1 /* 2 * fs/f2fs/namei.c 3 * 4 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 5 * http://www.samsung.com/ 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 #include <linux/fs.h> 12 #include <linux/f2fs_fs.h> 13 #include <linux/pagemap.h> 14 #include <linux/sched.h> 15 #include <linux/ctype.h> 16 #include <linux/dcache.h> 17 18 #include "f2fs.h" 19 #include "node.h" 20 #include "xattr.h" 21 #include "acl.h" 22 #include <trace/events/f2fs.h> 23 24 static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode) 25 { 26 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 27 nid_t ino; 28 struct inode *inode; 29 bool nid_free = false; 30 int err; 31 32 inode = new_inode(dir->i_sb); 33 if (!inode) 34 return ERR_PTR(-ENOMEM); 35 36 f2fs_lock_op(sbi); 37 if (!alloc_nid(sbi, &ino)) { 38 f2fs_unlock_op(sbi); 39 err = -ENOSPC; 40 goto fail; 41 } 42 f2fs_unlock_op(sbi); 43 44 inode_init_owner(inode, dir, mode); 45 46 inode->i_ino = ino; 47 inode->i_blocks = 0; 48 inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; 49 inode->i_generation = sbi->s_next_generation++; 50 51 err = insert_inode_locked(inode); 52 if (err) { 53 err = -EINVAL; 54 nid_free = true; 55 goto out; 56 } 57 trace_f2fs_new_inode(inode, 0); 58 mark_inode_dirty(inode); 59 return inode; 60 61 out: 62 clear_nlink(inode); 63 unlock_new_inode(inode); 64 fail: 65 trace_f2fs_new_inode(inode, err); 66 make_bad_inode(inode); 67 iput(inode); 68 if (nid_free) 69 alloc_nid_failed(sbi, ino); 70 return ERR_PTR(err); 71 } 72 73 static int is_multimedia_file(const unsigned char *s, const char *sub) 74 { 75 size_t slen = strlen(s); 76 size_t sublen = strlen(sub); 77 78 if (sublen > slen) 79 return 0; 80 81 return !strncasecmp(s + slen - sublen, sub, sublen); 82 } 83 84 /* 85 * Set multimedia files as cold files for hot/cold data separation 86 */ 87 static inline void set_cold_files(struct f2fs_sb_info *sbi, struct inode *inode, 88 const unsigned char *name) 89 { 90 int i; 91 __u8 (*extlist)[8] = sbi->raw_super->extension_list; 92 93 int count = le32_to_cpu(sbi->raw_super->extension_count); 94 for (i = 0; i < count; i++) { 95 if (is_multimedia_file(name, extlist[i])) { 96 file_set_cold(inode); 97 break; 98 } 99 } 100 } 101 102 static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode, 103 bool excl) 104 { 105 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 106 struct inode *inode; 107 nid_t ino = 0; 108 int err; 109 110 f2fs_balance_fs(sbi); 111 112 inode = f2fs_new_inode(dir, mode); 113 if (IS_ERR(inode)) 114 return PTR_ERR(inode); 115 116 if (!test_opt(sbi, DISABLE_EXT_IDENTIFY)) 117 set_cold_files(sbi, inode, dentry->d_name.name); 118 119 inode->i_op = &f2fs_file_inode_operations; 120 inode->i_fop = &f2fs_file_operations; 121 inode->i_mapping->a_ops = &f2fs_dblock_aops; 122 ino = inode->i_ino; 123 124 f2fs_lock_op(sbi); 125 err = f2fs_add_link(dentry, inode); 126 f2fs_unlock_op(sbi); 127 if (err) 128 goto out; 129 130 alloc_nid_done(sbi, ino); 131 132 d_instantiate(dentry, inode); 133 unlock_new_inode(inode); 134 return 0; 135 out: 136 clear_nlink(inode); 137 unlock_new_inode(inode); 138 make_bad_inode(inode); 139 iput(inode); 140 alloc_nid_failed(sbi, ino); 141 return err; 142 } 143 144 static int f2fs_link(struct dentry *old_dentry, struct inode *dir, 145 struct dentry *dentry) 146 { 147 struct inode *inode = old_dentry->d_inode; 148 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 149 int err; 150 151 f2fs_balance_fs(sbi); 152 153 inode->i_ctime = CURRENT_TIME; 154 ihold(inode); 155 156 set_inode_flag(F2FS_I(inode), FI_INC_LINK); 157 f2fs_lock_op(sbi); 158 err = f2fs_add_link(dentry, inode); 159 f2fs_unlock_op(sbi); 160 if (err) 161 goto out; 162 163 d_instantiate(dentry, inode); 164 return 0; 165 out: 166 clear_inode_flag(F2FS_I(inode), FI_INC_LINK); 167 iput(inode); 168 return err; 169 } 170 171 struct dentry *f2fs_get_parent(struct dentry *child) 172 { 173 struct qstr dotdot = QSTR_INIT("..", 2); 174 unsigned long ino = f2fs_inode_by_name(child->d_inode, &dotdot); 175 if (!ino) 176 return ERR_PTR(-ENOENT); 177 return d_obtain_alias(f2fs_iget(child->d_inode->i_sb, ino)); 178 } 179 180 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 181 unsigned int flags) 182 { 183 struct inode *inode = NULL; 184 struct f2fs_dir_entry *de; 185 struct page *page; 186 187 if (dentry->d_name.len > F2FS_NAME_LEN) 188 return ERR_PTR(-ENAMETOOLONG); 189 190 de = f2fs_find_entry(dir, &dentry->d_name, &page); 191 if (de) { 192 nid_t ino = le32_to_cpu(de->ino); 193 kunmap(page); 194 f2fs_put_page(page, 0); 195 196 inode = f2fs_iget(dir->i_sb, ino); 197 if (IS_ERR(inode)) 198 return ERR_CAST(inode); 199 200 stat_inc_inline_inode(inode); 201 } 202 203 return d_splice_alias(inode, dentry); 204 } 205 206 static int f2fs_unlink(struct inode *dir, struct dentry *dentry) 207 { 208 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 209 struct inode *inode = dentry->d_inode; 210 struct f2fs_dir_entry *de; 211 struct page *page; 212 int err = -ENOENT; 213 214 trace_f2fs_unlink_enter(dir, dentry); 215 f2fs_balance_fs(sbi); 216 217 de = f2fs_find_entry(dir, &dentry->d_name, &page); 218 if (!de) 219 goto fail; 220 221 f2fs_lock_op(sbi); 222 err = acquire_orphan_inode(sbi); 223 if (err) { 224 f2fs_unlock_op(sbi); 225 kunmap(page); 226 f2fs_put_page(page, 0); 227 goto fail; 228 } 229 f2fs_delete_entry(de, page, inode); 230 f2fs_unlock_op(sbi); 231 232 /* In order to evict this inode, we set it dirty */ 233 mark_inode_dirty(inode); 234 fail: 235 trace_f2fs_unlink_exit(inode, err); 236 return err; 237 } 238 239 static int f2fs_symlink(struct inode *dir, struct dentry *dentry, 240 const char *symname) 241 { 242 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 243 struct inode *inode; 244 size_t symlen = strlen(symname) + 1; 245 int err; 246 247 f2fs_balance_fs(sbi); 248 249 inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO); 250 if (IS_ERR(inode)) 251 return PTR_ERR(inode); 252 253 inode->i_op = &f2fs_symlink_inode_operations; 254 inode->i_mapping->a_ops = &f2fs_dblock_aops; 255 256 f2fs_lock_op(sbi); 257 err = f2fs_add_link(dentry, inode); 258 f2fs_unlock_op(sbi); 259 if (err) 260 goto out; 261 262 err = page_symlink(inode, symname, symlen); 263 alloc_nid_done(sbi, inode->i_ino); 264 265 d_instantiate(dentry, inode); 266 unlock_new_inode(inode); 267 return err; 268 out: 269 clear_nlink(inode); 270 unlock_new_inode(inode); 271 make_bad_inode(inode); 272 iput(inode); 273 alloc_nid_failed(sbi, inode->i_ino); 274 return err; 275 } 276 277 static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) 278 { 279 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 280 struct inode *inode; 281 int err; 282 283 f2fs_balance_fs(sbi); 284 285 inode = f2fs_new_inode(dir, S_IFDIR | mode); 286 if (IS_ERR(inode)) 287 return PTR_ERR(inode); 288 289 inode->i_op = &f2fs_dir_inode_operations; 290 inode->i_fop = &f2fs_dir_operations; 291 inode->i_mapping->a_ops = &f2fs_dblock_aops; 292 mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO); 293 294 set_inode_flag(F2FS_I(inode), FI_INC_LINK); 295 f2fs_lock_op(sbi); 296 err = f2fs_add_link(dentry, inode); 297 f2fs_unlock_op(sbi); 298 if (err) 299 goto out_fail; 300 301 alloc_nid_done(sbi, inode->i_ino); 302 303 d_instantiate(dentry, inode); 304 unlock_new_inode(inode); 305 306 return 0; 307 308 out_fail: 309 clear_inode_flag(F2FS_I(inode), FI_INC_LINK); 310 clear_nlink(inode); 311 unlock_new_inode(inode); 312 make_bad_inode(inode); 313 iput(inode); 314 alloc_nid_failed(sbi, inode->i_ino); 315 return err; 316 } 317 318 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) 319 { 320 struct inode *inode = dentry->d_inode; 321 if (f2fs_empty_dir(inode)) 322 return f2fs_unlink(dir, dentry); 323 return -ENOTEMPTY; 324 } 325 326 static int f2fs_mknod(struct inode *dir, struct dentry *dentry, 327 umode_t mode, dev_t rdev) 328 { 329 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 330 struct inode *inode; 331 int err = 0; 332 333 if (!new_valid_dev(rdev)) 334 return -EINVAL; 335 336 f2fs_balance_fs(sbi); 337 338 inode = f2fs_new_inode(dir, mode); 339 if (IS_ERR(inode)) 340 return PTR_ERR(inode); 341 342 init_special_inode(inode, inode->i_mode, rdev); 343 inode->i_op = &f2fs_special_inode_operations; 344 345 f2fs_lock_op(sbi); 346 err = f2fs_add_link(dentry, inode); 347 f2fs_unlock_op(sbi); 348 if (err) 349 goto out; 350 351 alloc_nid_done(sbi, inode->i_ino); 352 d_instantiate(dentry, inode); 353 unlock_new_inode(inode); 354 return 0; 355 out: 356 clear_nlink(inode); 357 unlock_new_inode(inode); 358 make_bad_inode(inode); 359 iput(inode); 360 alloc_nid_failed(sbi, inode->i_ino); 361 return err; 362 } 363 364 static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, 365 struct inode *new_dir, struct dentry *new_dentry) 366 { 367 struct f2fs_sb_info *sbi = F2FS_SB(old_dir->i_sb); 368 struct inode *old_inode = old_dentry->d_inode; 369 struct inode *new_inode = new_dentry->d_inode; 370 struct page *old_dir_page; 371 struct page *old_page, *new_page; 372 struct f2fs_dir_entry *old_dir_entry = NULL; 373 struct f2fs_dir_entry *old_entry; 374 struct f2fs_dir_entry *new_entry; 375 int err = -ENOENT; 376 377 f2fs_balance_fs(sbi); 378 379 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 380 if (!old_entry) 381 goto out; 382 383 if (S_ISDIR(old_inode->i_mode)) { 384 err = -EIO; 385 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); 386 if (!old_dir_entry) 387 goto out_old; 388 } 389 390 if (new_inode) { 391 392 err = -ENOTEMPTY; 393 if (old_dir_entry && !f2fs_empty_dir(new_inode)) 394 goto out_dir; 395 396 err = -ENOENT; 397 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, 398 &new_page); 399 if (!new_entry) 400 goto out_dir; 401 402 f2fs_lock_op(sbi); 403 404 err = acquire_orphan_inode(sbi); 405 if (err) 406 goto put_out_dir; 407 408 if (update_dent_inode(old_inode, &new_dentry->d_name)) { 409 release_orphan_inode(sbi); 410 goto put_out_dir; 411 } 412 413 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 414 415 new_inode->i_ctime = CURRENT_TIME; 416 down_write(&F2FS_I(new_inode)->i_sem); 417 if (old_dir_entry) 418 drop_nlink(new_inode); 419 drop_nlink(new_inode); 420 up_write(&F2FS_I(new_inode)->i_sem); 421 422 mark_inode_dirty(new_inode); 423 424 if (!new_inode->i_nlink) 425 add_orphan_inode(sbi, new_inode->i_ino); 426 else 427 release_orphan_inode(sbi); 428 429 update_inode_page(old_inode); 430 update_inode_page(new_inode); 431 } else { 432 f2fs_lock_op(sbi); 433 434 err = f2fs_add_link(new_dentry, old_inode); 435 if (err) { 436 f2fs_unlock_op(sbi); 437 goto out_dir; 438 } 439 440 if (old_dir_entry) { 441 inc_nlink(new_dir); 442 update_inode_page(new_dir); 443 } 444 } 445 446 down_write(&F2FS_I(old_inode)->i_sem); 447 file_lost_pino(old_inode); 448 up_write(&F2FS_I(old_inode)->i_sem); 449 450 old_inode->i_ctime = CURRENT_TIME; 451 mark_inode_dirty(old_inode); 452 453 f2fs_delete_entry(old_entry, old_page, NULL); 454 455 if (old_dir_entry) { 456 if (old_dir != new_dir) { 457 f2fs_set_link(old_inode, old_dir_entry, 458 old_dir_page, new_dir); 459 update_inode_page(old_inode); 460 } else { 461 kunmap(old_dir_page); 462 f2fs_put_page(old_dir_page, 0); 463 } 464 drop_nlink(old_dir); 465 mark_inode_dirty(old_dir); 466 update_inode_page(old_dir); 467 } 468 469 f2fs_unlock_op(sbi); 470 return 0; 471 472 put_out_dir: 473 f2fs_unlock_op(sbi); 474 kunmap(new_page); 475 f2fs_put_page(new_page, 0); 476 out_dir: 477 if (old_dir_entry) { 478 kunmap(old_dir_page); 479 f2fs_put_page(old_dir_page, 0); 480 } 481 out_old: 482 kunmap(old_page); 483 f2fs_put_page(old_page, 0); 484 out: 485 return err; 486 } 487 488 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, 489 struct inode *new_dir, struct dentry *new_dentry) 490 { 491 struct super_block *sb = old_dir->i_sb; 492 struct f2fs_sb_info *sbi = F2FS_SB(sb); 493 struct inode *old_inode = old_dentry->d_inode; 494 struct inode *new_inode = new_dentry->d_inode; 495 struct page *old_dir_page, *new_dir_page; 496 struct page *old_page, *new_page; 497 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; 498 struct f2fs_dir_entry *old_entry, *new_entry; 499 int old_nlink = 0, new_nlink = 0; 500 int err = -ENOENT; 501 502 f2fs_balance_fs(sbi); 503 504 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 505 if (!old_entry) 506 goto out; 507 508 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); 509 if (!new_entry) 510 goto out_old; 511 512 /* prepare for updating ".." directory entry info later */ 513 if (old_dir != new_dir) { 514 if (S_ISDIR(old_inode->i_mode)) { 515 err = -EIO; 516 old_dir_entry = f2fs_parent_dir(old_inode, 517 &old_dir_page); 518 if (!old_dir_entry) 519 goto out_new; 520 } 521 522 if (S_ISDIR(new_inode->i_mode)) { 523 err = -EIO; 524 new_dir_entry = f2fs_parent_dir(new_inode, 525 &new_dir_page); 526 if (!new_dir_entry) 527 goto out_old_dir; 528 } 529 } 530 531 /* 532 * If cross rename between file and directory those are not 533 * in the same directory, we will inc nlink of file's parent 534 * later, so we should check upper boundary of its nlink. 535 */ 536 if ((!old_dir_entry || !new_dir_entry) && 537 old_dir_entry != new_dir_entry) { 538 old_nlink = old_dir_entry ? -1 : 1; 539 new_nlink = -old_nlink; 540 err = -EMLINK; 541 if ((old_nlink > 0 && old_inode->i_nlink >= F2FS_LINK_MAX) || 542 (new_nlink > 0 && new_inode->i_nlink >= F2FS_LINK_MAX)) 543 goto out_new_dir; 544 } 545 546 f2fs_lock_op(sbi); 547 548 err = update_dent_inode(old_inode, &new_dentry->d_name); 549 if (err) 550 goto out_unlock; 551 552 err = update_dent_inode(new_inode, &old_dentry->d_name); 553 if (err) 554 goto out_undo; 555 556 /* update ".." directory entry info of old dentry */ 557 if (old_dir_entry) 558 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); 559 560 /* update ".." directory entry info of new dentry */ 561 if (new_dir_entry) 562 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir); 563 564 /* update directory entry info of old dir inode */ 565 f2fs_set_link(old_dir, old_entry, old_page, new_inode); 566 567 down_write(&F2FS_I(old_inode)->i_sem); 568 file_lost_pino(old_inode); 569 up_write(&F2FS_I(old_inode)->i_sem); 570 571 update_inode_page(old_inode); 572 573 old_dir->i_ctime = CURRENT_TIME; 574 if (old_nlink) { 575 down_write(&F2FS_I(old_dir)->i_sem); 576 if (old_nlink < 0) 577 drop_nlink(old_dir); 578 else 579 inc_nlink(old_dir); 580 up_write(&F2FS_I(old_dir)->i_sem); 581 } 582 mark_inode_dirty(old_dir); 583 update_inode_page(old_dir); 584 585 /* update directory entry info of new dir inode */ 586 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 587 588 down_write(&F2FS_I(new_inode)->i_sem); 589 file_lost_pino(new_inode); 590 up_write(&F2FS_I(new_inode)->i_sem); 591 592 update_inode_page(new_inode); 593 594 new_dir->i_ctime = CURRENT_TIME; 595 if (new_nlink) { 596 down_write(&F2FS_I(new_dir)->i_sem); 597 if (new_nlink < 0) 598 drop_nlink(new_dir); 599 else 600 inc_nlink(new_dir); 601 up_write(&F2FS_I(new_dir)->i_sem); 602 } 603 mark_inode_dirty(new_dir); 604 update_inode_page(new_dir); 605 606 f2fs_unlock_op(sbi); 607 return 0; 608 out_undo: 609 /* Still we may fail to recover name info of f2fs_inode here */ 610 update_dent_inode(old_inode, &old_dentry->d_name); 611 out_unlock: 612 f2fs_unlock_op(sbi); 613 out_new_dir: 614 if (new_dir_entry) { 615 kunmap(new_dir_page); 616 f2fs_put_page(new_dir_page, 0); 617 } 618 out_old_dir: 619 if (old_dir_entry) { 620 kunmap(old_dir_page); 621 f2fs_put_page(old_dir_page, 0); 622 } 623 out_new: 624 kunmap(new_page); 625 f2fs_put_page(new_page, 0); 626 out_old: 627 kunmap(old_page); 628 f2fs_put_page(old_page, 0); 629 out: 630 return err; 631 } 632 633 static int f2fs_rename2(struct inode *old_dir, struct dentry *old_dentry, 634 struct inode *new_dir, struct dentry *new_dentry, 635 unsigned int flags) 636 { 637 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE)) 638 return -EINVAL; 639 640 if (flags & RENAME_EXCHANGE) { 641 return f2fs_cross_rename(old_dir, old_dentry, 642 new_dir, new_dentry); 643 } 644 /* 645 * VFS has already handled the new dentry existence case, 646 * here, we just deal with "RENAME_NOREPLACE" as regular rename. 647 */ 648 return f2fs_rename(old_dir, old_dentry, new_dir, new_dentry); 649 } 650 651 static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode) 652 { 653 struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb); 654 struct inode *inode; 655 int err; 656 657 inode = f2fs_new_inode(dir, mode); 658 if (IS_ERR(inode)) 659 return PTR_ERR(inode); 660 661 inode->i_op = &f2fs_file_inode_operations; 662 inode->i_fop = &f2fs_file_operations; 663 inode->i_mapping->a_ops = &f2fs_dblock_aops; 664 665 f2fs_lock_op(sbi); 666 err = acquire_orphan_inode(sbi); 667 if (err) 668 goto out; 669 670 err = f2fs_do_tmpfile(inode, dir); 671 if (err) 672 goto release_out; 673 674 /* 675 * add this non-linked tmpfile to orphan list, in this way we could 676 * remove all unused data of tmpfile after abnormal power-off. 677 */ 678 add_orphan_inode(sbi, inode->i_ino); 679 f2fs_unlock_op(sbi); 680 681 alloc_nid_done(sbi, inode->i_ino); 682 d_tmpfile(dentry, inode); 683 unlock_new_inode(inode); 684 return 0; 685 686 release_out: 687 release_orphan_inode(sbi); 688 out: 689 f2fs_unlock_op(sbi); 690 clear_nlink(inode); 691 unlock_new_inode(inode); 692 make_bad_inode(inode); 693 iput(inode); 694 alloc_nid_failed(sbi, inode->i_ino); 695 return err; 696 } 697 698 const struct inode_operations f2fs_dir_inode_operations = { 699 .create = f2fs_create, 700 .lookup = f2fs_lookup, 701 .link = f2fs_link, 702 .unlink = f2fs_unlink, 703 .symlink = f2fs_symlink, 704 .mkdir = f2fs_mkdir, 705 .rmdir = f2fs_rmdir, 706 .mknod = f2fs_mknod, 707 .rename = f2fs_rename, 708 .rename2 = f2fs_rename2, 709 .tmpfile = f2fs_tmpfile, 710 .getattr = f2fs_getattr, 711 .setattr = f2fs_setattr, 712 .get_acl = f2fs_get_acl, 713 .set_acl = f2fs_set_acl, 714 #ifdef CONFIG_F2FS_FS_XATTR 715 .setxattr = generic_setxattr, 716 .getxattr = generic_getxattr, 717 .listxattr = f2fs_listxattr, 718 .removexattr = generic_removexattr, 719 #endif 720 }; 721 722 const struct inode_operations f2fs_symlink_inode_operations = { 723 .readlink = generic_readlink, 724 .follow_link = page_follow_link_light, 725 .put_link = page_put_link, 726 .getattr = f2fs_getattr, 727 .setattr = f2fs_setattr, 728 #ifdef CONFIG_F2FS_FS_XATTR 729 .setxattr = generic_setxattr, 730 .getxattr = generic_getxattr, 731 .listxattr = f2fs_listxattr, 732 .removexattr = generic_removexattr, 733 #endif 734 }; 735 736 const struct inode_operations f2fs_special_inode_operations = { 737 .getattr = f2fs_getattr, 738 .setattr = f2fs_setattr, 739 .get_acl = f2fs_get_acl, 740 .set_acl = f2fs_set_acl, 741 #ifdef CONFIG_F2FS_FS_XATTR 742 .setxattr = generic_setxattr, 743 .getxattr = generic_getxattr, 744 .listxattr = f2fs_listxattr, 745 .removexattr = generic_removexattr, 746 #endif 747 }; 748