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/blkdev.h> 12 #include <linux/mm.h> 13 #include <linux/fs.h> 14 #include <linux/pagemap.h> 15 #include <linux/mpage.h> 16 #include <linux/sched.h> 17 #include <linux/aio.h> 18 19 #include "hfsplus_fs.h" 20 #include "hfsplus_raw.h" 21 #include "xattr.h" 22 #include "acl.h" 23 24 static int hfsplus_readpage(struct file *file, struct page *page) 25 { 26 return block_read_full_page(page, hfsplus_get_block); 27 } 28 29 static int hfsplus_writepage(struct page *page, struct writeback_control *wbc) 30 { 31 return block_write_full_page(page, hfsplus_get_block, wbc); 32 } 33 34 static void hfsplus_write_failed(struct address_space *mapping, loff_t to) 35 { 36 struct inode *inode = mapping->host; 37 38 if (to > inode->i_size) { 39 truncate_pagecache(inode, inode->i_size); 40 hfsplus_file_truncate(inode); 41 } 42 } 43 44 static int hfsplus_write_begin(struct file *file, struct address_space *mapping, 45 loff_t pos, unsigned len, unsigned flags, 46 struct page **pagep, void **fsdata) 47 { 48 int ret; 49 50 *pagep = NULL; 51 ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata, 52 hfsplus_get_block, 53 &HFSPLUS_I(mapping->host)->phys_size); 54 if (unlikely(ret)) 55 hfsplus_write_failed(mapping, pos + len); 56 57 return ret; 58 } 59 60 static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block) 61 { 62 return generic_block_bmap(mapping, block, hfsplus_get_block); 63 } 64 65 static int hfsplus_releasepage(struct page *page, gfp_t mask) 66 { 67 struct inode *inode = page->mapping->host; 68 struct super_block *sb = inode->i_sb; 69 struct hfs_btree *tree; 70 struct hfs_bnode *node; 71 u32 nidx; 72 int i, res = 1; 73 74 switch (inode->i_ino) { 75 case HFSPLUS_EXT_CNID: 76 tree = HFSPLUS_SB(sb)->ext_tree; 77 break; 78 case HFSPLUS_CAT_CNID: 79 tree = HFSPLUS_SB(sb)->cat_tree; 80 break; 81 case HFSPLUS_ATTR_CNID: 82 tree = HFSPLUS_SB(sb)->attr_tree; 83 break; 84 default: 85 BUG(); 86 return 0; 87 } 88 if (!tree) 89 return 0; 90 if (tree->node_size >= PAGE_CACHE_SIZE) { 91 nidx = page->index >> 92 (tree->node_size_shift - PAGE_CACHE_SHIFT); 93 spin_lock(&tree->hash_lock); 94 node = hfs_bnode_findhash(tree, nidx); 95 if (!node) 96 ; 97 else if (atomic_read(&node->refcnt)) 98 res = 0; 99 if (res && node) { 100 hfs_bnode_unhash(node); 101 hfs_bnode_free(node); 102 } 103 spin_unlock(&tree->hash_lock); 104 } else { 105 nidx = page->index << 106 (PAGE_CACHE_SHIFT - tree->node_size_shift); 107 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift); 108 spin_lock(&tree->hash_lock); 109 do { 110 node = hfs_bnode_findhash(tree, nidx++); 111 if (!node) 112 continue; 113 if (atomic_read(&node->refcnt)) { 114 res = 0; 115 break; 116 } 117 hfs_bnode_unhash(node); 118 hfs_bnode_free(node); 119 } while (--i && nidx < tree->node_count); 120 spin_unlock(&tree->hash_lock); 121 } 122 return res ? try_to_free_buffers(page) : 0; 123 } 124 125 static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb, 126 const struct iovec *iov, loff_t offset, unsigned long nr_segs) 127 { 128 struct file *file = iocb->ki_filp; 129 struct address_space *mapping = file->f_mapping; 130 struct inode *inode = file_inode(file)->i_mapping->host; 131 ssize_t ret; 132 133 ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs, 134 hfsplus_get_block); 135 136 /* 137 * In case of error extending write may have instantiated a few 138 * blocks outside i_size. Trim these off again. 139 */ 140 if (unlikely((rw & WRITE) && ret < 0)) { 141 loff_t isize = i_size_read(inode); 142 loff_t end = offset + iov_length(iov, nr_segs); 143 144 if (end > isize) 145 hfsplus_write_failed(mapping, end); 146 } 147 148 return ret; 149 } 150 151 static int hfsplus_writepages(struct address_space *mapping, 152 struct writeback_control *wbc) 153 { 154 return mpage_writepages(mapping, wbc, hfsplus_get_block); 155 } 156 157 const struct address_space_operations hfsplus_btree_aops = { 158 .readpage = hfsplus_readpage, 159 .writepage = hfsplus_writepage, 160 .write_begin = hfsplus_write_begin, 161 .write_end = generic_write_end, 162 .bmap = hfsplus_bmap, 163 .releasepage = hfsplus_releasepage, 164 }; 165 166 const struct address_space_operations hfsplus_aops = { 167 .readpage = hfsplus_readpage, 168 .writepage = hfsplus_writepage, 169 .write_begin = hfsplus_write_begin, 170 .write_end = generic_write_end, 171 .bmap = hfsplus_bmap, 172 .direct_IO = hfsplus_direct_IO, 173 .writepages = hfsplus_writepages, 174 }; 175 176 const struct dentry_operations hfsplus_dentry_operations = { 177 .d_hash = hfsplus_hash_dentry, 178 .d_compare = hfsplus_compare_dentry, 179 }; 180 181 static struct dentry *hfsplus_file_lookup(struct inode *dir, 182 struct dentry *dentry, unsigned int flags) 183 { 184 struct hfs_find_data fd; 185 struct super_block *sb = dir->i_sb; 186 struct inode *inode = NULL; 187 struct hfsplus_inode_info *hip; 188 int err; 189 190 if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc")) 191 goto out; 192 193 inode = HFSPLUS_I(dir)->rsrc_inode; 194 if (inode) 195 goto out; 196 197 inode = new_inode(sb); 198 if (!inode) 199 return ERR_PTR(-ENOMEM); 200 201 hip = HFSPLUS_I(inode); 202 inode->i_ino = dir->i_ino; 203 INIT_LIST_HEAD(&hip->open_dir_list); 204 mutex_init(&hip->extents_lock); 205 hip->extent_state = 0; 206 hip->flags = 0; 207 hip->userflags = 0; 208 set_bit(HFSPLUS_I_RSRC, &hip->flags); 209 210 err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); 211 if (!err) { 212 err = hfsplus_find_cat(sb, dir->i_ino, &fd); 213 if (!err) 214 err = hfsplus_cat_read_inode(inode, &fd); 215 hfs_find_exit(&fd); 216 } 217 if (err) { 218 iput(inode); 219 return ERR_PTR(err); 220 } 221 hip->rsrc_inode = dir; 222 HFSPLUS_I(dir)->rsrc_inode = inode; 223 igrab(dir); 224 225 /* 226 * __mark_inode_dirty expects inodes to be hashed. Since we don't 227 * want resource fork inodes in the regular inode space, we make them 228 * appear hashed, but do not put on any lists. hlist_del() 229 * will work fine and require no locking. 230 */ 231 hlist_add_fake(&inode->i_hash); 232 233 mark_inode_dirty(inode); 234 out: 235 d_add(dentry, inode); 236 return NULL; 237 } 238 239 static void hfsplus_get_perms(struct inode *inode, 240 struct hfsplus_perm *perms, int dir) 241 { 242 struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); 243 u16 mode; 244 245 mode = be16_to_cpu(perms->mode); 246 247 i_uid_write(inode, be32_to_cpu(perms->owner)); 248 if (!i_uid_read(inode) && !mode) 249 inode->i_uid = sbi->uid; 250 251 i_gid_write(inode, be32_to_cpu(perms->group)); 252 if (!i_gid_read(inode) && !mode) 253 inode->i_gid = sbi->gid; 254 255 if (dir) { 256 mode = mode ? (mode & S_IALLUGO) : (S_IRWXUGO & ~(sbi->umask)); 257 mode |= S_IFDIR; 258 } else if (!mode) 259 mode = S_IFREG | ((S_IRUGO|S_IWUGO) & ~(sbi->umask)); 260 inode->i_mode = mode; 261 262 HFSPLUS_I(inode)->userflags = perms->userflags; 263 if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE) 264 inode->i_flags |= S_IMMUTABLE; 265 else 266 inode->i_flags &= ~S_IMMUTABLE; 267 if (perms->rootflags & HFSPLUS_FLG_APPEND) 268 inode->i_flags |= S_APPEND; 269 else 270 inode->i_flags &= ~S_APPEND; 271 } 272 273 static int hfsplus_file_open(struct inode *inode, struct file *file) 274 { 275 if (HFSPLUS_IS_RSRC(inode)) 276 inode = HFSPLUS_I(inode)->rsrc_inode; 277 if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) 278 return -EOVERFLOW; 279 atomic_inc(&HFSPLUS_I(inode)->opencnt); 280 return 0; 281 } 282 283 static int hfsplus_file_release(struct inode *inode, struct file *file) 284 { 285 struct super_block *sb = inode->i_sb; 286 287 if (HFSPLUS_IS_RSRC(inode)) 288 inode = HFSPLUS_I(inode)->rsrc_inode; 289 if (atomic_dec_and_test(&HFSPLUS_I(inode)->opencnt)) { 290 mutex_lock(&inode->i_mutex); 291 hfsplus_file_truncate(inode); 292 if (inode->i_flags & S_DEAD) { 293 hfsplus_delete_cat(inode->i_ino, 294 HFSPLUS_SB(sb)->hidden_dir, NULL); 295 hfsplus_delete_inode(inode); 296 } 297 mutex_unlock(&inode->i_mutex); 298 } 299 return 0; 300 } 301 302 static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr) 303 { 304 struct inode *inode = dentry->d_inode; 305 int error; 306 307 error = inode_change_ok(inode, attr); 308 if (error) 309 return error; 310 311 if ((attr->ia_valid & ATTR_SIZE) && 312 attr->ia_size != i_size_read(inode)) { 313 inode_dio_wait(inode); 314 truncate_setsize(inode, attr->ia_size); 315 hfsplus_file_truncate(inode); 316 } 317 318 setattr_copy(inode, attr); 319 mark_inode_dirty(inode); 320 321 if (attr->ia_valid & ATTR_MODE) { 322 error = hfsplus_posix_acl_chmod(inode); 323 if (unlikely(error)) 324 return error; 325 } 326 327 return 0; 328 } 329 330 int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end, 331 int datasync) 332 { 333 struct inode *inode = file->f_mapping->host; 334 struct hfsplus_inode_info *hip = HFSPLUS_I(inode); 335 struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); 336 int error = 0, error2; 337 338 error = filemap_write_and_wait_range(inode->i_mapping, start, end); 339 if (error) 340 return error; 341 mutex_lock(&inode->i_mutex); 342 343 /* 344 * Sync inode metadata into the catalog and extent trees. 345 */ 346 sync_inode_metadata(inode, 1); 347 348 /* 349 * And explicitly write out the btrees. 350 */ 351 if (test_and_clear_bit(HFSPLUS_I_CAT_DIRTY, &hip->flags)) 352 error = filemap_write_and_wait(sbi->cat_tree->inode->i_mapping); 353 354 if (test_and_clear_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags)) { 355 error2 = 356 filemap_write_and_wait(sbi->ext_tree->inode->i_mapping); 357 if (!error) 358 error = error2; 359 } 360 361 if (test_and_clear_bit(HFSPLUS_I_ATTR_DIRTY, &hip->flags)) { 362 if (sbi->attr_tree) { 363 error2 = 364 filemap_write_and_wait( 365 sbi->attr_tree->inode->i_mapping); 366 if (!error) 367 error = error2; 368 } else { 369 pr_err("sync non-existent attributes tree\n"); 370 } 371 } 372 373 if (test_and_clear_bit(HFSPLUS_I_ALLOC_DIRTY, &hip->flags)) { 374 error2 = filemap_write_and_wait(sbi->alloc_file->i_mapping); 375 if (!error) 376 error = error2; 377 } 378 379 if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags)) 380 blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); 381 382 mutex_unlock(&inode->i_mutex); 383 384 return error; 385 } 386 387 static const struct inode_operations hfsplus_file_inode_operations = { 388 .lookup = hfsplus_file_lookup, 389 .setattr = hfsplus_setattr, 390 .setxattr = generic_setxattr, 391 .getxattr = generic_getxattr, 392 .listxattr = hfsplus_listxattr, 393 .removexattr = hfsplus_removexattr, 394 #ifdef CONFIG_HFSPLUS_FS_POSIX_ACL 395 .get_acl = hfsplus_get_posix_acl, 396 #endif 397 }; 398 399 static const struct file_operations hfsplus_file_operations = { 400 .llseek = generic_file_llseek, 401 .read = do_sync_read, 402 .aio_read = generic_file_aio_read, 403 .write = do_sync_write, 404 .aio_write = generic_file_aio_write, 405 .mmap = generic_file_mmap, 406 .splice_read = generic_file_splice_read, 407 .fsync = hfsplus_file_fsync, 408 .open = hfsplus_file_open, 409 .release = hfsplus_file_release, 410 .unlocked_ioctl = hfsplus_ioctl, 411 }; 412 413 struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode) 414 { 415 struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); 416 struct inode *inode = new_inode(sb); 417 struct hfsplus_inode_info *hip; 418 419 if (!inode) 420 return NULL; 421 422 inode->i_ino = sbi->next_cnid++; 423 inode->i_mode = mode; 424 inode->i_uid = current_fsuid(); 425 inode->i_gid = current_fsgid(); 426 set_nlink(inode, 1); 427 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; 428 429 hip = HFSPLUS_I(inode); 430 INIT_LIST_HEAD(&hip->open_dir_list); 431 mutex_init(&hip->extents_lock); 432 atomic_set(&hip->opencnt, 0); 433 hip->extent_state = 0; 434 hip->flags = 0; 435 hip->userflags = 0; 436 memset(hip->first_extents, 0, sizeof(hfsplus_extent_rec)); 437 memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec)); 438 hip->alloc_blocks = 0; 439 hip->first_blocks = 0; 440 hip->cached_start = 0; 441 hip->cached_blocks = 0; 442 hip->phys_size = 0; 443 hip->fs_blocks = 0; 444 hip->rsrc_inode = NULL; 445 if (S_ISDIR(inode->i_mode)) { 446 inode->i_size = 2; 447 sbi->folder_count++; 448 inode->i_op = &hfsplus_dir_inode_operations; 449 inode->i_fop = &hfsplus_dir_operations; 450 } else if (S_ISREG(inode->i_mode)) { 451 sbi->file_count++; 452 inode->i_op = &hfsplus_file_inode_operations; 453 inode->i_fop = &hfsplus_file_operations; 454 inode->i_mapping->a_ops = &hfsplus_aops; 455 hip->clump_blocks = sbi->data_clump_blocks; 456 } else if (S_ISLNK(inode->i_mode)) { 457 sbi->file_count++; 458 inode->i_op = &page_symlink_inode_operations; 459 inode->i_mapping->a_ops = &hfsplus_aops; 460 hip->clump_blocks = 1; 461 } else 462 sbi->file_count++; 463 insert_inode_hash(inode); 464 mark_inode_dirty(inode); 465 hfsplus_mark_mdb_dirty(sb); 466 467 return inode; 468 } 469 470 void hfsplus_delete_inode(struct inode *inode) 471 { 472 struct super_block *sb = inode->i_sb; 473 474 if (S_ISDIR(inode->i_mode)) { 475 HFSPLUS_SB(sb)->folder_count--; 476 hfsplus_mark_mdb_dirty(sb); 477 return; 478 } 479 HFSPLUS_SB(sb)->file_count--; 480 if (S_ISREG(inode->i_mode)) { 481 if (!inode->i_nlink) { 482 inode->i_size = 0; 483 hfsplus_file_truncate(inode); 484 } 485 } else if (S_ISLNK(inode->i_mode)) { 486 inode->i_size = 0; 487 hfsplus_file_truncate(inode); 488 } 489 hfsplus_mark_mdb_dirty(sb); 490 } 491 492 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork) 493 { 494 struct super_block *sb = inode->i_sb; 495 struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); 496 struct hfsplus_inode_info *hip = HFSPLUS_I(inode); 497 u32 count; 498 int i; 499 500 memcpy(&hip->first_extents, &fork->extents, sizeof(hfsplus_extent_rec)); 501 for (count = 0, i = 0; i < 8; i++) 502 count += be32_to_cpu(fork->extents[i].block_count); 503 hip->first_blocks = count; 504 memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec)); 505 hip->cached_start = 0; 506 hip->cached_blocks = 0; 507 508 hip->alloc_blocks = be32_to_cpu(fork->total_blocks); 509 hip->phys_size = inode->i_size = be64_to_cpu(fork->total_size); 510 hip->fs_blocks = 511 (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; 512 inode_set_bytes(inode, hip->fs_blocks << sb->s_blocksize_bits); 513 hip->clump_blocks = 514 be32_to_cpu(fork->clump_size) >> sbi->alloc_blksz_shift; 515 if (!hip->clump_blocks) { 516 hip->clump_blocks = HFSPLUS_IS_RSRC(inode) ? 517 sbi->rsrc_clump_blocks : 518 sbi->data_clump_blocks; 519 } 520 } 521 522 void hfsplus_inode_write_fork(struct inode *inode, 523 struct hfsplus_fork_raw *fork) 524 { 525 memcpy(&fork->extents, &HFSPLUS_I(inode)->first_extents, 526 sizeof(hfsplus_extent_rec)); 527 fork->total_size = cpu_to_be64(inode->i_size); 528 fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode)->alloc_blocks); 529 } 530 531 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd) 532 { 533 hfsplus_cat_entry entry; 534 int res = 0; 535 u16 type; 536 537 type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); 538 539 HFSPLUS_I(inode)->linkid = 0; 540 if (type == HFSPLUS_FOLDER) { 541 struct hfsplus_cat_folder *folder = &entry.folder; 542 543 if (fd->entrylength < sizeof(struct hfsplus_cat_folder)) 544 /* panic? */; 545 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, 546 sizeof(struct hfsplus_cat_folder)); 547 hfsplus_get_perms(inode, &folder->permissions, 1); 548 set_nlink(inode, 1); 549 inode->i_size = 2 + be32_to_cpu(folder->valence); 550 inode->i_atime = hfsp_mt2ut(folder->access_date); 551 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date); 552 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date); 553 HFSPLUS_I(inode)->create_date = folder->create_date; 554 HFSPLUS_I(inode)->fs_blocks = 0; 555 inode->i_op = &hfsplus_dir_inode_operations; 556 inode->i_fop = &hfsplus_dir_operations; 557 } else if (type == HFSPLUS_FILE) { 558 struct hfsplus_cat_file *file = &entry.file; 559 560 if (fd->entrylength < sizeof(struct hfsplus_cat_file)) 561 /* panic? */; 562 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, 563 sizeof(struct hfsplus_cat_file)); 564 565 hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ? 566 &file->rsrc_fork : &file->data_fork); 567 hfsplus_get_perms(inode, &file->permissions, 0); 568 set_nlink(inode, 1); 569 if (S_ISREG(inode->i_mode)) { 570 if (file->permissions.dev) 571 set_nlink(inode, 572 be32_to_cpu(file->permissions.dev)); 573 inode->i_op = &hfsplus_file_inode_operations; 574 inode->i_fop = &hfsplus_file_operations; 575 inode->i_mapping->a_ops = &hfsplus_aops; 576 } else if (S_ISLNK(inode->i_mode)) { 577 inode->i_op = &page_symlink_inode_operations; 578 inode->i_mapping->a_ops = &hfsplus_aops; 579 } else { 580 init_special_inode(inode, inode->i_mode, 581 be32_to_cpu(file->permissions.dev)); 582 } 583 inode->i_atime = hfsp_mt2ut(file->access_date); 584 inode->i_mtime = hfsp_mt2ut(file->content_mod_date); 585 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date); 586 HFSPLUS_I(inode)->create_date = file->create_date; 587 } else { 588 pr_err("bad catalog entry used to create inode\n"); 589 res = -EIO; 590 } 591 return res; 592 } 593 594 int hfsplus_cat_write_inode(struct inode *inode) 595 { 596 struct inode *main_inode = inode; 597 struct hfs_find_data fd; 598 hfsplus_cat_entry entry; 599 600 if (HFSPLUS_IS_RSRC(inode)) 601 main_inode = HFSPLUS_I(inode)->rsrc_inode; 602 603 if (!main_inode->i_nlink) 604 return 0; 605 606 if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb)->cat_tree, &fd)) 607 /* panic? */ 608 return -EIO; 609 610 if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd)) 611 /* panic? */ 612 goto out; 613 614 if (S_ISDIR(main_inode->i_mode)) { 615 struct hfsplus_cat_folder *folder = &entry.folder; 616 617 if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) 618 /* panic? */; 619 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, 620 sizeof(struct hfsplus_cat_folder)); 621 /* simple node checks? */ 622 hfsplus_cat_set_perms(inode, &folder->permissions); 623 folder->access_date = hfsp_ut2mt(inode->i_atime); 624 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime); 625 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime); 626 folder->valence = cpu_to_be32(inode->i_size - 2); 627 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset, 628 sizeof(struct hfsplus_cat_folder)); 629 } else if (HFSPLUS_IS_RSRC(inode)) { 630 struct hfsplus_cat_file *file = &entry.file; 631 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, 632 sizeof(struct hfsplus_cat_file)); 633 hfsplus_inode_write_fork(inode, &file->rsrc_fork); 634 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset, 635 sizeof(struct hfsplus_cat_file)); 636 } else { 637 struct hfsplus_cat_file *file = &entry.file; 638 639 if (fd.entrylength < sizeof(struct hfsplus_cat_file)) 640 /* panic? */; 641 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, 642 sizeof(struct hfsplus_cat_file)); 643 hfsplus_inode_write_fork(inode, &file->data_fork); 644 hfsplus_cat_set_perms(inode, &file->permissions); 645 if (HFSPLUS_FLG_IMMUTABLE & 646 (file->permissions.rootflags | 647 file->permissions.userflags)) 648 file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED); 649 else 650 file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED); 651 file->access_date = hfsp_ut2mt(inode->i_atime); 652 file->content_mod_date = hfsp_ut2mt(inode->i_mtime); 653 file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime); 654 hfs_bnode_write(fd.bnode, &entry, fd.entryoffset, 655 sizeof(struct hfsplus_cat_file)); 656 } 657 658 set_bit(HFSPLUS_I_CAT_DIRTY, &HFSPLUS_I(inode)->flags); 659 out: 660 hfs_find_exit(&fd); 661 return 0; 662 } 663