fs/f2fs/namei.c

   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 struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
  26 {
  27         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
  28         nid_t ino;
  29         struct inode *inode;
  30         bool nid_free = false;
  31         int xattr_size = 0;
  32         int err;
  33
  34         inode = new_inode(dir->i_sb);
  35         if (!inode)
  36                 return ERR_PTR(-ENOMEM);
  37
  38         f2fs_lock_op(sbi);
  39         if (!f2fs_alloc_nid(sbi, &ino)) {
  40                 f2fs_unlock_op(sbi);
  41                 err = -ENOSPC;
  42                 goto fail;
  43         }
  44         f2fs_unlock_op(sbi);
  45
  46         nid_free = true;
  47
  48         inode_init_owner(inode, dir, mode);
  49
  50         inode->i_ino = ino;
  51         inode->i_blocks = 0;
  52         inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
  53         F2FS_I(inode)->i_crtime = inode->i_mtime;
  54         inode->i_generation = prandom_u32();
  55
  56         if (S_ISDIR(inode->i_mode))
  57                 F2FS_I(inode)->i_current_depth = 1;
  58
  59         err = insert_inode_locked(inode);
  60         if (err) {
  61                 err = -EINVAL;
  62                 goto fail;
  63         }
  64
  65         if (f2fs_sb_has_project_quota(sbi) &&
  66                 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL))
  67                 F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid;
  68         else
  69                 F2FS_I(inode)->i_projid = make_kprojid(&init_user_ns,
  70                                                         F2FS_DEF_PROJID);
  71
  72         err = dquot_initialize(inode);
  73         if (err)
  74                 goto fail_drop;
  75
  76         set_inode_flag(inode, FI_NEW_INODE);
  77
  78         if (f2fs_may_encrypt(dir, inode))
  79                 f2fs_set_encrypted_inode(inode);
  80
  81         if (f2fs_sb_has_extra_attr(sbi)) {
  82                 set_inode_flag(inode, FI_EXTRA_ATTR);
  83                 F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE;
  84         }
  85
  86         if (test_opt(sbi, INLINE_XATTR))
  87                 set_inode_flag(inode, FI_INLINE_XATTR);
  88
  89         if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
  90                 set_inode_flag(inode, FI_INLINE_DATA);
  91         if (f2fs_may_inline_dentry(inode))
  92                 set_inode_flag(inode, FI_INLINE_DENTRY);
  93
  94         if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
  95                 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
  96                 if (f2fs_has_inline_xattr(inode))
  97                         xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
  98                 /* Otherwise, will be 0 */
  99         } else if (f2fs_has_inline_xattr(inode) ||
 100                                 f2fs_has_inline_dentry(inode)) {
 101                 xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
 102         }
 103         F2FS_I(inode)->i_inline_xattr_size = xattr_size;
 104
 105         f2fs_init_extent_tree(inode, NULL);
 106
 107         stat_inc_inline_xattr(inode);
 108         stat_inc_inline_inode(inode);
 109         stat_inc_inline_dir(inode);
 110
 111         F2FS_I(inode)->i_flags =
 112                 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
 113
 114         if (S_ISDIR(inode->i_mode))
 115                 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL;
 116
 117         if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
 118                 set_inode_flag(inode, FI_PROJ_INHERIT);
 119
 120         if (f2fs_sb_has_compression(sbi)) {
 121                 /* Inherit the compression flag in directory */
 122                 if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) &&
 123                                         f2fs_may_compress(inode))
 124                         set_compress_context(inode);
 125         }
 126
 127         f2fs_set_inode_flags(inode);
 128
 129         trace_f2fs_new_inode(inode, 0);
 130         return inode;
 131
 132 fail:
 133         trace_f2fs_new_inode(inode, err);
 134         make_bad_inode(inode);
 135         if (nid_free)
 136                 set_inode_flag(inode, FI_FREE_NID);
 137         iput(inode);
 138         return ERR_PTR(err);
 139 fail_drop:
 140         trace_f2fs_new_inode(inode, err);
 141         dquot_drop(inode);
 142         inode->i_flags |= S_NOQUOTA;
 143         if (nid_free)
 144                 set_inode_flag(inode, FI_FREE_NID);
 145         clear_nlink(inode);
 146         unlock_new_inode(inode);
 147         iput(inode);
 148         return ERR_PTR(err);
 149 }
 150
 151 static inline int is_extension_exist(const unsigned char *s, const char *sub)
 152 {
 153         size_t slen = strlen(s);
 154         size_t sublen = strlen(sub);
 155         int i;
 156
 157         if (sublen == 1 && *sub == '*')
 158                 return 1;
 159
 160         /*
 161          * filename format of multimedia file should be defined as:
 162          * "filename + '.' + extension + (optional: '.' + temp extension)".
 163          */
 164         if (slen < sublen + 2)
 165                 return 0;
 166
 167         for (i = 1; i < slen - sublen; i++) {
 168                 if (s[i] != '.')
 169                         continue;
 170                 if (!strncasecmp(s + i + 1, sub, sublen))
 171                         return 1;
 172         }
 173
 174         return 0;
 175 }
 176
 177 /*
 178  * Set file's temperature for hot/cold data separation
 179  */
 180 static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
 181                 const unsigned char *name)
 182 {
 183         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 184         int i, cold_count, hot_count;
 185
 186         down_read(&sbi->sb_lock);
 187
 188         cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 189         hot_count = sbi->raw_super->hot_ext_count;
 190
 191         for (i = 0; i < cold_count + hot_count; i++) {
 192                 if (is_extension_exist(name, extlist[i]))
 193                         break;
 194         }
 195
 196         up_read(&sbi->sb_lock);
 197
 198         if (i == cold_count + hot_count)
 199                 return;
 200
 201         if (i < cold_count)
 202                 file_set_cold(inode);
 203         else
 204                 file_set_hot(inode);
 205 }
 206
 207 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
 208                                                         bool hot, bool set)
 209 {
 210         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 211         int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 212         int hot_count = sbi->raw_super->hot_ext_count;
 213         int total_count = cold_count + hot_count;
 214         int start, count;
 215         int i;
 216
 217         if (set) {
 218                 if (total_count == F2FS_MAX_EXTENSION)
 219                         return -EINVAL;
 220         } else {
 221                 if (!hot && !cold_count)
 222                         return -EINVAL;
 223                 if (hot && !hot_count)
 224                         return -EINVAL;
 225         }
 226
 227         if (hot) {
 228                 start = cold_count;
 229                 count = total_count;
 230         } else {
 231                 start = 0;
 232                 count = cold_count;
 233         }
 234
 235         for (i = start; i < count; i++) {
 236                 if (strcmp(name, extlist[i]))
 237                         continue;
 238
 239                 if (set)
 240                         return -EINVAL;
 241
 242                 memcpy(extlist[i], extlist[i + 1],
 243                                 F2FS_EXTENSION_LEN * (total_count - i - 1));
 244                 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN);
 245                 if (hot)
 246                         sbi->raw_super->hot_ext_count = hot_count - 1;
 247                 else
 248                         sbi->raw_super->extension_count =
 249                                                 cpu_to_le32(cold_count - 1);
 250                 return 0;
 251         }
 252
 253         if (!set)
 254                 return -EINVAL;
 255
 256         if (hot) {
 257                 memcpy(extlist[count], name, strlen(name));
 258                 sbi->raw_super->hot_ext_count = hot_count + 1;
 259         } else {
 260                 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN];
 261
 262                 memcpy(buf, &extlist[cold_count],
 263                                 F2FS_EXTENSION_LEN * hot_count);
 264                 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN);
 265                 memcpy(extlist[cold_count], name, strlen(name));
 266                 memcpy(&extlist[cold_count + 1], buf,
 267                                 F2FS_EXTENSION_LEN * hot_count);
 268                 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1);
 269         }
 270         return 0;
 271 }
 272
 273 static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
 274                                                 const unsigned char *name)
 275 {
 276         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 277         unsigned char (*ext)[F2FS_EXTENSION_LEN];
 278         unsigned int ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
 279         int i, cold_count, hot_count;
 280
 281         if (!f2fs_sb_has_compression(sbi) ||
 282                         is_inode_flag_set(inode, FI_COMPRESSED_FILE) ||
 283                         F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
 284                         !f2fs_may_compress(inode))
 285                 return;
 286
 287         down_read(&sbi->sb_lock);
 288
 289         cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 290         hot_count = sbi->raw_super->hot_ext_count;
 291
 292         for (i = cold_count; i < cold_count + hot_count; i++) {
 293                 if (is_extension_exist(name, extlist[i])) {
 294                         up_read(&sbi->sb_lock);
 295                         return;
 296                 }
 297         }
 298
 299         up_read(&sbi->sb_lock);
 300
 301         ext = F2FS_OPTION(sbi).extensions;
 302
 303         for (i = 0; i < ext_cnt; i++) {
 304                 if (!is_extension_exist(name, ext[i]))
 305                         continue;
 306
 307                 set_compress_context(inode);
 308                 return;
 309         }
 310 }
 311
 312 static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 313                                                 bool excl)
 314 {
 315         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 316         struct inode *inode;
 317         nid_t ino = 0;
 318         int err;
 319
 320         if (unlikely(f2fs_cp_error(sbi)))
 321                 return -EIO;
 322         if (!f2fs_is_checkpoint_ready(sbi))
 323                 return -ENOSPC;
 324
 325         err = dquot_initialize(dir);
 326         if (err)
 327                 return err;
 328
 329         inode = f2fs_new_inode(dir, mode);
 330         if (IS_ERR(inode))
 331                 return PTR_ERR(inode);
 332
 333         if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
 334                 set_file_temperature(sbi, inode, dentry->d_name.name);
 335
 336         set_compress_inode(sbi, inode, dentry->d_name.name);
 337
 338         inode->i_op = &f2fs_file_inode_operations;
 339         inode->i_fop = &f2fs_file_operations;
 340         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 341         ino = inode->i_ino;
 342
 343         f2fs_lock_op(sbi);
 344         err = f2fs_add_link(dentry, inode);
 345         if (err)
 346                 goto out;
 347         f2fs_unlock_op(sbi);
 348
 349         f2fs_alloc_nid_done(sbi, ino);
 350
 351         d_instantiate_new(dentry, inode);
 352
 353         if (IS_DIRSYNC(dir))
 354                 f2fs_sync_fs(sbi->sb, 1);
 355
 356         f2fs_balance_fs(sbi, true);
 357         return 0;
 358 out:
 359         f2fs_handle_failed_inode(inode);
 360         return err;
 361 }
 362
 363 static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
 364                 struct dentry *dentry)
 365 {
 366         struct inode *inode = d_inode(old_dentry);
 367         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 368         int err;
 369
 370         if (unlikely(f2fs_cp_error(sbi)))
 371                 return -EIO;
 372         if (!f2fs_is_checkpoint_ready(sbi))
 373                 return -ENOSPC;
 374
 375         err = fscrypt_prepare_link(old_dentry, dir, dentry);
 376         if (err)
 377                 return err;
 378
 379         if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
 380                         (!projid_eq(F2FS_I(dir)->i_projid,
 381                         F2FS_I(old_dentry->d_inode)->i_projid)))
 382                 return -EXDEV;
 383
 384         err = dquot_initialize(dir);
 385         if (err)
 386                 return err;
 387
 388         f2fs_balance_fs(sbi, true);
 389
 390         inode->i_ctime = current_time(inode);
 391         ihold(inode);
 392
 393         set_inode_flag(inode, FI_INC_LINK);
 394         f2fs_lock_op(sbi);
 395         err = f2fs_add_link(dentry, inode);
 396         if (err)
 397                 goto out;
 398         f2fs_unlock_op(sbi);
 399
 400         d_instantiate(dentry, inode);
 401
 402         if (IS_DIRSYNC(dir))
 403                 f2fs_sync_fs(sbi->sb, 1);
 404         return 0;
 405 out:
 406         clear_inode_flag(inode, FI_INC_LINK);
 407         iput(inode);
 408         f2fs_unlock_op(sbi);
 409         return err;
 410 }
 411
 412 struct dentry *f2fs_get_parent(struct dentry *child)
 413 {
 414         struct qstr dotdot = QSTR_INIT("..", 2);
 415         struct page *page;
 416         unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot, &page);
 417         if (!ino) {
 418                 if (IS_ERR(page))
 419                         return ERR_CAST(page);
 420                 return ERR_PTR(-ENOENT);
 421         }
 422         return d_obtain_alias(f2fs_iget(child->d_sb, ino));
 423 }
 424
 425 static int __recover_dot_dentries(struct inode *dir, nid_t pino)
 426 {
 427         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 428         struct qstr dot = QSTR_INIT(".", 1);
 429         struct qstr dotdot = QSTR_INIT("..", 2);
 430         struct f2fs_dir_entry *de;
 431         struct page *page;
 432         int err = 0;
 433
 434         if (f2fs_readonly(sbi->sb)) {
 435                 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint",
 436                           dir->i_ino, pino);
 437                 return 0;
 438         }
 439
 440         err = dquot_initialize(dir);
 441         if (err)
 442                 return err;
 443
 444         f2fs_balance_fs(sbi, true);
 445
 446         f2fs_lock_op(sbi);
 447
 448         de = f2fs_find_entry(dir, &dot, &page);
 449         if (de) {
 450                 f2fs_put_page(page, 0);
 451         } else if (IS_ERR(page)) {
 452                 err = PTR_ERR(page);
 453                 goto out;
 454         } else {
 455                 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR);
 456                 if (err)
 457                         goto out;
 458         }
 459
 460         de = f2fs_find_entry(dir, &dotdot, &page);
 461         if (de)
 462                 f2fs_put_page(page, 0);
 463         else if (IS_ERR(page))
 464                 err = PTR_ERR(page);
 465         else
 466                 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR);
 467 out:
 468         if (!err)
 469                 clear_inode_flag(dir, FI_INLINE_DOTS);
 470
 471         f2fs_unlock_op(sbi);
 472         return err;
 473 }
 474
 475 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
 476                 unsigned int flags)
 477 {
 478         struct inode *inode = NULL;
 479         struct f2fs_dir_entry *de;
 480         struct page *page;
 481         struct dentry *new;
 482         nid_t ino = -1;
 483         int err = 0;
 484         unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
 485         struct fscrypt_name fname;
 486
 487         trace_f2fs_lookup_start(dir, dentry, flags);
 488
 489         if (dentry->d_name.len > F2FS_NAME_LEN) {
 490                 err = -ENAMETOOLONG;
 491                 goto out;
 492         }
 493
 494         err = fscrypt_prepare_lookup(dir, dentry, &fname);
 495         if (err == -ENOENT)
 496                 goto out_splice;
 497         if (err)
 498                 goto out;
 499         de = __f2fs_find_entry(dir, &fname, &page);
 500         fscrypt_free_filename(&fname);
 501
 502         if (!de) {
 503                 if (IS_ERR(page)) {
 504                         err = PTR_ERR(page);
 505                         goto out;
 506                 }
 507                 goto out_splice;
 508         }
 509
 510         ino = le32_to_cpu(de->ino);
 511         f2fs_put_page(page, 0);
 512
 513         inode = f2fs_iget(dir->i_sb, ino);
 514         if (IS_ERR(inode)) {
 515                 err = PTR_ERR(inode);
 516                 goto out;
 517         }
 518
 519         if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
 520                 err = __recover_dot_dentries(dir, root_ino);
 521                 if (err)
 522                         goto out_iput;
 523         }
 524
 525         if (f2fs_has_inline_dots(inode)) {
 526                 err = __recover_dot_dentries(inode, dir->i_ino);
 527                 if (err)
 528                         goto out_iput;
 529         }
 530         if (IS_ENCRYPTED(dir) &&
 531             (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
 532             !fscrypt_has_permitted_context(dir, inode)) {
 533                 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
 534                           dir->i_ino, inode->i_ino);
 535                 err = -EPERM;
 536                 goto out_iput;
 537         }
 538 out_splice:
 539 #ifdef CONFIG_UNICODE
 540         if (!inode && IS_CASEFOLDED(dir)) {
 541                 /* Eventually we want to call d_add_ci(dentry, NULL)
 542                  * for negative dentries in the encoding case as
 543                  * well.  For now, prevent the negative dentry
 544                  * from being cached.
 545                  */
 546                 trace_f2fs_lookup_end(dir, dentry, ino, err);
 547                 return NULL;
 548         }
 549 #endif
 550         new = d_splice_alias(inode, dentry);
 551         err = PTR_ERR_OR_ZERO(new);
 552         trace_f2fs_lookup_end(dir, dentry, ino, err);
 553         return new;
 554 out_iput:
 555         iput(inode);
 556 out:
 557         trace_f2fs_lookup_end(dir, dentry, ino, err);
 558         return ERR_PTR(err);
 559 }
 560
 561 static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 562 {
 563         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 564         struct inode *inode = d_inode(dentry);
 565         struct f2fs_dir_entry *de;
 566         struct page *page;
 567         int err = -ENOENT;
 568
 569         trace_f2fs_unlink_enter(dir, dentry);
 570
 571         if (unlikely(f2fs_cp_error(sbi)))
 572                 return -EIO;
 573
 574         err = dquot_initialize(dir);
 575         if (err)
 576                 return err;
 577         err = dquot_initialize(inode);
 578         if (err)
 579                 return err;
 580
 581         de = f2fs_find_entry(dir, &dentry->d_name, &page);
 582         if (!de) {
 583                 if (IS_ERR(page))
 584                         err = PTR_ERR(page);
 585                 goto fail;
 586         }
 587
 588         f2fs_balance_fs(sbi, true);
 589
 590         f2fs_lock_op(sbi);
 591         err = f2fs_acquire_orphan_inode(sbi);
 592         if (err) {
 593                 f2fs_unlock_op(sbi);
 594                 f2fs_put_page(page, 0);
 595                 goto fail;
 596         }
 597         f2fs_delete_entry(de, page, dir, inode);
 598 #ifdef CONFIG_UNICODE
 599         /* VFS negative dentries are incompatible with Encoding and
 600          * Case-insensitiveness. Eventually we'll want avoid
 601          * invalidating the dentries here, alongside with returning the
 602          * negative dentries at f2fs_lookup(), when it is  better
 603          * supported by the VFS for the CI case.
 604          */
 605         if (IS_CASEFOLDED(dir))
 606                 d_invalidate(dentry);
 607 #endif
 608         f2fs_unlock_op(sbi);
 609
 610         if (IS_DIRSYNC(dir))
 611                 f2fs_sync_fs(sbi->sb, 1);
 612 fail:
 613         trace_f2fs_unlink_exit(inode, err);
 614         return err;
 615 }
 616
 617 static const char *f2fs_get_link(struct dentry *dentry,
 618                                  struct inode *inode,
 619                                  struct delayed_call *done)
 620 {
 621         const char *link = page_get_link(dentry, inode, done);
 622         if (!IS_ERR(link) && !*link) {
 623                 /* this is broken symlink case */
 624                 do_delayed_call(done);
 625                 clear_delayed_call(done);
 626                 link = ERR_PTR(-ENOENT);
 627         }
 628         return link;
 629 }
 630
 631 static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
 632                                         const char *symname)
 633 {
 634         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 635         struct inode *inode;
 636         size_t len = strlen(symname);
 637         struct fscrypt_str disk_link;
 638         int err;
 639
 640         if (unlikely(f2fs_cp_error(sbi)))
 641                 return -EIO;
 642         if (!f2fs_is_checkpoint_ready(sbi))
 643                 return -ENOSPC;
 644
 645         err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
 646                                       &disk_link);
 647         if (err)
 648                 return err;
 649
 650         err = dquot_initialize(dir);
 651         if (err)
 652                 return err;
 653
 654         inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO);
 655         if (IS_ERR(inode))
 656                 return PTR_ERR(inode);
 657
 658         if (IS_ENCRYPTED(inode))
 659                 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
 660         else
 661                 inode->i_op = &f2fs_symlink_inode_operations;
 662         inode_nohighmem(inode);
 663         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 664
 665         f2fs_lock_op(sbi);
 666         err = f2fs_add_link(dentry, inode);
 667         if (err)
 668                 goto out_f2fs_handle_failed_inode;
 669         f2fs_unlock_op(sbi);
 670         f2fs_alloc_nid_done(sbi, inode->i_ino);
 671
 672         err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
 673         if (err)
 674                 goto err_out;
 675
 676         err = page_symlink(inode, disk_link.name, disk_link.len);
 677
 678 err_out:
 679         d_instantiate_new(dentry, inode);
 680
 681         /*
 682          * Let's flush symlink data in order to avoid broken symlink as much as
 683          * possible. Nevertheless, fsyncing is the best way, but there is no
 684          * way to get a file descriptor in order to flush that.
 685          *
 686          * Note that, it needs to do dir->fsync to make this recoverable.
 687          * If the symlink path is stored into inline_data, there is no
 688          * performance regression.
 689          */
 690         if (!err) {
 691                 filemap_write_and_wait_range(inode->i_mapping, 0,
 692                                                         disk_link.len - 1);
 693
 694                 if (IS_DIRSYNC(dir))
 695                         f2fs_sync_fs(sbi->sb, 1);
 696         } else {
 697                 f2fs_unlink(dir, dentry);
 698         }
 699
 700         f2fs_balance_fs(sbi, true);
 701         goto out_free_encrypted_link;
 702
 703 out_f2fs_handle_failed_inode:
 704         f2fs_handle_failed_inode(inode);
 705 out_free_encrypted_link:
 706         if (disk_link.name != (unsigned char *)symname)
 707                 kvfree(disk_link.name);
 708         return err;
 709 }
 710
 711 static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 712 {
 713         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 714         struct inode *inode;
 715         int err;
 716
 717         if (unlikely(f2fs_cp_error(sbi)))
 718                 return -EIO;
 719
 720         err = dquot_initialize(dir);
 721         if (err)
 722                 return err;
 723
 724         inode = f2fs_new_inode(dir, S_IFDIR | mode);
 725         if (IS_ERR(inode))
 726                 return PTR_ERR(inode);
 727
 728         inode->i_op = &f2fs_dir_inode_operations;
 729         inode->i_fop = &f2fs_dir_operations;
 730         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 731         inode_nohighmem(inode);
 732
 733         set_inode_flag(inode, FI_INC_LINK);
 734         f2fs_lock_op(sbi);
 735         err = f2fs_add_link(dentry, inode);
 736         if (err)
 737                 goto out_fail;
 738         f2fs_unlock_op(sbi);
 739
 740         f2fs_alloc_nid_done(sbi, inode->i_ino);
 741
 742         d_instantiate_new(dentry, inode);
 743
 744         if (IS_DIRSYNC(dir))
 745                 f2fs_sync_fs(sbi->sb, 1);
 746
 747         f2fs_balance_fs(sbi, true);
 748         return 0;
 749
 750 out_fail:
 751         clear_inode_flag(inode, FI_INC_LINK);
 752         f2fs_handle_failed_inode(inode);
 753         return err;
 754 }
 755
 756 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
 757 {
 758         struct inode *inode = d_inode(dentry);
 759         if (f2fs_empty_dir(inode))
 760                 return f2fs_unlink(dir, dentry);
 761         return -ENOTEMPTY;
 762 }
 763
 764 static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
 765                                 umode_t mode, dev_t rdev)
 766 {
 767         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 768         struct inode *inode;
 769         int err = 0;
 770
 771         if (unlikely(f2fs_cp_error(sbi)))
 772                 return -EIO;
 773         if (!f2fs_is_checkpoint_ready(sbi))
 774                 return -ENOSPC;
 775
 776         err = dquot_initialize(dir);
 777         if (err)
 778                 return err;
 779
 780         inode = f2fs_new_inode(dir, mode);
 781         if (IS_ERR(inode))
 782                 return PTR_ERR(inode);
 783
 784         init_special_inode(inode, inode->i_mode, rdev);
 785         inode->i_op = &f2fs_special_inode_operations;
 786
 787         f2fs_lock_op(sbi);
 788         err = f2fs_add_link(dentry, inode);
 789         if (err)
 790                 goto out;
 791         f2fs_unlock_op(sbi);
 792
 793         f2fs_alloc_nid_done(sbi, inode->i_ino);
 794
 795         d_instantiate_new(dentry, inode);
 796
 797         if (IS_DIRSYNC(dir))
 798                 f2fs_sync_fs(sbi->sb, 1);
 799
 800         f2fs_balance_fs(sbi, true);
 801         return 0;
 802 out:
 803         f2fs_handle_failed_inode(inode);
 804         return err;
 805 }
 806
 807 static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
 808                                         umode_t mode, struct inode **whiteout)
 809 {
 810         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 811         struct inode *inode;
 812         int err;
 813
 814         err = dquot_initialize(dir);
 815         if (err)
 816                 return err;
 817
 818         inode = f2fs_new_inode(dir, mode);
 819         if (IS_ERR(inode))
 820                 return PTR_ERR(inode);
 821
 822         if (whiteout) {
 823                 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
 824                 inode->i_op = &f2fs_special_inode_operations;
 825         } else {
 826                 inode->i_op = &f2fs_file_inode_operations;
 827                 inode->i_fop = &f2fs_file_operations;
 828                 inode->i_mapping->a_ops = &f2fs_dblock_aops;
 829         }
 830
 831         f2fs_lock_op(sbi);
 832         err = f2fs_acquire_orphan_inode(sbi);
 833         if (err)
 834                 goto out;
 835
 836         err = f2fs_do_tmpfile(inode, dir);
 837         if (err)
 838                 goto release_out;
 839
 840         /*
 841          * add this non-linked tmpfile to orphan list, in this way we could
 842          * remove all unused data of tmpfile after abnormal power-off.
 843          */
 844         f2fs_add_orphan_inode(inode);
 845         f2fs_alloc_nid_done(sbi, inode->i_ino);
 846
 847         if (whiteout) {
 848                 f2fs_i_links_write(inode, false);
 849                 inode->i_state |= I_LINKABLE;
 850                 *whiteout = inode;
 851         } else {
 852                 d_tmpfile(dentry, inode);
 853         }
 854         /* link_count was changed by d_tmpfile as well. */
 855         f2fs_unlock_op(sbi);
 856         unlock_new_inode(inode);
 857
 858         f2fs_balance_fs(sbi, true);
 859         return 0;
 860
 861 release_out:
 862         f2fs_release_orphan_inode(sbi);
 863 out:
 864         f2fs_handle_failed_inode(inode);
 865         return err;
 866 }
 867
 868 static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
 869 {
 870         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 871
 872         if (unlikely(f2fs_cp_error(sbi)))
 873                 return -EIO;
 874         if (!f2fs_is_checkpoint_ready(sbi))
 875                 return -ENOSPC;
 876
 877         return __f2fs_tmpfile(dir, dentry, mode, NULL);
 878 }
 879
 880 static int f2fs_create_whiteout(struct inode *dir, struct inode **whiteout)
 881 {
 882         if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
 883                 return -EIO;
 884
 885         return __f2fs_tmpfile(dir, NULL, S_IFCHR | WHITEOUT_MODE, whiteout);
 886 }
 887
 888 static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 889                         struct inode *new_dir, struct dentry *new_dentry,
 890                         unsigned int flags)
 891 {
 892         struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
 893         struct inode *old_inode = d_inode(old_dentry);
 894         struct inode *new_inode = d_inode(new_dentry);
 895         struct inode *whiteout = NULL;
 896         struct page *old_dir_page = NULL;
 897         struct page *old_page, *new_page = NULL;
 898         struct f2fs_dir_entry *old_dir_entry = NULL;
 899         struct f2fs_dir_entry *old_entry;
 900         struct f2fs_dir_entry *new_entry;
 901         int err;
 902
 903         if (unlikely(f2fs_cp_error(sbi)))
 904                 return -EIO;
 905         if (!f2fs_is_checkpoint_ready(sbi))
 906                 return -ENOSPC;
 907
 908         if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
 909                         (!projid_eq(F2FS_I(new_dir)->i_projid,
 910                         F2FS_I(old_dentry->d_inode)->i_projid)))
 911                 return -EXDEV;
 912
 913         /*
 914          * If new_inode is null, the below renaming flow will
 915          * add a link in old_dir which can conver inline_dir.
 916          * After then, if we failed to get the entry due to other
 917          * reasons like ENOMEM, we had to remove the new entry.
 918          * Instead of adding such the error handling routine, let's
 919          * simply convert first here.
 920          */
 921         if (old_dir == new_dir && !new_inode) {
 922                 err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
 923                 if (err)
 924                         return err;
 925         }
 926
 927         if (flags & RENAME_WHITEOUT) {
 928                 err = f2fs_create_whiteout(old_dir, &whiteout);
 929                 if (err)
 930                         return err;
 931         }
 932
 933         err = dquot_initialize(old_dir);
 934         if (err)
 935                 goto out;
 936
 937         err = dquot_initialize(new_dir);
 938         if (err)
 939                 goto out;
 940
 941         if (new_inode) {
 942                 err = dquot_initialize(new_inode);
 943                 if (err)
 944                         goto out;
 945         }
 946
 947         err = -ENOENT;
 948         old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
 949         if (!old_entry) {
 950                 if (IS_ERR(old_page))
 951                         err = PTR_ERR(old_page);
 952                 goto out;
 953         }
 954
 955         if (S_ISDIR(old_inode->i_mode)) {
 956                 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page);
 957                 if (!old_dir_entry) {
 958                         if (IS_ERR(old_dir_page))
 959                                 err = PTR_ERR(old_dir_page);
 960                         goto out_old;
 961                 }
 962         }
 963
 964         if (new_inode) {
 965
 966                 err = -ENOTEMPTY;
 967                 if (old_dir_entry && !f2fs_empty_dir(new_inode))
 968                         goto out_dir;
 969
 970                 err = -ENOENT;
 971                 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name,
 972                                                 &new_page);
 973                 if (!new_entry) {
 974                         if (IS_ERR(new_page))
 975                                 err = PTR_ERR(new_page);
 976                         goto out_dir;
 977                 }
 978
 979                 f2fs_balance_fs(sbi, true);
 980
 981                 f2fs_lock_op(sbi);
 982
 983                 err = f2fs_acquire_orphan_inode(sbi);
 984                 if (err)
 985                         goto put_out_dir;
 986
 987                 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
 988                 new_page = NULL;
 989
 990                 new_inode->i_ctime = current_time(new_inode);
 991                 down_write(&F2FS_I(new_inode)->i_sem);
 992                 if (old_dir_entry)
 993                         f2fs_i_links_write(new_inode, false);
 994                 f2fs_i_links_write(new_inode, false);
 995                 up_write(&F2FS_I(new_inode)->i_sem);
 996
 997                 if (!new_inode->i_nlink)
 998                         f2fs_add_orphan_inode(new_inode);
 999                 else
1000                         f2fs_release_orphan_inode(sbi);
1001         } else {
1002                 f2fs_balance_fs(sbi, true);
1003
1004                 f2fs_lock_op(sbi);
1005
1006                 err = f2fs_add_link(new_dentry, old_inode);
1007                 if (err) {
1008                         f2fs_unlock_op(sbi);
1009                         goto out_dir;
1010                 }
1011
1012                 if (old_dir_entry)
1013                         f2fs_i_links_write(new_dir, true);
1014         }
1015
1016         down_write(&F2FS_I(old_inode)->i_sem);
1017         if (!old_dir_entry || whiteout)
1018                 file_lost_pino(old_inode);
1019         else
1020                 /* adjust dir's i_pino to pass fsck check */
1021                 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1022         up_write(&F2FS_I(old_inode)->i_sem);
1023
1024         old_inode->i_ctime = current_time(old_inode);
1025         f2fs_mark_inode_dirty_sync(old_inode, false);
1026
1027         f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
1028         old_page = NULL;
1029
1030         if (whiteout) {
1031                 set_inode_flag(whiteout, FI_INC_LINK);
1032                 err = f2fs_add_link(old_dentry, whiteout);
1033                 if (err)
1034                         goto put_out_dir;
1035                 whiteout->i_state &= ~I_LINKABLE;
1036                 iput(whiteout);
1037         }
1038
1039         if (old_dir_entry) {
1040                 if (old_dir != new_dir && !whiteout)
1041                         f2fs_set_link(old_inode, old_dir_entry,
1042                                                 old_dir_page, new_dir);
1043                 else
1044                         f2fs_put_page(old_dir_page, 0);
1045                 f2fs_i_links_write(old_dir, false);
1046         }
1047         if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1048                 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1049                 if (S_ISDIR(old_inode->i_mode))
1050                         f2fs_add_ino_entry(sbi, old_inode->i_ino,
1051                                                         TRANS_DIR_INO);
1052         }
1053
1054         f2fs_unlock_op(sbi);
1055
1056         if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1057                 f2fs_sync_fs(sbi->sb, 1);
1058
1059         f2fs_update_time(sbi, REQ_TIME);
1060         return 0;
1061
1062 put_out_dir:
1063         f2fs_unlock_op(sbi);
1064         f2fs_put_page(new_page, 0);
1065 out_dir:
1066         if (old_dir_entry)
1067                 f2fs_put_page(old_dir_page, 0);
1068 out_old:
1069         f2fs_put_page(old_page, 0);
1070 out:
1071         if (whiteout)
1072                 iput(whiteout);
1073         return err;
1074 }
1075
1076 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
1077                              struct inode *new_dir, struct dentry *new_dentry)
1078 {
1079         struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
1080         struct inode *old_inode = d_inode(old_dentry);
1081         struct inode *new_inode = d_inode(new_dentry);
1082         struct page *old_dir_page, *new_dir_page;
1083         struct page *old_page, *new_page;
1084         struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
1085         struct f2fs_dir_entry *old_entry, *new_entry;
1086         int old_nlink = 0, new_nlink = 0;
1087         int err;
1088
1089         if (unlikely(f2fs_cp_error(sbi)))
1090                 return -EIO;
1091         if (!f2fs_is_checkpoint_ready(sbi))
1092                 return -ENOSPC;
1093
1094         if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1095                         !projid_eq(F2FS_I(new_dir)->i_projid,
1096                         F2FS_I(old_dentry->d_inode)->i_projid)) ||
1097             (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1098                         !projid_eq(F2FS_I(old_dir)->i_projid,
1099                         F2FS_I(new_dentry->d_inode)->i_projid)))
1100                 return -EXDEV;
1101
1102         err = dquot_initialize(old_dir);
1103         if (err)
1104                 goto out;
1105
1106         err = dquot_initialize(new_dir);
1107         if (err)
1108                 goto out;
1109
1110         err = -ENOENT;
1111         old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1112         if (!old_entry) {
1113                 if (IS_ERR(old_page))
1114                         err = PTR_ERR(old_page);
1115                 goto out;
1116         }
1117
1118         new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1119         if (!new_entry) {
1120                 if (IS_ERR(new_page))
1121                         err = PTR_ERR(new_page);
1122                 goto out_old;
1123         }
1124
1125         /* prepare for updating ".." directory entry info later */
1126         if (old_dir != new_dir) {
1127                 if (S_ISDIR(old_inode->i_mode)) {
1128                         old_dir_entry = f2fs_parent_dir(old_inode,
1129                                                         &old_dir_page);
1130                         if (!old_dir_entry) {
1131                                 if (IS_ERR(old_dir_page))
1132                                         err = PTR_ERR(old_dir_page);
1133                                 goto out_new;
1134                         }
1135                 }
1136
1137                 if (S_ISDIR(new_inode->i_mode)) {
1138                         new_dir_entry = f2fs_parent_dir(new_inode,
1139                                                         &new_dir_page);
1140                         if (!new_dir_entry) {
1141                                 if (IS_ERR(new_dir_page))
1142                                         err = PTR_ERR(new_dir_page);
1143                                 goto out_old_dir;
1144                         }
1145                 }
1146         }
1147
1148         /*
1149          * If cross rename between file and directory those are not
1150          * in the same directory, we will inc nlink of file's parent
1151          * later, so we should check upper boundary of its nlink.
1152          */
1153         if ((!old_dir_entry || !new_dir_entry) &&
1154                                 old_dir_entry != new_dir_entry) {
1155                 old_nlink = old_dir_entry ? -1 : 1;
1156                 new_nlink = -old_nlink;
1157                 err = -EMLINK;
1158                 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) ||
1159                         (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX))
1160                         goto out_new_dir;
1161         }
1162
1163         f2fs_balance_fs(sbi, true);
1164
1165         f2fs_lock_op(sbi);
1166
1167         /* update ".." directory entry info of old dentry */
1168         if (old_dir_entry)
1169                 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir);
1170
1171         /* update ".." directory entry info of new dentry */
1172         if (new_dir_entry)
1173                 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir);
1174
1175         /* update directory entry info of old dir inode */
1176         f2fs_set_link(old_dir, old_entry, old_page, new_inode);
1177
1178         down_write(&F2FS_I(old_inode)->i_sem);
1179         if (!old_dir_entry)
1180                 file_lost_pino(old_inode);
1181         else
1182                 /* adjust dir's i_pino to pass fsck check */
1183                 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1184         up_write(&F2FS_I(old_inode)->i_sem);
1185
1186         old_dir->i_ctime = current_time(old_dir);
1187         if (old_nlink) {
1188                 down_write(&F2FS_I(old_dir)->i_sem);
1189                 f2fs_i_links_write(old_dir, old_nlink > 0);
1190                 up_write(&F2FS_I(old_dir)->i_sem);
1191         }
1192         f2fs_mark_inode_dirty_sync(old_dir, false);
1193
1194         /* update directory entry info of new dir inode */
1195         f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1196
1197         down_write(&F2FS_I(new_inode)->i_sem);
1198         if (!new_dir_entry)
1199                 file_lost_pino(new_inode);
1200         else
1201                 /* adjust dir's i_pino to pass fsck check */
1202                 f2fs_i_pino_write(new_inode, old_dir->i_ino);
1203         up_write(&F2FS_I(new_inode)->i_sem);
1204
1205         new_dir->i_ctime = current_time(new_dir);
1206         if (new_nlink) {
1207                 down_write(&F2FS_I(new_dir)->i_sem);
1208                 f2fs_i_links_write(new_dir, new_nlink > 0);
1209                 up_write(&F2FS_I(new_dir)->i_sem);
1210         }
1211         f2fs_mark_inode_dirty_sync(new_dir, false);
1212
1213         if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1214                 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
1215                 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1216         }
1217
1218         f2fs_unlock_op(sbi);
1219
1220         if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1221                 f2fs_sync_fs(sbi->sb, 1);
1222
1223         f2fs_update_time(sbi, REQ_TIME);
1224         return 0;
1225 out_new_dir:
1226         if (new_dir_entry) {
1227                 f2fs_put_page(new_dir_page, 0);
1228         }
1229 out_old_dir:
1230         if (old_dir_entry) {
1231                 f2fs_put_page(old_dir_page, 0);
1232         }
1233 out_new:
1234         f2fs_put_page(new_page, 0);
1235 out_old:
1236         f2fs_put_page(old_page, 0);
1237 out:
1238         return err;
1239 }
1240
1241 static int f2fs_rename2(struct inode *old_dir, struct dentry *old_dentry,
1242                         struct inode *new_dir, struct dentry *new_dentry,
1243                         unsigned int flags)
1244 {
1245         int err;
1246
1247         if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
1248                 return -EINVAL;
1249
1250         err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1251                                      flags);
1252         if (err)
1253                 return err;
1254
1255         if (flags & RENAME_EXCHANGE) {
1256                 return f2fs_cross_rename(old_dir, old_dentry,
1257                                          new_dir, new_dentry);
1258         }
1259         /*
1260          * VFS has already handled the new dentry existence case,
1261          * here, we just deal with "RENAME_NOREPLACE" as regular rename.
1262          */
1263         return f2fs_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
1264 }
1265
1266 static const char *f2fs_encrypted_get_link(struct dentry *dentry,
1267                                            struct inode *inode,
1268                                            struct delayed_call *done)
1269 {
1270         struct page *page;
1271         const char *target;
1272
1273         if (!dentry)
1274                 return ERR_PTR(-ECHILD);
1275
1276         page = read_mapping_page(inode->i_mapping, 0, NULL);
1277         if (IS_ERR(page))
1278                 return ERR_CAST(page);
1279
1280         target = fscrypt_get_symlink(inode, page_address(page),
1281                                      inode->i_sb->s_blocksize, done);
1282         put_page(page);
1283         return target;
1284 }
1285
1286 const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
1287         .get_link       = f2fs_encrypted_get_link,
1288         .getattr        = f2fs_getattr,
1289         .setattr        = f2fs_setattr,
1290 #ifdef CONFIG_F2FS_FS_XATTR
1291         .listxattr      = f2fs_listxattr,
1292 #endif
1293 };
1294
1295 const struct inode_operations f2fs_dir_inode_operations = {
1296         .create         = f2fs_create,
1297         .lookup         = f2fs_lookup,
1298         .link           = f2fs_link,
1299         .unlink         = f2fs_unlink,
1300         .symlink        = f2fs_symlink,
1301         .mkdir          = f2fs_mkdir,
1302         .rmdir          = f2fs_rmdir,
1303         .mknod          = f2fs_mknod,
1304         .rename         = f2fs_rename2,
1305         .tmpfile        = f2fs_tmpfile,
1306         .getattr        = f2fs_getattr,
1307         .setattr        = f2fs_setattr,
1308         .get_acl        = f2fs_get_acl,
1309         .set_acl        = f2fs_set_acl,
1310 #ifdef CONFIG_F2FS_FS_XATTR
1311         .listxattr      = f2fs_listxattr,
1312 #endif
1313         .fiemap         = f2fs_fiemap,
1314 };
1315
1316 const struct inode_operations f2fs_symlink_inode_operations = {
1317         .get_link       = f2fs_get_link,
1318         .getattr        = f2fs_getattr,
1319         .setattr        = f2fs_setattr,
1320 #ifdef CONFIG_F2FS_FS_XATTR
1321         .listxattr      = f2fs_listxattr,
1322 #endif
1323 };
1324
1325 const struct inode_operations f2fs_special_inode_operations = {
1326         .getattr        = f2fs_getattr,
1327         .setattr        = f2fs_setattr,
1328         .get_acl        = f2fs_get_acl,
1329         .set_acl        = f2fs_set_acl,
1330 #ifdef CONFIG_F2FS_FS_XATTR
1331         .listxattr      = f2fs_listxattr,
1332 #endif
1333 };