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 } else { 87 if (!hot && !cold_count) 88 return -EINVAL; 89 if (hot && !hot_count) 90 return -EINVAL; 91 } 92 93 if (hot) { 94 start = cold_count; 95 count = total_count; 96 } else { 97 start = 0; 98 count = cold_count; 99 } 100 101 for (i = start; i < count; i++) { 102 if (strcmp(name, extlist[i])) 103 continue; 104 105 if (set) 106 return -EINVAL; 107 108 memcpy(extlist[i], extlist[i + 1], 109 F2FS_EXTENSION_LEN * (total_count - i - 1)); 110 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN); 111 if (hot) 112 sbi->raw_super->hot_ext_count = hot_count - 1; 113 else 114 sbi->raw_super->extension_count = 115 cpu_to_le32(cold_count - 1); 116 return 0; 117 } 118 119 if (!set) 120 return -EINVAL; 121 122 if (hot) { 123 memcpy(extlist[count], name, strlen(name)); 124 sbi->raw_super->hot_ext_count = hot_count + 1; 125 } else { 126 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN]; 127 128 memcpy(buf, &extlist[cold_count], 129 F2FS_EXTENSION_LEN * hot_count); 130 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN); 131 memcpy(extlist[cold_count], name, strlen(name)); 132 memcpy(&extlist[cold_count + 1], buf, 133 F2FS_EXTENSION_LEN * hot_count); 134 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1); 135 } 136 return 0; 137 } 138 139 static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir, 140 struct inode *inode, const unsigned char *name) 141 { 142 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 143 unsigned char (*noext)[F2FS_EXTENSION_LEN] = 144 F2FS_OPTION(sbi).noextensions; 145 unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions; 146 unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; 147 unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; 148 int i, cold_count, hot_count; 149 150 if (!f2fs_sb_has_compression(sbi)) 151 return; 152 153 if (S_ISDIR(inode->i_mode)) 154 goto inherit_comp; 155 156 /* This name comes only from normal files. */ 157 if (!name) 158 return; 159 160 /* Don't compress hot files. */ 161 f2fs_down_read(&sbi->sb_lock); 162 cold_count = le32_to_cpu(sbi->raw_super->extension_count); 163 hot_count = sbi->raw_super->hot_ext_count; 164 for (i = cold_count; i < cold_count + hot_count; i++) 165 if (is_temperature_extension(name, extlist[i])) 166 break; 167 f2fs_up_read(&sbi->sb_lock); 168 if (i < (cold_count + hot_count)) 169 return; 170 171 /* Don't compress unallowed extension. */ 172 for (i = 0; i < noext_cnt; i++) 173 if (is_compress_extension(name, noext[i])) 174 return; 175 176 /* Compress wanting extension. */ 177 for (i = 0; i < ext_cnt; i++) { 178 if (is_compress_extension(name, ext[i])) { 179 set_compress_context(inode); 180 return; 181 } 182 } 183 inherit_comp: 184 /* Inherit the {no-}compression flag in directory */ 185 if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) { 186 F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL; 187 f2fs_mark_inode_dirty_sync(inode, true); 188 } else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) { 189 set_compress_context(inode); 190 } 191 } 192 193 /* 194 * Set file's temperature for hot/cold data separation 195 */ 196 static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode, 197 const unsigned char *name) 198 { 199 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 200 int i, cold_count, hot_count; 201 202 f2fs_down_read(&sbi->sb_lock); 203 cold_count = le32_to_cpu(sbi->raw_super->extension_count); 204 hot_count = sbi->raw_super->hot_ext_count; 205 for (i = 0; i < cold_count + hot_count; i++) 206 if (is_temperature_extension(name, extlist[i])) 207 break; 208 f2fs_up_read(&sbi->sb_lock); 209 210 if (i == cold_count + hot_count) 211 return; 212 213 if (i < cold_count) 214 file_set_cold(inode); 215 else 216 file_set_hot(inode); 217 } 218 219 static struct inode *f2fs_new_inode(struct mnt_idmap *idmap, 220 struct inode *dir, umode_t mode, 221 const char *name) 222 { 223 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 224 struct f2fs_inode_info *fi; 225 nid_t ino; 226 struct inode *inode; 227 bool nid_free = false; 228 bool encrypt = false; 229 int xattr_size = 0; 230 int err; 231 232 inode = new_inode(dir->i_sb); 233 if (!inode) 234 return ERR_PTR(-ENOMEM); 235 236 if (!f2fs_alloc_nid(sbi, &ino)) { 237 err = -ENOSPC; 238 goto fail; 239 } 240 241 nid_free = true; 242 243 inode_init_owner(idmap, inode, dir, mode); 244 245 fi = F2FS_I(inode); 246 inode->i_ino = ino; 247 inode->i_blocks = 0; 248 simple_inode_init_ts(inode); 249 fi->i_crtime = inode_get_mtime(inode); 250 inode->i_generation = get_random_u32(); 251 252 if (S_ISDIR(inode->i_mode)) 253 fi->i_current_depth = 1; 254 255 err = insert_inode_locked(inode); 256 if (err) { 257 err = -EINVAL; 258 goto fail; 259 } 260 261 if (f2fs_sb_has_project_quota(sbi) && 262 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL)) 263 fi->i_projid = F2FS_I(dir)->i_projid; 264 else 265 fi->i_projid = make_kprojid(&init_user_ns, 266 F2FS_DEF_PROJID); 267 268 err = fscrypt_prepare_new_inode(dir, inode, &encrypt); 269 if (err) 270 goto fail_drop; 271 272 err = f2fs_dquot_initialize(inode); 273 if (err) 274 goto fail_drop; 275 276 set_inode_flag(inode, FI_NEW_INODE); 277 278 if (encrypt) 279 f2fs_set_encrypted_inode(inode); 280 281 if (f2fs_sb_has_extra_attr(sbi)) { 282 set_inode_flag(inode, FI_EXTRA_ATTR); 283 fi->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE; 284 } 285 286 if (test_opt(sbi, INLINE_XATTR)) 287 set_inode_flag(inode, FI_INLINE_XATTR); 288 289 if (f2fs_may_inline_dentry(inode)) 290 set_inode_flag(inode, FI_INLINE_DENTRY); 291 292 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 293 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode)); 294 if (f2fs_has_inline_xattr(inode)) 295 xattr_size = F2FS_OPTION(sbi).inline_xattr_size; 296 /* Otherwise, will be 0 */ 297 } else if (f2fs_has_inline_xattr(inode) || 298 f2fs_has_inline_dentry(inode)) { 299 xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 300 } 301 fi->i_inline_xattr_size = xattr_size; 302 303 fi->i_flags = 304 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED); 305 306 if (S_ISDIR(inode->i_mode)) 307 fi->i_flags |= F2FS_INDEX_FL; 308 309 if (fi->i_flags & F2FS_PROJINHERIT_FL) 310 set_inode_flag(inode, FI_PROJ_INHERIT); 311 312 /* Check compression first. */ 313 set_compress_new_inode(sbi, dir, inode, name); 314 315 /* Should enable inline_data after compression set */ 316 if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode)) 317 set_inode_flag(inode, FI_INLINE_DATA); 318 319 if (name && !test_opt(sbi, DISABLE_EXT_IDENTIFY)) 320 set_file_temperature(sbi, inode, name); 321 322 stat_inc_inline_xattr(inode); 323 stat_inc_inline_inode(inode); 324 stat_inc_inline_dir(inode); 325 326 f2fs_set_inode_flags(inode); 327 328 f2fs_init_extent_tree(inode); 329 330 trace_f2fs_new_inode(inode, 0); 331 return inode; 332 333 fail: 334 trace_f2fs_new_inode(inode, err); 335 make_bad_inode(inode); 336 if (nid_free) 337 set_inode_flag(inode, FI_FREE_NID); 338 iput(inode); 339 return ERR_PTR(err); 340 fail_drop: 341 trace_f2fs_new_inode(inode, err); 342 dquot_drop(inode); 343 inode->i_flags |= S_NOQUOTA; 344 if (nid_free) 345 set_inode_flag(inode, FI_FREE_NID); 346 clear_nlink(inode); 347 unlock_new_inode(inode); 348 iput(inode); 349 return ERR_PTR(err); 350 } 351 352 static int f2fs_create(struct mnt_idmap *idmap, struct inode *dir, 353 struct dentry *dentry, umode_t mode, bool excl) 354 { 355 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 356 struct inode *inode; 357 nid_t ino = 0; 358 int err; 359 360 if (unlikely(f2fs_cp_error(sbi))) 361 return -EIO; 362 if (!f2fs_is_checkpoint_ready(sbi)) 363 return -ENOSPC; 364 365 err = f2fs_dquot_initialize(dir); 366 if (err) 367 return err; 368 369 inode = f2fs_new_inode(idmap, dir, mode, dentry->d_name.name); 370 if (IS_ERR(inode)) 371 return PTR_ERR(inode); 372 373 inode->i_op = &f2fs_file_inode_operations; 374 inode->i_fop = &f2fs_file_operations; 375 inode->i_mapping->a_ops = &f2fs_dblock_aops; 376 ino = inode->i_ino; 377 378 f2fs_lock_op(sbi); 379 err = f2fs_add_link(dentry, inode); 380 if (err) 381 goto out; 382 f2fs_unlock_op(sbi); 383 384 f2fs_alloc_nid_done(sbi, ino); 385 386 d_instantiate_new(dentry, inode); 387 388 if (IS_DIRSYNC(dir)) 389 f2fs_sync_fs(sbi->sb, 1); 390 391 f2fs_balance_fs(sbi, true); 392 return 0; 393 out: 394 f2fs_handle_failed_inode(inode); 395 return err; 396 } 397 398 static int f2fs_link(struct dentry *old_dentry, struct inode *dir, 399 struct dentry *dentry) 400 { 401 struct inode *inode = d_inode(old_dentry); 402 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 403 int err; 404 405 if (unlikely(f2fs_cp_error(sbi))) 406 return -EIO; 407 if (!f2fs_is_checkpoint_ready(sbi)) 408 return -ENOSPC; 409 410 err = fscrypt_prepare_link(old_dentry, dir, dentry); 411 if (err) 412 return err; 413 414 if (is_inode_flag_set(dir, FI_PROJ_INHERIT) && 415 (!projid_eq(F2FS_I(dir)->i_projid, 416 F2FS_I(old_dentry->d_inode)->i_projid))) 417 return -EXDEV; 418 419 err = f2fs_dquot_initialize(dir); 420 if (err) 421 return err; 422 423 f2fs_balance_fs(sbi, true); 424 425 inode_set_ctime_current(inode); 426 ihold(inode); 427 428 set_inode_flag(inode, FI_INC_LINK); 429 f2fs_lock_op(sbi); 430 err = f2fs_add_link(dentry, inode); 431 if (err) 432 goto out; 433 f2fs_unlock_op(sbi); 434 435 d_instantiate(dentry, inode); 436 437 if (IS_DIRSYNC(dir)) 438 f2fs_sync_fs(sbi->sb, 1); 439 return 0; 440 out: 441 clear_inode_flag(inode, FI_INC_LINK); 442 iput(inode); 443 f2fs_unlock_op(sbi); 444 return err; 445 } 446 447 struct dentry *f2fs_get_parent(struct dentry *child) 448 { 449 struct page *page; 450 unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page); 451 452 if (!ino) { 453 if (IS_ERR(page)) 454 return ERR_CAST(page); 455 return ERR_PTR(-ENOENT); 456 } 457 return d_obtain_alias(f2fs_iget(child->d_sb, ino)); 458 } 459 460 static int __recover_dot_dentries(struct inode *dir, nid_t pino) 461 { 462 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 463 struct qstr dot = QSTR_INIT(".", 1); 464 struct f2fs_dir_entry *de; 465 struct page *page; 466 int err = 0; 467 468 if (f2fs_readonly(sbi->sb)) { 469 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint", 470 dir->i_ino, pino); 471 return 0; 472 } 473 474 if (!S_ISDIR(dir->i_mode)) { 475 f2fs_err(sbi, "inconsistent inode status, skip recovering inline_dots inode (ino:%lu, i_mode:%u, pino:%u)", 476 dir->i_ino, dir->i_mode, pino); 477 set_sbi_flag(sbi, SBI_NEED_FSCK); 478 return -ENOTDIR; 479 } 480 481 err = f2fs_dquot_initialize(dir); 482 if (err) 483 return err; 484 485 f2fs_balance_fs(sbi, true); 486 487 f2fs_lock_op(sbi); 488 489 de = f2fs_find_entry(dir, &dot, &page); 490 if (de) { 491 f2fs_put_page(page, 0); 492 } else if (IS_ERR(page)) { 493 err = PTR_ERR(page); 494 goto out; 495 } else { 496 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR); 497 if (err) 498 goto out; 499 } 500 501 de = f2fs_find_entry(dir, &dotdot_name, &page); 502 if (de) 503 f2fs_put_page(page, 0); 504 else if (IS_ERR(page)) 505 err = PTR_ERR(page); 506 else 507 err = f2fs_do_add_link(dir, &dotdot_name, NULL, pino, S_IFDIR); 508 out: 509 if (!err) 510 clear_inode_flag(dir, FI_INLINE_DOTS); 511 512 f2fs_unlock_op(sbi); 513 return err; 514 } 515 516 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 517 unsigned int flags) 518 { 519 struct inode *inode = NULL; 520 struct f2fs_dir_entry *de; 521 struct page *page; 522 struct dentry *new; 523 nid_t ino = -1; 524 int err = 0; 525 unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir)); 526 struct f2fs_filename fname; 527 528 trace_f2fs_lookup_start(dir, dentry, flags); 529 530 if (dentry->d_name.len > F2FS_NAME_LEN) { 531 err = -ENAMETOOLONG; 532 goto out; 533 } 534 535 err = f2fs_prepare_lookup(dir, dentry, &fname); 536 if (err == -ENOENT) 537 goto out_splice; 538 if (err) 539 goto out; 540 de = __f2fs_find_entry(dir, &fname, &page); 541 f2fs_free_filename(&fname); 542 543 if (!de) { 544 if (IS_ERR(page)) { 545 err = PTR_ERR(page); 546 goto out; 547 } 548 err = -ENOENT; 549 goto out_splice; 550 } 551 552 ino = le32_to_cpu(de->ino); 553 f2fs_put_page(page, 0); 554 555 inode = f2fs_iget(dir->i_sb, ino); 556 if (IS_ERR(inode)) { 557 err = PTR_ERR(inode); 558 goto out; 559 } 560 561 if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) { 562 err = __recover_dot_dentries(dir, root_ino); 563 if (err) 564 goto out_iput; 565 } 566 567 if (f2fs_has_inline_dots(inode)) { 568 err = __recover_dot_dentries(inode, dir->i_ino); 569 if (err) 570 goto out_iput; 571 } 572 if (IS_ENCRYPTED(dir) && 573 (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) && 574 !fscrypt_has_permitted_context(dir, inode)) { 575 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu", 576 dir->i_ino, inode->i_ino); 577 err = -EPERM; 578 goto out_iput; 579 } 580 out_splice: 581 if (IS_ENABLED(CONFIG_UNICODE) && !inode && IS_CASEFOLDED(dir)) { 582 /* Eventually we want to call d_add_ci(dentry, NULL) 583 * for negative dentries in the encoding case as 584 * well. For now, prevent the negative dentry 585 * from being cached. 586 */ 587 trace_f2fs_lookup_end(dir, dentry, ino, err); 588 return NULL; 589 } 590 591 new = d_splice_alias(inode, dentry); 592 trace_f2fs_lookup_end(dir, !IS_ERR_OR_NULL(new) ? new : dentry, 593 ino, IS_ERR(new) ? PTR_ERR(new) : err); 594 return new; 595 out_iput: 596 iput(inode); 597 out: 598 trace_f2fs_lookup_end(dir, dentry, ino, err); 599 return ERR_PTR(err); 600 } 601 602 static int f2fs_unlink(struct inode *dir, struct dentry *dentry) 603 { 604 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 605 struct inode *inode = d_inode(dentry); 606 struct f2fs_dir_entry *de; 607 struct page *page; 608 int err; 609 610 trace_f2fs_unlink_enter(dir, dentry); 611 612 if (unlikely(f2fs_cp_error(sbi))) { 613 err = -EIO; 614 goto fail; 615 } 616 617 err = f2fs_dquot_initialize(dir); 618 if (err) 619 goto fail; 620 err = f2fs_dquot_initialize(inode); 621 if (err) 622 goto fail; 623 624 de = f2fs_find_entry(dir, &dentry->d_name, &page); 625 if (!de) { 626 if (IS_ERR(page)) 627 err = PTR_ERR(page); 628 goto fail; 629 } 630 631 f2fs_balance_fs(sbi, true); 632 633 f2fs_lock_op(sbi); 634 err = f2fs_acquire_orphan_inode(sbi); 635 if (err) { 636 f2fs_unlock_op(sbi); 637 f2fs_put_page(page, 0); 638 goto fail; 639 } 640 f2fs_delete_entry(de, page, dir, inode); 641 f2fs_unlock_op(sbi); 642 643 /* VFS negative dentries are incompatible with Encoding and 644 * Case-insensitiveness. Eventually we'll want avoid 645 * invalidating the dentries here, alongside with returning the 646 * negative dentries at f2fs_lookup(), when it is better 647 * supported by the VFS for the CI case. 648 */ 649 if (IS_ENABLED(CONFIG_UNICODE) && IS_CASEFOLDED(dir)) 650 d_invalidate(dentry); 651 652 if (IS_DIRSYNC(dir)) 653 f2fs_sync_fs(sbi->sb, 1); 654 fail: 655 trace_f2fs_unlink_exit(inode, err); 656 return err; 657 } 658 659 static const char *f2fs_get_link(struct dentry *dentry, 660 struct inode *inode, 661 struct delayed_call *done) 662 { 663 const char *link = page_get_link(dentry, inode, done); 664 665 if (!IS_ERR(link) && !*link) { 666 /* this is broken symlink case */ 667 do_delayed_call(done); 668 clear_delayed_call(done); 669 link = ERR_PTR(-ENOENT); 670 } 671 return link; 672 } 673 674 static int f2fs_symlink(struct mnt_idmap *idmap, struct inode *dir, 675 struct dentry *dentry, const char *symname) 676 { 677 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 678 struct inode *inode; 679 size_t len = strlen(symname); 680 struct fscrypt_str disk_link; 681 int err; 682 683 if (unlikely(f2fs_cp_error(sbi))) 684 return -EIO; 685 if (!f2fs_is_checkpoint_ready(sbi)) 686 return -ENOSPC; 687 688 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, 689 &disk_link); 690 if (err) 691 return err; 692 693 err = f2fs_dquot_initialize(dir); 694 if (err) 695 return err; 696 697 inode = f2fs_new_inode(idmap, dir, S_IFLNK | S_IRWXUGO, NULL); 698 if (IS_ERR(inode)) 699 return PTR_ERR(inode); 700 701 if (IS_ENCRYPTED(inode)) 702 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 703 else 704 inode->i_op = &f2fs_symlink_inode_operations; 705 inode_nohighmem(inode); 706 inode->i_mapping->a_ops = &f2fs_dblock_aops; 707 708 f2fs_lock_op(sbi); 709 err = f2fs_add_link(dentry, inode); 710 if (err) 711 goto out_f2fs_handle_failed_inode; 712 f2fs_unlock_op(sbi); 713 f2fs_alloc_nid_done(sbi, inode->i_ino); 714 715 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); 716 if (err) 717 goto err_out; 718 719 err = page_symlink(inode, disk_link.name, disk_link.len); 720 721 err_out: 722 d_instantiate_new(dentry, inode); 723 724 /* 725 * Let's flush symlink data in order to avoid broken symlink as much as 726 * possible. Nevertheless, fsyncing is the best way, but there is no 727 * way to get a file descriptor in order to flush that. 728 * 729 * Note that, it needs to do dir->fsync to make this recoverable. 730 * If the symlink path is stored into inline_data, there is no 731 * performance regression. 732 */ 733 if (!err) { 734 filemap_write_and_wait_range(inode->i_mapping, 0, 735 disk_link.len - 1); 736 737 if (IS_DIRSYNC(dir)) 738 f2fs_sync_fs(sbi->sb, 1); 739 } else { 740 f2fs_unlink(dir, dentry); 741 } 742 743 f2fs_balance_fs(sbi, true); 744 goto out_free_encrypted_link; 745 746 out_f2fs_handle_failed_inode: 747 f2fs_handle_failed_inode(inode); 748 out_free_encrypted_link: 749 if (disk_link.name != (unsigned char *)symname) 750 kfree(disk_link.name); 751 return err; 752 } 753 754 static int f2fs_mkdir(struct mnt_idmap *idmap, struct inode *dir, 755 struct dentry *dentry, umode_t mode) 756 { 757 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 758 struct inode *inode; 759 int err; 760 761 if (unlikely(f2fs_cp_error(sbi))) 762 return -EIO; 763 764 err = f2fs_dquot_initialize(dir); 765 if (err) 766 return err; 767 768 inode = f2fs_new_inode(idmap, dir, S_IFDIR | mode, NULL); 769 if (IS_ERR(inode)) 770 return PTR_ERR(inode); 771 772 inode->i_op = &f2fs_dir_inode_operations; 773 inode->i_fop = &f2fs_dir_operations; 774 inode->i_mapping->a_ops = &f2fs_dblock_aops; 775 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 776 777 set_inode_flag(inode, FI_INC_LINK); 778 f2fs_lock_op(sbi); 779 err = f2fs_add_link(dentry, inode); 780 if (err) 781 goto out_fail; 782 f2fs_unlock_op(sbi); 783 784 f2fs_alloc_nid_done(sbi, inode->i_ino); 785 786 d_instantiate_new(dentry, inode); 787 788 if (IS_DIRSYNC(dir)) 789 f2fs_sync_fs(sbi->sb, 1); 790 791 f2fs_balance_fs(sbi, true); 792 return 0; 793 794 out_fail: 795 clear_inode_flag(inode, FI_INC_LINK); 796 f2fs_handle_failed_inode(inode); 797 return err; 798 } 799 800 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) 801 { 802 struct inode *inode = d_inode(dentry); 803 804 if (f2fs_empty_dir(inode)) 805 return f2fs_unlink(dir, dentry); 806 return -ENOTEMPTY; 807 } 808 809 static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir, 810 struct dentry *dentry, umode_t mode, dev_t rdev) 811 { 812 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 813 struct inode *inode; 814 int err = 0; 815 816 if (unlikely(f2fs_cp_error(sbi))) 817 return -EIO; 818 if (!f2fs_is_checkpoint_ready(sbi)) 819 return -ENOSPC; 820 821 err = f2fs_dquot_initialize(dir); 822 if (err) 823 return err; 824 825 inode = f2fs_new_inode(idmap, dir, mode, NULL); 826 if (IS_ERR(inode)) 827 return PTR_ERR(inode); 828 829 init_special_inode(inode, inode->i_mode, rdev); 830 inode->i_op = &f2fs_special_inode_operations; 831 832 f2fs_lock_op(sbi); 833 err = f2fs_add_link(dentry, inode); 834 if (err) 835 goto out; 836 f2fs_unlock_op(sbi); 837 838 f2fs_alloc_nid_done(sbi, inode->i_ino); 839 840 d_instantiate_new(dentry, inode); 841 842 if (IS_DIRSYNC(dir)) 843 f2fs_sync_fs(sbi->sb, 1); 844 845 f2fs_balance_fs(sbi, true); 846 return 0; 847 out: 848 f2fs_handle_failed_inode(inode); 849 return err; 850 } 851 852 static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 853 struct file *file, umode_t mode, bool is_whiteout, 854 struct inode **new_inode, struct f2fs_filename *fname) 855 { 856 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 857 struct inode *inode; 858 int err; 859 860 err = f2fs_dquot_initialize(dir); 861 if (err) 862 return err; 863 864 inode = f2fs_new_inode(idmap, dir, mode, NULL); 865 if (IS_ERR(inode)) 866 return PTR_ERR(inode); 867 868 if (is_whiteout) { 869 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV); 870 inode->i_op = &f2fs_special_inode_operations; 871 } else { 872 inode->i_op = &f2fs_file_inode_operations; 873 inode->i_fop = &f2fs_file_operations; 874 inode->i_mapping->a_ops = &f2fs_dblock_aops; 875 } 876 877 f2fs_lock_op(sbi); 878 err = f2fs_acquire_orphan_inode(sbi); 879 if (err) 880 goto out; 881 882 err = f2fs_do_tmpfile(inode, dir, fname); 883 if (err) 884 goto release_out; 885 886 /* 887 * add this non-linked tmpfile to orphan list, in this way we could 888 * remove all unused data of tmpfile after abnormal power-off. 889 */ 890 f2fs_add_orphan_inode(inode); 891 f2fs_alloc_nid_done(sbi, inode->i_ino); 892 893 if (is_whiteout) { 894 f2fs_i_links_write(inode, false); 895 896 spin_lock(&inode->i_lock); 897 inode->i_state |= I_LINKABLE; 898 spin_unlock(&inode->i_lock); 899 } else { 900 if (file) 901 d_tmpfile(file, inode); 902 else 903 f2fs_i_links_write(inode, false); 904 } 905 /* link_count was changed by d_tmpfile as well. */ 906 f2fs_unlock_op(sbi); 907 unlock_new_inode(inode); 908 909 if (new_inode) 910 *new_inode = inode; 911 912 f2fs_balance_fs(sbi, true); 913 return 0; 914 915 release_out: 916 f2fs_release_orphan_inode(sbi); 917 out: 918 f2fs_handle_failed_inode(inode); 919 return err; 920 } 921 922 static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 923 struct file *file, umode_t mode) 924 { 925 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 926 int err; 927 928 if (unlikely(f2fs_cp_error(sbi))) 929 return -EIO; 930 if (!f2fs_is_checkpoint_ready(sbi)) 931 return -ENOSPC; 932 933 err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL, NULL); 934 935 return finish_open_simple(file, err); 936 } 937 938 static int f2fs_create_whiteout(struct mnt_idmap *idmap, 939 struct inode *dir, struct inode **whiteout, 940 struct f2fs_filename *fname) 941 { 942 return __f2fs_tmpfile(idmap, dir, NULL, S_IFCHR | WHITEOUT_MODE, 943 true, whiteout, fname); 944 } 945 946 int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 947 struct inode **new_inode) 948 { 949 return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG, 950 false, new_inode, NULL); 951 } 952 953 static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir, 954 struct dentry *old_dentry, struct inode *new_dir, 955 struct dentry *new_dentry, unsigned int flags) 956 { 957 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 958 struct inode *old_inode = d_inode(old_dentry); 959 struct inode *new_inode = d_inode(new_dentry); 960 struct inode *whiteout = NULL; 961 struct page *old_dir_page = NULL; 962 struct page *old_page, *new_page = NULL; 963 struct f2fs_dir_entry *old_dir_entry = NULL; 964 struct f2fs_dir_entry *old_entry; 965 struct f2fs_dir_entry *new_entry; 966 bool old_is_dir = S_ISDIR(old_inode->i_mode); 967 int err; 968 969 if (unlikely(f2fs_cp_error(sbi))) 970 return -EIO; 971 if (!f2fs_is_checkpoint_ready(sbi)) 972 return -ENOSPC; 973 974 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 975 (!projid_eq(F2FS_I(new_dir)->i_projid, 976 F2FS_I(old_dentry->d_inode)->i_projid))) 977 return -EXDEV; 978 979 /* 980 * If new_inode is null, the below renaming flow will 981 * add a link in old_dir which can convert inline_dir. 982 * After then, if we failed to get the entry due to other 983 * reasons like ENOMEM, we had to remove the new entry. 984 * Instead of adding such the error handling routine, let's 985 * simply convert first here. 986 */ 987 if (old_dir == new_dir && !new_inode) { 988 err = f2fs_try_convert_inline_dir(old_dir, new_dentry); 989 if (err) 990 return err; 991 } 992 993 if (flags & RENAME_WHITEOUT) { 994 struct f2fs_filename fname; 995 996 err = f2fs_setup_filename(old_dir, &old_dentry->d_name, 997 0, &fname); 998 if (err) 999 return err; 1000 1001 err = f2fs_create_whiteout(idmap, old_dir, &whiteout, &fname); 1002 if (err) 1003 return err; 1004 } 1005 1006 err = f2fs_dquot_initialize(old_dir); 1007 if (err) 1008 goto out; 1009 1010 err = f2fs_dquot_initialize(new_dir); 1011 if (err) 1012 goto out; 1013 1014 if (new_inode) { 1015 err = f2fs_dquot_initialize(new_inode); 1016 if (err) 1017 goto out; 1018 } 1019 1020 err = -ENOENT; 1021 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 1022 if (!old_entry) { 1023 if (IS_ERR(old_page)) 1024 err = PTR_ERR(old_page); 1025 goto out; 1026 } 1027 1028 if (old_is_dir && old_dir != new_dir) { 1029 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); 1030 if (!old_dir_entry) { 1031 if (IS_ERR(old_dir_page)) 1032 err = PTR_ERR(old_dir_page); 1033 goto out_old; 1034 } 1035 } 1036 1037 if (new_inode) { 1038 1039 err = -ENOTEMPTY; 1040 if (old_is_dir && !f2fs_empty_dir(new_inode)) 1041 goto out_dir; 1042 1043 err = -ENOENT; 1044 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, 1045 &new_page); 1046 if (!new_entry) { 1047 if (IS_ERR(new_page)) 1048 err = PTR_ERR(new_page); 1049 goto out_dir; 1050 } 1051 1052 f2fs_balance_fs(sbi, true); 1053 1054 f2fs_lock_op(sbi); 1055 1056 err = f2fs_acquire_orphan_inode(sbi); 1057 if (err) 1058 goto put_out_dir; 1059 1060 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 1061 new_page = NULL; 1062 1063 inode_set_ctime_current(new_inode); 1064 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1065 if (old_is_dir) 1066 f2fs_i_links_write(new_inode, false); 1067 f2fs_i_links_write(new_inode, false); 1068 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1069 1070 if (!new_inode->i_nlink) 1071 f2fs_add_orphan_inode(new_inode); 1072 else 1073 f2fs_release_orphan_inode(sbi); 1074 } else { 1075 f2fs_balance_fs(sbi, true); 1076 1077 f2fs_lock_op(sbi); 1078 1079 err = f2fs_add_link(new_dentry, old_inode); 1080 if (err) { 1081 f2fs_unlock_op(sbi); 1082 goto out_dir; 1083 } 1084 1085 if (old_is_dir) 1086 f2fs_i_links_write(new_dir, true); 1087 } 1088 1089 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1090 if (!old_is_dir || whiteout) 1091 file_lost_pino(old_inode); 1092 else 1093 /* adjust dir's i_pino to pass fsck check */ 1094 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1095 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1096 1097 inode_set_ctime_current(old_inode); 1098 f2fs_mark_inode_dirty_sync(old_inode, false); 1099 1100 f2fs_delete_entry(old_entry, old_page, old_dir, NULL); 1101 old_page = NULL; 1102 1103 if (whiteout) { 1104 set_inode_flag(whiteout, FI_INC_LINK); 1105 err = f2fs_add_link(old_dentry, whiteout); 1106 if (err) 1107 goto put_out_dir; 1108 1109 spin_lock(&whiteout->i_lock); 1110 whiteout->i_state &= ~I_LINKABLE; 1111 spin_unlock(&whiteout->i_lock); 1112 1113 iput(whiteout); 1114 } 1115 1116 if (old_dir_entry) 1117 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); 1118 if (old_is_dir) 1119 f2fs_i_links_write(old_dir, false); 1120 1121 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1122 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1123 if (S_ISDIR(old_inode->i_mode)) 1124 f2fs_add_ino_entry(sbi, old_inode->i_ino, 1125 TRANS_DIR_INO); 1126 } 1127 1128 f2fs_unlock_op(sbi); 1129 1130 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1131 f2fs_sync_fs(sbi->sb, 1); 1132 1133 f2fs_update_time(sbi, REQ_TIME); 1134 return 0; 1135 1136 put_out_dir: 1137 f2fs_unlock_op(sbi); 1138 f2fs_put_page(new_page, 0); 1139 out_dir: 1140 if (old_dir_entry) 1141 f2fs_put_page(old_dir_page, 0); 1142 out_old: 1143 f2fs_put_page(old_page, 0); 1144 out: 1145 iput(whiteout); 1146 return err; 1147 } 1148 1149 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, 1150 struct inode *new_dir, struct dentry *new_dentry) 1151 { 1152 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 1153 struct inode *old_inode = d_inode(old_dentry); 1154 struct inode *new_inode = d_inode(new_dentry); 1155 struct page *old_dir_page, *new_dir_page; 1156 struct page *old_page, *new_page; 1157 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; 1158 struct f2fs_dir_entry *old_entry, *new_entry; 1159 int old_nlink = 0, new_nlink = 0; 1160 int err; 1161 1162 if (unlikely(f2fs_cp_error(sbi))) 1163 return -EIO; 1164 if (!f2fs_is_checkpoint_ready(sbi)) 1165 return -ENOSPC; 1166 1167 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1168 !projid_eq(F2FS_I(new_dir)->i_projid, 1169 F2FS_I(old_dentry->d_inode)->i_projid)) || 1170 (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1171 !projid_eq(F2FS_I(old_dir)->i_projid, 1172 F2FS_I(new_dentry->d_inode)->i_projid))) 1173 return -EXDEV; 1174 1175 err = f2fs_dquot_initialize(old_dir); 1176 if (err) 1177 goto out; 1178 1179 err = f2fs_dquot_initialize(new_dir); 1180 if (err) 1181 goto out; 1182 1183 err = -ENOENT; 1184 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 1185 if (!old_entry) { 1186 if (IS_ERR(old_page)) 1187 err = PTR_ERR(old_page); 1188 goto out; 1189 } 1190 1191 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); 1192 if (!new_entry) { 1193 if (IS_ERR(new_page)) 1194 err = PTR_ERR(new_page); 1195 goto out_old; 1196 } 1197 1198 /* prepare for updating ".." directory entry info later */ 1199 if (old_dir != new_dir) { 1200 if (S_ISDIR(old_inode->i_mode)) { 1201 old_dir_entry = f2fs_parent_dir(old_inode, 1202 &old_dir_page); 1203 if (!old_dir_entry) { 1204 if (IS_ERR(old_dir_page)) 1205 err = PTR_ERR(old_dir_page); 1206 goto out_new; 1207 } 1208 } 1209 1210 if (S_ISDIR(new_inode->i_mode)) { 1211 new_dir_entry = f2fs_parent_dir(new_inode, 1212 &new_dir_page); 1213 if (!new_dir_entry) { 1214 if (IS_ERR(new_dir_page)) 1215 err = PTR_ERR(new_dir_page); 1216 goto out_old_dir; 1217 } 1218 } 1219 } 1220 1221 /* 1222 * If cross rename between file and directory those are not 1223 * in the same directory, we will inc nlink of file's parent 1224 * later, so we should check upper boundary of its nlink. 1225 */ 1226 if ((!old_dir_entry || !new_dir_entry) && 1227 old_dir_entry != new_dir_entry) { 1228 old_nlink = old_dir_entry ? -1 : 1; 1229 new_nlink = -old_nlink; 1230 err = -EMLINK; 1231 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) || 1232 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX)) 1233 goto out_new_dir; 1234 } 1235 1236 f2fs_balance_fs(sbi, true); 1237 1238 f2fs_lock_op(sbi); 1239 1240 /* update ".." directory entry info of old dentry */ 1241 if (old_dir_entry) 1242 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); 1243 1244 /* update ".." directory entry info of new dentry */ 1245 if (new_dir_entry) 1246 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir); 1247 1248 /* update directory entry info of old dir inode */ 1249 f2fs_set_link(old_dir, old_entry, old_page, new_inode); 1250 1251 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1252 if (!old_dir_entry) 1253 file_lost_pino(old_inode); 1254 else 1255 /* adjust dir's i_pino to pass fsck check */ 1256 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1257 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1258 1259 inode_set_ctime_current(old_dir); 1260 if (old_nlink) { 1261 f2fs_down_write(&F2FS_I(old_dir)->i_sem); 1262 f2fs_i_links_write(old_dir, old_nlink > 0); 1263 f2fs_up_write(&F2FS_I(old_dir)->i_sem); 1264 } 1265 f2fs_mark_inode_dirty_sync(old_dir, false); 1266 1267 /* update directory entry info of new dir inode */ 1268 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 1269 1270 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1271 if (!new_dir_entry) 1272 file_lost_pino(new_inode); 1273 else 1274 /* adjust dir's i_pino to pass fsck check */ 1275 f2fs_i_pino_write(new_inode, old_dir->i_ino); 1276 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1277 1278 inode_set_ctime_current(new_dir); 1279 if (new_nlink) { 1280 f2fs_down_write(&F2FS_I(new_dir)->i_sem); 1281 f2fs_i_links_write(new_dir, new_nlink > 0); 1282 f2fs_up_write(&F2FS_I(new_dir)->i_sem); 1283 } 1284 f2fs_mark_inode_dirty_sync(new_dir, false); 1285 1286 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1287 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO); 1288 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1289 } 1290 1291 f2fs_unlock_op(sbi); 1292 1293 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1294 f2fs_sync_fs(sbi->sb, 1); 1295 1296 f2fs_update_time(sbi, REQ_TIME); 1297 return 0; 1298 out_new_dir: 1299 if (new_dir_entry) { 1300 f2fs_put_page(new_dir_page, 0); 1301 } 1302 out_old_dir: 1303 if (old_dir_entry) { 1304 f2fs_put_page(old_dir_page, 0); 1305 } 1306 out_new: 1307 f2fs_put_page(new_page, 0); 1308 out_old: 1309 f2fs_put_page(old_page, 0); 1310 out: 1311 return err; 1312 } 1313 1314 static int f2fs_rename2(struct mnt_idmap *idmap, 1315 struct inode *old_dir, struct dentry *old_dentry, 1316 struct inode *new_dir, struct dentry *new_dentry, 1317 unsigned int flags) 1318 { 1319 int err; 1320 1321 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) 1322 return -EINVAL; 1323 1324 trace_f2fs_rename_start(old_dir, old_dentry, new_dir, new_dentry, 1325 flags); 1326 1327 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry, 1328 flags); 1329 if (err) 1330 return err; 1331 1332 if (flags & RENAME_EXCHANGE) 1333 err = f2fs_cross_rename(old_dir, old_dentry, 1334 new_dir, new_dentry); 1335 else 1336 /* 1337 * VFS has already handled the new dentry existence case, 1338 * here, we just deal with "RENAME_NOREPLACE" as regular rename. 1339 */ 1340 err = f2fs_rename(idmap, old_dir, old_dentry, 1341 new_dir, new_dentry, flags); 1342 1343 trace_f2fs_rename_end(old_dentry, new_dentry, flags, err); 1344 return err; 1345 } 1346 1347 static const char *f2fs_encrypted_get_link(struct dentry *dentry, 1348 struct inode *inode, 1349 struct delayed_call *done) 1350 { 1351 struct page *page; 1352 const char *target; 1353 1354 if (!dentry) 1355 return ERR_PTR(-ECHILD); 1356 1357 page = read_mapping_page(inode->i_mapping, 0, NULL); 1358 if (IS_ERR(page)) 1359 return ERR_CAST(page); 1360 1361 target = fscrypt_get_symlink(inode, page_address(page), 1362 inode->i_sb->s_blocksize, done); 1363 put_page(page); 1364 return target; 1365 } 1366 1367 static int f2fs_encrypted_symlink_getattr(struct mnt_idmap *idmap, 1368 const struct path *path, 1369 struct kstat *stat, u32 request_mask, 1370 unsigned int query_flags) 1371 { 1372 f2fs_getattr(idmap, path, stat, request_mask, query_flags); 1373 1374 return fscrypt_symlink_getattr(path, stat); 1375 } 1376 1377 const struct inode_operations f2fs_encrypted_symlink_inode_operations = { 1378 .get_link = f2fs_encrypted_get_link, 1379 .getattr = f2fs_encrypted_symlink_getattr, 1380 .setattr = f2fs_setattr, 1381 .listxattr = f2fs_listxattr, 1382 }; 1383 1384 const struct inode_operations f2fs_dir_inode_operations = { 1385 .create = f2fs_create, 1386 .lookup = f2fs_lookup, 1387 .link = f2fs_link, 1388 .unlink = f2fs_unlink, 1389 .symlink = f2fs_symlink, 1390 .mkdir = f2fs_mkdir, 1391 .rmdir = f2fs_rmdir, 1392 .mknod = f2fs_mknod, 1393 .rename = f2fs_rename2, 1394 .tmpfile = f2fs_tmpfile, 1395 .getattr = f2fs_getattr, 1396 .setattr = f2fs_setattr, 1397 .get_inode_acl = f2fs_get_acl, 1398 .set_acl = f2fs_set_acl, 1399 .listxattr = f2fs_listxattr, 1400 .fiemap = f2fs_fiemap, 1401 .fileattr_get = f2fs_fileattr_get, 1402 .fileattr_set = f2fs_fileattr_set, 1403 }; 1404 1405 const struct inode_operations f2fs_symlink_inode_operations = { 1406 .get_link = f2fs_get_link, 1407 .getattr = f2fs_getattr, 1408 .setattr = f2fs_setattr, 1409 .listxattr = f2fs_listxattr, 1410 }; 1411 1412 const struct inode_operations f2fs_special_inode_operations = { 1413 .getattr = f2fs_getattr, 1414 .setattr = f2fs_setattr, 1415 .get_inode_acl = f2fs_get_acl, 1416 .set_acl = f2fs_set_acl, 1417 .listxattr = f2fs_listxattr, 1418 }; 1419