1 /* 2 * linux/fs/hfs/inode.c 3 * 4 * Copyright (C) 1995-1997 Paul H. Hargrove 5 * (C) 2003 Ardis Technologies <roman@ardistech.com> 6 * This file may be distributed under the terms of the GNU General Public License. 7 * 8 * This file contains inode-related functions which do not depend on 9 * which scheme is being used to represent forks. 10 * 11 * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds 12 */ 13 14 #include <linux/pagemap.h> 15 #include <linux/version.h> 16 #include <linux/mpage.h> 17 18 #include "hfs_fs.h" 19 #include "btree.h" 20 21 static struct file_operations hfs_file_operations; 22 static struct inode_operations hfs_file_inode_operations; 23 24 /*================ Variable-like macros ================*/ 25 26 #define HFS_VALID_MODE_BITS (S_IFREG | S_IFDIR | S_IRWXUGO) 27 28 static int hfs_writepage(struct page *page, struct writeback_control *wbc) 29 { 30 return block_write_full_page(page, hfs_get_block, wbc); 31 } 32 33 static int hfs_readpage(struct file *file, struct page *page) 34 { 35 return block_read_full_page(page, hfs_get_block); 36 } 37 38 static int hfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to) 39 { 40 return cont_prepare_write(page, from, to, hfs_get_block, 41 &HFS_I(page->mapping->host)->phys_size); 42 } 43 44 static sector_t hfs_bmap(struct address_space *mapping, sector_t block) 45 { 46 return generic_block_bmap(mapping, block, hfs_get_block); 47 } 48 49 static int hfs_releasepage(struct page *page, gfp_t mask) 50 { 51 struct inode *inode = page->mapping->host; 52 struct super_block *sb = inode->i_sb; 53 struct hfs_btree *tree; 54 struct hfs_bnode *node; 55 u32 nidx; 56 int i, res = 1; 57 58 switch (inode->i_ino) { 59 case HFS_EXT_CNID: 60 tree = HFS_SB(sb)->ext_tree; 61 break; 62 case HFS_CAT_CNID: 63 tree = HFS_SB(sb)->cat_tree; 64 break; 65 default: 66 BUG(); 67 return 0; 68 } 69 if (tree->node_size >= PAGE_CACHE_SIZE) { 70 nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT); 71 spin_lock(&tree->hash_lock); 72 node = hfs_bnode_findhash(tree, nidx); 73 if (!node) 74 ; 75 else if (atomic_read(&node->refcnt)) 76 res = 0; 77 if (res && node) { 78 hfs_bnode_unhash(node); 79 hfs_bnode_free(node); 80 } 81 spin_unlock(&tree->hash_lock); 82 } else { 83 nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift); 84 i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift); 85 spin_lock(&tree->hash_lock); 86 do { 87 node = hfs_bnode_findhash(tree, nidx++); 88 if (!node) 89 continue; 90 if (atomic_read(&node->refcnt)) { 91 res = 0; 92 break; 93 } 94 hfs_bnode_unhash(node); 95 hfs_bnode_free(node); 96 } while (--i && nidx < tree->node_count); 97 spin_unlock(&tree->hash_lock); 98 } 99 //printk("releasepage: %lu,%x = %d\n", page->index, mask, res); 100 return res ? try_to_free_buffers(page) : 0; 101 } 102 103 static int hfs_get_blocks(struct inode *inode, sector_t iblock, unsigned long max_blocks, 104 struct buffer_head *bh_result, int create) 105 { 106 int ret; 107 108 ret = hfs_get_block(inode, iblock, bh_result, create); 109 if (!ret) 110 bh_result->b_size = (1 << inode->i_blkbits); 111 return ret; 112 } 113 114 static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb, 115 const struct iovec *iov, loff_t offset, unsigned long nr_segs) 116 { 117 struct file *file = iocb->ki_filp; 118 struct inode *inode = file->f_dentry->d_inode->i_mapping->host; 119 120 return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, 121 offset, nr_segs, hfs_get_blocks, NULL); 122 } 123 124 static int hfs_writepages(struct address_space *mapping, 125 struct writeback_control *wbc) 126 { 127 return mpage_writepages(mapping, wbc, hfs_get_block); 128 } 129 130 struct address_space_operations hfs_btree_aops = { 131 .readpage = hfs_readpage, 132 .writepage = hfs_writepage, 133 .sync_page = block_sync_page, 134 .prepare_write = hfs_prepare_write, 135 .commit_write = generic_commit_write, 136 .bmap = hfs_bmap, 137 .releasepage = hfs_releasepage, 138 }; 139 140 struct address_space_operations hfs_aops = { 141 .readpage = hfs_readpage, 142 .writepage = hfs_writepage, 143 .sync_page = block_sync_page, 144 .prepare_write = hfs_prepare_write, 145 .commit_write = generic_commit_write, 146 .bmap = hfs_bmap, 147 .direct_IO = hfs_direct_IO, 148 .writepages = hfs_writepages, 149 }; 150 151 /* 152 * hfs_new_inode 153 */ 154 struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode) 155 { 156 struct super_block *sb = dir->i_sb; 157 struct inode *inode = new_inode(sb); 158 if (!inode) 159 return NULL; 160 161 init_MUTEX(&HFS_I(inode)->extents_lock); 162 INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list); 163 hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name); 164 inode->i_ino = HFS_SB(sb)->next_id++; 165 inode->i_mode = mode; 166 inode->i_uid = current->fsuid; 167 inode->i_gid = current->fsgid; 168 inode->i_nlink = 1; 169 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; 170 inode->i_blksize = HFS_SB(sb)->alloc_blksz; 171 HFS_I(inode)->flags = 0; 172 HFS_I(inode)->rsrc_inode = NULL; 173 HFS_I(inode)->fs_blocks = 0; 174 if (S_ISDIR(mode)) { 175 inode->i_size = 2; 176 HFS_SB(sb)->folder_count++; 177 if (dir->i_ino == HFS_ROOT_CNID) 178 HFS_SB(sb)->root_dirs++; 179 inode->i_op = &hfs_dir_inode_operations; 180 inode->i_fop = &hfs_dir_operations; 181 inode->i_mode |= S_IRWXUGO; 182 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask; 183 } else if (S_ISREG(mode)) { 184 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks; 185 HFS_SB(sb)->file_count++; 186 if (dir->i_ino == HFS_ROOT_CNID) 187 HFS_SB(sb)->root_files++; 188 inode->i_op = &hfs_file_inode_operations; 189 inode->i_fop = &hfs_file_operations; 190 inode->i_mapping->a_ops = &hfs_aops; 191 inode->i_mode |= S_IRUGO|S_IXUGO; 192 if (mode & S_IWUSR) 193 inode->i_mode |= S_IWUGO; 194 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask; 195 HFS_I(inode)->phys_size = 0; 196 HFS_I(inode)->alloc_blocks = 0; 197 HFS_I(inode)->first_blocks = 0; 198 HFS_I(inode)->cached_start = 0; 199 HFS_I(inode)->cached_blocks = 0; 200 memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec)); 201 memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec)); 202 } 203 insert_inode_hash(inode); 204 mark_inode_dirty(inode); 205 set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags); 206 sb->s_dirt = 1; 207 208 return inode; 209 } 210 211 void hfs_delete_inode(struct inode *inode) 212 { 213 struct super_block *sb = inode->i_sb; 214 215 dprint(DBG_INODE, "delete_inode: %lu\n", inode->i_ino); 216 if (S_ISDIR(inode->i_mode)) { 217 HFS_SB(sb)->folder_count--; 218 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID)) 219 HFS_SB(sb)->root_dirs--; 220 set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags); 221 sb->s_dirt = 1; 222 return; 223 } 224 HFS_SB(sb)->file_count--; 225 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID)) 226 HFS_SB(sb)->root_files--; 227 if (S_ISREG(inode->i_mode)) { 228 if (!inode->i_nlink) { 229 inode->i_size = 0; 230 hfs_file_truncate(inode); 231 } 232 } 233 set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags); 234 sb->s_dirt = 1; 235 } 236 237 void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext, 238 __be32 __log_size, __be32 phys_size, u32 clump_size) 239 { 240 struct super_block *sb = inode->i_sb; 241 u32 log_size = be32_to_cpu(__log_size); 242 u16 count; 243 int i; 244 245 memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec)); 246 for (count = 0, i = 0; i < 3; i++) 247 count += be16_to_cpu(ext[i].count); 248 HFS_I(inode)->first_blocks = count; 249 250 inode->i_size = HFS_I(inode)->phys_size = log_size; 251 HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; 252 inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits); 253 HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) / 254 HFS_SB(sb)->alloc_blksz; 255 HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz; 256 if (!HFS_I(inode)->clump_blocks) 257 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks; 258 } 259 260 struct hfs_iget_data { 261 struct hfs_cat_key *key; 262 hfs_cat_rec *rec; 263 }; 264 265 static int hfs_test_inode(struct inode *inode, void *data) 266 { 267 struct hfs_iget_data *idata = data; 268 hfs_cat_rec *rec; 269 270 rec = idata->rec; 271 switch (rec->type) { 272 case HFS_CDR_DIR: 273 return inode->i_ino == be32_to_cpu(rec->dir.DirID); 274 case HFS_CDR_FIL: 275 return inode->i_ino == be32_to_cpu(rec->file.FlNum); 276 default: 277 BUG(); 278 return 1; 279 } 280 } 281 282 /* 283 * hfs_read_inode 284 */ 285 static int hfs_read_inode(struct inode *inode, void *data) 286 { 287 struct hfs_iget_data *idata = data; 288 struct hfs_sb_info *hsb = HFS_SB(inode->i_sb); 289 hfs_cat_rec *rec; 290 291 HFS_I(inode)->flags = 0; 292 HFS_I(inode)->rsrc_inode = NULL; 293 init_MUTEX(&HFS_I(inode)->extents_lock); 294 INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list); 295 296 /* Initialize the inode */ 297 inode->i_uid = hsb->s_uid; 298 inode->i_gid = hsb->s_gid; 299 inode->i_nlink = 1; 300 inode->i_blksize = HFS_SB(inode->i_sb)->alloc_blksz; 301 302 if (idata->key) 303 HFS_I(inode)->cat_key = *idata->key; 304 else 305 HFS_I(inode)->flags |= HFS_FLG_RSRC; 306 HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60; 307 308 rec = idata->rec; 309 switch (rec->type) { 310 case HFS_CDR_FIL: 311 if (!HFS_IS_RSRC(inode)) { 312 hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen, 313 rec->file.PyLen, be16_to_cpu(rec->file.ClpSize)); 314 } else { 315 hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen, 316 rec->file.RPyLen, be16_to_cpu(rec->file.ClpSize)); 317 } 318 319 inode->i_ino = be32_to_cpu(rec->file.FlNum); 320 inode->i_mode = S_IRUGO | S_IXUGO; 321 if (!(rec->file.Flags & HFS_FIL_LOCK)) 322 inode->i_mode |= S_IWUGO; 323 inode->i_mode &= ~hsb->s_file_umask; 324 inode->i_mode |= S_IFREG; 325 inode->i_ctime = inode->i_atime = inode->i_mtime = 326 hfs_m_to_utime(rec->file.MdDat); 327 inode->i_op = &hfs_file_inode_operations; 328 inode->i_fop = &hfs_file_operations; 329 inode->i_mapping->a_ops = &hfs_aops; 330 break; 331 case HFS_CDR_DIR: 332 inode->i_ino = be32_to_cpu(rec->dir.DirID); 333 inode->i_size = be16_to_cpu(rec->dir.Val) + 2; 334 HFS_I(inode)->fs_blocks = 0; 335 inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask); 336 inode->i_ctime = inode->i_atime = inode->i_mtime = 337 hfs_m_to_utime(rec->dir.MdDat); 338 inode->i_op = &hfs_dir_inode_operations; 339 inode->i_fop = &hfs_dir_operations; 340 break; 341 default: 342 make_bad_inode(inode); 343 } 344 return 0; 345 } 346 347 /* 348 * __hfs_iget() 349 * 350 * Given the MDB for a HFS filesystem, a 'key' and an 'entry' in 351 * the catalog B-tree and the 'type' of the desired file return the 352 * inode for that file/directory or NULL. Note that 'type' indicates 353 * whether we want the actual file or directory, or the corresponding 354 * metadata (AppleDouble header file or CAP metadata file). 355 */ 356 struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec) 357 { 358 struct hfs_iget_data data = { key, rec }; 359 struct inode *inode; 360 u32 cnid; 361 362 switch (rec->type) { 363 case HFS_CDR_DIR: 364 cnid = be32_to_cpu(rec->dir.DirID); 365 break; 366 case HFS_CDR_FIL: 367 cnid = be32_to_cpu(rec->file.FlNum); 368 break; 369 default: 370 return NULL; 371 } 372 inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data); 373 if (inode && (inode->i_state & I_NEW)) 374 unlock_new_inode(inode); 375 return inode; 376 } 377 378 void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext, 379 __be32 *log_size, __be32 *phys_size) 380 { 381 memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec)); 382 383 if (log_size) 384 *log_size = cpu_to_be32(inode->i_size); 385 if (phys_size) 386 *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks * 387 HFS_SB(inode->i_sb)->alloc_blksz); 388 } 389 390 int hfs_write_inode(struct inode *inode, int unused) 391 { 392 struct inode *main_inode = inode; 393 struct hfs_find_data fd; 394 hfs_cat_rec rec; 395 396 dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino); 397 hfs_ext_write_extent(inode); 398 399 if (inode->i_ino < HFS_FIRSTUSER_CNID) { 400 switch (inode->i_ino) { 401 case HFS_ROOT_CNID: 402 break; 403 case HFS_EXT_CNID: 404 hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree); 405 return 0; 406 case HFS_CAT_CNID: 407 hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree); 408 return 0; 409 default: 410 BUG(); 411 return -EIO; 412 } 413 } 414 415 if (HFS_IS_RSRC(inode)) 416 main_inode = HFS_I(inode)->rsrc_inode; 417 418 if (!main_inode->i_nlink) 419 return 0; 420 421 if (hfs_find_init(HFS_SB(main_inode->i_sb)->cat_tree, &fd)) 422 /* panic? */ 423 return -EIO; 424 425 fd.search_key->cat = HFS_I(main_inode)->cat_key; 426 if (hfs_brec_find(&fd)) 427 /* panic? */ 428 goto out; 429 430 if (S_ISDIR(main_inode->i_mode)) { 431 if (fd.entrylength < sizeof(struct hfs_cat_dir)) 432 /* panic? */; 433 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, 434 sizeof(struct hfs_cat_dir)); 435 if (rec.type != HFS_CDR_DIR || 436 be32_to_cpu(rec.dir.DirID) != inode->i_ino) { 437 } 438 439 rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime); 440 rec.dir.Val = cpu_to_be16(inode->i_size - 2); 441 442 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset, 443 sizeof(struct hfs_cat_dir)); 444 } else if (HFS_IS_RSRC(inode)) { 445 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, 446 sizeof(struct hfs_cat_file)); 447 hfs_inode_write_fork(inode, rec.file.RExtRec, 448 &rec.file.RLgLen, &rec.file.RPyLen); 449 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset, 450 sizeof(struct hfs_cat_file)); 451 } else { 452 if (fd.entrylength < sizeof(struct hfs_cat_file)) 453 /* panic? */; 454 hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, 455 sizeof(struct hfs_cat_file)); 456 if (rec.type != HFS_CDR_FIL || 457 be32_to_cpu(rec.file.FlNum) != inode->i_ino) { 458 } 459 460 if (inode->i_mode & S_IWUSR) 461 rec.file.Flags &= ~HFS_FIL_LOCK; 462 else 463 rec.file.Flags |= HFS_FIL_LOCK; 464 hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen); 465 rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime); 466 467 hfs_bnode_write(fd.bnode, &rec, fd.entryoffset, 468 sizeof(struct hfs_cat_file)); 469 } 470 out: 471 hfs_find_exit(&fd); 472 return 0; 473 } 474 475 static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry, 476 struct nameidata *nd) 477 { 478 struct inode *inode = NULL; 479 hfs_cat_rec rec; 480 struct hfs_find_data fd; 481 int res; 482 483 if (HFS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc")) 484 goto out; 485 486 inode = HFS_I(dir)->rsrc_inode; 487 if (inode) 488 goto out; 489 490 inode = new_inode(dir->i_sb); 491 if (!inode) 492 return ERR_PTR(-ENOMEM); 493 494 hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd); 495 fd.search_key->cat = HFS_I(dir)->cat_key; 496 res = hfs_brec_read(&fd, &rec, sizeof(rec)); 497 if (!res) { 498 struct hfs_iget_data idata = { NULL, &rec }; 499 hfs_read_inode(inode, &idata); 500 } 501 hfs_find_exit(&fd); 502 if (res) { 503 iput(inode); 504 return ERR_PTR(res); 505 } 506 HFS_I(inode)->rsrc_inode = dir; 507 HFS_I(dir)->rsrc_inode = inode; 508 igrab(dir); 509 hlist_add_head(&inode->i_hash, &HFS_SB(dir->i_sb)->rsrc_inodes); 510 mark_inode_dirty(inode); 511 out: 512 d_add(dentry, inode); 513 return NULL; 514 } 515 516 void hfs_clear_inode(struct inode *inode) 517 { 518 if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) { 519 HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL; 520 iput(HFS_I(inode)->rsrc_inode); 521 } 522 } 523 524 static int hfs_permission(struct inode *inode, int mask, 525 struct nameidata *nd) 526 { 527 if (S_ISREG(inode->i_mode) && mask & MAY_EXEC) 528 return 0; 529 return generic_permission(inode, mask, NULL); 530 } 531 532 static int hfs_file_open(struct inode *inode, struct file *file) 533 { 534 if (HFS_IS_RSRC(inode)) 535 inode = HFS_I(inode)->rsrc_inode; 536 if (atomic_read(&file->f_count) != 1) 537 return 0; 538 atomic_inc(&HFS_I(inode)->opencnt); 539 return 0; 540 } 541 542 static int hfs_file_release(struct inode *inode, struct file *file) 543 { 544 //struct super_block *sb = inode->i_sb; 545 546 if (HFS_IS_RSRC(inode)) 547 inode = HFS_I(inode)->rsrc_inode; 548 if (atomic_read(&file->f_count) != 0) 549 return 0; 550 if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) { 551 down(&inode->i_sem); 552 hfs_file_truncate(inode); 553 //if (inode->i_flags & S_DEAD) { 554 // hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL); 555 // hfs_delete_inode(inode); 556 //} 557 up(&inode->i_sem); 558 } 559 return 0; 560 } 561 562 /* 563 * hfs_notify_change() 564 * 565 * Based very closely on fs/msdos/inode.c by Werner Almesberger 566 * 567 * This is the notify_change() field in the super_operations structure 568 * for HFS file systems. The purpose is to take that changes made to 569 * an inode and apply then in a filesystem-dependent manner. In this 570 * case the process has a few of tasks to do: 571 * 1) prevent changes to the i_uid and i_gid fields. 572 * 2) map file permissions to the closest allowable permissions 573 * 3) Since multiple Linux files can share the same on-disk inode under 574 * HFS (for instance the data and resource forks of a file) a change 575 * to permissions must be applied to all other in-core inodes which 576 * correspond to the same HFS file. 577 */ 578 579 int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr) 580 { 581 struct inode *inode = dentry->d_inode; 582 struct hfs_sb_info *hsb = HFS_SB(inode->i_sb); 583 int error; 584 585 error = inode_change_ok(inode, attr); /* basic permission checks */ 586 if (error) 587 return error; 588 589 /* no uig/gid changes and limit which mode bits can be set */ 590 if (((attr->ia_valid & ATTR_UID) && 591 (attr->ia_uid != hsb->s_uid)) || 592 ((attr->ia_valid & ATTR_GID) && 593 (attr->ia_gid != hsb->s_gid)) || 594 ((attr->ia_valid & ATTR_MODE) && 595 ((S_ISDIR(inode->i_mode) && 596 (attr->ia_mode != inode->i_mode)) || 597 (attr->ia_mode & ~HFS_VALID_MODE_BITS)))) { 598 return hsb->s_quiet ? 0 : error; 599 } 600 601 if (attr->ia_valid & ATTR_MODE) { 602 /* Only the 'w' bits can ever change and only all together. */ 603 if (attr->ia_mode & S_IWUSR) 604 attr->ia_mode = inode->i_mode | S_IWUGO; 605 else 606 attr->ia_mode = inode->i_mode & ~S_IWUGO; 607 attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask; 608 } 609 error = inode_setattr(inode, attr); 610 if (error) 611 return error; 612 613 return 0; 614 } 615 616 617 static struct file_operations hfs_file_operations = { 618 .llseek = generic_file_llseek, 619 .read = generic_file_read, 620 .write = generic_file_write, 621 .mmap = generic_file_mmap, 622 .sendfile = generic_file_sendfile, 623 .fsync = file_fsync, 624 .open = hfs_file_open, 625 .release = hfs_file_release, 626 }; 627 628 static struct inode_operations hfs_file_inode_operations = { 629 .lookup = hfs_file_lookup, 630 .truncate = hfs_file_truncate, 631 .setattr = hfs_inode_setattr, 632 .permission = hfs_permission, 633 .setxattr = hfs_setxattr, 634 .getxattr = hfs_getxattr, 635 .listxattr = hfs_listxattr, 636 }; 637