2 * JFFS2 -- Journalling Flash File System, Version 2.
4 * Copyright (C) 2001-2003 Red Hat, Inc.
6 * Created by David Woodhouse <dwmw2@infradead.org>
8 * For licensing information, see the file 'LICENCE' in this directory.
10 * $Id: dir.c,v 1.90 2005/11/07 11:14:39 gleixner Exp $
14 #include <linux/kernel.h>
15 #include <linux/slab.h>
16 #include <linux/sched.h>
18 #include <linux/crc32.h>
19 #include <linux/jffs2.h>
20 #include <linux/jffs2_fs_i.h>
21 #include <linux/jffs2_fs_sb.h>
22 #include <linux/time.h>
25 static int jffs2_readdir (struct file *, void *, filldir_t);
27 static int jffs2_create (struct inode *,struct dentry *,int,
29 static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
31 static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
32 static int jffs2_unlink (struct inode *,struct dentry *);
33 static int jffs2_symlink (struct inode *,struct dentry *,const char *);
34 static int jffs2_mkdir (struct inode *,struct dentry *,int);
35 static int jffs2_rmdir (struct inode *,struct dentry *);
36 static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t);
37 static int jffs2_rename (struct inode *, struct dentry *,
38 struct inode *, struct dentry *);
40 const struct file_operations jffs2_dir_operations =
42 .read = generic_read_dir,
43 .readdir = jffs2_readdir,
49 struct inode_operations jffs2_dir_inode_operations =
51 .create = jffs2_create,
52 .lookup = jffs2_lookup,
54 .unlink = jffs2_unlink,
55 .symlink = jffs2_symlink,
59 .rename = jffs2_rename,
60 .setattr = jffs2_setattr,
63 /***********************************************************************/
66 /* We keep the dirent list sorted in increasing order of name hash,
67 and we use the same hash function as the dentries. Makes this
70 static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
73 struct jffs2_inode_info *dir_f;
74 struct jffs2_sb_info *c;
75 struct jffs2_full_dirent *fd = NULL, *fd_list;
77 struct inode *inode = NULL;
79 D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
81 if (target->d_name.len > JFFS2_MAX_NAME_LEN)
82 return ERR_PTR(-ENAMETOOLONG);
84 dir_f = JFFS2_INODE_INFO(dir_i);
85 c = JFFS2_SB_INFO(dir_i->i_sb);
89 /* NB: The 2.2 backport will need to explicitly check for '.' and '..' here */
90 for (fd_list = dir_f->dents; fd_list && fd_list->nhash <= target->d_name.hash; fd_list = fd_list->next) {
91 if (fd_list->nhash == target->d_name.hash &&
92 (!fd || fd_list->version > fd->version) &&
93 strlen(fd_list->name) == target->d_name.len &&
94 !strncmp(fd_list->name, target->d_name.name, target->d_name.len)) {
102 inode = iget(dir_i->i_sb, ino);
104 printk(KERN_WARNING "iget() failed for ino #%u\n", ino);
105 return (ERR_PTR(-EIO));
109 d_add(target, inode);
114 /***********************************************************************/
117 static int jffs2_readdir(struct file *filp, void *dirent, filldir_t filldir)
119 struct jffs2_inode_info *f;
120 struct jffs2_sb_info *c;
121 struct inode *inode = filp->f_dentry->d_inode;
122 struct jffs2_full_dirent *fd;
123 unsigned long offset, curofs;
125 D1(printk(KERN_DEBUG "jffs2_readdir() for dir_i #%lu\n", filp->f_dentry->d_inode->i_ino));
127 f = JFFS2_INODE_INFO(inode);
128 c = JFFS2_SB_INFO(inode->i_sb);
130 offset = filp->f_pos;
133 D1(printk(KERN_DEBUG "Dirent 0: \".\", ino #%lu\n", inode->i_ino));
134 if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
139 unsigned long pino = parent_ino(filp->f_dentry);
140 D1(printk(KERN_DEBUG "Dirent 1: \"..\", ino #%lu\n", pino));
141 if (filldir(dirent, "..", 2, 1, pino, DT_DIR) < 0)
148 for (fd = f->dents; fd; fd = fd->next) {
151 /* First loop: curofs = 2; offset = 2 */
152 if (curofs < offset) {
153 D2(printk(KERN_DEBUG "Skipping dirent: \"%s\", ino #%u, type %d, because curofs %ld < offset %ld\n",
154 fd->name, fd->ino, fd->type, curofs, offset));
158 D2(printk(KERN_DEBUG "Skipping deletion dirent \"%s\"\n", fd->name));
162 D2(printk(KERN_DEBUG "Dirent %ld: \"%s\", ino #%u, type %d\n", offset, fd->name, fd->ino, fd->type));
163 if (filldir(dirent, fd->name, strlen(fd->name), offset, fd->ino, fd->type) < 0)
169 filp->f_pos = offset;
173 /***********************************************************************/
176 static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
177 struct nameidata *nd)
179 struct jffs2_raw_inode *ri;
180 struct jffs2_inode_info *f, *dir_f;
181 struct jffs2_sb_info *c;
185 ri = jffs2_alloc_raw_inode();
189 c = JFFS2_SB_INFO(dir_i->i_sb);
191 D1(printk(KERN_DEBUG "jffs2_create()\n"));
193 inode = jffs2_new_inode(dir_i, mode, ri);
196 D1(printk(KERN_DEBUG "jffs2_new_inode() failed\n"));
197 jffs2_free_raw_inode(ri);
198 return PTR_ERR(inode);
201 inode->i_op = &jffs2_file_inode_operations;
202 inode->i_fop = &jffs2_file_operations;
203 inode->i_mapping->a_ops = &jffs2_file_address_operations;
204 inode->i_mapping->nrpages = 0;
206 f = JFFS2_INODE_INFO(inode);
207 dir_f = JFFS2_INODE_INFO(dir_i);
209 ret = jffs2_do_create(c, dir_f, f, ri,
210 dentry->d_name.name, dentry->d_name.len);
213 make_bad_inode(inode);
215 jffs2_free_raw_inode(ri);
219 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(ri->ctime));
221 jffs2_free_raw_inode(ri);
222 d_instantiate(dentry, inode);
224 D1(printk(KERN_DEBUG "jffs2_create: Created ino #%lu with mode %o, nlink %d(%d). nrpages %ld\n",
225 inode->i_ino, inode->i_mode, inode->i_nlink, f->inocache->nlink, inode->i_mapping->nrpages));
229 /***********************************************************************/
232 static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
234 struct jffs2_sb_info *c = JFFS2_SB_INFO(dir_i->i_sb);
235 struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
236 struct jffs2_inode_info *dead_f = JFFS2_INODE_INFO(dentry->d_inode);
238 uint32_t now = get_seconds();
240 ret = jffs2_do_unlink(c, dir_f, dentry->d_name.name,
241 dentry->d_name.len, dead_f, now);
242 if (dead_f->inocache)
243 dentry->d_inode->i_nlink = dead_f->inocache->nlink;
245 dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
248 /***********************************************************************/
251 static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry)
253 struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dentry->d_inode->i_sb);
254 struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
255 struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
260 /* Don't let people make hard links to bad inodes. */
264 if (S_ISDIR(old_dentry->d_inode->i_mode))
267 /* XXX: This is ugly */
268 type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
269 if (!type) type = DT_REG;
272 ret = jffs2_do_link(c, dir_f, f->inocache->ino, type, dentry->d_name.name, dentry->d_name.len, now);
276 old_dentry->d_inode->i_nlink = ++f->inocache->nlink;
278 d_instantiate(dentry, old_dentry->d_inode);
279 dir_i->i_mtime = dir_i->i_ctime = ITIME(now);
280 atomic_inc(&old_dentry->d_inode->i_count);
285 /***********************************************************************/
287 static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char *target)
289 struct jffs2_inode_info *f, *dir_f;
290 struct jffs2_sb_info *c;
292 struct jffs2_raw_inode *ri;
293 struct jffs2_raw_dirent *rd;
294 struct jffs2_full_dnode *fn;
295 struct jffs2_full_dirent *fd;
297 uint32_t alloclen, phys_ofs;
298 int ret, targetlen = strlen(target);
300 /* FIXME: If you care. We'd need to use frags for the target
301 if it grows much more than this */
305 ri = jffs2_alloc_raw_inode();
310 c = JFFS2_SB_INFO(dir_i->i_sb);
312 /* Try to reserve enough space for both node and dirent.
313 * Just the node will do for now, though
315 namelen = dentry->d_name.len;
316 ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &phys_ofs, &alloclen,
317 ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
320 jffs2_free_raw_inode(ri);
324 inode = jffs2_new_inode(dir_i, S_IFLNK | S_IRWXUGO, ri);
327 jffs2_free_raw_inode(ri);
328 jffs2_complete_reservation(c);
329 return PTR_ERR(inode);
332 inode->i_op = &jffs2_symlink_inode_operations;
334 f = JFFS2_INODE_INFO(inode);
336 inode->i_size = targetlen;
337 ri->isize = ri->dsize = ri->csize = cpu_to_je32(inode->i_size);
338 ri->totlen = cpu_to_je32(sizeof(*ri) + inode->i_size);
339 ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
341 ri->compr = JFFS2_COMPR_NONE;
342 ri->data_crc = cpu_to_je32(crc32(0, target, targetlen));
343 ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
345 fn = jffs2_write_dnode(c, f, ri, target, targetlen, phys_ofs, ALLOC_NORMAL);
347 jffs2_free_raw_inode(ri);
350 /* Eeek. Wave bye bye */
352 jffs2_complete_reservation(c);
353 jffs2_clear_inode(inode);
357 /* We use f->target field to store the target path. */
358 f->target = kmalloc(targetlen + 1, GFP_KERNEL);
360 printk(KERN_WARNING "Can't allocate %d bytes of memory\n", targetlen + 1);
362 jffs2_complete_reservation(c);
363 jffs2_clear_inode(inode);
367 memcpy(f->target, target, targetlen + 1);
368 D1(printk(KERN_DEBUG "jffs2_symlink: symlink's target '%s' cached\n", (char *)f->target));
370 /* No data here. Only a metadata node, which will be
371 obsoleted by the first data write
376 jffs2_complete_reservation(c);
377 ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
378 ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
381 jffs2_clear_inode(inode);
385 rd = jffs2_alloc_raw_dirent();
387 /* Argh. Now we treat it like a normal delete */
388 jffs2_complete_reservation(c);
389 jffs2_clear_inode(inode);
393 dir_f = JFFS2_INODE_INFO(dir_i);
396 rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
397 rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
398 rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
399 rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
401 rd->pino = cpu_to_je32(dir_i->i_ino);
402 rd->version = cpu_to_je32(++dir_f->highest_version);
403 rd->ino = cpu_to_je32(inode->i_ino);
404 rd->mctime = cpu_to_je32(get_seconds());
407 rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
408 rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
410 fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
413 /* dirent failed to write. Delete the inode normally
414 as if it were the final unlink() */
415 jffs2_complete_reservation(c);
416 jffs2_free_raw_dirent(rd);
418 jffs2_clear_inode(inode);
422 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
424 jffs2_free_raw_dirent(rd);
426 /* Link the fd into the inode's list, obsoleting an old
428 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
431 jffs2_complete_reservation(c);
433 d_instantiate(dentry, inode);
438 static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
440 struct jffs2_inode_info *f, *dir_f;
441 struct jffs2_sb_info *c;
443 struct jffs2_raw_inode *ri;
444 struct jffs2_raw_dirent *rd;
445 struct jffs2_full_dnode *fn;
446 struct jffs2_full_dirent *fd;
448 uint32_t alloclen, phys_ofs;
453 ri = jffs2_alloc_raw_inode();
457 c = JFFS2_SB_INFO(dir_i->i_sb);
459 /* Try to reserve enough space for both node and dirent.
460 * Just the node will do for now, though
462 namelen = dentry->d_name.len;
463 ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL,
464 JFFS2_SUMMARY_INODE_SIZE);
467 jffs2_free_raw_inode(ri);
471 inode = jffs2_new_inode(dir_i, mode, ri);
474 jffs2_free_raw_inode(ri);
475 jffs2_complete_reservation(c);
476 return PTR_ERR(inode);
479 inode->i_op = &jffs2_dir_inode_operations;
480 inode->i_fop = &jffs2_dir_operations;
481 /* Directories get nlink 2 at start */
484 f = JFFS2_INODE_INFO(inode);
486 ri->data_crc = cpu_to_je32(0);
487 ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
489 fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
491 jffs2_free_raw_inode(ri);
494 /* Eeek. Wave bye bye */
496 jffs2_complete_reservation(c);
497 jffs2_clear_inode(inode);
500 /* No data here. Only a metadata node, which will be
501 obsoleted by the first data write
506 jffs2_complete_reservation(c);
507 ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
508 ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
511 jffs2_clear_inode(inode);
515 rd = jffs2_alloc_raw_dirent();
517 /* Argh. Now we treat it like a normal delete */
518 jffs2_complete_reservation(c);
519 jffs2_clear_inode(inode);
523 dir_f = JFFS2_INODE_INFO(dir_i);
526 rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
527 rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
528 rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
529 rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
531 rd->pino = cpu_to_je32(dir_i->i_ino);
532 rd->version = cpu_to_je32(++dir_f->highest_version);
533 rd->ino = cpu_to_je32(inode->i_ino);
534 rd->mctime = cpu_to_je32(get_seconds());
537 rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
538 rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
540 fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
543 /* dirent failed to write. Delete the inode normally
544 as if it were the final unlink() */
545 jffs2_complete_reservation(c);
546 jffs2_free_raw_dirent(rd);
548 jffs2_clear_inode(inode);
552 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
555 jffs2_free_raw_dirent(rd);
557 /* Link the fd into the inode's list, obsoleting an old
559 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
562 jffs2_complete_reservation(c);
564 d_instantiate(dentry, inode);
568 static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
570 struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
571 struct jffs2_full_dirent *fd;
574 for (fd = f->dents ; fd; fd = fd->next) {
578 ret = jffs2_unlink(dir_i, dentry);
584 static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, dev_t rdev)
586 struct jffs2_inode_info *f, *dir_f;
587 struct jffs2_sb_info *c;
589 struct jffs2_raw_inode *ri;
590 struct jffs2_raw_dirent *rd;
591 struct jffs2_full_dnode *fn;
592 struct jffs2_full_dirent *fd;
596 uint32_t alloclen, phys_ofs;
599 if (!old_valid_dev(rdev))
602 ri = jffs2_alloc_raw_inode();
606 c = JFFS2_SB_INFO(dir_i->i_sb);
608 if (S_ISBLK(mode) || S_ISCHR(mode)) {
609 dev = cpu_to_je16(old_encode_dev(rdev));
610 devlen = sizeof(dev);
613 /* Try to reserve enough space for both node and dirent.
614 * Just the node will do for now, though
616 namelen = dentry->d_name.len;
617 ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &phys_ofs, &alloclen,
618 ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
621 jffs2_free_raw_inode(ri);
625 inode = jffs2_new_inode(dir_i, mode, ri);
628 jffs2_free_raw_inode(ri);
629 jffs2_complete_reservation(c);
630 return PTR_ERR(inode);
632 inode->i_op = &jffs2_file_inode_operations;
633 init_special_inode(inode, inode->i_mode, rdev);
635 f = JFFS2_INODE_INFO(inode);
637 ri->dsize = ri->csize = cpu_to_je32(devlen);
638 ri->totlen = cpu_to_je32(sizeof(*ri) + devlen);
639 ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
641 ri->compr = JFFS2_COMPR_NONE;
642 ri->data_crc = cpu_to_je32(crc32(0, &dev, devlen));
643 ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
645 fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, phys_ofs, ALLOC_NORMAL);
647 jffs2_free_raw_inode(ri);
650 /* Eeek. Wave bye bye */
652 jffs2_complete_reservation(c);
653 jffs2_clear_inode(inode);
656 /* No data here. Only a metadata node, which will be
657 obsoleted by the first data write
662 jffs2_complete_reservation(c);
663 ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen,
664 ALLOC_NORMAL, JFFS2_SUMMARY_DIRENT_SIZE(namelen));
667 jffs2_clear_inode(inode);
671 rd = jffs2_alloc_raw_dirent();
673 /* Argh. Now we treat it like a normal delete */
674 jffs2_complete_reservation(c);
675 jffs2_clear_inode(inode);
679 dir_f = JFFS2_INODE_INFO(dir_i);
682 rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
683 rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
684 rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
685 rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
687 rd->pino = cpu_to_je32(dir_i->i_ino);
688 rd->version = cpu_to_je32(++dir_f->highest_version);
689 rd->ino = cpu_to_je32(inode->i_ino);
690 rd->mctime = cpu_to_je32(get_seconds());
693 /* XXX: This is ugly. */
694 rd->type = (mode & S_IFMT) >> 12;
696 rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
697 rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
699 fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
702 /* dirent failed to write. Delete the inode normally
703 as if it were the final unlink() */
704 jffs2_complete_reservation(c);
705 jffs2_free_raw_dirent(rd);
707 jffs2_clear_inode(inode);
711 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
713 jffs2_free_raw_dirent(rd);
715 /* Link the fd into the inode's list, obsoleting an old
717 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
720 jffs2_complete_reservation(c);
722 d_instantiate(dentry, inode);
727 static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
728 struct inode *new_dir_i, struct dentry *new_dentry)
731 struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
732 struct jffs2_inode_info *victim_f = NULL;
736 /* The VFS will check for us and prevent trying to rename a
737 * file over a directory and vice versa, but if it's a directory,
738 * the VFS can't check whether the victim is empty. The filesystem
739 * needs to do that for itself.
741 if (new_dentry->d_inode) {
742 victim_f = JFFS2_INODE_INFO(new_dentry->d_inode);
743 if (S_ISDIR(new_dentry->d_inode->i_mode)) {
744 struct jffs2_full_dirent *fd;
746 down(&victim_f->sem);
747 for (fd = victim_f->dents; fd; fd = fd->next) {
757 /* XXX: We probably ought to alloc enough space for
758 both nodes at the same time. Writing the new link,
759 then getting -ENOSPC, is quite bad :)
762 /* Make a hard link */
764 /* XXX: This is ugly */
765 type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
766 if (!type) type = DT_REG;
769 ret = jffs2_do_link(c, JFFS2_INODE_INFO(new_dir_i),
770 old_dentry->d_inode->i_ino, type,
771 new_dentry->d_name.name, new_dentry->d_name.len, now);
777 /* There was a victim. Kill it off nicely */
778 new_dentry->d_inode->i_nlink--;
779 /* Don't oops if the victim was a dirent pointing to an
780 inode which didn't exist. */
781 if (victim_f->inocache) {
782 down(&victim_f->sem);
783 victim_f->inocache->nlink--;
788 /* If it was a directory we moved, and there was no victim,
789 increase i_nlink on its new parent */
790 if (S_ISDIR(old_dentry->d_inode->i_mode) && !victim_f)
791 new_dir_i->i_nlink++;
793 /* Unlink the original */
794 ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
795 old_dentry->d_name.name, old_dentry->d_name.len, NULL, now);
797 /* We don't touch inode->i_nlink */
800 /* Oh shit. We really ought to make a single node which can do both atomically */
801 struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
803 old_dentry->d_inode->i_nlink++;
805 f->inocache->nlink++;
808 printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret);
809 /* Might as well let the VFS know */
810 d_instantiate(new_dentry, old_dentry->d_inode);
811 atomic_inc(&old_dentry->d_inode->i_count);
812 new_dir_i->i_mtime = new_dir_i->i_ctime = ITIME(now);
816 if (S_ISDIR(old_dentry->d_inode->i_mode))
817 old_dir_i->i_nlink--;
819 new_dir_i->i_mtime = new_dir_i->i_ctime = old_dir_i->i_mtime = old_dir_i->i_ctime = ITIME(now);