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
f2fs_new_inode(struct inode * dir,umode_t mode)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(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 (f2fs_may_inline_dentry(inode))
95 set_inode_flag(inode, FI_INLINE_DENTRY);
96
97 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
98 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
99 if (f2fs_has_inline_xattr(inode))
100 xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
101 /* Otherwise, will be 0 */
102 } else if (f2fs_has_inline_xattr(inode) ||
103 f2fs_has_inline_dentry(inode)) {
104 xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
105 }
106 F2FS_I(inode)->i_inline_xattr_size = xattr_size;
107
108 F2FS_I(inode)->i_flags =
109 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
110
111 if (S_ISDIR(inode->i_mode))
112 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL;
113
114 if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
115 set_inode_flag(inode, FI_PROJ_INHERIT);
116
117 if (f2fs_sb_has_compression(sbi)) {
118 /* Inherit the compression flag in directory */
119 if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) &&
120 f2fs_may_compress(inode))
121 set_compress_context(inode);
122 }
123
124 /* Should enable inline_data after compression set */
125 if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
126 set_inode_flag(inode, FI_INLINE_DATA);
127
128 stat_inc_inline_xattr(inode);
129 stat_inc_inline_inode(inode);
130 stat_inc_inline_dir(inode);
131
132 f2fs_set_inode_flags(inode);
133
134 f2fs_init_extent_tree(inode);
135
136 trace_f2fs_new_inode(inode, 0);
137 return inode;
138
139 fail:
140 trace_f2fs_new_inode(inode, err);
141 make_bad_inode(inode);
142 if (nid_free)
143 set_inode_flag(inode, FI_FREE_NID);
144 iput(inode);
145 return ERR_PTR(err);
146 fail_drop:
147 trace_f2fs_new_inode(inode, err);
148 dquot_drop(inode);
149 inode->i_flags |= S_NOQUOTA;
150 if (nid_free)
151 set_inode_flag(inode, FI_FREE_NID);
152 clear_nlink(inode);
153 unlock_new_inode(inode);
154 iput(inode);
155 return ERR_PTR(err);
156 }
157
is_extension_exist(const unsigned char * s,const char * sub,bool tmp_ext)158 static inline int is_extension_exist(const unsigned char *s, const char *sub,
159 bool tmp_ext)
160 {
161 size_t slen = strlen(s);
162 size_t sublen = strlen(sub);
163 int i;
164
165 if (sublen == 1 && *sub == '*')
166 return 1;
167
168 /*
169 * filename format of multimedia file should be defined as:
170 * "filename + '.' + extension + (optional: '.' + temp extension)".
171 */
172 if (slen < sublen + 2)
173 return 0;
174
175 if (!tmp_ext) {
176 /* file has no temp extension */
177 if (s[slen - sublen - 1] != '.')
178 return 0;
179 return !strncasecmp(s + slen - sublen, sub, sublen);
180 }
181
182 for (i = 1; i < slen - sublen; i++) {
183 if (s[i] != '.')
184 continue;
185 if (!strncasecmp(s + i + 1, sub, sublen))
186 return 1;
187 }
188
189 return 0;
190 }
191
192 /*
193 * Set file's temperature for hot/cold data separation
194 */
set_file_temperature(struct f2fs_sb_info * sbi,struct inode * inode,const unsigned char * name)195 static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
196 const unsigned char *name)
197 {
198 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
199 int i, cold_count, hot_count;
200
201 f2fs_down_read(&sbi->sb_lock);
202
203 cold_count = le32_to_cpu(sbi->raw_super->extension_count);
204 hot_count = sbi->raw_super->hot_ext_count;
205
206 for (i = 0; i < cold_count + hot_count; i++) {
207 if (is_extension_exist(name, extlist[i], true))
208 break;
209 }
210
211 f2fs_up_read(&sbi->sb_lock);
212
213 if (i == cold_count + hot_count)
214 return;
215
216 if (i < cold_count)
217 file_set_cold(inode);
218 else
219 file_set_hot(inode);
220 }
221
f2fs_update_extension_list(struct f2fs_sb_info * sbi,const char * name,bool hot,bool set)222 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
223 bool hot, bool set)
224 {
225 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
226 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
227 int hot_count = sbi->raw_super->hot_ext_count;
228 int total_count = cold_count + hot_count;
229 int start, count;
230 int i;
231
232 if (set) {
233 if (total_count == F2FS_MAX_EXTENSION)
234 return -EINVAL;
235 } else {
236 if (!hot && !cold_count)
237 return -EINVAL;
238 if (hot && !hot_count)
239 return -EINVAL;
240 }
241
242 if (hot) {
243 start = cold_count;
244 count = total_count;
245 } else {
246 start = 0;
247 count = cold_count;
248 }
249
250 for (i = start; i < count; i++) {
251 if (strcmp(name, extlist[i]))
252 continue;
253
254 if (set)
255 return -EINVAL;
256
257 memcpy(extlist[i], extlist[i + 1],
258 F2FS_EXTENSION_LEN * (total_count - i - 1));
259 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN);
260 if (hot)
261 sbi->raw_super->hot_ext_count = hot_count - 1;
262 else
263 sbi->raw_super->extension_count =
264 cpu_to_le32(cold_count - 1);
265 return 0;
266 }
267
268 if (!set)
269 return -EINVAL;
270
271 if (hot) {
272 memcpy(extlist[count], name, strlen(name));
273 sbi->raw_super->hot_ext_count = hot_count + 1;
274 } else {
275 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN];
276
277 memcpy(buf, &extlist[cold_count],
278 F2FS_EXTENSION_LEN * hot_count);
279 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN);
280 memcpy(extlist[cold_count], name, strlen(name));
281 memcpy(&extlist[cold_count + 1], buf,
282 F2FS_EXTENSION_LEN * hot_count);
283 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1);
284 }
285 return 0;
286 }
287
set_compress_inode(struct f2fs_sb_info * sbi,struct inode * inode,const unsigned char * name)288 static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
289 const unsigned char *name)
290 {
291 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
292 unsigned char (*ext)[F2FS_EXTENSION_LEN];
293 unsigned int ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
294 int i, cold_count, hot_count;
295
296 if (!f2fs_sb_has_compression(sbi) ||
297 is_inode_flag_set(inode, FI_COMPRESSED_FILE) ||
298 F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
299 !f2fs_may_compress(inode))
300 return;
301
302 f2fs_down_read(&sbi->sb_lock);
303
304 cold_count = le32_to_cpu(sbi->raw_super->extension_count);
305 hot_count = sbi->raw_super->hot_ext_count;
306
307 for (i = cold_count; i < cold_count + hot_count; i++) {
308 if (is_extension_exist(name, extlist[i], false)) {
309 f2fs_up_read(&sbi->sb_lock);
310 return;
311 }
312 }
313
314 f2fs_up_read(&sbi->sb_lock);
315
316 ext = F2FS_OPTION(sbi).extensions;
317
318 for (i = 0; i < ext_cnt; i++) {
319 if (!is_extension_exist(name, ext[i], false))
320 continue;
321
322 /* Do not use inline_data with compression */
323 stat_dec_inline_inode(inode);
324 clear_inode_flag(inode, FI_INLINE_DATA);
325 set_compress_context(inode);
326 return;
327 }
328 }
329
f2fs_create(struct inode * dir,struct dentry * dentry,umode_t mode,bool excl)330 static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
331 bool excl)
332 {
333 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
334 struct inode *inode;
335 nid_t ino = 0;
336 int err;
337
338 if (unlikely(f2fs_cp_error(sbi)))
339 return -EIO;
340 if (!f2fs_is_checkpoint_ready(sbi))
341 return -ENOSPC;
342
343 err = dquot_initialize(dir);
344 if (err)
345 return err;
346
347 inode = f2fs_new_inode(dir, mode);
348 if (IS_ERR(inode))
349 return PTR_ERR(inode);
350
351 if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
352 set_file_temperature(sbi, inode, dentry->d_name.name);
353
354 set_compress_inode(sbi, inode, dentry->d_name.name);
355
356 inode->i_op = &f2fs_file_inode_operations;
357 inode->i_fop = &f2fs_file_operations;
358 inode->i_mapping->a_ops = &f2fs_dblock_aops;
359 ino = inode->i_ino;
360
361 f2fs_lock_op(sbi);
362 err = f2fs_add_link(dentry, inode);
363 if (err)
364 goto out;
365 f2fs_unlock_op(sbi);
366
367 f2fs_alloc_nid_done(sbi, ino);
368
369 d_instantiate_new(dentry, inode);
370
371 if (IS_DIRSYNC(dir))
372 f2fs_sync_fs(sbi->sb, 1);
373
374 f2fs_balance_fs(sbi, true);
375 return 0;
376 out:
377 f2fs_handle_failed_inode(inode);
378 return err;
379 }
380
f2fs_link(struct dentry * old_dentry,struct inode * dir,struct dentry * dentry)381 static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
382 struct dentry *dentry)
383 {
384 struct inode *inode = d_inode(old_dentry);
385 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
386 int err;
387
388 if (unlikely(f2fs_cp_error(sbi)))
389 return -EIO;
390 if (!f2fs_is_checkpoint_ready(sbi))
391 return -ENOSPC;
392
393 err = fscrypt_prepare_link(old_dentry, dir, dentry);
394 if (err)
395 return err;
396
397 if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
398 (!projid_eq(F2FS_I(dir)->i_projid,
399 F2FS_I(old_dentry->d_inode)->i_projid)))
400 return -EXDEV;
401
402 err = dquot_initialize(dir);
403 if (err)
404 return err;
405
406 f2fs_balance_fs(sbi, true);
407
408 inode->i_ctime = current_time(inode);
409 ihold(inode);
410
411 set_inode_flag(inode, FI_INC_LINK);
412 f2fs_lock_op(sbi);
413 err = f2fs_add_link(dentry, inode);
414 if (err)
415 goto out;
416 f2fs_unlock_op(sbi);
417
418 d_instantiate(dentry, inode);
419
420 if (IS_DIRSYNC(dir))
421 f2fs_sync_fs(sbi->sb, 1);
422 return 0;
423 out:
424 clear_inode_flag(inode, FI_INC_LINK);
425 iput(inode);
426 f2fs_unlock_op(sbi);
427 return err;
428 }
429
f2fs_get_parent(struct dentry * child)430 struct dentry *f2fs_get_parent(struct dentry *child)
431 {
432 struct qstr dotdot = QSTR_INIT("..", 2);
433 struct page *page;
434 unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot, &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
__recover_dot_dentries(struct inode * dir,nid_t pino)444 static int __recover_dot_dentries(struct inode *dir, nid_t pino)
445 {
446 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
447 struct qstr dot = QSTR_INIT(".", 1);
448 struct qstr dotdot = QSTR_INIT("..", 2);
449 struct f2fs_dir_entry *de;
450 struct page *page;
451 int err = 0;
452
453 if (f2fs_readonly(sbi->sb)) {
454 f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint",
455 dir->i_ino, pino);
456 return 0;
457 }
458
459 err = dquot_initialize(dir);
460 if (err)
461 return err;
462
463 f2fs_balance_fs(sbi, true);
464
465 f2fs_lock_op(sbi);
466
467 de = f2fs_find_entry(dir, &dot, &page);
468 if (de) {
469 f2fs_put_page(page, 0);
470 } else if (IS_ERR(page)) {
471 err = PTR_ERR(page);
472 goto out;
473 } else {
474 err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR);
475 if (err)
476 goto out;
477 }
478
479 de = f2fs_find_entry(dir, &dotdot, &page);
480 if (de)
481 f2fs_put_page(page, 0);
482 else if (IS_ERR(page))
483 err = PTR_ERR(page);
484 else
485 err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR);
486 out:
487 if (!err)
488 clear_inode_flag(dir, FI_INLINE_DOTS);
489
490 f2fs_unlock_op(sbi);
491 return err;
492 }
493
f2fs_lookup(struct inode * dir,struct dentry * dentry,unsigned int flags)494 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
495 unsigned int flags)
496 {
497 struct inode *inode = NULL;
498 struct f2fs_dir_entry *de;
499 struct page *page;
500 struct dentry *new;
501 nid_t ino = -1;
502 int err = 0;
503 unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));
504 struct f2fs_filename fname;
505
506 trace_f2fs_lookup_start(dir, dentry, flags);
507
508 if (dentry->d_name.len > F2FS_NAME_LEN) {
509 err = -ENAMETOOLONG;
510 goto out;
511 }
512
513 err = f2fs_prepare_lookup(dir, dentry, &fname);
514 generic_set_encrypted_ci_d_ops(dentry);
515 if (err == -ENOENT)
516 goto out_splice;
517 if (err)
518 goto out;
519 de = __f2fs_find_entry(dir, &fname, &page);
520 f2fs_free_filename(&fname);
521
522 if (!de) {
523 if (IS_ERR(page)) {
524 err = PTR_ERR(page);
525 goto out;
526 }
527 err = -ENOENT;
528 goto out_splice;
529 }
530
531 ino = le32_to_cpu(de->ino);
532 f2fs_put_page(page, 0);
533
534 inode = f2fs_iget(dir->i_sb, ino);
535 if (IS_ERR(inode)) {
536 err = PTR_ERR(inode);
537 goto out;
538 }
539
540 if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {
541 err = __recover_dot_dentries(dir, root_ino);
542 if (err)
543 goto out_iput;
544 }
545
546 if (f2fs_has_inline_dots(inode)) {
547 err = __recover_dot_dentries(inode, dir->i_ino);
548 if (err)
549 goto out_iput;
550 }
551 if (IS_ENCRYPTED(dir) &&
552 (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
553 !fscrypt_has_permitted_context(dir, inode)) {
554 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
555 dir->i_ino, inode->i_ino);
556 err = -EPERM;
557 goto out_iput;
558 }
559 out_splice:
560 #ifdef CONFIG_UNICODE
561 if (!inode && IS_CASEFOLDED(dir)) {
562 /* Eventually we want to call d_add_ci(dentry, NULL)
563 * for negative dentries in the encoding case as
564 * well. For now, prevent the negative dentry
565 * from being cached.
566 */
567 trace_f2fs_lookup_end(dir, dentry, ino, err);
568 return NULL;
569 }
570 #endif
571 new = d_splice_alias(inode, dentry);
572 err = PTR_ERR_OR_ZERO(new);
573 trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err);
574 return new;
575 out_iput:
576 iput(inode);
577 out:
578 trace_f2fs_lookup_end(dir, dentry, ino, err);
579 return ERR_PTR(err);
580 }
581
f2fs_unlink(struct inode * dir,struct dentry * dentry)582 static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
583 {
584 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
585 struct inode *inode = d_inode(dentry);
586 struct f2fs_dir_entry *de;
587 struct page *page;
588 int err;
589
590 trace_f2fs_unlink_enter(dir, dentry);
591
592 if (unlikely(f2fs_cp_error(sbi))) {
593 err = -EIO;
594 goto fail;
595 }
596
597 err = dquot_initialize(dir);
598 if (err)
599 goto fail;
600 err = dquot_initialize(inode);
601 if (err)
602 goto fail;
603
604 de = f2fs_find_entry(dir, &dentry->d_name, &page);
605 if (!de) {
606 if (IS_ERR(page))
607 err = PTR_ERR(page);
608 goto fail;
609 }
610
611 f2fs_balance_fs(sbi, true);
612
613 f2fs_lock_op(sbi);
614 err = f2fs_acquire_orphan_inode(sbi);
615 if (err) {
616 f2fs_unlock_op(sbi);
617 f2fs_put_page(page, 0);
618 goto fail;
619 }
620 f2fs_delete_entry(de, page, dir, inode);
621 f2fs_unlock_op(sbi);
622
623 #ifdef CONFIG_UNICODE
624 /* VFS negative dentries are incompatible with Encoding and
625 * Case-insensitiveness. Eventually we'll want avoid
626 * invalidating the dentries here, alongside with returning the
627 * negative dentries at f2fs_lookup(), when it is better
628 * supported by the VFS for the CI case.
629 */
630 if (IS_CASEFOLDED(dir))
631 d_invalidate(dentry);
632 #endif
633 if (IS_DIRSYNC(dir))
634 f2fs_sync_fs(sbi->sb, 1);
635 fail:
636 trace_f2fs_unlink_exit(inode, err);
637 return err;
638 }
639
f2fs_get_link(struct dentry * dentry,struct inode * inode,struct delayed_call * done)640 static const char *f2fs_get_link(struct dentry *dentry,
641 struct inode *inode,
642 struct delayed_call *done)
643 {
644 const char *link = page_get_link(dentry, inode, done);
645
646 if (!IS_ERR(link) && !*link) {
647 /* this is broken symlink case */
648 do_delayed_call(done);
649 clear_delayed_call(done);
650 link = ERR_PTR(-ENOENT);
651 }
652 return link;
653 }
654
f2fs_symlink(struct inode * dir,struct dentry * dentry,const char * symname)655 static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
656 const char *symname)
657 {
658 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
659 struct inode *inode;
660 size_t len = strlen(symname);
661 struct fscrypt_str disk_link;
662 int err;
663
664 if (unlikely(f2fs_cp_error(sbi)))
665 return -EIO;
666 if (!f2fs_is_checkpoint_ready(sbi))
667 return -ENOSPC;
668
669 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
670 &disk_link);
671 if (err)
672 return err;
673
674 err = dquot_initialize(dir);
675 if (err)
676 return err;
677
678 inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO);
679 if (IS_ERR(inode))
680 return PTR_ERR(inode);
681
682 if (IS_ENCRYPTED(inode))
683 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
684 else
685 inode->i_op = &f2fs_symlink_inode_operations;
686 inode_nohighmem(inode);
687 inode->i_mapping->a_ops = &f2fs_dblock_aops;
688
689 f2fs_lock_op(sbi);
690 err = f2fs_add_link(dentry, inode);
691 if (err)
692 goto out_f2fs_handle_failed_inode;
693 f2fs_unlock_op(sbi);
694 f2fs_alloc_nid_done(sbi, inode->i_ino);
695
696 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
697 if (err)
698 goto err_out;
699
700 err = page_symlink(inode, disk_link.name, disk_link.len);
701
702 err_out:
703 d_instantiate_new(dentry, inode);
704
705 /*
706 * Let's flush symlink data in order to avoid broken symlink as much as
707 * possible. Nevertheless, fsyncing is the best way, but there is no
708 * way to get a file descriptor in order to flush that.
709 *
710 * Note that, it needs to do dir->fsync to make this recoverable.
711 * If the symlink path is stored into inline_data, there is no
712 * performance regression.
713 */
714 if (!err) {
715 filemap_write_and_wait_range(inode->i_mapping, 0,
716 disk_link.len - 1);
717
718 if (IS_DIRSYNC(dir))
719 f2fs_sync_fs(sbi->sb, 1);
720 } else {
721 f2fs_unlink(dir, dentry);
722 }
723
724 f2fs_balance_fs(sbi, true);
725 goto out_free_encrypted_link;
726
727 out_f2fs_handle_failed_inode:
728 f2fs_handle_failed_inode(inode);
729 out_free_encrypted_link:
730 if (disk_link.name != (unsigned char *)symname)
731 kfree(disk_link.name);
732 return err;
733 }
734
f2fs_mkdir(struct inode * dir,struct dentry * dentry,umode_t mode)735 static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
736 {
737 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
738 struct inode *inode;
739 int err;
740
741 if (unlikely(f2fs_cp_error(sbi)))
742 return -EIO;
743
744 err = dquot_initialize(dir);
745 if (err)
746 return err;
747
748 inode = f2fs_new_inode(dir, S_IFDIR | mode);
749 if (IS_ERR(inode))
750 return PTR_ERR(inode);
751
752 inode->i_op = &f2fs_dir_inode_operations;
753 inode->i_fop = &f2fs_dir_operations;
754 inode->i_mapping->a_ops = &f2fs_dblock_aops;
755 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
756
757 set_inode_flag(inode, FI_INC_LINK);
758 f2fs_lock_op(sbi);
759 err = f2fs_add_link(dentry, inode);
760 if (err)
761 goto out_fail;
762 f2fs_unlock_op(sbi);
763
764 f2fs_alloc_nid_done(sbi, inode->i_ino);
765
766 d_instantiate_new(dentry, inode);
767
768 if (IS_DIRSYNC(dir))
769 f2fs_sync_fs(sbi->sb, 1);
770
771 f2fs_balance_fs(sbi, true);
772 return 0;
773
774 out_fail:
775 clear_inode_flag(inode, FI_INC_LINK);
776 f2fs_handle_failed_inode(inode);
777 return err;
778 }
779
f2fs_rmdir(struct inode * dir,struct dentry * dentry)780 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
781 {
782 struct inode *inode = d_inode(dentry);
783
784 if (f2fs_empty_dir(inode))
785 return f2fs_unlink(dir, dentry);
786 return -ENOTEMPTY;
787 }
788
f2fs_mknod(struct inode * dir,struct dentry * dentry,umode_t mode,dev_t rdev)789 static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
790 umode_t mode, dev_t rdev)
791 {
792 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
793 struct inode *inode;
794 int err = 0;
795
796 if (unlikely(f2fs_cp_error(sbi)))
797 return -EIO;
798 if (!f2fs_is_checkpoint_ready(sbi))
799 return -ENOSPC;
800
801 err = dquot_initialize(dir);
802 if (err)
803 return err;
804
805 inode = f2fs_new_inode(dir, mode);
806 if (IS_ERR(inode))
807 return PTR_ERR(inode);
808
809 init_special_inode(inode, inode->i_mode, rdev);
810 inode->i_op = &f2fs_special_inode_operations;
811
812 f2fs_lock_op(sbi);
813 err = f2fs_add_link(dentry, inode);
814 if (err)
815 goto out;
816 f2fs_unlock_op(sbi);
817
818 f2fs_alloc_nid_done(sbi, inode->i_ino);
819
820 d_instantiate_new(dentry, inode);
821
822 if (IS_DIRSYNC(dir))
823 f2fs_sync_fs(sbi->sb, 1);
824
825 f2fs_balance_fs(sbi, true);
826 return 0;
827 out:
828 f2fs_handle_failed_inode(inode);
829 return err;
830 }
831
__f2fs_tmpfile(struct inode * dir,struct dentry * dentry,umode_t mode,struct inode ** whiteout)832 static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry,
833 umode_t mode, struct inode **whiteout)
834 {
835 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
836 struct inode *inode;
837 int err;
838
839 err = dquot_initialize(dir);
840 if (err)
841 return err;
842
843 inode = f2fs_new_inode(dir, mode);
844 if (IS_ERR(inode))
845 return PTR_ERR(inode);
846
847 if (whiteout) {
848 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
849 inode->i_op = &f2fs_special_inode_operations;
850 } else {
851 inode->i_op = &f2fs_file_inode_operations;
852 inode->i_fop = &f2fs_file_operations;
853 inode->i_mapping->a_ops = &f2fs_dblock_aops;
854 }
855
856 f2fs_lock_op(sbi);
857 err = f2fs_acquire_orphan_inode(sbi);
858 if (err)
859 goto out;
860
861 err = f2fs_do_tmpfile(inode, dir);
862 if (err)
863 goto release_out;
864
865 /*
866 * add this non-linked tmpfile to orphan list, in this way we could
867 * remove all unused data of tmpfile after abnormal power-off.
868 */
869 f2fs_add_orphan_inode(inode);
870 f2fs_alloc_nid_done(sbi, inode->i_ino);
871
872 if (whiteout) {
873 f2fs_i_links_write(inode, false);
874
875 spin_lock(&inode->i_lock);
876 inode->i_state |= I_LINKABLE;
877 spin_unlock(&inode->i_lock);
878
879 *whiteout = inode;
880 } else {
881 d_tmpfile(dentry, inode);
882 }
883 /* link_count was changed by d_tmpfile as well. */
884 f2fs_unlock_op(sbi);
885 unlock_new_inode(inode);
886
887 f2fs_balance_fs(sbi, true);
888 return 0;
889
890 release_out:
891 f2fs_release_orphan_inode(sbi);
892 out:
893 f2fs_handle_failed_inode(inode);
894 return err;
895 }
896
f2fs_tmpfile(struct inode * dir,struct dentry * dentry,umode_t mode)897 static int f2fs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
898 {
899 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
900
901 if (unlikely(f2fs_cp_error(sbi)))
902 return -EIO;
903 if (!f2fs_is_checkpoint_ready(sbi))
904 return -ENOSPC;
905
906 return __f2fs_tmpfile(dir, dentry, mode, NULL);
907 }
908
f2fs_create_whiteout(struct inode * dir,struct inode ** whiteout)909 static int f2fs_create_whiteout(struct inode *dir, struct inode **whiteout)
910 {
911 if (unlikely(f2fs_cp_error(F2FS_I_SB(dir))))
912 return -EIO;
913
914 return __f2fs_tmpfile(dir, NULL, S_IFCHR | WHITEOUT_MODE, whiteout);
915 }
916
f2fs_rename(struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry,unsigned int flags)917 static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
918 struct inode *new_dir, struct dentry *new_dentry,
919 unsigned int flags)
920 {
921 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
922 struct inode *old_inode = d_inode(old_dentry);
923 struct inode *new_inode = d_inode(new_dentry);
924 struct inode *whiteout = NULL;
925 struct page *old_dir_page = NULL;
926 struct page *old_page, *new_page = NULL;
927 struct f2fs_dir_entry *old_dir_entry = NULL;
928 struct f2fs_dir_entry *old_entry;
929 struct f2fs_dir_entry *new_entry;
930 int err;
931
932 if (unlikely(f2fs_cp_error(sbi)))
933 return -EIO;
934 if (!f2fs_is_checkpoint_ready(sbi))
935 return -ENOSPC;
936
937 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
938 (!projid_eq(F2FS_I(new_dir)->i_projid,
939 F2FS_I(old_dentry->d_inode)->i_projid)))
940 return -EXDEV;
941
942 /*
943 * If new_inode is null, the below renaming flow will
944 * add a link in old_dir which can conver inline_dir.
945 * After then, if we failed to get the entry due to other
946 * reasons like ENOMEM, we had to remove the new entry.
947 * Instead of adding such the error handling routine, let's
948 * simply convert first here.
949 */
950 if (old_dir == new_dir && !new_inode) {
951 err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
952 if (err)
953 return err;
954 }
955
956 if (flags & RENAME_WHITEOUT) {
957 err = f2fs_create_whiteout(old_dir, &whiteout);
958 if (err)
959 return err;
960 }
961
962 err = dquot_initialize(old_dir);
963 if (err)
964 goto out;
965
966 err = dquot_initialize(new_dir);
967 if (err)
968 goto out;
969
970 if (new_inode) {
971 err = dquot_initialize(new_inode);
972 if (err)
973 goto out;
974 }
975
976 err = -ENOENT;
977 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
978 if (!old_entry) {
979 if (IS_ERR(old_page))
980 err = PTR_ERR(old_page);
981 goto out;
982 }
983
984 if (S_ISDIR(old_inode->i_mode)) {
985 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page);
986 if (!old_dir_entry) {
987 if (IS_ERR(old_dir_page))
988 err = PTR_ERR(old_dir_page);
989 goto out_old;
990 }
991 }
992
993 if (new_inode) {
994
995 err = -ENOTEMPTY;
996 if (old_dir_entry && !f2fs_empty_dir(new_inode))
997 goto out_dir;
998
999 err = -ENOENT;
1000 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name,
1001 &new_page);
1002 if (!new_entry) {
1003 if (IS_ERR(new_page))
1004 err = PTR_ERR(new_page);
1005 goto out_dir;
1006 }
1007
1008 f2fs_balance_fs(sbi, true);
1009
1010 f2fs_lock_op(sbi);
1011
1012 err = f2fs_acquire_orphan_inode(sbi);
1013 if (err)
1014 goto put_out_dir;
1015
1016 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1017 new_page = NULL;
1018
1019 new_inode->i_ctime = current_time(new_inode);
1020 f2fs_down_write(&F2FS_I(new_inode)->i_sem);
1021 if (old_dir_entry)
1022 f2fs_i_links_write(new_inode, false);
1023 f2fs_i_links_write(new_inode, false);
1024 f2fs_up_write(&F2FS_I(new_inode)->i_sem);
1025
1026 if (!new_inode->i_nlink)
1027 f2fs_add_orphan_inode(new_inode);
1028 else
1029 f2fs_release_orphan_inode(sbi);
1030 } else {
1031 f2fs_balance_fs(sbi, true);
1032
1033 f2fs_lock_op(sbi);
1034
1035 err = f2fs_add_link(new_dentry, old_inode);
1036 if (err) {
1037 f2fs_unlock_op(sbi);
1038 goto out_dir;
1039 }
1040
1041 if (old_dir_entry)
1042 f2fs_i_links_write(new_dir, true);
1043 }
1044
1045 f2fs_down_write(&F2FS_I(old_inode)->i_sem);
1046 if (!old_dir_entry || whiteout)
1047 file_lost_pino(old_inode);
1048 else
1049 /* adjust dir's i_pino to pass fsck check */
1050 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1051 f2fs_up_write(&F2FS_I(old_inode)->i_sem);
1052
1053 old_inode->i_ctime = current_time(old_inode);
1054 f2fs_mark_inode_dirty_sync(old_inode, false);
1055
1056 f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
1057 old_page = NULL;
1058
1059 if (whiteout) {
1060 set_inode_flag(whiteout, FI_INC_LINK);
1061 err = f2fs_add_link(old_dentry, whiteout);
1062 if (err)
1063 goto put_out_dir;
1064
1065 spin_lock(&whiteout->i_lock);
1066 whiteout->i_state &= ~I_LINKABLE;
1067 spin_unlock(&whiteout->i_lock);
1068
1069 iput(whiteout);
1070 }
1071
1072 if (old_dir_entry) {
1073 if (old_dir != new_dir)
1074 f2fs_set_link(old_inode, old_dir_entry,
1075 old_dir_page, new_dir);
1076 else
1077 f2fs_put_page(old_dir_page, 0);
1078 f2fs_i_links_write(old_dir, false);
1079 }
1080 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1081 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1082 if (S_ISDIR(old_inode->i_mode))
1083 f2fs_add_ino_entry(sbi, old_inode->i_ino,
1084 TRANS_DIR_INO);
1085 }
1086
1087 f2fs_unlock_op(sbi);
1088
1089 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1090 f2fs_sync_fs(sbi->sb, 1);
1091
1092 f2fs_update_time(sbi, REQ_TIME);
1093 return 0;
1094
1095 put_out_dir:
1096 f2fs_unlock_op(sbi);
1097 f2fs_put_page(new_page, 0);
1098 out_dir:
1099 if (old_dir_entry)
1100 f2fs_put_page(old_dir_page, 0);
1101 out_old:
1102 f2fs_put_page(old_page, 0);
1103 out:
1104 if (whiteout)
1105 iput(whiteout);
1106 return err;
1107 }
1108
f2fs_cross_rename(struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry)1109 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
1110 struct inode *new_dir, struct dentry *new_dentry)
1111 {
1112 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
1113 struct inode *old_inode = d_inode(old_dentry);
1114 struct inode *new_inode = d_inode(new_dentry);
1115 struct page *old_dir_page, *new_dir_page;
1116 struct page *old_page, *new_page;
1117 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
1118 struct f2fs_dir_entry *old_entry, *new_entry;
1119 int old_nlink = 0, new_nlink = 0;
1120 int err;
1121
1122 if (unlikely(f2fs_cp_error(sbi)))
1123 return -EIO;
1124 if (!f2fs_is_checkpoint_ready(sbi))
1125 return -ENOSPC;
1126
1127 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1128 !projid_eq(F2FS_I(new_dir)->i_projid,
1129 F2FS_I(old_dentry->d_inode)->i_projid)) ||
1130 (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1131 !projid_eq(F2FS_I(old_dir)->i_projid,
1132 F2FS_I(new_dentry->d_inode)->i_projid)))
1133 return -EXDEV;
1134
1135 err = dquot_initialize(old_dir);
1136 if (err)
1137 goto out;
1138
1139 err = dquot_initialize(new_dir);
1140 if (err)
1141 goto out;
1142
1143 err = -ENOENT;
1144 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1145 if (!old_entry) {
1146 if (IS_ERR(old_page))
1147 err = PTR_ERR(old_page);
1148 goto out;
1149 }
1150
1151 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1152 if (!new_entry) {
1153 if (IS_ERR(new_page))
1154 err = PTR_ERR(new_page);
1155 goto out_old;
1156 }
1157
1158 /* prepare for updating ".." directory entry info later */
1159 if (old_dir != new_dir) {
1160 if (S_ISDIR(old_inode->i_mode)) {
1161 old_dir_entry = f2fs_parent_dir(old_inode,
1162 &old_dir_page);
1163 if (!old_dir_entry) {
1164 if (IS_ERR(old_dir_page))
1165 err = PTR_ERR(old_dir_page);
1166 goto out_new;
1167 }
1168 }
1169
1170 if (S_ISDIR(new_inode->i_mode)) {
1171 new_dir_entry = f2fs_parent_dir(new_inode,
1172 &new_dir_page);
1173 if (!new_dir_entry) {
1174 if (IS_ERR(new_dir_page))
1175 err = PTR_ERR(new_dir_page);
1176 goto out_old_dir;
1177 }
1178 }
1179 }
1180
1181 /*
1182 * If cross rename between file and directory those are not
1183 * in the same directory, we will inc nlink of file's parent
1184 * later, so we should check upper boundary of its nlink.
1185 */
1186 if ((!old_dir_entry || !new_dir_entry) &&
1187 old_dir_entry != new_dir_entry) {
1188 old_nlink = old_dir_entry ? -1 : 1;
1189 new_nlink = -old_nlink;
1190 err = -EMLINK;
1191 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) ||
1192 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX))
1193 goto out_new_dir;
1194 }
1195
1196 f2fs_balance_fs(sbi, true);
1197
1198 f2fs_lock_op(sbi);
1199
1200 /* update ".." directory entry info of old dentry */
1201 if (old_dir_entry)
1202 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir);
1203
1204 /* update ".." directory entry info of new dentry */
1205 if (new_dir_entry)
1206 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir);
1207
1208 /* update directory entry info of old dir inode */
1209 f2fs_set_link(old_dir, old_entry, old_page, new_inode);
1210
1211 f2fs_down_write(&F2FS_I(old_inode)->i_sem);
1212 if (!old_dir_entry)
1213 file_lost_pino(old_inode);
1214 else
1215 /* adjust dir's i_pino to pass fsck check */
1216 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1217 f2fs_up_write(&F2FS_I(old_inode)->i_sem);
1218
1219 old_dir->i_ctime = current_time(old_dir);
1220 if (old_nlink) {
1221 f2fs_down_write(&F2FS_I(old_dir)->i_sem);
1222 f2fs_i_links_write(old_dir, old_nlink > 0);
1223 f2fs_up_write(&F2FS_I(old_dir)->i_sem);
1224 }
1225 f2fs_mark_inode_dirty_sync(old_dir, false);
1226
1227 /* update directory entry info of new dir inode */
1228 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1229
1230 f2fs_down_write(&F2FS_I(new_inode)->i_sem);
1231 if (!new_dir_entry)
1232 file_lost_pino(new_inode);
1233 else
1234 /* adjust dir's i_pino to pass fsck check */
1235 f2fs_i_pino_write(new_inode, old_dir->i_ino);
1236 f2fs_up_write(&F2FS_I(new_inode)->i_sem);
1237
1238 new_dir->i_ctime = current_time(new_dir);
1239 if (new_nlink) {
1240 f2fs_down_write(&F2FS_I(new_dir)->i_sem);
1241 f2fs_i_links_write(new_dir, new_nlink > 0);
1242 f2fs_up_write(&F2FS_I(new_dir)->i_sem);
1243 }
1244 f2fs_mark_inode_dirty_sync(new_dir, false);
1245
1246 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1247 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
1248 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1249 }
1250
1251 f2fs_unlock_op(sbi);
1252
1253 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1254 f2fs_sync_fs(sbi->sb, 1);
1255
1256 f2fs_update_time(sbi, REQ_TIME);
1257 return 0;
1258 out_new_dir:
1259 if (new_dir_entry) {
1260 f2fs_put_page(new_dir_page, 0);
1261 }
1262 out_old_dir:
1263 if (old_dir_entry) {
1264 f2fs_put_page(old_dir_page, 0);
1265 }
1266 out_new:
1267 f2fs_put_page(new_page, 0);
1268 out_old:
1269 f2fs_put_page(old_page, 0);
1270 out:
1271 return err;
1272 }
1273
f2fs_rename2(struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry,unsigned int flags)1274 static int f2fs_rename2(struct inode *old_dir, struct dentry *old_dentry,
1275 struct inode *new_dir, struct dentry *new_dentry,
1276 unsigned int flags)
1277 {
1278 int err;
1279
1280 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
1281 return -EINVAL;
1282
1283 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1284 flags);
1285 if (err)
1286 return err;
1287
1288 if (flags & RENAME_EXCHANGE) {
1289 return f2fs_cross_rename(old_dir, old_dentry,
1290 new_dir, new_dentry);
1291 }
1292 /*
1293 * VFS has already handled the new dentry existence case,
1294 * here, we just deal with "RENAME_NOREPLACE" as regular rename.
1295 */
1296 return f2fs_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
1297 }
1298
f2fs_encrypted_get_link(struct dentry * dentry,struct inode * inode,struct delayed_call * done)1299 static const char *f2fs_encrypted_get_link(struct dentry *dentry,
1300 struct inode *inode,
1301 struct delayed_call *done)
1302 {
1303 struct page *page;
1304 const char *target;
1305
1306 if (!dentry)
1307 return ERR_PTR(-ECHILD);
1308
1309 page = read_mapping_page(inode->i_mapping, 0, NULL);
1310 if (IS_ERR(page))
1311 return ERR_CAST(page);
1312
1313 target = fscrypt_get_symlink(inode, page_address(page),
1314 inode->i_sb->s_blocksize, done);
1315 put_page(page);
1316 return target;
1317 }
1318
f2fs_encrypted_symlink_getattr(const struct path * path,struct kstat * stat,u32 request_mask,unsigned int query_flags)1319 static int f2fs_encrypted_symlink_getattr(const struct path *path,
1320 struct kstat *stat, u32 request_mask,
1321 unsigned int query_flags)
1322 {
1323 f2fs_getattr(path, stat, request_mask, query_flags);
1324
1325 return fscrypt_symlink_getattr(path, stat);
1326 }
1327
1328 const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
1329 .get_link = f2fs_encrypted_get_link,
1330 .getattr = f2fs_encrypted_symlink_getattr,
1331 .setattr = f2fs_setattr,
1332 .listxattr = f2fs_listxattr,
1333 };
1334
1335 const struct inode_operations f2fs_dir_inode_operations = {
1336 .create = f2fs_create,
1337 .lookup = f2fs_lookup,
1338 .link = f2fs_link,
1339 .unlink = f2fs_unlink,
1340 .symlink = f2fs_symlink,
1341 .mkdir = f2fs_mkdir,
1342 .rmdir = f2fs_rmdir,
1343 .mknod = f2fs_mknod,
1344 .rename = f2fs_rename2,
1345 .tmpfile = f2fs_tmpfile,
1346 .getattr = f2fs_getattr,
1347 .setattr = f2fs_setattr,
1348 .get_acl = f2fs_get_acl,
1349 .set_acl = f2fs_set_acl,
1350 .listxattr = f2fs_listxattr,
1351 .fiemap = f2fs_fiemap,
1352 };
1353
1354 const struct inode_operations f2fs_symlink_inode_operations = {
1355 .get_link = f2fs_get_link,
1356 .getattr = f2fs_getattr,
1357 .setattr = f2fs_setattr,
1358 .listxattr = f2fs_listxattr,
1359 };
1360
1361 const struct inode_operations f2fs_special_inode_operations = {
1362 .getattr = f2fs_getattr,
1363 .setattr = f2fs_setattr,
1364 .get_acl = f2fs_get_acl,
1365 .set_acl = f2fs_set_acl,
1366 .listxattr = f2fs_listxattr,
1367 };
1368