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         //printk("readpage: %lu\n", page->index);
  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         //printk("writepage: %lu\n", page->index);
  28         return block_write_full_page(page, hfsplus_get_block, wbc);
  29 }
  30
  31 static int hfsplus_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
  32 {
  33         return cont_prepare_write(page, from, to, hfsplus_get_block,
  34                 &HFSPLUS_I(page->mapping->host).phys_size);
  35 }
  36
  37 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
  38 {
  39         return generic_block_bmap(mapping, block, hfsplus_get_block);
  40 }
  41
  42 static int hfsplus_releasepage(struct page *page, gfp_t mask)
  43 {
  44         struct inode *inode = page->mapping->host;
  45         struct super_block *sb = inode->i_sb;
  46         struct hfs_btree *tree;
  47         struct hfs_bnode *node;
  48         u32 nidx;
  49         int i, res = 1;
  50
  51         switch (inode->i_ino) {
  52         case HFSPLUS_EXT_CNID:
  53                 tree = HFSPLUS_SB(sb).ext_tree;
  54                 break;
  55         case HFSPLUS_CAT_CNID:
  56                 tree = HFSPLUS_SB(sb).cat_tree;
  57                 break;
  58         case HFSPLUS_ATTR_CNID:
  59                 tree = HFSPLUS_SB(sb).attr_tree;
  60                 break;
  61         default:
  62                 BUG();
  63                 return 0;
  64         }
  65         if (tree->node_size >= PAGE_CACHE_SIZE) {
  66                 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
  67                 spin_lock(&tree->hash_lock);
  68                 node = hfs_bnode_findhash(tree, nidx);
  69                 if (!node)
  70                         ;
  71                 else if (atomic_read(&node->refcnt))
  72                         res = 0;
  73                 if (res && node) {
  74                         hfs_bnode_unhash(node);
  75                         hfs_bnode_free(node);
  76                 }
  77                 spin_unlock(&tree->hash_lock);
  78         } else {
  79                 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  80                 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  81                 spin_lock(&tree->hash_lock);
  82                 do {
  83                         node = hfs_bnode_findhash(tree, nidx++);
  84                         if (!node)
  85                                 continue;
  86                         if (atomic_read(&node->refcnt)) {
  87                                 res = 0;
  88                                 break;
  89                         }
  90                         hfs_bnode_unhash(node);
  91                         hfs_bnode_free(node);
  92                 } while (--i && nidx < tree->node_count);
  93                 spin_unlock(&tree->hash_lock);
  94         }
  95         //printk("releasepage: %lu,%x = %d\n", page->index, mask, res);
  96         return res ? try_to_free_buffers(page) : 0;
  97 }
  98
  99 static int hfsplus_get_blocks(struct inode *inode, sector_t iblock, unsigned long max_blocks,
 100                               struct buffer_head *bh_result, int create)
 101 {
 102         int ret;
 103
 104         ret = hfsplus_get_block(inode, iblock, bh_result, create);
 105         if (!ret)
 106                 bh_result->b_size = (1 << inode->i_blkbits);
 107         return ret;
 108 }
 109
 110 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
 111                 const struct iovec *iov, loff_t offset, unsigned long nr_segs)
 112 {
 113         struct file *file = iocb->ki_filp;
 114         struct inode *inode = file->f_dentry->d_inode->i_mapping->host;
 115
 116         return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
 117                                   offset, nr_segs, hfsplus_get_blocks, NULL);
 118 }
 119
 120 static int hfsplus_writepages(struct address_space *mapping,
 121                               struct writeback_control *wbc)
 122 {
 123         return mpage_writepages(mapping, wbc, hfsplus_get_block);
 124 }
 125
 126 struct address_space_operations hfsplus_btree_aops = {
 127         .readpage       = hfsplus_readpage,
 128         .writepage      = hfsplus_writepage,
 129         .sync_page      = block_sync_page,
 130         .prepare_write  = hfsplus_prepare_write,
 131         .commit_write   = generic_commit_write,
 132         .bmap           = hfsplus_bmap,
 133         .releasepage    = hfsplus_releasepage,
 134 };
 135
 136 struct address_space_operations hfsplus_aops = {
 137         .readpage       = hfsplus_readpage,
 138         .writepage      = hfsplus_writepage,
 139         .sync_page      = block_sync_page,
 140         .prepare_write  = hfsplus_prepare_write,
 141         .commit_write   = generic_commit_write,
 142         .bmap           = hfsplus_bmap,
 143         .direct_IO      = hfsplus_direct_IO,
 144         .writepages     = hfsplus_writepages,
 145 };
 146
 147 static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dentry,
 148                                           struct nameidata *nd)
 149 {
 150         struct hfs_find_data fd;
 151         struct super_block *sb = dir->i_sb;
 152         struct inode *inode = NULL;
 153         int err;
 154
 155         if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 156                 goto out;
 157
 158         inode = HFSPLUS_I(dir).rsrc_inode;
 159         if (inode)
 160                 goto out;
 161
 162         inode = new_inode(sb);
 163         if (!inode)
 164                 return ERR_PTR(-ENOMEM);
 165
 166         inode->i_ino = dir->i_ino;
 167         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 168         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 169         HFSPLUS_I(inode).flags = HFSPLUS_FLG_RSRC;
 170
 171         hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);
 172         err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 173         if (!err)
 174                 err = hfsplus_cat_read_inode(inode, &fd);
 175         hfs_find_exit(&fd);
 176         if (err) {
 177                 iput(inode);
 178                 return ERR_PTR(err);
 179         }
 180         HFSPLUS_I(inode).rsrc_inode = dir;
 181         HFSPLUS_I(dir).rsrc_inode = inode;
 182         igrab(dir);
 183         hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb).rsrc_inodes);
 184         mark_inode_dirty(inode);
 185 out:
 186         d_add(dentry, inode);
 187         return NULL;
 188 }
 189
 190 static void hfsplus_get_perms(struct inode *inode, struct hfsplus_perm *perms, int dir)
 191 {
 192         struct super_block *sb = inode->i_sb;
 193         u16 mode;
 194
 195         mode = be16_to_cpu(perms->mode);
 196
 197         inode->i_uid = be32_to_cpu(perms->owner);
 198         if (!inode->i_uid && !mode)
 199                 inode->i_uid = HFSPLUS_SB(sb).uid;
 200
 201         inode->i_gid = be32_to_cpu(perms->group);
 202         if (!inode->i_gid && !mode)
 203                 inode->i_gid = HFSPLUS_SB(sb).gid;
 204
 205         if (dir) {
 206                 mode = mode ? (mode & S_IALLUGO) :
 207                         (S_IRWXUGO & ~(HFSPLUS_SB(sb).umask));
 208                 mode |= S_IFDIR;
 209         } else if (!mode)
 210                 mode = S_IFREG | ((S_IRUGO|S_IWUGO) &
 211                         ~(HFSPLUS_SB(sb).umask));
 212         inode->i_mode = mode;
 213
 214         HFSPLUS_I(inode).rootflags = perms->rootflags;
 215         HFSPLUS_I(inode).userflags = perms->userflags;
 216         if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 217                 inode->i_flags |= S_IMMUTABLE;
 218         else
 219                 inode->i_flags &= ~S_IMMUTABLE;
 220         if (perms->rootflags & HFSPLUS_FLG_APPEND)
 221                 inode->i_flags |= S_APPEND;
 222         else
 223                 inode->i_flags &= ~S_APPEND;
 224 }
 225
 226 static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms)
 227 {
 228         if (inode->i_flags & S_IMMUTABLE)
 229                 perms->rootflags |= HFSPLUS_FLG_IMMUTABLE;
 230         else
 231                 perms->rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
 232         if (inode->i_flags & S_APPEND)
 233                 perms->rootflags |= HFSPLUS_FLG_APPEND;
 234         else
 235                 perms->rootflags &= ~HFSPLUS_FLG_APPEND;
 236         perms->userflags = HFSPLUS_I(inode).userflags;
 237         perms->mode = cpu_to_be16(inode->i_mode);
 238         perms->owner = cpu_to_be32(inode->i_uid);
 239         perms->group = cpu_to_be32(inode->i_gid);
 240         perms->dev = cpu_to_be32(HFSPLUS_I(inode).dev);
 241 }
 242
 243 static int hfsplus_permission(struct inode *inode, int mask, struct nameidata *nd)
 244 {
 245         /* MAY_EXEC is also used for lookup, if no x bit is set allow lookup,
 246          * open_exec has the same test, so it's still not executable, if a x bit
 247          * is set fall back to standard permission check.
 248          */
 249         if (S_ISREG(inode->i_mode) && mask & MAY_EXEC && !(inode->i_mode & 0111))
 250                 return 0;
 251         return generic_permission(inode, mask, NULL);
 252 }
 253
 254
 255 static int hfsplus_file_open(struct inode *inode, struct file *file)
 256 {
 257         if (HFSPLUS_IS_RSRC(inode))
 258                 inode = HFSPLUS_I(inode).rsrc_inode;
 259         if (atomic_read(&file->f_count) != 1)
 260                 return 0;
 261         atomic_inc(&HFSPLUS_I(inode).opencnt);
 262         return 0;
 263 }
 264
 265 static int hfsplus_file_release(struct inode *inode, struct file *file)
 266 {
 267         struct super_block *sb = inode->i_sb;
 268
 269         if (HFSPLUS_IS_RSRC(inode))
 270                 inode = HFSPLUS_I(inode).rsrc_inode;
 271         if (atomic_read(&file->f_count) != 0)
 272                 return 0;
 273         if (atomic_dec_and_test(&HFSPLUS_I(inode).opencnt)) {
 274                 mutex_lock(&inode->i_mutex);
 275                 hfsplus_file_truncate(inode);
 276                 if (inode->i_flags & S_DEAD) {
 277                         hfsplus_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
 278                         hfsplus_delete_inode(inode);
 279                 }
 280                 mutex_unlock(&inode->i_mutex);
 281         }
 282         return 0;
 283 }
 284
 285 extern struct inode_operations hfsplus_dir_inode_operations;
 286 extern struct file_operations hfsplus_dir_operations;
 287
 288 static struct inode_operations hfsplus_file_inode_operations = {
 289         .lookup         = hfsplus_file_lookup,
 290         .truncate       = hfsplus_file_truncate,
 291         .permission     = hfsplus_permission,
 292         .setxattr       = hfsplus_setxattr,
 293         .getxattr       = hfsplus_getxattr,
 294         .listxattr      = hfsplus_listxattr,
 295 };
 296
 297 static struct file_operations hfsplus_file_operations = {
 298         .llseek         = generic_file_llseek,
 299         .read           = generic_file_read,
 300         .write          = generic_file_write,
 301         .mmap           = generic_file_mmap,
 302         .sendfile       = generic_file_sendfile,
 303         .fsync          = file_fsync,
 304         .open           = hfsplus_file_open,
 305         .release        = hfsplus_file_release,
 306         .ioctl          = hfsplus_ioctl,
 307 };
 308
 309 struct inode *hfsplus_new_inode(struct super_block *sb, int mode)
 310 {
 311         struct inode *inode = new_inode(sb);
 312         if (!inode)
 313                 return NULL;
 314
 315         inode->i_ino = HFSPLUS_SB(sb).next_cnid++;
 316         inode->i_mode = mode;
 317         inode->i_uid = current->fsuid;
 318         inode->i_gid = current->fsgid;
 319         inode->i_nlink = 1;
 320         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 321         inode->i_blksize = HFSPLUS_SB(sb).alloc_blksz;
 322         INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list);
 323         init_MUTEX(&HFSPLUS_I(inode).extents_lock);
 324         atomic_set(&HFSPLUS_I(inode).opencnt, 0);
 325         HFSPLUS_I(inode).flags = 0;
 326         memset(HFSPLUS_I(inode).first_extents, 0, sizeof(hfsplus_extent_rec));
 327         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 328         HFSPLUS_I(inode).alloc_blocks = 0;
 329         HFSPLUS_I(inode).first_blocks = 0;
 330         HFSPLUS_I(inode).cached_start = 0;
 331         HFSPLUS_I(inode).cached_blocks = 0;
 332         HFSPLUS_I(inode).phys_size = 0;
 333         HFSPLUS_I(inode).fs_blocks = 0;
 334         HFSPLUS_I(inode).rsrc_inode = NULL;
 335         if (S_ISDIR(inode->i_mode)) {
 336                 inode->i_size = 2;
 337                 HFSPLUS_SB(sb).folder_count++;
 338                 inode->i_op = &hfsplus_dir_inode_operations;
 339                 inode->i_fop = &hfsplus_dir_operations;
 340         } else if (S_ISREG(inode->i_mode)) {
 341                 HFSPLUS_SB(sb).file_count++;
 342                 inode->i_op = &hfsplus_file_inode_operations;
 343                 inode->i_fop = &hfsplus_file_operations;
 344                 inode->i_mapping->a_ops = &hfsplus_aops;
 345                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_SB(sb).data_clump_blocks;
 346         } else if (S_ISLNK(inode->i_mode)) {
 347                 HFSPLUS_SB(sb).file_count++;
 348                 inode->i_op = &page_symlink_inode_operations;
 349                 inode->i_mapping->a_ops = &hfsplus_aops;
 350                 HFSPLUS_I(inode).clump_blocks = 1;
 351         } else
 352                 HFSPLUS_SB(sb).file_count++;
 353         insert_inode_hash(inode);
 354         mark_inode_dirty(inode);
 355         sb->s_dirt = 1;
 356
 357         return inode;
 358 }
 359
 360 void hfsplus_delete_inode(struct inode *inode)
 361 {
 362         struct super_block *sb = inode->i_sb;
 363
 364         if (S_ISDIR(inode->i_mode)) {
 365                 HFSPLUS_SB(sb).folder_count--;
 366                 sb->s_dirt = 1;
 367                 return;
 368         }
 369         HFSPLUS_SB(sb).file_count--;
 370         if (S_ISREG(inode->i_mode)) {
 371                 if (!inode->i_nlink) {
 372                         inode->i_size = 0;
 373                         hfsplus_file_truncate(inode);
 374                 }
 375         } else if (S_ISLNK(inode->i_mode)) {
 376                 inode->i_size = 0;
 377                 hfsplus_file_truncate(inode);
 378         }
 379         sb->s_dirt = 1;
 380 }
 381
 382 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 383 {
 384         struct super_block *sb = inode->i_sb;
 385         u32 count;
 386         int i;
 387
 388         memcpy(&HFSPLUS_I(inode).first_extents, &fork->extents,
 389                sizeof(hfsplus_extent_rec));
 390         for (count = 0, i = 0; i < 8; i++)
 391                 count += be32_to_cpu(fork->extents[i].block_count);
 392         HFSPLUS_I(inode).first_blocks = count;
 393         memset(HFSPLUS_I(inode).cached_extents, 0, sizeof(hfsplus_extent_rec));
 394         HFSPLUS_I(inode).cached_start = 0;
 395         HFSPLUS_I(inode).cached_blocks = 0;
 396
 397         HFSPLUS_I(inode).alloc_blocks = be32_to_cpu(fork->total_blocks);
 398         inode->i_size = HFSPLUS_I(inode).phys_size = be64_to_cpu(fork->total_size);
 399         HFSPLUS_I(inode).fs_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 400         inode_set_bytes(inode, HFSPLUS_I(inode).fs_blocks << sb->s_blocksize_bits);
 401         HFSPLUS_I(inode).clump_blocks = be32_to_cpu(fork->clump_size) >> HFSPLUS_SB(sb).alloc_blksz_shift;
 402         if (!HFSPLUS_I(inode).clump_blocks)
 403                 HFSPLUS_I(inode).clump_blocks = HFSPLUS_IS_RSRC(inode) ? HFSPLUS_SB(sb).rsrc_clump_blocks :
 404                                 HFSPLUS_SB(sb).data_clump_blocks;
 405 }
 406
 407 void hfsplus_inode_write_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 408 {
 409         memcpy(&fork->extents, &HFSPLUS_I(inode).first_extents,
 410                sizeof(hfsplus_extent_rec));
 411         fork->total_size = cpu_to_be64(inode->i_size);
 412         fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode).alloc_blocks);
 413 }
 414
 415 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 416 {
 417         hfsplus_cat_entry entry;
 418         int res = 0;
 419         u16 type;
 420
 421         type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 422
 423         HFSPLUS_I(inode).dev = 0;
 424         inode->i_blksize = HFSPLUS_SB(inode->i_sb).alloc_blksz;
 425         if (type == HFSPLUS_FOLDER) {
 426                 struct hfsplus_cat_folder *folder = &entry.folder;
 427
 428                 if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 429                         /* panic? */;
 430                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 431                                         sizeof(struct hfsplus_cat_folder));
 432                 hfsplus_get_perms(inode, &folder->permissions, 1);
 433                 inode->i_nlink = 1;
 434                 inode->i_size = 2 + be32_to_cpu(folder->valence);
 435                 inode->i_atime = hfsp_mt2ut(folder->access_date);
 436                 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 437                 inode->i_ctime = inode->i_mtime;
 438                 HFSPLUS_I(inode).fs_blocks = 0;
 439                 inode->i_op = &hfsplus_dir_inode_operations;
 440                 inode->i_fop = &hfsplus_dir_operations;
 441         } else if (type == HFSPLUS_FILE) {
 442                 struct hfsplus_cat_file *file = &entry.file;
 443
 444                 if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 445                         /* panic? */;
 446                 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 447                                         sizeof(struct hfsplus_cat_file));
 448
 449                 hfsplus_inode_read_fork(inode, HFSPLUS_IS_DATA(inode) ?
 450                                         &file->data_fork : &file->rsrc_fork);
 451                 hfsplus_get_perms(inode, &file->permissions, 0);
 452                 inode->i_nlink = 1;
 453                 if (S_ISREG(inode->i_mode)) {
 454                         if (file->permissions.dev)
 455                                 inode->i_nlink = be32_to_cpu(file->permissions.dev);
 456                         inode->i_op = &hfsplus_file_inode_operations;
 457                         inode->i_fop = &hfsplus_file_operations;
 458                         inode->i_mapping->a_ops = &hfsplus_aops;
 459                 } else if (S_ISLNK(inode->i_mode)) {
 460                         inode->i_op = &page_symlink_inode_operations;
 461                         inode->i_mapping->a_ops = &hfsplus_aops;
 462                 } else {
 463                         init_special_inode(inode, inode->i_mode,
 464                                            be32_to_cpu(file->permissions.dev));
 465                 }
 466                 inode->i_atime = hfsp_mt2ut(file->access_date);
 467                 inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 468                 inode->i_ctime = inode->i_mtime;
 469         } else {
 470                 printk("HFS+-fs: bad catalog entry used to create inode\n");
 471                 res = -EIO;
 472         }
 473         return res;
 474 }
 475
 476 int hfsplus_cat_write_inode(struct inode *inode)
 477 {
 478         struct inode *main_inode = inode;
 479         struct hfs_find_data fd;
 480         hfsplus_cat_entry entry;
 481
 482         if (HFSPLUS_IS_RSRC(inode))
 483                 main_inode = HFSPLUS_I(inode).rsrc_inode;
 484
 485         if (!main_inode->i_nlink)
 486                 return 0;
 487
 488         if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb).cat_tree, &fd))
 489                 /* panic? */
 490                 return -EIO;
 491
 492         if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 493                 /* panic? */
 494                 goto out;
 495
 496         if (S_ISDIR(main_inode->i_mode)) {
 497                 struct hfsplus_cat_folder *folder = &entry.folder;
 498
 499                 if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
 500                         /* panic? */;
 501                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 502                                         sizeof(struct hfsplus_cat_folder));
 503                 /* simple node checks? */
 504                 hfsplus_set_perms(inode, &folder->permissions);
 505                 folder->access_date = hfsp_ut2mt(inode->i_atime);
 506                 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 507                 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 508                 folder->valence = cpu_to_be32(inode->i_size - 2);
 509                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 510                                          sizeof(struct hfsplus_cat_folder));
 511         } else if (HFSPLUS_IS_RSRC(inode)) {
 512                 struct hfsplus_cat_file *file = &entry.file;
 513                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 514                                sizeof(struct hfsplus_cat_file));
 515                 hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 516                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 517                                 sizeof(struct hfsplus_cat_file));
 518         } else {
 519                 struct hfsplus_cat_file *file = &entry.file;
 520
 521                 if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 522                         /* panic? */;
 523                 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 524                                         sizeof(struct hfsplus_cat_file));
 525                 hfsplus_inode_write_fork(inode, &file->data_fork);
 526                 if (S_ISREG(inode->i_mode))
 527                         HFSPLUS_I(inode).dev = inode->i_nlink;
 528                 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
 529                         HFSPLUS_I(inode).dev = kdev_t_to_nr(inode->i_rdev);
 530                 hfsplus_set_perms(inode, &file->permissions);
 531                 if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)
 532                         file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 533                 else
 534                         file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 535                 file->access_date = hfsp_ut2mt(inode->i_atime);
 536                 file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 537                 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 538                 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 539                                          sizeof(struct hfsplus_cat_file));
 540         }
 541 out:
 542         hfs_find_exit(&fd);
 543         return 0;
 544 }