1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * fs/f2fs/namei.c 4 * 5 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 6 * http://www.samsung.com/ 7 */ 8 #include <linux/fs.h> 9 #include <linux/f2fs_fs.h> 10 #include <linux/pagemap.h> 11 #include <linux/sched.h> 12 #include <linux/ctype.h> 13 #include <linux/random.h> 14 #include <linux/dcache.h> 15 #include <linux/namei.h> 16 #include <linux/quotaops.h> 17 18 #include "f2fs.h" 19 #include "node.h" 20 #include "segment.h" 21 #include "xattr.h" 22 #include "acl.h" 23 #include <trace/events/f2fs.h> 24 25 static inline bool is_extension_exist(const unsigned char *s, const char *sub, 26 bool tmp_ext, bool tmp_dot) 27 { 28 size_t slen = strlen(s); 29 size_t sublen = strlen(sub); 30 int i; 31 32 if (sublen == 1 && *sub == '*') 33 return true; 34 35 /* 36 * filename format of multimedia file should be defined as: 37 * "filename + '.' + extension + (optional: '.' + temp extension)". 38 */ 39 if (slen < sublen + 2) 40 return false; 41 42 if (!tmp_ext) { 43 /* file has no temp extension */ 44 if (s[slen - sublen - 1] != '.') 45 return false; 46 return !strncasecmp(s + slen - sublen, sub, sublen); 47 } 48 49 for (i = 1; i < slen - sublen; i++) { 50 if (s[i] != '.') 51 continue; 52 if (!strncasecmp(s + i + 1, sub, sublen)) { 53 if (!tmp_dot) 54 return true; 55 if (i == slen - sublen - 1 || s[i + 1 + sublen] == '.') 56 return true; 57 } 58 } 59 60 return false; 61 } 62 63 static inline bool is_temperature_extension(const unsigned char *s, const char *sub) 64 { 65 return is_extension_exist(s, sub, true, false); 66 } 67 68 static inline bool is_compress_extension(const unsigned char *s, const char *sub) 69 { 70 return is_extension_exist(s, sub, true, true); 71 } 72 73 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 74 bool hot, bool set) 75 { 76 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 77 int cold_count = le32_to_cpu(sbi->raw_super->extension_count); 78 int hot_count = sbi->raw_super->hot_ext_count; 79 int total_count = cold_count + hot_count; 80 int start, count; 81 int i; 82 83 if (set) { 84 if (total_count == F2FS_MAX_EXTENSION) 85 return -EINVAL; 86 87 if (hot) { 88 start = 0; 89 count = cold_count; 90 } else { 91 start = cold_count; 92 count = total_count; 93 } 94 for (i = start; i < count; i++) { 95 if (!strcmp(name, extlist[i])) { 96 f2fs_warn(sbi, "extension '%s' already exists in %s list", 97 name, hot ? "cold" : "hot"); 98 return -EINVAL; 99 } 100 } 101 } else { 102 if (!hot && !cold_count) 103 return -EINVAL; 104 if (hot && !hot_count) 105 return -EINVAL; 106 } 107 108 if (hot) { 109 start = cold_count; 110 count = total_count; 111 } else { 112 start = 0; 113 count = cold_count; 114 } 115 116 for (i = start; i < count; i++) { 117 if (strcmp(name, extlist[i])) 118 continue; 119 120 if (set) 121 return -EINVAL; 122 123 memcpy(extlist[i], extlist[i + 1], 124 F2FS_EXTENSION_LEN * (total_count - i - 1)); 125 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN); 126 if (hot) 127 sbi->raw_super->hot_ext_count = hot_count - 1; 128 else 129 sbi->raw_super->extension_count = 130 cpu_to_le32(cold_count - 1); 131 return 0; 132 } 133 134 if (!set) 135 return -EINVAL; 136 137 if (hot) { 138 memcpy(extlist[count], name, strlen(name)); 139 sbi->raw_super->hot_ext_count = hot_count + 1; 140 } else { 141 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN]; 142 143 memcpy(buf, &extlist[cold_count], 144 F2FS_EXTENSION_LEN * hot_count); 145 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN); 146 memcpy(extlist[cold_count], name, strlen(name)); 147 memcpy(&extlist[cold_count + 1], buf, 148 F2FS_EXTENSION_LEN * hot_count); 149 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1); 150 } 151 return 0; 152 } 153 154 static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir, 155 struct inode *inode, const unsigned char *name) 156 { 157 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 158 unsigned char (*noext)[F2FS_EXTENSION_LEN] = 159 F2FS_OPTION(sbi).noextensions; 160 unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions; 161 unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; 162 unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; 163 int i, cold_count, hot_count; 164 165 if (!f2fs_sb_has_compression(sbi)) 166 return; 167 168 if (S_ISDIR(inode->i_mode)) 169 goto inherit_comp; 170 171 /* This name comes only from normal files. */ 172 if (!name) 173 return; 174 175 /* Don't compress hot files. */ 176 f2fs_down_read(&sbi->sb_lock); 177 cold_count = le32_to_cpu(sbi->raw_super->extension_count); 178 hot_count = sbi->raw_super->hot_ext_count; 179 for (i = cold_count; i < cold_count + hot_count; i++) 180 if (is_temperature_extension(name, extlist[i])) 181 break; 182 f2fs_up_read(&sbi->sb_lock); 183 if (i < (cold_count + hot_count)) 184 return; 185 186 /* Don't compress unallowed extension. */ 187 for (i = 0; i < noext_cnt; i++) 188 if (is_compress_extension(name, noext[i])) 189 return; 190 191 /* Compress wanting extension. */ 192 for (i = 0; i < ext_cnt; i++) { 193 if (is_compress_extension(name, ext[i])) { 194 set_compress_context(inode); 195 return; 196 } 197 } 198 inherit_comp: 199 /* Inherit the {no-}compression flag in directory */ 200 if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) { 201 F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL; 202 f2fs_mark_inode_dirty_sync(inode, true); 203 } else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) { 204 set_compress_context(inode); 205 } 206 } 207 208 /* 209 * Set file's temperature for hot/cold data separation 210 */ 211 static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode, 212 const unsigned char *name) 213 { 214 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 215 int i, cold_count, hot_count; 216 217 f2fs_down_read(&sbi->sb_lock); 218 cold_count = le32_to_cpu(sbi->raw_super->extension_count); 219 hot_count = sbi->raw_super->hot_ext_count; 220 for (i = 0; i < cold_count + hot_count; i++) 221 if (is_temperature_extension(name, extlist[i])) 222 break; 223 f2fs_up_read(&sbi->sb_lock); 224 225 if (i == cold_count + hot_count) 226 return; 227 228 if (i < cold_count) 229 file_set_cold(inode); 230 else 231 file_set_hot(inode); 232 } 233 234 static struct inode *f2fs_new_inode(struct mnt_idmap *idmap, 235 struct inode *dir, umode_t mode, 236 const char *name) 237 { 238 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 239 struct f2fs_inode_info *fi; 240 nid_t ino; 241 struct inode *inode; 242 bool nid_free = false; 243 bool encrypt = false; 244 int xattr_size = 0; 245 int err; 246 247 inode = new_inode(dir->i_sb); 248 if (!inode) 249 return ERR_PTR(-ENOMEM); 250 251 if (!f2fs_alloc_nid(sbi, &ino)) { 252 err = -ENOSPC; 253 goto fail; 254 } 255 256 nid_free = true; 257 258 inode_init_owner(idmap, inode, dir, mode); 259 260 fi = F2FS_I(inode); 261 inode->i_ino = ino; 262 inode->i_blocks = 0; 263 simple_inode_init_ts(inode); 264 fi->i_crtime = inode_get_mtime(inode); 265 inode->i_generation = get_random_u32(); 266 267 if (S_ISDIR(inode->i_mode)) 268 fi->i_current_depth = 1; 269 270 err = insert_inode_locked(inode); 271 if (err) { 272 err = -EINVAL; 273 goto fail; 274 } 275 276 if (f2fs_sb_has_project_quota(sbi) && 277 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL)) 278 fi->i_projid = F2FS_I(dir)->i_projid; 279 else 280 fi->i_projid = make_kprojid(&init_user_ns, 281 F2FS_DEF_PROJID); 282 283 err = fscrypt_prepare_new_inode(dir, inode, &encrypt); 284 if (err) 285 goto fail_drop; 286 287 err = f2fs_dquot_initialize(inode); 288 if (err) 289 goto fail_drop; 290 291 set_inode_flag(inode, FI_NEW_INODE); 292 293 if (encrypt) 294 f2fs_set_encrypted_inode(inode); 295 296 if (f2fs_sb_has_extra_attr(sbi)) { 297 set_inode_flag(inode, FI_EXTRA_ATTR); 298 fi->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE; 299 } 300 301 if (test_opt(sbi, INLINE_XATTR)) 302 set_inode_flag(inode, FI_INLINE_XATTR); 303 304 if (f2fs_may_inline_dentry(inode)) 305 set_inode_flag(inode, FI_INLINE_DENTRY); 306 307 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 308 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode)); 309 if (f2fs_has_inline_xattr(inode)) 310 xattr_size = F2FS_OPTION(sbi).inline_xattr_size; 311 /* Otherwise, will be 0 */ 312 } else if (f2fs_has_inline_xattr(inode) || 313 f2fs_has_inline_dentry(inode)) { 314 xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 315 } 316 fi->i_inline_xattr_size = xattr_size; 317 318 fi->i_flags = 319 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED); 320 321 if (S_ISDIR(inode->i_mode)) 322 fi->i_flags |= F2FS_INDEX_FL; 323 324 if (fi->i_flags & F2FS_PROJINHERIT_FL) 325 set_inode_flag(inode, FI_PROJ_INHERIT); 326 327 /* Check compression first. */ 328 set_compress_new_inode(sbi, dir, inode, name); 329 330 /* Should enable inline_data after compression set */ 331 if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode)) 332 set_inode_flag(inode, FI_INLINE_DATA); 333 334 if (name && !test_opt(sbi, DISABLE_EXT_IDENTIFY)) 335 set_file_temperature(sbi, inode, name); 336 337 stat_inc_inline_xattr(inode); 338 stat_inc_inline_inode(inode); 339 stat_inc_inline_dir(inode); 340 341 f2fs_set_inode_flags(inode); 342 343 f2fs_init_extent_tree(inode); 344 345 trace_f2fs_new_inode(inode, 0); 346 return inode; 347 348 fail: 349 trace_f2fs_new_inode(inode, err); 350 make_bad_inode(inode); 351 if (nid_free) 352 set_inode_flag(inode, FI_FREE_NID); 353 iput(inode); 354 return ERR_PTR(err); 355 fail_drop: 356 trace_f2fs_new_inode(inode, err); 357 dquot_drop(inode); 358 inode->i_flags |= S_NOQUOTA; 359 make_bad_inode(inode); 360 if (nid_free) 361 set_inode_flag(inode, FI_FREE_NID); 362 clear_nlink(inode); 363 unlock_new_inode(inode); 364 iput(inode); 365 return ERR_PTR(err); 366 } 367 368 static int f2fs_create(struct mnt_idmap *idmap, struct inode *dir, 369 struct dentry *dentry, umode_t mode, bool excl) 370 { 371 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 372 struct f2fs_lock_context lc; 373 struct inode *inode; 374 nid_t ino = 0; 375 int err; 376 377 if (unlikely(f2fs_cp_error(sbi))) 378 return -EIO; 379 if (!f2fs_is_checkpoint_ready(sbi)) 380 return -ENOSPC; 381 382 err = f2fs_dquot_initialize(dir); 383 if (err) 384 return err; 385 386 inode = f2fs_new_inode(idmap, dir, mode, dentry->d_name.name); 387 if (IS_ERR(inode)) 388 return PTR_ERR(inode); 389 390 inode->i_op = &f2fs_file_inode_operations; 391 inode->i_fop = &f2fs_file_operations; 392 inode->i_mapping->a_ops = &f2fs_dblock_aops; 393 ino = inode->i_ino; 394 395 f2fs_lock_op(sbi, &lc); 396 err = f2fs_add_link(dentry, inode); 397 if (err) 398 goto out; 399 f2fs_unlock_op(sbi, &lc); 400 401 f2fs_alloc_nid_done(sbi, ino); 402 403 d_instantiate_new(dentry, inode); 404 405 if (IS_DIRSYNC(dir)) 406 f2fs_sync_fs(sbi->sb, 1); 407 408 f2fs_balance_fs(sbi, true); 409 return 0; 410 out: 411 f2fs_handle_failed_inode(inode, &lc); 412 return err; 413 } 414 415 static int f2fs_link(struct dentry *old_dentry, struct inode *dir, 416 struct dentry *dentry) 417 { 418 struct inode *inode = d_inode(old_dentry); 419 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 420 struct f2fs_lock_context lc; 421 int err; 422 423 if (unlikely(f2fs_cp_error(sbi))) 424 return -EIO; 425 if (!f2fs_is_checkpoint_ready(sbi)) 426 return -ENOSPC; 427 428 err = fscrypt_prepare_link(old_dentry, dir, dentry); 429 if (err) 430 return err; 431 432 if (is_inode_flag_set(dir, FI_PROJ_INHERIT) && 433 (!projid_eq(F2FS_I(dir)->i_projid, 434 F2FS_I(inode)->i_projid))) 435 return -EXDEV; 436 437 err = f2fs_dquot_initialize(dir); 438 if (err) 439 return err; 440 441 f2fs_balance_fs(sbi, true); 442 443 inode_set_ctime_current(inode); 444 ihold(inode); 445 446 set_inode_flag(inode, FI_INC_LINK); 447 f2fs_lock_op(sbi, &lc); 448 err = f2fs_add_link(dentry, inode); 449 if (err) 450 goto out; 451 f2fs_unlock_op(sbi, &lc); 452 453 d_instantiate(dentry, inode); 454 455 if (IS_DIRSYNC(dir)) 456 f2fs_sync_fs(sbi->sb, 1); 457 return 0; 458 out: 459 clear_inode_flag(inode, FI_INC_LINK); 460 iput(inode); 461 f2fs_unlock_op(sbi, &lc); 462 return err; 463 } 464 465 struct dentry *f2fs_get_parent(struct dentry *child) 466 { 467 struct folio *folio; 468 unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &folio); 469 470 if (!ino) { 471 if (IS_ERR(folio)) 472 return ERR_CAST(folio); 473 return ERR_PTR(-ENOENT); 474 } 475 return d_obtain_alias(f2fs_iget(child->d_sb, ino)); 476 } 477 478 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 479 unsigned int flags) 480 { 481 struct inode *inode = NULL; 482 struct f2fs_dir_entry *de; 483 struct folio *folio; 484 struct dentry *new; 485 nid_t ino = -1; 486 int err = 0; 487 struct f2fs_filename fname; 488 489 trace_f2fs_lookup_start(dir, dentry, flags); 490 491 if (dentry->d_name.len > F2FS_NAME_LEN) { 492 err = -ENAMETOOLONG; 493 goto out; 494 } 495 496 err = f2fs_prepare_lookup(dir, dentry, &fname); 497 if (err == -ENOENT) 498 goto out_splice; 499 if (err) 500 goto out; 501 de = __f2fs_find_entry(dir, &fname, &folio); 502 f2fs_free_filename(&fname); 503 504 if (!de) { 505 if (IS_ERR(folio)) { 506 err = PTR_ERR(folio); 507 goto out; 508 } 509 err = -ENOENT; 510 goto out_splice; 511 } 512 513 ino = le32_to_cpu(de->ino); 514 f2fs_folio_put(folio, false); 515 516 inode = f2fs_iget(dir->i_sb, ino); 517 if (IS_ERR(inode)) { 518 err = PTR_ERR(inode); 519 goto out; 520 } 521 522 if (inode->i_nlink == 0) { 523 f2fs_warn(F2FS_I_SB(inode), "%s: inode (ino=%llx) has zero i_nlink", 524 __func__, inode->i_ino); 525 err = -EFSCORRUPTED; 526 set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); 527 goto out_iput; 528 } 529 530 if (IS_ENCRYPTED(dir) && 531 (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) && 532 !fscrypt_has_permitted_context(dir, inode)) { 533 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %llu/%llu", 534 dir->i_ino, inode->i_ino); 535 err = -EPERM; 536 goto out_iput; 537 } 538 out_splice: 539 if (IS_ENABLED(CONFIG_UNICODE) && !inode && IS_CASEFOLDED(dir)) { 540 /* Eventually we want to call d_add_ci(dentry, NULL) 541 * for negative dentries in the encoding case as 542 * well. For now, prevent the negative dentry 543 * from being cached. 544 */ 545 trace_f2fs_lookup_end(dir, dentry, ino, err); 546 return NULL; 547 } 548 549 new = d_splice_alias(inode, dentry); 550 trace_f2fs_lookup_end(dir, !IS_ERR_OR_NULL(new) ? new : dentry, 551 ino, IS_ERR(new) ? PTR_ERR(new) : err); 552 return new; 553 out_iput: 554 iput(inode); 555 out: 556 trace_f2fs_lookup_end(dir, dentry, ino, err); 557 return ERR_PTR(err); 558 } 559 560 static int f2fs_unlink(struct inode *dir, struct dentry *dentry) 561 { 562 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 563 struct inode *inode = d_inode(dentry); 564 struct f2fs_dir_entry *de; 565 struct f2fs_lock_context lc; 566 struct folio *folio; 567 int err; 568 569 trace_f2fs_unlink_enter(dir, dentry); 570 571 if (unlikely(f2fs_cp_error(sbi))) { 572 err = -EIO; 573 goto out; 574 } 575 576 err = f2fs_dquot_initialize(dir); 577 if (err) 578 goto out; 579 err = f2fs_dquot_initialize(inode); 580 if (err) 581 goto out; 582 583 de = f2fs_find_entry(dir, &dentry->d_name, &folio); 584 if (!de) { 585 if (IS_ERR(folio)) 586 err = PTR_ERR(folio); 587 goto out; 588 } 589 590 if (unlikely(inode->i_nlink == 0)) { 591 f2fs_warn(sbi, "%s: inode (ino=%llx) has zero i_nlink", 592 __func__, inode->i_ino); 593 goto corrupted; 594 } else if (S_ISDIR(inode->i_mode) && unlikely(inode->i_nlink == 1)) { 595 f2fs_warn(sbi, "%s: directory inode (ino=%llx) has a single i_nlink", 596 __func__, inode->i_ino); 597 goto corrupted; 598 } 599 600 f2fs_balance_fs(sbi, true); 601 602 f2fs_lock_op(sbi, &lc); 603 err = f2fs_acquire_orphan_inode(sbi); 604 if (err) { 605 f2fs_unlock_op(sbi, &lc); 606 f2fs_folio_put(folio, false); 607 goto out; 608 } 609 f2fs_delete_entry(de, folio, dir, inode); 610 f2fs_unlock_op(sbi, &lc); 611 612 /* VFS negative dentries are incompatible with Encoding and 613 * Case-insensitiveness. Eventually we'll want avoid 614 * invalidating the dentries here, alongside with returning the 615 * negative dentries at f2fs_lookup(), when it is better 616 * supported by the VFS for the CI case. 617 */ 618 if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) 619 d_invalidate(dentry); 620 621 if (IS_DIRSYNC(dir)) 622 f2fs_sync_fs(sbi->sb, 1); 623 624 goto out; 625 corrupted: 626 err = -EFSCORRUPTED; 627 set_sbi_flag(sbi, SBI_NEED_FSCK); 628 f2fs_folio_put(folio, false); 629 out: 630 trace_f2fs_unlink_exit(inode, err); 631 return err; 632 } 633 634 static const char *f2fs_get_link(struct dentry *dentry, 635 struct inode *inode, 636 struct delayed_call *done) 637 { 638 const char *link = page_get_link(dentry, inode, done); 639 640 if (!IS_ERR(link) && !*link) { 641 /* this is broken symlink case */ 642 do_delayed_call(done); 643 clear_delayed_call(done); 644 link = ERR_PTR(-ENOENT); 645 } 646 return link; 647 } 648 649 static int f2fs_symlink(struct mnt_idmap *idmap, struct inode *dir, 650 struct dentry *dentry, const char *symname) 651 { 652 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 653 struct f2fs_lock_context lc; 654 struct inode *inode; 655 size_t len = strlen(symname); 656 struct fscrypt_str disk_link; 657 int err; 658 659 if (unlikely(f2fs_cp_error(sbi))) 660 return -EIO; 661 if (!f2fs_is_checkpoint_ready(sbi)) 662 return -ENOSPC; 663 664 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, 665 &disk_link); 666 if (err) 667 return err; 668 669 err = f2fs_dquot_initialize(dir); 670 if (err) 671 return err; 672 673 inode = f2fs_new_inode(idmap, dir, S_IFLNK | S_IRWXUGO, NULL); 674 if (IS_ERR(inode)) 675 return PTR_ERR(inode); 676 677 if (IS_ENCRYPTED(inode)) 678 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 679 else 680 inode->i_op = &f2fs_symlink_inode_operations; 681 inode_nohighmem(inode); 682 inode->i_mapping->a_ops = &f2fs_dblock_aops; 683 684 f2fs_lock_op(sbi, &lc); 685 err = f2fs_add_link(dentry, inode); 686 if (err) 687 goto out_f2fs_handle_failed_inode; 688 f2fs_unlock_op(sbi, &lc); 689 f2fs_alloc_nid_done(sbi, inode->i_ino); 690 691 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); 692 if (err) 693 goto err_out; 694 695 err = page_symlink(inode, disk_link.name, disk_link.len); 696 697 err_out: 698 d_instantiate_new(dentry, inode); 699 700 /* 701 * Let's flush symlink data in order to avoid broken symlink as much as 702 * possible. Nevertheless, fsyncing is the best way, but there is no 703 * way to get a file descriptor in order to flush that. 704 * 705 * Note that, it needs to do dir->fsync to make this recoverable. 706 * If the symlink path is stored into inline_data, there is no 707 * performance regression. 708 */ 709 if (!err) { 710 filemap_write_and_wait_range(inode->i_mapping, 0, 711 disk_link.len - 1); 712 713 if (IS_DIRSYNC(dir)) 714 f2fs_sync_fs(sbi->sb, 1); 715 } else { 716 f2fs_unlink(dir, dentry); 717 } 718 719 f2fs_balance_fs(sbi, true); 720 goto out_free_encrypted_link; 721 722 out_f2fs_handle_failed_inode: 723 f2fs_handle_failed_inode(inode, &lc); 724 out_free_encrypted_link: 725 if (disk_link.name != (unsigned char *)symname) 726 kfree(disk_link.name); 727 return err; 728 } 729 730 static struct dentry *f2fs_mkdir(struct mnt_idmap *idmap, struct inode *dir, 731 struct dentry *dentry, umode_t mode) 732 { 733 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 734 struct f2fs_lock_context lc; 735 struct inode *inode; 736 int err; 737 738 if (unlikely(f2fs_cp_error(sbi))) 739 return ERR_PTR(-EIO); 740 741 err = f2fs_dquot_initialize(dir); 742 if (err) 743 return ERR_PTR(err); 744 745 inode = f2fs_new_inode(idmap, dir, S_IFDIR | mode, NULL); 746 if (IS_ERR(inode)) 747 return ERR_CAST(inode); 748 749 inode->i_op = &f2fs_dir_inode_operations; 750 inode->i_fop = &f2fs_dir_operations; 751 inode->i_mapping->a_ops = &f2fs_dblock_aops; 752 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 753 754 set_inode_flag(inode, FI_INC_LINK); 755 f2fs_lock_op(sbi, &lc); 756 err = f2fs_add_link(dentry, inode); 757 if (err) 758 goto out_fail; 759 f2fs_unlock_op(sbi, &lc); 760 761 f2fs_alloc_nid_done(sbi, inode->i_ino); 762 763 d_instantiate_new(dentry, inode); 764 765 if (IS_DIRSYNC(dir)) 766 f2fs_sync_fs(sbi->sb, 1); 767 768 f2fs_balance_fs(sbi, true); 769 return NULL; 770 771 out_fail: 772 clear_inode_flag(inode, FI_INC_LINK); 773 f2fs_handle_failed_inode(inode, &lc); 774 return ERR_PTR(err); 775 } 776 777 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) 778 { 779 struct inode *inode = d_inode(dentry); 780 781 if (f2fs_empty_dir(inode)) 782 return f2fs_unlink(dir, dentry); 783 return -ENOTEMPTY; 784 } 785 786 static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir, 787 struct dentry *dentry, umode_t mode, dev_t rdev) 788 { 789 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 790 struct f2fs_lock_context lc; 791 struct inode *inode; 792 int err = 0; 793 794 if (unlikely(f2fs_cp_error(sbi))) 795 return -EIO; 796 if (!f2fs_is_checkpoint_ready(sbi)) 797 return -ENOSPC; 798 799 err = f2fs_dquot_initialize(dir); 800 if (err) 801 return err; 802 803 inode = f2fs_new_inode(idmap, dir, mode, NULL); 804 if (IS_ERR(inode)) 805 return PTR_ERR(inode); 806 807 init_special_inode(inode, inode->i_mode, rdev); 808 inode->i_op = &f2fs_special_inode_operations; 809 810 f2fs_lock_op(sbi, &lc); 811 err = f2fs_add_link(dentry, inode); 812 if (err) 813 goto out; 814 f2fs_unlock_op(sbi, &lc); 815 816 f2fs_alloc_nid_done(sbi, inode->i_ino); 817 818 d_instantiate_new(dentry, inode); 819 820 if (IS_DIRSYNC(dir)) 821 f2fs_sync_fs(sbi->sb, 1); 822 823 f2fs_balance_fs(sbi, true); 824 return 0; 825 out: 826 f2fs_handle_failed_inode(inode, &lc); 827 return err; 828 } 829 830 static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 831 struct file *file, umode_t mode, bool is_whiteout, 832 struct inode **new_inode, struct f2fs_filename *fname) 833 { 834 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 835 struct f2fs_lock_context lc; 836 struct inode *inode; 837 int err; 838 839 err = f2fs_dquot_initialize(dir); 840 if (err) 841 return err; 842 843 inode = f2fs_new_inode(idmap, dir, mode, NULL); 844 if (IS_ERR(inode)) 845 return PTR_ERR(inode); 846 847 if (is_whiteout) { 848 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV); 849 inode->i_op = &f2fs_special_inode_operations; 850 } else { 851 inode->i_op = &f2fs_file_inode_operations; 852 inode->i_fop = &f2fs_file_operations; 853 inode->i_mapping->a_ops = &f2fs_dblock_aops; 854 } 855 856 f2fs_lock_op(sbi, &lc); 857 err = f2fs_acquire_orphan_inode(sbi); 858 if (err) 859 goto out; 860 861 err = f2fs_do_tmpfile(inode, dir, fname); 862 if (err) 863 goto release_out; 864 865 /* 866 * add this non-linked tmpfile to orphan list, in this way we could 867 * remove all unused data of tmpfile after abnormal power-off. 868 */ 869 f2fs_add_orphan_inode(inode); 870 f2fs_alloc_nid_done(sbi, inode->i_ino); 871 872 if (is_whiteout) { 873 f2fs_i_links_write(inode, false); 874 875 spin_lock(&inode->i_lock); 876 inode_state_set(inode, I_LINKABLE); 877 spin_unlock(&inode->i_lock); 878 } else { 879 if (file) 880 d_tmpfile(file, inode); 881 else 882 f2fs_i_links_write(inode, false); 883 } 884 /* link_count was changed by d_tmpfile as well. */ 885 f2fs_unlock_op(sbi, &lc); 886 unlock_new_inode(inode); 887 888 if (new_inode) 889 *new_inode = inode; 890 891 f2fs_balance_fs(sbi, true); 892 return 0; 893 894 release_out: 895 f2fs_release_orphan_inode(sbi); 896 out: 897 f2fs_handle_failed_inode(inode, &lc); 898 return err; 899 } 900 901 static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 902 struct file *file, umode_t mode) 903 { 904 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 905 int err; 906 907 if (unlikely(f2fs_cp_error(sbi))) 908 return -EIO; 909 if (!f2fs_is_checkpoint_ready(sbi)) 910 return -ENOSPC; 911 912 err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL, NULL); 913 914 return finish_open_simple(file, err); 915 } 916 917 static int f2fs_create_whiteout(struct mnt_idmap *idmap, 918 struct inode *dir, struct inode **whiteout, 919 struct f2fs_filename *fname) 920 { 921 return __f2fs_tmpfile(idmap, dir, NULL, S_IFCHR | WHITEOUT_MODE, 922 true, whiteout, fname); 923 } 924 925 int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 926 struct inode **new_inode) 927 { 928 return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG, 929 false, new_inode, NULL); 930 } 931 932 static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir, 933 struct dentry *old_dentry, struct inode *new_dir, 934 struct dentry *new_dentry, unsigned int flags) 935 { 936 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 937 struct inode *old_inode = d_inode(old_dentry); 938 struct inode *new_inode = d_inode(new_dentry); 939 struct inode *whiteout = NULL; 940 struct folio *old_dir_folio = NULL; 941 struct folio *old_folio, *new_folio = NULL; 942 struct f2fs_dir_entry *old_dir_entry = NULL; 943 struct f2fs_dir_entry *old_entry; 944 struct f2fs_dir_entry *new_entry; 945 struct f2fs_lock_context lc; 946 bool old_is_dir = S_ISDIR(old_inode->i_mode); 947 int err; 948 949 if (unlikely(f2fs_cp_error(sbi))) 950 return -EIO; 951 if (!f2fs_is_checkpoint_ready(sbi)) 952 return -ENOSPC; 953 954 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 955 (!projid_eq(F2FS_I(new_dir)->i_projid, 956 F2FS_I(old_inode)->i_projid))) 957 return -EXDEV; 958 959 /* 960 * If new_inode is null, the below renaming flow will 961 * add a link in old_dir which can convert inline_dir. 962 * After then, if we failed to get the entry due to other 963 * reasons like ENOMEM, we had to remove the new entry. 964 * Instead of adding such the error handling routine, let's 965 * simply convert first here. 966 */ 967 if (old_dir == new_dir && !new_inode) { 968 err = f2fs_try_convert_inline_dir(old_dir, new_dentry); 969 if (err) 970 return err; 971 } 972 973 if (flags & RENAME_WHITEOUT) { 974 struct f2fs_filename fname; 975 976 err = f2fs_setup_filename(old_dir, &old_dentry->d_name, 977 0, &fname); 978 if (err) 979 return err; 980 981 err = f2fs_create_whiteout(idmap, old_dir, &whiteout, &fname); 982 f2fs_free_filename(&fname); 983 if (err) 984 return err; 985 } 986 987 err = f2fs_dquot_initialize(old_dir); 988 if (err) 989 goto out; 990 991 err = f2fs_dquot_initialize(new_dir); 992 if (err) 993 goto out; 994 995 if (new_inode) { 996 err = f2fs_dquot_initialize(new_inode); 997 if (err) 998 goto out; 999 } 1000 1001 err = -ENOENT; 1002 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_folio); 1003 if (!old_entry) { 1004 if (IS_ERR(old_folio)) 1005 err = PTR_ERR(old_folio); 1006 goto out; 1007 } 1008 1009 if (old_is_dir && old_dir != new_dir) { 1010 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_folio); 1011 if (!old_dir_entry) { 1012 if (IS_ERR(old_dir_folio)) 1013 err = PTR_ERR(old_dir_folio); 1014 goto out_old; 1015 } 1016 } 1017 1018 if (new_inode) { 1019 1020 err = -ENOTEMPTY; 1021 if (old_is_dir && !f2fs_empty_dir(new_inode)) 1022 goto out_dir; 1023 1024 err = -ENOENT; 1025 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, 1026 &new_folio); 1027 if (!new_entry) { 1028 if (IS_ERR(new_folio)) 1029 err = PTR_ERR(new_folio); 1030 goto out_dir; 1031 } 1032 1033 f2fs_balance_fs(sbi, true); 1034 1035 f2fs_lock_op(sbi, &lc); 1036 1037 err = f2fs_acquire_orphan_inode(sbi); 1038 if (err) 1039 goto put_out_dir; 1040 1041 f2fs_set_link(new_dir, new_entry, new_folio, old_inode); 1042 new_folio = NULL; 1043 1044 inode_set_ctime_current(new_inode); 1045 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1046 if (old_is_dir) 1047 f2fs_i_links_write(new_inode, false); 1048 f2fs_i_links_write(new_inode, false); 1049 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1050 1051 if (!new_inode->i_nlink) 1052 f2fs_add_orphan_inode(new_inode); 1053 else 1054 f2fs_release_orphan_inode(sbi); 1055 } else { 1056 f2fs_balance_fs(sbi, true); 1057 1058 f2fs_lock_op(sbi, &lc); 1059 1060 err = f2fs_add_link(new_dentry, old_inode); 1061 if (err) { 1062 f2fs_unlock_op(sbi, &lc); 1063 goto out_dir; 1064 } 1065 1066 if (old_is_dir) 1067 f2fs_i_links_write(new_dir, true); 1068 } 1069 1070 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1071 if (!old_is_dir || whiteout) 1072 file_lost_pino(old_inode); 1073 else 1074 /* adjust dir's i_pino to pass fsck check */ 1075 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1076 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1077 1078 inode_set_ctime_current(old_inode); 1079 f2fs_mark_inode_dirty_sync(old_inode, false); 1080 1081 f2fs_delete_entry(old_entry, old_folio, old_dir, NULL); 1082 old_folio = NULL; 1083 1084 if (whiteout) { 1085 set_inode_flag(whiteout, FI_INC_LINK); 1086 err = f2fs_add_link(old_dentry, whiteout); 1087 if (err) { 1088 d_invalidate(old_dentry); 1089 d_invalidate(new_dentry); 1090 goto put_out_dir; 1091 } 1092 spin_lock(&whiteout->i_lock); 1093 inode_state_clear(whiteout, I_LINKABLE); 1094 spin_unlock(&whiteout->i_lock); 1095 1096 iput(whiteout); 1097 } 1098 1099 if (old_dir_entry) 1100 f2fs_set_link(old_inode, old_dir_entry, old_dir_folio, new_dir); 1101 if (old_is_dir) 1102 f2fs_i_links_write(old_dir, false); 1103 1104 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1105 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1106 if (S_ISDIR(old_inode->i_mode)) 1107 f2fs_add_ino_entry(sbi, old_inode->i_ino, 1108 TRANS_DIR_INO); 1109 } 1110 1111 f2fs_unlock_op(sbi, &lc); 1112 1113 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1114 f2fs_sync_fs(sbi->sb, 1); 1115 1116 f2fs_update_time(sbi, REQ_TIME); 1117 return 0; 1118 1119 put_out_dir: 1120 f2fs_unlock_op(sbi, &lc); 1121 f2fs_folio_put(new_folio, false); 1122 out_dir: 1123 if (old_dir_entry) 1124 f2fs_folio_put(old_dir_folio, false); 1125 out_old: 1126 f2fs_folio_put(old_folio, false); 1127 out: 1128 iput(whiteout); 1129 return err; 1130 } 1131 1132 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, 1133 struct inode *new_dir, struct dentry *new_dentry) 1134 { 1135 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 1136 struct inode *old_inode = d_inode(old_dentry); 1137 struct inode *new_inode = d_inode(new_dentry); 1138 struct folio *old_dir_folio, *new_dir_folio; 1139 struct folio *old_folio, *new_folio; 1140 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; 1141 struct f2fs_dir_entry *old_entry, *new_entry; 1142 struct f2fs_lock_context lc; 1143 int old_nlink = 0, new_nlink = 0; 1144 int err; 1145 1146 if (unlikely(f2fs_cp_error(sbi))) 1147 return -EIO; 1148 if (!f2fs_is_checkpoint_ready(sbi)) 1149 return -ENOSPC; 1150 1151 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1152 !projid_eq(F2FS_I(new_dir)->i_projid, 1153 F2FS_I(old_inode)->i_projid)) || 1154 (is_inode_flag_set(old_dir, FI_PROJ_INHERIT) && 1155 !projid_eq(F2FS_I(old_dir)->i_projid, 1156 F2FS_I(new_inode)->i_projid))) 1157 return -EXDEV; 1158 1159 err = f2fs_dquot_initialize(old_dir); 1160 if (err) 1161 goto out; 1162 1163 err = f2fs_dquot_initialize(new_dir); 1164 if (err) 1165 goto out; 1166 1167 err = -ENOENT; 1168 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_folio); 1169 if (!old_entry) { 1170 if (IS_ERR(old_folio)) 1171 err = PTR_ERR(old_folio); 1172 goto out; 1173 } 1174 1175 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_folio); 1176 if (!new_entry) { 1177 if (IS_ERR(new_folio)) 1178 err = PTR_ERR(new_folio); 1179 goto out_old; 1180 } 1181 1182 /* prepare for updating ".." directory entry info later */ 1183 if (old_dir != new_dir) { 1184 if (S_ISDIR(old_inode->i_mode)) { 1185 old_dir_entry = f2fs_parent_dir(old_inode, 1186 &old_dir_folio); 1187 if (!old_dir_entry) { 1188 if (IS_ERR(old_dir_folio)) 1189 err = PTR_ERR(old_dir_folio); 1190 goto out_new; 1191 } 1192 } 1193 1194 if (S_ISDIR(new_inode->i_mode)) { 1195 new_dir_entry = f2fs_parent_dir(new_inode, 1196 &new_dir_folio); 1197 if (!new_dir_entry) { 1198 if (IS_ERR(new_dir_folio)) 1199 err = PTR_ERR(new_dir_folio); 1200 goto out_old_dir; 1201 } 1202 } 1203 } 1204 1205 /* 1206 * If cross rename between file and directory those are not 1207 * in the same directory, we will inc nlink of file's parent 1208 * later, so we should check upper boundary of its nlink. 1209 */ 1210 if ((!old_dir_entry || !new_dir_entry) && 1211 old_dir_entry != new_dir_entry) { 1212 old_nlink = old_dir_entry ? -1 : 1; 1213 new_nlink = -old_nlink; 1214 err = -EMLINK; 1215 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) || 1216 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX)) 1217 goto out_new_dir; 1218 } 1219 1220 f2fs_balance_fs(sbi, true); 1221 1222 f2fs_lock_op(sbi, &lc); 1223 1224 /* update ".." directory entry info of old dentry */ 1225 if (old_dir_entry) 1226 f2fs_set_link(old_inode, old_dir_entry, old_dir_folio, new_dir); 1227 1228 /* update ".." directory entry info of new dentry */ 1229 if (new_dir_entry) 1230 f2fs_set_link(new_inode, new_dir_entry, new_dir_folio, old_dir); 1231 1232 /* update directory entry info of old dir inode */ 1233 f2fs_set_link(old_dir, old_entry, old_folio, new_inode); 1234 1235 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1236 if (!old_dir_entry) 1237 file_lost_pino(old_inode); 1238 else 1239 /* adjust dir's i_pino to pass fsck check */ 1240 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1241 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1242 1243 inode_set_ctime_current(old_dir); 1244 if (old_nlink) { 1245 f2fs_down_write(&F2FS_I(old_dir)->i_sem); 1246 f2fs_i_links_write(old_dir, old_nlink > 0); 1247 f2fs_up_write(&F2FS_I(old_dir)->i_sem); 1248 } 1249 f2fs_mark_inode_dirty_sync(old_dir, false); 1250 1251 /* update directory entry info of new dir inode */ 1252 f2fs_set_link(new_dir, new_entry, new_folio, old_inode); 1253 1254 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1255 if (!new_dir_entry) 1256 file_lost_pino(new_inode); 1257 else 1258 /* adjust dir's i_pino to pass fsck check */ 1259 f2fs_i_pino_write(new_inode, old_dir->i_ino); 1260 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1261 1262 inode_set_ctime_current(new_dir); 1263 if (new_nlink) { 1264 f2fs_down_write(&F2FS_I(new_dir)->i_sem); 1265 f2fs_i_links_write(new_dir, new_nlink > 0); 1266 f2fs_up_write(&F2FS_I(new_dir)->i_sem); 1267 } 1268 f2fs_mark_inode_dirty_sync(new_dir, false); 1269 1270 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1271 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO); 1272 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1273 } 1274 1275 f2fs_unlock_op(sbi, &lc); 1276 1277 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1278 f2fs_sync_fs(sbi->sb, 1); 1279 1280 f2fs_update_time(sbi, REQ_TIME); 1281 return 0; 1282 out_new_dir: 1283 if (new_dir_entry) { 1284 f2fs_folio_put(new_dir_folio, false); 1285 } 1286 out_old_dir: 1287 if (old_dir_entry) { 1288 f2fs_folio_put(old_dir_folio, false); 1289 } 1290 out_new: 1291 f2fs_folio_put(new_folio, false); 1292 out_old: 1293 f2fs_folio_put(old_folio, false); 1294 out: 1295 return err; 1296 } 1297 1298 static int f2fs_rename2(struct mnt_idmap *idmap, 1299 struct inode *old_dir, struct dentry *old_dentry, 1300 struct inode *new_dir, struct dentry *new_dentry, 1301 unsigned int flags) 1302 { 1303 int err; 1304 1305 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) 1306 return -EINVAL; 1307 1308 trace_f2fs_rename_start(old_dir, old_dentry, new_dir, new_dentry, 1309 flags); 1310 1311 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry, 1312 flags); 1313 if (err) 1314 return err; 1315 1316 if (flags & RENAME_EXCHANGE) 1317 err = f2fs_cross_rename(old_dir, old_dentry, 1318 new_dir, new_dentry); 1319 else 1320 /* 1321 * VFS has already handled the new dentry existence case, 1322 * here, we just deal with "RENAME_NOREPLACE" as regular rename. 1323 */ 1324 err = f2fs_rename(idmap, old_dir, old_dentry, 1325 new_dir, new_dentry, flags); 1326 1327 trace_f2fs_rename_end(old_dentry, new_dentry, flags, err); 1328 return err; 1329 } 1330 1331 static const char *f2fs_encrypted_get_link(struct dentry *dentry, 1332 struct inode *inode, 1333 struct delayed_call *done) 1334 { 1335 struct folio *folio; 1336 const char *target; 1337 1338 if (!dentry) 1339 return ERR_PTR(-ECHILD); 1340 1341 folio = read_mapping_folio(inode->i_mapping, 0, NULL); 1342 if (IS_ERR(folio)) 1343 return ERR_CAST(folio); 1344 1345 target = fscrypt_get_symlink(inode, folio_address(folio), 1346 inode->i_sb->s_blocksize, done); 1347 folio_put(folio); 1348 return target; 1349 } 1350 1351 static int f2fs_encrypted_symlink_getattr(struct mnt_idmap *idmap, 1352 const struct path *path, 1353 struct kstat *stat, u32 request_mask, 1354 unsigned int query_flags) 1355 { 1356 f2fs_getattr(idmap, path, stat, request_mask, query_flags); 1357 1358 return fscrypt_symlink_getattr(path, stat); 1359 } 1360 1361 const struct inode_operations f2fs_encrypted_symlink_inode_operations = { 1362 .get_link = f2fs_encrypted_get_link, 1363 .getattr = f2fs_encrypted_symlink_getattr, 1364 .setattr = f2fs_setattr, 1365 .listxattr = f2fs_listxattr, 1366 }; 1367 1368 const struct inode_operations f2fs_dir_inode_operations = { 1369 .create = f2fs_create, 1370 .lookup = f2fs_lookup, 1371 .link = f2fs_link, 1372 .unlink = f2fs_unlink, 1373 .symlink = f2fs_symlink, 1374 .mkdir = f2fs_mkdir, 1375 .rmdir = f2fs_rmdir, 1376 .mknod = f2fs_mknod, 1377 .rename = f2fs_rename2, 1378 .tmpfile = f2fs_tmpfile, 1379 .getattr = f2fs_getattr, 1380 .setattr = f2fs_setattr, 1381 .get_inode_acl = f2fs_get_acl, 1382 .set_acl = f2fs_set_acl, 1383 .listxattr = f2fs_listxattr, 1384 .fiemap = f2fs_fiemap, 1385 .fileattr_get = f2fs_fileattr_get, 1386 .fileattr_set = f2fs_fileattr_set, 1387 }; 1388 1389 const struct inode_operations f2fs_symlink_inode_operations = { 1390 .get_link = f2fs_get_link, 1391 .getattr = f2fs_getattr, 1392 .setattr = f2fs_setattr, 1393 .listxattr = f2fs_listxattr, 1394 }; 1395 1396 const struct inode_operations f2fs_special_inode_operations = { 1397 .getattr = f2fs_getattr, 1398 .setattr = f2fs_setattr, 1399 .get_inode_acl = f2fs_get_acl, 1400 .set_acl = f2fs_set_acl, 1401 .listxattr = f2fs_listxattr, 1402 }; 1403