fop = &hfsplus_dir_operations;
 334         } else if (S_ISREG(inode->i_mode)) {
 335                 HFSPLUS_SB(sb).file_count++;
 336                 inode->i_op = &hfsplus_file_inode_operations;
 337                 inode->i_fop = &hfsplus_file_operations;
 338                 inode->i_mapping->a_ops = &hfsplus_aops;
 339                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
 340         } else if (S_ISLNK(inode->i_mode)) {
 341                 HFSPLUS_SB(sb).file_count++;
 342                 inode->i_op = &page_symlink_inode_operations;
 343                 inode->i_mapping->a_ops = &hfsplus_aops;
 344                 HFSPLUS_I(inode).clump_blocks = 1;
 345         } else
 346                 HFSPLUS_SB(sb).file_count++;
 347         insert_inode_hash(inode);
 348         mark_inode_dirty(inode);
 349         sb->s_dirt = 1;
 350
 351         return inode;
 352 }
 353
 354 void hfsplus_delete_inode(struct inode *inode)
 355 {
 356         struct super_block *sb = inode->i_sb;
 357
 358         if (S_ISDIR(inode->i_mode)) {
 359                 HFSPLUS_SB(sb).folder_count--;
 360                 sb->s_dirt = 1;
 361                 return;
 362         }
 363         HFSPLUS_SB(sb).file_count--;
 364         if (S_ISREG(inode->i_mode)) {
 365                 if (!inode->i_nlink) {
 366                         inode->i_size = 0;
 367                         hfsplus_file_truncate(inode);
 368                 }
 369         } else if (S_ISLNK(inode->i_mode)) {
 370                 inode->i_size = 0;
 371                 hfsplus_file_truncate(inode);
 372         }
 373         sb->s_dirt = 1;
 374 }
 375
 376 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 377 {
 378         struct super_block *sb = inode->i_sb;
 379         u32 count;
 380         int i;
 381
 382         memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
 383                sizeof(hfsplus_extent_rec));
 384         for (count = 0, i = 0; i < 8; i++)
 385                 count += be32_to_cpu(fork->extents[i].block_count);
 386         HFSPLUS_I(inode).first_blocks = count;
 387         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 388         HFSPLUS_I(inode).cached_start = 0;
 389         HFSPLUS_I(inode).cached_blocks = 0;
 390
 391         HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
 392         inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
 393         HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 394         inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
 395         HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
 396         if (!HFSPLUS_I(inode).clump_blocks)
 397                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
 398                                 HFSPLUS_SB(sb).data_clump_blocks;
 399 }
 400
 401 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 402 {
 403         memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
 404                sizeof(hfsplus_extent_rec));
 405         fork->total_size = cpu_to_be64(inode->i_size);
 406         fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
 407 }
 408
 409 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 410 {
 411         hfsplus_cat_entry entry;
 412         int res = 0;
 413         u16 type;
 414
 415         type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 416
 417         HFSPLUS_I(inode).dev = 0;
 418         if (type == HFSPLUS_FOLDER) {
 419                 struct hfsplus_cat_folder *folder = &entry.folder;
 420
 421                 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 422                         /* panic? */;
 423                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 424                                         sizeof(struct hfsplus_cat_folder));
 425                 hfsplus_get_perms(inode, &folder->permissions, 1);
 426                 inode->i_nlink = 1;
 427                 inode->i_size = 2 + be32_to_cpu(folder->valence);
 428                 inode->i_atime = hfsp_mt2ut(folder->access_date);
 429                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 430                 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
 431                 HFSPLUS_I(inode).create_date = folder->create_date;
 432                 HFSPLUS_I(inode).fs_blocks = 0;
 433                 inode->i_op = &hfsplus_dir_inode_operations;
 434                 inode->i_fop = &hfsplus_dir_operations;
 435         } else if (type == HFSPLUS_FILE) {
 436                 struct hfsplus_cat_file *file = &entry.file;
 437
 438                 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 439                         /* panic? */;
 440                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 441                                         sizeof(struct hfsplus_cat_file));
 442
 443                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
 444                                         &file->data_fork : &file->rsrc_fork);
 445                 hfsplus_get_perms(inode, &file->permissions, 0);
 446                 inode->i_nlink = 1;
 447                 if (S_ISREG(inode->i_mode)) {
 448                         if (file->permissions.dev)
 449                                 inode->i_nlink = be32_to_cpu(file->permissions.dev);
 450                         inode->i_op = &hfsplus_file_inode_operations;
 451                         inode->i_fop = &hfsplus_file_operations;
 452                         inode->i_mapping->a_ops = &hfsplus_aops;
 453                 } else if (S_ISLNK(inode->i_mode)) {
 454                         inode->i_op = &page_symlink_inode_operations;
 455                         inode->i_mapping->a_ops = &hfsplus_aops;
 456                 } else {
 457                         init_special_inode(inode, inode->i_mode,
 458                                            be32_to_cpu(file->permissions.dev));
 459                 }
 460                 inode->i_atime = hfsp_mt2ut(file->access_date);
 461                 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 462                 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
 463                 HFSPLUS_I(inode).create_date = file->create_date;
 464         } else {
 465                 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
 466                 res = -EIO;
 467         }
 468         return res;
 469 }
 470
 471 int hfsplus_cat_write_inode(struct inode *inode)
 472 {
 473         struct inode *main_inode = inode;
 474         struct hfs_find_data fd;
 475         hfsplus_cat_entry entry;
 476
 477         if (HFSPLUS_IS_RSRC(inode))
 478                 main_inode = HFSPLUS_I(inode).rsrc_inode;
 479
 480         if (!main_inode->i_nlink)
 481                 return 0;
 482
 483         if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
 484                 /* panic? */
 485                 return -EIO;
 486
 487         if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 488                 /* panic? */
 489                 goto out;
 490
 491         if (S_ISDIR(main_inode->i_mode)) {
 492                 struct hfsplus_cat_folder *folder = &entry.folder;
 493
 494                 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
 495                         /* panic? */;
 496                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 497                                         sizeof(struct hfsplus_cat_folder));
 498                 /* simple node checks? */
 499                 hfsplus_set_perms(inode, &folder->permissions);
 500                 folder->access_date = hfsp_ut2mt(inode->i_atime);
 501                 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 502                 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 503                 folder->valence = cpu_to_be32(inode->i_size - 2);
 504                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 505                                          sizeof(struct hfsplus_cat_folder));
 506         } else if (HFSPLUS_IS_RSRC(inode)) {
 507                 struct hfsplus_cat_file *file = &entry.file;
 508                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 509                                sizeof(struct hfsplus_cat_file));
 510                 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 511                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 512                                 sizeof(struct hfsplus_cat_file));
 513         } else {
 514                 struct hfsplus_cat_file *file = &entry.file;
 515
 516                 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 517                         /* panic? */;
 518                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 519                                         sizeof(struct hfsplus_cat_file));
 520                 hfsplus_inode_write_fork(inode, &file->data_fork);
 521                 if (S_ISREG(inode->i_mode))
 522                         HFSPLUS_I(inode).dev = inode->i_nlink;
 523                 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
 524                         HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
 525                 hfsplus_set_perms(inode, &file->permissions);
 526                 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
 527                         file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 528                 else
 529                         file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 530                 file->access_date = hfsp_ut2mt(inode->i_atime);
 531                 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 532                 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 533                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 534                                          sizeof(struct hfsplus_cat_file));
 535         }
 536 out:
 537         hfs_find_exit(&fd);
 538         return 0;
 539 }