1 /* 2 * linux/fs/hpfs/namei.c 3 * 4 * Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 1998-1999 5 * 6 * adding & removing files & directories 7 */ 8 #include <linux/sched.h> 9 #include <linux/smp_lock.h> 10 #include "hpfs_fn.h" 11 12 static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) 13 { 14 const unsigned char *name = dentry->d_name.name; 15 unsigned len = dentry->d_name.len; 16 struct quad_buffer_head qbh0; 17 struct buffer_head *bh; 18 struct hpfs_dirent *de; 19 struct fnode *fnode; 20 struct dnode *dnode; 21 struct inode *result; 22 fnode_secno fno; 23 dnode_secno dno; 24 int r; 25 struct hpfs_dirent dee; 26 int err; 27 if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; 28 lock_kernel(); 29 err = -ENOSPC; 30 fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh); 31 if (!fnode) 32 goto bail; 33 dnode = hpfs_alloc_dnode(dir->i_sb, fno, &dno, &qbh0, 1); 34 if (!dnode) 35 goto bail1; 36 memset(&dee, 0, sizeof dee); 37 dee.directory = 1; 38 if (!(mode & 0222)) dee.read_only = 1; 39 /*dee.archive = 0;*/ 40 dee.hidden = name[0] == '.'; 41 dee.fnode = fno; 42 dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); 43 result = new_inode(dir->i_sb); 44 if (!result) 45 goto bail2; 46 hpfs_init_inode(result); 47 result->i_ino = fno; 48 hpfs_i(result)->i_parent_dir = dir->i_ino; 49 hpfs_i(result)->i_dno = dno; 50 result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); 51 result->i_ctime.tv_nsec = 0; 52 result->i_mtime.tv_nsec = 0; 53 result->i_atime.tv_nsec = 0; 54 hpfs_i(result)->i_ea_size = 0; 55 result->i_mode |= S_IFDIR; 56 result->i_op = &hpfs_dir_iops; 57 result->i_fop = &hpfs_dir_ops; 58 result->i_blocks = 4; 59 result->i_size = 2048; 60 result->i_nlink = 2; 61 if (dee.read_only) 62 result->i_mode &= ~0222; 63 64 mutex_lock(&hpfs_i(dir)->i_mutex); 65 r = hpfs_add_dirent(dir, name, len, &dee, 0); 66 if (r == 1) 67 goto bail3; 68 if (r == -1) { 69 err = -EEXIST; 70 goto bail3; 71 } 72 fnode->len = len; 73 memcpy(fnode->name, name, len > 15 ? 15 : len); 74 fnode->up = dir->i_ino; 75 fnode->dirflag = 1; 76 fnode->btree.n_free_nodes = 7; 77 fnode->btree.n_used_nodes = 1; 78 fnode->btree.first_free = 0x14; 79 fnode->u.external[0].disk_secno = dno; 80 fnode->u.external[0].file_secno = -1; 81 dnode->root_dnode = 1; 82 dnode->up = fno; 83 de = hpfs_add_de(dir->i_sb, dnode, "\001\001", 2, 0); 84 de->creation_date = de->write_date = de->read_date = gmt_to_local(dir->i_sb, get_seconds()); 85 if (!(mode & 0222)) de->read_only = 1; 86 de->first = de->directory = 1; 87 /*de->hidden = de->system = 0;*/ 88 de->fnode = fno; 89 mark_buffer_dirty(bh); 90 brelse(bh); 91 hpfs_mark_4buffers_dirty(&qbh0); 92 hpfs_brelse4(&qbh0); 93 inc_nlink(dir); 94 insert_inode_hash(result); 95 96 if (result->i_uid != current_fsuid() || 97 result->i_gid != current_fsgid() || 98 result->i_mode != (mode | S_IFDIR)) { 99 result->i_uid = current_fsuid(); 100 result->i_gid = current_fsgid(); 101 result->i_mode = mode | S_IFDIR; 102 hpfs_write_inode_nolock(result); 103 } 104 d_instantiate(dentry, result); 105 mutex_unlock(&hpfs_i(dir)->i_mutex); 106 unlock_kernel(); 107 return 0; 108 bail3: 109 mutex_unlock(&hpfs_i(dir)->i_mutex); 110 iput(result); 111 bail2: 112 hpfs_brelse4(&qbh0); 113 hpfs_free_dnode(dir->i_sb, dno); 114 bail1: 115 brelse(bh); 116 hpfs_free_sectors(dir->i_sb, fno, 1); 117 bail: 118 unlock_kernel(); 119 return err; 120 } 121 122 static int hpfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) 123 { 124 const unsigned char *name = dentry->d_name.name; 125 unsigned len = dentry->d_name.len; 126 struct inode *result = NULL; 127 struct buffer_head *bh; 128 struct fnode *fnode; 129 fnode_secno fno; 130 int r; 131 struct hpfs_dirent dee; 132 int err; 133 if ((err = hpfs_chk_name(name, &len))) 134 return err==-ENOENT ? -EINVAL : err; 135 lock_kernel(); 136 err = -ENOSPC; 137 fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh); 138 if (!fnode) 139 goto bail; 140 memset(&dee, 0, sizeof dee); 141 if (!(mode & 0222)) dee.read_only = 1; 142 dee.archive = 1; 143 dee.hidden = name[0] == '.'; 144 dee.fnode = fno; 145 dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); 146 147 result = new_inode(dir->i_sb); 148 if (!result) 149 goto bail1; 150 151 hpfs_init_inode(result); 152 result->i_ino = fno; 153 result->i_mode |= S_IFREG; 154 result->i_mode &= ~0111; 155 result->i_op = &hpfs_file_iops; 156 result->i_fop = &hpfs_file_ops; 157 result->i_nlink = 1; 158 hpfs_decide_conv(result, name, len); 159 hpfs_i(result)->i_parent_dir = dir->i_ino; 160 result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); 161 result->i_ctime.tv_nsec = 0; 162 result->i_mtime.tv_nsec = 0; 163 result->i_atime.tv_nsec = 0; 164 hpfs_i(result)->i_ea_size = 0; 165 if (dee.read_only) 166 result->i_mode &= ~0222; 167 result->i_blocks = 1; 168 result->i_size = 0; 169 result->i_data.a_ops = &hpfs_aops; 170 hpfs_i(result)->mmu_private = 0; 171 172 mutex_lock(&hpfs_i(dir)->i_mutex); 173 r = hpfs_add_dirent(dir, name, len, &dee, 0); 174 if (r == 1) 175 goto bail2; 176 if (r == -1) { 177 err = -EEXIST; 178 goto bail2; 179 } 180 fnode->len = len; 181 memcpy(fnode->name, name, len > 15 ? 15 : len); 182 fnode->up = dir->i_ino; 183 mark_buffer_dirty(bh); 184 brelse(bh); 185 186 insert_inode_hash(result); 187 188 if (result->i_uid != current_fsuid() || 189 result->i_gid != current_fsgid() || 190 result->i_mode != (mode | S_IFREG)) { 191 result->i_uid = current_fsuid(); 192 result->i_gid = current_fsgid(); 193 result->i_mode = mode | S_IFREG; 194 hpfs_write_inode_nolock(result); 195 } 196 d_instantiate(dentry, result); 197 mutex_unlock(&hpfs_i(dir)->i_mutex); 198 unlock_kernel(); 199 return 0; 200 201 bail2: 202 mutex_unlock(&hpfs_i(dir)->i_mutex); 203 iput(result); 204 bail1: 205 brelse(bh); 206 hpfs_free_sectors(dir->i_sb, fno, 1); 207 bail: 208 unlock_kernel(); 209 return err; 210 } 211 212 static int hpfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) 213 { 214 const unsigned char *name = dentry->d_name.name; 215 unsigned len = dentry->d_name.len; 216 struct buffer_head *bh; 217 struct fnode *fnode; 218 fnode_secno fno; 219 int r; 220 struct hpfs_dirent dee; 221 struct inode *result = NULL; 222 int err; 223 if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; 224 if (hpfs_sb(dir->i_sb)->sb_eas < 2) return -EPERM; 225 if (!new_valid_dev(rdev)) 226 return -EINVAL; 227 lock_kernel(); 228 err = -ENOSPC; 229 fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh); 230 if (!fnode) 231 goto bail; 232 memset(&dee, 0, sizeof dee); 233 if (!(mode & 0222)) dee.read_only = 1; 234 dee.archive = 1; 235 dee.hidden = name[0] == '.'; 236 dee.fnode = fno; 237 dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); 238 239 result = new_inode(dir->i_sb); 240 if (!result) 241 goto bail1; 242 243 hpfs_init_inode(result); 244 result->i_ino = fno; 245 hpfs_i(result)->i_parent_dir = dir->i_ino; 246 result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); 247 result->i_ctime.tv_nsec = 0; 248 result->i_mtime.tv_nsec = 0; 249 result->i_atime.tv_nsec = 0; 250 hpfs_i(result)->i_ea_size = 0; 251 result->i_uid = current_fsuid(); 252 result->i_gid = current_fsgid(); 253 result->i_nlink = 1; 254 result->i_size = 0; 255 result->i_blocks = 1; 256 init_special_inode(result, mode, rdev); 257 258 mutex_lock(&hpfs_i(dir)->i_mutex); 259 r = hpfs_add_dirent(dir, name, len, &dee, 0); 260 if (r == 1) 261 goto bail2; 262 if (r == -1) { 263 err = -EEXIST; 264 goto bail2; 265 } 266 fnode->len = len; 267 memcpy(fnode->name, name, len > 15 ? 15 : len); 268 fnode->up = dir->i_ino; 269 mark_buffer_dirty(bh); 270 271 insert_inode_hash(result); 272 273 hpfs_write_inode_nolock(result); 274 d_instantiate(dentry, result); 275 mutex_unlock(&hpfs_i(dir)->i_mutex); 276 brelse(bh); 277 unlock_kernel(); 278 return 0; 279 bail2: 280 mutex_unlock(&hpfs_i(dir)->i_mutex); 281 iput(result); 282 bail1: 283 brelse(bh); 284 hpfs_free_sectors(dir->i_sb, fno, 1); 285 bail: 286 unlock_kernel(); 287 return err; 288 } 289 290 static int hpfs_symlink(struct inode *dir, struct dentry *dentry, const char *symlink) 291 { 292 const unsigned char *name = dentry->d_name.name; 293 unsigned len = dentry->d_name.len; 294 struct buffer_head *bh; 295 struct fnode *fnode; 296 fnode_secno fno; 297 int r; 298 struct hpfs_dirent dee; 299 struct inode *result; 300 int err; 301 if ((err = hpfs_chk_name(name, &len))) return err==-ENOENT ? -EINVAL : err; 302 lock_kernel(); 303 if (hpfs_sb(dir->i_sb)->sb_eas < 2) { 304 unlock_kernel(); 305 return -EPERM; 306 } 307 err = -ENOSPC; 308 fnode = hpfs_alloc_fnode(dir->i_sb, hpfs_i(dir)->i_dno, &fno, &bh); 309 if (!fnode) 310 goto bail; 311 memset(&dee, 0, sizeof dee); 312 dee.archive = 1; 313 dee.hidden = name[0] == '.'; 314 dee.fnode = fno; 315 dee.creation_date = dee.write_date = dee.read_date = gmt_to_local(dir->i_sb, get_seconds()); 316 317 result = new_inode(dir->i_sb); 318 if (!result) 319 goto bail1; 320 result->i_ino = fno; 321 hpfs_init_inode(result); 322 hpfs_i(result)->i_parent_dir = dir->i_ino; 323 result->i_ctime.tv_sec = result->i_mtime.tv_sec = result->i_atime.tv_sec = local_to_gmt(dir->i_sb, dee.creation_date); 324 result->i_ctime.tv_nsec = 0; 325 result->i_mtime.tv_nsec = 0; 326 result->i_atime.tv_nsec = 0; 327 hpfs_i(result)->i_ea_size = 0; 328 result->i_mode = S_IFLNK | 0777; 329 result->i_uid = current_fsuid(); 330 result->i_gid = current_fsgid(); 331 result->i_blocks = 1; 332 result->i_nlink = 1; 333 result->i_size = strlen(symlink); 334 result->i_op = &page_symlink_inode_operations; 335 result->i_data.a_ops = &hpfs_symlink_aops; 336 337 mutex_lock(&hpfs_i(dir)->i_mutex); 338 r = hpfs_add_dirent(dir, name, len, &dee, 0); 339 if (r == 1) 340 goto bail2; 341 if (r == -1) { 342 err = -EEXIST; 343 goto bail2; 344 } 345 fnode->len = len; 346 memcpy(fnode->name, name, len > 15 ? 15 : len); 347 fnode->up = dir->i_ino; 348 hpfs_set_ea(result, fnode, "SYMLINK", symlink, strlen(symlink)); 349 mark_buffer_dirty(bh); 350 brelse(bh); 351 352 insert_inode_hash(result); 353 354 hpfs_write_inode_nolock(result); 355 d_instantiate(dentry, result); 356 mutex_unlock(&hpfs_i(dir)->i_mutex); 357 unlock_kernel(); 358 return 0; 359 bail2: 360 mutex_unlock(&hpfs_i(dir)->i_mutex); 361 iput(result); 362 bail1: 363 brelse(bh); 364 hpfs_free_sectors(dir->i_sb, fno, 1); 365 bail: 366 unlock_kernel(); 367 return err; 368 } 369 370 static int hpfs_unlink(struct inode *dir, struct dentry *dentry) 371 { 372 const unsigned char *name = dentry->d_name.name; 373 unsigned len = dentry->d_name.len; 374 struct quad_buffer_head qbh; 375 struct hpfs_dirent *de; 376 struct inode *inode = dentry->d_inode; 377 dnode_secno dno; 378 fnode_secno fno; 379 int r; 380 int rep = 0; 381 int err; 382 383 lock_kernel(); 384 hpfs_adjust_length(name, &len); 385 again: 386 mutex_lock(&hpfs_i(inode)->i_parent_mutex); 387 mutex_lock(&hpfs_i(dir)->i_mutex); 388 err = -ENOENT; 389 de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); 390 if (!de) 391 goto out; 392 393 err = -EPERM; 394 if (de->first) 395 goto out1; 396 397 err = -EISDIR; 398 if (de->directory) 399 goto out1; 400 401 fno = de->fnode; 402 r = hpfs_remove_dirent(dir, dno, de, &qbh, 1); 403 switch (r) { 404 case 1: 405 hpfs_error(dir->i_sb, "there was error when removing dirent"); 406 err = -EFSERROR; 407 break; 408 case 2: /* no space for deleting, try to truncate file */ 409 410 err = -ENOSPC; 411 if (rep++) 412 break; 413 414 mutex_unlock(&hpfs_i(dir)->i_mutex); 415 mutex_unlock(&hpfs_i(inode)->i_parent_mutex); 416 dentry_unhash(dentry); 417 if (!d_unhashed(dentry)) { 418 dput(dentry); 419 unlock_kernel(); 420 return -ENOSPC; 421 } 422 if (generic_permission(inode, MAY_WRITE, NULL) || 423 !S_ISREG(inode->i_mode) || 424 get_write_access(inode)) { 425 d_rehash(dentry); 426 dput(dentry); 427 } else { 428 struct iattr newattrs; 429 /*printk("HPFS: truncating file before delete.\n");*/ 430 newattrs.ia_size = 0; 431 newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME; 432 err = notify_change(dentry, &newattrs); 433 put_write_access(inode); 434 dput(dentry); 435 if (!err) 436 goto again; 437 } 438 unlock_kernel(); 439 return -ENOSPC; 440 default: 441 drop_nlink(inode); 442 err = 0; 443 } 444 goto out; 445 446 out1: 447 hpfs_brelse4(&qbh); 448 out: 449 mutex_unlock(&hpfs_i(dir)->i_mutex); 450 mutex_unlock(&hpfs_i(inode)->i_parent_mutex); 451 unlock_kernel(); 452 return err; 453 } 454 455 static int hpfs_rmdir(struct inode *dir, struct dentry *dentry) 456 { 457 const unsigned char *name = dentry->d_name.name; 458 unsigned len = dentry->d_name.len; 459 struct quad_buffer_head qbh; 460 struct hpfs_dirent *de; 461 struct inode *inode = dentry->d_inode; 462 dnode_secno dno; 463 fnode_secno fno; 464 int n_items = 0; 465 int err; 466 int r; 467 468 hpfs_adjust_length(name, &len); 469 lock_kernel(); 470 mutex_lock(&hpfs_i(inode)->i_parent_mutex); 471 mutex_lock(&hpfs_i(dir)->i_mutex); 472 err = -ENOENT; 473 de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, &dno, &qbh); 474 if (!de) 475 goto out; 476 477 err = -EPERM; 478 if (de->first) 479 goto out1; 480 481 err = -ENOTDIR; 482 if (!de->directory) 483 goto out1; 484 485 hpfs_count_dnodes(dir->i_sb, hpfs_i(inode)->i_dno, NULL, NULL, &n_items); 486 err = -ENOTEMPTY; 487 if (n_items) 488 goto out1; 489 490 fno = de->fnode; 491 r = hpfs_remove_dirent(dir, dno, de, &qbh, 1); 492 switch (r) { 493 case 1: 494 hpfs_error(dir->i_sb, "there was error when removing dirent"); 495 err = -EFSERROR; 496 break; 497 case 2: 498 err = -ENOSPC; 499 break; 500 default: 501 drop_nlink(dir); 502 clear_nlink(inode); 503 err = 0; 504 } 505 goto out; 506 out1: 507 hpfs_brelse4(&qbh); 508 out: 509 mutex_unlock(&hpfs_i(dir)->i_mutex); 510 mutex_unlock(&hpfs_i(inode)->i_parent_mutex); 511 unlock_kernel(); 512 return err; 513 } 514 515 static int hpfs_symlink_readpage(struct file *file, struct page *page) 516 { 517 char *link = kmap(page); 518 struct inode *i = page->mapping->host; 519 struct fnode *fnode; 520 struct buffer_head *bh; 521 int err; 522 523 err = -EIO; 524 lock_kernel(); 525 if (!(fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh))) 526 goto fail; 527 err = hpfs_read_ea(i->i_sb, fnode, "SYMLINK", link, PAGE_SIZE); 528 brelse(bh); 529 if (err) 530 goto fail; 531 unlock_kernel(); 532 SetPageUptodate(page); 533 kunmap(page); 534 unlock_page(page); 535 return 0; 536 537 fail: 538 unlock_kernel(); 539 SetPageError(page); 540 kunmap(page); 541 unlock_page(page); 542 return err; 543 } 544 545 const struct address_space_operations hpfs_symlink_aops = { 546 .readpage = hpfs_symlink_readpage 547 }; 548 549 static int hpfs_rename(struct inode *old_dir, struct dentry *old_dentry, 550 struct inode *new_dir, struct dentry *new_dentry) 551 { 552 const unsigned char *old_name = old_dentry->d_name.name; 553 unsigned old_len = old_dentry->d_name.len; 554 const unsigned char *new_name = new_dentry->d_name.name; 555 unsigned new_len = new_dentry->d_name.len; 556 struct inode *i = old_dentry->d_inode; 557 struct inode *new_inode = new_dentry->d_inode; 558 struct quad_buffer_head qbh, qbh1; 559 struct hpfs_dirent *dep, *nde; 560 struct hpfs_dirent de; 561 dnode_secno dno; 562 int r; 563 struct buffer_head *bh; 564 struct fnode *fnode; 565 int err; 566 if ((err = hpfs_chk_name(new_name, &new_len))) return err; 567 err = 0; 568 hpfs_adjust_length(old_name, &old_len); 569 570 lock_kernel(); 571 /* order doesn't matter, due to VFS exclusion */ 572 mutex_lock(&hpfs_i(i)->i_parent_mutex); 573 if (new_inode) 574 mutex_lock(&hpfs_i(new_inode)->i_parent_mutex); 575 mutex_lock(&hpfs_i(old_dir)->i_mutex); 576 if (new_dir != old_dir) 577 mutex_lock(&hpfs_i(new_dir)->i_mutex); 578 579 /* Erm? Moving over the empty non-busy directory is perfectly legal */ 580 if (new_inode && S_ISDIR(new_inode->i_mode)) { 581 err = -EINVAL; 582 goto end1; 583 } 584 585 if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, old_name, old_len, &dno, &qbh))) { 586 hpfs_error(i->i_sb, "lookup succeeded but map dirent failed"); 587 err = -ENOENT; 588 goto end1; 589 } 590 copy_de(&de, dep); 591 de.hidden = new_name[0] == '.'; 592 593 if (new_inode) { 594 int r; 595 if ((r = hpfs_remove_dirent(old_dir, dno, dep, &qbh, 1)) != 2) { 596 if ((nde = map_dirent(new_dir, hpfs_i(new_dir)->i_dno, new_name, new_len, NULL, &qbh1))) { 597 clear_nlink(new_inode); 598 copy_de(nde, &de); 599 memcpy(nde->name, new_name, new_len); 600 hpfs_mark_4buffers_dirty(&qbh1); 601 hpfs_brelse4(&qbh1); 602 goto end; 603 } 604 hpfs_error(new_dir->i_sb, "hpfs_rename: could not find dirent"); 605 err = -EFSERROR; 606 goto end1; 607 } 608 err = r == 2 ? -ENOSPC : r == 1 ? -EFSERROR : 0; 609 goto end1; 610 } 611 612 if (new_dir == old_dir) hpfs_brelse4(&qbh); 613 614 hpfs_lock_creation(i->i_sb); 615 if ((r = hpfs_add_dirent(new_dir, new_name, new_len, &de, 1))) { 616 hpfs_unlock_creation(i->i_sb); 617 if (r == -1) hpfs_error(new_dir->i_sb, "hpfs_rename: dirent already exists!"); 618 err = r == 1 ? -ENOSPC : -EFSERROR; 619 if (new_dir != old_dir) hpfs_brelse4(&qbh); 620 goto end1; 621 } 622 623 if (new_dir == old_dir) 624 if (!(dep = map_dirent(old_dir, hpfs_i(old_dir)->i_dno, old_name, old_len, &dno, &qbh))) { 625 hpfs_unlock_creation(i->i_sb); 626 hpfs_error(i->i_sb, "lookup succeeded but map dirent failed at #2"); 627 err = -ENOENT; 628 goto end1; 629 } 630 631 if ((r = hpfs_remove_dirent(old_dir, dno, dep, &qbh, 0))) { 632 hpfs_unlock_creation(i->i_sb); 633 hpfs_error(i->i_sb, "hpfs_rename: could not remove dirent"); 634 err = r == 2 ? -ENOSPC : -EFSERROR; 635 goto end1; 636 } 637 hpfs_unlock_creation(i->i_sb); 638 639 end: 640 hpfs_i(i)->i_parent_dir = new_dir->i_ino; 641 if (S_ISDIR(i->i_mode)) { 642 inc_nlink(new_dir); 643 drop_nlink(old_dir); 644 } 645 if ((fnode = hpfs_map_fnode(i->i_sb, i->i_ino, &bh))) { 646 fnode->up = new_dir->i_ino; 647 fnode->len = new_len; 648 memcpy(fnode->name, new_name, new_len>15?15:new_len); 649 if (new_len < 15) memset(&fnode->name[new_len], 0, 15 - new_len); 650 mark_buffer_dirty(bh); 651 brelse(bh); 652 } 653 hpfs_i(i)->i_conv = hpfs_sb(i->i_sb)->sb_conv; 654 hpfs_decide_conv(i, new_name, new_len); 655 end1: 656 if (old_dir != new_dir) 657 mutex_unlock(&hpfs_i(new_dir)->i_mutex); 658 mutex_unlock(&hpfs_i(old_dir)->i_mutex); 659 mutex_unlock(&hpfs_i(i)->i_parent_mutex); 660 if (new_inode) 661 mutex_unlock(&hpfs_i(new_inode)->i_parent_mutex); 662 unlock_kernel(); 663 return err; 664 } 665 666 const struct inode_operations hpfs_dir_iops = 667 { 668 .create = hpfs_create, 669 .lookup = hpfs_lookup, 670 .unlink = hpfs_unlink, 671 .symlink = hpfs_symlink, 672 .mkdir = hpfs_mkdir, 673 .rmdir = hpfs_rmdir, 674 .mknod = hpfs_mknod, 675 .rename = hpfs_rename, 676 .setattr = hpfs_setattr, 677 }; 678