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
is_extension_exist(const unsigned char * s,const char * sub,bool tmp_ext,bool tmp_dot)25 static inline bool is_extension_exist(const unsigned char *s, const char *sub,
26 bool tmp_ext, bool tmp_dot)
27 {
28 size_t slen = strlen(s);
29 size_t sublen = strlen(sub);
30 int i;
31
32 if (sublen == 1 && *sub == '*')
33 return true;
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 false;
41
42 if (!tmp_ext) {
43 /* file has no temp extension */
44 if (s[slen - sublen - 1] != '.')
45 return false;
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 if (!tmp_dot)
54 return true;
55 if (i == slen - sublen - 1 || s[i + 1 + sublen] == '.')
56 return true;
57 }
58 }
59
60 return false;
61 }
62
is_temperature_extension(const unsigned char * s,const char * sub)63 static inline bool is_temperature_extension(const unsigned char *s, const char *sub)
64 {
65 return is_extension_exist(s, sub, true, false);
66 }
67
is_compress_extension(const unsigned char * s,const char * sub)68 static inline bool is_compress_extension(const unsigned char *s, const char *sub)
69 {
70 return is_extension_exist(s, sub, true, true);
71 }
72
f2fs_update_extension_list(struct f2fs_sb_info * sbi,const char * name,bool hot,bool set)73 int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
74 bool hot, bool set)
75 {
76 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
77 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
78 int hot_count = sbi->raw_super->hot_ext_count;
79 int total_count = cold_count + hot_count;
80 int start, count;
81 int i;
82
83 if (set) {
84 if (total_count == F2FS_MAX_EXTENSION)
85 return -EINVAL;
86 } else {
87 if (!hot && !cold_count)
88 return -EINVAL;
89 if (hot && !hot_count)
90 return -EINVAL;
91 }
92
93 if (hot) {
94 start = cold_count;
95 count = total_count;
96 } else {
97 start = 0;
98 count = cold_count;
99 }
100
101 for (i = start; i < count; i++) {
102 if (strcmp(name, extlist[i]))
103 continue;
104
105 if (set)
106 return -EINVAL;
107
108 memcpy(extlist[i], extlist[i + 1],
109 F2FS_EXTENSION_LEN * (total_count - i - 1));
110 memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN);
111 if (hot)
112 sbi->raw_super->hot_ext_count = hot_count - 1;
113 else
114 sbi->raw_super->extension_count =
115 cpu_to_le32(cold_count - 1);
116 return 0;
117 }
118
119 if (!set)
120 return -EINVAL;
121
122 if (hot) {
123 memcpy(extlist[count], name, strlen(name));
124 sbi->raw_super->hot_ext_count = hot_count + 1;
125 } else {
126 char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN];
127
128 memcpy(buf, &extlist[cold_count],
129 F2FS_EXTENSION_LEN * hot_count);
130 memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN);
131 memcpy(extlist[cold_count], name, strlen(name));
132 memcpy(&extlist[cold_count + 1], buf,
133 F2FS_EXTENSION_LEN * hot_count);
134 sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1);
135 }
136 return 0;
137 }
138
set_compress_new_inode(struct f2fs_sb_info * sbi,struct inode * dir,struct inode * inode,const unsigned char * name)139 static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
140 struct inode *inode, const unsigned char *name)
141 {
142 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
143 unsigned char (*noext)[F2FS_EXTENSION_LEN] =
144 F2FS_OPTION(sbi).noextensions;
145 unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions;
146 unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
147 unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
148 int i, cold_count, hot_count;
149
150 if (!f2fs_sb_has_compression(sbi))
151 return;
152
153 if (S_ISDIR(inode->i_mode))
154 goto inherit_comp;
155
156 /* This name comes only from normal files. */
157 if (!name)
158 return;
159
160 /* Don't compress hot files. */
161 f2fs_down_read(&sbi->sb_lock);
162 cold_count = le32_to_cpu(sbi->raw_super->extension_count);
163 hot_count = sbi->raw_super->hot_ext_count;
164 for (i = cold_count; i < cold_count + hot_count; i++)
165 if (is_temperature_extension(name, extlist[i]))
166 break;
167 f2fs_up_read(&sbi->sb_lock);
168 if (i < (cold_count + hot_count))
169 return;
170
171 /* Don't compress unallowed extension. */
172 for (i = 0; i < noext_cnt; i++)
173 if (is_compress_extension(name, noext[i]))
174 return;
175
176 /* Compress wanting extension. */
177 for (i = 0; i < ext_cnt; i++) {
178 if (is_compress_extension(name, ext[i])) {
179 set_compress_context(inode);
180 return;
181 }
182 }
183 inherit_comp:
184 /* Inherit the {no-}compression flag in directory */
185 if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) {
186 F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL;
187 f2fs_mark_inode_dirty_sync(inode, true);
188 } else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) {
189 set_compress_context(inode);
190 }
191 }
192
193 /*
194 * Set file's temperature for hot/cold data separation
195 */
set_file_temperature(struct f2fs_sb_info * sbi,struct inode * inode,const unsigned char * name)196 static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
197 const unsigned char *name)
198 {
199 __u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list;
200 int i, cold_count, hot_count;
201
202 f2fs_down_read(&sbi->sb_lock);
203 cold_count = le32_to_cpu(sbi->raw_super->extension_count);
204 hot_count = sbi->raw_super->hot_ext_count;
205 for (i = 0; i < cold_count + hot_count; i++)
206 if (is_temperature_extension(name, extlist[i]))
207 break;
208 f2fs_up_read(&sbi->sb_lock);
209
210 if (i == cold_count + hot_count)
211 return;
212
213 if (i < cold_count)
214 file_set_cold(inode);
215 else
216 file_set_hot(inode);
217 }
218
f2fs_new_inode(struct mnt_idmap * idmap,struct inode * dir,umode_t mode,const char * name)219 static struct inode *f2fs_new_inode(struct mnt_idmap *idmap,
220 struct inode *dir, umode_t mode,
221 const char *name)
222 {
223 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
224 nid_t ino;
225 struct inode *inode;
226 bool nid_free = false;
227 bool encrypt = false;
228 int xattr_size = 0;
229 int err;
230
231 inode = new_inode(dir->i_sb);
232 if (!inode)
233 return ERR_PTR(-ENOMEM);
234
235 if (!f2fs_alloc_nid(sbi, &ino)) {
236 err = -ENOSPC;
237 goto fail;
238 }
239
240 nid_free = true;
241
242 inode_init_owner(idmap, inode, dir, mode);
243
244 inode->i_ino = ino;
245 inode->i_blocks = 0;
246 inode->i_mtime = inode->i_atime = inode_set_ctime_current(inode);
247 F2FS_I(inode)->i_crtime = inode->i_mtime;
248 inode->i_generation = get_random_u32();
249
250 if (S_ISDIR(inode->i_mode))
251 F2FS_I(inode)->i_current_depth = 1;
252
253 err = insert_inode_locked(inode);
254 if (err) {
255 err = -EINVAL;
256 goto fail;
257 }
258
259 if (f2fs_sb_has_project_quota(sbi) &&
260 (F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL))
261 F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid;
262 else
263 F2FS_I(inode)->i_projid = make_kprojid(&init_user_ns,
264 F2FS_DEF_PROJID);
265
266 err = fscrypt_prepare_new_inode(dir, inode, &encrypt);
267 if (err)
268 goto fail_drop;
269
270 err = f2fs_dquot_initialize(inode);
271 if (err)
272 goto fail_drop;
273
274 set_inode_flag(inode, FI_NEW_INODE);
275
276 if (encrypt)
277 f2fs_set_encrypted_inode(inode);
278
279 if (f2fs_sb_has_extra_attr(sbi)) {
280 set_inode_flag(inode, FI_EXTRA_ATTR);
281 F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE;
282 }
283
284 if (test_opt(sbi, INLINE_XATTR))
285 set_inode_flag(inode, FI_INLINE_XATTR);
286
287 if (f2fs_may_inline_dentry(inode))
288 set_inode_flag(inode, FI_INLINE_DENTRY);
289
290 if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
291 f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode));
292 if (f2fs_has_inline_xattr(inode))
293 xattr_size = F2FS_OPTION(sbi).inline_xattr_size;
294 /* Otherwise, will be 0 */
295 } else if (f2fs_has_inline_xattr(inode) ||
296 f2fs_has_inline_dentry(inode)) {
297 xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
298 }
299 F2FS_I(inode)->i_inline_xattr_size = xattr_size;
300
301 F2FS_I(inode)->i_flags =
302 f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED);
303
304 if (S_ISDIR(inode->i_mode))
305 F2FS_I(inode)->i_flags |= F2FS_INDEX_FL;
306
307 if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL)
308 set_inode_flag(inode, FI_PROJ_INHERIT);
309
310 /* Check compression first. */
311 set_compress_new_inode(sbi, dir, inode, name);
312
313 /* Should enable inline_data after compression set */
314 if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
315 set_inode_flag(inode, FI_INLINE_DATA);
316
317 if (name && !test_opt(sbi, DISABLE_EXT_IDENTIFY))
318 set_file_temperature(sbi, inode, name);
319
320 stat_inc_inline_xattr(inode);
321 stat_inc_inline_inode(inode);
322 stat_inc_inline_dir(inode);
323
324 f2fs_set_inode_flags(inode);
325
326 f2fs_init_extent_tree(inode);
327
328 trace_f2fs_new_inode(inode, 0);
329 return inode;
330
331 fail:
332 trace_f2fs_new_inode(inode, err);
333 make_bad_inode(inode);
334 if (nid_free)
335 set_inode_flag(inode, FI_FREE_NID);
336 iput(inode);
337 return ERR_PTR(err);
338 fail_drop:
339 trace_f2fs_new_inode(inode, err);
340 dquot_drop(inode);
341 inode->i_flags |= S_NOQUOTA;
342 if (nid_free)
343 set_inode_flag(inode, FI_FREE_NID);
344 clear_nlink(inode);
345 unlock_new_inode(inode);
346 iput(inode);
347 return ERR_PTR(err);
348 }
349
f2fs_create(struct mnt_idmap * idmap,struct inode * dir,struct dentry * dentry,umode_t mode,bool excl)350 static int f2fs_create(struct mnt_idmap *idmap, struct inode *dir,
351 struct dentry *dentry, umode_t mode, bool excl)
352 {
353 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
354 struct inode *inode;
355 nid_t ino = 0;
356 int err;
357
358 if (unlikely(f2fs_cp_error(sbi)))
359 return -EIO;
360 if (!f2fs_is_checkpoint_ready(sbi))
361 return -ENOSPC;
362
363 err = f2fs_dquot_initialize(dir);
364 if (err)
365 return err;
366
367 inode = f2fs_new_inode(idmap, dir, mode, dentry->d_name.name);
368 if (IS_ERR(inode))
369 return PTR_ERR(inode);
370
371 inode->i_op = &f2fs_file_inode_operations;
372 inode->i_fop = &f2fs_file_operations;
373 inode->i_mapping->a_ops = &f2fs_dblock_aops;
374 ino = inode->i_ino;
375
376 f2fs_lock_op(sbi);
377 err = f2fs_add_link(dentry, inode);
378 if (err)
379 goto out;
380 f2fs_unlock_op(sbi);
381
382 f2fs_alloc_nid_done(sbi, ino);
383
384 d_instantiate_new(dentry, inode);
385
386 if (IS_DIRSYNC(dir))
387 f2fs_sync_fs(sbi->sb, 1);
388
389 f2fs_balance_fs(sbi, true);
390 return 0;
391 out:
392 f2fs_handle_failed_inode(inode);
393 return err;
394 }
395
f2fs_link(struct dentry * old_dentry,struct inode * dir,struct dentry * dentry)396 static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
397 struct dentry *dentry)
398 {
399 struct inode *inode = d_inode(old_dentry);
400 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
401 int err;
402
403 if (unlikely(f2fs_cp_error(sbi)))
404 return -EIO;
405 if (!f2fs_is_checkpoint_ready(sbi))
406 return -ENOSPC;
407
408 err = fscrypt_prepare_link(old_dentry, dir, dentry);
409 if (err)
410 return err;
411
412 if (is_inode_flag_set(dir, FI_PROJ_INHERIT) &&
413 (!projid_eq(F2FS_I(dir)->i_projid,
414 F2FS_I(inode)->i_projid)))
415 return -EXDEV;
416
417 err = f2fs_dquot_initialize(dir);
418 if (err)
419 return err;
420
421 f2fs_balance_fs(sbi, true);
422
423 inode_set_ctime_current(inode);
424 ihold(inode);
425
426 set_inode_flag(inode, FI_INC_LINK);
427 f2fs_lock_op(sbi);
428 err = f2fs_add_link(dentry, inode);
429 if (err)
430 goto out;
431 f2fs_unlock_op(sbi);
432
433 d_instantiate(dentry, inode);
434
435 if (IS_DIRSYNC(dir))
436 f2fs_sync_fs(sbi->sb, 1);
437 return 0;
438 out:
439 clear_inode_flag(inode, FI_INC_LINK);
440 iput(inode);
441 f2fs_unlock_op(sbi);
442 return err;
443 }
444
f2fs_get_parent(struct dentry * child)445 struct dentry *f2fs_get_parent(struct dentry *child)
446 {
447 struct page *page;
448 unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page);
449
450 if (!ino) {
451 if (IS_ERR(page))
452 return ERR_CAST(page);
453 return ERR_PTR(-ENOENT);
454 }
455 return d_obtain_alias(f2fs_iget(child->d_sb, ino));
456 }
457
f2fs_lookup(struct inode * dir,struct dentry * dentry,unsigned int flags)458 static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
459 unsigned int flags)
460 {
461 struct inode *inode = NULL;
462 struct f2fs_dir_entry *de;
463 struct page *page;
464 struct dentry *new;
465 nid_t ino = -1;
466 int err = 0;
467 struct f2fs_filename fname;
468
469 trace_f2fs_lookup_start(dir, dentry, flags);
470
471 if (dentry->d_name.len > F2FS_NAME_LEN) {
472 err = -ENAMETOOLONG;
473 goto out;
474 }
475
476 err = f2fs_prepare_lookup(dir, dentry, &fname);
477 generic_set_encrypted_ci_d_ops(dentry);
478 if (err == -ENOENT)
479 goto out_splice;
480 if (err)
481 goto out;
482 de = __f2fs_find_entry(dir, &fname, &page);
483 f2fs_free_filename(&fname);
484
485 if (!de) {
486 if (IS_ERR(page)) {
487 err = PTR_ERR(page);
488 goto out;
489 }
490 err = -ENOENT;
491 goto out_splice;
492 }
493
494 ino = le32_to_cpu(de->ino);
495 f2fs_put_page(page, 0);
496
497 inode = f2fs_iget(dir->i_sb, ino);
498 if (IS_ERR(inode)) {
499 err = PTR_ERR(inode);
500 goto out;
501 }
502
503 if (IS_ENCRYPTED(dir) &&
504 (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) &&
505 !fscrypt_has_permitted_context(dir, inode)) {
506 f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu",
507 dir->i_ino, inode->i_ino);
508 err = -EPERM;
509 goto out_iput;
510 }
511 out_splice:
512 #if IS_ENABLED(CONFIG_UNICODE)
513 if (!inode && IS_CASEFOLDED(dir)) {
514 /* Eventually we want to call d_add_ci(dentry, NULL)
515 * for negative dentries in the encoding case as
516 * well. For now, prevent the negative dentry
517 * from being cached.
518 */
519 trace_f2fs_lookup_end(dir, dentry, ino, err);
520 return NULL;
521 }
522 #endif
523 new = d_splice_alias(inode, dentry);
524 trace_f2fs_lookup_end(dir, !IS_ERR_OR_NULL(new) ? new : dentry,
525 ino, IS_ERR(new) ? PTR_ERR(new) : err);
526 return new;
527 out_iput:
528 iput(inode);
529 out:
530 trace_f2fs_lookup_end(dir, dentry, ino, err);
531 return ERR_PTR(err);
532 }
533
f2fs_unlink(struct inode * dir,struct dentry * dentry)534 static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
535 {
536 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
537 struct inode *inode = d_inode(dentry);
538 struct f2fs_dir_entry *de;
539 struct page *page;
540 int err;
541
542 trace_f2fs_unlink_enter(dir, dentry);
543
544 if (unlikely(f2fs_cp_error(sbi))) {
545 err = -EIO;
546 goto fail;
547 }
548
549 err = f2fs_dquot_initialize(dir);
550 if (err)
551 goto fail;
552 err = f2fs_dquot_initialize(inode);
553 if (err)
554 goto fail;
555
556 de = f2fs_find_entry(dir, &dentry->d_name, &page);
557 if (!de) {
558 if (IS_ERR(page))
559 err = PTR_ERR(page);
560 goto fail;
561 }
562
563 if (unlikely(inode->i_nlink == 0)) {
564 f2fs_warn(F2FS_I_SB(inode), "%s: inode (ino=%lx) has zero i_nlink",
565 __func__, inode->i_ino);
566 err = -EFSCORRUPTED;
567 set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK);
568 f2fs_put_page(page, 0);
569 goto fail;
570 }
571
572 f2fs_balance_fs(sbi, true);
573
574 f2fs_lock_op(sbi);
575 err = f2fs_acquire_orphan_inode(sbi);
576 if (err) {
577 f2fs_unlock_op(sbi);
578 f2fs_put_page(page, 0);
579 goto fail;
580 }
581 f2fs_delete_entry(de, page, dir, inode);
582 f2fs_unlock_op(sbi);
583
584 #if IS_ENABLED(CONFIG_UNICODE)
585 /* VFS negative dentries are incompatible with Encoding and
586 * Case-insensitiveness. Eventually we'll want avoid
587 * invalidating the dentries here, alongside with returning the
588 * negative dentries at f2fs_lookup(), when it is better
589 * supported by the VFS for the CI case.
590 */
591 if (IS_CASEFOLDED(dir))
592 d_invalidate(dentry);
593 #endif
594 if (IS_DIRSYNC(dir))
595 f2fs_sync_fs(sbi->sb, 1);
596 fail:
597 trace_f2fs_unlink_exit(inode, err);
598 return err;
599 }
600
f2fs_get_link(struct dentry * dentry,struct inode * inode,struct delayed_call * done)601 static const char *f2fs_get_link(struct dentry *dentry,
602 struct inode *inode,
603 struct delayed_call *done)
604 {
605 const char *link = page_get_link(dentry, inode, done);
606
607 if (!IS_ERR(link) && !*link) {
608 /* this is broken symlink case */
609 do_delayed_call(done);
610 clear_delayed_call(done);
611 link = ERR_PTR(-ENOENT);
612 }
613 return link;
614 }
615
f2fs_symlink(struct mnt_idmap * idmap,struct inode * dir,struct dentry * dentry,const char * symname)616 static int f2fs_symlink(struct mnt_idmap *idmap, struct inode *dir,
617 struct dentry *dentry, const char *symname)
618 {
619 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
620 struct inode *inode;
621 size_t len = strlen(symname);
622 struct fscrypt_str disk_link;
623 int err;
624
625 if (unlikely(f2fs_cp_error(sbi)))
626 return -EIO;
627 if (!f2fs_is_checkpoint_ready(sbi))
628 return -ENOSPC;
629
630 err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize,
631 &disk_link);
632 if (err)
633 return err;
634
635 err = f2fs_dquot_initialize(dir);
636 if (err)
637 return err;
638
639 inode = f2fs_new_inode(idmap, dir, S_IFLNK | S_IRWXUGO, NULL);
640 if (IS_ERR(inode))
641 return PTR_ERR(inode);
642
643 if (IS_ENCRYPTED(inode))
644 inode->i_op = &f2fs_encrypted_symlink_inode_operations;
645 else
646 inode->i_op = &f2fs_symlink_inode_operations;
647 inode_nohighmem(inode);
648 inode->i_mapping->a_ops = &f2fs_dblock_aops;
649
650 f2fs_lock_op(sbi);
651 err = f2fs_add_link(dentry, inode);
652 if (err)
653 goto out_f2fs_handle_failed_inode;
654 f2fs_unlock_op(sbi);
655 f2fs_alloc_nid_done(sbi, inode->i_ino);
656
657 err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link);
658 if (err)
659 goto err_out;
660
661 err = page_symlink(inode, disk_link.name, disk_link.len);
662
663 err_out:
664 d_instantiate_new(dentry, inode);
665
666 /*
667 * Let's flush symlink data in order to avoid broken symlink as much as
668 * possible. Nevertheless, fsyncing is the best way, but there is no
669 * way to get a file descriptor in order to flush that.
670 *
671 * Note that, it needs to do dir->fsync to make this recoverable.
672 * If the symlink path is stored into inline_data, there is no
673 * performance regression.
674 */
675 if (!err) {
676 filemap_write_and_wait_range(inode->i_mapping, 0,
677 disk_link.len - 1);
678
679 if (IS_DIRSYNC(dir))
680 f2fs_sync_fs(sbi->sb, 1);
681 } else {
682 f2fs_unlink(dir, dentry);
683 }
684
685 f2fs_balance_fs(sbi, true);
686 goto out_free_encrypted_link;
687
688 out_f2fs_handle_failed_inode:
689 f2fs_handle_failed_inode(inode);
690 out_free_encrypted_link:
691 if (disk_link.name != (unsigned char *)symname)
692 kfree(disk_link.name);
693 return err;
694 }
695
f2fs_mkdir(struct mnt_idmap * idmap,struct inode * dir,struct dentry * dentry,umode_t mode)696 static int f2fs_mkdir(struct mnt_idmap *idmap, struct inode *dir,
697 struct dentry *dentry, umode_t mode)
698 {
699 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
700 struct inode *inode;
701 int err;
702
703 if (unlikely(f2fs_cp_error(sbi)))
704 return -EIO;
705
706 err = f2fs_dquot_initialize(dir);
707 if (err)
708 return err;
709
710 inode = f2fs_new_inode(idmap, dir, S_IFDIR | mode, NULL);
711 if (IS_ERR(inode))
712 return PTR_ERR(inode);
713
714 inode->i_op = &f2fs_dir_inode_operations;
715 inode->i_fop = &f2fs_dir_operations;
716 inode->i_mapping->a_ops = &f2fs_dblock_aops;
717 mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
718
719 set_inode_flag(inode, FI_INC_LINK);
720 f2fs_lock_op(sbi);
721 err = f2fs_add_link(dentry, inode);
722 if (err)
723 goto out_fail;
724 f2fs_unlock_op(sbi);
725
726 f2fs_alloc_nid_done(sbi, inode->i_ino);
727
728 d_instantiate_new(dentry, inode);
729
730 if (IS_DIRSYNC(dir))
731 f2fs_sync_fs(sbi->sb, 1);
732
733 f2fs_balance_fs(sbi, true);
734 return 0;
735
736 out_fail:
737 clear_inode_flag(inode, FI_INC_LINK);
738 f2fs_handle_failed_inode(inode);
739 return err;
740 }
741
f2fs_rmdir(struct inode * dir,struct dentry * dentry)742 static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
743 {
744 struct inode *inode = d_inode(dentry);
745
746 if (f2fs_empty_dir(inode))
747 return f2fs_unlink(dir, dentry);
748 return -ENOTEMPTY;
749 }
750
f2fs_mknod(struct mnt_idmap * idmap,struct inode * dir,struct dentry * dentry,umode_t mode,dev_t rdev)751 static int f2fs_mknod(struct mnt_idmap *idmap, struct inode *dir,
752 struct dentry *dentry, umode_t mode, dev_t rdev)
753 {
754 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
755 struct inode *inode;
756 int err = 0;
757
758 if (unlikely(f2fs_cp_error(sbi)))
759 return -EIO;
760 if (!f2fs_is_checkpoint_ready(sbi))
761 return -ENOSPC;
762
763 err = f2fs_dquot_initialize(dir);
764 if (err)
765 return err;
766
767 inode = f2fs_new_inode(idmap, dir, mode, NULL);
768 if (IS_ERR(inode))
769 return PTR_ERR(inode);
770
771 init_special_inode(inode, inode->i_mode, rdev);
772 inode->i_op = &f2fs_special_inode_operations;
773
774 f2fs_lock_op(sbi);
775 err = f2fs_add_link(dentry, inode);
776 if (err)
777 goto out;
778 f2fs_unlock_op(sbi);
779
780 f2fs_alloc_nid_done(sbi, inode->i_ino);
781
782 d_instantiate_new(dentry, inode);
783
784 if (IS_DIRSYNC(dir))
785 f2fs_sync_fs(sbi->sb, 1);
786
787 f2fs_balance_fs(sbi, true);
788 return 0;
789 out:
790 f2fs_handle_failed_inode(inode);
791 return err;
792 }
793
__f2fs_tmpfile(struct mnt_idmap * idmap,struct inode * dir,struct file * file,umode_t mode,bool is_whiteout,struct inode ** new_inode,struct f2fs_filename * fname)794 static int __f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
795 struct file *file, umode_t mode, bool is_whiteout,
796 struct inode **new_inode, struct f2fs_filename *fname)
797 {
798 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
799 struct inode *inode;
800 int err;
801
802 err = f2fs_dquot_initialize(dir);
803 if (err)
804 return err;
805
806 inode = f2fs_new_inode(idmap, dir, mode, NULL);
807 if (IS_ERR(inode))
808 return PTR_ERR(inode);
809
810 if (is_whiteout) {
811 init_special_inode(inode, inode->i_mode, WHITEOUT_DEV);
812 inode->i_op = &f2fs_special_inode_operations;
813 } else {
814 inode->i_op = &f2fs_file_inode_operations;
815 inode->i_fop = &f2fs_file_operations;
816 inode->i_mapping->a_ops = &f2fs_dblock_aops;
817 }
818
819 f2fs_lock_op(sbi);
820 err = f2fs_acquire_orphan_inode(sbi);
821 if (err)
822 goto out;
823
824 err = f2fs_do_tmpfile(inode, dir, fname);
825 if (err)
826 goto release_out;
827
828 /*
829 * add this non-linked tmpfile to orphan list, in this way we could
830 * remove all unused data of tmpfile after abnormal power-off.
831 */
832 f2fs_add_orphan_inode(inode);
833 f2fs_alloc_nid_done(sbi, inode->i_ino);
834
835 if (is_whiteout) {
836 f2fs_i_links_write(inode, false);
837
838 spin_lock(&inode->i_lock);
839 inode->i_state |= I_LINKABLE;
840 spin_unlock(&inode->i_lock);
841 } else {
842 if (file)
843 d_tmpfile(file, inode);
844 else
845 f2fs_i_links_write(inode, false);
846 }
847 /* link_count was changed by d_tmpfile as well. */
848 f2fs_unlock_op(sbi);
849 unlock_new_inode(inode);
850
851 if (new_inode)
852 *new_inode = inode;
853
854 f2fs_balance_fs(sbi, true);
855 return 0;
856
857 release_out:
858 f2fs_release_orphan_inode(sbi);
859 out:
860 f2fs_handle_failed_inode(inode);
861 return err;
862 }
863
f2fs_tmpfile(struct mnt_idmap * idmap,struct inode * dir,struct file * file,umode_t mode)864 static int f2fs_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
865 struct file *file, umode_t mode)
866 {
867 struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
868 int err;
869
870 if (unlikely(f2fs_cp_error(sbi)))
871 return -EIO;
872 if (!f2fs_is_checkpoint_ready(sbi))
873 return -ENOSPC;
874
875 err = __f2fs_tmpfile(idmap, dir, file, mode, false, NULL, NULL);
876
877 return finish_open_simple(file, err);
878 }
879
f2fs_create_whiteout(struct mnt_idmap * idmap,struct inode * dir,struct inode ** whiteout,struct f2fs_filename * fname)880 static int f2fs_create_whiteout(struct mnt_idmap *idmap,
881 struct inode *dir, struct inode **whiteout,
882 struct f2fs_filename *fname)
883 {
884 return __f2fs_tmpfile(idmap, dir, NULL, S_IFCHR | WHITEOUT_MODE,
885 true, whiteout, fname);
886 }
887
f2fs_get_tmpfile(struct mnt_idmap * idmap,struct inode * dir,struct inode ** new_inode)888 int f2fs_get_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
889 struct inode **new_inode)
890 {
891 return __f2fs_tmpfile(idmap, dir, NULL, S_IFREG,
892 false, new_inode, NULL);
893 }
894
f2fs_rename(struct mnt_idmap * idmap,struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry,unsigned int flags)895 static int f2fs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
896 struct dentry *old_dentry, struct inode *new_dir,
897 struct dentry *new_dentry, unsigned int flags)
898 {
899 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
900 struct inode *old_inode = d_inode(old_dentry);
901 struct inode *new_inode = d_inode(new_dentry);
902 struct inode *whiteout = NULL;
903 struct page *old_dir_page = NULL;
904 struct page *old_page, *new_page = NULL;
905 struct f2fs_dir_entry *old_dir_entry = NULL;
906 struct f2fs_dir_entry *old_entry;
907 struct f2fs_dir_entry *new_entry;
908 int err;
909
910 if (unlikely(f2fs_cp_error(sbi)))
911 return -EIO;
912 if (!f2fs_is_checkpoint_ready(sbi))
913 return -ENOSPC;
914
915 if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
916 (!projid_eq(F2FS_I(new_dir)->i_projid,
917 F2FS_I(old_inode)->i_projid)))
918 return -EXDEV;
919
920 /*
921 * If new_inode is null, the below renaming flow will
922 * add a link in old_dir which can convert inline_dir.
923 * After then, if we failed to get the entry due to other
924 * reasons like ENOMEM, we had to remove the new entry.
925 * Instead of adding such the error handling routine, let's
926 * simply convert first here.
927 */
928 if (old_dir == new_dir && !new_inode) {
929 err = f2fs_try_convert_inline_dir(old_dir, new_dentry);
930 if (err)
931 return err;
932 }
933
934 if (flags & RENAME_WHITEOUT) {
935 struct f2fs_filename fname;
936
937 err = f2fs_setup_filename(old_dir, &old_dentry->d_name,
938 0, &fname);
939 if (err)
940 return err;
941
942 err = f2fs_create_whiteout(idmap, old_dir, &whiteout, &fname);
943 if (err)
944 return err;
945 }
946
947 err = f2fs_dquot_initialize(old_dir);
948 if (err)
949 goto out;
950
951 err = f2fs_dquot_initialize(new_dir);
952 if (err)
953 goto out;
954
955 if (new_inode) {
956 err = f2fs_dquot_initialize(new_inode);
957 if (err)
958 goto out;
959 }
960
961 err = -ENOENT;
962 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
963 if (!old_entry) {
964 if (IS_ERR(old_page))
965 err = PTR_ERR(old_page);
966 goto out;
967 }
968
969 if (S_ISDIR(old_inode->i_mode)) {
970 old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page);
971 if (!old_dir_entry) {
972 if (IS_ERR(old_dir_page))
973 err = PTR_ERR(old_dir_page);
974 goto out_old;
975 }
976 }
977
978 if (new_inode) {
979
980 err = -ENOTEMPTY;
981 if (old_dir_entry && !f2fs_empty_dir(new_inode))
982 goto out_dir;
983
984 err = -ENOENT;
985 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name,
986 &new_page);
987 if (!new_entry) {
988 if (IS_ERR(new_page))
989 err = PTR_ERR(new_page);
990 goto out_dir;
991 }
992
993 f2fs_balance_fs(sbi, true);
994
995 f2fs_lock_op(sbi);
996
997 err = f2fs_acquire_orphan_inode(sbi);
998 if (err)
999 goto put_out_dir;
1000
1001 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1002 new_page = NULL;
1003
1004 inode_set_ctime_current(new_inode);
1005 f2fs_down_write(&F2FS_I(new_inode)->i_sem);
1006 if (old_dir_entry)
1007 f2fs_i_links_write(new_inode, false);
1008 f2fs_i_links_write(new_inode, false);
1009 f2fs_up_write(&F2FS_I(new_inode)->i_sem);
1010
1011 if (!new_inode->i_nlink)
1012 f2fs_add_orphan_inode(new_inode);
1013 else
1014 f2fs_release_orphan_inode(sbi);
1015 } else {
1016 f2fs_balance_fs(sbi, true);
1017
1018 f2fs_lock_op(sbi);
1019
1020 err = f2fs_add_link(new_dentry, old_inode);
1021 if (err) {
1022 f2fs_unlock_op(sbi);
1023 goto out_dir;
1024 }
1025
1026 if (old_dir_entry)
1027 f2fs_i_links_write(new_dir, true);
1028 }
1029
1030 f2fs_down_write(&F2FS_I(old_inode)->i_sem);
1031 if (!old_dir_entry || whiteout)
1032 file_lost_pino(old_inode);
1033 else
1034 /* adjust dir's i_pino to pass fsck check */
1035 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1036 f2fs_up_write(&F2FS_I(old_inode)->i_sem);
1037
1038 inode_set_ctime_current(old_inode);
1039 f2fs_mark_inode_dirty_sync(old_inode, false);
1040
1041 f2fs_delete_entry(old_entry, old_page, old_dir, NULL);
1042 old_page = NULL;
1043
1044 if (whiteout) {
1045 set_inode_flag(whiteout, FI_INC_LINK);
1046 err = f2fs_add_link(old_dentry, whiteout);
1047 if (err)
1048 goto put_out_dir;
1049
1050 spin_lock(&whiteout->i_lock);
1051 whiteout->i_state &= ~I_LINKABLE;
1052 spin_unlock(&whiteout->i_lock);
1053
1054 iput(whiteout);
1055 }
1056
1057 if (old_dir_entry) {
1058 if (old_dir != new_dir)
1059 f2fs_set_link(old_inode, old_dir_entry,
1060 old_dir_page, new_dir);
1061 else
1062 f2fs_put_page(old_dir_page, 0);
1063 f2fs_i_links_write(old_dir, false);
1064 }
1065 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1066 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1067 if (S_ISDIR(old_inode->i_mode))
1068 f2fs_add_ino_entry(sbi, old_inode->i_ino,
1069 TRANS_DIR_INO);
1070 }
1071
1072 f2fs_unlock_op(sbi);
1073
1074 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1075 f2fs_sync_fs(sbi->sb, 1);
1076
1077 f2fs_update_time(sbi, REQ_TIME);
1078 return 0;
1079
1080 put_out_dir:
1081 f2fs_unlock_op(sbi);
1082 f2fs_put_page(new_page, 0);
1083 out_dir:
1084 if (old_dir_entry)
1085 f2fs_put_page(old_dir_page, 0);
1086 out_old:
1087 f2fs_put_page(old_page, 0);
1088 out:
1089 iput(whiteout);
1090 return err;
1091 }
1092
f2fs_cross_rename(struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry)1093 static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
1094 struct inode *new_dir, struct dentry *new_dentry)
1095 {
1096 struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir);
1097 struct inode *old_inode = d_inode(old_dentry);
1098 struct inode *new_inode = d_inode(new_dentry);
1099 struct page *old_dir_page, *new_dir_page;
1100 struct page *old_page, *new_page;
1101 struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL;
1102 struct f2fs_dir_entry *old_entry, *new_entry;
1103 int old_nlink = 0, new_nlink = 0;
1104 int err;
1105
1106 if (unlikely(f2fs_cp_error(sbi)))
1107 return -EIO;
1108 if (!f2fs_is_checkpoint_ready(sbi))
1109 return -ENOSPC;
1110
1111 if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) &&
1112 !projid_eq(F2FS_I(new_dir)->i_projid,
1113 F2FS_I(old_inode)->i_projid)) ||
1114 (is_inode_flag_set(old_dir, FI_PROJ_INHERIT) &&
1115 !projid_eq(F2FS_I(old_dir)->i_projid,
1116 F2FS_I(new_inode)->i_projid)))
1117 return -EXDEV;
1118
1119 err = f2fs_dquot_initialize(old_dir);
1120 if (err)
1121 goto out;
1122
1123 err = f2fs_dquot_initialize(new_dir);
1124 if (err)
1125 goto out;
1126
1127 err = -ENOENT;
1128 old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1129 if (!old_entry) {
1130 if (IS_ERR(old_page))
1131 err = PTR_ERR(old_page);
1132 goto out;
1133 }
1134
1135 new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1136 if (!new_entry) {
1137 if (IS_ERR(new_page))
1138 err = PTR_ERR(new_page);
1139 goto out_old;
1140 }
1141
1142 /* prepare for updating ".." directory entry info later */
1143 if (old_dir != new_dir) {
1144 if (S_ISDIR(old_inode->i_mode)) {
1145 old_dir_entry = f2fs_parent_dir(old_inode,
1146 &old_dir_page);
1147 if (!old_dir_entry) {
1148 if (IS_ERR(old_dir_page))
1149 err = PTR_ERR(old_dir_page);
1150 goto out_new;
1151 }
1152 }
1153
1154 if (S_ISDIR(new_inode->i_mode)) {
1155 new_dir_entry = f2fs_parent_dir(new_inode,
1156 &new_dir_page);
1157 if (!new_dir_entry) {
1158 if (IS_ERR(new_dir_page))
1159 err = PTR_ERR(new_dir_page);
1160 goto out_old_dir;
1161 }
1162 }
1163 }
1164
1165 /*
1166 * If cross rename between file and directory those are not
1167 * in the same directory, we will inc nlink of file's parent
1168 * later, so we should check upper boundary of its nlink.
1169 */
1170 if ((!old_dir_entry || !new_dir_entry) &&
1171 old_dir_entry != new_dir_entry) {
1172 old_nlink = old_dir_entry ? -1 : 1;
1173 new_nlink = -old_nlink;
1174 err = -EMLINK;
1175 if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) ||
1176 (new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX))
1177 goto out_new_dir;
1178 }
1179
1180 f2fs_balance_fs(sbi, true);
1181
1182 f2fs_lock_op(sbi);
1183
1184 /* update ".." directory entry info of old dentry */
1185 if (old_dir_entry)
1186 f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir);
1187
1188 /* update ".." directory entry info of new dentry */
1189 if (new_dir_entry)
1190 f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir);
1191
1192 /* update directory entry info of old dir inode */
1193 f2fs_set_link(old_dir, old_entry, old_page, new_inode);
1194
1195 f2fs_down_write(&F2FS_I(old_inode)->i_sem);
1196 if (!old_dir_entry)
1197 file_lost_pino(old_inode);
1198 else
1199 /* adjust dir's i_pino to pass fsck check */
1200 f2fs_i_pino_write(old_inode, new_dir->i_ino);
1201 f2fs_up_write(&F2FS_I(old_inode)->i_sem);
1202
1203 inode_set_ctime_current(old_dir);
1204 if (old_nlink) {
1205 f2fs_down_write(&F2FS_I(old_dir)->i_sem);
1206 f2fs_i_links_write(old_dir, old_nlink > 0);
1207 f2fs_up_write(&F2FS_I(old_dir)->i_sem);
1208 }
1209 f2fs_mark_inode_dirty_sync(old_dir, false);
1210
1211 /* update directory entry info of new dir inode */
1212 f2fs_set_link(new_dir, new_entry, new_page, old_inode);
1213
1214 f2fs_down_write(&F2FS_I(new_inode)->i_sem);
1215 if (!new_dir_entry)
1216 file_lost_pino(new_inode);
1217 else
1218 /* adjust dir's i_pino to pass fsck check */
1219 f2fs_i_pino_write(new_inode, old_dir->i_ino);
1220 f2fs_up_write(&F2FS_I(new_inode)->i_sem);
1221
1222 inode_set_ctime_current(new_dir);
1223 if (new_nlink) {
1224 f2fs_down_write(&F2FS_I(new_dir)->i_sem);
1225 f2fs_i_links_write(new_dir, new_nlink > 0);
1226 f2fs_up_write(&F2FS_I(new_dir)->i_sem);
1227 }
1228 f2fs_mark_inode_dirty_sync(new_dir, false);
1229
1230 if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) {
1231 f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO);
1232 f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO);
1233 }
1234
1235 f2fs_unlock_op(sbi);
1236
1237 if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
1238 f2fs_sync_fs(sbi->sb, 1);
1239
1240 f2fs_update_time(sbi, REQ_TIME);
1241 return 0;
1242 out_new_dir:
1243 if (new_dir_entry) {
1244 f2fs_put_page(new_dir_page, 0);
1245 }
1246 out_old_dir:
1247 if (old_dir_entry) {
1248 f2fs_put_page(old_dir_page, 0);
1249 }
1250 out_new:
1251 f2fs_put_page(new_page, 0);
1252 out_old:
1253 f2fs_put_page(old_page, 0);
1254 out:
1255 return err;
1256 }
1257
f2fs_rename2(struct mnt_idmap * idmap,struct inode * old_dir,struct dentry * old_dentry,struct inode * new_dir,struct dentry * new_dentry,unsigned int flags)1258 static int f2fs_rename2(struct mnt_idmap *idmap,
1259 struct inode *old_dir, struct dentry *old_dentry,
1260 struct inode *new_dir, struct dentry *new_dentry,
1261 unsigned int flags)
1262 {
1263 int err;
1264
1265 if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
1266 return -EINVAL;
1267
1268 err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
1269 flags);
1270 if (err)
1271 return err;
1272
1273 if (flags & RENAME_EXCHANGE) {
1274 return f2fs_cross_rename(old_dir, old_dentry,
1275 new_dir, new_dentry);
1276 }
1277 /*
1278 * VFS has already handled the new dentry existence case,
1279 * here, we just deal with "RENAME_NOREPLACE" as regular rename.
1280 */
1281 return f2fs_rename(idmap, old_dir, old_dentry,
1282 new_dir, new_dentry, flags);
1283 }
1284
f2fs_encrypted_get_link(struct dentry * dentry,struct inode * inode,struct delayed_call * done)1285 static const char *f2fs_encrypted_get_link(struct dentry *dentry,
1286 struct inode *inode,
1287 struct delayed_call *done)
1288 {
1289 struct page *page;
1290 const char *target;
1291
1292 if (!dentry)
1293 return ERR_PTR(-ECHILD);
1294
1295 page = read_mapping_page(inode->i_mapping, 0, NULL);
1296 if (IS_ERR(page))
1297 return ERR_CAST(page);
1298
1299 target = fscrypt_get_symlink(inode, page_address(page),
1300 inode->i_sb->s_blocksize, done);
1301 put_page(page);
1302 return target;
1303 }
1304
f2fs_encrypted_symlink_getattr(struct mnt_idmap * idmap,const struct path * path,struct kstat * stat,u32 request_mask,unsigned int query_flags)1305 static int f2fs_encrypted_symlink_getattr(struct mnt_idmap *idmap,
1306 const struct path *path,
1307 struct kstat *stat, u32 request_mask,
1308 unsigned int query_flags)
1309 {
1310 f2fs_getattr(idmap, path, stat, request_mask, query_flags);
1311
1312 return fscrypt_symlink_getattr(path, stat);
1313 }
1314
1315 const struct inode_operations f2fs_encrypted_symlink_inode_operations = {
1316 .get_link = f2fs_encrypted_get_link,
1317 .getattr = f2fs_encrypted_symlink_getattr,
1318 .setattr = f2fs_setattr,
1319 .listxattr = f2fs_listxattr,
1320 };
1321
1322 const struct inode_operations f2fs_dir_inode_operations = {
1323 .create = f2fs_create,
1324 .lookup = f2fs_lookup,
1325 .link = f2fs_link,
1326 .unlink = f2fs_unlink,
1327 .symlink = f2fs_symlink,
1328 .mkdir = f2fs_mkdir,
1329 .rmdir = f2fs_rmdir,
1330 .mknod = f2fs_mknod,
1331 .rename = f2fs_rename2,
1332 .tmpfile = f2fs_tmpfile,
1333 .getattr = f2fs_getattr,
1334 .setattr = f2fs_setattr,
1335 .get_inode_acl = f2fs_get_acl,
1336 .set_acl = f2fs_set_acl,
1337 .listxattr = f2fs_listxattr,
1338 .fiemap = f2fs_fiemap,
1339 .fileattr_get = f2fs_fileattr_get,
1340 .fileattr_set = f2fs_fileattr_set,
1341 };
1342
1343 const struct inode_operations f2fs_symlink_inode_operations = {
1344 .get_link = f2fs_get_link,
1345 .getattr = f2fs_getattr,
1346 .setattr = f2fs_setattr,
1347 .listxattr = f2fs_listxattr,
1348 };
1349
1350 const struct inode_operations f2fs_special_inode_operations = {
1351 .getattr = f2fs_getattr,
1352 .setattr = f2fs_setattr,
1353 .get_inode_acl = f2fs_get_acl,
1354 .set_acl = f2fs_set_acl,
1355 .listxattr = f2fs_listxattr,
1356 };
1357