1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
6 * Create and rename file, directory, symlinks
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
10 * Portions of this code from linux/fs/ext3/dir.c
12 * Copyright (C) 1992, 1993, 1994, 1995
13 * Remy Card (card@masi.ibp.fr)
14 * Laboratoire MASI - Institut Blaise pascal
15 * Universite Pierre et Marie Curie (Paris VI)
19 * linux/fs/minix/dir.c
21 * Copyright (C) 1991, 1992 Linux Torvalds
23 * This program is free software; you can redistribute it and/or
24 * modify it under the terms of the GNU General Public
25 * License as published by the Free Software Foundation; either
26 * version 2 of the License, or (at your option) any later version.
28 * This program is distributed in the hope that it will be useful,
29 * but WITHOUT ANY WARRANTY; without even the implied warranty of
30 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
31 * General Public License for more details.
33 * You should have received a copy of the GNU General Public
34 * License along with this program; if not, write to the
35 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
36 * Boston, MA 021110-1307, USA.
40 #include <linux/types.h>
41 #include <linux/slab.h>
42 #include <linux/highmem.h>
43 #include <linux/quotaops.h>
45 #include <cluster/masklog.h>
53 #include "extent_map.h"
65 #include "ocfs2_trace.h"
67 #include "buffer_head_io.h"
69 static int ocfs2_mknod_locked(struct ocfs2_super *osb,
73 struct buffer_head **new_fe_bh,
74 struct buffer_head *parent_fe_bh,
76 struct ocfs2_alloc_context *inode_ac);
78 static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
79 struct inode **ret_orphan_dir,
82 struct ocfs2_dir_lookup_result *lookup,
85 static int ocfs2_orphan_add(struct ocfs2_super *osb,
88 struct buffer_head *fe_bh,
90 struct ocfs2_dir_lookup_result *lookup,
91 struct inode *orphan_dir_inode,
94 static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
99 static int ocfs2_double_lock(struct ocfs2_super *osb,
100 struct buffer_head **bh1,
101 struct inode *inode1,
102 struct buffer_head **bh2,
103 struct inode *inode2,
106 static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2);
107 /* An orphan dir name is an 8 byte value, printed as a hex string */
108 #define OCFS2_ORPHAN_NAMELEN ((int)(2 * sizeof(u64)))
110 static struct dentry *ocfs2_lookup(struct inode *dir, struct dentry *dentry,
115 struct inode *inode = NULL;
117 struct ocfs2_inode_info *oi;
119 trace_ocfs2_lookup(dir, dentry, dentry->d_name.len,
121 (unsigned long long)OCFS2_I(dir)->ip_blkno, 0);
123 if (dentry->d_name.len > OCFS2_MAX_FILENAME_LEN) {
124 ret = ERR_PTR(-ENAMETOOLONG);
128 status = ocfs2_inode_lock_nested(dir, NULL, 0, OI_LS_PARENT);
130 if (status != -ENOENT)
132 ret = ERR_PTR(status);
136 status = ocfs2_lookup_ino_from_name(dir, dentry->d_name.name,
137 dentry->d_name.len, &blkno);
141 inode = ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0);
143 ret = ERR_PTR(-EACCES);
148 /* Clear any orphaned state... If we were able to look up the
149 * inode from a directory, it certainly can't be orphaned. We
150 * might have the bad state from a node which intended to
151 * orphan this inode but crashed before it could commit the
153 spin_lock(&oi->ip_lock);
154 oi->ip_flags &= ~OCFS2_INODE_MAYBE_ORPHANED;
155 spin_unlock(&oi->ip_lock);
158 ret = d_splice_alias(inode, dentry);
162 * If d_splice_alias() finds a DCACHE_DISCONNECTED
163 * dentry, it will d_move() it on top of ourse. The
164 * return value will indicate this however, so in
165 * those cases, we switch them around for the locking
168 * NOTE: This dentry already has ->d_op set from
169 * ocfs2_get_parent() and ocfs2_get_dentry()
171 if (!IS_ERR_OR_NULL(ret))
174 status = ocfs2_dentry_attach_lock(dentry, inode,
175 OCFS2_I(dir)->ip_blkno);
178 ret = ERR_PTR(status);
182 ocfs2_dentry_attach_gen(dentry);
185 /* Don't drop the cluster lock until *after* the d_add --
186 * unlink on another node will message us to remove that
187 * dentry under this lock so otherwise we can race this with
188 * the downconvert thread and have a stale dentry. */
189 ocfs2_inode_unlock(dir, 0);
193 trace_ocfs2_lookup_ret(ret);
198 static struct inode *ocfs2_get_init_inode(struct inode *dir, umode_t mode)
203 inode = new_inode(dir->i_sb);
205 mlog(ML_ERROR, "new_inode failed!\n");
206 return ERR_PTR(-ENOMEM);
209 /* populate as many fields early on as possible - many of
210 * these are used by the support functions here and in
214 inode_init_owner(inode, dir, mode);
215 status = dquot_initialize(inode);
217 return ERR_PTR(status);
222 static void ocfs2_cleanup_add_entry_failure(struct ocfs2_super *osb,
223 struct dentry *dentry, struct inode *inode)
225 struct ocfs2_dentry_lock *dl = dentry->d_fsdata;
227 ocfs2_simple_drop_lockres(osb, &dl->dl_lockres);
228 ocfs2_lock_res_free(&dl->dl_lockres);
229 BUG_ON(dl->dl_count != 1);
230 spin_lock(&dentry_attach_lock);
231 dentry->d_fsdata = NULL;
232 spin_unlock(&dentry_attach_lock);
237 static int ocfs2_mknod(struct inode *dir,
238 struct dentry *dentry,
243 struct buffer_head *parent_fe_bh = NULL;
244 handle_t *handle = NULL;
245 struct ocfs2_super *osb;
246 struct ocfs2_dinode *dirfe;
247 struct buffer_head *new_fe_bh = NULL;
248 struct inode *inode = NULL;
249 struct ocfs2_alloc_context *inode_ac = NULL;
250 struct ocfs2_alloc_context *data_ac = NULL;
251 struct ocfs2_alloc_context *meta_ac = NULL;
252 int want_clusters = 0;
254 int xattr_credits = 0;
255 struct ocfs2_security_xattr_info si = {
258 int did_quota_inode = 0;
259 struct ocfs2_dir_lookup_result lookup = { NULL, };
261 int did_block_signals = 0;
262 struct posix_acl *default_acl = NULL, *acl = NULL;
263 struct ocfs2_dentry_lock *dl = NULL;
265 trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
266 (unsigned long long)OCFS2_I(dir)->ip_blkno,
267 (unsigned long)dev, mode);
269 status = dquot_initialize(dir);
275 /* get our super block */
276 osb = OCFS2_SB(dir->i_sb);
278 status = ocfs2_inode_lock(dir, &parent_fe_bh, 1);
280 if (status != -ENOENT)
285 if (S_ISDIR(mode) && (dir->i_nlink >= ocfs2_link_max(osb))) {
290 dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
291 if (!ocfs2_read_links_count(dirfe)) {
292 /* can't make a file in a deleted directory. */
297 status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
302 /* get a spot inside the dir. */
303 status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh,
305 dentry->d_name.len, &lookup);
311 /* reserve an inode spot */
312 status = ocfs2_reserve_new_inode(osb, &inode_ac);
314 if (status != -ENOSPC)
319 inode = ocfs2_get_init_inode(dir, mode);
321 status = PTR_ERR(inode);
327 /* get security xattr */
328 status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
330 if (status == -EOPNOTSUPP)
338 /* calculate meta data/clusters for setting security and acl xattr */
339 status = ocfs2_calc_xattr_init(dir, parent_fe_bh, mode,
341 &xattr_credits, &want_meta);
347 /* Reserve a cluster if creating an extent based directory. */
348 if (S_ISDIR(mode) && !ocfs2_supports_inline_data(osb)) {
351 /* Dir indexing requires extra space as well */
352 if (ocfs2_supports_indexed_dirs(osb))
356 status = ocfs2_reserve_new_metadata_blocks(osb, want_meta, &meta_ac);
358 if (status != -ENOSPC)
363 status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac);
365 if (status != -ENOSPC)
370 status = posix_acl_create(dir, &mode, &default_acl, &acl);
375 /* update inode->i_mode after mask with "umask". */
376 inode->i_mode = mode;
378 handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
381 if (IS_ERR(handle)) {
382 status = PTR_ERR(handle);
388 /* Starting to change things, restart is no longer possible. */
389 ocfs2_block_signals(&oldset);
390 did_block_signals = 1;
392 status = dquot_alloc_inode(inode);
397 /* do the real work now. */
398 status = ocfs2_mknod_locked(osb, dir, inode, dev,
399 &new_fe_bh, parent_fe_bh, handle,
407 status = ocfs2_fill_new_dir(osb, handle, dir, inode,
408 new_fe_bh, data_ac, meta_ac);
414 status = ocfs2_journal_access_di(handle, INODE_CACHE(dir),
416 OCFS2_JOURNAL_ACCESS_WRITE);
421 ocfs2_add_links_count(dirfe, 1);
422 ocfs2_journal_dirty(handle, parent_fe_bh);
427 status = ocfs2_set_acl(handle, inode, new_fe_bh,
428 ACL_TYPE_DEFAULT, default_acl,
431 if (!status && acl) {
432 status = ocfs2_set_acl(handle, inode, new_fe_bh,
433 ACL_TYPE_ACCESS, acl,
443 status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si,
452 * Do this before adding the entry to the directory. We add
453 * also set d_op after success so that ->d_iput() will cleanup
454 * the dentry lock even if ocfs2_add_entry() fails below.
456 status = ocfs2_dentry_attach_lock(dentry, inode,
457 OCFS2_I(dir)->ip_blkno);
463 dl = dentry->d_fsdata;
465 status = ocfs2_add_entry(handle, dentry, inode,
466 OCFS2_I(inode)->ip_blkno, parent_fe_bh,
473 insert_inode_hash(inode);
474 d_instantiate(dentry, inode);
478 posix_acl_release(default_acl);
480 posix_acl_release(acl);
481 if (status < 0 && did_quota_inode)
482 dquot_free_inode(inode);
484 ocfs2_commit_trans(osb, handle);
486 ocfs2_inode_unlock(dir, 1);
487 if (did_block_signals)
488 ocfs2_unblock_signals(&oldset);
491 brelse(parent_fe_bh);
494 ocfs2_free_dir_lookup_result(&lookup);
497 ocfs2_free_alloc_context(inode_ac);
500 ocfs2_free_alloc_context(data_ac);
503 ocfs2_free_alloc_context(meta_ac);
506 * We should call iput after the i_mutex of the bitmap been
507 * unlocked in ocfs2_free_alloc_context, or the
508 * ocfs2_delete_inode will mutex_lock again.
510 if ((status < 0) && inode) {
512 ocfs2_cleanup_add_entry_failure(osb, dentry, inode);
514 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR;
525 static int __ocfs2_mknod_locked(struct inode *dir,
528 struct buffer_head **new_fe_bh,
529 struct buffer_head *parent_fe_bh,
531 struct ocfs2_alloc_context *inode_ac,
532 u64 fe_blkno, u64 suballoc_loc, u16 suballoc_bit)
535 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
536 struct ocfs2_dinode *fe = NULL;
537 struct ocfs2_extent_list *fel;
539 struct ocfs2_inode_info *oi = OCFS2_I(inode);
543 /* populate as many fields early on as possible - many of
544 * these are used by the support functions here and in
546 inode->i_ino = ino_from_blkno(osb->sb, fe_blkno);
547 OCFS2_I(inode)->ip_blkno = fe_blkno;
548 spin_lock(&osb->osb_lock);
549 inode->i_generation = osb->s_next_generation++;
550 spin_unlock(&osb->osb_lock);
552 *new_fe_bh = sb_getblk(osb->sb, fe_blkno);
558 ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), *new_fe_bh);
560 status = ocfs2_journal_access_di(handle, INODE_CACHE(inode),
562 OCFS2_JOURNAL_ACCESS_CREATE);
568 fe = (struct ocfs2_dinode *) (*new_fe_bh)->b_data;
569 memset(fe, 0, osb->sb->s_blocksize);
571 fe->i_generation = cpu_to_le32(inode->i_generation);
572 fe->i_fs_generation = cpu_to_le32(osb->fs_generation);
573 fe->i_blkno = cpu_to_le64(fe_blkno);
574 fe->i_suballoc_loc = cpu_to_le64(suballoc_loc);
575 fe->i_suballoc_bit = cpu_to_le16(suballoc_bit);
576 fe->i_suballoc_slot = cpu_to_le16(inode_ac->ac_alloc_slot);
577 fe->i_uid = cpu_to_le32(i_uid_read(inode));
578 fe->i_gid = cpu_to_le32(i_gid_read(inode));
579 fe->i_mode = cpu_to_le16(inode->i_mode);
580 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
581 fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev));
583 ocfs2_set_links_count(fe, inode->i_nlink);
585 fe->i_last_eb_blk = 0;
586 strcpy(fe->i_signature, OCFS2_INODE_SIGNATURE);
587 fe->i_flags |= cpu_to_le32(OCFS2_VALID_FL);
588 fe->i_atime = fe->i_ctime = fe->i_mtime =
589 cpu_to_le64(CURRENT_TIME.tv_sec);
590 fe->i_mtime_nsec = fe->i_ctime_nsec = fe->i_atime_nsec =
591 cpu_to_le32(CURRENT_TIME.tv_nsec);
595 * If supported, directories start with inline data. If inline
596 * isn't supported, but indexing is, we start them as indexed.
598 feat = le16_to_cpu(fe->i_dyn_features);
599 if (S_ISDIR(inode->i_mode) && ocfs2_supports_inline_data(osb)) {
600 fe->i_dyn_features = cpu_to_le16(feat | OCFS2_INLINE_DATA_FL);
602 fe->id2.i_data.id_count = cpu_to_le16(
603 ocfs2_max_inline_data_with_xattr(osb->sb, fe));
605 fel = &fe->id2.i_list;
606 fel->l_tree_depth = 0;
607 fel->l_next_free_rec = 0;
608 fel->l_count = cpu_to_le16(ocfs2_extent_recs_per_inode(osb->sb));
611 ocfs2_journal_dirty(handle, *new_fe_bh);
613 ocfs2_populate_inode(inode, fe, 1);
614 ocfs2_ci_set_new(osb, INODE_CACHE(inode));
615 if (!ocfs2_mount_local(osb)) {
616 status = ocfs2_create_new_inode_locks(inode);
621 oi->i_sync_tid = handle->h_transaction->t_tid;
622 oi->i_datasync_tid = handle->h_transaction->t_tid;
637 static int ocfs2_mknod_locked(struct ocfs2_super *osb,
641 struct buffer_head **new_fe_bh,
642 struct buffer_head *parent_fe_bh,
644 struct ocfs2_alloc_context *inode_ac)
647 u64 suballoc_loc, fe_blkno = 0;
652 status = ocfs2_claim_new_inode(handle, dir, parent_fe_bh,
653 inode_ac, &suballoc_loc,
654 &suballoc_bit, &fe_blkno);
660 status = __ocfs2_mknod_locked(dir, inode, dev, new_fe_bh,
661 parent_fe_bh, handle, inode_ac,
662 fe_blkno, suballoc_loc, suballoc_bit);
664 u64 bg_blkno = ocfs2_which_suballoc_group(fe_blkno, suballoc_bit);
665 int tmp = ocfs2_free_suballoc_bits(handle, inode_ac->ac_inode,
666 inode_ac->ac_bh, suballoc_bit, bg_blkno, 1);
674 static int ocfs2_mkdir(struct inode *dir,
675 struct dentry *dentry,
680 trace_ocfs2_mkdir(dir, dentry, dentry->d_name.len, dentry->d_name.name,
681 OCFS2_I(dir)->ip_blkno, mode);
682 ret = ocfs2_mknod(dir, dentry, mode | S_IFDIR, 0);
689 static int ocfs2_create(struct inode *dir,
690 struct dentry *dentry,
696 trace_ocfs2_create(dir, dentry, dentry->d_name.len, dentry->d_name.name,
697 (unsigned long long)OCFS2_I(dir)->ip_blkno, mode);
698 ret = ocfs2_mknod(dir, dentry, mode | S_IFREG, 0);
705 static int ocfs2_link(struct dentry *old_dentry,
707 struct dentry *dentry)
710 struct inode *inode = d_inode(old_dentry);
711 struct inode *old_dir = d_inode(old_dentry->d_parent);
713 struct buffer_head *fe_bh = NULL;
714 struct buffer_head *old_dir_bh = NULL;
715 struct buffer_head *parent_fe_bh = NULL;
716 struct ocfs2_dinode *fe = NULL;
717 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
718 struct ocfs2_dir_lookup_result lookup = { NULL, };
722 trace_ocfs2_link((unsigned long long)OCFS2_I(inode)->ip_blkno,
723 old_dentry->d_name.len, old_dentry->d_name.name,
724 dentry->d_name.len, dentry->d_name.name);
726 if (S_ISDIR(inode->i_mode))
729 err = dquot_initialize(dir);
735 err = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
736 &parent_fe_bh, dir, 0);
743 /* make sure both dirs have bhs
744 * get an extra ref on old_dir_bh if old==new */
747 parent_fe_bh = old_dir_bh;
748 get_bh(parent_fe_bh);
750 mlog(ML_ERROR, "%s: no old_dir_bh!\n", osb->uuid_str);
761 err = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name,
762 old_dentry->d_name.len, &old_de_ino);
769 * Check whether another node removed the source inode while we
772 if (old_de_ino != OCFS2_I(inode)->ip_blkno) {
777 err = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
782 err = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh,
784 dentry->d_name.len, &lookup);
790 err = ocfs2_inode_lock(inode, &fe_bh, 1);
797 fe = (struct ocfs2_dinode *) fe_bh->b_data;
798 if (ocfs2_read_links_count(fe) >= ocfs2_link_max(osb)) {
800 goto out_unlock_inode;
803 handle = ocfs2_start_trans(osb, ocfs2_link_credits(osb->sb));
804 if (IS_ERR(handle)) {
805 err = PTR_ERR(handle);
808 goto out_unlock_inode;
811 /* Starting to change things, restart is no longer possible. */
812 ocfs2_block_signals(&oldset);
814 err = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh,
815 OCFS2_JOURNAL_ACCESS_WRITE);
822 inode->i_ctime = CURRENT_TIME;
823 ocfs2_set_links_count(fe, inode->i_nlink);
824 fe->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
825 fe->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
826 ocfs2_journal_dirty(handle, fe_bh);
828 err = ocfs2_add_entry(handle, dentry, inode,
829 OCFS2_I(inode)->ip_blkno,
830 parent_fe_bh, &lookup);
832 ocfs2_add_links_count(fe, -1);
838 err = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
845 d_instantiate(dentry, inode);
848 ocfs2_commit_trans(osb, handle);
849 ocfs2_unblock_signals(&oldset);
851 ocfs2_inode_unlock(inode, 1);
854 ocfs2_double_unlock(old_dir, dir);
857 brelse(parent_fe_bh);
860 ocfs2_free_dir_lookup_result(&lookup);
869 * Takes and drops an exclusive lock on the given dentry. This will
870 * force other nodes to drop it.
872 static int ocfs2_remote_dentry_delete(struct dentry *dentry)
876 ret = ocfs2_dentry_lock(dentry, 1);
880 ocfs2_dentry_unlock(dentry, 1);
885 static inline int ocfs2_inode_is_unlinkable(struct inode *inode)
887 if (S_ISDIR(inode->i_mode)) {
888 if (inode->i_nlink == 2)
893 if (inode->i_nlink == 1)
898 static int ocfs2_unlink(struct inode *dir,
899 struct dentry *dentry)
902 int child_locked = 0;
903 bool is_unlinkable = false;
904 struct inode *inode = d_inode(dentry);
905 struct inode *orphan_dir = NULL;
906 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
908 struct ocfs2_dinode *fe = NULL;
909 struct buffer_head *fe_bh = NULL;
910 struct buffer_head *parent_node_bh = NULL;
911 handle_t *handle = NULL;
912 char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
913 struct ocfs2_dir_lookup_result lookup = { NULL, };
914 struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
916 trace_ocfs2_unlink(dir, dentry, dentry->d_name.len,
918 (unsigned long long)OCFS2_I(dir)->ip_blkno,
919 (unsigned long long)OCFS2_I(inode)->ip_blkno);
921 status = dquot_initialize(dir);
927 BUG_ON(d_inode(dentry->d_parent) != dir);
929 if (inode == osb->root_inode)
932 status = ocfs2_inode_lock_nested(dir, &parent_node_bh, 1,
935 if (status != -ENOENT)
940 status = ocfs2_find_files_on_disk(dentry->d_name.name,
941 dentry->d_name.len, &blkno, dir,
944 if (status != -ENOENT)
949 if (OCFS2_I(inode)->ip_blkno != blkno) {
952 trace_ocfs2_unlink_noent(
953 (unsigned long long)OCFS2_I(inode)->ip_blkno,
954 (unsigned long long)blkno,
955 OCFS2_I(inode)->ip_flags);
959 status = ocfs2_inode_lock(inode, &fe_bh, 1);
961 if (status != -ENOENT)
967 if (S_ISDIR(inode->i_mode)) {
968 if (inode->i_nlink != 2 || !ocfs2_empty_dir(inode)) {
974 status = ocfs2_remote_dentry_delete(dentry);
976 /* This remote delete should succeed under all normal
982 if (ocfs2_inode_is_unlinkable(inode)) {
983 status = ocfs2_prepare_orphan_dir(osb, &orphan_dir,
984 OCFS2_I(inode)->ip_blkno,
985 orphan_name, &orphan_insert,
991 is_unlinkable = true;
994 handle = ocfs2_start_trans(osb, ocfs2_unlink_credits(osb->sb));
995 if (IS_ERR(handle)) {
996 status = PTR_ERR(handle);
1002 status = ocfs2_journal_access_di(handle, INODE_CACHE(inode), fe_bh,
1003 OCFS2_JOURNAL_ACCESS_WRITE);
1009 fe = (struct ocfs2_dinode *) fe_bh->b_data;
1011 /* delete the name from the parent dir */
1012 status = ocfs2_delete_entry(handle, dir, &lookup);
1018 if (S_ISDIR(inode->i_mode))
1021 ocfs2_set_links_count(fe, inode->i_nlink);
1022 ocfs2_journal_dirty(handle, fe_bh);
1024 dir->i_ctime = dir->i_mtime = CURRENT_TIME;
1025 if (S_ISDIR(inode->i_mode))
1028 status = ocfs2_mark_inode_dirty(handle, dir, parent_node_bh);
1031 if (S_ISDIR(inode->i_mode))
1036 if (is_unlinkable) {
1037 status = ocfs2_orphan_add(osb, handle, inode, fe_bh,
1038 orphan_name, &orphan_insert, orphan_dir, false);
1045 ocfs2_commit_trans(osb, handle);
1048 /* This was locked for us in ocfs2_prepare_orphan_dir() */
1049 ocfs2_inode_unlock(orphan_dir, 1);
1050 mutex_unlock(&orphan_dir->i_mutex);
1055 ocfs2_inode_unlock(inode, 1);
1057 ocfs2_inode_unlock(dir, 1);
1060 brelse(parent_node_bh);
1062 ocfs2_free_dir_lookup_result(&orphan_insert);
1063 ocfs2_free_dir_lookup_result(&lookup);
1065 if (status && (status != -ENOTEMPTY) && (status != -ENOENT))
1071 static int ocfs2_check_if_ancestor(struct ocfs2_super *osb,
1072 u64 src_inode_no, u64 dest_inode_no)
1075 u64 parent_inode_no = 0;
1076 u64 child_inode_no = src_inode_no;
1077 struct inode *child_inode;
1079 #define MAX_LOOKUP_TIMES 32
1081 child_inode = ocfs2_iget(osb, child_inode_no, 0, 0);
1082 if (IS_ERR(child_inode)) {
1083 ret = PTR_ERR(child_inode);
1087 ret = ocfs2_inode_lock(child_inode, NULL, 0);
1095 ret = ocfs2_lookup_ino_from_name(child_inode, "..", 2,
1097 ocfs2_inode_unlock(child_inode, 0);
1104 if (parent_inode_no == dest_inode_no) {
1109 if (parent_inode_no == osb->root_inode->i_ino) {
1114 child_inode_no = parent_inode_no;
1116 if (++i >= MAX_LOOKUP_TIMES) {
1117 mlog(ML_NOTICE, "max lookup times reached, filesystem "
1118 "may have nested directories, "
1119 "src inode: %llu, dest inode: %llu.\n",
1120 (unsigned long long)src_inode_no,
1121 (unsigned long long)dest_inode_no);
1131 * The only place this should be used is rename and link!
1132 * if they have the same id, then the 1st one is the only one locked.
1134 static int ocfs2_double_lock(struct ocfs2_super *osb,
1135 struct buffer_head **bh1,
1136 struct inode *inode1,
1137 struct buffer_head **bh2,
1138 struct inode *inode2,
1142 int inode1_is_ancestor, inode2_is_ancestor;
1143 struct ocfs2_inode_info *oi1 = OCFS2_I(inode1);
1144 struct ocfs2_inode_info *oi2 = OCFS2_I(inode2);
1146 trace_ocfs2_double_lock((unsigned long long)oi1->ip_blkno,
1147 (unsigned long long)oi2->ip_blkno);
1154 /* we always want to lock the one with the lower lockid first.
1155 * and if they are nested, we lock ancestor first */
1156 if (oi1->ip_blkno != oi2->ip_blkno) {
1157 inode1_is_ancestor = ocfs2_check_if_ancestor(osb, oi2->ip_blkno,
1159 if (inode1_is_ancestor < 0) {
1160 status = inode1_is_ancestor;
1164 inode2_is_ancestor = ocfs2_check_if_ancestor(osb, oi1->ip_blkno,
1166 if (inode2_is_ancestor < 0) {
1167 status = inode2_is_ancestor;
1171 if ((inode1_is_ancestor == 1) ||
1172 (oi1->ip_blkno < oi2->ip_blkno &&
1173 inode2_is_ancestor == 0)) {
1174 /* switch id1 and id2 around */
1176 swap(inode2, inode1);
1179 status = ocfs2_inode_lock_nested(inode2, bh2, 1,
1180 rename == 1 ? OI_LS_RENAME1 : OI_LS_PARENT);
1182 if (status != -ENOENT)
1189 status = ocfs2_inode_lock_nested(inode1, bh1, 1,
1190 rename == 1 ? OI_LS_RENAME2 : OI_LS_PARENT);
1193 * An error return must mean that no cluster locks
1194 * were held on function exit.
1196 if (oi1->ip_blkno != oi2->ip_blkno) {
1197 ocfs2_inode_unlock(inode2, 1);
1202 if (status != -ENOENT)
1206 trace_ocfs2_double_lock_end(
1207 (unsigned long long)OCFS2_I(inode1)->ip_blkno,
1208 (unsigned long long)OCFS2_I(inode2)->ip_blkno);
1216 static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2)
1218 ocfs2_inode_unlock(inode1, 1);
1220 if (inode1 != inode2)
1221 ocfs2_inode_unlock(inode2, 1);
1224 static int ocfs2_rename(struct inode *old_dir,
1225 struct dentry *old_dentry,
1226 struct inode *new_dir,
1227 struct dentry *new_dentry)
1229 int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0;
1230 int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0;
1231 struct inode *old_inode = d_inode(old_dentry);
1232 struct inode *new_inode = d_inode(new_dentry);
1233 struct inode *orphan_dir = NULL;
1234 struct ocfs2_dinode *newfe = NULL;
1235 char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
1236 struct buffer_head *newfe_bh = NULL;
1237 struct buffer_head *old_inode_bh = NULL;
1238 struct ocfs2_super *osb = NULL;
1239 u64 newfe_blkno, old_de_ino;
1240 handle_t *handle = NULL;
1241 struct buffer_head *old_dir_bh = NULL;
1242 struct buffer_head *new_dir_bh = NULL;
1243 u32 old_dir_nlink = old_dir->i_nlink;
1244 struct ocfs2_dinode *old_di;
1245 struct ocfs2_dir_lookup_result old_inode_dot_dot_res = { NULL, };
1246 struct ocfs2_dir_lookup_result target_lookup_res = { NULL, };
1247 struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, };
1248 struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
1249 struct ocfs2_dir_lookup_result target_insert = { NULL, };
1250 bool should_add_orphan = false;
1252 /* At some point it might be nice to break this function up a
1255 trace_ocfs2_rename(old_dir, old_dentry, new_dir, new_dentry,
1256 old_dentry->d_name.len, old_dentry->d_name.name,
1257 new_dentry->d_name.len, new_dentry->d_name.name);
1259 status = dquot_initialize(old_dir);
1264 status = dquot_initialize(new_dir);
1270 osb = OCFS2_SB(old_dir->i_sb);
1273 if (!igrab(new_inode))
1277 /* Assume a directory hierarchy thusly:
1280 * a,b,c, and d are all directories.
1282 * from cwd of 'a' on both nodes:
1286 * And that's why, just like the VFS, we need a file system
1288 if (old_dir != new_dir && S_ISDIR(old_inode->i_mode)) {
1289 status = ocfs2_rename_lock(osb);
1296 /* here we cannot guarantee the inodes haven't just been
1297 * changed, so check if they are nested again */
1298 status = ocfs2_check_if_ancestor(osb, new_dir->i_ino,
1303 } else if (status == 1) {
1305 trace_ocfs2_rename_not_permitted(
1306 (unsigned long long)old_inode->i_ino,
1307 (unsigned long long)new_dir->i_ino);
1312 /* if old and new are the same, this'll just do one lock. */
1313 status = ocfs2_double_lock(osb, &old_dir_bh, old_dir,
1314 &new_dir_bh, new_dir, 1);
1321 if (!new_dir->i_nlink) {
1326 /* make sure both dirs have bhs
1327 * get an extra ref on old_dir_bh if old==new */
1330 new_dir_bh = old_dir_bh;
1333 mlog(ML_ERROR, "no old_dir_bh!\n");
1340 * Aside from allowing a meta data update, the locking here
1341 * also ensures that the downconvert thread on other nodes
1342 * won't have to concurrently downconvert the inode and the
1345 status = ocfs2_inode_lock_nested(old_inode, &old_inode_bh, 1,
1348 if (status != -ENOENT)
1352 old_child_locked = 1;
1354 status = ocfs2_remote_dentry_delete(old_dentry);
1360 if (S_ISDIR(old_inode->i_mode)) {
1361 u64 old_inode_parent;
1364 status = ocfs2_find_files_on_disk("..", 2, &old_inode_parent,
1366 &old_inode_dot_dot_res);
1372 if (old_inode_parent != OCFS2_I(old_dir)->ip_blkno) {
1377 if (!new_inode && new_dir != old_dir &&
1378 new_dir->i_nlink >= ocfs2_link_max(osb)) {
1384 status = ocfs2_lookup_ino_from_name(old_dir, old_dentry->d_name.name,
1385 old_dentry->d_name.len,
1393 * Check for inode number is _not_ due to possible IO errors.
1394 * We might rmdir the source, keep it as pwd of some process
1395 * and merrily kill the link to whatever was created under the
1396 * same name. Goodbye sticky bit ;-<
1398 if (old_de_ino != OCFS2_I(old_inode)->ip_blkno) {
1403 /* check if the target already exists (in which case we need
1405 status = ocfs2_find_files_on_disk(new_dentry->d_name.name,
1406 new_dentry->d_name.len,
1407 &newfe_blkno, new_dir,
1408 &target_lookup_res);
1409 /* The only error we allow here is -ENOENT because the new
1410 * file not existing is perfectly valid. */
1411 if ((status < 0) && (status != -ENOENT)) {
1412 /* If we cannot find the file specified we should just */
1413 /* return the error... */
1420 if (!target_exists && new_inode) {
1422 * Target was unlinked by another node while we were
1423 * waiting to get to ocfs2_rename(). There isn't
1424 * anything we can do here to help the situation, so
1425 * bubble up the appropriate error.
1431 /* In case we need to overwrite an existing file, we blow it
1433 if (target_exists) {
1434 /* VFS didn't think there existed an inode here, but
1435 * someone else in the cluster must have raced our
1436 * rename to create one. Today we error cleanly, in
1437 * the future we should consider calling iget to build
1438 * a new struct inode for this entry. */
1442 trace_ocfs2_rename_target_exists(new_dentry->d_name.len,
1443 new_dentry->d_name.name);
1447 if (OCFS2_I(new_inode)->ip_blkno != newfe_blkno) {
1450 trace_ocfs2_rename_disagree(
1451 (unsigned long long)OCFS2_I(new_inode)->ip_blkno,
1452 (unsigned long long)newfe_blkno,
1453 OCFS2_I(new_inode)->ip_flags);
1457 status = ocfs2_inode_lock(new_inode, &newfe_bh, 1);
1459 if (status != -ENOENT)
1463 new_child_locked = 1;
1465 status = ocfs2_remote_dentry_delete(new_dentry);
1471 newfe = (struct ocfs2_dinode *) newfe_bh->b_data;
1473 trace_ocfs2_rename_over_existing(
1474 (unsigned long long)newfe_blkno, newfe_bh, newfe_bh ?
1475 (unsigned long long)newfe_bh->b_blocknr : 0ULL);
1477 if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) {
1478 status = ocfs2_prepare_orphan_dir(osb, &orphan_dir,
1479 OCFS2_I(new_inode)->ip_blkno,
1480 orphan_name, &orphan_insert,
1486 should_add_orphan = true;
1489 BUG_ON(d_inode(new_dentry->d_parent) != new_dir);
1491 status = ocfs2_check_dir_for_entry(new_dir,
1492 new_dentry->d_name.name,
1493 new_dentry->d_name.len);
1497 status = ocfs2_prepare_dir_for_insert(osb, new_dir, new_dir_bh,
1498 new_dentry->d_name.name,
1499 new_dentry->d_name.len,
1507 handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb));
1508 if (IS_ERR(handle)) {
1509 status = PTR_ERR(handle);
1515 if (target_exists) {
1516 if (S_ISDIR(new_inode->i_mode)) {
1517 if (new_inode->i_nlink != 2 ||
1518 !ocfs2_empty_dir(new_inode)) {
1519 status = -ENOTEMPTY;
1523 status = ocfs2_journal_access_di(handle, INODE_CACHE(new_inode),
1525 OCFS2_JOURNAL_ACCESS_WRITE);
1531 /* change the dirent to point to the correct inode */
1532 status = ocfs2_update_entry(new_dir, handle, &target_lookup_res,
1538 new_dir->i_version++;
1540 if (S_ISDIR(new_inode->i_mode))
1541 ocfs2_set_links_count(newfe, 0);
1543 ocfs2_add_links_count(newfe, -1);
1544 ocfs2_journal_dirty(handle, newfe_bh);
1545 if (should_add_orphan) {
1546 status = ocfs2_orphan_add(osb, handle, new_inode,
1547 newfe_bh, orphan_name,
1548 &orphan_insert, orphan_dir, false);
1555 /* if the name was not found in new_dir, add it now */
1556 status = ocfs2_add_entry(handle, new_dentry, old_inode,
1557 OCFS2_I(old_inode)->ip_blkno,
1558 new_dir_bh, &target_insert);
1561 old_inode->i_ctime = CURRENT_TIME;
1562 mark_inode_dirty(old_inode);
1564 status = ocfs2_journal_access_di(handle, INODE_CACHE(old_inode),
1566 OCFS2_JOURNAL_ACCESS_WRITE);
1568 old_di = (struct ocfs2_dinode *) old_inode_bh->b_data;
1570 old_di->i_ctime = cpu_to_le64(old_inode->i_ctime.tv_sec);
1571 old_di->i_ctime_nsec = cpu_to_le32(old_inode->i_ctime.tv_nsec);
1572 ocfs2_journal_dirty(handle, old_inode_bh);
1577 * Now that the name has been added to new_dir, remove the old name.
1579 * We don't keep any directory entry context around until now
1580 * because the insert might have changed the type of directory
1581 * we're dealing with.
1583 status = ocfs2_find_entry(old_dentry->d_name.name,
1584 old_dentry->d_name.len, old_dir,
1587 if (!is_journal_aborted(osb->journal->j_journal)) {
1588 ocfs2_error(osb->sb, "new entry %.*s is added, but old entry %.*s "
1590 new_dentry->d_name.len, new_dentry->d_name.name,
1591 old_dentry->d_name.len, old_dentry->d_name.name);
1596 status = ocfs2_delete_entry(handle, old_dir, &old_entry_lookup);
1599 if (!is_journal_aborted(osb->journal->j_journal)) {
1600 ocfs2_error(osb->sb, "new entry %.*s is added, but old entry %.*s "
1602 new_dentry->d_name.len, new_dentry->d_name.name,
1603 old_dentry->d_name.len, old_dentry->d_name.name);
1609 drop_nlink(new_inode);
1610 new_inode->i_ctime = CURRENT_TIME;
1612 old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME;
1614 if (update_dot_dot) {
1615 status = ocfs2_update_entry(old_inode, handle,
1616 &old_inode_dot_dot_res, new_dir);
1617 drop_nlink(old_dir);
1619 drop_nlink(new_inode);
1622 mark_inode_dirty(new_dir);
1625 mark_inode_dirty(old_dir);
1626 ocfs2_mark_inode_dirty(handle, old_dir, old_dir_bh);
1628 mark_inode_dirty(new_inode);
1629 ocfs2_mark_inode_dirty(handle, new_inode, newfe_bh);
1632 if (old_dir != new_dir) {
1633 /* Keep the same times on both directories.*/
1634 new_dir->i_ctime = new_dir->i_mtime = old_dir->i_ctime;
1637 * This will also pick up the i_nlink change from the
1640 ocfs2_mark_inode_dirty(handle, new_dir, new_dir_bh);
1643 if (old_dir_nlink != old_dir->i_nlink) {
1645 mlog(ML_ERROR, "need to change nlink for old dir "
1646 "%llu from %d to %d but bh is NULL!\n",
1647 (unsigned long long)OCFS2_I(old_dir)->ip_blkno,
1648 (int)old_dir_nlink, old_dir->i_nlink);
1650 struct ocfs2_dinode *fe;
1651 status = ocfs2_journal_access_di(handle,
1652 INODE_CACHE(old_dir),
1654 OCFS2_JOURNAL_ACCESS_WRITE);
1655 fe = (struct ocfs2_dinode *) old_dir_bh->b_data;
1656 ocfs2_set_links_count(fe, old_dir->i_nlink);
1657 ocfs2_journal_dirty(handle, old_dir_bh);
1660 ocfs2_dentry_move(old_dentry, new_dentry, old_dir, new_dir);
1664 ocfs2_commit_trans(osb, handle);
1667 /* This was locked for us in ocfs2_prepare_orphan_dir() */
1668 ocfs2_inode_unlock(orphan_dir, 1);
1669 mutex_unlock(&orphan_dir->i_mutex);
1673 if (new_child_locked)
1674 ocfs2_inode_unlock(new_inode, 1);
1676 if (old_child_locked)
1677 ocfs2_inode_unlock(old_inode, 1);
1680 ocfs2_double_unlock(old_dir, new_dir);
1683 ocfs2_rename_unlock(osb);
1686 sync_mapping_buffers(old_inode->i_mapping);
1691 ocfs2_free_dir_lookup_result(&target_lookup_res);
1692 ocfs2_free_dir_lookup_result(&old_entry_lookup);
1693 ocfs2_free_dir_lookup_result(&old_inode_dot_dot_res);
1694 ocfs2_free_dir_lookup_result(&orphan_insert);
1695 ocfs2_free_dir_lookup_result(&target_insert);
1698 brelse(old_inode_bh);
1709 * we expect i_size = strlen(symname). Copy symname into the file
1710 * data, including the null terminator.
1712 static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
1714 struct inode *inode,
1715 const char *symname)
1717 struct buffer_head **bhs = NULL;
1719 struct super_block *sb = osb->sb;
1720 u64 p_blkno, p_blocks;
1721 int virtual, blocks, status, i, bytes_left;
1723 bytes_left = i_size_read(inode) + 1;
1724 /* we can't trust i_blocks because we're actually going to
1725 * write i_size + 1 bytes. */
1726 blocks = (bytes_left + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
1728 trace_ocfs2_create_symlink_data((unsigned long long)inode->i_blocks,
1729 i_size_read(inode), blocks);
1731 /* Sanity check -- make sure we're going to fit. */
1733 ocfs2_clusters_to_bytes(sb, OCFS2_I(inode)->ip_clusters)) {
1739 bhs = kcalloc(blocks, sizeof(struct buffer_head *), GFP_KERNEL);
1746 status = ocfs2_extent_map_get_blocks(inode, 0, &p_blkno, &p_blocks,
1753 /* links can never be larger than one cluster so we know this
1754 * is all going to be contiguous, but do a sanity check
1756 if ((p_blocks << sb->s_blocksize_bits) < bytes_left) {
1763 while(bytes_left > 0) {
1764 c = &symname[virtual * sb->s_blocksize];
1766 bhs[virtual] = sb_getblk(sb, p_blkno);
1767 if (!bhs[virtual]) {
1772 ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode),
1775 status = ocfs2_journal_access(handle, INODE_CACHE(inode),
1777 OCFS2_JOURNAL_ACCESS_CREATE);
1783 memset(bhs[virtual]->b_data, 0, sb->s_blocksize);
1785 memcpy(bhs[virtual]->b_data, c,
1786 (bytes_left > sb->s_blocksize) ? sb->s_blocksize :
1789 ocfs2_journal_dirty(handle, bhs[virtual]);
1793 bytes_left -= sb->s_blocksize;
1800 for(i = 0; i < blocks; i++)
1810 static int ocfs2_symlink(struct inode *dir,
1811 struct dentry *dentry,
1812 const char *symname)
1814 int status, l, credits;
1816 struct ocfs2_super *osb = NULL;
1817 struct inode *inode = NULL;
1818 struct super_block *sb;
1819 struct buffer_head *new_fe_bh = NULL;
1820 struct buffer_head *parent_fe_bh = NULL;
1821 struct ocfs2_dinode *fe = NULL;
1822 struct ocfs2_dinode *dirfe;
1823 handle_t *handle = NULL;
1824 struct ocfs2_alloc_context *inode_ac = NULL;
1825 struct ocfs2_alloc_context *data_ac = NULL;
1826 struct ocfs2_alloc_context *xattr_ac = NULL;
1827 int want_clusters = 0;
1828 int xattr_credits = 0;
1829 struct ocfs2_security_xattr_info si = {
1832 int did_quota = 0, did_quota_inode = 0;
1833 struct ocfs2_dir_lookup_result lookup = { NULL, };
1835 int did_block_signals = 0;
1836 struct ocfs2_dentry_lock *dl = NULL;
1838 trace_ocfs2_symlink_begin(dir, dentry, symname,
1839 dentry->d_name.len, dentry->d_name.name);
1841 status = dquot_initialize(dir);
1850 l = strlen(symname) + 1;
1852 credits = ocfs2_calc_symlink_credits(sb);
1854 /* lock the parent directory */
1855 status = ocfs2_inode_lock(dir, &parent_fe_bh, 1);
1857 if (status != -ENOENT)
1862 dirfe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
1863 if (!ocfs2_read_links_count(dirfe)) {
1864 /* can't make a file in a deleted directory. */
1869 status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
1870 dentry->d_name.len);
1874 status = ocfs2_prepare_dir_for_insert(osb, dir, parent_fe_bh,
1875 dentry->d_name.name,
1876 dentry->d_name.len, &lookup);
1882 status = ocfs2_reserve_new_inode(osb, &inode_ac);
1884 if (status != -ENOSPC)
1889 inode = ocfs2_get_init_inode(dir, S_IFLNK | S_IRWXUGO);
1890 if (IS_ERR(inode)) {
1891 status = PTR_ERR(inode);
1897 /* get security xattr */
1898 status = ocfs2_init_security_get(inode, dir, &dentry->d_name, &si);
1900 if (status == -EOPNOTSUPP)
1908 /* calculate meta data/clusters for setting security xattr */
1910 status = ocfs2_calc_security_init(dir, &si, &want_clusters,
1911 &xattr_credits, &xattr_ac);
1918 /* don't reserve bitmap space for fast symlinks. */
1919 if (l > ocfs2_fast_symlink_chars(sb))
1922 status = ocfs2_reserve_clusters(osb, want_clusters, &data_ac);
1924 if (status != -ENOSPC)
1929 handle = ocfs2_start_trans(osb, credits + xattr_credits);
1930 if (IS_ERR(handle)) {
1931 status = PTR_ERR(handle);
1937 /* Starting to change things, restart is no longer possible. */
1938 ocfs2_block_signals(&oldset);
1939 did_block_signals = 1;
1941 status = dquot_alloc_inode(inode);
1944 did_quota_inode = 1;
1946 trace_ocfs2_symlink_create(dir, dentry, dentry->d_name.len,
1947 dentry->d_name.name,
1948 (unsigned long long)OCFS2_I(dir)->ip_blkno,
1951 status = ocfs2_mknod_locked(osb, dir, inode,
1952 0, &new_fe_bh, parent_fe_bh, handle,
1959 fe = (struct ocfs2_dinode *) new_fe_bh->b_data;
1962 inode->i_op = &ocfs2_symlink_inode_operations;
1963 if (l > ocfs2_fast_symlink_chars(sb)) {
1966 status = dquot_alloc_space_nodirty(inode,
1967 ocfs2_clusters_to_bytes(osb->sb, 1));
1971 inode->i_mapping->a_ops = &ocfs2_aops;
1972 status = ocfs2_add_inode_data(osb, inode, &offset, 1, 0,
1974 handle, data_ac, NULL,
1977 if (status != -ENOSPC && status != -EINTR) {
1979 "Failed to extend file to %llu\n",
1980 (unsigned long long)newsize);
1986 i_size_write(inode, newsize);
1987 inode->i_blocks = ocfs2_inode_sector_count(inode);
1989 inode->i_mapping->a_ops = &ocfs2_fast_symlink_aops;
1990 memcpy((char *) fe->id2.i_symlink, symname, l);
1991 i_size_write(inode, newsize);
1992 inode->i_blocks = 0;
1995 status = ocfs2_mark_inode_dirty(handle, inode, new_fe_bh);
2001 if (!ocfs2_inode_is_fast_symlink(inode)) {
2002 status = ocfs2_create_symlink_data(osb, handle, inode,
2011 status = ocfs2_init_security_set(handle, inode, new_fe_bh, &si,
2020 * Do this before adding the entry to the directory. We add
2021 * also set d_op after success so that ->d_iput() will cleanup
2022 * the dentry lock even if ocfs2_add_entry() fails below.
2024 status = ocfs2_dentry_attach_lock(dentry, inode, OCFS2_I(dir)->ip_blkno);
2030 dl = dentry->d_fsdata;
2032 status = ocfs2_add_entry(handle, dentry, inode,
2033 le64_to_cpu(fe->i_blkno), parent_fe_bh,
2040 insert_inode_hash(inode);
2041 d_instantiate(dentry, inode);
2043 if (status < 0 && did_quota)
2044 dquot_free_space_nodirty(inode,
2045 ocfs2_clusters_to_bytes(osb->sb, 1));
2046 if (status < 0 && did_quota_inode)
2047 dquot_free_inode(inode);
2049 ocfs2_commit_trans(osb, handle);
2051 ocfs2_inode_unlock(dir, 1);
2052 if (did_block_signals)
2053 ocfs2_unblock_signals(&oldset);
2056 brelse(parent_fe_bh);
2058 ocfs2_free_dir_lookup_result(&lookup);
2060 ocfs2_free_alloc_context(inode_ac);
2062 ocfs2_free_alloc_context(data_ac);
2064 ocfs2_free_alloc_context(xattr_ac);
2065 if ((status < 0) && inode) {
2067 ocfs2_cleanup_add_entry_failure(osb, dentry, inode);
2069 OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR;
2080 static int ocfs2_blkno_stringify(u64 blkno, char *name)
2082 int status, namelen;
2084 namelen = snprintf(name, OCFS2_ORPHAN_NAMELEN + 1, "%016llx",
2094 if (namelen != OCFS2_ORPHAN_NAMELEN) {
2100 trace_ocfs2_blkno_stringify(blkno, name, namelen);
2109 static int ocfs2_lookup_lock_orphan_dir(struct ocfs2_super *osb,
2110 struct inode **ret_orphan_dir,
2111 struct buffer_head **ret_orphan_dir_bh)
2113 struct inode *orphan_dir_inode;
2114 struct buffer_head *orphan_dir_bh = NULL;
2117 orphan_dir_inode = ocfs2_get_system_file_inode(osb,
2118 ORPHAN_DIR_SYSTEM_INODE,
2120 if (!orphan_dir_inode) {
2126 mutex_lock(&orphan_dir_inode->i_mutex);
2128 ret = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
2130 mutex_unlock(&orphan_dir_inode->i_mutex);
2131 iput(orphan_dir_inode);
2137 *ret_orphan_dir = orphan_dir_inode;
2138 *ret_orphan_dir_bh = orphan_dir_bh;
2143 static int __ocfs2_prepare_orphan_dir(struct inode *orphan_dir_inode,
2144 struct buffer_head *orphan_dir_bh,
2147 struct ocfs2_dir_lookup_result *lookup,
2151 struct ocfs2_super *osb = OCFS2_SB(orphan_dir_inode->i_sb);
2153 (OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN) :
2154 OCFS2_ORPHAN_NAMELEN;
2157 ret = snprintf(name, OCFS2_DIO_ORPHAN_PREFIX_LEN + 1, "%s",
2158 OCFS2_DIO_ORPHAN_PREFIX);
2159 if (ret != OCFS2_DIO_ORPHAN_PREFIX_LEN) {
2165 ret = ocfs2_blkno_stringify(blkno,
2166 name + OCFS2_DIO_ORPHAN_PREFIX_LEN);
2168 ret = ocfs2_blkno_stringify(blkno, name);
2174 ret = ocfs2_prepare_dir_for_insert(osb, orphan_dir_inode,
2175 orphan_dir_bh, name,
2186 * ocfs2_prepare_orphan_dir() - Prepare an orphan directory for
2187 * insertion of an orphan.
2188 * @osb: ocfs2 file system
2189 * @ret_orphan_dir: Orphan dir inode - returned locked!
2190 * @blkno: Actual block number of the inode to be inserted into orphan dir.
2191 * @lookup: dir lookup result, to be passed back into functions like
2194 * Returns zero on success and the ret_orphan_dir, name and lookup
2195 * fields will be populated.
2197 * Returns non-zero on failure.
2199 static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
2200 struct inode **ret_orphan_dir,
2203 struct ocfs2_dir_lookup_result *lookup,
2206 struct inode *orphan_dir_inode = NULL;
2207 struct buffer_head *orphan_dir_bh = NULL;
2210 ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir_inode,
2217 ret = __ocfs2_prepare_orphan_dir(orphan_dir_inode, orphan_dir_bh,
2218 blkno, name, lookup, dio);
2224 *ret_orphan_dir = orphan_dir_inode;
2227 brelse(orphan_dir_bh);
2230 ocfs2_inode_unlock(orphan_dir_inode, 1);
2231 mutex_unlock(&orphan_dir_inode->i_mutex);
2232 iput(orphan_dir_inode);
2240 static int ocfs2_orphan_add(struct ocfs2_super *osb,
2242 struct inode *inode,
2243 struct buffer_head *fe_bh,
2245 struct ocfs2_dir_lookup_result *lookup,
2246 struct inode *orphan_dir_inode,
2249 struct buffer_head *orphan_dir_bh = NULL;
2251 struct ocfs2_dinode *orphan_fe;
2252 struct ocfs2_dinode *fe = (struct ocfs2_dinode *) fe_bh->b_data;
2254 (OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN) :
2255 OCFS2_ORPHAN_NAMELEN;
2257 trace_ocfs2_orphan_add_begin(
2258 (unsigned long long)OCFS2_I(inode)->ip_blkno);
2260 status = ocfs2_read_inode_block(orphan_dir_inode, &orphan_dir_bh);
2266 status = ocfs2_journal_access_di(handle,
2267 INODE_CACHE(orphan_dir_inode),
2269 OCFS2_JOURNAL_ACCESS_WRITE);
2276 * We're going to journal the change of i_flags and i_orphaned_slot.
2277 * It's safe anyway, though some callers may duplicate the journaling.
2278 * Journaling within the func just make the logic look more
2281 status = ocfs2_journal_access_di(handle,
2284 OCFS2_JOURNAL_ACCESS_WRITE);
2290 /* we're a cluster, and nlink can change on disk from
2291 * underneath us... */
2292 orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data;
2293 if (S_ISDIR(inode->i_mode))
2294 ocfs2_add_links_count(orphan_fe, 1);
2295 set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
2296 ocfs2_journal_dirty(handle, orphan_dir_bh);
2298 status = __ocfs2_add_entry(handle, orphan_dir_inode, name,
2300 OCFS2_I(inode)->ip_blkno,
2301 orphan_dir_bh, lookup);
2308 /* Update flag OCFS2_DIO_ORPHANED_FL and record the orphan
2311 fe->i_flags |= cpu_to_le32(OCFS2_DIO_ORPHANED_FL);
2312 fe->i_dio_orphaned_slot = cpu_to_le16(osb->slot_num);
2314 fe->i_flags |= cpu_to_le32(OCFS2_ORPHANED_FL);
2315 OCFS2_I(inode)->ip_flags &= ~OCFS2_INODE_SKIP_ORPHAN_DIR;
2317 /* Record which orphan dir our inode now resides
2318 * in. delete_inode will use this to determine which orphan
2320 fe->i_orphaned_slot = cpu_to_le16(osb->slot_num);
2323 ocfs2_journal_dirty(handle, fe_bh);
2325 trace_ocfs2_orphan_add_end((unsigned long long)OCFS2_I(inode)->ip_blkno,
2330 if (S_ISDIR(inode->i_mode))
2331 ocfs2_add_links_count(orphan_fe, -1);
2332 set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
2336 brelse(orphan_dir_bh);
2341 /* unlike orphan_add, we expect the orphan dir to already be locked here. */
2342 int ocfs2_orphan_del(struct ocfs2_super *osb,
2344 struct inode *orphan_dir_inode,
2345 struct inode *inode,
2346 struct buffer_head *orphan_dir_bh,
2349 const int namelen = OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN;
2350 char name[namelen + 1];
2351 struct ocfs2_dinode *orphan_fe;
2353 struct ocfs2_dir_lookup_result lookup = { NULL, };
2356 status = snprintf(name, OCFS2_DIO_ORPHAN_PREFIX_LEN + 1, "%s",
2357 OCFS2_DIO_ORPHAN_PREFIX);
2358 if (status != OCFS2_DIO_ORPHAN_PREFIX_LEN) {
2364 status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno,
2365 name + OCFS2_DIO_ORPHAN_PREFIX_LEN);
2367 status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name);
2373 trace_ocfs2_orphan_del(
2374 (unsigned long long)OCFS2_I(orphan_dir_inode)->ip_blkno,
2375 name, strlen(name));
2377 /* find it's spot in the orphan directory */
2378 status = ocfs2_find_entry(name, strlen(name), orphan_dir_inode,
2385 /* remove it from the orphan directory */
2386 status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup);
2392 status = ocfs2_journal_access_di(handle,
2393 INODE_CACHE(orphan_dir_inode),
2395 OCFS2_JOURNAL_ACCESS_WRITE);
2401 /* do the i_nlink dance! :) */
2402 orphan_fe = (struct ocfs2_dinode *) orphan_dir_bh->b_data;
2403 if (S_ISDIR(inode->i_mode))
2404 ocfs2_add_links_count(orphan_fe, -1);
2405 set_nlink(orphan_dir_inode, ocfs2_read_links_count(orphan_fe));
2406 ocfs2_journal_dirty(handle, orphan_dir_bh);
2409 ocfs2_free_dir_lookup_result(&lookup);
2417 * ocfs2_prep_new_orphaned_file() - Prepare the orphan dir to receive a newly
2418 * allocated file. This is different from the typical 'add to orphan dir'
2419 * operation in that the inode does not yet exist. This is a problem because
2420 * the orphan dir stringifies the inode block number to come up with it's
2421 * dirent. Obviously if the inode does not yet exist we have a chicken and egg
2422 * problem. This function works around it by calling deeper into the orphan
2423 * and suballoc code than other callers. Use this only by necessity.
2424 * @dir: The directory which this inode will ultimately wind up under - not the
2426 * @dir_bh: buffer_head the @dir inode block
2427 * @orphan_name: string of length (CFS2_ORPHAN_NAMELEN + 1). Will be filled
2428 * with the string to be used for orphan dirent. Pass back to the orphan dir
2430 * @ret_orphan_dir: orphan dir inode returned to be passed back into orphan
2432 * @ret_di_blkno: block number where the new inode will be allocated.
2433 * @orphan_insert: Dir insert context to be passed back into orphan dir code.
2434 * @ret_inode_ac: Inode alloc context to be passed back to the allocator.
2436 * Returns zero on success and the ret_orphan_dir, name and lookup
2437 * fields will be populated.
2439 * Returns non-zero on failure.
2441 static int ocfs2_prep_new_orphaned_file(struct inode *dir,
2442 struct buffer_head *dir_bh,
2444 struct inode **ret_orphan_dir,
2446 struct ocfs2_dir_lookup_result *orphan_insert,
2447 struct ocfs2_alloc_context **ret_inode_ac)
2451 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
2452 struct inode *orphan_dir = NULL;
2453 struct buffer_head *orphan_dir_bh = NULL;
2454 struct ocfs2_alloc_context *inode_ac = NULL;
2456 ret = ocfs2_lookup_lock_orphan_dir(osb, &orphan_dir, &orphan_dir_bh);
2462 /* reserve an inode spot */
2463 ret = ocfs2_reserve_new_inode(osb, &inode_ac);
2470 ret = ocfs2_find_new_inode_loc(dir, dir_bh, inode_ac,
2477 ret = __ocfs2_prepare_orphan_dir(orphan_dir, orphan_dir_bh,
2478 di_blkno, orphan_name, orphan_insert,
2487 *ret_orphan_dir = orphan_dir;
2488 *ret_di_blkno = di_blkno;
2489 *ret_inode_ac = inode_ac;
2491 * orphan_name and orphan_insert are already up to
2492 * date via prepare_orphan_dir
2495 /* Unroll reserve_new_inode* */
2497 ocfs2_free_alloc_context(inode_ac);
2499 /* Unroll orphan dir locking */
2500 mutex_unlock(&orphan_dir->i_mutex);
2501 ocfs2_inode_unlock(orphan_dir, 1);
2505 brelse(orphan_dir_bh);
2510 int ocfs2_create_inode_in_orphan(struct inode *dir,
2512 struct inode **new_inode)
2514 int status, did_quota_inode = 0;
2515 struct inode *inode = NULL;
2516 struct inode *orphan_dir = NULL;
2517 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
2518 struct ocfs2_dinode *di = NULL;
2519 handle_t *handle = NULL;
2520 char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
2521 struct buffer_head *parent_di_bh = NULL;
2522 struct buffer_head *new_di_bh = NULL;
2523 struct ocfs2_alloc_context *inode_ac = NULL;
2524 struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
2525 u64 uninitialized_var(di_blkno), suballoc_loc;
2528 status = ocfs2_inode_lock(dir, &parent_di_bh, 1);
2530 if (status != -ENOENT)
2535 status = ocfs2_prep_new_orphaned_file(dir, parent_di_bh,
2536 orphan_name, &orphan_dir,
2537 &di_blkno, &orphan_insert, &inode_ac);
2539 if (status != -ENOSPC)
2544 inode = ocfs2_get_init_inode(dir, mode);
2545 if (IS_ERR(inode)) {
2546 status = PTR_ERR(inode);
2552 handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb, 0, 0));
2553 if (IS_ERR(handle)) {
2554 status = PTR_ERR(handle);
2560 status = dquot_alloc_inode(inode);
2563 did_quota_inode = 1;
2565 status = ocfs2_claim_new_inode_at_loc(handle, dir, inode_ac,
2567 &suballoc_bit, di_blkno);
2574 /* do the real work now. */
2575 status = __ocfs2_mknod_locked(dir, inode,
2576 0, &new_di_bh, parent_di_bh, handle,
2577 inode_ac, di_blkno, suballoc_loc,
2584 di = (struct ocfs2_dinode *)new_di_bh->b_data;
2585 status = ocfs2_orphan_add(osb, handle, inode, new_di_bh, orphan_name,
2586 &orphan_insert, orphan_dir, false);
2592 /* get open lock so that only nodes can't remove it from orphan dir. */
2593 status = ocfs2_open_lock(inode);
2597 insert_inode_hash(inode);
2599 if (status < 0 && did_quota_inode)
2600 dquot_free_inode(inode);
2602 ocfs2_commit_trans(osb, handle);
2605 /* This was locked for us in ocfs2_prepare_orphan_dir() */
2606 ocfs2_inode_unlock(orphan_dir, 1);
2607 mutex_unlock(&orphan_dir->i_mutex);
2611 if ((status < 0) && inode) {
2617 ocfs2_free_alloc_context(inode_ac);
2624 ocfs2_free_dir_lookup_result(&orphan_insert);
2626 ocfs2_inode_unlock(dir, 1);
2627 brelse(parent_di_bh);
2631 int ocfs2_add_inode_to_orphan(struct ocfs2_super *osb,
2632 struct inode *inode)
2634 char orphan_name[OCFS2_DIO_ORPHAN_PREFIX_LEN + OCFS2_ORPHAN_NAMELEN + 1];
2635 struct inode *orphan_dir_inode = NULL;
2636 struct ocfs2_dir_lookup_result orphan_insert = { NULL, };
2637 struct buffer_head *di_bh = NULL;
2639 handle_t *handle = NULL;
2640 struct ocfs2_dinode *di = NULL;
2642 status = ocfs2_inode_lock(inode, &di_bh, 1);
2648 di = (struct ocfs2_dinode *) di_bh->b_data;
2650 * Another append dio crashed?
2651 * If so, manually recover it first.
2653 if (unlikely(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL))) {
2654 status = ocfs2_truncate_file(inode, di_bh, i_size_read(inode));
2656 if (status != -ENOSPC)
2658 goto bail_unlock_inode;
2661 status = ocfs2_del_inode_from_orphan(osb, inode, di_bh, 0, 0);
2664 goto bail_unlock_inode;
2668 status = ocfs2_prepare_orphan_dir(osb, &orphan_dir_inode,
2669 OCFS2_I(inode)->ip_blkno,
2675 goto bail_unlock_inode;
2678 handle = ocfs2_start_trans(osb,
2679 OCFS2_INODE_ADD_TO_ORPHAN_CREDITS);
2680 if (IS_ERR(handle)) {
2681 status = PTR_ERR(handle);
2682 goto bail_unlock_orphan;
2685 status = ocfs2_orphan_add(osb, handle, inode, di_bh, orphan_name,
2686 &orphan_insert, orphan_dir_inode, true);
2690 ocfs2_commit_trans(osb, handle);
2693 ocfs2_inode_unlock(orphan_dir_inode, 1);
2694 mutex_unlock(&orphan_dir_inode->i_mutex);
2695 iput(orphan_dir_inode);
2697 ocfs2_free_dir_lookup_result(&orphan_insert);
2700 ocfs2_inode_unlock(inode, 1);
2707 int ocfs2_del_inode_from_orphan(struct ocfs2_super *osb,
2708 struct inode *inode, struct buffer_head *di_bh,
2709 int update_isize, loff_t end)
2711 struct inode *orphan_dir_inode = NULL;
2712 struct buffer_head *orphan_dir_bh = NULL;
2713 struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data;
2714 handle_t *handle = NULL;
2717 orphan_dir_inode = ocfs2_get_system_file_inode(osb,
2718 ORPHAN_DIR_SYSTEM_INODE,
2719 le16_to_cpu(di->i_dio_orphaned_slot));
2720 if (!orphan_dir_inode) {
2726 mutex_lock(&orphan_dir_inode->i_mutex);
2727 status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
2729 mutex_unlock(&orphan_dir_inode->i_mutex);
2730 iput(orphan_dir_inode);
2735 handle = ocfs2_start_trans(osb,
2736 OCFS2_INODE_DEL_FROM_ORPHAN_CREDITS);
2737 if (IS_ERR(handle)) {
2738 status = PTR_ERR(handle);
2739 goto bail_unlock_orphan;
2742 BUG_ON(!(di->i_flags & cpu_to_le32(OCFS2_DIO_ORPHANED_FL)));
2744 status = ocfs2_orphan_del(osb, handle, orphan_dir_inode,
2745 inode, orphan_dir_bh, true);
2751 status = ocfs2_journal_access_di(handle,
2754 OCFS2_JOURNAL_ACCESS_WRITE);
2760 di->i_flags &= ~cpu_to_le32(OCFS2_DIO_ORPHANED_FL);
2761 di->i_dio_orphaned_slot = 0;
2764 status = ocfs2_set_inode_size(handle, inode, di_bh, end);
2768 ocfs2_journal_dirty(handle, di_bh);
2771 ocfs2_commit_trans(osb, handle);
2774 ocfs2_inode_unlock(orphan_dir_inode, 1);
2775 mutex_unlock(&orphan_dir_inode->i_mutex);
2776 brelse(orphan_dir_bh);
2777 iput(orphan_dir_inode);
2783 int ocfs2_mv_orphaned_inode_to_new(struct inode *dir,
2784 struct inode *inode,
2785 struct dentry *dentry)
2788 struct buffer_head *parent_di_bh = NULL;
2789 handle_t *handle = NULL;
2790 struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
2791 struct ocfs2_dinode *dir_di, *di;
2792 struct inode *orphan_dir_inode = NULL;
2793 struct buffer_head *orphan_dir_bh = NULL;
2794 struct buffer_head *di_bh = NULL;
2795 struct ocfs2_dir_lookup_result lookup = { NULL, };
2797 trace_ocfs2_mv_orphaned_inode_to_new(dir, dentry,
2798 dentry->d_name.len, dentry->d_name.name,
2799 (unsigned long long)OCFS2_I(dir)->ip_blkno,
2800 (unsigned long long)OCFS2_I(inode)->ip_blkno);
2802 status = ocfs2_inode_lock(dir, &parent_di_bh, 1);
2804 if (status != -ENOENT)
2809 dir_di = (struct ocfs2_dinode *) parent_di_bh->b_data;
2810 if (!dir_di->i_links_count) {
2811 /* can't make a file in a deleted directory. */
2816 status = ocfs2_check_dir_for_entry(dir, dentry->d_name.name,
2817 dentry->d_name.len);
2821 /* get a spot inside the dir. */
2822 status = ocfs2_prepare_dir_for_insert(osb, dir, parent_di_bh,
2823 dentry->d_name.name,
2824 dentry->d_name.len, &lookup);
2830 orphan_dir_inode = ocfs2_get_system_file_inode(osb,
2831 ORPHAN_DIR_SYSTEM_INODE,
2833 if (!orphan_dir_inode) {
2839 mutex_lock(&orphan_dir_inode->i_mutex);
2841 status = ocfs2_inode_lock(orphan_dir_inode, &orphan_dir_bh, 1);
2844 mutex_unlock(&orphan_dir_inode->i_mutex);
2845 iput(orphan_dir_inode);
2849 status = ocfs2_read_inode_block(inode, &di_bh);
2855 handle = ocfs2_start_trans(osb, ocfs2_rename_credits(osb->sb));
2856 if (IS_ERR(handle)) {
2857 status = PTR_ERR(handle);
2863 status = ocfs2_journal_access_di(handle, INODE_CACHE(inode),
2864 di_bh, OCFS2_JOURNAL_ACCESS_WRITE);
2870 status = ocfs2_orphan_del(osb, handle, orphan_dir_inode, inode,
2871 orphan_dir_bh, false);
2877 di = (struct ocfs2_dinode *)di_bh->b_data;
2878 di->i_flags &= ~cpu_to_le32(OCFS2_ORPHANED_FL);
2879 di->i_orphaned_slot = 0;
2880 set_nlink(inode, 1);
2881 ocfs2_set_links_count(di, inode->i_nlink);
2882 ocfs2_update_inode_fsync_trans(handle, inode, 1);
2883 ocfs2_journal_dirty(handle, di_bh);
2885 status = ocfs2_add_entry(handle, dentry, inode,
2886 OCFS2_I(inode)->ip_blkno, parent_di_bh,
2893 status = ocfs2_dentry_attach_lock(dentry, inode,
2894 OCFS2_I(dir)->ip_blkno);
2900 d_instantiate(dentry, inode);
2903 ocfs2_commit_trans(osb, handle);
2905 ocfs2_inode_unlock(orphan_dir_inode, 1);
2906 mutex_unlock(&orphan_dir_inode->i_mutex);
2907 iput(orphan_dir_inode);
2910 ocfs2_inode_unlock(dir, 1);
2913 brelse(parent_di_bh);
2914 brelse(orphan_dir_bh);
2916 ocfs2_free_dir_lookup_result(&lookup);
2924 const struct inode_operations ocfs2_dir_iops = {
2925 .create = ocfs2_create,
2926 .lookup = ocfs2_lookup,
2928 .unlink = ocfs2_unlink,
2929 .rmdir = ocfs2_unlink,
2930 .symlink = ocfs2_symlink,
2931 .mkdir = ocfs2_mkdir,
2932 .mknod = ocfs2_mknod,
2933 .rename = ocfs2_rename,
2934 .setattr = ocfs2_setattr,
2935 .getattr = ocfs2_getattr,
2936 .permission = ocfs2_permission,
2937 .setxattr = generic_setxattr,
2938 .getxattr = generic_getxattr,
2939 .listxattr = ocfs2_listxattr,
2940 .removexattr = generic_removexattr,
2941 .fiemap = ocfs2_fiemap,
2942 .get_acl = ocfs2_iop_get_acl,
2943 .set_acl = ocfs2_iop_set_acl,