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