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 1.85 2005/03/01 10:34:03 dedekind 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 /* Urgh. Please tell me there's a nicer way of doing these. */
26 #include <linux/version.h>
27 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,48)
28 typedef int mknod_arg_t;
29 #define NAMEI_COMPAT(x) ((void *)x)
31 typedef dev_t mknod_arg_t;
32 #define NAMEI_COMPAT(x) (x)
35 static int jffs2_readdir (struct file *, void *, filldir_t);
37 static int jffs2_create (struct inode *,struct dentry *,int,
39 static struct dentry *jffs2_lookup (struct inode *,struct dentry *,
41 static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
42 static int jffs2_unlink (struct inode *,struct dentry *);
43 static int jffs2_symlink (struct inode *,struct dentry *,const char *);
44 static int jffs2_mkdir (struct inode *,struct dentry *,int);
45 static int jffs2_rmdir (struct inode *,struct dentry *);
46 static int jffs2_mknod (struct inode *,struct dentry *,int,mknod_arg_t);
47 static int jffs2_rename (struct inode *, struct dentry *,
48 struct inode *, struct dentry *);
50 struct file_operations jffs2_dir_operations =
52 .read = generic_read_dir,
53 .readdir = jffs2_readdir,
59 struct inode_operations jffs2_dir_inode_operations =
61 .create = NAMEI_COMPAT(jffs2_create),
62 .lookup = NAMEI_COMPAT(jffs2_lookup),
64 .unlink = jffs2_unlink,
65 .symlink = jffs2_symlink,
69 .rename = jffs2_rename,
70 .setattr = jffs2_setattr,
73 /***********************************************************************/
76 /* We keep the dirent list sorted in increasing order of name hash,
77 and we use the same hash function as the dentries. Makes this
80 static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
83 struct jffs2_inode_info *dir_f;
84 struct jffs2_sb_info *c;
85 struct jffs2_full_dirent *fd = NULL, *fd_list;
87 struct inode *inode = NULL;
89 D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
91 dir_f = JFFS2_INODE_INFO(dir_i);
92 c = JFFS2_SB_INFO(dir_i->i_sb);
96 /* NB: The 2.2 backport will need to explicitly check for '.' and '..' here */
97 for (fd_list = dir_f->dents; fd_list && fd_list->nhash <= target->d_name.hash; fd_list = fd_list->next) {
98 if (fd_list->nhash == target->d_name.hash &&
99 (!fd || fd_list->version > fd->version) &&
100 strlen(fd_list->name) == target->d_name.len &&
101 !strncmp(fd_list->name, target->d_name.name, target->d_name.len)) {
109 inode = iget(dir_i->i_sb, ino);
111 printk(KERN_WARNING "iget() failed for ino #%u\n", ino);
112 return (ERR_PTR(-EIO));
116 d_add(target, inode);
121 /***********************************************************************/
124 static int jffs2_readdir(struct file *filp, void *dirent, filldir_t filldir)
126 struct jffs2_inode_info *f;
127 struct jffs2_sb_info *c;
128 struct inode *inode = filp->f_dentry->d_inode;
129 struct jffs2_full_dirent *fd;
130 unsigned long offset, curofs;
132 D1(printk(KERN_DEBUG "jffs2_readdir() for dir_i #%lu\n", filp->f_dentry->d_inode->i_ino));
134 f = JFFS2_INODE_INFO(inode);
135 c = JFFS2_SB_INFO(inode->i_sb);
137 offset = filp->f_pos;
140 D1(printk(KERN_DEBUG "Dirent 0: \".\", ino #%lu\n", inode->i_ino));
141 if (filldir(dirent, ".", 1, 0, inode->i_ino, DT_DIR) < 0)
146 unsigned long pino = parent_ino(filp->f_dentry);
147 D1(printk(KERN_DEBUG "Dirent 1: \"..\", ino #%lu\n", pino));
148 if (filldir(dirent, "..", 2, 1, pino, DT_DIR) < 0)
155 for (fd = f->dents; fd; fd = fd->next) {
158 /* First loop: curofs = 2; offset = 2 */
159 if (curofs < offset) {
160 D2(printk(KERN_DEBUG "Skipping dirent: \"%s\", ino #%u, type %d, because curofs %ld < offset %ld\n",
161 fd->name, fd->ino, fd->type, curofs, offset));
165 D2(printk(KERN_DEBUG "Skipping deletion dirent \"%s\"\n", fd->name));
169 D2(printk(KERN_DEBUG "Dirent %ld: \"%s\", ino #%u, type %d\n", offset, fd->name, fd->ino, fd->type));
170 if (filldir(dirent, fd->name, strlen(fd->name), offset, fd->ino, fd->type) < 0)
176 filp->f_pos = offset;
180 /***********************************************************************/
183 static int jffs2_create(struct inode *dir_i, struct dentry *dentry, int mode,
184 struct nameidata *nd)
186 struct jffs2_raw_inode *ri;
187 struct jffs2_inode_info *f, *dir_f;
188 struct jffs2_sb_info *c;
192 ri = jffs2_alloc_raw_inode();
196 c = JFFS2_SB_INFO(dir_i->i_sb);
198 D1(printk(KERN_DEBUG "jffs2_create()\n"));
200 inode = jffs2_new_inode(dir_i, mode, ri);
203 D1(printk(KERN_DEBUG "jffs2_new_inode() failed\n"));
204 jffs2_free_raw_inode(ri);
205 return PTR_ERR(inode);
208 inode->i_op = &jffs2_file_inode_operations;
209 inode->i_fop = &jffs2_file_operations;
210 inode->i_mapping->a_ops = &jffs2_file_address_operations;
211 inode->i_mapping->nrpages = 0;
213 f = JFFS2_INODE_INFO(inode);
214 dir_f = JFFS2_INODE_INFO(dir_i);
216 ret = jffs2_do_create(c, dir_f, f, ri,
217 dentry->d_name.name, dentry->d_name.len);
220 make_bad_inode(inode);
222 jffs2_free_raw_inode(ri);
226 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(ri->ctime));
228 jffs2_free_raw_inode(ri);
229 d_instantiate(dentry, inode);
231 D1(printk(KERN_DEBUG "jffs2_create: Created ino #%lu with mode %o, nlink %d(%d). nrpages %ld\n",
232 inode->i_ino, inode->i_mode, inode->i_nlink, f->inocache->nlink, inode->i_mapping->nrpages));
236 /***********************************************************************/
239 static int jffs2_unlink(struct inode *dir_i, struct dentry *dentry)
241 struct jffs2_sb_info *c = JFFS2_SB_INFO(dir_i->i_sb);
242 struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
243 struct jffs2_inode_info *dead_f = JFFS2_INODE_INFO(dentry->d_inode);
246 ret = jffs2_do_unlink(c, dir_f, dentry->d_name.name,
247 dentry->d_name.len, dead_f);
248 if (dead_f->inocache)
249 dentry->d_inode->i_nlink = dead_f->inocache->nlink;
252 /***********************************************************************/
255 static int jffs2_link (struct dentry *old_dentry, struct inode *dir_i, struct dentry *dentry)
257 struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dentry->d_inode->i_sb);
258 struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
259 struct jffs2_inode_info *dir_f = JFFS2_INODE_INFO(dir_i);
263 /* Don't let people make hard links to bad inodes. */
267 if (S_ISDIR(old_dentry->d_inode->i_mode))
270 /* XXX: This is ugly */
271 type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
272 if (!type) type = DT_REG;
274 ret = jffs2_do_link(c, dir_f, f->inocache->ino, type, dentry->d_name.name, dentry->d_name.len);
278 old_dentry->d_inode->i_nlink = ++f->inocache->nlink;
280 d_instantiate(dentry, old_dentry->d_inode);
281 atomic_inc(&old_dentry->d_inode->i_count);
286 /***********************************************************************/
288 static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char *target)
290 struct jffs2_inode_info *f, *dir_f;
291 struct jffs2_sb_info *c;
293 struct jffs2_raw_inode *ri;
294 struct jffs2_raw_dirent *rd;
295 struct jffs2_full_dnode *fn;
296 struct jffs2_full_dirent *fd;
298 uint32_t alloclen, phys_ofs;
299 int ret, targetlen = strlen(target);
301 /* FIXME: If you care. We'd need to use frags for the target
302 if it grows much more than this */
306 ri = jffs2_alloc_raw_inode();
311 c = JFFS2_SB_INFO(dir_i->i_sb);
313 /* Try to reserve enough space for both node and dirent.
314 * Just the node will do for now, though
316 namelen = dentry->d_name.len;
317 ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &phys_ofs, &alloclen, ALLOC_NORMAL);
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->dents field to store the target path. */
358 f->dents = 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->dents, target, targetlen + 1);
368 D1(printk(KERN_DEBUG "jffs2_symlink: symlink's target '%s' cached\n", (char *)f->dents));
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, ALLOC_NORMAL);
380 jffs2_clear_inode(inode);
384 rd = jffs2_alloc_raw_dirent();
386 /* Argh. Now we treat it like a normal delete */
387 jffs2_complete_reservation(c);
388 jffs2_clear_inode(inode);
392 dir_f = JFFS2_INODE_INFO(dir_i);
395 rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
396 rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
397 rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
398 rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
400 rd->pino = cpu_to_je32(dir_i->i_ino);
401 rd->version = cpu_to_je32(++dir_f->highest_version);
402 rd->ino = cpu_to_je32(inode->i_ino);
403 rd->mctime = cpu_to_je32(get_seconds());
406 rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
407 rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
409 fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
412 /* dirent failed to write. Delete the inode normally
413 as if it were the final unlink() */
414 jffs2_complete_reservation(c);
415 jffs2_free_raw_dirent(rd);
417 jffs2_clear_inode(inode);
421 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
423 jffs2_free_raw_dirent(rd);
425 /* Link the fd into the inode's list, obsoleting an old
427 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
430 jffs2_complete_reservation(c);
432 d_instantiate(dentry, inode);
437 static int jffs2_mkdir (struct inode *dir_i, struct dentry *dentry, int mode)
439 struct jffs2_inode_info *f, *dir_f;
440 struct jffs2_sb_info *c;
442 struct jffs2_raw_inode *ri;
443 struct jffs2_raw_dirent *rd;
444 struct jffs2_full_dnode *fn;
445 struct jffs2_full_dirent *fd;
447 uint32_t alloclen, phys_ofs;
452 ri = jffs2_alloc_raw_inode();
456 c = JFFS2_SB_INFO(dir_i->i_sb);
458 /* Try to reserve enough space for both node and dirent.
459 * Just the node will do for now, though
461 namelen = dentry->d_name.len;
462 ret = jffs2_reserve_space(c, sizeof(*ri), &phys_ofs, &alloclen, ALLOC_NORMAL);
465 jffs2_free_raw_inode(ri);
469 inode = jffs2_new_inode(dir_i, mode, ri);
472 jffs2_free_raw_inode(ri);
473 jffs2_complete_reservation(c);
474 return PTR_ERR(inode);
477 inode->i_op = &jffs2_dir_inode_operations;
478 inode->i_fop = &jffs2_dir_operations;
479 /* Directories get nlink 2 at start */
482 f = JFFS2_INODE_INFO(inode);
484 ri->data_crc = cpu_to_je32(0);
485 ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
487 fn = jffs2_write_dnode(c, f, ri, NULL, 0, phys_ofs, ALLOC_NORMAL);
489 jffs2_free_raw_inode(ri);
492 /* Eeek. Wave bye bye */
494 jffs2_complete_reservation(c);
495 jffs2_clear_inode(inode);
498 /* No data here. Only a metadata node, which will be
499 obsoleted by the first data write
504 jffs2_complete_reservation(c);
505 ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
508 jffs2_clear_inode(inode);
512 rd = jffs2_alloc_raw_dirent();
514 /* Argh. Now we treat it like a normal delete */
515 jffs2_complete_reservation(c);
516 jffs2_clear_inode(inode);
520 dir_f = JFFS2_INODE_INFO(dir_i);
523 rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
524 rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
525 rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
526 rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
528 rd->pino = cpu_to_je32(dir_i->i_ino);
529 rd->version = cpu_to_je32(++dir_f->highest_version);
530 rd->ino = cpu_to_je32(inode->i_ino);
531 rd->mctime = cpu_to_je32(get_seconds());
534 rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
535 rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
537 fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
540 /* dirent failed to write. Delete the inode normally
541 as if it were the final unlink() */
542 jffs2_complete_reservation(c);
543 jffs2_free_raw_dirent(rd);
545 jffs2_clear_inode(inode);
549 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
552 jffs2_free_raw_dirent(rd);
554 /* Link the fd into the inode's list, obsoleting an old
556 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
559 jffs2_complete_reservation(c);
561 d_instantiate(dentry, inode);
565 static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
567 struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
568 struct jffs2_full_dirent *fd;
571 for (fd = f->dents ; fd; fd = fd->next) {
575 ret = jffs2_unlink(dir_i, dentry);
581 static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, mknod_arg_t rdev)
583 struct jffs2_inode_info *f, *dir_f;
584 struct jffs2_sb_info *c;
586 struct jffs2_raw_inode *ri;
587 struct jffs2_raw_dirent *rd;
588 struct jffs2_full_dnode *fn;
589 struct jffs2_full_dirent *fd;
593 uint32_t alloclen, phys_ofs;
596 if (!old_valid_dev(rdev))
599 ri = jffs2_alloc_raw_inode();
603 c = JFFS2_SB_INFO(dir_i->i_sb);
605 if (S_ISBLK(mode) || S_ISCHR(mode)) {
606 dev = cpu_to_je16(old_encode_dev(rdev));
607 devlen = sizeof(dev);
610 /* Try to reserve enough space for both node and dirent.
611 * Just the node will do for now, though
613 namelen = dentry->d_name.len;
614 ret = jffs2_reserve_space(c, sizeof(*ri) + devlen, &phys_ofs, &alloclen, ALLOC_NORMAL);
617 jffs2_free_raw_inode(ri);
621 inode = jffs2_new_inode(dir_i, mode, ri);
624 jffs2_free_raw_inode(ri);
625 jffs2_complete_reservation(c);
626 return PTR_ERR(inode);
628 inode->i_op = &jffs2_file_inode_operations;
629 init_special_inode(inode, inode->i_mode, rdev);
631 f = JFFS2_INODE_INFO(inode);
633 ri->dsize = ri->csize = cpu_to_je32(devlen);
634 ri->totlen = cpu_to_je32(sizeof(*ri) + devlen);
635 ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
637 ri->compr = JFFS2_COMPR_NONE;
638 ri->data_crc = cpu_to_je32(crc32(0, &dev, devlen));
639 ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
641 fn = jffs2_write_dnode(c, f, ri, (char *)&dev, devlen, phys_ofs, ALLOC_NORMAL);
643 jffs2_free_raw_inode(ri);
646 /* Eeek. Wave bye bye */
648 jffs2_complete_reservation(c);
649 jffs2_clear_inode(inode);
652 /* No data here. Only a metadata node, which will be
653 obsoleted by the first data write
658 jffs2_complete_reservation(c);
659 ret = jffs2_reserve_space(c, sizeof(*rd)+namelen, &phys_ofs, &alloclen, ALLOC_NORMAL);
662 jffs2_clear_inode(inode);
666 rd = jffs2_alloc_raw_dirent();
668 /* Argh. Now we treat it like a normal delete */
669 jffs2_complete_reservation(c);
670 jffs2_clear_inode(inode);
674 dir_f = JFFS2_INODE_INFO(dir_i);
677 rd->magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
678 rd->nodetype = cpu_to_je16(JFFS2_NODETYPE_DIRENT);
679 rd->totlen = cpu_to_je32(sizeof(*rd) + namelen);
680 rd->hdr_crc = cpu_to_je32(crc32(0, rd, sizeof(struct jffs2_unknown_node)-4));
682 rd->pino = cpu_to_je32(dir_i->i_ino);
683 rd->version = cpu_to_je32(++dir_f->highest_version);
684 rd->ino = cpu_to_je32(inode->i_ino);
685 rd->mctime = cpu_to_je32(get_seconds());
688 /* XXX: This is ugly. */
689 rd->type = (mode & S_IFMT) >> 12;
691 rd->node_crc = cpu_to_je32(crc32(0, rd, sizeof(*rd)-8));
692 rd->name_crc = cpu_to_je32(crc32(0, dentry->d_name.name, namelen));
694 fd = jffs2_write_dirent(c, dir_f, rd, dentry->d_name.name, namelen, phys_ofs, ALLOC_NORMAL);
697 /* dirent failed to write. Delete the inode normally
698 as if it were the final unlink() */
699 jffs2_complete_reservation(c);
700 jffs2_free_raw_dirent(rd);
702 jffs2_clear_inode(inode);
706 dir_i->i_mtime = dir_i->i_ctime = ITIME(je32_to_cpu(rd->mctime));
708 jffs2_free_raw_dirent(rd);
710 /* Link the fd into the inode's list, obsoleting an old
712 jffs2_add_fd_to_list(c, fd, &dir_f->dents);
715 jffs2_complete_reservation(c);
717 d_instantiate(dentry, inode);
722 static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry,
723 struct inode *new_dir_i, struct dentry *new_dentry)
726 struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb);
727 struct jffs2_inode_info *victim_f = NULL;
730 /* The VFS will check for us and prevent trying to rename a
731 * file over a directory and vice versa, but if it's a directory,
732 * the VFS can't check whether the victim is empty. The filesystem
733 * needs to do that for itself.
735 if (new_dentry->d_inode) {
736 victim_f = JFFS2_INODE_INFO(new_dentry->d_inode);
737 if (S_ISDIR(new_dentry->d_inode->i_mode)) {
738 struct jffs2_full_dirent *fd;
740 down(&victim_f->sem);
741 for (fd = victim_f->dents; fd; fd = fd->next) {
751 /* XXX: We probably ought to alloc enough space for
752 both nodes at the same time. Writing the new link,
753 then getting -ENOSPC, is quite bad :)
756 /* Make a hard link */
758 /* XXX: This is ugly */
759 type = (old_dentry->d_inode->i_mode & S_IFMT) >> 12;
760 if (!type) type = DT_REG;
762 ret = jffs2_do_link(c, JFFS2_INODE_INFO(new_dir_i),
763 old_dentry->d_inode->i_ino, type,
764 new_dentry->d_name.name, new_dentry->d_name.len);
770 /* There was a victim. Kill it off nicely */
771 new_dentry->d_inode->i_nlink--;
772 /* Don't oops if the victim was a dirent pointing to an
773 inode which didn't exist. */
774 if (victim_f->inocache) {
775 down(&victim_f->sem);
776 victim_f->inocache->nlink--;
781 /* If it was a directory we moved, and there was no victim,
782 increase i_nlink on its new parent */
783 if (S_ISDIR(old_dentry->d_inode->i_mode) && !victim_f)
784 new_dir_i->i_nlink++;
786 /* Unlink the original */
787 ret = jffs2_do_unlink(c, JFFS2_INODE_INFO(old_dir_i),
788 old_dentry->d_name.name, old_dentry->d_name.len, NULL);
790 /* We don't touch inode->i_nlink */
793 /* Oh shit. We really ought to make a single node which can do both atomically */
794 struct jffs2_inode_info *f = JFFS2_INODE_INFO(old_dentry->d_inode);
796 old_dentry->d_inode->i_nlink++;
798 f->inocache->nlink++;
801 printk(KERN_NOTICE "jffs2_rename(): Link succeeded, unlink failed (err %d). You now have a hard link\n", ret);
802 /* Might as well let the VFS know */
803 d_instantiate(new_dentry, old_dentry->d_inode);
804 atomic_inc(&old_dentry->d_inode->i_count);
808 if (S_ISDIR(old_dentry->d_inode->i_mode))
809 old_dir_i->i_nlink--;