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