2 * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
4 * Trivial changes by Alan Cox to remove EHASHCOLLISION for compatibility
7 * Rights granted to Hans Reiser to redistribute under other terms providing
8 * he accepts all liability including but not limited to patent, fitness
9 * for purpose, and direct or indirect claims arising from failure to perform.
14 #include <linux/time.h>
15 #include <linux/bitops.h>
16 #include <linux/slab.h>
17 #include <linux/reiserfs_fs.h>
18 #include <linux/reiserfs_acl.h>
19 #include <linux/reiserfs_xattr.h>
20 #include <linux/quotaops.h>
22 #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
23 #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i);
25 // directory item contains array of entry headers. This performs
26 // binary search through that array
27 static int bin_search_in_dir_item(struct reiserfs_dir_entry *de, loff_t off)
29 struct item_head *ih = de->de_ih;
30 struct reiserfs_de_head *deh = de->de_deh;
31 int rbound, lbound, j;
34 rbound = I_ENTRY_COUNT(ih) - 1;
36 for (j = (rbound + lbound) / 2; lbound <= rbound;
37 j = (rbound + lbound) / 2) {
38 if (off < deh_offset(deh + j)) {
42 if (off > deh_offset(deh + j)) {
46 // this is not name found, but matched third key component
51 de->de_entry_num = lbound;
52 return NAME_NOT_FOUND;
55 // comment? maybe something like set de to point to what the path points to?
56 static inline void set_de_item_location(struct reiserfs_dir_entry *de,
57 struct treepath *path)
59 de->de_bh = get_last_bh(path);
60 de->de_ih = get_ih(path);
61 de->de_deh = B_I_DEH(de->de_bh, de->de_ih);
62 de->de_item_num = PATH_LAST_POSITION(path);
65 // de_bh, de_ih, de_deh (points to first element of array), de_item_num is set
66 inline void set_de_name_and_namelen(struct reiserfs_dir_entry *de)
68 struct reiserfs_de_head *deh = de->de_deh + de->de_entry_num;
70 BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih));
72 de->de_entrylen = entry_length(de->de_bh, de->de_ih, de->de_entry_num);
73 de->de_namelen = de->de_entrylen - (de_with_sd(deh) ? SD_SIZE : 0);
74 de->de_name = B_I_PITEM(de->de_bh, de->de_ih) + deh_location(deh);
75 if (de->de_name[de->de_namelen - 1] == 0)
76 de->de_namelen = strlen(de->de_name);
79 // what entry points to
80 static inline void set_de_object_key(struct reiserfs_dir_entry *de)
82 BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih));
83 de->de_dir_id = deh_dir_id(&(de->de_deh[de->de_entry_num]));
84 de->de_objectid = deh_objectid(&(de->de_deh[de->de_entry_num]));
87 static inline void store_de_entry_key(struct reiserfs_dir_entry *de)
89 struct reiserfs_de_head *deh = de->de_deh + de->de_entry_num;
91 BUG_ON(de->de_entry_num >= ih_entry_count(de->de_ih));
93 /* store key of the found entry */
94 de->de_entry_key.version = KEY_FORMAT_3_5;
95 de->de_entry_key.on_disk_key.k_dir_id =
96 le32_to_cpu(de->de_ih->ih_key.k_dir_id);
97 de->de_entry_key.on_disk_key.k_objectid =
98 le32_to_cpu(de->de_ih->ih_key.k_objectid);
99 set_cpu_key_k_offset(&(de->de_entry_key), deh_offset(deh));
100 set_cpu_key_k_type(&(de->de_entry_key), TYPE_DIRENTRY);
103 /* We assign a key to each directory item, and place multiple entries
104 in a single directory item. A directory item has a key equal to the
105 key of the first directory entry in it.
107 This function first calls search_by_key, then, if item whose first
108 entry matches is not found it looks for the entry inside directory
109 item found by search_by_key. Fills the path to the entry, and to the
110 entry position in the item
114 /* The function is NOT SCHEDULE-SAFE! */
115 int search_by_entry_key(struct super_block *sb, const struct cpu_key *key,
116 struct treepath *path, struct reiserfs_dir_entry *de)
120 retval = search_item(sb, key, path);
123 if (!PATH_LAST_POSITION(path)) {
124 reiserfs_error(sb, "vs-7000", "search_by_key "
125 "returned item position == 0");
129 PATH_LAST_POSITION(path)--;
139 reiserfs_error(sb, "vs-7002", "no path to here");
143 set_de_item_location(de, path);
145 #ifdef CONFIG_REISERFS_CHECK
146 if (!is_direntry_le_ih(de->de_ih) ||
147 COMP_SHORT_KEYS(&(de->de_ih->ih_key), key)) {
148 print_block(de->de_bh, 0, -1, -1);
149 reiserfs_panic(sb, "vs-7005", "found item %h is not directory "
150 "item or does not belong to the same directory "
151 "as key %K", de->de_ih, key);
153 #endif /* CONFIG_REISERFS_CHECK */
155 /* binary search in directory item by third componen t of the
156 key. sets de->de_entry_num of de */
157 retval = bin_search_in_dir_item(de, cpu_key_k_offset(key));
158 path->pos_in_item = de->de_entry_num;
159 if (retval != NAME_NOT_FOUND) {
160 // ugly, but rename needs de_bh, de_deh, de_name, de_namelen, de_objectid set
161 set_de_name_and_namelen(de);
162 set_de_object_key(de);
167 /* Keyed 32-bit hash function using TEA in a Davis-Meyer function */
169 /* The third component is hashed, and you can choose from more than
170 one hash function. Per directory hashes are not yet implemented
171 but are thought about. This function should be moved to hashes.c
172 Jedi, please do so. -Hans */
174 static __u32 get_third_component(struct super_block *s,
175 const char *name, int len)
179 if (!len || (len == 1 && name[0] == '.'))
181 if (len == 2 && name[0] == '.' && name[1] == '.')
182 return DOT_DOT_OFFSET;
184 res = REISERFS_SB(s)->s_hash_function(name, len);
186 // take bits from 7-th to 30-th including both bounds
187 res = GET_HASH_VALUE(res);
189 // needed to have no names before "." and ".." those have hash
190 // value == 0 and generation conters 1 and 2 accordingly
192 return res + MAX_GENERATION_NUMBER;
195 static int reiserfs_match(struct reiserfs_dir_entry *de,
196 const char *name, int namelen)
198 int retval = NAME_NOT_FOUND;
200 if ((namelen == de->de_namelen) &&
201 !memcmp(de->de_name, name, de->de_namelen))
203 (de_visible(de->de_deh + de->de_entry_num) ? NAME_FOUND :
204 NAME_FOUND_INVISIBLE);
209 /* de's de_bh, de_ih, de_deh, de_item_num, de_entry_num are set already */
211 /* used when hash collisions exist */
213 static int linear_search_in_dir_item(struct cpu_key *key,
214 struct reiserfs_dir_entry *de,
215 const char *name, int namelen)
217 struct reiserfs_de_head *deh = de->de_deh;
221 i = de->de_entry_num;
223 if (i == I_ENTRY_COUNT(de->de_ih) ||
224 GET_HASH_VALUE(deh_offset(deh + i)) !=
225 GET_HASH_VALUE(cpu_key_k_offset(key))) {
229 RFALSE(de->de_deh != B_I_DEH(de->de_bh, de->de_ih),
230 "vs-7010: array of entry headers not found");
234 for (; i >= 0; i--, deh--) {
235 if (GET_HASH_VALUE(deh_offset(deh)) !=
236 GET_HASH_VALUE(cpu_key_k_offset(key))) {
237 // hash value does not match, no need to check whole name
238 return NAME_NOT_FOUND;
241 /* mark, that this generation number is used */
242 if (de->de_gen_number_bit_string)
243 set_bit(GET_GENERATION_NUMBER(deh_offset(deh)),
244 de->de_gen_number_bit_string);
246 // calculate pointer to name and namelen
247 de->de_entry_num = i;
248 set_de_name_and_namelen(de);
251 reiserfs_match(de, name, namelen)) != NAME_NOT_FOUND) {
252 // de's de_name, de_namelen, de_recordlen are set. Fill the rest:
254 // key of pointed object
255 set_de_object_key(de);
257 store_de_entry_key(de);
259 // retval can be NAME_FOUND or NAME_FOUND_INVISIBLE
264 if (GET_GENERATION_NUMBER(le_ih_k_offset(de->de_ih)) == 0)
265 /* we have reached left most entry in the node. In common we
266 have to go to the left neighbor, but if generation counter
267 is 0 already, we know for sure, that there is no name with
268 the same hash value */
269 // FIXME: this work correctly only because hash value can not
270 // be 0. Btw, in case of Yura's hash it is probably possible,
272 return NAME_NOT_FOUND;
274 RFALSE(de->de_item_num,
275 "vs-7015: two diritems of the same directory in one node?");
277 return GOTO_PREVIOUS_ITEM;
280 // may return NAME_FOUND, NAME_FOUND_INVISIBLE, NAME_NOT_FOUND
281 // FIXME: should add something like IOERROR
282 static int reiserfs_find_entry(struct inode *dir, const char *name, int namelen,
283 struct treepath *path_to_entry,
284 struct reiserfs_dir_entry *de)
286 struct cpu_key key_to_search;
289 if (namelen > REISERFS_MAX_NAME(dir->i_sb->s_blocksize))
290 return NAME_NOT_FOUND;
292 /* we will search for this key in the tree */
293 make_cpu_key(&key_to_search, dir,
294 get_third_component(dir->i_sb, name, namelen),
299 search_by_entry_key(dir->i_sb, &key_to_search,
301 if (retval == IO_ERROR) {
302 reiserfs_error(dir->i_sb, "zam-7001", "io error");
306 /* compare names for all entries having given hash value */
308 linear_search_in_dir_item(&key_to_search, de, name,
310 if (retval != GOTO_PREVIOUS_ITEM) {
311 /* there is no need to scan directory anymore. Given entry found or does not exist */
312 path_to_entry->pos_in_item = de->de_entry_num;
316 /* there is left neighboring item of this directory and given entry can be there */
317 set_cpu_key_k_offset(&key_to_search,
318 le_ih_k_offset(de->de_ih) - 1);
319 pathrelse(path_to_entry);
324 static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
325 struct nameidata *nd)
329 struct inode *inode = NULL;
330 struct reiserfs_dir_entry de;
331 INITIALIZE_PATH(path_to_entry);
333 if (REISERFS_MAX_NAME(dir->i_sb->s_blocksize) < dentry->d_name.len)
334 return ERR_PTR(-ENAMETOOLONG);
337 * Might be called with or without the write lock, must be careful
338 * to not recursively hold it in case we want to release the lock
339 * before rescheduling.
341 lock_depth = reiserfs_write_lock_once(dir->i_sb);
343 de.de_gen_number_bit_string = NULL;
345 reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len,
346 &path_to_entry, &de);
347 pathrelse(&path_to_entry);
348 if (retval == NAME_FOUND) {
349 inode = reiserfs_iget(dir->i_sb,
350 (struct cpu_key *)&(de.de_dir_id));
351 if (!inode || IS_ERR(inode)) {
352 reiserfs_write_unlock_once(dir->i_sb, lock_depth);
353 return ERR_PTR(-EACCES);
356 /* Propagate the private flag so we know we're
357 * in the priv tree */
359 inode->i_flags |= S_PRIVATE;
361 reiserfs_write_unlock_once(dir->i_sb, lock_depth);
362 if (retval == IO_ERROR) {
363 return ERR_PTR(-EIO);
366 return d_splice_alias(inode, dentry);
370 ** looks up the dentry of the parent directory for child.
371 ** taken from ext2_get_parent
373 struct dentry *reiserfs_get_parent(struct dentry *child)
376 struct inode *inode = NULL;
377 struct reiserfs_dir_entry de;
378 INITIALIZE_PATH(path_to_entry);
379 struct inode *dir = child->d_inode;
381 if (dir->i_nlink == 0) {
382 return ERR_PTR(-ENOENT);
384 de.de_gen_number_bit_string = NULL;
386 reiserfs_write_lock(dir->i_sb);
387 retval = reiserfs_find_entry(dir, "..", 2, &path_to_entry, &de);
388 pathrelse(&path_to_entry);
389 if (retval != NAME_FOUND) {
390 reiserfs_write_unlock(dir->i_sb);
391 return ERR_PTR(-ENOENT);
393 inode = reiserfs_iget(dir->i_sb, (struct cpu_key *)&(de.de_dir_id));
394 reiserfs_write_unlock(dir->i_sb);
396 return d_obtain_alias(inode);
399 /* add entry to the directory (entry can be hidden).
401 insert definition of when hidden directories are used here -Hans
403 Does not mark dir inode dirty, do it after successesfull call to it */
405 static int reiserfs_add_entry(struct reiserfs_transaction_handle *th,
406 struct inode *dir, const char *name, int namelen,
407 struct inode *inode, int visible)
409 struct cpu_key entry_key;
410 struct reiserfs_de_head *deh;
411 INITIALIZE_PATH(path);
412 struct reiserfs_dir_entry de;
413 DECLARE_BITMAP(bit_string, MAX_GENERATION_NUMBER + 1);
415 char small_buf[32 + DEH_SIZE]; /* 48 bytes now and we avoid kmalloc
416 if we create file with short name */
418 int buflen, paste_size;
421 BUG_ON(!th->t_trans_id);
423 /* cannot allow items to be added into a busy deleted directory */
427 if (namelen > REISERFS_MAX_NAME(dir->i_sb->s_blocksize))
428 return -ENAMETOOLONG;
430 /* each entry has unique key. compose it */
431 make_cpu_key(&entry_key, dir,
432 get_third_component(dir->i_sb, name, namelen),
435 /* get memory for composing the entry */
436 buflen = DEH_SIZE + ROUND_UP(namelen);
437 if (buflen > sizeof(small_buf)) {
438 buffer = kmalloc(buflen, GFP_NOFS);
445 (get_inode_sd_version(dir) ==
446 STAT_DATA_V1) ? (DEH_SIZE + namelen) : buflen;
448 /* fill buffer : directory entry head, name[, dir objectid | , stat data | ,stat data, dir objectid ] */
449 deh = (struct reiserfs_de_head *)buffer;
450 deh->deh_location = 0; /* JDM Endian safe if 0 */
451 put_deh_offset(deh, cpu_key_k_offset(&entry_key));
452 deh->deh_state = 0; /* JDM Endian safe if 0 */
453 /* put key (ino analog) to de */
454 deh->deh_dir_id = INODE_PKEY(inode)->k_dir_id; /* safe: k_dir_id is le */
455 deh->deh_objectid = INODE_PKEY(inode)->k_objectid; /* safe: k_objectid is le */
458 memcpy((char *)(deh + 1), name, namelen);
459 /* padd by 0s to the 4 byte boundary */
460 padd_item((char *)(deh + 1), ROUND_UP(namelen), namelen);
462 /* entry is ready to be pasted into tree, set 'visibility' and 'stat data in entry' attributes */
463 mark_de_without_sd(deh);
464 visible ? mark_de_visible(deh) : mark_de_hidden(deh);
466 /* find the proper place for the new entry */
467 memset(bit_string, 0, sizeof(bit_string));
468 de.de_gen_number_bit_string = bit_string;
469 retval = reiserfs_find_entry(dir, name, namelen, &path, &de);
470 if (retval != NAME_NOT_FOUND) {
471 if (buffer != small_buf)
475 if (retval == IO_ERROR) {
479 if (retval != NAME_FOUND) {
480 reiserfs_error(dir->i_sb, "zam-7002",
481 "reiserfs_find_entry() returned "
482 "unexpected value (%d)", retval);
489 find_first_zero_bit(bit_string,
490 MAX_GENERATION_NUMBER + 1);
491 if (gen_number > MAX_GENERATION_NUMBER) {
492 /* there is no free generation number */
493 reiserfs_warning(dir->i_sb, "reiserfs-7010",
494 "Congratulations! we have got hash function "
496 if (buffer != small_buf)
501 /* adjust offset of directory enrty */
502 put_deh_offset(deh, SET_GENERATION_NUMBER(deh_offset(deh), gen_number));
503 set_cpu_key_k_offset(&entry_key, deh_offset(deh));
505 /* update max-hash-collisions counter in reiserfs_sb_info */
506 PROC_INFO_MAX(th->t_super, max_hash_collisions, gen_number);
508 if (gen_number != 0) { /* we need to re-search for the insertion point */
509 if (search_by_entry_key(dir->i_sb, &entry_key, &path, &de) !=
511 reiserfs_warning(dir->i_sb, "vs-7032",
512 "entry with this key (%K) already "
513 "exists", &entry_key);
515 if (buffer != small_buf)
522 /* perform the insertion of the entry that we have prepared */
524 reiserfs_paste_into_item(th, &path, &entry_key, dir, buffer,
526 if (buffer != small_buf)
529 reiserfs_check_path(&path);
533 dir->i_size += paste_size;
534 dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
535 if (!S_ISDIR(inode->i_mode) && visible)
536 // reiserfs_mkdir or reiserfs_rename will do that by itself
537 reiserfs_update_sd(th, dir);
539 reiserfs_check_path(&path);
543 /* quota utility function, call if you've had to abort after calling
544 ** new_inode_init, and have not called reiserfs_new_inode yet.
545 ** This should only be called on inodes that do not have stat data
546 ** inserted into the tree yet.
548 static int drop_new_inode(struct inode *inode)
551 make_bad_inode(inode);
552 inode->i_flags |= S_NOQUOTA;
557 /* utility function that does setup for reiserfs_new_inode.
558 ** dquot_initialize needs lots of credits so it's better to have it
559 ** outside of a transaction, so we had to pull some bits of
560 ** reiserfs_new_inode out into this func.
562 static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
564 /* Make inode invalid - just in case we are going to drop it before
565 * the initialization happens */
566 INODE_PKEY(inode)->k_objectid = 0;
567 /* the quota init calls have to know who to charge the quota to, so
568 ** we have to set uid and gid here
570 inode_init_owner(inode, dir, mode);
571 dquot_initialize(inode);
575 static int reiserfs_create(struct inode *dir, struct dentry *dentry, int mode,
576 struct nameidata *nd)
580 /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
582 JOURNAL_PER_BALANCE_CNT * 2 +
583 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
584 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
585 struct reiserfs_transaction_handle th;
586 struct reiserfs_security_handle security;
588 dquot_initialize(dir);
590 if (!(inode = new_inode(dir->i_sb))) {
593 new_inode_init(inode, dir, mode);
595 jbegin_count += reiserfs_cache_default_acl(dir);
596 retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
598 drop_new_inode(inode);
601 jbegin_count += retval;
602 reiserfs_write_lock(dir->i_sb);
604 retval = journal_begin(&th, dir->i_sb, jbegin_count);
606 drop_new_inode(inode);
611 reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry,
616 inode->i_op = &reiserfs_file_inode_operations;
617 inode->i_fop = &reiserfs_file_operations;
618 inode->i_mapping->a_ops = &reiserfs_address_space_operations;
621 reiserfs_add_entry(&th, dir, dentry->d_name.name,
622 dentry->d_name.len, inode, 1 /*visible */ );
626 reiserfs_update_sd(&th, inode);
627 err = journal_end(&th, dir->i_sb, jbegin_count);
630 unlock_new_inode(inode);
634 reiserfs_update_inode_transaction(inode);
635 reiserfs_update_inode_transaction(dir);
637 d_instantiate(dentry, inode);
638 unlock_new_inode(inode);
639 retval = journal_end(&th, dir->i_sb, jbegin_count);
642 reiserfs_write_unlock(dir->i_sb);
646 static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
651 struct reiserfs_transaction_handle th;
652 struct reiserfs_security_handle security;
653 /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
655 JOURNAL_PER_BALANCE_CNT * 3 +
656 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
657 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
659 if (!new_valid_dev(rdev))
662 dquot_initialize(dir);
664 if (!(inode = new_inode(dir->i_sb))) {
667 new_inode_init(inode, dir, mode);
669 jbegin_count += reiserfs_cache_default_acl(dir);
670 retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
672 drop_new_inode(inode);
675 jbegin_count += retval;
676 reiserfs_write_lock(dir->i_sb);
678 retval = journal_begin(&th, dir->i_sb, jbegin_count);
680 drop_new_inode(inode);
685 reiserfs_new_inode(&th, dir, mode, NULL, 0 /*i_size */ , dentry,
691 inode->i_op = &reiserfs_special_inode_operations;
692 init_special_inode(inode, inode->i_mode, rdev);
694 //FIXME: needed for block and char devices only
695 reiserfs_update_sd(&th, inode);
697 reiserfs_update_inode_transaction(inode);
698 reiserfs_update_inode_transaction(dir);
701 reiserfs_add_entry(&th, dir, dentry->d_name.name,
702 dentry->d_name.len, inode, 1 /*visible */ );
706 reiserfs_update_sd(&th, inode);
707 err = journal_end(&th, dir->i_sb, jbegin_count);
710 unlock_new_inode(inode);
715 d_instantiate(dentry, inode);
716 unlock_new_inode(inode);
717 retval = journal_end(&th, dir->i_sb, jbegin_count);
720 reiserfs_write_unlock(dir->i_sb);
724 static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
728 struct reiserfs_transaction_handle th;
729 struct reiserfs_security_handle security;
731 /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
733 JOURNAL_PER_BALANCE_CNT * 3 +
734 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb) +
735 REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
737 dquot_initialize(dir);
739 #ifdef DISPLACE_NEW_PACKING_LOCALITIES
740 /* set flag that new packing locality created and new blocks for the content * of that directory are not displaced yet */
741 REISERFS_I(dir)->new_packing_locality = 1;
743 mode = S_IFDIR | mode;
744 if (!(inode = new_inode(dir->i_sb))) {
747 new_inode_init(inode, dir, mode);
749 jbegin_count += reiserfs_cache_default_acl(dir);
750 retval = reiserfs_security_init(dir, inode, &dentry->d_name, &security);
752 drop_new_inode(inode);
755 jbegin_count += retval;
756 lock_depth = reiserfs_write_lock_once(dir->i_sb);
758 retval = journal_begin(&th, dir->i_sb, jbegin_count);
760 drop_new_inode(inode);
764 /* inc the link count now, so another writer doesn't overflow it while
765 ** we sleep later on.
767 INC_DIR_INODE_NLINK(dir)
769 retval = reiserfs_new_inode(&th, dir, mode, NULL /*symlink */ ,
770 old_format_only(dir->i_sb) ?
771 EMPTY_DIR_SIZE_V1 : EMPTY_DIR_SIZE,
772 dentry, inode, &security);
774 DEC_DIR_INODE_NLINK(dir)
778 reiserfs_update_inode_transaction(inode);
779 reiserfs_update_inode_transaction(dir);
781 inode->i_op = &reiserfs_dir_inode_operations;
782 inode->i_fop = &reiserfs_dir_operations;
784 // note, _this_ add_entry will not update dir's stat data
786 reiserfs_add_entry(&th, dir, dentry->d_name.name,
787 dentry->d_name.len, inode, 1 /*visible */ );
791 DEC_DIR_INODE_NLINK(dir);
792 reiserfs_update_sd(&th, inode);
793 err = journal_end(&th, dir->i_sb, jbegin_count);
796 unlock_new_inode(inode);
800 // the above add_entry did not update dir's stat data
801 reiserfs_update_sd(&th, dir);
803 d_instantiate(dentry, inode);
804 unlock_new_inode(inode);
805 retval = journal_end(&th, dir->i_sb, jbegin_count);
807 reiserfs_write_unlock_once(dir->i_sb, lock_depth);
811 static inline int reiserfs_empty_dir(struct inode *inode)
813 /* we can cheat because an old format dir cannot have
814 ** EMPTY_DIR_SIZE, and a new format dir cannot have
815 ** EMPTY_DIR_SIZE_V1. So, if the inode is either size,
816 ** regardless of disk format version, the directory is empty.
818 if (inode->i_size != EMPTY_DIR_SIZE &&
819 inode->i_size != EMPTY_DIR_SIZE_V1) {
825 static int reiserfs_rmdir(struct inode *dir, struct dentry *dentry)
829 struct reiserfs_transaction_handle th;
831 INITIALIZE_PATH(path);
832 struct reiserfs_dir_entry de;
834 dentry_unhash(dentry);
836 /* we will be doing 2 balancings and update 2 stat data, we change quotas
837 * of the owner of the directory and of the owner of the parent directory.
838 * The quota structure is possibly deleted only on last iput => outside
839 * of this transaction */
841 JOURNAL_PER_BALANCE_CNT * 2 + 2 +
842 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
844 dquot_initialize(dir);
846 reiserfs_write_lock(dir->i_sb);
847 retval = journal_begin(&th, dir->i_sb, jbegin_count);
851 de.de_gen_number_bit_string = NULL;
853 reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len,
854 &path, &de)) == NAME_NOT_FOUND) {
857 } else if (retval == IO_ERROR) {
862 inode = dentry->d_inode;
864 reiserfs_update_inode_transaction(inode);
865 reiserfs_update_inode_transaction(dir);
867 if (de.de_objectid != inode->i_ino) {
868 // FIXME: compare key of an object and a key found in the
873 if (!reiserfs_empty_dir(inode)) {
878 /* cut entry from dir directory */
879 retval = reiserfs_cut_from_item(&th, &path, &(de.de_entry_key), dir, NULL, /* page */
880 0 /*new file size - not used here */ );
884 if (inode->i_nlink != 2 && inode->i_nlink != 1)
885 reiserfs_error(inode->i_sb, "reiserfs-7040",
886 "empty directory has nlink != 2 (%d)",
890 inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
891 reiserfs_update_sd(&th, inode);
893 DEC_DIR_INODE_NLINK(dir)
894 dir->i_size -= (DEH_SIZE + de.de_entrylen);
895 reiserfs_update_sd(&th, dir);
897 /* prevent empty directory from getting lost */
898 add_save_link(&th, inode, 0 /* not truncate */ );
900 retval = journal_end(&th, dir->i_sb, jbegin_count);
901 reiserfs_check_path(&path);
903 reiserfs_write_unlock(dir->i_sb);
907 /* we must release path, because we did not call
908 reiserfs_cut_from_item, or reiserfs_cut_from_item does not
909 release path if operation was not complete */
911 err = journal_end(&th, dir->i_sb, jbegin_count);
912 reiserfs_write_unlock(dir->i_sb);
913 return err ? err : retval;
916 static int reiserfs_unlink(struct inode *dir, struct dentry *dentry)
920 struct reiserfs_dir_entry de;
921 INITIALIZE_PATH(path);
922 struct reiserfs_transaction_handle th;
924 unsigned long savelink;
927 dquot_initialize(dir);
929 inode = dentry->d_inode;
931 /* in this transaction we can be doing at max two balancings and update
932 * two stat datas, we change quotas of the owner of the directory and of
933 * the owner of the parent directory. The quota structure is possibly
934 * deleted only on iput => outside of this transaction */
936 JOURNAL_PER_BALANCE_CNT * 2 + 2 +
937 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
939 depth = reiserfs_write_lock_once(dir->i_sb);
940 retval = journal_begin(&th, dir->i_sb, jbegin_count);
944 de.de_gen_number_bit_string = NULL;
946 reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len,
947 &path, &de)) == NAME_NOT_FOUND) {
950 } else if (retval == IO_ERROR) {
955 reiserfs_update_inode_transaction(inode);
956 reiserfs_update_inode_transaction(dir);
958 if (de.de_objectid != inode->i_ino) {
959 // FIXME: compare key of an object and a key found in the
965 if (!inode->i_nlink) {
966 reiserfs_warning(inode->i_sb, "reiserfs-7042",
967 "deleting nonexistent file (%lu), %d",
968 inode->i_ino, inode->i_nlink);
975 * we schedule before doing the add_save_link call, save the link
976 * count so we don't race
978 savelink = inode->i_nlink;
981 reiserfs_cut_from_item(&th, &path, &(de.de_entry_key), dir, NULL,
987 inode->i_ctime = CURRENT_TIME_SEC;
988 reiserfs_update_sd(&th, inode);
990 dir->i_size -= (de.de_entrylen + DEH_SIZE);
991 dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
992 reiserfs_update_sd(&th, dir);
995 /* prevent file from getting lost */
996 add_save_link(&th, inode, 0 /* not truncate */ );
998 retval = journal_end(&th, dir->i_sb, jbegin_count);
999 reiserfs_check_path(&path);
1000 reiserfs_write_unlock_once(dir->i_sb, depth);
1005 err = journal_end(&th, dir->i_sb, jbegin_count);
1006 reiserfs_check_path(&path);
1010 reiserfs_write_unlock_once(dir->i_sb, depth);
1014 static int reiserfs_symlink(struct inode *parent_dir,
1015 struct dentry *dentry, const char *symname)
1018 struct inode *inode;
1021 struct reiserfs_transaction_handle th;
1022 struct reiserfs_security_handle security;
1023 int mode = S_IFLNK | S_IRWXUGO;
1024 /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
1026 JOURNAL_PER_BALANCE_CNT * 3 +
1027 2 * (REISERFS_QUOTA_INIT_BLOCKS(parent_dir->i_sb) +
1028 REISERFS_QUOTA_TRANS_BLOCKS(parent_dir->i_sb));
1030 dquot_initialize(parent_dir);
1032 if (!(inode = new_inode(parent_dir->i_sb))) {
1035 new_inode_init(inode, parent_dir, mode);
1037 retval = reiserfs_security_init(parent_dir, inode, &dentry->d_name,
1040 drop_new_inode(inode);
1043 jbegin_count += retval;
1045 reiserfs_write_lock(parent_dir->i_sb);
1046 item_len = ROUND_UP(strlen(symname));
1047 if (item_len > MAX_DIRECT_ITEM_LEN(parent_dir->i_sb->s_blocksize)) {
1048 retval = -ENAMETOOLONG;
1049 drop_new_inode(inode);
1053 name = kmalloc(item_len, GFP_NOFS);
1055 drop_new_inode(inode);
1059 memcpy(name, symname, strlen(symname));
1060 padd_item(name, item_len, strlen(symname));
1062 retval = journal_begin(&th, parent_dir->i_sb, jbegin_count);
1064 drop_new_inode(inode);
1070 reiserfs_new_inode(&th, parent_dir, mode, name, strlen(symname),
1071 dentry, inode, &security);
1073 if (retval) { /* reiserfs_new_inode iputs for us */
1077 reiserfs_update_inode_transaction(inode);
1078 reiserfs_update_inode_transaction(parent_dir);
1080 inode->i_op = &reiserfs_symlink_inode_operations;
1081 inode->i_mapping->a_ops = &reiserfs_address_space_operations;
1083 // must be sure this inode is written with this transaction
1085 //reiserfs_update_sd (&th, inode, READ_BLOCKS);
1087 retval = reiserfs_add_entry(&th, parent_dir, dentry->d_name.name,
1088 dentry->d_name.len, inode, 1 /*visible */ );
1092 reiserfs_update_sd(&th, inode);
1093 err = journal_end(&th, parent_dir->i_sb, jbegin_count);
1096 unlock_new_inode(inode);
1101 d_instantiate(dentry, inode);
1102 unlock_new_inode(inode);
1103 retval = journal_end(&th, parent_dir->i_sb, jbegin_count);
1105 reiserfs_write_unlock(parent_dir->i_sb);
1109 static int reiserfs_link(struct dentry *old_dentry, struct inode *dir,
1110 struct dentry *dentry)
1113 struct inode *inode = old_dentry->d_inode;
1114 struct reiserfs_transaction_handle th;
1115 /* We need blocks for transaction + update of quotas for the owners of the directory */
1117 JOURNAL_PER_BALANCE_CNT * 3 +
1118 2 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
1120 dquot_initialize(dir);
1122 reiserfs_write_lock(dir->i_sb);
1123 if (inode->i_nlink >= REISERFS_LINK_MAX) {
1124 //FIXME: sd_nlink is 32 bit for new files
1125 reiserfs_write_unlock(dir->i_sb);
1129 /* inc before scheduling so reiserfs_unlink knows we are here */
1132 retval = journal_begin(&th, dir->i_sb, jbegin_count);
1135 reiserfs_write_unlock(dir->i_sb);
1139 /* create new entry */
1141 reiserfs_add_entry(&th, dir, dentry->d_name.name,
1142 dentry->d_name.len, inode, 1 /*visible */ );
1144 reiserfs_update_inode_transaction(inode);
1145 reiserfs_update_inode_transaction(dir);
1150 err = journal_end(&th, dir->i_sb, jbegin_count);
1151 reiserfs_write_unlock(dir->i_sb);
1152 return err ? err : retval;
1155 inode->i_ctime = CURRENT_TIME_SEC;
1156 reiserfs_update_sd(&th, inode);
1159 d_instantiate(dentry, inode);
1160 retval = journal_end(&th, dir->i_sb, jbegin_count);
1161 reiserfs_write_unlock(dir->i_sb);
1165 /* de contains information pointing to an entry which */
1166 static int de_still_valid(const char *name, int len,
1167 struct reiserfs_dir_entry *de)
1169 struct reiserfs_dir_entry tmp = *de;
1171 // recalculate pointer to name and name length
1172 set_de_name_and_namelen(&tmp);
1173 // FIXME: could check more
1174 if (tmp.de_namelen != len || memcmp(name, de->de_name, len))
1179 static int entry_points_to_object(const char *name, int len,
1180 struct reiserfs_dir_entry *de,
1181 struct inode *inode)
1183 if (!de_still_valid(name, len, de))
1187 if (!de_visible(de->de_deh + de->de_entry_num))
1188 reiserfs_panic(inode->i_sb, "vs-7042",
1189 "entry must be visible");
1190 return (de->de_objectid == inode->i_ino) ? 1 : 0;
1193 /* this must be added hidden entry */
1194 if (de_visible(de->de_deh + de->de_entry_num))
1195 reiserfs_panic(NULL, "vs-7043", "entry must be visible");
1200 /* sets key of objectid the entry has to point to */
1201 static void set_ino_in_dir_entry(struct reiserfs_dir_entry *de,
1202 struct reiserfs_key *key)
1204 /* JDM These operations are endian safe - both are le */
1205 de->de_deh[de->de_entry_num].deh_dir_id = key->k_dir_id;
1206 de->de_deh[de->de_entry_num].deh_objectid = key->k_objectid;
1210 * process, that is going to call fix_nodes/do_balance must hold only
1211 * one path. If it holds 2 or more, it can get into endless waiting in
1212 * get_empty_nodes or its clones
1214 static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry,
1215 struct inode *new_dir, struct dentry *new_dentry)
1218 INITIALIZE_PATH(old_entry_path);
1219 INITIALIZE_PATH(new_entry_path);
1220 INITIALIZE_PATH(dot_dot_entry_path);
1221 struct item_head new_entry_ih, old_entry_ih, dot_dot_ih;
1222 struct reiserfs_dir_entry old_de, new_de, dot_dot_de;
1223 struct inode *old_inode, *new_dentry_inode;
1224 struct reiserfs_transaction_handle th;
1226 umode_t old_inode_mode;
1227 unsigned long savelink = 1;
1228 struct timespec ctime;
1230 if (new_dentry->d_inode && S_ISDIR(new_dentry->d_inode->i_mode))
1231 dentry_unhash(new_dentry);
1233 /* three balancings: (1) old name removal, (2) new name insertion
1234 and (3) maybe "save" link insertion
1235 stat data updates: (1) old directory,
1236 (2) new directory and (3) maybe old object stat data (when it is
1237 directory) and (4) maybe stat data of object to which new entry
1238 pointed initially and (5) maybe block containing ".." of
1240 quota updates: two parent directories */
1242 JOURNAL_PER_BALANCE_CNT * 3 + 5 +
1243 4 * REISERFS_QUOTA_TRANS_BLOCKS(old_dir->i_sb);
1245 dquot_initialize(old_dir);
1246 dquot_initialize(new_dir);
1248 old_inode = old_dentry->d_inode;
1249 new_dentry_inode = new_dentry->d_inode;
1251 // make sure, that oldname still exists and points to an object we
1252 // are going to rename
1253 old_de.de_gen_number_bit_string = NULL;
1254 reiserfs_write_lock(old_dir->i_sb);
1256 reiserfs_find_entry(old_dir, old_dentry->d_name.name,
1257 old_dentry->d_name.len, &old_entry_path,
1259 pathrelse(&old_entry_path);
1260 if (retval == IO_ERROR) {
1261 reiserfs_write_unlock(old_dir->i_sb);
1265 if (retval != NAME_FOUND || old_de.de_objectid != old_inode->i_ino) {
1266 reiserfs_write_unlock(old_dir->i_sb);
1270 old_inode_mode = old_inode->i_mode;
1271 if (S_ISDIR(old_inode_mode)) {
1272 // make sure, that directory being renamed has correct ".."
1273 // and that its new parent directory has not too many links
1276 if (new_dentry_inode) {
1277 if (!reiserfs_empty_dir(new_dentry_inode)) {
1278 reiserfs_write_unlock(old_dir->i_sb);
1283 /* directory is renamed, its parent directory will be changed,
1284 ** so find ".." entry
1286 dot_dot_de.de_gen_number_bit_string = NULL;
1288 reiserfs_find_entry(old_inode, "..", 2, &dot_dot_entry_path,
1290 pathrelse(&dot_dot_entry_path);
1291 if (retval != NAME_FOUND) {
1292 reiserfs_write_unlock(old_dir->i_sb);
1296 /* inode number of .. must equal old_dir->i_ino */
1297 if (dot_dot_de.de_objectid != old_dir->i_ino) {
1298 reiserfs_write_unlock(old_dir->i_sb);
1303 retval = journal_begin(&th, old_dir->i_sb, jbegin_count);
1305 reiserfs_write_unlock(old_dir->i_sb);
1309 /* add new entry (or find the existing one) */
1311 reiserfs_add_entry(&th, new_dir, new_dentry->d_name.name,
1312 new_dentry->d_name.len, old_inode, 0);
1313 if (retval == -EEXIST) {
1314 if (!new_dentry_inode) {
1315 reiserfs_panic(old_dir->i_sb, "vs-7050",
1316 "new entry is found, new inode == 0");
1318 } else if (retval) {
1319 int err = journal_end(&th, old_dir->i_sb, jbegin_count);
1320 reiserfs_write_unlock(old_dir->i_sb);
1321 return err ? err : retval;
1324 reiserfs_update_inode_transaction(old_dir);
1325 reiserfs_update_inode_transaction(new_dir);
1327 /* this makes it so an fsync on an open fd for the old name will
1328 ** commit the rename operation
1330 reiserfs_update_inode_transaction(old_inode);
1332 if (new_dentry_inode)
1333 reiserfs_update_inode_transaction(new_dentry_inode);
1336 // look for old name using corresponding entry key (found by reiserfs_find_entry)
1338 search_by_entry_key(new_dir->i_sb, &old_de.de_entry_key,
1340 &old_de)) != NAME_FOUND) {
1341 pathrelse(&old_entry_path);
1342 journal_end(&th, old_dir->i_sb, jbegin_count);
1343 reiserfs_write_unlock(old_dir->i_sb);
1347 copy_item_head(&old_entry_ih, get_ih(&old_entry_path));
1349 reiserfs_prepare_for_journal(old_inode->i_sb, old_de.de_bh, 1);
1351 // look for new name by reiserfs_find_entry
1352 new_de.de_gen_number_bit_string = NULL;
1354 reiserfs_find_entry(new_dir, new_dentry->d_name.name,
1355 new_dentry->d_name.len, &new_entry_path,
1357 // reiserfs_add_entry should not return IO_ERROR, because it is called with essentially same parameters from
1358 // reiserfs_add_entry above, and we'll catch any i/o errors before we get here.
1359 if (retval != NAME_FOUND_INVISIBLE && retval != NAME_FOUND) {
1360 pathrelse(&new_entry_path);
1361 pathrelse(&old_entry_path);
1362 journal_end(&th, old_dir->i_sb, jbegin_count);
1363 reiserfs_write_unlock(old_dir->i_sb);
1367 copy_item_head(&new_entry_ih, get_ih(&new_entry_path));
1369 reiserfs_prepare_for_journal(old_inode->i_sb, new_de.de_bh, 1);
1371 if (S_ISDIR(old_inode->i_mode)) {
1373 search_by_entry_key(new_dir->i_sb,
1374 &dot_dot_de.de_entry_key,
1375 &dot_dot_entry_path,
1376 &dot_dot_de)) != NAME_FOUND) {
1377 pathrelse(&dot_dot_entry_path);
1378 pathrelse(&new_entry_path);
1379 pathrelse(&old_entry_path);
1380 journal_end(&th, old_dir->i_sb, jbegin_count);
1381 reiserfs_write_unlock(old_dir->i_sb);
1384 copy_item_head(&dot_dot_ih,
1385 get_ih(&dot_dot_entry_path));
1386 // node containing ".." gets into transaction
1387 reiserfs_prepare_for_journal(old_inode->i_sb,
1388 dot_dot_de.de_bh, 1);
1390 /* we should check seals here, not do
1391 this stuff, yes? Then, having
1392 gathered everything into RAM we
1393 should lock the buffers, yes? -Hans */
1394 /* probably. our rename needs to hold more
1395 ** than one path at once. The seals would
1396 ** have to be written to deal with multi-path
1399 /* sanity checking before doing the rename - avoid races many
1400 ** of the above checks could have scheduled. We have to be
1401 ** sure our items haven't been shifted by another process.
1403 if (item_moved(&new_entry_ih, &new_entry_path) ||
1404 !entry_points_to_object(new_dentry->d_name.name,
1405 new_dentry->d_name.len,
1406 &new_de, new_dentry_inode) ||
1407 item_moved(&old_entry_ih, &old_entry_path) ||
1408 !entry_points_to_object(old_dentry->d_name.name,
1409 old_dentry->d_name.len,
1410 &old_de, old_inode)) {
1411 reiserfs_restore_prepared_buffer(old_inode->i_sb,
1413 reiserfs_restore_prepared_buffer(old_inode->i_sb,
1415 if (S_ISDIR(old_inode_mode))
1416 reiserfs_restore_prepared_buffer(old_inode->
1422 if (S_ISDIR(old_inode_mode)) {
1423 if (item_moved(&dot_dot_ih, &dot_dot_entry_path) ||
1424 !entry_points_to_object("..", 2, &dot_dot_de,
1426 reiserfs_restore_prepared_buffer(old_inode->
1429 reiserfs_restore_prepared_buffer(old_inode->
1432 reiserfs_restore_prepared_buffer(old_inode->
1440 RFALSE(S_ISDIR(old_inode_mode) &&
1441 !buffer_journal_prepared(dot_dot_de.de_bh), "");
1446 /* ok, all the changes can be done in one fell swoop when we
1447 have claimed all the buffers needed. */
1449 mark_de_visible(new_de.de_deh + new_de.de_entry_num);
1450 set_ino_in_dir_entry(&new_de, INODE_PKEY(old_inode));
1451 journal_mark_dirty(&th, old_dir->i_sb, new_de.de_bh);
1453 mark_de_hidden(old_de.de_deh + old_de.de_entry_num);
1454 journal_mark_dirty(&th, old_dir->i_sb, old_de.de_bh);
1455 ctime = CURRENT_TIME_SEC;
1456 old_dir->i_ctime = old_dir->i_mtime = ctime;
1457 new_dir->i_ctime = new_dir->i_mtime = ctime;
1458 /* thanks to Alex Adriaanse <alex_a@caltech.edu> for patch which adds ctime update of
1460 old_inode->i_ctime = ctime;
1462 if (new_dentry_inode) {
1463 // adjust link number of the victim
1464 if (S_ISDIR(new_dentry_inode->i_mode)) {
1465 clear_nlink(new_dentry_inode);
1467 drop_nlink(new_dentry_inode);
1469 new_dentry_inode->i_ctime = ctime;
1470 savelink = new_dentry_inode->i_nlink;
1473 if (S_ISDIR(old_inode_mode)) {
1474 /* adjust ".." of renamed directory */
1475 set_ino_in_dir_entry(&dot_dot_de, INODE_PKEY(new_dir));
1476 journal_mark_dirty(&th, new_dir->i_sb, dot_dot_de.de_bh);
1478 if (!new_dentry_inode)
1479 /* there (in new_dir) was no directory, so it got new link
1480 (".." of renamed directory) */
1481 INC_DIR_INODE_NLINK(new_dir);
1483 /* old directory lost one link - ".. " of renamed directory */
1484 DEC_DIR_INODE_NLINK(old_dir);
1486 // looks like in 2.3.99pre3 brelse is atomic. so we can use pathrelse
1487 pathrelse(&new_entry_path);
1488 pathrelse(&dot_dot_entry_path);
1490 // FIXME: this reiserfs_cut_from_item's return value may screw up
1491 // anybody, but it will panic if will not be able to find the
1492 // entry. This needs one more clean up
1493 if (reiserfs_cut_from_item
1494 (&th, &old_entry_path, &(old_de.de_entry_key), old_dir, NULL,
1496 reiserfs_error(old_dir->i_sb, "vs-7060",
1497 "couldn't not cut old name. Fsck later?");
1499 old_dir->i_size -= DEH_SIZE + old_de.de_entrylen;
1501 reiserfs_update_sd(&th, old_dir);
1502 reiserfs_update_sd(&th, new_dir);
1503 reiserfs_update_sd(&th, old_inode);
1505 if (new_dentry_inode) {
1507 add_save_link(&th, new_dentry_inode,
1508 0 /* not truncate */ );
1509 reiserfs_update_sd(&th, new_dentry_inode);
1512 retval = journal_end(&th, old_dir->i_sb, jbegin_count);
1513 reiserfs_write_unlock(old_dir->i_sb);
1518 * directories can handle most operations...
1520 const struct inode_operations reiserfs_dir_inode_operations = {
1521 //&reiserfs_dir_operations, /* default_file_ops */
1522 .create = reiserfs_create,
1523 .lookup = reiserfs_lookup,
1524 .link = reiserfs_link,
1525 .unlink = reiserfs_unlink,
1526 .symlink = reiserfs_symlink,
1527 .mkdir = reiserfs_mkdir,
1528 .rmdir = reiserfs_rmdir,
1529 .mknod = reiserfs_mknod,
1530 .rename = reiserfs_rename,
1531 .setattr = reiserfs_setattr,
1532 .setxattr = reiserfs_setxattr,
1533 .getxattr = reiserfs_getxattr,
1534 .listxattr = reiserfs_listxattr,
1535 .removexattr = reiserfs_removexattr,
1536 .permission = reiserfs_permission,
1540 * symlink operations.. same as page_symlink_inode_operations, with xattr
1543 const struct inode_operations reiserfs_symlink_inode_operations = {
1544 .readlink = generic_readlink,
1545 .follow_link = page_follow_link_light,
1546 .put_link = page_put_link,
1547 .setattr = reiserfs_setattr,
1548 .setxattr = reiserfs_setxattr,
1549 .getxattr = reiserfs_getxattr,
1550 .listxattr = reiserfs_listxattr,
1551 .removexattr = reiserfs_removexattr,
1552 .permission = reiserfs_permission,
1557 * special file operations.. just xattr/acl stuff
1559 const struct inode_operations reiserfs_special_inode_operations = {
1560 .setattr = reiserfs_setattr,
1561 .setxattr = reiserfs_setxattr,
1562 .getxattr = reiserfs_getxattr,
1563 .listxattr = reiserfs_listxattr,
1564 .removexattr = reiserfs_removexattr,
1565 .permission = reiserfs_permission,