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 inode->i_mtime = inode->i_atime = inode_set_ctime_current(inode); 247 F2FS_I(inode)->i_crtime = inode->i_mtime; 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 qstr dotdot = QSTR_INIT("..", 2); 463 struct f2fs_dir_entry *de; 464 struct page *page; 465 int err = 0; 466 467 if (f2fs_readonly(sbi->sb)) { 468 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint", 469 dir->i_ino, pino); 470 return 0; 471 } 472 473 if (!S_ISDIR(dir->i_mode)) { 474 f2fs_err(sbi, "inconsistent inode status, skip recovering inline_dots inode (ino:%lu, i_mode:%u, pino:%u)", 475 dir->i_ino, dir->i_mode, pino); 476 set_sbi_flag(sbi, SBI_NEED_FSCK); 477 return -ENOTDIR; 478 } 479 480 err = f2fs_dquot_initialize(dir); 481 if (err) 482 return err; 483 484 f2fs_balance_fs(sbi, true); 485 486 f2fs_lock_op(sbi); 487 488 de = f2fs_find_entry(dir, &dot, &page); 489 if (de) { 490 f2fs_put_page(page, 0); 491 } else if (IS_ERR(page)) { 492 err = PTR_ERR(page); 493 goto out; 494 } else { 495 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR); 496 if (err) 497 goto out; 498 } 499 500 de = f2fs_find_entry(dir, &dotdot, &page); 501 if (de) 502 f2fs_put_page(page, 0); 503 else if (IS_ERR(page)) 504 err = PTR_ERR(page); 505 else 506 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR); 507 out: 508 if (!err) 509 clear_inode_flag(dir, FI_INLINE_DOTS); 510 511 f2fs_unlock_op(sbi); 512 return err; 513 } 514 515 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 516 unsigned int flags) 517 { 518 struct inode *inode = NULL; 519 struct f2fs_dir_entry *de; 520 struct page *page; 521 struct dentry *new; 522 nid_t ino = -1; 523 int err = 0; 524 unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir)); 525 struct f2fs_filename fname; 526 527 trace_f2fs_lookup_start(dir, dentry, flags); 528 529 if (dentry->d_name.len > F2FS_NAME_LEN) { 530 err = -ENAMETOOLONG; 531 goto out; 532 } 533 534 err = f2fs_prepare_lookup(dir, dentry, &fname); 535 generic_set_encrypted_ci_d_ops(dentry); 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) 582 if (!inode && IS_CASEFOLDED(dir)) { 583 /* Eventually we want to call d_add_ci(dentry, NULL) 584 * for negative dentries in the encoding case as 585 * well. For now, prevent the negative dentry 586 * from being cached. 587 */ 588 trace_f2fs_lookup_end(dir, dentry, ino, err); 589 return NULL; 590 } 591 #endif 592 new = d_splice_alias(inode, dentry); 593 trace_f2fs_lookup_end(dir, !IS_ERR_OR_NULL(new) ? new : dentry, 594 ino, IS_ERR(new) ? PTR_ERR(new) : err); 595 return new; 596 out_iput: 597 iput(inode); 598 out: 599 trace_f2fs_lookup_end(dir, dentry, ino, err); 600 return ERR_PTR(err); 601 } 602 603 static int f2fs_unlink(struct inode *dir, struct dentry *dentry) 604 { 605 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 606 struct inode *inode = d_inode(dentry); 607 struct f2fs_dir_entry *de; 608 struct page *page; 609 int err; 610 611 trace_f2fs_unlink_enter(dir, dentry); 612 613 if (unlikely(f2fs_cp_error(sbi))) { 614 err = -EIO; 615 goto fail; 616 } 617 618 err = f2fs_dquot_initialize(dir); 619 if (err) 620 goto fail; 621 err = f2fs_dquot_initialize(inode); 622 if (err) 623 goto fail; 624 625 de = f2fs_find_entry(dir, &dentry->d_name, &page); 626 if (!de) { 627 if (IS_ERR(page)) 628 err = PTR_ERR(page); 629 goto fail; 630 } 631 632 f2fs_balance_fs(sbi, true); 633 634 f2fs_lock_op(sbi); 635 err = f2fs_acquire_orphan_inode(sbi); 636 if (err) { 637 f2fs_unlock_op(sbi); 638 f2fs_put_page(page, 0); 639 goto fail; 640 } 641 f2fs_delete_entry(de, page, dir, inode); 642 f2fs_unlock_op(sbi); 643 644 #if IS_ENABLED(CONFIG_UNICODE) 645 /* VFS negative dentries are incompatible with Encoding and 646 * Case-insensitiveness. Eventually we'll want avoid 647 * invalidating the dentries here, alongside with returning the 648 * negative dentries at f2fs_lookup(), when it is better 649 * supported by the VFS for the CI case. 650 */ 651 if (IS_CASEFOLDED(dir)) 652 d_invalidate(dentry); 653 #endif 654 if (IS_DIRSYNC(dir)) 655 f2fs_sync_fs(sbi->sb, 1); 656 fail: 657 trace_f2fs_unlink_exit(inode, err); 658 return err; 659 } 660 661 static const char *f2fs_get_link(struct dentry *dentry, 662 struct inode *inode, 663 struct delayed_call *done) 664 { 665 const char *link = page_get_link(dentry, inode, done); 666 667 if (!IS_ERR(link) && !*link) { 668 /* this is broken symlink case */ 669 do_delayed_call(done); 670 clear_delayed_call(done); 671 link = ERR_PTR(-ENOENT); 672 } 673 return link; 674 } 675 676 static int f2fs_symlink(struct mnt_idmap *idmap, struct inode *dir, 677 struct dentry *dentry, const char *symname) 678 { 679 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 680 struct inode *inode; 681 size_t len = strlen(symname); 682 struct fscrypt_str disk_link; 683 int err; 684 685 if (unlikely(f2fs_cp_error(sbi))) 686 return -EIO; 687 if (!f2fs_is_checkpoint_ready(sbi)) 688 return -ENOSPC; 689 690 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, 691 &disk_link); 692 if (err) 693 return err; 694 695 err = f2fs_dquot_initialize(dir); 696 if (err) 697 return err; 698 699 inode = f2fs_new_inode(idmap, dir, S_IFLNK | S_IRWXUGO, NULL); 700 if (IS_ERR(inode)) 701 return PTR_ERR(inode); 702 703 if (IS_ENCRYPTED(inode)) 704 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 705 else 706 inode->i_op = &f2fs_symlink_inode_operations; 707 inode_nohighmem(inode); 708 inode->i_mapping->a_ops = &f2fs_dblock_aops; 709 710 f2fs_lock_op(sbi); 711 err = f2fs_add_link(dentry, inode); 712 if (err) 713 goto out_f2fs_handle_failed_inode; 714 f2fs_unlock_op(sbi); 715 f2fs_alloc_nid_done(sbi, inode->i_ino); 716 717 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); 718 if (err) 719 goto err_out; 720 721 err = page_symlink(inode, disk_link.name, disk_link.len); 722 723 err_out: 724 d_instantiate_new(dentry, inode); 725 726 /* 727 * Let's flush symlink data in order to avoid broken symlink as much as 728 * possible. Nevertheless, fsyncing is the best way, but there is no 729 * way to get a file descriptor in order to flush that. 730 * 731 * Note that, it needs to do dir->fsync to make this recoverable. 732 * If the symlink path is stored into inline_data, there is no 733 * performance regression. 734 */ 735 if (!err) { 736 filemap_write_and_wait_range(inode->i_mapping, 0, 737 disk_link.len - 1); 738 739 if (IS_DIRSYNC(dir)) 740 f2fs_sync_fs(sbi->sb, 1); 741 } else { 742 f2fs_unlink(dir, dentry); 743 } 744 745 f2fs_balance_fs(sbi, true); 746 goto out_free_encrypted_link; 747 748 out_f2fs_handle_failed_inode: 749 f2fs_handle_failed_inode(inode); 750 out_free_encrypted_link: 751 if (disk_link.name != (unsigned char *)symname) 752 kfree(disk_link.name); 753 return err; 754 } 755 756 static int f2fs_mkdir(struct mnt_idmap *idmap, struct inode *dir, 757 struct dentry *dentry, umode_t mode) 758 { 759 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 760 struct inode *inode; 761 int err; 762 763 if (unlikely(f2fs_cp_error(sbi))) 764 return -EIO; 765 766 err = f2fs_dquot_initialize(dir); 767 if (err) 768 return err; 769 770 inode = f2fs_new_inode(idmap, dir, S_IFDIR | mode, NULL); 771 if (IS_ERR(inode)) 772 return PTR_ERR(inode); 773 774 inode->i_op = &f2fs_dir_inode_operations; 775 inode->i_fop = &f2fs_dir_operations; 776 inode->i_mapping->a_ops = &f2fs_dblock_aops; 777 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 778 779 set_inode_flag(inode, FI_INC_LINK); 780 f2fs_lock_op(sbi); 781 err = f2fs_add_link(dentry, inode); 782 if (err) 783 goto out_fail; 784 f2fs_unlock_op(sbi); 785 786 f2fs_alloc_nid_done(sbi, inode->i_ino); 787 788 d_instantiate_new(dentry, inode); 789 790 if (IS_DIRSYNC(dir)) 791 f2fs_sync_fs(sbi->sb, 1); 792 793 f2fs_balance_fs(sbi, true); 794 return 0; 795 796 out_fail: 797 clear_inode_flag(inode, FI_INC_LINK); 798 f2fs_handle_failed_inode(inode); 799 return err; 800 } 801 802 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) 803 { 804 struct inode *inode = d_inode(dentry); 805 806 if (f2fs_empty_dir(inode)) 807 return f2fs_unlink(dir, dentry); 808 return -ENOTEMPTY; 809 } 810 811 static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir, 812 struct dentry *dentry, umode_t mode, dev_t rdev) 813 { 814 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 815 struct inode *inode; 816 int err = 0; 817 818 if (unlikely(f2fs_cp_error(sbi))) 819 return -EIO; 820 if (!f2fs_is_checkpoint_ready(sbi)) 821 return -ENOSPC; 822 823 err = f2fs_dquot_initialize(dir); 824 if (err) 825 return err; 826 827 inode = f2fs_new_inode(idmap, dir, mode, NULL); 828 if (IS_ERR(inode)) 829 return PTR_ERR(inode); 830 831 init_special_inode(inode, inode->i_mode, rdev); 832 inode->i_op = &f2fs_special_inode_operations; 833 834 f2fs_lock_op(sbi); 835 err = f2fs_add_link(dentry, inode); 836 if (err) 837 goto out; 838 f2fs_unlock_op(sbi); 839 840 f2fs_alloc_nid_done(sbi, inode->i_ino); 841 842 d_instantiate_new(dentry, inode); 843 844 if (IS_DIRSYNC(dir)) 845 f2fs_sync_fs(sbi->sb, 1); 846 847 f2fs_balance_fs(sbi, true); 848 return 0; 849 out: 850 f2fs_handle_failed_inode(inode); 851 return err; 852 } 853 854 static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 855 struct file *file, umode_t mode, bool is_whiteout, 856 struct inode **new_inode, struct f2fs_filename *fname) 857 { 858 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 859 struct inode *inode; 860 int err; 861 862 err = f2fs_dquot_initialize(dir); 863 if (err) 864 return err; 865 866 inode = f2fs_new_inode(idmap, dir, mode, NULL); 867 if (IS_ERR(inode)) 868 return PTR_ERR(inode); 869 870 if (is_whiteout) { 871 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV); 872 inode->i_op = &f2fs_special_inode_operations; 873 } else { 874 inode->i_op = &f2fs_file_inode_operations; 875 inode->i_fop = &f2fs_file_operations; 876 inode->i_mapping->a_ops = &f2fs_dblock_aops; 877 } 878 879 f2fs_lock_op(sbi); 880 err = f2fs_acquire_orphan_inode(sbi); 881 if (err) 882 goto out; 883 884 err = f2fs_do_tmpfile(inode, dir, fname); 885 if (err) 886 goto release_out; 887 888 /* 889 * add this non-linked tmpfile to orphan list, in this way we could 890 * remove all unused data of tmpfile after abnormal power-off. 891 */ 892 f2fs_add_orphan_inode(inode); 893 f2fs_alloc_nid_done(sbi, inode->i_ino); 894 895 if (is_whiteout) { 896 f2fs_i_links_write(inode, false); 897 898 spin_lock(&inode->i_lock); 899 inode->i_state |= I_LINKABLE; 900 spin_unlock(&inode->i_lock); 901 } else { 902 if (file) 903 d_tmpfile(file, inode); 904 else 905 f2fs_i_links_write(inode, false); 906 } 907 /* link_count was changed by d_tmpfile as well. */ 908 f2fs_unlock_op(sbi); 909 unlock_new_inode(inode); 910 911 if (new_inode) 912 *new_inode = inode; 913 914 f2fs_balance_fs(sbi, true); 915 return 0; 916 917 release_out: 918 f2fs_release_orphan_inode(sbi); 919 out: 920 f2fs_handle_failed_inode(inode); 921 return err; 922 } 923 924 static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 925 struct file *file, umode_t mode) 926 { 927 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 928 int err; 929 930 if (unlikely(f2fs_cp_error(sbi))) 931 return -EIO; 932 if (!f2fs_is_checkpoint_ready(sbi)) 933 return -ENOSPC; 934 935 err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL, NULL); 936 937 return finish_open_simple(file, err); 938 } 939 940 static int f2fs_create_whiteout(struct mnt_idmap *idmap, 941 struct inode *dir, struct inode **whiteout, 942 struct f2fs_filename *fname) 943 { 944 return __f2fs_tmpfile(idmap, dir, NULL, S_IFCHR | WHITEOUT_MODE, 945 true, whiteout, fname); 946 } 947 948 int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir, 949 struct inode **new_inode) 950 { 951 return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG, 952 false, new_inode, NULL); 953 } 954 955 static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir, 956 struct dentry *old_dentry, struct inode *new_dir, 957 struct dentry *new_dentry, unsigned int flags) 958 { 959 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 960 struct inode *old_inode = d_inode(old_dentry); 961 struct inode *new_inode = d_inode(new_dentry); 962 struct inode *whiteout = NULL; 963 struct page *old_dir_page = NULL; 964 struct page *old_page, *new_page = NULL; 965 struct f2fs_dir_entry *old_dir_entry = NULL; 966 struct f2fs_dir_entry *old_entry; 967 struct f2fs_dir_entry *new_entry; 968 int err; 969 970 if (unlikely(f2fs_cp_error(sbi))) 971 return -EIO; 972 if (!f2fs_is_checkpoint_ready(sbi)) 973 return -ENOSPC; 974 975 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 976 (!projid_eq(F2FS_I(new_dir)->i_projid, 977 F2FS_I(old_dentry->d_inode)->i_projid))) 978 return -EXDEV; 979 980 /* 981 * If new_inode is null, the below renaming flow will 982 * add a link in old_dir which can convert inline_dir. 983 * After then, if we failed to get the entry due to other 984 * reasons like ENOMEM, we had to remove the new entry. 985 * Instead of adding such the error handling routine, let's 986 * simply convert first here. 987 */ 988 if (old_dir == new_dir && !new_inode) { 989 err = f2fs_try_convert_inline_dir(old_dir, new_dentry); 990 if (err) 991 return err; 992 } 993 994 if (flags & RENAME_WHITEOUT) { 995 struct f2fs_filename fname; 996 997 err = f2fs_setup_filename(old_dir, &old_dentry->d_name, 998 0, &fname); 999 if (err) 1000 return err; 1001 1002 err = f2fs_create_whiteout(idmap, old_dir, &whiteout, &fname); 1003 if (err) 1004 return err; 1005 } 1006 1007 err = f2fs_dquot_initialize(old_dir); 1008 if (err) 1009 goto out; 1010 1011 err = f2fs_dquot_initialize(new_dir); 1012 if (err) 1013 goto out; 1014 1015 if (new_inode) { 1016 err = f2fs_dquot_initialize(new_inode); 1017 if (err) 1018 goto out; 1019 } 1020 1021 err = -ENOENT; 1022 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 1023 if (!old_entry) { 1024 if (IS_ERR(old_page)) 1025 err = PTR_ERR(old_page); 1026 goto out; 1027 } 1028 1029 if (S_ISDIR(old_inode->i_mode)) { 1030 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); 1031 if (!old_dir_entry) { 1032 if (IS_ERR(old_dir_page)) 1033 err = PTR_ERR(old_dir_page); 1034 goto out_old; 1035 } 1036 } 1037 1038 if (new_inode) { 1039 1040 err = -ENOTEMPTY; 1041 if (old_dir_entry && !f2fs_empty_dir(new_inode)) 1042 goto out_dir; 1043 1044 err = -ENOENT; 1045 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, 1046 &new_page); 1047 if (!new_entry) { 1048 if (IS_ERR(new_page)) 1049 err = PTR_ERR(new_page); 1050 goto out_dir; 1051 } 1052 1053 f2fs_balance_fs(sbi, true); 1054 1055 f2fs_lock_op(sbi); 1056 1057 err = f2fs_acquire_orphan_inode(sbi); 1058 if (err) 1059 goto put_out_dir; 1060 1061 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 1062 new_page = NULL; 1063 1064 inode_set_ctime_current(new_inode); 1065 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1066 if (old_dir_entry) 1067 f2fs_i_links_write(new_inode, false); 1068 f2fs_i_links_write(new_inode, false); 1069 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1070 1071 if (!new_inode->i_nlink) 1072 f2fs_add_orphan_inode(new_inode); 1073 else 1074 f2fs_release_orphan_inode(sbi); 1075 } else { 1076 f2fs_balance_fs(sbi, true); 1077 1078 f2fs_lock_op(sbi); 1079 1080 err = f2fs_add_link(new_dentry, old_inode); 1081 if (err) { 1082 f2fs_unlock_op(sbi); 1083 goto out_dir; 1084 } 1085 1086 if (old_dir_entry) 1087 f2fs_i_links_write(new_dir, true); 1088 } 1089 1090 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1091 if (!old_dir_entry || whiteout) 1092 file_lost_pino(old_inode); 1093 else 1094 /* adjust dir's i_pino to pass fsck check */ 1095 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1096 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1097 1098 inode_set_ctime_current(old_inode); 1099 f2fs_mark_inode_dirty_sync(old_inode, false); 1100 1101 f2fs_delete_entry(old_entry, old_page, old_dir, NULL); 1102 old_page = NULL; 1103 1104 if (whiteout) { 1105 set_inode_flag(whiteout, FI_INC_LINK); 1106 err = f2fs_add_link(old_dentry, whiteout); 1107 if (err) 1108 goto put_out_dir; 1109 1110 spin_lock(&whiteout->i_lock); 1111 whiteout->i_state &= ~I_LINKABLE; 1112 spin_unlock(&whiteout->i_lock); 1113 1114 iput(whiteout); 1115 } 1116 1117 if (old_dir_entry) { 1118 if (old_dir != new_dir) 1119 f2fs_set_link(old_inode, old_dir_entry, 1120 old_dir_page, new_dir); 1121 else 1122 f2fs_put_page(old_dir_page, 0); 1123 f2fs_i_links_write(old_dir, false); 1124 } 1125 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1126 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1127 if (S_ISDIR(old_inode->i_mode)) 1128 f2fs_add_ino_entry(sbi, old_inode->i_ino, 1129 TRANS_DIR_INO); 1130 } 1131 1132 f2fs_unlock_op(sbi); 1133 1134 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1135 f2fs_sync_fs(sbi->sb, 1); 1136 1137 f2fs_update_time(sbi, REQ_TIME); 1138 return 0; 1139 1140 put_out_dir: 1141 f2fs_unlock_op(sbi); 1142 f2fs_put_page(new_page, 0); 1143 out_dir: 1144 if (old_dir_entry) 1145 f2fs_put_page(old_dir_page, 0); 1146 out_old: 1147 f2fs_put_page(old_page, 0); 1148 out: 1149 iput(whiteout); 1150 return err; 1151 } 1152 1153 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, 1154 struct inode *new_dir, struct dentry *new_dentry) 1155 { 1156 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 1157 struct inode *old_inode = d_inode(old_dentry); 1158 struct inode *new_inode = d_inode(new_dentry); 1159 struct page *old_dir_page, *new_dir_page; 1160 struct page *old_page, *new_page; 1161 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; 1162 struct f2fs_dir_entry *old_entry, *new_entry; 1163 int old_nlink = 0, new_nlink = 0; 1164 int err; 1165 1166 if (unlikely(f2fs_cp_error(sbi))) 1167 return -EIO; 1168 if (!f2fs_is_checkpoint_ready(sbi)) 1169 return -ENOSPC; 1170 1171 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1172 !projid_eq(F2FS_I(new_dir)->i_projid, 1173 F2FS_I(old_dentry->d_inode)->i_projid)) || 1174 (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1175 !projid_eq(F2FS_I(old_dir)->i_projid, 1176 F2FS_I(new_dentry->d_inode)->i_projid))) 1177 return -EXDEV; 1178 1179 err = f2fs_dquot_initialize(old_dir); 1180 if (err) 1181 goto out; 1182 1183 err = f2fs_dquot_initialize(new_dir); 1184 if (err) 1185 goto out; 1186 1187 err = -ENOENT; 1188 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 1189 if (!old_entry) { 1190 if (IS_ERR(old_page)) 1191 err = PTR_ERR(old_page); 1192 goto out; 1193 } 1194 1195 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); 1196 if (!new_entry) { 1197 if (IS_ERR(new_page)) 1198 err = PTR_ERR(new_page); 1199 goto out_old; 1200 } 1201 1202 /* prepare for updating ".." directory entry info later */ 1203 if (old_dir != new_dir) { 1204 if (S_ISDIR(old_inode->i_mode)) { 1205 old_dir_entry = f2fs_parent_dir(old_inode, 1206 &old_dir_page); 1207 if (!old_dir_entry) { 1208 if (IS_ERR(old_dir_page)) 1209 err = PTR_ERR(old_dir_page); 1210 goto out_new; 1211 } 1212 } 1213 1214 if (S_ISDIR(new_inode->i_mode)) { 1215 new_dir_entry = f2fs_parent_dir(new_inode, 1216 &new_dir_page); 1217 if (!new_dir_entry) { 1218 if (IS_ERR(new_dir_page)) 1219 err = PTR_ERR(new_dir_page); 1220 goto out_old_dir; 1221 } 1222 } 1223 } 1224 1225 /* 1226 * If cross rename between file and directory those are not 1227 * in the same directory, we will inc nlink of file's parent 1228 * later, so we should check upper boundary of its nlink. 1229 */ 1230 if ((!old_dir_entry || !new_dir_entry) && 1231 old_dir_entry != new_dir_entry) { 1232 old_nlink = old_dir_entry ? -1 : 1; 1233 new_nlink = -old_nlink; 1234 err = -EMLINK; 1235 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) || 1236 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX)) 1237 goto out_new_dir; 1238 } 1239 1240 f2fs_balance_fs(sbi, true); 1241 1242 f2fs_lock_op(sbi); 1243 1244 /* update ".." directory entry info of old dentry */ 1245 if (old_dir_entry) 1246 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); 1247 1248 /* update ".." directory entry info of new dentry */ 1249 if (new_dir_entry) 1250 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir); 1251 1252 /* update directory entry info of old dir inode */ 1253 f2fs_set_link(old_dir, old_entry, old_page, new_inode); 1254 1255 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1256 if (!old_dir_entry) 1257 file_lost_pino(old_inode); 1258 else 1259 /* adjust dir's i_pino to pass fsck check */ 1260 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1261 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1262 1263 inode_set_ctime_current(old_dir); 1264 if (old_nlink) { 1265 f2fs_down_write(&F2FS_I(old_dir)->i_sem); 1266 f2fs_i_links_write(old_dir, old_nlink > 0); 1267 f2fs_up_write(&F2FS_I(old_dir)->i_sem); 1268 } 1269 f2fs_mark_inode_dirty_sync(old_dir, false); 1270 1271 /* update directory entry info of new dir inode */ 1272 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 1273 1274 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1275 if (!new_dir_entry) 1276 file_lost_pino(new_inode); 1277 else 1278 /* adjust dir's i_pino to pass fsck check */ 1279 f2fs_i_pino_write(new_inode, old_dir->i_ino); 1280 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1281 1282 inode_set_ctime_current(new_dir); 1283 if (new_nlink) { 1284 f2fs_down_write(&F2FS_I(new_dir)->i_sem); 1285 f2fs_i_links_write(new_dir, new_nlink > 0); 1286 f2fs_up_write(&F2FS_I(new_dir)->i_sem); 1287 } 1288 f2fs_mark_inode_dirty_sync(new_dir, false); 1289 1290 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1291 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO); 1292 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1293 } 1294 1295 f2fs_unlock_op(sbi); 1296 1297 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1298 f2fs_sync_fs(sbi->sb, 1); 1299 1300 f2fs_update_time(sbi, REQ_TIME); 1301 return 0; 1302 out_new_dir: 1303 if (new_dir_entry) { 1304 f2fs_put_page(new_dir_page, 0); 1305 } 1306 out_old_dir: 1307 if (old_dir_entry) { 1308 f2fs_put_page(old_dir_page, 0); 1309 } 1310 out_new: 1311 f2fs_put_page(new_page, 0); 1312 out_old: 1313 f2fs_put_page(old_page, 0); 1314 out: 1315 return err; 1316 } 1317 1318 static int f2fs_rename2(struct mnt_idmap *idmap, 1319 struct inode *old_dir, struct dentry *old_dentry, 1320 struct inode *new_dir, struct dentry *new_dentry, 1321 unsigned int flags) 1322 { 1323 int err; 1324 1325 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) 1326 return -EINVAL; 1327 1328 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry, 1329 flags); 1330 if (err) 1331 return err; 1332 1333 if (flags & RENAME_EXCHANGE) { 1334 return f2fs_cross_rename(old_dir, old_dentry, 1335 new_dir, new_dentry); 1336 } 1337 /* 1338 * VFS has already handled the new dentry existence case, 1339 * here, we just deal with "RENAME_NOREPLACE" as regular rename. 1340 */ 1341 return f2fs_rename(idmap, old_dir, old_dentry, 1342 new_dir, new_dentry, flags); 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