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 the directory encrypted, then we should encrypt the inode. */
  79         if ((IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) &&
  80                                 f2fs_may_encrypt(inode))
  81                 f2fs_set_encrypted_inode(inode);
  82
  83         if (f2fs_sb_has_extra_attr(sbi)) {
  84                 set_inode_flag(inode, FI_EXTRA_ATTR);
  85                 F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE;
  86         }
  87
  88         if (test_opt(sbi, INLINE_XATTR))
  89                 set_inode_flag(inode, FI_INLINE_XATTR);
  90
  91         if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
  92                 set_inode_flag(inode, FI_INLINE_DATA);
  93         if (f2fs_may_inline_dentry(inode))
  94                 set_inode_flag(inode, FI_INLINE_DENTRY);
  95
  96         if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
  97                 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
  98                 if (f2fs_has_inline_xattr(inode))
  99                         xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
 100                 /* Otherwise, will be 0 */
 101         } else if (f2fs_has_inline_xattr(inode) ||
 102                                 f2fs_has_inline_dentry(inode)) {
 103                 xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
 104         }
 105         F2FS_I(inode)->i_inline_xattr_size = xattr_size;
 106
 107         f2fs_init_extent_tree(inode, NULL);
 108
 109         stat_inc_inline_xattr(inode);
 110         stat_inc_inline_inode(inode);
 111         stat_inc_inline_dir(inode);
 112
 113         F2FS_I(inode)->i_flags =
 114                 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
 115
 116         if (S_ISDIR(inode->i_mode))
 117                 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL;
 118
 119         if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
 120                 set_inode_flag(inode, FI_PROJ_INHERIT);
 121
 122         if (f2fs_sb_has_compression(sbi)) {
 123                 /* Inherit the compression flag in directory */
 124                 if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) &&
 125                                         f2fs_may_compress(inode))
 126                         set_compress_context(inode);
 127         }
 128
 129         f2fs_set_inode_flags(inode);
 130
 131         trace_f2fs_new_inode(inode, 0);
 132         return inode;
 133
 134 fail:
 135         trace_f2fs_new_inode(inode, err);
 136         make_bad_inode(inode);
 137         if (nid_free)
 138                 set_inode_flag(inode, FI_FREE_NID);
 139         iput(inode);
 140         return ERR_PTR(err);
 141 fail_drop:
 142         trace_f2fs_new_inode(inode, err);
 143         dquot_drop(inode);
 144         inode->i_flags |= S_NOQUOTA;
 145         if (nid_free)
 146                 set_inode_flag(inode, FI_FREE_NID);
 147         clear_nlink(inode);
 148         unlock_new_inode(inode);
 149         iput(inode);
 150         return ERR_PTR(err);
 151 }
 152
 153 static inline int is_extension_exist(const unsigned char *s, const char *sub)
 154 {
 155         size_t slen = strlen(s);
 156         size_t sublen = strlen(sub);
 157         int i;
 158
 159         if (sublen == 1 && *sub == '*')
 160                 return 1;
 161
 162         /*
 163          * filename format of multimedia file should be defined as:
 164          * "filename + '.' + extension + (optional: '.' + temp extension)".
 165          */
 166         if (slen < sublen + 2)
 167                 return 0;
 168
 169         for (i = 1; i < slen - sublen; i++) {
 170                 if (s[i] != '.')
 171                         continue;
 172                 if (!strncasecmp(s + i + 1, sub, sublen))
 173                         return 1;
 174         }
 175
 176         return 0;
 177 }
 178
 179 /*
 180  * Set multimedia files as cold files for hot/cold data separation
 181  */
 182 static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
 183                 const unsigned char *name)
 184 {
 185         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 186         int i, cold_count, hot_count;
 187
 188         down_read(&sbi->sb_lock);
 189
 190         cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 191         hot_count = sbi->raw_super->hot_ext_count;
 192
 193         for (i = 0; i < cold_count + hot_count; i++) {
 194                 if (is_extension_exist(name, extlist[i]))
 195                         break;
 196         }
 197
 198         up_read(&sbi->sb_lock);
 199
 200         if (i == cold_count + hot_count)
 201                 return;
 202
 203         if (i < cold_count)
 204                 file_set_cold(inode);
 205         else
 206                 file_set_hot(inode);
 207 }
 208
 209 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
 210                                                         bool hot, bool set)
 211 {
 212         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 213         int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 214         int hot_count = sbi->raw_super->hot_ext_count;
 215         int total_count = cold_count + hot_count;
 216         int start, count;
 217         int i;
 218
 219         if (set) {
 220                 if (total_count == F2FS_MAX_EXTENSION)
 221                         return -EINVAL;
 222         } else {
 223                 if (!hot && !cold_count)
 224                         return -EINVAL;
 225                 if (hot && !hot_count)
 226                         return -EINVAL;
 227         }
 228
 229         if (hot) {
 230                 start = cold_count;
 231                 count = total_count;
 232         } else {
 233                 start = 0;
 234                 count = cold_count;
 235         }
 236
 237         for (i = start; i < count; i++) {
 238                 if (strcmp(name, extlist[i]))
 239                         continue;
 240
 241                 if (set)
 242                         return -EINVAL;
 243
 244                 memcpy(extlist[i], extlist[i + 1],
 245                                 F2FS_EXTENSION_LEN * (total_count - i - 1));
 246                 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN);
 247                 if (hot)
 248                         sbi->raw_super->hot_ext_count = hot_count - 1;
 249                 else
 250                         sbi->raw_super->extension_count =
 251                                                 cpu_to_le32(cold_count - 1);
 252                 return 0;
 253         }
 254
 255         if (!set)
 256                 return -EINVAL;
 257
 258         if (hot) {
 259                 memcpy(extlist[count], name, strlen(name));
 260                 sbi->raw_super->hot_ext_count = hot_count + 1;
 261         } else {
 262                 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN];
 263
 264                 memcpy(buf, &extlist[cold_count],
 265                                 F2FS_EXTENSION_LEN * hot_count);
 266                 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN);
 267                 memcpy(extlist[cold_count], name, strlen(name));
 268                 memcpy(&extlist[cold_count + 1], buf,
 269                                 F2FS_EXTENSION_LEN * hot_count);
 270                 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1);
 271         }
 272         return 0;
 273 }
 274
 275 static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
 276                                                 const unsigned char *name)
 277 {
 278         __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
 279         unsigned char (*ext)[F2FS_EXTENSION_LEN];
 280         unsigned int ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
 281         int i, cold_count, hot_count;
 282
 283         if (!f2fs_sb_has_compression(sbi) ||
 284                         is_inode_flag_set(inode, FI_COMPRESSED_FILE) ||
 285                         F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
 286                         !f2fs_may_compress(inode))
 287                 return;
 288
 289         down_read(&sbi->sb_lock);
 290
 291         cold_count = le32_to_cpu(sbi->raw_super->extension_count);
 292         hot_count = sbi->raw_super->hot_ext_count;
 293
 294         for (i = cold_count; i < cold_count + hot_count; i++) {
 295                 if (is_extension_exist(name, extlist[i])) {
 296                         up_read(&sbi->sb_lock);
 297                         return;
 298                 }
 299         }
 300
 301         up_read(&sbi->sb_lock);
 302
 303         ext = F2FS_OPTION(sbi).extensions;
 304
 305         for (i = 0; i < ext_cnt; i++) {
 306                 if (!is_extension_exist(name, ext[i]))
 307                         continue;
 308
 309                 set_compress_context(inode);
 310                 return;
 311         }
 312 }
 313
 314 static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 315                                                 bool excl)
 316 {
 317         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 318         struct inode *inode;
 319         nid_t ino = 0;
 320         int err;
 321
 322         if (unlikely(f2fs_cp_error(sbi)))
 323                 return -EIO;
 324         if (!f2fs_is_checkpoint_ready(sbi))
 325                 return -ENOSPC;
 326
 327         err = dquot_initialize(dir);
 328         if (err)
 329                 return err;
 330
 331         inode = f2fs_new_inode(dir, mode);
 332         if (IS_ERR(inode))
 333                 return PTR_ERR(inode);
 334
 335         if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
 336                 set_file_temperature(sbi, inode, dentry->d_name.name);
 337
 338         set_compress_inode(sbi, inode, dentry->d_name.name);
 339
 340         inode->i_op = &f2fs_file_inode_operations;
 341         inode->i_fop = &f2fs_file_operations;
 342         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 343         ino = inode->i_ino;
 344
 345         f2fs_lock_op(sbi);
 346         err = f2fs_add_link(dentry, inode);
 347         if (err)
 348                 goto out;
 349         f2fs_unlock_op(sbi);
 350
 351         f2fs_alloc_nid_done(sbi, ino);
 352
 353         d_instantiate_new(dentry, inode);
 354
 355         if (IS_DIRSYNC(dir))
 356                 f2fs_sync_fs(sbi->sb, 1);
 357
 358         f2fs_balance_fs(sbi, true);
 359         return 0;
 360 out:
 361         f2fs_handle_failed_inode(inode);
 362         return err;
 363 }
 364
 365 static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
 366                 struct dentry *dentry)
 367 {
 368         struct inode *inode = d_inode(old_dentry);
 369         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 370         int err;
 371
 372         if (unlikely(f2fs_cp_error(sbi)))
 373                 return -EIO;
 374         if (!f2fs_is_checkpoint_ready(sbi))
 375                 return -ENOSPC;
 376
 377         err = fscrypt_prepare_link(old_dentry, dir, dentry);
 378         if (err)
 379                 return err;
 380
 381         if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
 382                         (!projid_eq(F2FS_I(dir)->i_projid,
 383                         F2FS_I(old_dentry->d_inode)->i_projid)))
 384                 return -EXDEV;
 385
 386         err = dquot_initialize(dir);
 387         if (err)
 388                 return err;
 389
 390         f2fs_balance_fs(sbi, true);
 391
 392         inode->i_ctime = current_time(inode);
 393         ihold(inode);
 394
 395         set_inode_flag(inode, FI_INC_LINK);
 396         f2fs_lock_op(sbi);
 397         err = f2fs_add_link(dentry, inode);
 398         if (err)
 399                 goto out;
 400         f2fs_unlock_op(sbi);
 401
 402         d_instantiate(dentry, inode);
 403
 404         if (IS_DIRSYNC(dir))
 405                 f2fs_sync_fs(sbi->sb, 1);
 406         return 0;
 407 out:
 408         clear_inode_flag(inode, FI_INC_LINK);
 409         iput(inode);
 410         f2fs_unlock_op(sbi);
 411         return err;
 412 }
 413
 414 struct dentry *f2fs_get_parent(struct dentry *child)
 415 {
 416         struct qstr dotdot = QSTR_INIT("..", 2);
 417         struct page *page;
 418         unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot, &page);
 419         if (!ino) {
 420                 if (IS_ERR(page))
 421                         return ERR_CAST(page);
 422                 return ERR_PTR(-ENOENT);
 423         }
 424         return d_obtain_alias(f2fs_iget(child->d_sb, ino));
 425 }
 426
 427 static int __recover_dot_dentries(struct inode *dir, nid_t pino)
 428 {
 429         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 430         struct qstr dot = QSTR_INIT(".", 1);
 431         struct qstr dotdot = QSTR_INIT("..", 2);
 432         struct f2fs_dir_entry *de;
 433         struct page *page;
 434         int err = 0;
 435
 436         if (f2fs_readonly(sbi->sb)) {
 437                 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint",
 438                           dir->i_ino, pino);
 439                 return 0;
 440         }
 441
 442         err = dquot_initialize(dir);
 443         if (err)
 444                 return err;
 445
 446         f2fs_balance_fs(sbi, true);
 447
 448         f2fs_lock_op(sbi);
 449
 450         de = f2fs_find_entry(dir, &dot, &page);
 451         if (de) {
 452                 f2fs_put_page(page, 0);
 453         } else if (IS_ERR(page)) {
 454                 err = PTR_ERR(page);
 455                 goto out;
 456         } else {
 457                 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR);
 458                 if (err)
 459                         goto out;
 460         }
 461
 462         de = f2fs_find_entry(dir, &dotdot, &page);
 463         if (de)
 464                 f2fs_put_page(page, 0);
 465         else if (IS_ERR(page))
 466                 err = PTR_ERR(page);
 467         else
 468                 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR);
 469 out:
 470         if (!err)
 471                 clear_inode_flag(dir, FI_INLINE_DOTS);
 472
 473         f2fs_unlock_op(sbi);
 474         return err;
 475 }
 476
 477 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
 478                 unsigned int flags)
 479 {
 480         struct inode *inode = NULL;
 481         struct f2fs_dir_entry *de;
 482         struct page *page;
 483         struct dentry *new;
 484         nid_t ino = -1;
 485         int err = 0;
 486         unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
 487         struct fscrypt_name fname;
 488
 489         trace_f2fs_lookup_start(dir, dentry, flags);
 490
 491         if (dentry->d_name.len > F2FS_NAME_LEN) {
 492                 err = -ENAMETOOLONG;
 493                 goto out;
 494         }
 495
 496         err = fscrypt_prepare_lookup(dir, dentry, &fname);
 497         if (err == -ENOENT)
 498                 goto out_splice;
 499         if (err)
 500                 goto out;
 501         de = __f2fs_find_entry(dir, &fname, &page);
 502         fscrypt_free_filename(&fname);
 503
 504         if (!de) {
 505                 if (IS_ERR(page)) {
 506                         err = PTR_ERR(page);
 507                         goto out;
 508                 }
 509                 goto out_splice;
 510         }
 511
 512         ino = le32_to_cpu(de->ino);
 513         f2fs_put_page(page, 0);
 514
 515         inode = f2fs_iget(dir->i_sb, ino);
 516         if (IS_ERR(inode)) {
 517                 err = PTR_ERR(inode);
 518                 goto out;
 519         }
 520
 521         if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
 522                 err = __recover_dot_dentries(dir, root_ino);
 523                 if (err)
 524                         goto out_iput;
 525         }
 526
 527         if (f2fs_has_inline_dots(inode)) {
 528                 err = __recover_dot_dentries(inode, dir->i_ino);
 529                 if (err)
 530                         goto out_iput;
 531         }
 532         if (IS_ENCRYPTED(dir) &&
 533             (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
 534             !fscrypt_has_permitted_context(dir, inode)) {
 535                 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
 536                           dir->i_ino, inode->i_ino);
 537                 err = -EPERM;
 538                 goto out_iput;
 539         }
 540 out_splice:
 541 #ifdef CONFIG_UNICODE
 542         if (!inode && IS_CASEFOLDED(dir)) {
 543                 /* Eventually we want to call d_add_ci(dentry, NULL)
 544                  * for negative dentries in the encoding case as
 545                  * well.  For now, prevent the negative dentry
 546                  * from being cached.
 547                  */
 548                 trace_f2fs_lookup_end(dir, dentry, ino, err);
 549                 return NULL;
 550         }
 551 #endif
 552         new = d_splice_alias(inode, dentry);
 553         err = PTR_ERR_OR_ZERO(new);
 554         trace_f2fs_lookup_end(dir, dentry, ino, err);
 555         return new;
 556 out_iput:
 557         iput(inode);
 558 out:
 559         trace_f2fs_lookup_end(dir, dentry, ino, err);
 560         return ERR_PTR(err);
 561 }
 562
 563 static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 564 {
 565         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 566         struct inode *inode = d_inode(dentry);
 567         struct f2fs_dir_entry *de;
 568         struct page *page;
 569         int err = -ENOENT;
 570
 571         trace_f2fs_unlink_enter(dir, dentry);
 572
 573         if (unlikely(f2fs_cp_error(sbi)))
 574                 return -EIO;
 575
 576         err = dquot_initialize(dir);
 577         if (err)
 578                 return err;
 579         err = dquot_initialize(inode);
 580         if (err)
 581                 return err;
 582
 583         de = f2fs_find_entry(dir, &dentry->d_name, &page);
 584         if (!de) {
 585                 if (IS_ERR(page))
 586                         err = PTR_ERR(page);
 587                 goto fail;
 588         }
 589
 590         f2fs_balance_fs(sbi, true);
 591
 592         f2fs_lock_op(sbi);
 593         err = f2fs_acquire_orphan_inode(sbi);
 594         if (err) {
 595                 f2fs_unlock_op(sbi);
 596                 f2fs_put_page(page, 0);
 597                 goto fail;
 598         }
 599         f2fs_delete_entry(de, page, dir, inode);
 600 #ifdef CONFIG_UNICODE
 601         /* VFS negative dentries are incompatible with Encoding and
 602          * Case-insensitiveness. Eventually we'll want avoid
 603          * invalidating the dentries here, alongside with returning the
 604          * negative dentries at f2fs_lookup(), when it is  better
 605          * supported by the VFS for the CI case.
 606          */
 607         if (IS_CASEFOLDED(dir))
 608                 d_invalidate(dentry);
 609 #endif
 610         f2fs_unlock_op(sbi);
 611
 612         if (IS_DIRSYNC(dir))
 613                 f2fs_sync_fs(sbi->sb, 1);
 614 fail:
 615         trace_f2fs_unlink_exit(inode, err);
 616         return err;
 617 }
 618
 619 static const char *f2fs_get_link(struct dentry *dentry,
 620                                  struct inode *inode,
 621                                  struct delayed_call *done)
 622 {
 623         const char *link = page_get_link(dentry, inode, done);
 624         if (!IS_ERR(link) && !*link) {
 625                 /* this is broken symlink case */
 626                 do_delayed_call(done);
 627                 clear_delayed_call(done);
 628                 link = ERR_PTR(-ENOENT);
 629         }
 630         return link;
 631 }
 632
 633 static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
 634                                         const char *symname)
 635 {
 636         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 637         struct inode *inode;
 638         size_t len = strlen(symname);
 639         struct fscrypt_str disk_link;
 640         int err;
 641
 642         if (unlikely(f2fs_cp_error(sbi)))
 643                 return -EIO;
 644         if (!f2fs_is_checkpoint_ready(sbi))
 645                 return -ENOSPC;
 646
 647         err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
 648                                       &disk_link);
 649         if (err)
 650                 return err;
 651
 652         err = dquot_initialize(dir);
 653         if (err)
 654                 return err;
 655
 656         inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO);
 657         if (IS_ERR(inode))
 658                 return PTR_ERR(inode);
 659
 660         if (IS_ENCRYPTED(inode))
 661                 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
 662         else
 663                 inode->i_op = &f2fs_symlink_inode_operations;
 664         inode_nohighmem(inode);
 665         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 666
 667         f2fs_lock_op(sbi);
 668         err = f2fs_add_link(dentry, inode);
 669         if (err)
 670                 goto out_f2fs_handle_failed_inode;
 671         f2fs_unlock_op(sbi);
 672         f2fs_alloc_nid_done(sbi, inode->i_ino);
 673
 674         err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
 675         if (err)
 676                 goto err_out;
 677
 678         err = page_symlink(inode, disk_link.name, disk_link.len);
 679
 680 err_out:
 681         d_instantiate_new(dentry, inode);
 682
 683         /*
 684          * Let's flush symlink data in order to avoid broken symlink as much as
 685          * possible. Nevertheless, fsyncing is the best way, but there is no
 686          * way to get a file descriptor in order to flush that.
 687          *
 688          * Note that, it needs to do dir->fsync to make this recoverable.
 689          * If the symlink path is stored into inline_data, there is no
 690          * performance regression.
 691          */
 692         if (!err) {
 693                 filemap_write_and_wait_range(inode->i_mapping, 0,
 694                                                         disk_link.len - 1);
 695
 696                 if (IS_DIRSYNC(dir))
 697                         f2fs_sync_fs(sbi->sb, 1);
 698         } else {
 699                 f2fs_unlink(dir, dentry);
 700         }
 701
 702         f2fs_balance_fs(sbi, true);
 703         goto out_free_encrypted_link;
 704
 705 out_f2fs_handle_failed_inode:
 706         f2fs_handle_failed_inode(inode);
 707 out_free_encrypted_link:
 708         if (disk_link.name != (unsigned char *)symname)
 709                 kvfree(disk_link.name);
 710         return err;
 711 }
 712
 713 static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 714 {
 715         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 716         struct inode *inode;
 717         int err;
 718
 719         if (unlikely(f2fs_cp_error(sbi)))
 720                 return -EIO;
 721
 722         err = dquot_initialize(dir);
 723         if (err)
 724                 return err;
 725
 726         inode = f2fs_new_inode(dir, S_IFDIR | mode);
 727         if (IS_ERR(inode))
 728                 return PTR_ERR(inode);
 729
 730         inode->i_op = &f2fs_dir_inode_operations;
 731         inode->i_fop = &f2fs_dir_operations;
 732         inode->i_mapping->a_ops = &f2fs_dblock_aops;
 733         inode_nohighmem(inode);
 734
 735         set_inode_flag(inode, FI_INC_LINK);
 736         f2fs_lock_op(sbi);
 737         err = f2fs_add_link(dentry, inode);
 738         if (err)
 739                 goto out_fail;
 740         f2fs_unlock_op(sbi);
 741
 742         f2fs_alloc_nid_done(sbi, inode->i_ino);
 743
 744         d_instantiate_new(dentry, inode);
 745
 746         if (IS_DIRSYNC(dir))
 747                 f2fs_sync_fs(sbi->sb, 1);
 748
 749         f2fs_balance_fs(sbi, true);
 750         return 0;
 751
 752 out_fail:
 753         clear_inode_flag(inode, FI_INC_LINK);
 754         f2fs_handle_failed_inode(inode);
 755         return err;
 756 }
 757
 758 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
 759 {
 760         struct inode *inode = d_inode(dentry);
 761         if (f2fs_empty_dir(inode))
 762                 return f2fs_unlink(dir, dentry);
 763         return -ENOTEMPTY;
 764 }
 765
 766 static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
 767                                 umode_t mode, dev_t rdev)
 768 {
 769         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 770         struct inode *inode;
 771         int err = 0;
 772
 773         if (unlikely(f2fs_cp_error(sbi)))
 774                 return -EIO;
 775         if (!f2fs_is_checkpoint_ready(sbi))
 776                 return -ENOSPC;
 777
 778         err = dquot_initialize(dir);
 779         if (err)
 780                 return err;
 781
 782         inode = f2fs_new_inode(dir, mode);
 783         if (IS_ERR(inode))
 784                 return PTR_ERR(inode);
 785
 786         init_special_inode(inode, inode->i_mode, rdev);
 787         inode->i_op = &f2fs_special_inode_operations;
 788
 789         f2fs_lock_op(sbi);
 790         err = f2fs_add_link(dentry, inode);
 791         if (err)
 792                 goto out;
 793         f2fs_unlock_op(sbi);
 794
 795         f2fs_alloc_nid_done(sbi, inode->i_ino);
 796
 797         d_instantiate_new(dentry, inode);
 798
 799         if (IS_DIRSYNC(dir))
 800                 f2fs_sync_fs(sbi->sb, 1);
 801
 802         f2fs_balance_fs(sbi, true);
 803         return 0;
 804 out:
 805         f2fs_handle_failed_inode(inode);
 806         return err;
 807 }
 808
 809 static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
 810                                         umode_t mode, struct inode **whiteout)
 811 {
 812         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 813         struct inode *inode;
 814         int err;
 815
 816         err = dquot_initialize(dir);
 817         if (err)
 818                 return err;
 819
 820         inode = f2fs_new_inode(dir, mode);
 821         if (IS_ERR(inode))
 822                 return PTR_ERR(inode);
 823
 824         if (whiteout) {
 825                 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
 826                 inode->i_op = &f2fs_special_inode_operations;
 827         } else {
 828                 inode->i_op = &f2fs_file_inode_operations;
 829                 inode->i_fop = &f2fs_file_operations;
 830                 inode->i_mapping->a_ops = &f2fs_dblock_aops;
 831         }
 832
 833         f2fs_lock_op(sbi);
 834         err = f2fs_acquire_orphan_inode(sbi);
 835         if (err)
 836                 goto out;
 837
 838         err = f2fs_do_tmpfile(inode, dir);
 839         if (err)
 840                 goto release_out;
 841
 842         /*
 843          * add this non-linked tmpfile to orphan list, in this way we could
 844          * remove all unused data of tmpfile after abnormal power-off.
 845          */
 846         f2fs_add_orphan_inode(inode);
 847         f2fs_alloc_nid_done(sbi, inode->i_ino);
 848
 849         if (whiteout) {
 850                 f2fs_i_links_write(inode, false);
 851                 inode->i_state |= I_LINKABLE;
 852                 *whiteout = inode;
 853         } else {
 854                 d_tmpfile(dentry, inode);
 855         }
 856         /* link_count was changed by d_tmpfile as well. */
 857         f2fs_unlock_op(sbi);
 858         unlock_new_inode(inode);
 859
 860         f2fs_balance_fs(sbi, true);
 861         return 0;
 862
 863 release_out:
 864         f2fs_release_orphan_inode(sbi);
 865 out:
 866         f2fs_handle_failed_inode(inode);
 867         return err;
 868 }
 869
 870 static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
 871 {
 872         struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
 873
 874         if (unlikely(f2fs_cp_error(sbi)))
 875                 return -EIO;
 876         if (!f2fs_is_checkpoint_ready(sbi))
 877                 return -ENOSPC;
 878
 879         if (IS_ENCRYPTED(dir) || DUMMY_ENCRYPTION_ENABLED(sbi)) {
 880                 int err = fscrypt_get_encryption_info(dir);
 881                 if (err)
 882                         return err;
 883         }
 884
 885         return __f2fs_tmpfile(dir, dentry, mode, NULL);
 886 }
 887
 888 static int f2fs_create_whiteout(struct inode *dir, struct inode **whiteout)
 889 {
 890         if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
 891                 return -EIO;
 892
 893         return __f2fs_tmpfile(dir, NULL, S_IFCHR | WHITEOUT_MODE, whiteout);
 894 }
 895
 896 static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 897                         struct inode *new_dir, struct dentry *new_dentry,
 898                         unsigned int flags)
 899 {
 900         struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
 901         struct inode *old_inode = d_inode(old_dentry);
 902         struct inode *new_inode = d_inode(new_dentry);
 903         struct inode *whiteout = NULL;
 904         struct page *old_dir_page = NULL;
 905         struct page *old_page, *new_page = NULL;
 906         struct f2fs_dir_entry *old_dir_entry = NULL;
 907         struct f2fs_dir_entry *old_entry;
 908         struct f2fs_dir_entry *new_entry;
 909         int err;
 910
 911         if (unlikely(f2fs_cp_error(sbi)))
 912                 return -EIO;
 913         if (!f2fs_is_checkpoint_ready(sbi))
 914                 return -ENOSPC;
 915
 916         if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
 917                         (!projid_eq(F2FS_I(new_dir)->i_projid,
 918                         F2FS_I(old_dentry->d_inode)->i_projid)))
 919                 return -EXDEV;
 920
 921         /*
 922          * If new_inode is null, the below renaming flow will
 923          * add a link in old_dir which can conver inline_dir.
 924          * After then, if we failed to get the entry due to other
 925          * reasons like ENOMEM, we had to remove the new entry.
 926          * Instead of adding such the error handling routine, let's
 927          * simply convert first here.
 928          */
 929         if (old_dir == new_dir && !new_inode) {
 930                 err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
 931                 if (err)
 932                         return err;
 933         }
 934
 935         if (flags & RENAME_WHITEOUT) {
 936                 err = f2fs_create_whiteout(old_dir, &whiteout);
 937                 if (err)
 938                         return err;
 939         }
 940
 941         err = dquot_initialize(old_dir);
 942         if (err)
 943                 goto out;
 944
 945         err = dquot_initialize(new_dir);
 946         if (err)
 947                 goto out;
 948
 949         if (new_inode) {
 950                 err = dquot_initialize(new_inode);
 951                 if (err)
 952                         goto out;
 953         }
 954
 955         err = -ENOENT;
 956         old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
 957         if (!old_entry) {
 958                 if (IS_ERR(old_page))
 959                         err = PTR_ERR(old_page);
 960                 goto out;
 961         }
 962
 963         if (S_ISDIR(old_inode->i_mode)) {
 964                 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page);
 965                 if (!old_dir_entry) {
 966                         if (IS_ERR(old_dir_page))
 967                                 err = PTR_ERR(old_dir_page);
 968                         goto out_old;
 969                 }
 970         }
 971
 972         if (new_inode) {
 973
 974                 err = -ENOTEMPTY;
 975                 if (old_dir_entry && !f2fs_empty_dir(new_inode))
 976                         goto out_dir;
 977
 978                 err = -ENOENT;
 979                 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name,
 980                                                 &new_page);
 981                 if (!new_entry) {
 982                         if (IS_ERR(new_page))
 983                                 err = PTR_ERR(new_page);
 984                         goto out_dir;
 985                 }
 986
 987                 f2fs_balance_fs(sbi, true);
 988
 989                 f2fs_lock_op(sbi);
 990
 991                 err = f2fs_acquire_orphan_inode(sbi);
 992                 if (err)
 993                         goto put_out_dir;
 994
 995                 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
 996                 new_page = NULL;
 997
 998                 new_inode->i_ctime = current_time(new_inode);
 999                 down_write(&F2FS_I(new_inode)->i_sem);
1000                 if (old_dir_entry)
1001                         f2fs_i_links_write(new_inode, false);
1002                 f2fs_i_links_write(new_inode, false);
1003                 up_write(&F2FS_I(new_inode)->i_sem);
1004
1005                 if (!new_inode->i_nlink)
1006                         f2fs_add_orphan_inode(new_inode);
1007                 else
1008                         f2fs_release_orphan_inode(sbi);
1009         } else {
1010                 f2fs_balance_fs(sbi, true);
1011
1012                 f2fs_lock_op(sbi);
1013
1014                 err = f2fs_add_link(new_dentry, old_inode);
1015                 if (err) {
1016                         f2fs_unlock_op(sbi);
1017                         goto out_dir;
1018                 }
1019
1020                 if (old_dir_entry)
1021                         f2fs_i_links_write(new_dir, true);
1022         }
1023
1024         down_write(&F2FS_I(old_inode)->i_sem);
1025         if (!old_dir_entry || whiteout)
1026                 file_lost_pino(old_inode);
1027         else
1028                 /* adjust dir's i_pino to pass fsck check */
1029                 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1030         up_write(&F2FS_I(old_inode)->i_sem);
1031
1032         old_inode->i_ctime = current_time(old_inode);
1033         f2fs_mark_inode_dirty_sync(old_inode, false);
1034
1035         f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
1036         old_page = NULL;
1037
1038         if (whiteout) {
1039                 set_inode_flag(whiteout, FI_INC_LINK);
1040                 err = f2fs_add_link(old_dentry, whiteout);
1041                 if (err)
1042                         goto put_out_dir;
1043                 whiteout->i_state &= ~I_LINKABLE;
1044                 iput(whiteout);
1045         }
1046
1047         if (old_dir_entry) {
1048                 if (old_dir != new_dir && !whiteout)
1049                         f2fs_set_link(old_inode, old_dir_entry,
1050                                                 old_dir_page, new_dir);
1051                 else
1052                         f2fs_put_page(old_dir_page, 0);
1053                 f2fs_i_links_write(old_dir, false);
1054         }
1055         if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1056                 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1057                 if (S_ISDIR(old_inode->i_mode))
1058                         f2fs_add_ino_entry(sbi, old_inode->i_ino,
1059                                                         TRANS_DIR_INO);
1060         }
1061
1062         f2fs_unlock_op(sbi);
1063
1064         if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1065                 f2fs_sync_fs(sbi->sb, 1);
1066
1067         f2fs_update_time(sbi, REQ_TIME);
1068         return 0;
1069
1070 put_out_dir:
1071         f2fs_unlock_op(sbi);
1072         f2fs_put_page(new_page, 0);
1073 out_dir:
1074         if (old_dir_entry)
1075                 f2fs_put_page(old_dir_page, 0);
1076 out_old:
1077         f2fs_put_page(old_page, 0);
1078 out:
1079         if (whiteout)
1080                 iput(whiteout);
1081         return err;
1082 }
1083
1084 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
1085                              struct inode *new_dir, struct dentry *new_dentry)
1086 {
1087         struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
1088         struct inode *old_inode = d_inode(old_dentry);
1089         struct inode *new_inode = d_inode(new_dentry);
1090         struct page *old_dir_page, *new_dir_page;
1091         struct page *old_page, *new_page;
1092         struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
1093         struct f2fs_dir_entry *old_entry, *new_entry;
1094         int old_nlink = 0, new_nlink = 0;
1095         int err;
1096
1097         if (unlikely(f2fs_cp_error(sbi)))
1098                 return -EIO;
1099         if (!f2fs_is_checkpoint_ready(sbi))
1100                 return -ENOSPC;
1101
1102         if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1103                         !projid_eq(F2FS_I(new_dir)->i_projid,
1104                         F2FS_I(old_dentry->d_inode)->i_projid)) ||
1105             (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1106                         !projid_eq(F2FS_I(old_dir)->i_projid,
1107                         F2FS_I(new_dentry->d_inode)->i_projid)))
1108                 return -EXDEV;
1109
1110         err = dquot_initialize(old_dir);
1111         if (err)
1112                 goto out;
1113
1114         err = dquot_initialize(new_dir);
1115         if (err)
1116                 goto out;
1117
1118         err = -ENOENT;
1119         old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1120         if (!old_entry) {
1121                 if (IS_ERR(old_page))
1122                         err = PTR_ERR(old_page);
1123                 goto out;
1124         }
1125
1126         new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1127         if (!new_entry) {
1128                 if (IS_ERR(new_page))
1129                         err = PTR_ERR(new_page);
1130                 goto out_old;
1131         }
1132
1133         /* prepare for updating ".." directory entry info later */
1134         if (old_dir != new_dir) {
1135                 if (S_ISDIR(old_inode->i_mode)) {
1136                         old_dir_entry = f2fs_parent_dir(old_inode,
1137                                                         &old_dir_page);
1138                         if (!old_dir_entry) {
1139                                 if (IS_ERR(old_dir_page))
1140                                         err = PTR_ERR(old_dir_page);
1141                                 goto out_new;
1142                         }
1143                 }
1144
1145                 if (S_ISDIR(new_inode->i_mode)) {
1146                         new_dir_entry = f2fs_parent_dir(new_inode,
1147                                                         &new_dir_page);
1148                         if (!new_dir_entry) {
1149                                 if (IS_ERR(new_dir_page))
1150                                         err = PTR_ERR(new_dir_page);
1151                                 goto out_old_dir;
1152                         }
1153                 }
1154         }
1155
1156         /*
1157          * If cross rename between file and directory those are not
1158          * in the same directory, we will inc nlink of file's parent
1159          * later, so we should check upper boundary of its nlink.
1160          */
1161         if ((!old_dir_entry || !new_dir_entry) &&
1162                                 old_dir_entry != new_dir_entry) {
1163                 old_nlink = old_dir_entry ? -1 : 1;
1164                 new_nlink = -old_nlink;
1165                 err = -EMLINK;
1166                 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) ||
1167                         (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX))
1168                         goto out_new_dir;
1169         }
1170
1171         f2fs_balance_fs(sbi, true);
1172
1173         f2fs_lock_op(sbi);
1174
1175         /* update ".." directory entry info of old dentry */
1176         if (old_dir_entry)
1177                 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir);
1178
1179         /* update ".." directory entry info of new dentry */
1180         if (new_dir_entry)
1181                 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir);
1182
1183         /* update directory entry info of old dir inode */
1184         f2fs_set_link(old_dir, old_entry, old_page, new_inode);
1185
1186         down_write(&F2FS_I(old_inode)->i_sem);
1187         if (!old_dir_entry)
1188                 file_lost_pino(old_inode);
1189         else
1190                 /* adjust dir's i_pino to pass fsck check */
1191                 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1192         up_write(&F2FS_I(old_inode)->i_sem);
1193
1194         old_dir->i_ctime = current_time(old_dir);
1195         if (old_nlink) {
1196                 down_write(&F2FS_I(old_dir)->i_sem);
1197                 f2fs_i_links_write(old_dir, old_nlink > 0);
1198                 up_write(&F2FS_I(old_dir)->i_sem);
1199         }
1200         f2fs_mark_inode_dirty_sync(old_dir, false);
1201
1202         /* update directory entry info of new dir inode */
1203         f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1204
1205         down_write(&F2FS_I(new_inode)->i_sem);
1206         if (!new_dir_entry)
1207                 file_lost_pino(new_inode);
1208         else
1209                 /* adjust dir's i_pino to pass fsck check */
1210                 f2fs_i_pino_write(new_inode, old_dir->i_ino);
1211         up_write(&F2FS_I(new_inode)->i_sem);
1212
1213         new_dir->i_ctime = current_time(new_dir);
1214         if (new_nlink) {
1215                 down_write(&F2FS_I(new_dir)->i_sem);
1216                 f2fs_i_links_write(new_dir, new_nlink > 0);
1217                 up_write(&F2FS_I(new_dir)->i_sem);
1218         }
1219         f2fs_mark_inode_dirty_sync(new_dir, false);
1220
1221         if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1222                 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
1223                 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1224         }
1225
1226         f2fs_unlock_op(sbi);
1227
1228         if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1229                 f2fs_sync_fs(sbi->sb, 1);
1230
1231         f2fs_update_time(sbi, REQ_TIME);
1232         return 0;
1233 out_new_dir:
1234         if (new_dir_entry) {
1235                 f2fs_put_page(new_dir_page, 0);
1236         }
1237 out_old_dir:
1238         if (old_dir_entry) {
1239                 f2fs_put_page(old_dir_page, 0);
1240         }
1241 out_new:
1242         f2fs_put_page(new_page, 0);
1243 out_old:
1244         f2fs_put_page(old_page, 0);
1245 out:
1246         return err;
1247 }
1248
1249 static int f2fs_rename2(struct inode *old_dir, struct dentry *old_dentry,
1250                         struct inode *new_dir, struct dentry *new_dentry,
1251                         unsigned int flags)
1252 {
1253         int err;
1254
1255         if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
1256                 return -EINVAL;
1257
1258         err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1259                                      flags);
1260         if (err)
1261                 return err;
1262
1263         if (flags & RENAME_EXCHANGE) {
1264                 return f2fs_cross_rename(old_dir, old_dentry,
1265                                          new_dir, new_dentry);
1266         }
1267         /*
1268          * VFS has already handled the new dentry existence case,
1269          * here, we just deal with "RENAME_NOREPLACE" as regular rename.
1270          */
1271         return f2fs_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
1272 }
1273
1274 static const char *f2fs_encrypted_get_link(struct dentry *dentry,
1275                                            struct inode *inode,
1276                                            struct delayed_call *done)
1277 {
1278         struct page *page;
1279         const char *target;
1280
1281         if (!dentry)
1282                 return ERR_PTR(-ECHILD);
1283
1284         page = read_mapping_page(inode->i_mapping, 0, NULL);
1285         if (IS_ERR(page))
1286                 return ERR_CAST(page);
1287
1288         target = fscrypt_get_symlink(inode, page_address(page),
1289                                      inode->i_sb->s_blocksize, done);
1290         put_page(page);
1291         return target;
1292 }
1293
1294 const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
1295         .get_link       = f2fs_encrypted_get_link,
1296         .getattr        = f2fs_getattr,
1297         .setattr        = f2fs_setattr,
1298 #ifdef CONFIG_F2FS_FS_XATTR
1299         .listxattr      = f2fs_listxattr,
1300 #endif
1301 };
1302
1303 const struct inode_operations f2fs_dir_inode_operations = {
1304         .create         = f2fs_create,
1305         .lookup         = f2fs_lookup,
1306         .link           = f2fs_link,
1307         .unlink         = f2fs_unlink,
1308         .symlink        = f2fs_symlink,
1309         .mkdir          = f2fs_mkdir,
1310         .rmdir          = f2fs_rmdir,
1311         .mknod          = f2fs_mknod,
1312         .rename         = f2fs_rename2,
1313         .tmpfile        = f2fs_tmpfile,
1314         .getattr        = f2fs_getattr,
1315         .setattr        = f2fs_setattr,
1316         .get_acl        = f2fs_get_acl,
1317         .set_acl        = f2fs_set_acl,
1318 #ifdef CONFIG_F2FS_FS_XATTR
1319         .listxattr      = f2fs_listxattr,
1320 #endif
1321         .fiemap         = f2fs_fiemap,
1322 };
1323
1324 const struct inode_operations f2fs_symlink_inode_operations = {
1325         .get_link       = f2fs_get_link,
1326         .getattr        = f2fs_getattr,
1327         .setattr        = f2fs_setattr,
1328 #ifdef CONFIG_F2FS_FS_XATTR
1329         .listxattr      = f2fs_listxattr,
1330 #endif
1331 };
1332
1333 const struct inode_operations f2fs_special_inode_operations = {
1334         .getattr        = f2fs_getattr,
1335         .setattr        = f2fs_setattr,
1336         .get_acl        = f2fs_get_acl,
1337         .set_acl        = f2fs_set_acl,
1338 #ifdef CONFIG_F2FS_FS_XATTR
1339         .listxattr      = f2fs_listxattr,
1340 #endif
1341 };