Loading...
Note: File does not exist in v3.5.6.
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
25static inline int is_extension_exist(const unsigned char *s, const char *sub,
26 bool tmp_ext)
27{
28 size_t slen = strlen(s);
29 size_t sublen = strlen(sub);
30 int i;
31
32 if (sublen == 1 && *sub == '*')
33 return 1;
34
35 /*
36 * filename format of multimedia file should be defined as:
37 * "filename + '.' + extension + (optional: '.' + temp extension)".
38 */
39 if (slen < sublen + 2)
40 return 0;
41
42 if (!tmp_ext) {
43 /* file has no temp extension */
44 if (s[slen - sublen - 1] != '.')
45 return 0;
46 return !strncasecmp(s + slen - sublen, sub, sublen);
47 }
48
49 for (i = 1; i < slen - sublen; i++) {
50 if (s[i] != '.')
51 continue;
52 if (!strncasecmp(s + i + 1, sub, sublen))
53 return 1;
54 }
55
56 return 0;
57}
58
59int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
60 bool hot, bool set)
61{
62 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
63 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
64 int hot_count = sbi->raw_super->hot_ext_count;
65 int total_count = cold_count + hot_count;
66 int start, count;
67 int i;
68
69 if (set) {
70 if (total_count == F2FS_MAX_EXTENSION)
71 return -EINVAL;
72 } else {
73 if (!hot && !cold_count)
74 return -EINVAL;
75 if (hot && !hot_count)
76 return -EINVAL;
77 }
78
79 if (hot) {
80 start = cold_count;
81 count = total_count;
82 } else {
83 start = 0;
84 count = cold_count;
85 }
86
87 for (i = start; i < count; i++) {
88 if (strcmp(name, extlist[i]))
89 continue;
90
91 if (set)
92 return -EINVAL;
93
94 memcpy(extlist[i], extlist[i + 1],
95 F2FS_EXTENSION_LEN * (total_count - i - 1));
96 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN);
97 if (hot)
98 sbi->raw_super->hot_ext_count = hot_count - 1;
99 else
100 sbi->raw_super->extension_count =
101 cpu_to_le32(cold_count - 1);
102 return 0;
103 }
104
105 if (!set)
106 return -EINVAL;
107
108 if (hot) {
109 memcpy(extlist[count], name, strlen(name));
110 sbi->raw_super->hot_ext_count = hot_count + 1;
111 } else {
112 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN];
113
114 memcpy(buf, &extlist[cold_count],
115 F2FS_EXTENSION_LEN * hot_count);
116 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN);
117 memcpy(extlist[cold_count], name, strlen(name));
118 memcpy(&extlist[cold_count + 1], buf,
119 F2FS_EXTENSION_LEN * hot_count);
120 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1);
121 }
122 return 0;
123}
124
125static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
126 struct inode *inode, const unsigned char *name)
127{
128 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
129 unsigned char (*noext)[F2FS_EXTENSION_LEN] =
130 F2FS_OPTION(sbi).noextensions;
131 unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions;
132 unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
133 unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
134 int i, cold_count, hot_count;
135
136 if (!f2fs_sb_has_compression(sbi))
137 return;
138
139 if (S_ISDIR(inode->i_mode))
140 goto inherit_comp;
141
142 /* This name comes only from normal files. */
143 if (!name)
144 return;
145
146 /* Don't compress hot files. */
147 f2fs_down_read(&sbi->sb_lock);
148 cold_count = le32_to_cpu(sbi->raw_super->extension_count);
149 hot_count = sbi->raw_super->hot_ext_count;
150 for (i = cold_count; i < cold_count + hot_count; i++)
151 if (is_extension_exist(name, extlist[i], false))
152 break;
153 f2fs_up_read(&sbi->sb_lock);
154 if (i < (cold_count + hot_count))
155 return;
156
157 /* Don't compress unallowed extension. */
158 for (i = 0; i < noext_cnt; i++)
159 if (is_extension_exist(name, noext[i], false))
160 return;
161
162 /* Compress wanting extension. */
163 for (i = 0; i < ext_cnt; i++) {
164 if (is_extension_exist(name, ext[i], false)) {
165 set_compress_context(inode);
166 return;
167 }
168 }
169inherit_comp:
170 /* Inherit the {no-}compression flag in directory */
171 if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) {
172 F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL;
173 f2fs_mark_inode_dirty_sync(inode, true);
174 } else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) {
175 set_compress_context(inode);
176 }
177}
178
179/*
180 * Set file's temperature for hot/cold data separation
181 */
182static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
183 const unsigned char *name)
184{
185 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
186 int i, cold_count, hot_count;
187
188 f2fs_down_read(&sbi->sb_lock);
189 cold_count = le32_to_cpu(sbi->raw_super->extension_count);
190 hot_count = sbi->raw_super->hot_ext_count;
191 for (i = 0; i < cold_count + hot_count; i++)
192 if (is_extension_exist(name, extlist[i], true))
193 break;
194 f2fs_up_read(&sbi->sb_lock);
195
196 if (i == cold_count + hot_count)
197 return;
198
199 if (i < cold_count)
200 file_set_cold(inode);
201 else
202 file_set_hot(inode);
203}
204
205static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
206 struct inode *dir, umode_t mode,
207 const char *name)
208{
209 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
210 nid_t ino;
211 struct inode *inode;
212 bool nid_free = false;
213 bool encrypt = false;
214 int xattr_size = 0;
215 int err;
216
217 inode = new_inode(dir->i_sb);
218 if (!inode)
219 return ERR_PTR(-ENOMEM);
220
221 if (!f2fs_alloc_nid(sbi, &ino)) {
222 err = -ENOSPC;
223 goto fail;
224 }
225
226 nid_free = true;
227
228 inode_init_owner(mnt_userns, inode, dir, mode);
229
230 inode->i_ino = ino;
231 inode->i_blocks = 0;
232 inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
233 F2FS_I(inode)->i_crtime = inode->i_mtime;
234 inode->i_generation = get_random_u32();
235
236 if (S_ISDIR(inode->i_mode))
237 F2FS_I(inode)->i_current_depth = 1;
238
239 err = insert_inode_locked(inode);
240 if (err) {
241 err = -EINVAL;
242 goto fail;
243 }
244
245 if (f2fs_sb_has_project_quota(sbi) &&
246 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL))
247 F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid;
248 else
249 F2FS_I(inode)->i_projid = make_kprojid(mnt_userns,
250 F2FS_DEF_PROJID);
251
252 err = fscrypt_prepare_new_inode(dir, inode, &encrypt);
253 if (err)
254 goto fail_drop;
255
256 err = f2fs_dquot_initialize(inode);
257 if (err)
258 goto fail_drop;
259
260 set_inode_flag(inode, FI_NEW_INODE);
261
262 if (encrypt)
263 f2fs_set_encrypted_inode(inode);
264
265 if (f2fs_sb_has_extra_attr(sbi)) {
266 set_inode_flag(inode, FI_EXTRA_ATTR);
267 F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE;
268 }
269
270 if (test_opt(sbi, INLINE_XATTR))
271 set_inode_flag(inode, FI_INLINE_XATTR);
272
273 if (f2fs_may_inline_dentry(inode))
274 set_inode_flag(inode, FI_INLINE_DENTRY);
275
276 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
277 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
278 if (f2fs_has_inline_xattr(inode))
279 xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
280 /* Otherwise, will be 0 */
281 } else if (f2fs_has_inline_xattr(inode) ||
282 f2fs_has_inline_dentry(inode)) {
283 xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
284 }
285 F2FS_I(inode)->i_inline_xattr_size = xattr_size;
286
287 F2FS_I(inode)->i_flags =
288 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
289
290 if (S_ISDIR(inode->i_mode))
291 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL;
292
293 if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
294 set_inode_flag(inode, FI_PROJ_INHERIT);
295
296 /* Check compression first. */
297 set_compress_new_inode(sbi, dir, inode, name);
298
299 /* Should enable inline_data after compression set */
300 if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
301 set_inode_flag(inode, FI_INLINE_DATA);
302
303 if (name && !test_opt(sbi, DISABLE_EXT_IDENTIFY))
304 set_file_temperature(sbi, inode, name);
305
306 stat_inc_inline_xattr(inode);
307 stat_inc_inline_inode(inode);
308 stat_inc_inline_dir(inode);
309
310 f2fs_set_inode_flags(inode);
311
312 f2fs_init_extent_tree(inode);
313
314 trace_f2fs_new_inode(inode, 0);
315 return inode;
316
317fail:
318 trace_f2fs_new_inode(inode, err);
319 make_bad_inode(inode);
320 if (nid_free)
321 set_inode_flag(inode, FI_FREE_NID);
322 iput(inode);
323 return ERR_PTR(err);
324fail_drop:
325 trace_f2fs_new_inode(inode, err);
326 dquot_drop(inode);
327 inode->i_flags |= S_NOQUOTA;
328 if (nid_free)
329 set_inode_flag(inode, FI_FREE_NID);
330 clear_nlink(inode);
331 unlock_new_inode(inode);
332 iput(inode);
333 return ERR_PTR(err);
334}
335
336static int f2fs_create(struct user_namespace *mnt_userns, struct inode *dir,
337 struct dentry *dentry, umode_t mode, bool excl)
338{
339 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
340 struct inode *inode;
341 nid_t ino = 0;
342 int err;
343
344 if (unlikely(f2fs_cp_error(sbi)))
345 return -EIO;
346 if (!f2fs_is_checkpoint_ready(sbi))
347 return -ENOSPC;
348
349 err = f2fs_dquot_initialize(dir);
350 if (err)
351 return err;
352
353 inode = f2fs_new_inode(mnt_userns, dir, mode, dentry->d_name.name);
354 if (IS_ERR(inode))
355 return PTR_ERR(inode);
356
357 inode->i_op = &f2fs_file_inode_operations;
358 inode->i_fop = &f2fs_file_operations;
359 inode->i_mapping->a_ops = &f2fs_dblock_aops;
360 ino = inode->i_ino;
361
362 f2fs_lock_op(sbi);
363 err = f2fs_add_link(dentry, inode);
364 if (err)
365 goto out;
366 f2fs_unlock_op(sbi);
367
368 f2fs_alloc_nid_done(sbi, ino);
369
370 d_instantiate_new(dentry, inode);
371
372 if (IS_DIRSYNC(dir))
373 f2fs_sync_fs(sbi->sb, 1);
374
375 f2fs_balance_fs(sbi, true);
376 return 0;
377out:
378 f2fs_handle_failed_inode(inode);
379 return err;
380}
381
382static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
383 struct dentry *dentry)
384{
385 struct inode *inode = d_inode(old_dentry);
386 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
387 int err;
388
389 if (unlikely(f2fs_cp_error(sbi)))
390 return -EIO;
391 if (!f2fs_is_checkpoint_ready(sbi))
392 return -ENOSPC;
393
394 err = fscrypt_prepare_link(old_dentry, dir, dentry);
395 if (err)
396 return err;
397
398 if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
399 (!projid_eq(F2FS_I(dir)->i_projid,
400 F2FS_I(old_dentry->d_inode)->i_projid)))
401 return -EXDEV;
402
403 err = f2fs_dquot_initialize(dir);
404 if (err)
405 return err;
406
407 f2fs_balance_fs(sbi, true);
408
409 inode->i_ctime = current_time(inode);
410 ihold(inode);
411
412 set_inode_flag(inode, FI_INC_LINK);
413 f2fs_lock_op(sbi);
414 err = f2fs_add_link(dentry, inode);
415 if (err)
416 goto out;
417 f2fs_unlock_op(sbi);
418
419 d_instantiate(dentry, inode);
420
421 if (IS_DIRSYNC(dir))
422 f2fs_sync_fs(sbi->sb, 1);
423 return 0;
424out:
425 clear_inode_flag(inode, FI_INC_LINK);
426 iput(inode);
427 f2fs_unlock_op(sbi);
428 return err;
429}
430
431struct dentry *f2fs_get_parent(struct dentry *child)
432{
433 struct page *page;
434 unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page);
435
436 if (!ino) {
437 if (IS_ERR(page))
438 return ERR_CAST(page);
439 return ERR_PTR(-ENOENT);
440 }
441 return d_obtain_alias(f2fs_iget(child->d_sb, ino));
442}
443
444static int __recover_dot_dentries(struct inode *dir, nid_t pino)
445{
446 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
447 struct qstr dot = QSTR_INIT(".", 1);
448 struct qstr dotdot = QSTR_INIT("..", 2);
449 struct f2fs_dir_entry *de;
450 struct page *page;
451 int err = 0;
452
453 if (f2fs_readonly(sbi->sb)) {
454 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint",
455 dir->i_ino, pino);
456 return 0;
457 }
458
459 if (!S_ISDIR(dir->i_mode)) {
460 f2fs_err(sbi, "inconsistent inode status, skip recovering inline_dots inode (ino:%lu, i_mode:%u, pino:%u)",
461 dir->i_ino, dir->i_mode, pino);
462 set_sbi_flag(sbi, SBI_NEED_FSCK);
463 return -ENOTDIR;
464 }
465
466 err = f2fs_dquot_initialize(dir);
467 if (err)
468 return err;
469
470 f2fs_balance_fs(sbi, true);
471
472 f2fs_lock_op(sbi);
473
474 de = f2fs_find_entry(dir, &dot, &page);
475 if (de) {
476 f2fs_put_page(page, 0);
477 } else if (IS_ERR(page)) {
478 err = PTR_ERR(page);
479 goto out;
480 } else {
481 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR);
482 if (err)
483 goto out;
484 }
485
486 de = f2fs_find_entry(dir, &dotdot, &page);
487 if (de)
488 f2fs_put_page(page, 0);
489 else if (IS_ERR(page))
490 err = PTR_ERR(page);
491 else
492 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR);
493out:
494 if (!err)
495 clear_inode_flag(dir, FI_INLINE_DOTS);
496
497 f2fs_unlock_op(sbi);
498 return err;
499}
500
501static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
502 unsigned int flags)
503{
504 struct inode *inode = NULL;
505 struct f2fs_dir_entry *de;
506 struct page *page;
507 struct dentry *new;
508 nid_t ino = -1;
509 int err = 0;
510 unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
511 struct f2fs_filename fname;
512
513 trace_f2fs_lookup_start(dir, dentry, flags);
514
515 if (dentry->d_name.len > F2FS_NAME_LEN) {
516 err = -ENAMETOOLONG;
517 goto out;
518 }
519
520 err = f2fs_prepare_lookup(dir, dentry, &fname);
521 generic_set_encrypted_ci_d_ops(dentry);
522 if (err == -ENOENT)
523 goto out_splice;
524 if (err)
525 goto out;
526 de = __f2fs_find_entry(dir, &fname, &page);
527 f2fs_free_filename(&fname);
528
529 if (!de) {
530 if (IS_ERR(page)) {
531 err = PTR_ERR(page);
532 goto out;
533 }
534 err = -ENOENT;
535 goto out_splice;
536 }
537
538 ino = le32_to_cpu(de->ino);
539 f2fs_put_page(page, 0);
540
541 inode = f2fs_iget(dir->i_sb, ino);
542 if (IS_ERR(inode)) {
543 err = PTR_ERR(inode);
544 goto out;
545 }
546
547 if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
548 err = __recover_dot_dentries(dir, root_ino);
549 if (err)
550 goto out_iput;
551 }
552
553 if (f2fs_has_inline_dots(inode)) {
554 err = __recover_dot_dentries(inode, dir->i_ino);
555 if (err)
556 goto out_iput;
557 }
558 if (IS_ENCRYPTED(dir) &&
559 (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
560 !fscrypt_has_permitted_context(dir, inode)) {
561 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
562 dir->i_ino, inode->i_ino);
563 err = -EPERM;
564 goto out_iput;
565 }
566out_splice:
567#if IS_ENABLED(CONFIG_UNICODE)
568 if (!inode && IS_CASEFOLDED(dir)) {
569 /* Eventually we want to call d_add_ci(dentry, NULL)
570 * for negative dentries in the encoding case as
571 * well. For now, prevent the negative dentry
572 * from being cached.
573 */
574 trace_f2fs_lookup_end(dir, dentry, ino, err);
575 return NULL;
576 }
577#endif
578 new = d_splice_alias(inode, dentry);
579 err = PTR_ERR_OR_ZERO(new);
580 trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err);
581 return new;
582out_iput:
583 iput(inode);
584out:
585 trace_f2fs_lookup_end(dir, dentry, ino, err);
586 return ERR_PTR(err);
587}
588
589static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
590{
591 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
592 struct inode *inode = d_inode(dentry);
593 struct f2fs_dir_entry *de;
594 struct page *page;
595 int err;
596
597 trace_f2fs_unlink_enter(dir, dentry);
598
599 if (unlikely(f2fs_cp_error(sbi))) {
600 err = -EIO;
601 goto fail;
602 }
603
604 err = f2fs_dquot_initialize(dir);
605 if (err)
606 goto fail;
607 err = f2fs_dquot_initialize(inode);
608 if (err)
609 goto fail;
610
611 de = f2fs_find_entry(dir, &dentry->d_name, &page);
612 if (!de) {
613 if (IS_ERR(page))
614 err = PTR_ERR(page);
615 goto fail;
616 }
617
618 f2fs_balance_fs(sbi, true);
619
620 f2fs_lock_op(sbi);
621 err = f2fs_acquire_orphan_inode(sbi);
622 if (err) {
623 f2fs_unlock_op(sbi);
624 f2fs_put_page(page, 0);
625 goto fail;
626 }
627 f2fs_delete_entry(de, page, dir, inode);
628 f2fs_unlock_op(sbi);
629
630#if IS_ENABLED(CONFIG_UNICODE)
631 /* VFS negative dentries are incompatible with Encoding and
632 * Case-insensitiveness. Eventually we'll want avoid
633 * invalidating the dentries here, alongside with returning the
634 * negative dentries at f2fs_lookup(), when it is better
635 * supported by the VFS for the CI case.
636 */
637 if (IS_CASEFOLDED(dir))
638 d_invalidate(dentry);
639#endif
640 if (IS_DIRSYNC(dir))
641 f2fs_sync_fs(sbi->sb, 1);
642fail:
643 trace_f2fs_unlink_exit(inode, err);
644 return err;
645}
646
647static const char *f2fs_get_link(struct dentry *dentry,
648 struct inode *inode,
649 struct delayed_call *done)
650{
651 const char *link = page_get_link(dentry, inode, done);
652
653 if (!IS_ERR(link) && !*link) {
654 /* this is broken symlink case */
655 do_delayed_call(done);
656 clear_delayed_call(done);
657 link = ERR_PTR(-ENOENT);
658 }
659 return link;
660}
661
662static int f2fs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
663 struct dentry *dentry, const char *symname)
664{
665 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
666 struct inode *inode;
667 size_t len = strlen(symname);
668 struct fscrypt_str disk_link;
669 int err;
670
671 if (unlikely(f2fs_cp_error(sbi)))
672 return -EIO;
673 if (!f2fs_is_checkpoint_ready(sbi))
674 return -ENOSPC;
675
676 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
677 &disk_link);
678 if (err)
679 return err;
680
681 err = f2fs_dquot_initialize(dir);
682 if (err)
683 return err;
684
685 inode = f2fs_new_inode(mnt_userns, dir, S_IFLNK | S_IRWXUGO, NULL);
686 if (IS_ERR(inode))
687 return PTR_ERR(inode);
688
689 if (IS_ENCRYPTED(inode))
690 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
691 else
692 inode->i_op = &f2fs_symlink_inode_operations;
693 inode_nohighmem(inode);
694 inode->i_mapping->a_ops = &f2fs_dblock_aops;
695
696 f2fs_lock_op(sbi);
697 err = f2fs_add_link(dentry, inode);
698 if (err)
699 goto out_f2fs_handle_failed_inode;
700 f2fs_unlock_op(sbi);
701 f2fs_alloc_nid_done(sbi, inode->i_ino);
702
703 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
704 if (err)
705 goto err_out;
706
707 err = page_symlink(inode, disk_link.name, disk_link.len);
708
709err_out:
710 d_instantiate_new(dentry, inode);
711
712 /*
713 * Let's flush symlink data in order to avoid broken symlink as much as
714 * possible. Nevertheless, fsyncing is the best way, but there is no
715 * way to get a file descriptor in order to flush that.
716 *
717 * Note that, it needs to do dir->fsync to make this recoverable.
718 * If the symlink path is stored into inline_data, there is no
719 * performance regression.
720 */
721 if (!err) {
722 filemap_write_and_wait_range(inode->i_mapping, 0,
723 disk_link.len - 1);
724
725 if (IS_DIRSYNC(dir))
726 f2fs_sync_fs(sbi->sb, 1);
727 } else {
728 f2fs_unlink(dir, dentry);
729 }
730
731 f2fs_balance_fs(sbi, true);
732 goto out_free_encrypted_link;
733
734out_f2fs_handle_failed_inode:
735 f2fs_handle_failed_inode(inode);
736out_free_encrypted_link:
737 if (disk_link.name != (unsigned char *)symname)
738 kfree(disk_link.name);
739 return err;
740}
741
742static int f2fs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
743 struct dentry *dentry, umode_t mode)
744{
745 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
746 struct inode *inode;
747 int err;
748
749 if (unlikely(f2fs_cp_error(sbi)))
750 return -EIO;
751
752 err = f2fs_dquot_initialize(dir);
753 if (err)
754 return err;
755
756 inode = f2fs_new_inode(mnt_userns, dir, S_IFDIR | mode, NULL);
757 if (IS_ERR(inode))
758 return PTR_ERR(inode);
759
760 inode->i_op = &f2fs_dir_inode_operations;
761 inode->i_fop = &f2fs_dir_operations;
762 inode->i_mapping->a_ops = &f2fs_dblock_aops;
763 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
764
765 set_inode_flag(inode, FI_INC_LINK);
766 f2fs_lock_op(sbi);
767 err = f2fs_add_link(dentry, inode);
768 if (err)
769 goto out_fail;
770 f2fs_unlock_op(sbi);
771
772 f2fs_alloc_nid_done(sbi, inode->i_ino);
773
774 d_instantiate_new(dentry, inode);
775
776 if (IS_DIRSYNC(dir))
777 f2fs_sync_fs(sbi->sb, 1);
778
779 f2fs_balance_fs(sbi, true);
780 return 0;
781
782out_fail:
783 clear_inode_flag(inode, FI_INC_LINK);
784 f2fs_handle_failed_inode(inode);
785 return err;
786}
787
788static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
789{
790 struct inode *inode = d_inode(dentry);
791
792 if (f2fs_empty_dir(inode))
793 return f2fs_unlink(dir, dentry);
794 return -ENOTEMPTY;
795}
796
797static int f2fs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
798 struct dentry *dentry, umode_t mode, dev_t rdev)
799{
800 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
801 struct inode *inode;
802 int err = 0;
803
804 if (unlikely(f2fs_cp_error(sbi)))
805 return -EIO;
806 if (!f2fs_is_checkpoint_ready(sbi))
807 return -ENOSPC;
808
809 err = f2fs_dquot_initialize(dir);
810 if (err)
811 return err;
812
813 inode = f2fs_new_inode(mnt_userns, dir, mode, NULL);
814 if (IS_ERR(inode))
815 return PTR_ERR(inode);
816
817 init_special_inode(inode, inode->i_mode, rdev);
818 inode->i_op = &f2fs_special_inode_operations;
819
820 f2fs_lock_op(sbi);
821 err = f2fs_add_link(dentry, inode);
822 if (err)
823 goto out;
824 f2fs_unlock_op(sbi);
825
826 f2fs_alloc_nid_done(sbi, inode->i_ino);
827
828 d_instantiate_new(dentry, inode);
829
830 if (IS_DIRSYNC(dir))
831 f2fs_sync_fs(sbi->sb, 1);
832
833 f2fs_balance_fs(sbi, true);
834 return 0;
835out:
836 f2fs_handle_failed_inode(inode);
837 return err;
838}
839
840static int __f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
841 struct file *file, umode_t mode, bool is_whiteout,
842 struct inode **new_inode)
843{
844 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
845 struct inode *inode;
846 int err;
847
848 err = f2fs_dquot_initialize(dir);
849 if (err)
850 return err;
851
852 inode = f2fs_new_inode(mnt_userns, dir, mode, NULL);
853 if (IS_ERR(inode))
854 return PTR_ERR(inode);
855
856 if (is_whiteout) {
857 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
858 inode->i_op = &f2fs_special_inode_operations;
859 } else {
860 inode->i_op = &f2fs_file_inode_operations;
861 inode->i_fop = &f2fs_file_operations;
862 inode->i_mapping->a_ops = &f2fs_dblock_aops;
863 }
864
865 f2fs_lock_op(sbi);
866 err = f2fs_acquire_orphan_inode(sbi);
867 if (err)
868 goto out;
869
870 err = f2fs_do_tmpfile(inode, dir);
871 if (err)
872 goto release_out;
873
874 /*
875 * add this non-linked tmpfile to orphan list, in this way we could
876 * remove all unused data of tmpfile after abnormal power-off.
877 */
878 f2fs_add_orphan_inode(inode);
879 f2fs_alloc_nid_done(sbi, inode->i_ino);
880
881 if (is_whiteout) {
882 f2fs_i_links_write(inode, false);
883
884 spin_lock(&inode->i_lock);
885 inode->i_state |= I_LINKABLE;
886 spin_unlock(&inode->i_lock);
887 } else {
888 if (file)
889 d_tmpfile(file, inode);
890 else
891 f2fs_i_links_write(inode, false);
892 }
893 /* link_count was changed by d_tmpfile as well. */
894 f2fs_unlock_op(sbi);
895 unlock_new_inode(inode);
896
897 if (new_inode)
898 *new_inode = inode;
899
900 f2fs_balance_fs(sbi, true);
901 return 0;
902
903release_out:
904 f2fs_release_orphan_inode(sbi);
905out:
906 f2fs_handle_failed_inode(inode);
907 return err;
908}
909
910static int f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
911 struct file *file, umode_t mode)
912{
913 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
914 int err;
915
916 if (unlikely(f2fs_cp_error(sbi)))
917 return -EIO;
918 if (!f2fs_is_checkpoint_ready(sbi))
919 return -ENOSPC;
920
921 err = __f2fs_tmpfile(mnt_userns, dir, file, mode, false, NULL);
922
923 return finish_open_simple(file, err);
924}
925
926static int f2fs_create_whiteout(struct user_namespace *mnt_userns,
927 struct inode *dir, struct inode **whiteout)
928{
929 if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
930 return -EIO;
931
932 return __f2fs_tmpfile(mnt_userns, dir, NULL,
933 S_IFCHR | WHITEOUT_MODE, true, whiteout);
934}
935
936int f2fs_get_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
937 struct inode **new_inode)
938{
939 return __f2fs_tmpfile(mnt_userns, dir, NULL, S_IFREG, false, new_inode);
940}
941
942static int f2fs_rename(struct user_namespace *mnt_userns, struct inode *old_dir,
943 struct dentry *old_dentry, struct inode *new_dir,
944 struct dentry *new_dentry, unsigned int flags)
945{
946 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
947 struct inode *old_inode = d_inode(old_dentry);
948 struct inode *new_inode = d_inode(new_dentry);
949 struct inode *whiteout = NULL;
950 struct page *old_dir_page = NULL;
951 struct page *old_page, *new_page = NULL;
952 struct f2fs_dir_entry *old_dir_entry = NULL;
953 struct f2fs_dir_entry *old_entry;
954 struct f2fs_dir_entry *new_entry;
955 int err;
956
957 if (unlikely(f2fs_cp_error(sbi)))
958 return -EIO;
959 if (!f2fs_is_checkpoint_ready(sbi))
960 return -ENOSPC;
961
962 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
963 (!projid_eq(F2FS_I(new_dir)->i_projid,
964 F2FS_I(old_dentry->d_inode)->i_projid)))
965 return -EXDEV;
966
967 /*
968 * If new_inode is null, the below renaming flow will
969 * add a link in old_dir which can conver inline_dir.
970 * After then, if we failed to get the entry due to other
971 * reasons like ENOMEM, we had to remove the new entry.
972 * Instead of adding such the error handling routine, let's
973 * simply convert first here.
974 */
975 if (old_dir == new_dir && !new_inode) {
976 err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
977 if (err)
978 return err;
979 }
980
981 if (flags & RENAME_WHITEOUT) {
982 err = f2fs_create_whiteout(mnt_userns, old_dir, &whiteout);
983 if (err)
984 return err;
985 }
986
987 err = f2fs_dquot_initialize(old_dir);
988 if (err)
989 goto out;
990
991 err = f2fs_dquot_initialize(new_dir);
992 if (err)
993 goto out;
994
995 if (new_inode) {
996 err = f2fs_dquot_initialize(new_inode);
997 if (err)
998 goto out;
999 }
1000
1001 err = -ENOENT;
1002 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1003 if (!old_entry) {
1004 if (IS_ERR(old_page))
1005 err = PTR_ERR(old_page);
1006 goto out;
1007 }
1008
1009 if (S_ISDIR(old_inode->i_mode)) {
1010 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page);
1011 if (!old_dir_entry) {
1012 if (IS_ERR(old_dir_page))
1013 err = PTR_ERR(old_dir_page);
1014 goto out_old;
1015 }
1016 }
1017
1018 if (new_inode) {
1019
1020 err = -ENOTEMPTY;
1021 if (old_dir_entry && !f2fs_empty_dir(new_inode))
1022 goto out_dir;
1023
1024 err = -ENOENT;
1025 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name,
1026 &new_page);
1027 if (!new_entry) {
1028 if (IS_ERR(new_page))
1029 err = PTR_ERR(new_page);
1030 goto out_dir;
1031 }
1032
1033 f2fs_balance_fs(sbi, true);
1034
1035 f2fs_lock_op(sbi);
1036
1037 err = f2fs_acquire_orphan_inode(sbi);
1038 if (err)
1039 goto put_out_dir;
1040
1041 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1042 new_page = NULL;
1043
1044 new_inode->i_ctime = current_time(new_inode);
1045 f2fs_down_write(&F2FS_I(new_inode)->i_sem);
1046 if (old_dir_entry)
1047 f2fs_i_links_write(new_inode, false);
1048 f2fs_i_links_write(new_inode, false);
1049 f2fs_up_write(&F2FS_I(new_inode)->i_sem);
1050
1051 if (!new_inode->i_nlink)
1052 f2fs_add_orphan_inode(new_inode);
1053 else
1054 f2fs_release_orphan_inode(sbi);
1055 } else {
1056 f2fs_balance_fs(sbi, true);
1057
1058 f2fs_lock_op(sbi);
1059
1060 err = f2fs_add_link(new_dentry, old_inode);
1061 if (err) {
1062 f2fs_unlock_op(sbi);
1063 goto out_dir;
1064 }
1065
1066 if (old_dir_entry)
1067 f2fs_i_links_write(new_dir, true);
1068 }
1069
1070 f2fs_down_write(&F2FS_I(old_inode)->i_sem);
1071 if (!old_dir_entry || whiteout)
1072 file_lost_pino(old_inode);
1073 else
1074 /* adjust dir's i_pino to pass fsck check */
1075 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1076 f2fs_up_write(&F2FS_I(old_inode)->i_sem);
1077
1078 old_inode->i_ctime = current_time(old_inode);
1079 f2fs_mark_inode_dirty_sync(old_inode, false);
1080
1081 f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
1082 old_page = NULL;
1083
1084 if (whiteout) {
1085 set_inode_flag(whiteout, FI_INC_LINK);
1086 err = f2fs_add_link(old_dentry, whiteout);
1087 if (err)
1088 goto put_out_dir;
1089
1090 spin_lock(&whiteout->i_lock);
1091 whiteout->i_state &= ~I_LINKABLE;
1092 spin_unlock(&whiteout->i_lock);
1093
1094 iput(whiteout);
1095 }
1096
1097 if (old_dir_entry) {
1098 if (old_dir != new_dir && !whiteout)
1099 f2fs_set_link(old_inode, old_dir_entry,
1100 old_dir_page, new_dir);
1101 else
1102 f2fs_put_page(old_dir_page, 0);
1103 f2fs_i_links_write(old_dir, false);
1104 }
1105 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1106 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1107 if (S_ISDIR(old_inode->i_mode))
1108 f2fs_add_ino_entry(sbi, old_inode->i_ino,
1109 TRANS_DIR_INO);
1110 }
1111
1112 f2fs_unlock_op(sbi);
1113
1114 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1115 f2fs_sync_fs(sbi->sb, 1);
1116
1117 f2fs_update_time(sbi, REQ_TIME);
1118 return 0;
1119
1120put_out_dir:
1121 f2fs_unlock_op(sbi);
1122 f2fs_put_page(new_page, 0);
1123out_dir:
1124 if (old_dir_entry)
1125 f2fs_put_page(old_dir_page, 0);
1126out_old:
1127 f2fs_put_page(old_page, 0);
1128out:
1129 iput(whiteout);
1130 return err;
1131}
1132
1133static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
1134 struct inode *new_dir, struct dentry *new_dentry)
1135{
1136 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
1137 struct inode *old_inode = d_inode(old_dentry);
1138 struct inode *new_inode = d_inode(new_dentry);
1139 struct page *old_dir_page, *new_dir_page;
1140 struct page *old_page, *new_page;
1141 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
1142 struct f2fs_dir_entry *old_entry, *new_entry;
1143 int old_nlink = 0, new_nlink = 0;
1144 int err;
1145
1146 if (unlikely(f2fs_cp_error(sbi)))
1147 return -EIO;
1148 if (!f2fs_is_checkpoint_ready(sbi))
1149 return -ENOSPC;
1150
1151 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1152 !projid_eq(F2FS_I(new_dir)->i_projid,
1153 F2FS_I(old_dentry->d_inode)->i_projid)) ||
1154 (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1155 !projid_eq(F2FS_I(old_dir)->i_projid,
1156 F2FS_I(new_dentry->d_inode)->i_projid)))
1157 return -EXDEV;
1158
1159 err = f2fs_dquot_initialize(old_dir);
1160 if (err)
1161 goto out;
1162
1163 err = f2fs_dquot_initialize(new_dir);
1164 if (err)
1165 goto out;
1166
1167 err = -ENOENT;
1168 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1169 if (!old_entry) {
1170 if (IS_ERR(old_page))
1171 err = PTR_ERR(old_page);
1172 goto out;
1173 }
1174
1175 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1176 if (!new_entry) {
1177 if (IS_ERR(new_page))
1178 err = PTR_ERR(new_page);
1179 goto out_old;
1180 }
1181
1182 /* prepare for updating ".." directory entry info later */
1183 if (old_dir != new_dir) {
1184 if (S_ISDIR(old_inode->i_mode)) {
1185 old_dir_entry = f2fs_parent_dir(old_inode,
1186 &old_dir_page);
1187 if (!old_dir_entry) {
1188 if (IS_ERR(old_dir_page))
1189 err = PTR_ERR(old_dir_page);
1190 goto out_new;
1191 }
1192 }
1193
1194 if (S_ISDIR(new_inode->i_mode)) {
1195 new_dir_entry = f2fs_parent_dir(new_inode,
1196 &new_dir_page);
1197 if (!new_dir_entry) {
1198 if (IS_ERR(new_dir_page))
1199 err = PTR_ERR(new_dir_page);
1200 goto out_old_dir;
1201 }
1202 }
1203 }
1204
1205 /*
1206 * If cross rename between file and directory those are not
1207 * in the same directory, we will inc nlink of file's parent
1208 * later, so we should check upper boundary of its nlink.
1209 */
1210 if ((!old_dir_entry || !new_dir_entry) &&
1211 old_dir_entry != new_dir_entry) {
1212 old_nlink = old_dir_entry ? -1 : 1;
1213 new_nlink = -old_nlink;
1214 err = -EMLINK;
1215 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) ||
1216 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX))
1217 goto out_new_dir;
1218 }
1219
1220 f2fs_balance_fs(sbi, true);
1221
1222 f2fs_lock_op(sbi);
1223
1224 /* update ".." directory entry info of old dentry */
1225 if (old_dir_entry)
1226 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir);
1227
1228 /* update ".." directory entry info of new dentry */
1229 if (new_dir_entry)
1230 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir);
1231
1232 /* update directory entry info of old dir inode */
1233 f2fs_set_link(old_dir, old_entry, old_page, new_inode);
1234
1235 f2fs_down_write(&F2FS_I(old_inode)->i_sem);
1236 if (!old_dir_entry)
1237 file_lost_pino(old_inode);
1238 else
1239 /* adjust dir's i_pino to pass fsck check */
1240 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1241 f2fs_up_write(&F2FS_I(old_inode)->i_sem);
1242
1243 old_dir->i_ctime = current_time(old_dir);
1244 if (old_nlink) {
1245 f2fs_down_write(&F2FS_I(old_dir)->i_sem);
1246 f2fs_i_links_write(old_dir, old_nlink > 0);
1247 f2fs_up_write(&F2FS_I(old_dir)->i_sem);
1248 }
1249 f2fs_mark_inode_dirty_sync(old_dir, false);
1250
1251 /* update directory entry info of new dir inode */
1252 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1253
1254 f2fs_down_write(&F2FS_I(new_inode)->i_sem);
1255 if (!new_dir_entry)
1256 file_lost_pino(new_inode);
1257 else
1258 /* adjust dir's i_pino to pass fsck check */
1259 f2fs_i_pino_write(new_inode, old_dir->i_ino);
1260 f2fs_up_write(&F2FS_I(new_inode)->i_sem);
1261
1262 new_dir->i_ctime = current_time(new_dir);
1263 if (new_nlink) {
1264 f2fs_down_write(&F2FS_I(new_dir)->i_sem);
1265 f2fs_i_links_write(new_dir, new_nlink > 0);
1266 f2fs_up_write(&F2FS_I(new_dir)->i_sem);
1267 }
1268 f2fs_mark_inode_dirty_sync(new_dir, false);
1269
1270 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1271 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
1272 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1273 }
1274
1275 f2fs_unlock_op(sbi);
1276
1277 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1278 f2fs_sync_fs(sbi->sb, 1);
1279
1280 f2fs_update_time(sbi, REQ_TIME);
1281 return 0;
1282out_new_dir:
1283 if (new_dir_entry) {
1284 f2fs_put_page(new_dir_page, 0);
1285 }
1286out_old_dir:
1287 if (old_dir_entry) {
1288 f2fs_put_page(old_dir_page, 0);
1289 }
1290out_new:
1291 f2fs_put_page(new_page, 0);
1292out_old:
1293 f2fs_put_page(old_page, 0);
1294out:
1295 return err;
1296}
1297
1298static int f2fs_rename2(struct user_namespace *mnt_userns,
1299 struct inode *old_dir, struct dentry *old_dentry,
1300 struct inode *new_dir, struct dentry *new_dentry,
1301 unsigned int flags)
1302{
1303 int err;
1304
1305 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
1306 return -EINVAL;
1307
1308 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1309 flags);
1310 if (err)
1311 return err;
1312
1313 if (flags & RENAME_EXCHANGE) {
1314 return f2fs_cross_rename(old_dir, old_dentry,
1315 new_dir, new_dentry);
1316 }
1317 /*
1318 * VFS has already handled the new dentry existence case,
1319 * here, we just deal with "RENAME_NOREPLACE" as regular rename.
1320 */
1321 return f2fs_rename(mnt_userns, old_dir, old_dentry,
1322 new_dir, new_dentry, flags);
1323}
1324
1325static const char *f2fs_encrypted_get_link(struct dentry *dentry,
1326 struct inode *inode,
1327 struct delayed_call *done)
1328{
1329 struct page *page;
1330 const char *target;
1331
1332 if (!dentry)
1333 return ERR_PTR(-ECHILD);
1334
1335 page = read_mapping_page(inode->i_mapping, 0, NULL);
1336 if (IS_ERR(page))
1337 return ERR_CAST(page);
1338
1339 target = fscrypt_get_symlink(inode, page_address(page),
1340 inode->i_sb->s_blocksize, done);
1341 put_page(page);
1342 return target;
1343}
1344
1345static int f2fs_encrypted_symlink_getattr(struct user_namespace *mnt_userns,
1346 const struct path *path,
1347 struct kstat *stat, u32 request_mask,
1348 unsigned int query_flags)
1349{
1350 f2fs_getattr(mnt_userns, path, stat, request_mask, query_flags);
1351
1352 return fscrypt_symlink_getattr(path, stat);
1353}
1354
1355const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
1356 .get_link = f2fs_encrypted_get_link,
1357 .getattr = f2fs_encrypted_symlink_getattr,
1358 .setattr = f2fs_setattr,
1359 .listxattr = f2fs_listxattr,
1360};
1361
1362const struct inode_operations f2fs_dir_inode_operations = {
1363 .create = f2fs_create,
1364 .lookup = f2fs_lookup,
1365 .link = f2fs_link,
1366 .unlink = f2fs_unlink,
1367 .symlink = f2fs_symlink,
1368 .mkdir = f2fs_mkdir,
1369 .rmdir = f2fs_rmdir,
1370 .mknod = f2fs_mknod,
1371 .rename = f2fs_rename2,
1372 .tmpfile = f2fs_tmpfile,
1373 .getattr = f2fs_getattr,
1374 .setattr = f2fs_setattr,
1375 .get_inode_acl = f2fs_get_acl,
1376 .set_acl = f2fs_set_acl,
1377 .listxattr = f2fs_listxattr,
1378 .fiemap = f2fs_fiemap,
1379 .fileattr_get = f2fs_fileattr_get,
1380 .fileattr_set = f2fs_fileattr_set,
1381};
1382
1383const struct inode_operations f2fs_symlink_inode_operations = {
1384 .get_link = f2fs_get_link,
1385 .getattr = f2fs_getattr,
1386 .setattr = f2fs_setattr,
1387 .listxattr = f2fs_listxattr,
1388};
1389
1390const struct inode_operations f2fs_special_inode_operations = {
1391 .getattr = f2fs_getattr,
1392 .setattr = f2fs_setattr,
1393 .get_inode_acl = f2fs_get_acl,
1394 .set_acl = f2fs_set_acl,
1395 .listxattr = f2fs_listxattr,
1396};