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