git.oblomov.eu Git - linux-2.6/blob - 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 int hfsplus_get_blocks(struct inode *inode, sector_t iblock, unsigned long max_blocks,
  97                               struct buffer_head *bh_result, int create)
  98 {
  99         int ret;
 100
 101         ret = hfsplus_get_block(inode, iblock, bh_result, create);
 102         if (!ret)
 103                 bh_result->b_size = (1 << inode->i_blkbits);
 104         return ret;
 105 }
 106
 107 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
 108                 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
 109 {
 110         struct file *file = iocb->ki_filp;
 111         struct inode *inode = file->f_dentry->d_inode->i_mapping->host;
 112
 113         return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
 114                                   offset, nr_segs, hfsplus_get_blocks, NULL);
 115 }
 116
 117 static int hfsplus_writepages(struct address_space *mapping,
 118                               struct writeback_control *wbc)
 119 {
 120         return mpage_writepages(mapping, wbc, hfsplus_get_block);
 121 }
 122
 123 struct address_space_operations hfsplus_btree_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         .releasepage    = hfsplus_releasepage,
 131 };
 132
 133 struct address_space_operations hfsplus_aops = {
 134         .readpage       = hfsplus_readpage,
 135         .writepage      = hfsplus_writepage,
 136         .sync_page      = block_sync_page,
 137         .prepare_write  = hfsplus_prepare_write,
 138         .commit_write   = generic_commit_write,
 139         .bmap           = hfsplus_bmap,
 140         .direct_IO      = hfsplus_direct_IO,
 141         .writepages     = hfsplus_writepages,
 142 };
 143
 144 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
 145                                           struct nameidata *nd)
 146 {
 147         struct hfs_find_data fd;
 148         struct super_block *sb = dir->i_sb;
 149         struct inode *inode = NULL;
 150         int err;
 151
 152         if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 153                 goto out;
 154
 155         inode = HFSPLUS_I(dir).rsrc_inode;
 156         if (inode)
 157                 goto out;
 158
 159         inode = new_inode(sb);
 160         if (!inode)
 161                 return ERR_PTR(-ENOMEM);
 162
 163         inode->i_ino = dir->i_ino;
 164         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 165         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 166         HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
 167
 168         hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
 169         err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 170         if (!err)
 171                 err = hfsplus_cat_read_inode(inode, &fd);
 172         hfs_find_exit(&fd);
 173         if (err) {
 174                 iput(inode);
 175                 return ERR_PTR(err);
 176         }
 177         HFSPLUS_I(inode).rsrc_inode = dir;
 178         HFSPLUS_I(dir).rsrc_inode = inode;
 179         igrab(dir);
 180         hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
 181         mark_inode_dirty(inode);
 182 out:
 183         d_add(dentry, inode);
 184         return NULL;
 185 }
 186
 187 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
 188 {
 189         struct super_block *sb = inode->i_sb;
 190         u16 mode;
 191
 192         mode = be16_to_cpu(perms->mode);
 193
 194         inode->i_uid = be32_to_cpu(perms->owner);
 195         if (!inode->i_uid && !mode)
 196                 inode->i_uid = HFSPLUS_SB(sb).uid;
 197
 198         inode->i_gid = be32_to_cpu(perms->group);
 199         if (!inode->i_gid && !mode)
 200                 inode->i_gid = HFSPLUS_SB(sb).gid;
 201
 202         if (dir) {
 203                 mode = mode ? (mode & S_IALLUGO) :
 204                         (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
 205                 mode |= S_IFDIR;
 206         } else if (!mode)
 207                 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
 208                         ~(HFSPLUS_SB(sb).umask));
 209         inode->i_mode = mode;
 210
 211         HFSPLUS_I(inode).rootflags = perms->rootflags;
 212         HFSPLUS_I(inode).userflags = perms->userflags;
 213         if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 214                 inode->i_flags |= S_IMMUTABLE;
 215         else
 216                 inode->i_flags &= ~S_IMMUTABLE;
 217         if (perms->rootflags & HFSPLUS_FLG_APPEND)
 218                 inode->i_flags |= S_APPEND;
 219         else
 220                 inode->i_flags &= ~S_APPEND;
 221 }
 222
 223 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
 224 {
 225         if (inode->i_flags & S_IMMUTABLE)
 226                 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
 227         else
 228                 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
 229         if (inode->i_flags & S_APPEND)
 230                 perms->rootflags |= HFSPLUS_FLG_APPEND;
 231         else
 232                 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
 233         perms->userflags = HFSPLUS_I(inode).userflags;
 234         perms->mode = cpu_to_be16(inode->i_mode);
 235         perms->owner = cpu_to_be32(inode->i_uid);
 236         perms->group = cpu_to_be32(inode->i_gid);
 237         perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
 238 }
 239
 240 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
 241 {
 242         /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
 243          * open_exec has the same test, so it's still not executable, if a x bit
 244          * is set fall back to standard permission check.
 245          */
 246         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
 247                 return 0;
 248         return generic_permission(inode, mask, NULL);
 249 }
 250
 251
 252 static int hfsplus_file_open(struct inode *inode, struct file *file)
 253 {
 254         if (HFSPLUS_IS_RSRC(inode))
 255                 inode = HFSPLUS_I(inode).rsrc_inode;
 256         if (atomic_read(&file->f_count) != 1)
 257                 return 0;
 258         atomic_inc(&HFSPLUS_I(inode).opencnt);
 259         return 0;
 260 }
 261
 262 static int hfsplus_file_release(struct inode *inode, struct file *file)
 263 {
 264         struct super_block *sb = inode->i_sb;
 265
 266         if (HFSPLUS_IS_RSRC(inode))
 267                 inode = HFSPLUS_I(inode).rsrc_inode;
 268         if (atomic_read(&file->f_count) != 0)
 269                 return 0;
 270         if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
 271                 mutex_lock(&inode->i_mutex);
 272                 hfsplus_file_truncate(inode);
 273                 if (inode->i_flags & S_DEAD) {
 274                         hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
 275                         hfsplus_delete_inode(inode);
 276                 }
 277                 mutex_unlock(&inode->i_mutex);
 278         }
 279         return 0;
 280 }
 281
 282 extern struct inode_operations hfsplus_dir_inode_operations;
 283 extern struct file_operations hfsplus_dir_operations;
 284
 285 static struct inode_operations hfsplus_file_inode_operations = {
 286         .lookup         = hfsplus_file_lookup,
 287         .truncate       = hfsplus_file_truncate,
 288         .permission     = hfsplus_permission,
 289         .setxattr       = hfsplus_setxattr,
 290         .getxattr       = hfsplus_getxattr,
 291         .listxattr      = hfsplus_listxattr,
 292 };
 293
 294 static struct file_operations hfsplus_file_operations = {
 295         .llseek         = generic_file_llseek,
 296         .read           = generic_file_read,
 297         .write          = generic_file_write,
 298         .mmap           = generic_file_mmap,
 299         .sendfile       = generic_file_sendfile,
 300         .fsync          = file_fsync,
 301         .open           = hfsplus_file_open,
 302         .release        = hfsplus_file_release,
 303         .ioctl          = hfsplus_ioctl,
 304 };
 305
 306 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
 307 {
 308         struct inode *inode = new_inode(sb);
 309         if (!inode)
 310                 return NULL;
 311
 312         inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
 313         inode->i_mode = mode;
 314         inode->i_uid = current->fsuid;
 315         inode->i_gid = current->fsgid;
 316         inode->i_nlink = 1;
 317         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 318         inode->i_blksize = HFSPLUS_SB(sb).alloc_blksz;
 319         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 320         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 321         atomic_set(&HFSPLUS_I(inode).opencnt, 0);
 322         HFSPLUS_I(inode).flags = 0;
 323         memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
 324         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 325         HFSPLUS_I(inode).alloc_blocks = 0;
 326         HFSPLUS_I(inode).first_blocks = 0;
 327         HFSPLUS_I(inode).cached_start = 0;
 328         HFSPLUS_I(inode).cached_blocks = 0;
 329         HFSPLUS_I(inode).phys_size = 0;
 330         HFSPLUS_I(inode).fs_blocks = 0;
 331         HFSPLUS_I(inode).rsrc_inode = NULL;
 332         if (S_ISDIR(inode->i_mode)) {
 333                 inode->i_size = 2;
 334                 HFSPLUS_SB(sb).folder_count++;
 335                 inode->i_op = &hfsplus_dir_inode_operations;
 336                 inode->i_fop = &hfsplus_dir_operations;
 337         } else if (S_ISREG(inode->i_mode)) {
 338                 HFSPLUS_SB(sb).file_count++;
 339                 inode->i_op = &hfsplus_file_inode_operations;
 340                 inode->i_fop = &hfsplus_file_operations;
 341                 inode->i_mapping->a_ops = &hfsplus_aops;
 342                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
 343         } else if (S_ISLNK(inode->i_mode)) {
 344                 HFSPLUS_SB(sb).file_count++;
 345                 inode->i_op = &page_symlink_inode_operations;
 346                 inode->i_mapping->a_ops = &hfsplus_aops;
 347                 HFSPLUS_I(inode).clump_blocks = 1;
 348         } else
 349                 HFSPLUS_SB(sb).file_count++;
 350         insert_inode_hash(inode);
 351         mark_inode_dirty(inode);
 352         sb->s_dirt = 1;
 353
 354         return inode;
 355 }
 356
 357 void hfsplus_delete_inode(struct inode *inode)
 358 {
 359         struct super_block *sb = inode->i_sb;
 360
 361         if (S_ISDIR(inode->i_mode)) {
 362                 HFSPLUS_SB(sb).folder_count--;
 363                 sb->s_dirt = 1;
 364                 return;
 365         }
 366         HFSPLUS_SB(sb).file_count--;
 367         if (S_ISREG(inode->i_mode)) {
 368                 if (!inode->i_nlink) {
 369                         inode->i_size = 0;
 370                         hfsplus_file_truncate(inode);
 371                 }
 372         } else if (S_ISLNK(inode->i_mode)) {
 373                 inode->i_size = 0;
 374                 hfsplus_file_truncate(inode);
 375         }
 376         sb->s_dirt = 1;
 377 }
 378
 379 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 380 {
 381         struct super_block *sb = inode->i_sb;
 382         u32 count;
 383         int i;
 384
 385         memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
 386                sizeof(hfsplus_extent_rec));
 387         for (count = 0, i = 0; i < 8; i++)
 388                 count += be32_to_cpu(fork->extents[i].block_count);
 389         HFSPLUS_I(inode).first_blocks = count;
 390         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 391         HFSPLUS_I(inode).cached_start = 0;
 392         HFSPLUS_I(inode).cached_blocks = 0;
 393
 394         HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
 395         inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
 396         HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 397         inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
 398         HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
 399         if (!HFSPLUS_I(inode).clump_blocks)
 400                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
 401                                 HFSPLUS_SB(sb).data_clump_blocks;
 402 }
 403
 404 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 405 {
 406         memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
 407                sizeof(hfsplus_extent_rec));
 408         fork->total_size = cpu_to_be64(inode->i_size);
 409         fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
 410 }
 411
 412 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 413 {
 414         hfsplus_cat_entry entry;
 415         int res = 0;
 416         u16 type;
 417
 418         type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 419
 420         HFSPLUS_I(inode).dev = 0;
 421         inode->i_blksize = HFSPLUS_SB(inode->i_sb).alloc_blksz;
 422         if (type == HFSPLUS_FOLDER) {
 423                 struct hfsplus_cat_folder *folder = &entry.folder;
 424
 425                 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 426                         /* panic? */;
 427                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 428                                         sizeof(struct hfsplus_cat_folder));
 429                 hfsplus_get_perms(inode, &folder->permissions, 1);
 430                 inode->i_nlink = 1;
 431                 inode->i_size = 2 + be32_to_cpu(folder->valence);
 432                 inode->i_atime = hfsp_mt2ut(folder->access_date);
 433                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 434                 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
 435                 HFSPLUS_I(inode).create_date = folder->create_date;
 436                 HFSPLUS_I(inode).fs_blocks = 0;
 437                 inode->i_op = &hfsplus_dir_inode_operations;
 438                 inode->i_fop = &hfsplus_dir_operations;
 439         } else if (type == HFSPLUS_FILE) {
 440                 struct hfsplus_cat_file *file = &entry.file;
 441
 442                 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 443                         /* panic? */;
 444                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 445                                         sizeof(struct hfsplus_cat_file));
 446
 447                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
 448                                         &file->data_fork : &file->rsrc_fork);
 449                 hfsplus_get_perms(inode, &file->permissions, 0);
 450                 inode->i_nlink = 1;
 451                 if (S_ISREG(inode->i_mode)) {
 452                         if (file->permissions.dev)
 453                                 inode->i_nlink = be32_to_cpu(file->permissions.dev);
 454                         inode->i_op = &hfsplus_file_inode_operations;
 455                         inode->i_fop = &hfsplus_file_operations;
 456                         inode->i_mapping->a_ops = &hfsplus_aops;
 457                 } else if (S_ISLNK(inode->i_mode)) {
 458                         inode->i_op = &page_symlink_inode_operations;
 459                         inode->i_mapping->a_ops = &hfsplus_aops;
 460                 } else {
 461                         init_special_inode(inode, inode->i_mode,
 462                                            be32_to_cpu(file->permissions.dev));
 463                 }
 464                 inode->i_atime = hfsp_mt2ut(file->access_date);
 465                 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 466                 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
 467                 HFSPLUS_I(inode).create_date = file->create_date;
 468         } else {
 469                 printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
 470                 res = -EIO;
 471         }
 472         return res;
 473 }
 474
 475 int hfsplus_cat_write_inode(struct inode *inode)
 476 {
 477         struct inode *main_inode = inode;
 478         struct hfs_find_data fd;
 479         hfsplus_cat_entry entry;
 480
 481         if (HFSPLUS_IS_RSRC(inode))
 482                 main_inode = HFSPLUS_I(inode).rsrc_inode;
 483
 484         if (!main_inode->i_nlink)
 485                 return 0;
 486
 487         if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
 488                 /* panic? */
 489                 return -EIO;
 490
 491         if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 492                 /* panic? */
 493                 goto out;
 494
 495         if (S_ISDIR(main_inode->i_mode)) {
 496                 struct hfsplus_cat_folder *folder = &entry.folder;
 497
 498                 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
 499                         /* panic? */;
 500                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 501                                         sizeof(struct hfsplus_cat_folder));
 502                 /* simple node checks? */
 503                 hfsplus_set_perms(inode, &folder->permissions);
 504                 folder->access_date = hfsp_ut2mt(inode->i_atime);
 505                 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 506                 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 507                 folder->valence = cpu_to_be32(inode->i_size - 2);
 508                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 509                                          sizeof(struct hfsplus_cat_folder));
 510         } else if (HFSPLUS_IS_RSRC(inode)) {
 511                 struct hfsplus_cat_file *file = &entry.file;
 512                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 513                                sizeof(struct hfsplus_cat_file));
 514                 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 515                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 516                                 sizeof(struct hfsplus_cat_file));
 517         } else {
 518                 struct hfsplus_cat_file *file = &entry.file;
 519
 520                 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 521                         /* panic? */;
 522                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 523                                         sizeof(struct hfsplus_cat_file));
 524                 hfsplus_inode_write_fork(inode, &file->data_fork);
 525                 if (S_ISREG(inode->i_mode))
 526                         HFSPLUS_I(inode).dev = inode->i_nlink;
 527                 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
 528                         HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
 529                 hfsplus_set_perms(inode, &file->permissions);
 530                 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
 531                         file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 532                 else
 533                         file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 534                 file->access_date = hfsp_ut2mt(inode->i_atime);
 535                 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 536                 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 537                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 538                                          sizeof(struct hfsplus_cat_file));
 539         }
 540 out:
 541         hfs_find_exit(&fd);
 542         return 0;
 543 }