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 int is_extension_exist(const unsigned char *s, const char *sub, 26 bool tmp_ext) 27 { 28 size_t slen = strlen(s); 29 size_t sublen = strlen(sub); 30 int i; 31 32 if (sublen == 1 && *sub == '*') 33 return 1; 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 0; 41 42 if (!tmp_ext) { 43 /* file has no temp extension */ 44 if (s[slen - sublen - 1] != '.') 45 return 0; 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 return 1; 54 } 55 56 return 0; 57 } 58 59 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, 60 bool hot, bool set) 61 { 62 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 63 int cold_count = le32_to_cpu(sbi->raw_super->extension_count); 64 int hot_count = sbi->raw_super->hot_ext_count; 65 int total_count = cold_count + hot_count; 66 int start, count; 67 int i; 68 69 if (set) { 70 if (total_count == F2FS_MAX_EXTENSION) 71 return -EINVAL; 72 } else { 73 if (!hot && !cold_count) 74 return -EINVAL; 75 if (hot && !hot_count) 76 return -EINVAL; 77 } 78 79 if (hot) { 80 start = cold_count; 81 count = total_count; 82 } else { 83 start = 0; 84 count = cold_count; 85 } 86 87 for (i = start; i < count; i++) { 88 if (strcmp(name, extlist[i])) 89 continue; 90 91 if (set) 92 return -EINVAL; 93 94 memcpy(extlist[i], extlist[i + 1], 95 F2FS_EXTENSION_LEN * (total_count - i - 1)); 96 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN); 97 if (hot) 98 sbi->raw_super->hot_ext_count = hot_count - 1; 99 else 100 sbi->raw_super->extension_count = 101 cpu_to_le32(cold_count - 1); 102 return 0; 103 } 104 105 if (!set) 106 return -EINVAL; 107 108 if (hot) { 109 memcpy(extlist[count], name, strlen(name)); 110 sbi->raw_super->hot_ext_count = hot_count + 1; 111 } else { 112 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN]; 113 114 memcpy(buf, &extlist[cold_count], 115 F2FS_EXTENSION_LEN * hot_count); 116 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN); 117 memcpy(extlist[cold_count], name, strlen(name)); 118 memcpy(&extlist[cold_count + 1], buf, 119 F2FS_EXTENSION_LEN * hot_count); 120 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1); 121 } 122 return 0; 123 } 124 125 static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir, 126 struct inode *inode, const unsigned char *name) 127 { 128 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 129 unsigned char (*noext)[F2FS_EXTENSION_LEN] = 130 F2FS_OPTION(sbi).noextensions; 131 unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions; 132 unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; 133 unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; 134 int i, cold_count, hot_count; 135 136 if (!f2fs_sb_has_compression(sbi)) 137 return; 138 139 if (S_ISDIR(inode->i_mode)) 140 goto inherit_comp; 141 142 /* This name comes only from normal files. */ 143 if (!name) 144 return; 145 146 /* Don't compress hot files. */ 147 f2fs_down_read(&sbi->sb_lock); 148 cold_count = le32_to_cpu(sbi->raw_super->extension_count); 149 hot_count = sbi->raw_super->hot_ext_count; 150 for (i = cold_count; i < cold_count + hot_count; i++) 151 if (is_extension_exist(name, extlist[i], false)) 152 break; 153 f2fs_up_read(&sbi->sb_lock); 154 if (i < (cold_count + hot_count)) 155 return; 156 157 /* Don't compress unallowed extension. */ 158 for (i = 0; i < noext_cnt; i++) 159 if (is_extension_exist(name, noext[i], false)) 160 return; 161 162 /* Compress wanting extension. */ 163 for (i = 0; i < ext_cnt; i++) { 164 if (is_extension_exist(name, ext[i], false)) { 165 set_compress_context(inode); 166 return; 167 } 168 } 169 inherit_comp: 170 /* Inherit the {no-}compression flag in directory */ 171 if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) { 172 F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL; 173 f2fs_mark_inode_dirty_sync(inode, true); 174 } else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) { 175 set_compress_context(inode); 176 } 177 } 178 179 /* 180 * Set file's temperature for hot/cold data separation 181 */ 182 static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode, 183 const unsigned char *name) 184 { 185 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; 186 int i, cold_count, hot_count; 187 188 f2fs_down_read(&sbi->sb_lock); 189 cold_count = le32_to_cpu(sbi->raw_super->extension_count); 190 hot_count = sbi->raw_super->hot_ext_count; 191 for (i = 0; i < cold_count + hot_count; i++) 192 if (is_extension_exist(name, extlist[i], true)) 193 break; 194 f2fs_up_read(&sbi->sb_lock); 195 196 if (i == cold_count + hot_count) 197 return; 198 199 if (i < cold_count) 200 file_set_cold(inode); 201 else 202 file_set_hot(inode); 203 } 204 205 static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns, 206 struct inode *dir, umode_t mode, 207 const char *name) 208 { 209 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 210 nid_t ino; 211 struct inode *inode; 212 bool nid_free = false; 213 bool encrypt = false; 214 int xattr_size = 0; 215 int err; 216 217 inode = new_inode(dir->i_sb); 218 if (!inode) 219 return ERR_PTR(-ENOMEM); 220 221 if (!f2fs_alloc_nid(sbi, &ino)) { 222 err = -ENOSPC; 223 goto fail; 224 } 225 226 nid_free = true; 227 228 inode_init_owner(mnt_userns, inode, dir, mode); 229 230 inode->i_ino = ino; 231 inode->i_blocks = 0; 232 inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); 233 F2FS_I(inode)->i_crtime = inode->i_mtime; 234 inode->i_generation = get_random_u32(); 235 236 if (S_ISDIR(inode->i_mode)) 237 F2FS_I(inode)->i_current_depth = 1; 238 239 err = insert_inode_locked(inode); 240 if (err) { 241 err = -EINVAL; 242 goto fail; 243 } 244 245 if (f2fs_sb_has_project_quota(sbi) && 246 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL)) 247 F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid; 248 else 249 F2FS_I(inode)->i_projid = make_kprojid(mnt_userns, 250 F2FS_DEF_PROJID); 251 252 err = fscrypt_prepare_new_inode(dir, inode, &encrypt); 253 if (err) 254 goto fail_drop; 255 256 err = f2fs_dquot_initialize(inode); 257 if (err) 258 goto fail_drop; 259 260 set_inode_flag(inode, FI_NEW_INODE); 261 262 if (encrypt) 263 f2fs_set_encrypted_inode(inode); 264 265 if (f2fs_sb_has_extra_attr(sbi)) { 266 set_inode_flag(inode, FI_EXTRA_ATTR); 267 F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE; 268 } 269 270 if (test_opt(sbi, INLINE_XATTR)) 271 set_inode_flag(inode, FI_INLINE_XATTR); 272 273 if (f2fs_may_inline_dentry(inode)) 274 set_inode_flag(inode, FI_INLINE_DENTRY); 275 276 if (f2fs_sb_has_flexible_inline_xattr(sbi)) { 277 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode)); 278 if (f2fs_has_inline_xattr(inode)) 279 xattr_size = F2FS_OPTION(sbi).inline_xattr_size; 280 /* Otherwise, will be 0 */ 281 } else if (f2fs_has_inline_xattr(inode) || 282 f2fs_has_inline_dentry(inode)) { 283 xattr_size = DEFAULT_INLINE_XATTR_ADDRS; 284 } 285 F2FS_I(inode)->i_inline_xattr_size = xattr_size; 286 287 F2FS_I(inode)->i_flags = 288 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED); 289 290 if (S_ISDIR(inode->i_mode)) 291 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL; 292 293 if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL) 294 set_inode_flag(inode, FI_PROJ_INHERIT); 295 296 /* Check compression first. */ 297 set_compress_new_inode(sbi, dir, inode, name); 298 299 /* Should enable inline_data after compression set */ 300 if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode)) 301 set_inode_flag(inode, FI_INLINE_DATA); 302 303 if (name && !test_opt(sbi, DISABLE_EXT_IDENTIFY)) 304 set_file_temperature(sbi, inode, name); 305 306 stat_inc_inline_xattr(inode); 307 stat_inc_inline_inode(inode); 308 stat_inc_inline_dir(inode); 309 310 f2fs_set_inode_flags(inode); 311 312 f2fs_init_extent_tree(inode); 313 314 trace_f2fs_new_inode(inode, 0); 315 return inode; 316 317 fail: 318 trace_f2fs_new_inode(inode, err); 319 make_bad_inode(inode); 320 if (nid_free) 321 set_inode_flag(inode, FI_FREE_NID); 322 iput(inode); 323 return ERR_PTR(err); 324 fail_drop: 325 trace_f2fs_new_inode(inode, err); 326 dquot_drop(inode); 327 inode->i_flags |= S_NOQUOTA; 328 if (nid_free) 329 set_inode_flag(inode, FI_FREE_NID); 330 clear_nlink(inode); 331 unlock_new_inode(inode); 332 iput(inode); 333 return ERR_PTR(err); 334 } 335 336 static int f2fs_create(struct user_namespace *mnt_userns, struct inode *dir, 337 struct dentry *dentry, umode_t mode, bool excl) 338 { 339 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 340 struct inode *inode; 341 nid_t ino = 0; 342 int err; 343 344 if (unlikely(f2fs_cp_error(sbi))) 345 return -EIO; 346 if (!f2fs_is_checkpoint_ready(sbi)) 347 return -ENOSPC; 348 349 err = f2fs_dquot_initialize(dir); 350 if (err) 351 return err; 352 353 inode = f2fs_new_inode(mnt_userns, dir, mode, dentry->d_name.name); 354 if (IS_ERR(inode)) 355 return PTR_ERR(inode); 356 357 inode->i_op = &f2fs_file_inode_operations; 358 inode->i_fop = &f2fs_file_operations; 359 inode->i_mapping->a_ops = &f2fs_dblock_aops; 360 ino = inode->i_ino; 361 362 f2fs_lock_op(sbi); 363 err = f2fs_add_link(dentry, inode); 364 if (err) 365 goto out; 366 f2fs_unlock_op(sbi); 367 368 f2fs_alloc_nid_done(sbi, ino); 369 370 d_instantiate_new(dentry, inode); 371 372 if (IS_DIRSYNC(dir)) 373 f2fs_sync_fs(sbi->sb, 1); 374 375 f2fs_balance_fs(sbi, true); 376 return 0; 377 out: 378 f2fs_handle_failed_inode(inode); 379 return err; 380 } 381 382 static int f2fs_link(struct dentry *old_dentry, struct inode *dir, 383 struct dentry *dentry) 384 { 385 struct inode *inode = d_inode(old_dentry); 386 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 387 int err; 388 389 if (unlikely(f2fs_cp_error(sbi))) 390 return -EIO; 391 if (!f2fs_is_checkpoint_ready(sbi)) 392 return -ENOSPC; 393 394 err = fscrypt_prepare_link(old_dentry, dir, dentry); 395 if (err) 396 return err; 397 398 if (is_inode_flag_set(dir, FI_PROJ_INHERIT) && 399 (!projid_eq(F2FS_I(dir)->i_projid, 400 F2FS_I(old_dentry->d_inode)->i_projid))) 401 return -EXDEV; 402 403 err = f2fs_dquot_initialize(dir); 404 if (err) 405 return err; 406 407 f2fs_balance_fs(sbi, true); 408 409 inode->i_ctime = current_time(inode); 410 ihold(inode); 411 412 set_inode_flag(inode, FI_INC_LINK); 413 f2fs_lock_op(sbi); 414 err = f2fs_add_link(dentry, inode); 415 if (err) 416 goto out; 417 f2fs_unlock_op(sbi); 418 419 d_instantiate(dentry, inode); 420 421 if (IS_DIRSYNC(dir)) 422 f2fs_sync_fs(sbi->sb, 1); 423 return 0; 424 out: 425 clear_inode_flag(inode, FI_INC_LINK); 426 iput(inode); 427 f2fs_unlock_op(sbi); 428 return err; 429 } 430 431 struct dentry *f2fs_get_parent(struct dentry *child) 432 { 433 struct page *page; 434 unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page); 435 436 if (!ino) { 437 if (IS_ERR(page)) 438 return ERR_CAST(page); 439 return ERR_PTR(-ENOENT); 440 } 441 return d_obtain_alias(f2fs_iget(child->d_sb, ino)); 442 } 443 444 static int __recover_dot_dentries(struct inode *dir, nid_t pino) 445 { 446 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 447 struct qstr dot = QSTR_INIT(".", 1); 448 struct qstr dotdot = QSTR_INIT("..", 2); 449 struct f2fs_dir_entry *de; 450 struct page *page; 451 int err = 0; 452 453 if (f2fs_readonly(sbi->sb)) { 454 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint", 455 dir->i_ino, pino); 456 return 0; 457 } 458 459 if (!S_ISDIR(dir->i_mode)) { 460 f2fs_err(sbi, "inconsistent inode status, skip recovering inline_dots inode (ino:%lu, i_mode:%u, pino:%u)", 461 dir->i_ino, dir->i_mode, pino); 462 set_sbi_flag(sbi, SBI_NEED_FSCK); 463 return -ENOTDIR; 464 } 465 466 err = f2fs_dquot_initialize(dir); 467 if (err) 468 return err; 469 470 f2fs_balance_fs(sbi, true); 471 472 f2fs_lock_op(sbi); 473 474 de = f2fs_find_entry(dir, &dot, &page); 475 if (de) { 476 f2fs_put_page(page, 0); 477 } else if (IS_ERR(page)) { 478 err = PTR_ERR(page); 479 goto out; 480 } else { 481 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR); 482 if (err) 483 goto out; 484 } 485 486 de = f2fs_find_entry(dir, &dotdot, &page); 487 if (de) 488 f2fs_put_page(page, 0); 489 else if (IS_ERR(page)) 490 err = PTR_ERR(page); 491 else 492 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR); 493 out: 494 if (!err) 495 clear_inode_flag(dir, FI_INLINE_DOTS); 496 497 f2fs_unlock_op(sbi); 498 return err; 499 } 500 501 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 502 unsigned int flags) 503 { 504 struct inode *inode = NULL; 505 struct f2fs_dir_entry *de; 506 struct page *page; 507 struct dentry *new; 508 nid_t ino = -1; 509 int err = 0; 510 unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir)); 511 struct f2fs_filename fname; 512 513 trace_f2fs_lookup_start(dir, dentry, flags); 514 515 if (dentry->d_name.len > F2FS_NAME_LEN) { 516 err = -ENAMETOOLONG; 517 goto out; 518 } 519 520 err = f2fs_prepare_lookup(dir, dentry, &fname); 521 generic_set_encrypted_ci_d_ops(dentry); 522 if (err == -ENOENT) 523 goto out_splice; 524 if (err) 525 goto out; 526 de = __f2fs_find_entry(dir, &fname, &page); 527 f2fs_free_filename(&fname); 528 529 if (!de) { 530 if (IS_ERR(page)) { 531 err = PTR_ERR(page); 532 goto out; 533 } 534 err = -ENOENT; 535 goto out_splice; 536 } 537 538 ino = le32_to_cpu(de->ino); 539 f2fs_put_page(page, 0); 540 541 inode = f2fs_iget(dir->i_sb, ino); 542 if (IS_ERR(inode)) { 543 err = PTR_ERR(inode); 544 goto out; 545 } 546 547 if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) { 548 err = __recover_dot_dentries(dir, root_ino); 549 if (err) 550 goto out_iput; 551 } 552 553 if (f2fs_has_inline_dots(inode)) { 554 err = __recover_dot_dentries(inode, dir->i_ino); 555 if (err) 556 goto out_iput; 557 } 558 if (IS_ENCRYPTED(dir) && 559 (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) && 560 !fscrypt_has_permitted_context(dir, inode)) { 561 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu", 562 dir->i_ino, inode->i_ino); 563 err = -EPERM; 564 goto out_iput; 565 } 566 out_splice: 567 #if IS_ENABLED(CONFIG_UNICODE) 568 if (!inode && IS_CASEFOLDED(dir)) { 569 /* Eventually we want to call d_add_ci(dentry, NULL) 570 * for negative dentries in the encoding case as 571 * well. For now, prevent the negative dentry 572 * from being cached. 573 */ 574 trace_f2fs_lookup_end(dir, dentry, ino, err); 575 return NULL; 576 } 577 #endif 578 new = d_splice_alias(inode, dentry); 579 err = PTR_ERR_OR_ZERO(new); 580 trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err); 581 return new; 582 out_iput: 583 iput(inode); 584 out: 585 trace_f2fs_lookup_end(dir, dentry, ino, err); 586 return ERR_PTR(err); 587 } 588 589 static int f2fs_unlink(struct inode *dir, struct dentry *dentry) 590 { 591 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 592 struct inode *inode = d_inode(dentry); 593 struct f2fs_dir_entry *de; 594 struct page *page; 595 int err; 596 597 trace_f2fs_unlink_enter(dir, dentry); 598 599 if (unlikely(f2fs_cp_error(sbi))) { 600 err = -EIO; 601 goto fail; 602 } 603 604 err = f2fs_dquot_initialize(dir); 605 if (err) 606 goto fail; 607 err = f2fs_dquot_initialize(inode); 608 if (err) 609 goto fail; 610 611 de = f2fs_find_entry(dir, &dentry->d_name, &page); 612 if (!de) { 613 if (IS_ERR(page)) 614 err = PTR_ERR(page); 615 goto fail; 616 } 617 618 f2fs_balance_fs(sbi, true); 619 620 f2fs_lock_op(sbi); 621 err = f2fs_acquire_orphan_inode(sbi); 622 if (err) { 623 f2fs_unlock_op(sbi); 624 f2fs_put_page(page, 0); 625 goto fail; 626 } 627 f2fs_delete_entry(de, page, dir, inode); 628 f2fs_unlock_op(sbi); 629 630 #if IS_ENABLED(CONFIG_UNICODE) 631 /* VFS negative dentries are incompatible with Encoding and 632 * Case-insensitiveness. Eventually we'll want avoid 633 * invalidating the dentries here, alongside with returning the 634 * negative dentries at f2fs_lookup(), when it is better 635 * supported by the VFS for the CI case. 636 */ 637 if (IS_CASEFOLDED(dir)) 638 d_invalidate(dentry); 639 #endif 640 if (IS_DIRSYNC(dir)) 641 f2fs_sync_fs(sbi->sb, 1); 642 fail: 643 trace_f2fs_unlink_exit(inode, err); 644 return err; 645 } 646 647 static const char *f2fs_get_link(struct dentry *dentry, 648 struct inode *inode, 649 struct delayed_call *done) 650 { 651 const char *link = page_get_link(dentry, inode, done); 652 653 if (!IS_ERR(link) && !*link) { 654 /* this is broken symlink case */ 655 do_delayed_call(done); 656 clear_delayed_call(done); 657 link = ERR_PTR(-ENOENT); 658 } 659 return link; 660 } 661 662 static int f2fs_symlink(struct user_namespace *mnt_userns, struct inode *dir, 663 struct dentry *dentry, const char *symname) 664 { 665 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 666 struct inode *inode; 667 size_t len = strlen(symname); 668 struct fscrypt_str disk_link; 669 int err; 670 671 if (unlikely(f2fs_cp_error(sbi))) 672 return -EIO; 673 if (!f2fs_is_checkpoint_ready(sbi)) 674 return -ENOSPC; 675 676 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, 677 &disk_link); 678 if (err) 679 return err; 680 681 err = f2fs_dquot_initialize(dir); 682 if (err) 683 return err; 684 685 inode = f2fs_new_inode(mnt_userns, dir, S_IFLNK | S_IRWXUGO, NULL); 686 if (IS_ERR(inode)) 687 return PTR_ERR(inode); 688 689 if (IS_ENCRYPTED(inode)) 690 inode->i_op = &f2fs_encrypted_symlink_inode_operations; 691 else 692 inode->i_op = &f2fs_symlink_inode_operations; 693 inode_nohighmem(inode); 694 inode->i_mapping->a_ops = &f2fs_dblock_aops; 695 696 f2fs_lock_op(sbi); 697 err = f2fs_add_link(dentry, inode); 698 if (err) 699 goto out_f2fs_handle_failed_inode; 700 f2fs_unlock_op(sbi); 701 f2fs_alloc_nid_done(sbi, inode->i_ino); 702 703 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); 704 if (err) 705 goto err_out; 706 707 err = page_symlink(inode, disk_link.name, disk_link.len); 708 709 err_out: 710 d_instantiate_new(dentry, inode); 711 712 /* 713 * Let's flush symlink data in order to avoid broken symlink as much as 714 * possible. Nevertheless, fsyncing is the best way, but there is no 715 * way to get a file descriptor in order to flush that. 716 * 717 * Note that, it needs to do dir->fsync to make this recoverable. 718 * If the symlink path is stored into inline_data, there is no 719 * performance regression. 720 */ 721 if (!err) { 722 filemap_write_and_wait_range(inode->i_mapping, 0, 723 disk_link.len - 1); 724 725 if (IS_DIRSYNC(dir)) 726 f2fs_sync_fs(sbi->sb, 1); 727 } else { 728 f2fs_unlink(dir, dentry); 729 } 730 731 f2fs_balance_fs(sbi, true); 732 goto out_free_encrypted_link; 733 734 out_f2fs_handle_failed_inode: 735 f2fs_handle_failed_inode(inode); 736 out_free_encrypted_link: 737 if (disk_link.name != (unsigned char *)symname) 738 kfree(disk_link.name); 739 return err; 740 } 741 742 static int f2fs_mkdir(struct user_namespace *mnt_userns, struct inode *dir, 743 struct dentry *dentry, umode_t mode) 744 { 745 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 746 struct inode *inode; 747 int err; 748 749 if (unlikely(f2fs_cp_error(sbi))) 750 return -EIO; 751 752 err = f2fs_dquot_initialize(dir); 753 if (err) 754 return err; 755 756 inode = f2fs_new_inode(mnt_userns, dir, S_IFDIR | mode, NULL); 757 if (IS_ERR(inode)) 758 return PTR_ERR(inode); 759 760 inode->i_op = &f2fs_dir_inode_operations; 761 inode->i_fop = &f2fs_dir_operations; 762 inode->i_mapping->a_ops = &f2fs_dblock_aops; 763 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS); 764 765 set_inode_flag(inode, FI_INC_LINK); 766 f2fs_lock_op(sbi); 767 err = f2fs_add_link(dentry, inode); 768 if (err) 769 goto out_fail; 770 f2fs_unlock_op(sbi); 771 772 f2fs_alloc_nid_done(sbi, inode->i_ino); 773 774 d_instantiate_new(dentry, inode); 775 776 if (IS_DIRSYNC(dir)) 777 f2fs_sync_fs(sbi->sb, 1); 778 779 f2fs_balance_fs(sbi, true); 780 return 0; 781 782 out_fail: 783 clear_inode_flag(inode, FI_INC_LINK); 784 f2fs_handle_failed_inode(inode); 785 return err; 786 } 787 788 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) 789 { 790 struct inode *inode = d_inode(dentry); 791 792 if (f2fs_empty_dir(inode)) 793 return f2fs_unlink(dir, dentry); 794 return -ENOTEMPTY; 795 } 796 797 static int f2fs_mknod(struct user_namespace *mnt_userns, struct inode *dir, 798 struct dentry *dentry, umode_t mode, dev_t rdev) 799 { 800 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 801 struct inode *inode; 802 int err = 0; 803 804 if (unlikely(f2fs_cp_error(sbi))) 805 return -EIO; 806 if (!f2fs_is_checkpoint_ready(sbi)) 807 return -ENOSPC; 808 809 err = f2fs_dquot_initialize(dir); 810 if (err) 811 return err; 812 813 inode = f2fs_new_inode(mnt_userns, dir, mode, NULL); 814 if (IS_ERR(inode)) 815 return PTR_ERR(inode); 816 817 init_special_inode(inode, inode->i_mode, rdev); 818 inode->i_op = &f2fs_special_inode_operations; 819 820 f2fs_lock_op(sbi); 821 err = f2fs_add_link(dentry, inode); 822 if (err) 823 goto out; 824 f2fs_unlock_op(sbi); 825 826 f2fs_alloc_nid_done(sbi, inode->i_ino); 827 828 d_instantiate_new(dentry, inode); 829 830 if (IS_DIRSYNC(dir)) 831 f2fs_sync_fs(sbi->sb, 1); 832 833 f2fs_balance_fs(sbi, true); 834 return 0; 835 out: 836 f2fs_handle_failed_inode(inode); 837 return err; 838 } 839 840 static int __f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir, 841 struct file *file, umode_t mode, bool is_whiteout, 842 struct inode **new_inode) 843 { 844 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 845 struct inode *inode; 846 int err; 847 848 err = f2fs_dquot_initialize(dir); 849 if (err) 850 return err; 851 852 inode = f2fs_new_inode(mnt_userns, dir, mode, NULL); 853 if (IS_ERR(inode)) 854 return PTR_ERR(inode); 855 856 if (is_whiteout) { 857 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV); 858 inode->i_op = &f2fs_special_inode_operations; 859 } else { 860 inode->i_op = &f2fs_file_inode_operations; 861 inode->i_fop = &f2fs_file_operations; 862 inode->i_mapping->a_ops = &f2fs_dblock_aops; 863 } 864 865 f2fs_lock_op(sbi); 866 err = f2fs_acquire_orphan_inode(sbi); 867 if (err) 868 goto out; 869 870 err = f2fs_do_tmpfile(inode, dir); 871 if (err) 872 goto release_out; 873 874 /* 875 * add this non-linked tmpfile to orphan list, in this way we could 876 * remove all unused data of tmpfile after abnormal power-off. 877 */ 878 f2fs_add_orphan_inode(inode); 879 f2fs_alloc_nid_done(sbi, inode->i_ino); 880 881 if (is_whiteout) { 882 f2fs_i_links_write(inode, false); 883 884 spin_lock(&inode->i_lock); 885 inode->i_state |= I_LINKABLE; 886 spin_unlock(&inode->i_lock); 887 } else { 888 if (file) 889 d_tmpfile(file, inode); 890 else 891 f2fs_i_links_write(inode, false); 892 } 893 /* link_count was changed by d_tmpfile as well. */ 894 f2fs_unlock_op(sbi); 895 unlock_new_inode(inode); 896 897 if (new_inode) 898 *new_inode = inode; 899 900 f2fs_balance_fs(sbi, true); 901 return 0; 902 903 release_out: 904 f2fs_release_orphan_inode(sbi); 905 out: 906 f2fs_handle_failed_inode(inode); 907 return err; 908 } 909 910 static int f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir, 911 struct file *file, umode_t mode) 912 { 913 struct f2fs_sb_info *sbi = F2FS_I_SB(dir); 914 int err; 915 916 if (unlikely(f2fs_cp_error(sbi))) 917 return -EIO; 918 if (!f2fs_is_checkpoint_ready(sbi)) 919 return -ENOSPC; 920 921 err = __f2fs_tmpfile(mnt_userns, dir, file, mode, false, NULL); 922 923 return finish_open_simple(file, err); 924 } 925 926 static int f2fs_create_whiteout(struct user_namespace *mnt_userns, 927 struct inode *dir, struct inode **whiteout) 928 { 929 if (unlikely(f2fs_cp_error(F2FS_I_SB(dir)))) 930 return -EIO; 931 932 return __f2fs_tmpfile(mnt_userns, dir, NULL, 933 S_IFCHR | WHITEOUT_MODE, true, whiteout); 934 } 935 936 int f2fs_get_tmpfile(struct user_namespace *mnt_userns, struct inode *dir, 937 struct inode **new_inode) 938 { 939 return __f2fs_tmpfile(mnt_userns, dir, NULL, S_IFREG, false, new_inode); 940 } 941 942 static int f2fs_rename(struct user_namespace *mnt_userns, struct inode *old_dir, 943 struct dentry *old_dentry, struct inode *new_dir, 944 struct dentry *new_dentry, unsigned int flags) 945 { 946 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 947 struct inode *old_inode = d_inode(old_dentry); 948 struct inode *new_inode = d_inode(new_dentry); 949 struct inode *whiteout = NULL; 950 struct page *old_dir_page = NULL; 951 struct page *old_page, *new_page = NULL; 952 struct f2fs_dir_entry *old_dir_entry = NULL; 953 struct f2fs_dir_entry *old_entry; 954 struct f2fs_dir_entry *new_entry; 955 int err; 956 957 if (unlikely(f2fs_cp_error(sbi))) 958 return -EIO; 959 if (!f2fs_is_checkpoint_ready(sbi)) 960 return -ENOSPC; 961 962 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 963 (!projid_eq(F2FS_I(new_dir)->i_projid, 964 F2FS_I(old_dentry->d_inode)->i_projid))) 965 return -EXDEV; 966 967 /* 968 * If new_inode is null, the below renaming flow will 969 * add a link in old_dir which can conver inline_dir. 970 * After then, if we failed to get the entry due to other 971 * reasons like ENOMEM, we had to remove the new entry. 972 * Instead of adding such the error handling routine, let's 973 * simply convert first here. 974 */ 975 if (old_dir == new_dir && !new_inode) { 976 err = f2fs_try_convert_inline_dir(old_dir, new_dentry); 977 if (err) 978 return err; 979 } 980 981 if (flags & RENAME_WHITEOUT) { 982 err = f2fs_create_whiteout(mnt_userns, old_dir, &whiteout); 983 if (err) 984 return err; 985 } 986 987 err = f2fs_dquot_initialize(old_dir); 988 if (err) 989 goto out; 990 991 err = f2fs_dquot_initialize(new_dir); 992 if (err) 993 goto out; 994 995 if (new_inode) { 996 err = f2fs_dquot_initialize(new_inode); 997 if (err) 998 goto out; 999 } 1000 1001 err = -ENOENT; 1002 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 1003 if (!old_entry) { 1004 if (IS_ERR(old_page)) 1005 err = PTR_ERR(old_page); 1006 goto out; 1007 } 1008 1009 if (S_ISDIR(old_inode->i_mode)) { 1010 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); 1011 if (!old_dir_entry) { 1012 if (IS_ERR(old_dir_page)) 1013 err = PTR_ERR(old_dir_page); 1014 goto out_old; 1015 } 1016 } 1017 1018 if (new_inode) { 1019 1020 err = -ENOTEMPTY; 1021 if (old_dir_entry && !f2fs_empty_dir(new_inode)) 1022 goto out_dir; 1023 1024 err = -ENOENT; 1025 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, 1026 &new_page); 1027 if (!new_entry) { 1028 if (IS_ERR(new_page)) 1029 err = PTR_ERR(new_page); 1030 goto out_dir; 1031 } 1032 1033 f2fs_balance_fs(sbi, true); 1034 1035 f2fs_lock_op(sbi); 1036 1037 err = f2fs_acquire_orphan_inode(sbi); 1038 if (err) 1039 goto put_out_dir; 1040 1041 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 1042 new_page = NULL; 1043 1044 new_inode->i_ctime = current_time(new_inode); 1045 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1046 if (old_dir_entry) 1047 f2fs_i_links_write(new_inode, false); 1048 f2fs_i_links_write(new_inode, false); 1049 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1050 1051 if (!new_inode->i_nlink) 1052 f2fs_add_orphan_inode(new_inode); 1053 else 1054 f2fs_release_orphan_inode(sbi); 1055 } else { 1056 f2fs_balance_fs(sbi, true); 1057 1058 f2fs_lock_op(sbi); 1059 1060 err = f2fs_add_link(new_dentry, old_inode); 1061 if (err) { 1062 f2fs_unlock_op(sbi); 1063 goto out_dir; 1064 } 1065 1066 if (old_dir_entry) 1067 f2fs_i_links_write(new_dir, true); 1068 } 1069 1070 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1071 if (!old_dir_entry || whiteout) 1072 file_lost_pino(old_inode); 1073 else 1074 /* adjust dir's i_pino to pass fsck check */ 1075 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1076 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1077 1078 old_inode->i_ctime = current_time(old_inode); 1079 f2fs_mark_inode_dirty_sync(old_inode, false); 1080 1081 f2fs_delete_entry(old_entry, old_page, old_dir, NULL); 1082 old_page = NULL; 1083 1084 if (whiteout) { 1085 set_inode_flag(whiteout, FI_INC_LINK); 1086 err = f2fs_add_link(old_dentry, whiteout); 1087 if (err) 1088 goto put_out_dir; 1089 1090 spin_lock(&whiteout->i_lock); 1091 whiteout->i_state &= ~I_LINKABLE; 1092 spin_unlock(&whiteout->i_lock); 1093 1094 iput(whiteout); 1095 } 1096 1097 if (old_dir_entry) { 1098 if (old_dir != new_dir && !whiteout) 1099 f2fs_set_link(old_inode, old_dir_entry, 1100 old_dir_page, new_dir); 1101 else 1102 f2fs_put_page(old_dir_page, 0); 1103 f2fs_i_links_write(old_dir, false); 1104 } 1105 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1106 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1107 if (S_ISDIR(old_inode->i_mode)) 1108 f2fs_add_ino_entry(sbi, old_inode->i_ino, 1109 TRANS_DIR_INO); 1110 } 1111 1112 f2fs_unlock_op(sbi); 1113 1114 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1115 f2fs_sync_fs(sbi->sb, 1); 1116 1117 f2fs_update_time(sbi, REQ_TIME); 1118 return 0; 1119 1120 put_out_dir: 1121 f2fs_unlock_op(sbi); 1122 f2fs_put_page(new_page, 0); 1123 out_dir: 1124 if (old_dir_entry) 1125 f2fs_put_page(old_dir_page, 0); 1126 out_old: 1127 f2fs_put_page(old_page, 0); 1128 out: 1129 iput(whiteout); 1130 return err; 1131 } 1132 1133 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, 1134 struct inode *new_dir, struct dentry *new_dentry) 1135 { 1136 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); 1137 struct inode *old_inode = d_inode(old_dentry); 1138 struct inode *new_inode = d_inode(new_dentry); 1139 struct page *old_dir_page, *new_dir_page; 1140 struct page *old_page, *new_page; 1141 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; 1142 struct f2fs_dir_entry *old_entry, *new_entry; 1143 int old_nlink = 0, new_nlink = 0; 1144 int err; 1145 1146 if (unlikely(f2fs_cp_error(sbi))) 1147 return -EIO; 1148 if (!f2fs_is_checkpoint_ready(sbi)) 1149 return -ENOSPC; 1150 1151 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1152 !projid_eq(F2FS_I(new_dir)->i_projid, 1153 F2FS_I(old_dentry->d_inode)->i_projid)) || 1154 (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && 1155 !projid_eq(F2FS_I(old_dir)->i_projid, 1156 F2FS_I(new_dentry->d_inode)->i_projid))) 1157 return -EXDEV; 1158 1159 err = f2fs_dquot_initialize(old_dir); 1160 if (err) 1161 goto out; 1162 1163 err = f2fs_dquot_initialize(new_dir); 1164 if (err) 1165 goto out; 1166 1167 err = -ENOENT; 1168 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); 1169 if (!old_entry) { 1170 if (IS_ERR(old_page)) 1171 err = PTR_ERR(old_page); 1172 goto out; 1173 } 1174 1175 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); 1176 if (!new_entry) { 1177 if (IS_ERR(new_page)) 1178 err = PTR_ERR(new_page); 1179 goto out_old; 1180 } 1181 1182 /* prepare for updating ".." directory entry info later */ 1183 if (old_dir != new_dir) { 1184 if (S_ISDIR(old_inode->i_mode)) { 1185 old_dir_entry = f2fs_parent_dir(old_inode, 1186 &old_dir_page); 1187 if (!old_dir_entry) { 1188 if (IS_ERR(old_dir_page)) 1189 err = PTR_ERR(old_dir_page); 1190 goto out_new; 1191 } 1192 } 1193 1194 if (S_ISDIR(new_inode->i_mode)) { 1195 new_dir_entry = f2fs_parent_dir(new_inode, 1196 &new_dir_page); 1197 if (!new_dir_entry) { 1198 if (IS_ERR(new_dir_page)) 1199 err = PTR_ERR(new_dir_page); 1200 goto out_old_dir; 1201 } 1202 } 1203 } 1204 1205 /* 1206 * If cross rename between file and directory those are not 1207 * in the same directory, we will inc nlink of file's parent 1208 * later, so we should check upper boundary of its nlink. 1209 */ 1210 if ((!old_dir_entry || !new_dir_entry) && 1211 old_dir_entry != new_dir_entry) { 1212 old_nlink = old_dir_entry ? -1 : 1; 1213 new_nlink = -old_nlink; 1214 err = -EMLINK; 1215 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) || 1216 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX)) 1217 goto out_new_dir; 1218 } 1219 1220 f2fs_balance_fs(sbi, true); 1221 1222 f2fs_lock_op(sbi); 1223 1224 /* update ".." directory entry info of old dentry */ 1225 if (old_dir_entry) 1226 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); 1227 1228 /* update ".." directory entry info of new dentry */ 1229 if (new_dir_entry) 1230 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir); 1231 1232 /* update directory entry info of old dir inode */ 1233 f2fs_set_link(old_dir, old_entry, old_page, new_inode); 1234 1235 f2fs_down_write(&F2FS_I(old_inode)->i_sem); 1236 if (!old_dir_entry) 1237 file_lost_pino(old_inode); 1238 else 1239 /* adjust dir's i_pino to pass fsck check */ 1240 f2fs_i_pino_write(old_inode, new_dir->i_ino); 1241 f2fs_up_write(&F2FS_I(old_inode)->i_sem); 1242 1243 old_dir->i_ctime = current_time(old_dir); 1244 if (old_nlink) { 1245 f2fs_down_write(&F2FS_I(old_dir)->i_sem); 1246 f2fs_i_links_write(old_dir, old_nlink > 0); 1247 f2fs_up_write(&F2FS_I(old_dir)->i_sem); 1248 } 1249 f2fs_mark_inode_dirty_sync(old_dir, false); 1250 1251 /* update directory entry info of new dir inode */ 1252 f2fs_set_link(new_dir, new_entry, new_page, old_inode); 1253 1254 f2fs_down_write(&F2FS_I(new_inode)->i_sem); 1255 if (!new_dir_entry) 1256 file_lost_pino(new_inode); 1257 else 1258 /* adjust dir's i_pino to pass fsck check */ 1259 f2fs_i_pino_write(new_inode, old_dir->i_ino); 1260 f2fs_up_write(&F2FS_I(new_inode)->i_sem); 1261 1262 new_dir->i_ctime = current_time(new_dir); 1263 if (new_nlink) { 1264 f2fs_down_write(&F2FS_I(new_dir)->i_sem); 1265 f2fs_i_links_write(new_dir, new_nlink > 0); 1266 f2fs_up_write(&F2FS_I(new_dir)->i_sem); 1267 } 1268 f2fs_mark_inode_dirty_sync(new_dir, false); 1269 1270 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { 1271 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO); 1272 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); 1273 } 1274 1275 f2fs_unlock_op(sbi); 1276 1277 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) 1278 f2fs_sync_fs(sbi->sb, 1); 1279 1280 f2fs_update_time(sbi, REQ_TIME); 1281 return 0; 1282 out_new_dir: 1283 if (new_dir_entry) { 1284 f2fs_put_page(new_dir_page, 0); 1285 } 1286 out_old_dir: 1287 if (old_dir_entry) { 1288 f2fs_put_page(old_dir_page, 0); 1289 } 1290 out_new: 1291 f2fs_put_page(new_page, 0); 1292 out_old: 1293 f2fs_put_page(old_page, 0); 1294 out: 1295 return err; 1296 } 1297 1298 static int f2fs_rename2(struct user_namespace *mnt_userns, 1299 struct inode *old_dir, struct dentry *old_dentry, 1300 struct inode *new_dir, struct dentry *new_dentry, 1301 unsigned int flags) 1302 { 1303 int err; 1304 1305 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) 1306 return -EINVAL; 1307 1308 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry, 1309 flags); 1310 if (err) 1311 return err; 1312 1313 if (flags & RENAME_EXCHANGE) { 1314 return f2fs_cross_rename(old_dir, old_dentry, 1315 new_dir, new_dentry); 1316 } 1317 /* 1318 * VFS has already handled the new dentry existence case, 1319 * here, we just deal with "RENAME_NOREPLACE" as regular rename. 1320 */ 1321 return f2fs_rename(mnt_userns, old_dir, old_dentry, 1322 new_dir, new_dentry, flags); 1323 } 1324 1325 static const char *f2fs_encrypted_get_link(struct dentry *dentry, 1326 struct inode *inode, 1327 struct delayed_call *done) 1328 { 1329 struct page *page; 1330 const char *target; 1331 1332 if (!dentry) 1333 return ERR_PTR(-ECHILD); 1334 1335 page = read_mapping_page(inode->i_mapping, 0, NULL); 1336 if (IS_ERR(page)) 1337 return ERR_CAST(page); 1338 1339 target = fscrypt_get_symlink(inode, page_address(page), 1340 inode->i_sb->s_blocksize, done); 1341 put_page(page); 1342 return target; 1343 } 1344 1345 static int f2fs_encrypted_symlink_getattr(struct user_namespace *mnt_userns, 1346 const struct path *path, 1347 struct kstat *stat, u32 request_mask, 1348 unsigned int query_flags) 1349 { 1350 f2fs_getattr(mnt_userns, path, stat, request_mask, query_flags); 1351 1352 return fscrypt_symlink_getattr(path, stat); 1353 } 1354 1355 const struct inode_operations f2fs_encrypted_symlink_inode_operations = { 1356 .get_link = f2fs_encrypted_get_link, 1357 .getattr = f2fs_encrypted_symlink_getattr, 1358 .setattr = f2fs_setattr, 1359 .listxattr = f2fs_listxattr, 1360 }; 1361 1362 const struct inode_operations f2fs_dir_inode_operations = { 1363 .create = f2fs_create, 1364 .lookup = f2fs_lookup, 1365 .link = f2fs_link, 1366 .unlink = f2fs_unlink, 1367 .symlink = f2fs_symlink, 1368 .mkdir = f2fs_mkdir, 1369 .rmdir = f2fs_rmdir, 1370 .mknod = f2fs_mknod, 1371 .rename = f2fs_rename2, 1372 .tmpfile = f2fs_tmpfile, 1373 .getattr = f2fs_getattr, 1374 .setattr = f2fs_setattr, 1375 .get_inode_acl = f2fs_get_acl, 1376 .set_acl = f2fs_set_acl, 1377 .listxattr = f2fs_listxattr, 1378 .fiemap = f2fs_fiemap, 1379 .fileattr_get = f2fs_fileattr_get, 1380 .fileattr_set = f2fs_fileattr_set, 1381 }; 1382 1383 const struct inode_operations f2fs_symlink_inode_operations = { 1384 .get_link = f2fs_get_link, 1385 .getattr = f2fs_getattr, 1386 .setattr = f2fs_setattr, 1387 .listxattr = f2fs_listxattr, 1388 }; 1389 1390 const struct inode_operations f2fs_special_inode_operations = { 1391 .getattr = f2fs_getattr, 1392 .setattr = f2fs_setattr, 1393 .get_inode_acl = f2fs_get_acl, 1394 .set_acl = f2fs_set_acl, 1395 .listxattr = f2fs_listxattr, 1396 }; 1397