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/uio.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_SIZE) { 91 nidx = page->index >> 92 (tree->node_size_shift - PAGE_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_SHIFT - tree->node_size_shift); 107 i = 1 << (PAGE_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(struct kiocb *iocb, struct iov_iter *iter) 126 { 127 struct file *file = iocb->ki_filp; 128 struct address_space *mapping = file->f_mapping; 129 struct inode *inode = mapping->host; 130 size_t count = iov_iter_count(iter); 131 ssize_t ret; 132 133 ret = blockdev_direct_IO(iocb, inode, iter, hfsplus_get_block); 134 135 /* 136 * In case of error extending write may have instantiated a few 137 * blocks outside i_size. Trim these off again. 138 */ 139 if (unlikely(iov_iter_rw(iter) == WRITE && ret < 0)) { 140 loff_t isize = i_size_read(inode); 141 loff_t end = iocb->ki_pos + count; 142 143 if (end > isize) 144 hfsplus_write_failed(mapping, end); 145 } 146 147 return ret; 148 } 149 150 static int hfsplus_writepages(struct address_space *mapping, 151 struct writeback_control *wbc) 152 { 153 return mpage_writepages(mapping, wbc, hfsplus_get_block); 154 } 155 156 const struct address_space_operations hfsplus_btree_aops = { 157 .readpage = hfsplus_readpage, 158 .writepage = hfsplus_writepage, 159 .write_begin = hfsplus_write_begin, 160 .write_end = generic_write_end, 161 .bmap = hfsplus_bmap, 162 .releasepage = hfsplus_releasepage, 163 }; 164 165 const struct address_space_operations hfsplus_aops = { 166 .readpage = hfsplus_readpage, 167 .writepage = hfsplus_writepage, 168 .write_begin = hfsplus_write_begin, 169 .write_end = generic_write_end, 170 .bmap = hfsplus_bmap, 171 .direct_IO = hfsplus_direct_IO, 172 .writepages = hfsplus_writepages, 173 }; 174 175 const struct dentry_operations hfsplus_dentry_operations = { 176 .d_hash = hfsplus_hash_dentry, 177 .d_compare = hfsplus_compare_dentry, 178 }; 179 180 static void hfsplus_get_perms(struct inode *inode, 181 struct hfsplus_perm *perms, int dir) 182 { 183 struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); 184 u16 mode; 185 186 mode = be16_to_cpu(perms->mode); 187 188 i_uid_write(inode, be32_to_cpu(perms->owner)); 189 if (!i_uid_read(inode) && !mode) 190 inode->i_uid = sbi->uid; 191 192 i_gid_write(inode, be32_to_cpu(perms->group)); 193 if (!i_gid_read(inode) && !mode) 194 inode->i_gid = sbi->gid; 195 196 if (dir) { 197 mode = mode ? (mode & S_IALLUGO) : (S_IRWXUGO & ~(sbi->umask)); 198 mode |= S_IFDIR; 199 } else if (!mode) 200 mode = S_IFREG | ((S_IRUGO|S_IWUGO) & ~(sbi->umask)); 201 inode->i_mode = mode; 202 203 HFSPLUS_I(inode)->userflags = perms->userflags; 204 if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE) 205 inode->i_flags |= S_IMMUTABLE; 206 else 207 inode->i_flags &= ~S_IMMUTABLE; 208 if (perms->rootflags & HFSPLUS_FLG_APPEND) 209 inode->i_flags |= S_APPEND; 210 else 211 inode->i_flags &= ~S_APPEND; 212 } 213 214 static int hfsplus_file_open(struct inode *inode, struct file *file) 215 { 216 if (HFSPLUS_IS_RSRC(inode)) 217 inode = HFSPLUS_I(inode)->rsrc_inode; 218 if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) 219 return -EOVERFLOW; 220 atomic_inc(&HFSPLUS_I(inode)->opencnt); 221 return 0; 222 } 223 224 static int hfsplus_file_release(struct inode *inode, struct file *file) 225 { 226 struct super_block *sb = inode->i_sb; 227 228 if (HFSPLUS_IS_RSRC(inode)) 229 inode = HFSPLUS_I(inode)->rsrc_inode; 230 if (atomic_dec_and_test(&HFSPLUS_I(inode)->opencnt)) { 231 inode_lock(inode); 232 hfsplus_file_truncate(inode); 233 if (inode->i_flags & S_DEAD) { 234 hfsplus_delete_cat(inode->i_ino, 235 HFSPLUS_SB(sb)->hidden_dir, NULL); 236 hfsplus_delete_inode(inode); 237 } 238 inode_unlock(inode); 239 } 240 return 0; 241 } 242 243 static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr) 244 { 245 struct inode *inode = d_inode(dentry); 246 int error; 247 248 error = inode_change_ok(inode, attr); 249 if (error) 250 return error; 251 252 if ((attr->ia_valid & ATTR_SIZE) && 253 attr->ia_size != i_size_read(inode)) { 254 inode_dio_wait(inode); 255 if (attr->ia_size > inode->i_size) { 256 error = generic_cont_expand_simple(inode, 257 attr->ia_size); 258 if (error) 259 return error; 260 } 261 truncate_setsize(inode, attr->ia_size); 262 hfsplus_file_truncate(inode); 263 } 264 265 setattr_copy(inode, attr); 266 mark_inode_dirty(inode); 267 268 if (attr->ia_valid & ATTR_MODE) { 269 error = posix_acl_chmod(inode, inode->i_mode); 270 if (unlikely(error)) 271 return error; 272 } 273 274 return 0; 275 } 276 277 int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end, 278 int datasync) 279 { 280 struct inode *inode = file->f_mapping->host; 281 struct hfsplus_inode_info *hip = HFSPLUS_I(inode); 282 struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); 283 int error = 0, error2; 284 285 error = filemap_write_and_wait_range(inode->i_mapping, start, end); 286 if (error) 287 return error; 288 inode_lock(inode); 289 290 /* 291 * Sync inode metadata into the catalog and extent trees. 292 */ 293 sync_inode_metadata(inode, 1); 294 295 /* 296 * And explicitly write out the btrees. 297 */ 298 if (test_and_clear_bit(HFSPLUS_I_CAT_DIRTY, &hip->flags)) 299 error = filemap_write_and_wait(sbi->cat_tree->inode->i_mapping); 300 301 if (test_and_clear_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags)) { 302 error2 = 303 filemap_write_and_wait(sbi->ext_tree->inode->i_mapping); 304 if (!error) 305 error = error2; 306 } 307 308 if (test_and_clear_bit(HFSPLUS_I_ATTR_DIRTY, &hip->flags)) { 309 if (sbi->attr_tree) { 310 error2 = 311 filemap_write_and_wait( 312 sbi->attr_tree->inode->i_mapping); 313 if (!error) 314 error = error2; 315 } else { 316 pr_err("sync non-existent attributes tree\n"); 317 } 318 } 319 320 if (test_and_clear_bit(HFSPLUS_I_ALLOC_DIRTY, &hip->flags)) { 321 error2 = filemap_write_and_wait(sbi->alloc_file->i_mapping); 322 if (!error) 323 error = error2; 324 } 325 326 if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags)) 327 blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); 328 329 inode_unlock(inode); 330 331 return error; 332 } 333 334 static const struct inode_operations hfsplus_file_inode_operations = { 335 .setattr = hfsplus_setattr, 336 .setxattr = generic_setxattr, 337 .getxattr = generic_getxattr, 338 .listxattr = hfsplus_listxattr, 339 .removexattr = generic_removexattr, 340 #ifdef CONFIG_HFSPLUS_FS_POSIX_ACL 341 .get_acl = hfsplus_get_posix_acl, 342 .set_acl = hfsplus_set_posix_acl, 343 #endif 344 }; 345 346 static const struct file_operations hfsplus_file_operations = { 347 .llseek = generic_file_llseek, 348 .read_iter = generic_file_read_iter, 349 .write_iter = generic_file_write_iter, 350 .mmap = generic_file_mmap, 351 .splice_read = generic_file_splice_read, 352 .fsync = hfsplus_file_fsync, 353 .open = hfsplus_file_open, 354 .release = hfsplus_file_release, 355 .unlocked_ioctl = hfsplus_ioctl, 356 }; 357 358 struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode) 359 { 360 struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); 361 struct inode *inode = new_inode(sb); 362 struct hfsplus_inode_info *hip; 363 364 if (!inode) 365 return NULL; 366 367 inode->i_ino = sbi->next_cnid++; 368 inode->i_mode = mode; 369 inode->i_uid = current_fsuid(); 370 inode->i_gid = current_fsgid(); 371 set_nlink(inode, 1); 372 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; 373 374 hip = HFSPLUS_I(inode); 375 INIT_LIST_HEAD(&hip->open_dir_list); 376 spin_lock_init(&hip->open_dir_lock); 377 mutex_init(&hip->extents_lock); 378 atomic_set(&hip->opencnt, 0); 379 hip->extent_state = 0; 380 hip->flags = 0; 381 hip->userflags = 0; 382 hip->subfolders = 0; 383 memset(hip->first_extents, 0, sizeof(hfsplus_extent_rec)); 384 memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec)); 385 hip->alloc_blocks = 0; 386 hip->first_blocks = 0; 387 hip->cached_start = 0; 388 hip->cached_blocks = 0; 389 hip->phys_size = 0; 390 hip->fs_blocks = 0; 391 hip->rsrc_inode = NULL; 392 if (S_ISDIR(inode->i_mode)) { 393 inode->i_size = 2; 394 sbi->folder_count++; 395 inode->i_op = &hfsplus_dir_inode_operations; 396 inode->i_fop = &hfsplus_dir_operations; 397 } else if (S_ISREG(inode->i_mode)) { 398 sbi->file_count++; 399 inode->i_op = &hfsplus_file_inode_operations; 400 inode->i_fop = &hfsplus_file_operations; 401 inode->i_mapping->a_ops = &hfsplus_aops; 402 hip->clump_blocks = sbi->data_clump_blocks; 403 } else if (S_ISLNK(inode->i_mode)) { 404 sbi->file_count++; 405 inode->i_op = &page_symlink_inode_operations; 406 inode_nohighmem(inode); 407 inode->i_mapping->a_ops = &hfsplus_aops; 408 hip->clump_blocks = 1; 409 } else 410 sbi->file_count++; 411 insert_inode_hash(inode); 412 mark_inode_dirty(inode); 413 hfsplus_mark_mdb_dirty(sb); 414 415 return inode; 416 } 417 418 void hfsplus_delete_inode(struct inode *inode) 419 { 420 struct super_block *sb = inode->i_sb; 421 422 if (S_ISDIR(inode->i_mode)) { 423 HFSPLUS_SB(sb)->folder_count--; 424 hfsplus_mark_mdb_dirty(sb); 425 return; 426 } 427 HFSPLUS_SB(sb)->file_count--; 428 if (S_ISREG(inode->i_mode)) { 429 if (!inode->i_nlink) { 430 inode->i_size = 0; 431 hfsplus_file_truncate(inode); 432 } 433 } else if (S_ISLNK(inode->i_mode)) { 434 inode->i_size = 0; 435 hfsplus_file_truncate(inode); 436 } 437 hfsplus_mark_mdb_dirty(sb); 438 } 439 440 void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork) 441 { 442 struct super_block *sb = inode->i_sb; 443 struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); 444 struct hfsplus_inode_info *hip = HFSPLUS_I(inode); 445 u32 count; 446 int i; 447 448 memcpy(&hip->first_extents, &fork->extents, sizeof(hfsplus_extent_rec)); 449 for (count = 0, i = 0; i < 8; i++) 450 count += be32_to_cpu(fork->extents[i].block_count); 451 hip->first_blocks = count; 452 memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec)); 453 hip->cached_start = 0; 454 hip->cached_blocks = 0; 455 456 hip->alloc_blocks = be32_to_cpu(fork->total_blocks); 457 hip->phys_size = inode->i_size = be64_to_cpu(fork->total_size); 458 hip->fs_blocks = 459 (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; 460 inode_set_bytes(inode, hip->fs_blocks << sb->s_blocksize_bits); 461 hip->clump_blocks = 462 be32_to_cpu(fork->clump_size) >> sbi->alloc_blksz_shift; 463 if (!hip->clump_blocks) { 464 hip->clump_blocks = HFSPLUS_IS_RSRC(inode) ? 465 sbi->rsrc_clump_blocks : 466 sbi->data_clump_blocks; 467 } 468 } 469 470 void hfsplus_inode_write_fork(struct inode *inode, 471 struct hfsplus_fork_raw *fork) 472 { 473 memcpy(&fork->extents, &HFSPLUS_I(inode)->first_extents, 474 sizeof(hfsplus_extent_rec)); 475 fork->total_size = cpu_to_be64(inode->i_size); 476 fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode)->alloc_blocks); 477 } 478 479 int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd) 480 { 481 hfsplus_cat_entry entry; 482 int res = 0; 483 u16 type; 484 485 type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); 486 487 HFSPLUS_I(inode)->linkid = 0; 488 if (type == HFSPLUS_FOLDER) { 489 struct hfsplus_cat_folder *folder = &entry.folder; 490 491 if (fd->entrylength < sizeof(struct hfsplus_cat_folder)) 492 /* panic? */; 493 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, 494 sizeof(struct hfsplus_cat_folder)); 495 hfsplus_get_perms(inode, &folder->permissions, 1); 496 set_nlink(inode, 1); 497 inode->i_size = 2 + be32_to_cpu(folder->valence); 498 inode->i_atime = hfsp_mt2ut(folder->access_date); 499 inode->i_mtime = hfsp_mt2ut(folder->content_mod_date); 500 inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date); 501 HFSPLUS_I(inode)->create_date = folder->create_date; 502 HFSPLUS_I(inode)->fs_blocks = 0; 503 if (folder->flags & cpu_to_be16(HFSPLUS_HAS_FOLDER_COUNT)) { 504 HFSPLUS_I(inode)->subfolders = 505 be32_to_cpu(folder->subfolders); 506 } 507 inode->i_op = &hfsplus_dir_inode_operations; 508 inode->i_fop = &hfsplus_dir_operations; 509 } else if (type == HFSPLUS_FILE) { 510 struct hfsplus_cat_file *file = &entry.file; 511 512 if (fd->entrylength < sizeof(struct hfsplus_cat_file)) 513 /* panic? */; 514 hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, 515 sizeof(struct hfsplus_cat_file)); 516 517 hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ? 518 &file->rsrc_fork : &file->data_fork); 519 hfsplus_get_perms(inode, &file->permissions, 0); 520 set_nlink(inode, 1); 521 if (S_ISREG(inode->i_mode)) { 522 if (file->permissions.dev) 523 set_nlink(inode, 524 be32_to_cpu(file->permissions.dev)); 525 inode->i_op = &hfsplus_file_inode_operations; 526 inode->i_fop = &hfsplus_file_operations; 527 inode->i_mapping->a_ops = &hfsplus_aops; 528 } else if (S_ISLNK(inode->i_mode)) { 529 inode->i_op = &page_symlink_inode_operations; 530 inode_nohighmem(inode); 531 inode->i_mapping->a_ops = &hfsplus_aops; 532 } else { 533 init_special_inode(inode, inode->i_mode, 534 be32_to_cpu(file->permissions.dev)); 535 } 536 inode->i_atime = hfsp_mt2ut(file->access_date); 537 inode->i_mtime = hfsp_mt2ut(file->content_mod_date); 538 inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date); 539 HFSPLUS_I(inode)->create_date = file->create_date; 540 } else { 541 pr_err("bad catalog entry used to create inode\n"); 542 res = -EIO; 543 } 544 return res; 545 } 546 547 int hfsplus_cat_write_inode(struct inode *inode) 548 { 549 struct inode *main_inode = inode; 550 struct hfs_find_data fd; 551 hfsplus_cat_entry entry; 552 553 if (HFSPLUS_IS_RSRC(inode)) 554 main_inode = HFSPLUS_I(inode)->rsrc_inode; 555 556 if (!main_inode->i_nlink) 557 return 0; 558 559 if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb)->cat_tree, &fd)) 560 /* panic? */ 561 return -EIO; 562 563 if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd)) 564 /* panic? */ 565 goto out; 566 567 if (S_ISDIR(main_inode->i_mode)) { 568 struct hfsplus_cat_folder *folder = &entry.folder; 569 570 if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) 571 /* panic? */; 572 hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, 573 sizeof(struct hfsplus_cat_folder)); 574 /* simple node checks? */ 575 hfsplus_cat_set_perms(inode, &folder->permissions); 576 folder->access_date = hfsp_ut2mt(inode->i_atime); 577 folder->content_mod_date = hfsp_ut2mt(inode->i_mtime); 578 folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime); 579 folder->valence = cpu_to_be32(inode->i_size - 2); 580 if (folder->flags & cpu_to_be16(HFSPLUS_HAS_FOLDER_COUNT)) { 581 folder->subfolders = 582 cpu_to_be32(HFSPLUS_I(inode)->subfolders); 583 } 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