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         bool encrypt = false;
  32         int xattr_size = 0;
  33         int err;
  34
  35         inode = new_inode(dir->i_sb);
  36         if (!inode)
  37                 return ERR_PTR(-ENOMEM);
  38
  39         f2fs_lock_op(sbi);
  40         if (!f2fs_alloc_nid(sbi, &ino)) {
  41                 f2fs_unlock_op(sbi);
  42                 err = -ENOSPC;
  43                 goto fail;
  44         }
  45         f2fs_unlock_op(sbi);
  46
  47         nid_free = true;
  48
  49         inode_init_owner(&init_user_ns, inode, dir, mode);
  50
  51         inode->i_ino = ino;
  52         inode->i_blocks = 0;
  53         inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
  54         F2FS_I(inode)->i_crtime = inode->i_mtime;
  55         inode->i_generation = prandom_u32();
  56
  57         if (S_ISDIR(inode->i_mode))
  58                 F2FS_I(inode)->i_current_depth = 1;
  59
  60         err = insert_inode_locked(inode);
  61         if (err) {
  62                 err = -EINVAL;
  63                 goto fail;
  64         }
  65
  66         if (f2fs_sb_has_project_quota(sbi) &&
  67                 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL))
  68                 F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid;
  69         else
  70                 F2FS_I(inode)->i_projid = make_kprojid(&init_user_ns,
  71                                                         F2FS_DEF_PROJID);
  72
  73         err = fscrypt_prepare_new_inode(dir, inode, &encrypt);
  74         if (err)
  75                 goto fail_drop;
  76
  77         err = dquot_initialize(inode);
  78         if (err)
  79                 goto fail_drop;
  80
  81         set_inode_flag(inode, FI_NEW_INODE);
  82
  83         if (encrypt)
  84                 f2fs_set_encrypted_inode(inode);
  85
  86         if (f2fs_sb_has_extra_attr(sbi)) {
  87                 set_inode_flag(inode, FI_EXTRA_ATTR);
  88                 F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE;
  89         }
  90
  91         if (test_opt(sbi, INLINE_XATTR))
  92                 set_inode_flag(inode, FI_INLINE_XATTR);
  93
  94         if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
  95                 set_inode_flag(inode, FI_INLINE_DATA);
  96         if (f2fs_may_inline_dentry(inode))
  97                 set_inode_flag(inode, FI_INLINE_DENTRY);
  98
  99         if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
 100                 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
 101                 if (f2fs_has_inline_xattr(inode))
 102                         xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
 103                 /* Otherwise, will be 0 */
 104         } else if (f2fs_has_inline_xattr(inode) ||
 105                                 f2fs_has_inline_dentry(inode)) {
 106                 xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
 107         }
 108         F2FS_I(inode)->i_inline_xattr_size = xattr_size;
 109
 110         f2fs_init_extent_tree(inode, NULL);
 111
 112         stat_inc_inline_xattr(inode);
 113         stat_inc_inline_inode(inode);
 114         stat_inc_inline_dir(inode);
 115
 116         F2FS_I(inode)->i_flags =
 117                 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
 118
 119         if (S_ISDIR(inode->i_mode))
 120                 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL;
 121
 122         if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
 123                 set_inode_flag(inode, FI_PROJ_INHERIT);
 124
 125         if (f2fs_sb_has_compression(sbi)) {
 126                 /* Inherit the compression flag in directory */
 127                 if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) &&
 128                                         f2fs_may_compress(inode))
 129                         set_compress_context(inode);
 130         }
 131
 132         f2fs_set_inode_flags(inode);
 133
 134         trace_f2fs_new_inode(inode, 0);
 135         return inode;
 136
 137 fail:
 138         trace_f2fs_new_inode(inode, err);
 139         make_bad_inode(inode);
 140         if (nid_free)
 141                 set_inode_flag(inode, FI_FREE_NID);
 142         iput(inode);
 143         return ERR_PTR(err);
 144 fail_drop:
 145         trace_f2fs_new_inode(inode, err);
 146         dquot_drop(inode);
 147         inode->i_flags |= S_NOQUOTA;
 148         if (nid_free)
 149                 set_inode_flag(inode, FI_FREE_NID);
 150         clear_nlink(inode);
 151         unlock_new_inode(inode);
 152         iput(inode);
 153         return ERR_PTR(err);
 154 }
 155
 156 static inline int is_extension_exist(const unsigned char *s, const char *sub)
 157 {
 158         size_t slen = strlen(s);
 159         size_t sublen = strlen(sub);
 160         int i;
 161
 162         if (sublen == 1 && *sub == '*')
 163                 return 1;
 164
 165         /*
 166          * filename format of multimedia file should be defined as:
 167          * "filename + '.' + extension + (optional: '.' + temp extension)".
 168          */
 169         if (slen < sublen + 2)
 170                 return 0;
 171
 172         for (i = 1; i < slen - sublen; i++) {
 173                 if (s[i] != '.')
 174                         continue;
 175                 if (!strncasecmp(s + i + 1, sub, sublen))
 176                         return 1;
 177         }
 178
 179         return 0;
 180 }
 181
 182 /*
 183  * Set file's temperature for hot/cold data separation
 184  */
 185 static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
 186                 const unsigned char *name)
 187 {
 188         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 189         int i, cold_count, hot_count;
 190
 191         down_read(&sbi->sb_lock);
 192
 193         cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 194         hot_count = sbi->raw_super->hot_ext_count;
 195
 196         for (i = 0; i < cold_count + hot_count; i++) {
 197                 if (is_extension_exist(name, extlist[i]))
 198                         break;
 199         }
 200
 201         up_read(&sbi->sb_lock);
 202
 203         if (i == cold_count + hot_count)
 204                 return;
 205
 206         if (i < cold_count)
 207                 file_set_cold(inode);
 208         else
 209                 file_set_hot(inode);
 210 }
 211
 212 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
 213                                                         bool hot, bool set)
 214 {
 215         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 216         int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 217         int hot_count = sbi->raw_super->hot_ext_count;
 218         int total_count = cold_count + hot_count;
 219         int start, count;
 220         int i;
 221
 222         if (set) {
 223                 if (total_count == F2FS_MAX_EXTENSION)
 224                         return -EINVAL;
 225         } else {
 226                 if (!hot && !cold_count)
 227                         return -EINVAL;
 228                 if (hot && !hot_count)
 229                         return -EINVAL;
 230         }
 231
 232         if (hot) {
 233                 start = cold_count;
 234                 count = total_count;
 235         } else {
 236                 start = 0;
 237                 count = cold_count;
 238         }
 239
 240         for (i = start; i < count; i++) {
 241                 if (strcmp(name, extlist[i]))
 242                         continue;
 243
 244                 if (set)
 245                         return -EINVAL;
 246
 247                 memcpy(extlist[i], extlist[i + 1],
 248                                 F2FS_EXTENSION_LEN * (total_count - i - 1));
 249                 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN);
 250                 if (hot)
 251                         sbi->raw_super->hot_ext_count = hot_count - 1;
 252                 else
 253                         sbi->raw_super->extension_count =
 254                                                 cpu_to_le32(cold_count - 1);
 255                 return 0;
 256         }
 257
 258         if (!set)
 259                 return -EINVAL;
 260
 261         if (hot) {
 262                 memcpy(extlist[count], name, strlen(name));
 263                 sbi->raw_super->hot_ext_count = hot_count + 1;
 264         } else {
 265                 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN];
 266
 267                 memcpy(buf, &extlist[cold_count],
 268                                 F2FS_EXTENSION_LEN * hot_count);
 269                 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN);
 270                 memcpy(extlist[cold_count], name, strlen(name));
 271                 memcpy(&extlist[cold_count + 1], buf,
 272                                 F2FS_EXTENSION_LEN * hot_count);
 273                 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1);
 274         }
 275         return 0;
 276 }
 277
 278 static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
 279                                                 const unsigned char *name)
 280 {
 281         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 282         unsigned char (*ext)[F2FS_EXTENSION_LEN];
 283         unsigned int ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
 284         int i, cold_count, hot_count;
 285
 286         if (!f2fs_sb_has_compression(sbi) ||
 287                         is_inode_flag_set(inode, FI_COMPRESSED_FILE) ||
 288                         F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
 289                         !f2fs_may_compress(inode))
 290                 return;
 291
 292         down_read(&sbi->sb_lock);
 293
 294         cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 295         hot_count = sbi->raw_super->hot_ext_count;
 296
 297         for (i = cold_count; i < cold_count + hot_count; i++) {
 298                 if (is_extension_exist(name, extlist[i])) {
 299                         up_read(&sbi->sb_lock);
 300                         return;
 301                 }
 302         }
 303
 304         up_read(&sbi->sb_lock);
 305
 306         ext = F2FS_OPTION(sbi).extensions;
 307
 308         for (i = 0; i < ext_cnt; i++) {
 309                 if (!is_extension_exist(name, ext[i]))
 310                         continue;
 311
 312                 set_compress_context(inode);
 313                 return;
 314         }
 315 }
 316
 317 static int f2fs_create(struct user_namespace *mnt_userns, struct inode *dir,
 318                        struct dentry *dentry, umode_t mode, bool excl)
 319 {
 320         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 321         struct inode *inode;
 322         nid_t ino = 0;
 323         int err;
 324
 325         if (unlikely(f2fs_cp_error(sbi)))
 326                 return -EIO;
 327         if (!f2fs_is_checkpoint_ready(sbi))
 328                 return -ENOSPC;
 329
 330         err = dquot_initialize(dir);
 331         if (err)
 332                 return err;
 333
 334         inode = f2fs_new_inode(dir, mode);
 335         if (IS_ERR(inode))
 336                 return PTR_ERR(inode);
 337
 338         if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
 339                 set_file_temperature(sbi, inode, dentry->d_name.name);
 340
 341         set_compress_inode(sbi, inode, dentry->d_name.name);
 342
 343         inode->i_op = &f2fs_file_inode_operations;
 344         inode->i_fop = &f2fs_file_operations;
 345         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 346         ino = inode->i_ino;
 347
 348         f2fs_lock_op(sbi);
 349         err = f2fs_add_link(dentry, inode);
 350         if (err)
 351                 goto out;
 352         f2fs_unlock_op(sbi);
 353
 354         f2fs_alloc_nid_done(sbi, ino);
 355
 356         d_instantiate_new(dentry, inode);
 357
 358         if (IS_DIRSYNC(dir))
 359                 f2fs_sync_fs(sbi->sb, 1);
 360
 361         f2fs_balance_fs(sbi, true);
 362         return 0;
 363 out:
 364         f2fs_handle_failed_inode(inode);
 365         return err;
 366 }
 367
 368 static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
 369                 struct dentry *dentry)
 370 {
 371         struct inode *inode = d_inode(old_dentry);
 372         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 373         int err;
 374
 375         if (unlikely(f2fs_cp_error(sbi)))
 376                 return -EIO;
 377         if (!f2fs_is_checkpoint_ready(sbi))
 378                 return -ENOSPC;
 379
 380         err = fscrypt_prepare_link(old_dentry, dir, dentry);
 381         if (err)
 382                 return err;
 383
 384         if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
 385                         (!projid_eq(F2FS_I(dir)->i_projid,
 386                         F2FS_I(old_dentry->d_inode)->i_projid)))
 387                 return -EXDEV;
 388
 389         err = dquot_initialize(dir);
 390         if (err)
 391                 return err;
 392
 393         f2fs_balance_fs(sbi, true);
 394
 395         inode->i_ctime = current_time(inode);
 396         ihold(inode);
 397
 398         set_inode_flag(inode, FI_INC_LINK);
 399         f2fs_lock_op(sbi);
 400         err = f2fs_add_link(dentry, inode);
 401         if (err)
 402                 goto out;
 403         f2fs_unlock_op(sbi);
 404
 405         d_instantiate(dentry, inode);
 406
 407         if (IS_DIRSYNC(dir))
 408                 f2fs_sync_fs(sbi->sb, 1);
 409         return 0;
 410 out:
 411         clear_inode_flag(inode, FI_INC_LINK);
 412         iput(inode);
 413         f2fs_unlock_op(sbi);
 414         return err;
 415 }
 416
 417 struct dentry *f2fs_get_parent(struct dentry *child)
 418 {
 419         struct page *page;
 420         unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page);
 421         if (!ino) {
 422                 if (IS_ERR(page))
 423                         return ERR_CAST(page);
 424                 return ERR_PTR(-ENOENT);
 425         }
 426         return d_obtain_alias(f2fs_iget(child->d_sb, ino));
 427 }
 428
 429 static int __recover_dot_dentries(struct inode *dir, nid_t pino)
 430 {
 431         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 432         struct qstr dot = QSTR_INIT(".", 1);
 433         struct qstr dotdot = QSTR_INIT("..", 2);
 434         struct f2fs_dir_entry *de;
 435         struct page *page;
 436         int err = 0;
 437
 438         if (f2fs_readonly(sbi->sb)) {
 439                 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint",
 440                           dir->i_ino, pino);
 441                 return 0;
 442         }
 443
 444         err = dquot_initialize(dir);
 445         if (err)
 446                 return err;
 447
 448         f2fs_balance_fs(sbi, true);
 449
 450         f2fs_lock_op(sbi);
 451
 452         de = f2fs_find_entry(dir, &dot, &page);
 453         if (de) {
 454                 f2fs_put_page(page, 0);
 455         } else if (IS_ERR(page)) {
 456                 err = PTR_ERR(page);
 457                 goto out;
 458         } else {
 459                 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR);
 460                 if (err)
 461                         goto out;
 462         }
 463
 464         de = f2fs_find_entry(dir, &dotdot, &page);
 465         if (de)
 466                 f2fs_put_page(page, 0);
 467         else if (IS_ERR(page))
 468                 err = PTR_ERR(page);
 469         else
 470                 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR);
 471 out:
 472         if (!err)
 473                 clear_inode_flag(dir, FI_INLINE_DOTS);
 474
 475         f2fs_unlock_op(sbi);
 476         return err;
 477 }
 478
 479 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
 480                 unsigned int flags)
 481 {
 482         struct inode *inode = NULL;
 483         struct f2fs_dir_entry *de;
 484         struct page *page;
 485         struct dentry *new;
 486         nid_t ino = -1;
 487         int err = 0;
 488         unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
 489         struct f2fs_filename fname;
 490
 491         trace_f2fs_lookup_start(dir, dentry, flags);
 492
 493         if (dentry->d_name.len > F2FS_NAME_LEN) {
 494                 err = -ENAMETOOLONG;
 495                 goto out;
 496         }
 497
 498         err = f2fs_prepare_lookup(dir, dentry, &fname);
 499         generic_set_encrypted_ci_d_ops(dentry);
 500         if (err == -ENOENT)
 501                 goto out_splice;
 502         if (err)
 503                 goto out;
 504         de = __f2fs_find_entry(dir, &fname, &page);
 505         f2fs_free_filename(&fname);
 506
 507         if (!de) {
 508                 if (IS_ERR(page)) {
 509                         err = PTR_ERR(page);
 510                         goto out;
 511                 }
 512                 err = -ENOENT;
 513                 goto out_splice;
 514         }
 515
 516         ino = le32_to_cpu(de->ino);
 517         f2fs_put_page(page, 0);
 518
 519         inode = f2fs_iget(dir->i_sb, ino);
 520         if (IS_ERR(inode)) {
 521                 err = PTR_ERR(inode);
 522                 goto out;
 523         }
 524
 525         if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
 526                 err = __recover_dot_dentries(dir, root_ino);
 527                 if (err)
 528                         goto out_iput;
 529         }
 530
 531         if (f2fs_has_inline_dots(inode)) {
 532                 err = __recover_dot_dentries(inode, dir->i_ino);
 533                 if (err)
 534                         goto out_iput;
 535         }
 536         if (IS_ENCRYPTED(dir) &&
 537             (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
 538             !fscrypt_has_permitted_context(dir, inode)) {
 539                 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
 540                           dir->i_ino, inode->i_ino);
 541                 err = -EPERM;
 542                 goto out_iput;
 543         }
 544 out_splice:
 545 #ifdef CONFIG_UNICODE
 546         if (!inode && IS_CASEFOLDED(dir)) {
 547                 /* Eventually we want to call d_add_ci(dentry, NULL)
 548                  * for negative dentries in the encoding case as
 549                  * well.  For now, prevent the negative dentry
 550                  * from being cached.
 551                  */
 552                 trace_f2fs_lookup_end(dir, dentry, ino, err);
 553                 return NULL;
 554         }
 555 #endif
 556         new = d_splice_alias(inode, dentry);
 557         err = PTR_ERR_OR_ZERO(new);
 558         trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err);
 559         return new;
 560 out_iput:
 561         iput(inode);
 562 out:
 563         trace_f2fs_lookup_end(dir, dentry, ino, err);
 564         return ERR_PTR(err);
 565 }
 566
 567 static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 568 {
 569         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 570         struct inode *inode = d_inode(dentry);
 571         struct f2fs_dir_entry *de;
 572         struct page *page;
 573         int err;
 574
 575         trace_f2fs_unlink_enter(dir, dentry);
 576
 577         if (unlikely(f2fs_cp_error(sbi))) {
 578                 err = -EIO;
 579                 goto fail;
 580         }
 581
 582         err = dquot_initialize(dir);
 583         if (err)
 584                 goto fail;
 585         err = dquot_initialize(inode);
 586         if (err)
 587                 goto fail;
 588
 589         de = f2fs_find_entry(dir, &dentry->d_name, &page);
 590         if (!de) {
 591                 if (IS_ERR(page))
 592                         err = PTR_ERR(page);
 593                 goto fail;
 594         }
 595
 596         f2fs_balance_fs(sbi, true);
 597
 598         f2fs_lock_op(sbi);
 599         err = f2fs_acquire_orphan_inode(sbi);
 600         if (err) {
 601                 f2fs_unlock_op(sbi);
 602                 f2fs_put_page(page, 0);
 603                 goto fail;
 604         }
 605         f2fs_delete_entry(de, page, dir, inode);
 606 #ifdef CONFIG_UNICODE
 607         /* VFS negative dentries are incompatible with Encoding and
 608          * Case-insensitiveness. Eventually we'll want avoid
 609          * invalidating the dentries here, alongside with returning the
 610          * negative dentries at f2fs_lookup(), when it is better
 611          * supported by the VFS for the CI case.
 612          */
 613         if (IS_CASEFOLDED(dir))
 614                 d_invalidate(dentry);
 615 #endif
 616         f2fs_unlock_op(sbi);
 617
 618         if (IS_DIRSYNC(dir))
 619                 f2fs_sync_fs(sbi->sb, 1);
 620 fail:
 621         trace_f2fs_unlink_exit(inode, err);
 622         return err;
 623 }
 624
 625 static const char *f2fs_get_link(struct dentry *dentry,
 626                                  struct inode *inode,
 627                                  struct delayed_call *done)
 628 {
 629         const char *link = page_get_link(dentry, inode, done);
 630         if (!IS_ERR(link) && !*link) {
 631                 /* this is broken symlink case */
 632                 do_delayed_call(done);
 633                 clear_delayed_call(done);
 634                 link = ERR_PTR(-ENOENT);
 635         }
 636         return link;
 637 }
 638
 639 static int f2fs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
 640                         struct dentry *dentry, const char *symname)
 641 {
 642         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 643         struct inode *inode;
 644         size_t len = strlen(symname);
 645         struct fscrypt_str disk_link;
 646         int err;
 647
 648         if (unlikely(f2fs_cp_error(sbi)))
 649                 return -EIO;
 650         if (!f2fs_is_checkpoint_ready(sbi))
 651                 return -ENOSPC;
 652
 653         err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
 654                                       &disk_link);
 655         if (err)
 656                 return err;
 657
 658         err = dquot_initialize(dir);
 659         if (err)
 660                 return err;
 661
 662         inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO);
 663         if (IS_ERR(inode))
 664                 return PTR_ERR(inode);
 665
 666         if (IS_ENCRYPTED(inode))
 667                 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
 668         else
 669                 inode->i_op = &f2fs_symlink_inode_operations;
 670         inode_nohighmem(inode);
 671         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 672
 673         f2fs_lock_op(sbi);
 674         err = f2fs_add_link(dentry, inode);
 675         if (err)
 676                 goto out_f2fs_handle_failed_inode;
 677         f2fs_unlock_op(sbi);
 678         f2fs_alloc_nid_done(sbi, inode->i_ino);
 679
 680         err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
 681         if (err)
 682                 goto err_out;
 683
 684         err = page_symlink(inode, disk_link.name, disk_link.len);
 685
 686 err_out:
 687         d_instantiate_new(dentry, inode);
 688
 689         /*
 690          * Let's flush symlink data in order to avoid broken symlink as much as
 691          * possible. Nevertheless, fsyncing is the best way, but there is no
 692          * way to get a file descriptor in order to flush that.
 693          *
 694          * Note that, it needs to do dir->fsync to make this recoverable.
 695          * If the symlink path is stored into inline_data, there is no
 696          * performance regression.
 697          */
 698         if (!err) {
 699                 filemap_write_and_wait_range(inode->i_mapping, 0,
 700                                                         disk_link.len - 1);
 701
 702                 if (IS_DIRSYNC(dir))
 703                         f2fs_sync_fs(sbi->sb, 1);
 704         } else {
 705                 f2fs_unlink(dir, dentry);
 706         }
 707
 708         f2fs_balance_fs(sbi, true);
 709         goto out_free_encrypted_link;
 710
 711 out_f2fs_handle_failed_inode:
 712         f2fs_handle_failed_inode(inode);
 713 out_free_encrypted_link:
 714         if (disk_link.name != (unsigned char *)symname)
 715                 kfree(disk_link.name);
 716         return err;
 717 }
 718
 719 static int f2fs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
 720                       struct dentry *dentry, umode_t mode)
 721 {
 722         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 723         struct inode *inode;
 724         int err;
 725
 726         if (unlikely(f2fs_cp_error(sbi)))
 727                 return -EIO;
 728
 729         err = dquot_initialize(dir);
 730         if (err)
 731                 return err;
 732
 733         inode = f2fs_new_inode(dir, S_IFDIR | mode);
 734         if (IS_ERR(inode))
 735                 return PTR_ERR(inode);
 736
 737         inode->i_op = &f2fs_dir_inode_operations;
 738         inode->i_fop = &f2fs_dir_operations;
 739         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 740         inode_nohighmem(inode);
 741
 742         set_inode_flag(inode, FI_INC_LINK);
 743         f2fs_lock_op(sbi);
 744         err = f2fs_add_link(dentry, inode);
 745         if (err)
 746                 goto out_fail;
 747         f2fs_unlock_op(sbi);
 748
 749         f2fs_alloc_nid_done(sbi, inode->i_ino);
 750
 751         d_instantiate_new(dentry, inode);
 752
 753         if (IS_DIRSYNC(dir))
 754                 f2fs_sync_fs(sbi->sb, 1);
 755
 756         f2fs_balance_fs(sbi, true);
 757         return 0;
 758
 759 out_fail:
 760         clear_inode_flag(inode, FI_INC_LINK);
 761         f2fs_handle_failed_inode(inode);
 762         return err;
 763 }
 764
 765 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
 766 {
 767         struct inode *inode = d_inode(dentry);
 768         if (f2fs_empty_dir(inode))
 769                 return f2fs_unlink(dir, dentry);
 770         return -ENOTEMPTY;
 771 }
 772
 773 static int f2fs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
 774                       struct dentry *dentry, umode_t mode, dev_t rdev)
 775 {
 776         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 777         struct inode *inode;
 778         int err = 0;
 779
 780         if (unlikely(f2fs_cp_error(sbi)))
 781                 return -EIO;
 782         if (!f2fs_is_checkpoint_ready(sbi))
 783                 return -ENOSPC;
 784
 785         err = dquot_initialize(dir);
 786         if (err)
 787                 return err;
 788
 789         inode = f2fs_new_inode(dir, mode);
 790         if (IS_ERR(inode))
 791                 return PTR_ERR(inode);
 792
 793         init_special_inode(inode, inode->i_mode, rdev);
 794         inode->i_op = &f2fs_special_inode_operations;
 795
 796         f2fs_lock_op(sbi);
 797         err = f2fs_add_link(dentry, inode);
 798         if (err)
 799                 goto out;
 800         f2fs_unlock_op(sbi);
 801
 802         f2fs_alloc_nid_done(sbi, inode->i_ino);
 803
 804         d_instantiate_new(dentry, inode);
 805
 806         if (IS_DIRSYNC(dir))
 807                 f2fs_sync_fs(sbi->sb, 1);
 808
 809         f2fs_balance_fs(sbi, true);
 810         return 0;
 811 out:
 812         f2fs_handle_failed_inode(inode);
 813         return err;
 814 }
 815
 816 static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
 817                                         umode_t mode, struct inode **whiteout)
 818 {
 819         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 820         struct inode *inode;
 821         int err;
 822
 823         err = dquot_initialize(dir);
 824         if (err)
 825                 return err;
 826
 827         inode = f2fs_new_inode(dir, mode);
 828         if (IS_ERR(inode))
 829                 return PTR_ERR(inode);
 830
 831         if (whiteout) {
 832                 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
 833                 inode->i_op = &f2fs_special_inode_operations;
 834         } else {
 835                 inode->i_op = &f2fs_file_inode_operations;
 836                 inode->i_fop = &f2fs_file_operations;
 837                 inode->i_mapping->a_ops = &f2fs_dblock_aops;
 838         }
 839
 840         f2fs_lock_op(sbi);
 841         err = f2fs_acquire_orphan_inode(sbi);
 842         if (err)
 843                 goto out;
 844
 845         err = f2fs_do_tmpfile(inode, dir);
 846         if (err)
 847                 goto release_out;
 848
 849         /*
 850          * add this non-linked tmpfile to orphan list, in this way we could
 851          * remove all unused data of tmpfile after abnormal power-off.
 852          */
 853         f2fs_add_orphan_inode(inode);
 854         f2fs_alloc_nid_done(sbi, inode->i_ino);
 855
 856         if (whiteout) {
 857                 f2fs_i_links_write(inode, false);
 858
 859                 spin_lock(&inode->i_lock);
 860                 inode->i_state |= I_LINKABLE;
 861                 spin_unlock(&inode->i_lock);
 862
 863                 *whiteout = inode;
 864         } else {
 865                 d_tmpfile(dentry, inode);
 866         }
 867         /* link_count was changed by d_tmpfile as well. */
 868         f2fs_unlock_op(sbi);
 869         unlock_new_inode(inode);
 870
 871         f2fs_balance_fs(sbi, true);
 872         return 0;
 873
 874 release_out:
 875         f2fs_release_orphan_inode(sbi);
 876 out:
 877         f2fs_handle_failed_inode(inode);
 878         return err;
 879 }
 880
 881 static int f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
 882                         struct dentry *dentry, umode_t mode)
 883 {
 884         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 885
 886         if (unlikely(f2fs_cp_error(sbi)))
 887                 return -EIO;
 888         if (!f2fs_is_checkpoint_ready(sbi))
 889                 return -ENOSPC;
 890
 891         return __f2fs_tmpfile(dir, dentry, mode, NULL);
 892 }
 893
 894 static int f2fs_create_whiteout(struct inode *dir, struct inode **whiteout)
 895 {
 896         if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
 897                 return -EIO;
 898
 899         return __f2fs_tmpfile(dir, NULL, S_IFCHR | WHITEOUT_MODE, whiteout);
 900 }
 901
 902 static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 903                         struct inode *new_dir, struct dentry *new_dentry,
 904                         unsigned int flags)
 905 {
 906         struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
 907         struct inode *old_inode = d_inode(old_dentry);
 908         struct inode *new_inode = d_inode(new_dentry);
 909         struct inode *whiteout = NULL;
 910         struct page *old_dir_page = NULL;
 911         struct page *old_page, *new_page = NULL;
 912         struct f2fs_dir_entry *old_dir_entry = NULL;
 913         struct f2fs_dir_entry *old_entry;
 914         struct f2fs_dir_entry *new_entry;
 915         int err;
 916
 917         if (unlikely(f2fs_cp_error(sbi)))
 918                 return -EIO;
 919         if (!f2fs_is_checkpoint_ready(sbi))
 920                 return -ENOSPC;
 921
 922         if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
 923                         (!projid_eq(F2FS_I(new_dir)->i_projid,
 924                         F2FS_I(old_dentry->d_inode)->i_projid)))
 925                 return -EXDEV;
 926
 927         /*
 928          * If new_inode is null, the below renaming flow will
 929          * add a link in old_dir which can conver inline_dir.
 930          * After then, if we failed to get the entry due to other
 931          * reasons like ENOMEM, we had to remove the new entry.
 932          * Instead of adding such the error handling routine, let's
 933          * simply convert first here.
 934          */
 935         if (old_dir == new_dir && !new_inode) {
 936                 err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
 937                 if (err)
 938                         return err;
 939         }
 940
 941         if (flags & RENAME_WHITEOUT) {
 942                 err = f2fs_create_whiteout(old_dir, &whiteout);
 943                 if (err)
 944                         return err;
 945         }
 946
 947         err = dquot_initialize(old_dir);
 948         if (err)
 949                 goto out;
 950
 951         err = dquot_initialize(new_dir);
 952         if (err)
 953                 goto out;
 954
 955         if (new_inode) {
 956                 err = dquot_initialize(new_inode);
 957                 if (err)
 958                         goto out;
 959         }
 960
 961         err = -ENOENT;
 962         old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
 963         if (!old_entry) {
 964                 if (IS_ERR(old_page))
 965                         err = PTR_ERR(old_page);
 966                 goto out;
 967         }
 968
 969         if (S_ISDIR(old_inode->i_mode)) {
 970                 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page);
 971                 if (!old_dir_entry) {
 972                         if (IS_ERR(old_dir_page))
 973                                 err = PTR_ERR(old_dir_page);
 974                         goto out_old;
 975                 }
 976         }
 977
 978         if (new_inode) {
 979
 980                 err = -ENOTEMPTY;
 981                 if (old_dir_entry && !f2fs_empty_dir(new_inode))
 982                         goto out_dir;
 983
 984                 err = -ENOENT;
 985                 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name,
 986                                                 &new_page);
 987                 if (!new_entry) {
 988                         if (IS_ERR(new_page))
 989                                 err = PTR_ERR(new_page);
 990                         goto out_dir;
 991                 }
 992
 993                 f2fs_balance_fs(sbi, true);
 994
 995                 f2fs_lock_op(sbi);
 996
 997                 err = f2fs_acquire_orphan_inode(sbi);
 998                 if (err)
 999                         goto put_out_dir;
1000
1001                 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1002                 new_page = NULL;
1003
1004                 new_inode->i_ctime = current_time(new_inode);
1005                 down_write(&F2FS_I(new_inode)->i_sem);
1006                 if (old_dir_entry)
1007                         f2fs_i_links_write(new_inode, false);
1008                 f2fs_i_links_write(new_inode, false);
1009                 up_write(&F2FS_I(new_inode)->i_sem);
1010
1011                 if (!new_inode->i_nlink)
1012                         f2fs_add_orphan_inode(new_inode);
1013                 else
1014                         f2fs_release_orphan_inode(sbi);
1015         } else {
1016                 f2fs_balance_fs(sbi, true);
1017
1018                 f2fs_lock_op(sbi);
1019
1020                 err = f2fs_add_link(new_dentry, old_inode);
1021                 if (err) {
1022                         f2fs_unlock_op(sbi);
1023                         goto out_dir;
1024                 }
1025
1026                 if (old_dir_entry)
1027                         f2fs_i_links_write(new_dir, true);
1028         }
1029
1030         down_write(&F2FS_I(old_inode)->i_sem);
1031         if (!old_dir_entry || whiteout)
1032                 file_lost_pino(old_inode);
1033         else
1034                 /* adjust dir's i_pino to pass fsck check */
1035                 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1036         up_write(&F2FS_I(old_inode)->i_sem);
1037
1038         old_inode->i_ctime = current_time(old_inode);
1039         f2fs_mark_inode_dirty_sync(old_inode, false);
1040
1041         f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
1042         old_page = NULL;
1043
1044         if (whiteout) {
1045                 set_inode_flag(whiteout, FI_INC_LINK);
1046                 err = f2fs_add_link(old_dentry, whiteout);
1047                 if (err)
1048                         goto put_out_dir;
1049
1050                 spin_lock(&whiteout->i_lock);
1051                 whiteout->i_state &= ~I_LINKABLE;
1052                 spin_unlock(&whiteout->i_lock);
1053
1054                 iput(whiteout);
1055         }
1056
1057         if (old_dir_entry) {
1058                 if (old_dir != new_dir && !whiteout)
1059                         f2fs_set_link(old_inode, old_dir_entry,
1060                                                 old_dir_page, new_dir);
1061                 else
1062                         f2fs_put_page(old_dir_page, 0);
1063                 f2fs_i_links_write(old_dir, false);
1064         }
1065         if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1066                 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1067                 if (S_ISDIR(old_inode->i_mode))
1068                         f2fs_add_ino_entry(sbi, old_inode->i_ino,
1069                                                         TRANS_DIR_INO);
1070         }
1071
1072         f2fs_unlock_op(sbi);
1073
1074         if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1075                 f2fs_sync_fs(sbi->sb, 1);
1076
1077         f2fs_update_time(sbi, REQ_TIME);
1078         return 0;
1079
1080 put_out_dir:
1081         f2fs_unlock_op(sbi);
1082         f2fs_put_page(new_page, 0);
1083 out_dir:
1084         if (old_dir_entry)
1085                 f2fs_put_page(old_dir_page, 0);
1086 out_old:
1087         f2fs_put_page(old_page, 0);
1088 out:
1089         if (whiteout)
1090                 iput(whiteout);
1091         return err;
1092 }
1093
1094 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
1095                              struct inode *new_dir, struct dentry *new_dentry)
1096 {
1097         struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
1098         struct inode *old_inode = d_inode(old_dentry);
1099         struct inode *new_inode = d_inode(new_dentry);
1100         struct page *old_dir_page, *new_dir_page;
1101         struct page *old_page, *new_page;
1102         struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
1103         struct f2fs_dir_entry *old_entry, *new_entry;
1104         int old_nlink = 0, new_nlink = 0;
1105         int err;
1106
1107         if (unlikely(f2fs_cp_error(sbi)))
1108                 return -EIO;
1109         if (!f2fs_is_checkpoint_ready(sbi))
1110                 return -ENOSPC;
1111
1112         if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1113                         !projid_eq(F2FS_I(new_dir)->i_projid,
1114                         F2FS_I(old_dentry->d_inode)->i_projid)) ||
1115             (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1116                         !projid_eq(F2FS_I(old_dir)->i_projid,
1117                         F2FS_I(new_dentry->d_inode)->i_projid)))
1118                 return -EXDEV;
1119
1120         err = dquot_initialize(old_dir);
1121         if (err)
1122                 goto out;
1123
1124         err = dquot_initialize(new_dir);
1125         if (err)
1126                 goto out;
1127
1128         err = -ENOENT;
1129         old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1130         if (!old_entry) {
1131                 if (IS_ERR(old_page))
1132                         err = PTR_ERR(old_page);
1133                 goto out;
1134         }
1135
1136         new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1137         if (!new_entry) {
1138                 if (IS_ERR(new_page))
1139                         err = PTR_ERR(new_page);
1140                 goto out_old;
1141         }
1142
1143         /* prepare for updating ".." directory entry info later */
1144         if (old_dir != new_dir) {
1145                 if (S_ISDIR(old_inode->i_mode)) {
1146                         old_dir_entry = f2fs_parent_dir(old_inode,
1147                                                         &old_dir_page);
1148                         if (!old_dir_entry) {
1149                                 if (IS_ERR(old_dir_page))
1150                                         err = PTR_ERR(old_dir_page);
1151                                 goto out_new;
1152                         }
1153                 }
1154
1155                 if (S_ISDIR(new_inode->i_mode)) {
1156                         new_dir_entry = f2fs_parent_dir(new_inode,
1157                                                         &new_dir_page);
1158                         if (!new_dir_entry) {
1159                                 if (IS_ERR(new_dir_page))
1160                                         err = PTR_ERR(new_dir_page);
1161                                 goto out_old_dir;
1162                         }
1163                 }
1164         }
1165
1166         /*
1167          * If cross rename between file and directory those are not
1168          * in the same directory, we will inc nlink of file's parent
1169          * later, so we should check upper boundary of its nlink.
1170          */
1171         if ((!old_dir_entry || !new_dir_entry) &&
1172                                 old_dir_entry != new_dir_entry) {
1173                 old_nlink = old_dir_entry ? -1 : 1;
1174                 new_nlink = -old_nlink;
1175                 err = -EMLINK;
1176                 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) ||
1177                         (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX))
1178                         goto out_new_dir;
1179         }
1180
1181         f2fs_balance_fs(sbi, true);
1182
1183         f2fs_lock_op(sbi);
1184
1185         /* update ".." directory entry info of old dentry */
1186         if (old_dir_entry)
1187                 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir);
1188
1189         /* update ".." directory entry info of new dentry */
1190         if (new_dir_entry)
1191                 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir);
1192
1193         /* update directory entry info of old dir inode */
1194         f2fs_set_link(old_dir, old_entry, old_page, new_inode);
1195
1196         down_write(&F2FS_I(old_inode)->i_sem);
1197         if (!old_dir_entry)
1198                 file_lost_pino(old_inode);
1199         else
1200                 /* adjust dir's i_pino to pass fsck check */
1201                 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1202         up_write(&F2FS_I(old_inode)->i_sem);
1203
1204         old_dir->i_ctime = current_time(old_dir);
1205         if (old_nlink) {
1206                 down_write(&F2FS_I(old_dir)->i_sem);
1207                 f2fs_i_links_write(old_dir, old_nlink > 0);
1208                 up_write(&F2FS_I(old_dir)->i_sem);
1209         }
1210         f2fs_mark_inode_dirty_sync(old_dir, false);
1211
1212         /* update directory entry info of new dir inode */
1213         f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1214
1215         down_write(&F2FS_I(new_inode)->i_sem);
1216         if (!new_dir_entry)
1217                 file_lost_pino(new_inode);
1218         else
1219                 /* adjust dir's i_pino to pass fsck check */
1220                 f2fs_i_pino_write(new_inode, old_dir->i_ino);
1221         up_write(&F2FS_I(new_inode)->i_sem);
1222
1223         new_dir->i_ctime = current_time(new_dir);
1224         if (new_nlink) {
1225                 down_write(&F2FS_I(new_dir)->i_sem);
1226                 f2fs_i_links_write(new_dir, new_nlink > 0);
1227                 up_write(&F2FS_I(new_dir)->i_sem);
1228         }
1229         f2fs_mark_inode_dirty_sync(new_dir, false);
1230
1231         if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1232                 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
1233                 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1234         }
1235
1236         f2fs_unlock_op(sbi);
1237
1238         if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1239                 f2fs_sync_fs(sbi->sb, 1);
1240
1241         f2fs_update_time(sbi, REQ_TIME);
1242         return 0;
1243 out_new_dir:
1244         if (new_dir_entry) {
1245                 f2fs_put_page(new_dir_page, 0);
1246         }
1247 out_old_dir:
1248         if (old_dir_entry) {
1249                 f2fs_put_page(old_dir_page, 0);
1250         }
1251 out_new:
1252         f2fs_put_page(new_page, 0);
1253 out_old:
1254         f2fs_put_page(old_page, 0);
1255 out:
1256         return err;
1257 }
1258
1259 static int f2fs_rename2(struct user_namespace *mnt_userns,
1260                         struct inode *old_dir, struct dentry *old_dentry,
1261                         struct inode *new_dir, struct dentry *new_dentry,
1262                         unsigned int flags)
1263 {
1264         int err;
1265
1266         if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
1267                 return -EINVAL;
1268
1269         err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1270                                      flags);
1271         if (err)
1272                 return err;
1273
1274         if (flags & RENAME_EXCHANGE) {
1275                 return f2fs_cross_rename(old_dir, old_dentry,
1276                                          new_dir, new_dentry);
1277         }
1278         /*
1279          * VFS has already handled the new dentry existence case,
1280          * here, we just deal with "RENAME_NOREPLACE" as regular rename.
1281          */
1282         return f2fs_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
1283 }
1284
1285 static const char *f2fs_encrypted_get_link(struct dentry *dentry,
1286                                            struct inode *inode,
1287                                            struct delayed_call *done)
1288 {
1289         struct page *page;
1290         const char *target;
1291
1292         if (!dentry)
1293                 return ERR_PTR(-ECHILD);
1294
1295         page = read_mapping_page(inode->i_mapping, 0, NULL);
1296         if (IS_ERR(page))
1297                 return ERR_CAST(page);
1298
1299         target = fscrypt_get_symlink(inode, page_address(page),
1300                                      inode->i_sb->s_blocksize, done);
1301         put_page(page);
1302         return target;
1303 }
1304
1305 const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
1306         .get_link       = f2fs_encrypted_get_link,
1307         .getattr        = f2fs_getattr,
1308         .setattr        = f2fs_setattr,
1309         .listxattr      = f2fs_listxattr,
1310 };
1311
1312 const struct inode_operations f2fs_dir_inode_operations = {
1313         .create         = f2fs_create,
1314         .lookup         = f2fs_lookup,
1315         .link           = f2fs_link,
1316         .unlink         = f2fs_unlink,
1317         .symlink        = f2fs_symlink,
1318         .mkdir          = f2fs_mkdir,
1319         .rmdir          = f2fs_rmdir,
1320         .mknod          = f2fs_mknod,
1321         .rename         = f2fs_rename2,
1322         .tmpfile        = f2fs_tmpfile,
1323         .getattr        = f2fs_getattr,
1324         .setattr        = f2fs_setattr,
1325         .get_acl        = f2fs_get_acl,
1326         .set_acl        = f2fs_set_acl,
1327         .listxattr      = f2fs_listxattr,
1328         .fiemap         = f2fs_fiemap,
1329         .fileattr_get   = f2fs_fileattr_get,
1330         .fileattr_set   = f2fs_fileattr_set,
1331 };
1332
1333 const struct inode_operations f2fs_symlink_inode_operations = {
1334         .get_link       = f2fs_get_link,
1335         .getattr        = f2fs_getattr,
1336         .setattr        = f2fs_setattr,
1337         .listxattr      = f2fs_listxattr,
1338 };
1339
1340 const struct inode_operations f2fs_special_inode_operations = {
1341         .getattr        = f2fs_getattr,
1342         .setattr        = f2fs_setattr,
1343         .get_acl        = f2fs_get_acl,
1344         .set_acl        = f2fs_set_acl,
1345         .listxattr      = f2fs_listxattr,
1346 };