[linux-2.6-block.git] / fs / ufs / namei.c

/*
 * linux/fs/ufs/namei.c
 *
 * Migration to usage of "page cache" on May 2006 by
 * Evgeniy Dushistov <dushistov@mail.ru> based on ext2 code base.
 *
 * Copyright (C) 1998
 * Daniel Pirkl <daniel.pirkl@email.cz>
 * Charles University, Faculty of Mathematics and Physics
 *
 *  from
 *
 *  linux/fs/ext2/namei.c
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card (card@masi.ibp.fr)
 * Laboratoire MASI - Institut Blaise Pascal
 * Universite Pierre et Marie Curie (Paris VI)
 *
 *  from
 *
 *  linux/fs/minix/namei.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *
 *  Big-endian to little-endian byte-swapping/bitmaps by
 *        David S. Miller (davem@caip.rutgers.edu), 1995
 */

#include <linux/time.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/quotaops.h>

#include "ufs_fs.h"
#include "ufs.h"
#include "util.h"

static inline int ufs_add_nondir(struct dentry *dentry, struct inode *inode)
{
	int err = ufs_add_link(dentry, inode);
	if (!err) {
		d_instantiate(dentry, inode);
		return 0;
	}
	inode_dec_link_count(inode);
	iput(inode);
	return err;
}

static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
	struct inode * inode = NULL;
	ino_t ino;
	
	if (dentry->d_name.len > UFS_MAXNAMLEN)
		return ERR_PTR(-ENAMETOOLONG);

	lock_kernel();
	ino = ufs_inode_by_name(dir, &dentry->d_name);
	if (ino) {
		inode = ufs_iget(dir->i_sb, ino);
		if (IS_ERR(inode)) {
			unlock_kernel();
			return ERR_CAST(inode);
		}
	}
	unlock_kernel();
	d_add(dentry, inode);
	return NULL;
}

/*
 * By the time this is called, we already have created
 * the directory cache entry for the new file, but it
 * is so far negative - it has no inode.
 *
 * If the create succeeds, we fill in the inode information
 * with d_instantiate(). 
 */
static int ufs_create (struct inode * dir, struct dentry * dentry, int mode,
		struct nameidata *nd)
{
	struct inode *inode;
	int err;

	UFSD("BEGIN\n");

	dquot_initialize(dir);

	inode = ufs_new_inode(dir, mode);
	err = PTR_ERR(inode);

	if (!IS_ERR(inode)) {
		inode->i_op = &ufs_file_inode_operations;
		inode->i_fop = &ufs_file_operations;
		inode->i_mapping->a_ops = &ufs_aops;
		mark_inode_dirty(inode);
		lock_kernel();
		err = ufs_add_nondir(dentry, inode);
		unlock_kernel();
	}
	UFSD("END: err=%d\n", err);
	return err;
}

static int ufs_mknod (struct inode * dir, struct dentry *dentry, int mode, dev_t rdev)
{
	struct inode *inode;
	int err;

	if (!old_valid_dev(rdev))
		return -EINVAL;

	dquot_initialize(dir);

	inode = ufs_new_inode(dir, mode);
	err = PTR_ERR(inode);
	if (!IS_ERR(inode)) {
		init_special_inode(inode, mode, rdev);
		ufs_set_inode_dev(inode->i_sb, UFS_I(inode), rdev);
		mark_inode_dirty(inode);
		lock_kernel();
		err = ufs_add_nondir(dentry, inode);
		unlock_kernel();
	}
	return err;
}

static int ufs_symlink (struct inode * dir, struct dentry * dentry,
	const char * symname)
{
	struct super_block * sb = dir->i_sb;
	int err = -ENAMETOOLONG;
	unsigned l = strlen(symname)+1;
	struct inode * inode;

	if (l > sb->s_blocksize)
		goto out_notlocked;

	dquot_initialize(dir);

	lock_kernel();
	inode = ufs_new_inode(dir, S_IFLNK | S_IRWXUGO);
	err = PTR_ERR(inode);
	if (IS_ERR(inode))
		goto out;

	if (l > UFS_SB(sb)->s_uspi->s_maxsymlinklen) {
		/* slow symlink */
		inode->i_op = &page_symlink_inode_operations;
		inode->i_mapping->a_ops = &ufs_aops;
		err = page_symlink(inode, symname, l);
		if (err)
			goto out_fail;
	} else {
		/* fast symlink */
		inode->i_op = &ufs_fast_symlink_inode_operations;
		memcpy(UFS_I(inode)->i_u1.i_symlink, symname, l);
		inode->i_size = l-1;
	}
	mark_inode_dirty(inode);

	err = ufs_add_nondir(dentry, inode);
out:
	unlock_kernel();
out_notlocked:
	return err;

out_fail:
	inode_dec_link_count(inode);
	iput(inode);
	goto out;
}

static int ufs_link (struct dentry * old_dentry, struct inode * dir,
	struct dentry *dentry)
{
	struct inode *inode = old_dentry->d_inode;
	int error;

	lock_kernel();
	if (inode->i_nlink >= UFS_LINK_MAX) {
		unlock_kernel();
		return -EMLINK;
	}

	dquot_initialize(dir);

	inode->i_ctime = CURRENT_TIME_SEC;
	inode_inc_link_count(inode);
	atomic_inc(&inode->i_count);

	error = ufs_add_nondir(dentry, inode);
	unlock_kernel();
	return error;
}

static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
{
	struct inode * inode;
	int err = -EMLINK;

	if (dir->i_nlink >= UFS_LINK_MAX)
		goto out;

	dquot_initialize(dir);

	lock_kernel();
	inode_inc_link_count(dir);

	inode = ufs_new_inode(dir, S_IFDIR|mode);
	err = PTR_ERR(inode);
	if (IS_ERR(inode))
		goto out_dir;

	inode->i_op = &ufs_dir_inode_operations;
	inode->i_fop = &ufs_dir_operations;
	inode->i_mapping->a_ops = &ufs_aops;

	inode_inc_link_count(inode);

	err = ufs_make_empty(inode, dir);
	if (err)
		goto out_fail;

	err = ufs_add_link(dentry, inode);
	if (err)
		goto out_fail;
	unlock_kernel();

	d_instantiate(dentry, inode);
out:
	return err;

out_fail:
	inode_dec_link_count(inode);
	inode_dec_link_count(inode);
	iput (inode);
out_dir:
	inode_dec_link_count(dir);
	unlock_kernel();
	goto out;
}

static int ufs_unlink(struct inode *dir, struct dentry *dentry)
{
	struct inode * inode = dentry->d_inode;
	struct ufs_dir_entry *de;
	struct page *page;
	int err = -ENOENT;

	dquot_initialize(dir);

	de = ufs_find_entry(dir, &dentry->d_name, &page);
	if (!de)
		goto out;

	err = ufs_delete_entry(dir, de, page);
	if (err)
		goto out;

	inode->i_ctime = dir->i_ctime;
	inode_dec_link_count(inode);
	err = 0;
out:
	return err;
}

static int ufs_rmdir (struct inode * dir, struct dentry *dentry)
{
	struct inode * inode = dentry->d_inode;
	int err= -ENOTEMPTY;

	lock_kernel();
	if (ufs_empty_dir (inode)) {
		err = ufs_unlink(dir, dentry);
		if (!err) {
			inode->i_size = 0;
			inode_dec_link_count(inode);
			inode_dec_link_count(dir);
		}
	}
	unlock_kernel();
	return err;
}

static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry,
		      struct inode *new_dir, struct dentry *new_dentry)
{
	struct inode *old_inode = old_dentry->d_inode;
	struct inode *new_inode = new_dentry->d_inode;
	struct page *dir_page = NULL;
	struct ufs_dir_entry * dir_de = NULL;
	struct page *old_page;
	struct ufs_dir_entry *old_de;
	int err = -ENOENT;

	dquot_initialize(old_dir);
	dquot_initialize(new_dir);

	old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_page);
	if (!old_de)
		goto out;

	if (S_ISDIR(old_inode->i_mode)) {
		err = -EIO;
		dir_de = ufs_dotdot(old_inode, &dir_page);
		if (!dir_de)
			goto out_old;
	}

	if (new_inode) {
		struct page *new_page;
		struct ufs_dir_entry *new_de;

		err = -ENOTEMPTY;
		if (dir_de && !ufs_empty_dir(new_inode))
			goto out_dir;

		err = -ENOENT;
		new_de = ufs_find_entry(new_dir, &new_dentry->d_name, &new_page);
		if (!new_de)
			goto out_dir;
		inode_inc_link_count(old_inode);
		ufs_set_link(new_dir, new_de, new_page, old_inode);
		new_inode->i_ctime = CURRENT_TIME_SEC;
		if (dir_de)
			drop_nlink(new_inode);
		inode_dec_link_count(new_inode);
	} else {
		if (dir_de) {
			err = -EMLINK;
			if (new_dir->i_nlink >= UFS_LINK_MAX)
				goto out_dir;
		}
		inode_inc_link_count(old_inode);
		err = ufs_add_link(new_dentry, old_inode);
		if (err) {
			inode_dec_link_count(old_inode);
			goto out_dir;
		}
		if (dir_de)
			inode_inc_link_count(new_dir);
	}

	/*
	 * Like most other Unix systems, set the ctime for inodes on a
 	 * rename.
	 * inode_dec_link_count() will mark the inode dirty.
	 */
	old_inode->i_ctime = CURRENT_TIME_SEC;

	ufs_delete_entry(old_dir, old_de, old_page);
	inode_dec_link_count(old_inode);

	if (dir_de) {
		ufs_set_link(old_inode, dir_de, dir_page, new_dir);
		inode_dec_link_count(old_dir);
	}
	return 0;


out_dir:
	if (dir_de) {
		kunmap(dir_page);
		page_cache_release(dir_page);
	}
out_old:
	kunmap(old_page);
	page_cache_release(old_page);
out:
	return err;
}

const struct inode_operations ufs_dir_inode_operations = {
	.create		= ufs_create,
	.lookup		= ufs_lookup,
	.link		= ufs_link,
	.unlink		= ufs_unlink,
	.symlink	= ufs_symlink,
	.mkdir		= ufs_mkdir,
	.rmdir		= ufs_rmdir,
	.mknod		= ufs_mknod,
	.rename		= ufs_rename,
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/fs/ufs/namei.c
	3	*
b71034e5 ED	4	* Migration to usage of "page cache" on May 2006 by
	5	* Evgeniy Dushistov <dushistov@mail.ru> based on ext2 code base.
	6	*
1da177e4 LT	7	* Copyright (C) 1998
	8	* Daniel Pirkl <daniel.pirkl@email.cz>
	9	* Charles University, Faculty of Mathematics and Physics
	10	*
	11	* from
	12	*
	13	* linux/fs/ext2/namei.c
	14	*
	15	* Copyright (C) 1992, 1993, 1994, 1995
	16	* Remy Card (card@masi.ibp.fr)
	17	* Laboratoire MASI - Institut Blaise Pascal
	18	* Universite Pierre et Marie Curie (Paris VI)
	19	*
	20	* from
	21	*
	22	* linux/fs/minix/namei.c
	23	*
	24	* Copyright (C) 1991, 1992 Linus Torvalds
	25	*
	26	* Big-endian to little-endian byte-swapping/bitmaps by
	27	* David S. Miller (davem@caip.rutgers.edu), 1995
	28	*/
	29
	30	#include <linux/time.h>
	31	#include <linux/fs.h>
1da177e4	32	#include <linux/smp_lock.h>
907f4554	33	#include <linux/quotaops.h>
e5420598 MF	34
e5420598 MF	35	#include "ufs_fs.h"
bcd6d4ec	36	#include "ufs.h"
1da177e4 LT	37	#include "util.h"
1da177e4 LT	38
1da177e4 LT	39	static inline int ufs_add_nondir(struct dentry dentry, struct inode inode)
	40	{
	41	int err = ufs_add_link(dentry, inode);
	42	if (!err) {
	43	d_instantiate(dentry, inode);
	44	return 0;
	45	}
3257545e	46	inode_dec_link_count(inode);
1da177e4 LT	47	iput(inode);
	48	return err;
	49	}
	50
	51	static struct dentry ufs_lookup(struct inode dir, struct dentry dentry, struct nameidata nd)
	52	{
	53	struct inode * inode = NULL;
	54	ino_t ino;
	55
	56	if (dentry->d_name.len > UFS_MAXNAMLEN)
	57	return ERR_PTR(-ENAMETOOLONG);
	58
	59	lock_kernel();
08049707	60	ino = ufs_inode_by_name(dir, &dentry->d_name);
1da177e4	61	if (ino) {
b55c460d DH	62	inode = ufs_iget(dir->i_sb, ino);
b55c460d DH	63	if (IS_ERR(inode)) {
1da177e4	64	unlock_kernel();
b55c460d	65	return ERR_CAST(inode);
1da177e4 LT	66	}
	67	}
	68	unlock_kernel();
	69	d_add(dentry, inode);
	70	return NULL;
	71	}
	72
	73	/*
	74	* By the time this is called, we already have created
	75	* the directory cache entry for the new file, but it
	76	* is so far negative - it has no inode.
	77	*
	78	* If the create succeeds, we fill in the inode information
	79	* with d_instantiate().
	80	*/
	81	static int ufs_create (struct inode * dir, struct dentry * dentry, int mode,
	82	struct nameidata *nd)
	83	{
abf5d15f ED	84	struct inode *inode;
	85	int err;
	86
	87	UFSD("BEGIN\n");
907f4554	88
871a2931	89	dquot_initialize(dir);
907f4554	90
abf5d15f ED	91	inode = ufs_new_inode(dir, mode);
	92	err = PTR_ERR(inode);
	93
1da177e4 LT	94	if (!IS_ERR(inode)) {
	95	inode->i_op = &ufs_file_inode_operations;
	96	inode->i_fop = &ufs_file_operations;
	97	inode->i_mapping->a_ops = &ufs_aops;
	98	mark_inode_dirty(inode);
	99	lock_kernel();
	100	err = ufs_add_nondir(dentry, inode);
	101	unlock_kernel();
	102	}
abf5d15f	103	UFSD("END: err=%d\n", err);
1da177e4 LT	104	return err;
	105	}
	106
	107	static int ufs_mknod (struct inode * dir, struct dentry *dentry, int mode, dev_t rdev)
	108	{
	109	struct inode *inode;
	110	int err;
	111
	112	if (!old_valid_dev(rdev))
	113	return -EINVAL;
907f4554	114
871a2931	115	dquot_initialize(dir);
907f4554	116
1da177e4 LT	117	inode = ufs_new_inode(dir, mode);
	118	err = PTR_ERR(inode);
	119	if (!IS_ERR(inode)) {
	120	init_special_inode(inode, mode, rdev);
1da177e4 LT	121	ufs_set_inode_dev(inode->i_sb, UFS_I(inode), rdev);
	122	mark_inode_dirty(inode);
	123	lock_kernel();
	124	err = ufs_add_nondir(dentry, inode);
	125	unlock_kernel();
	126	}
	127	return err;
	128	}
	129
	130	static int ufs_symlink (struct inode * dir, struct dentry * dentry,
	131	const char * symname)
	132	{
	133	struct super_block * sb = dir->i_sb;
	134	int err = -ENAMETOOLONG;
	135	unsigned l = strlen(symname)+1;
	136	struct inode * inode;
	137
	138	if (l > sb->s_blocksize)
344fe786	139	goto out_notlocked;
1da177e4	140
871a2931	141	dquot_initialize(dir);
907f4554	142
1da177e4 LT	143	lock_kernel();
	144	inode = ufs_new_inode(dir, S_IFLNK \| S_IRWXUGO);
	145	err = PTR_ERR(inode);
	146	if (IS_ERR(inode))
	147	goto out;
	148
	149	if (l > UFS_SB(sb)->s_uspi->s_maxsymlinklen) {
	150	/* slow symlink */
	151	inode->i_op = &page_symlink_inode_operations;
	152	inode->i_mapping->a_ops = &ufs_aops;
	153	err = page_symlink(inode, symname, l);
	154	if (err)
	155	goto out_fail;
	156	} else {
	157	/* fast symlink */
	158	inode->i_op = &ufs_fast_symlink_inode_operations;
723be1f3	159	memcpy(UFS_I(inode)->i_u1.i_symlink, symname, l);
1da177e4 LT	160	inode->i_size = l-1;
	161	}
	162	mark_inode_dirty(inode);
	163
	164	err = ufs_add_nondir(dentry, inode);
	165	out:
	166	unlock_kernel();
344fe786	167	out_notlocked:
1da177e4 LT	168	return err;
	169
	170	out_fail:
3257545e	171	inode_dec_link_count(inode);
1da177e4 LT	172	iput(inode);
	173	goto out;
	174	}
	175
	176	static int ufs_link (struct dentry * old_dentry, struct inode * dir,
	177	struct dentry *dentry)
	178	{
	179	struct inode *inode = old_dentry->d_inode;
	180	int error;
	181
	182	lock_kernel();
	183	if (inode->i_nlink >= UFS_LINK_MAX) {
	184	unlock_kernel();
	185	return -EMLINK;
	186	}
	187
871a2931	188	dquot_initialize(dir);
907f4554	189
1da177e4	190	inode->i_ctime = CURRENT_TIME_SEC;
3257545e	191	inode_inc_link_count(inode);
1da177e4 LT	192	atomic_inc(&inode->i_count);
	193
	194	error = ufs_add_nondir(dentry, inode);
	195	unlock_kernel();
	196	return error;
	197	}
	198
	199	static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
	200	{
	201	struct inode * inode;
	202	int err = -EMLINK;
	203
	204	if (dir->i_nlink >= UFS_LINK_MAX)
	205	goto out;
	206
871a2931	207	dquot_initialize(dir);
907f4554	208
1da177e4	209	lock_kernel();
3257545e	210	inode_inc_link_count(dir);
1da177e4 LT	211
	212	inode = ufs_new_inode(dir, S_IFDIR\|mode);
	213	err = PTR_ERR(inode);
	214	if (IS_ERR(inode))
	215	goto out_dir;
	216
	217	inode->i_op = &ufs_dir_inode_operations;
	218	inode->i_fop = &ufs_dir_operations;
826843a3	219	inode->i_mapping->a_ops = &ufs_aops;
1da177e4	220
3257545e	221	inode_inc_link_count(inode);
1da177e4 LT	222
	223	err = ufs_make_empty(inode, dir);
	224	if (err)
	225	goto out_fail;
	226
	227	err = ufs_add_link(dentry, inode);
	228	if (err)
	229	goto out_fail;
	230	unlock_kernel();
	231
	232	d_instantiate(dentry, inode);
	233	out:
	234	return err;
	235
	236	out_fail:
3257545e AD	237	inode_dec_link_count(inode);
3257545e AD	238	inode_dec_link_count(inode);
1da177e4 LT	239	iput (inode);
1da177e4 LT	240	out_dir:
3257545e	241	inode_dec_link_count(dir);
1da177e4 LT	242	unlock_kernel();
	243	goto out;
	244	}
	245
b71034e5	246	static int ufs_unlink(struct inode dir, struct dentry dentry)
1da177e4 LT	247	{
1da177e4 LT	248	struct inode * inode = dentry->d_inode;
b71034e5 ED	249	struct ufs_dir_entry *de;
b71034e5 ED	250	struct page *page;
1da177e4 LT	251	int err = -ENOENT;
1da177e4 LT	252
871a2931	253	dquot_initialize(dir);
907f4554	254
08049707	255	de = ufs_find_entry(dir, &dentry->d_name, &page);
1da177e4 LT	256	if (!de)
	257	goto out;
	258
b71034e5	259	err = ufs_delete_entry(dir, de, page);
1da177e4 LT	260	if (err)
	261	goto out;
	262
	263	inode->i_ctime = dir->i_ctime;
3257545e	264	inode_dec_link_count(inode);
1da177e4 LT	265	err = 0;
1da177e4 LT	266	out:
1da177e4 LT	267	return err;
	268	}
	269
	270	static int ufs_rmdir (struct inode * dir, struct dentry *dentry)
	271	{
	272	struct inode * inode = dentry->d_inode;
	273	int err= -ENOTEMPTY;
	274
	275	lock_kernel();
	276	if (ufs_empty_dir (inode)) {
	277	err = ufs_unlink(dir, dentry);
	278	if (!err) {
	279	inode->i_size = 0;
3257545e AD	280	inode_dec_link_count(inode);
3257545e AD	281	inode_dec_link_count(dir);
1da177e4 LT	282	}
	283	}
	284	unlock_kernel();
	285	return err;
	286	}
	287
b71034e5 ED	288	static int ufs_rename(struct inode old_dir, struct dentry old_dentry,
b71034e5 ED	289	struct inode new_dir, struct dentry new_dentry)
1da177e4 LT	290	{
	291	struct inode *old_inode = old_dentry->d_inode;
	292	struct inode *new_inode = new_dentry->d_inode;
b71034e5 ED	293	struct page *dir_page = NULL;
	294	struct ufs_dir_entry * dir_de = NULL;
	295	struct page *old_page;
1da177e4 LT	296	struct ufs_dir_entry *old_de;
	297	int err = -ENOENT;
	298
871a2931 CH	299	dquot_initialize(old_dir);
871a2931 CH	300	dquot_initialize(new_dir);
907f4554	301
08049707	302	old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_page);
1da177e4 LT	303	if (!old_de)
	304	goto out;
	305
	306	if (S_ISDIR(old_inode->i_mode)) {
	307	err = -EIO;
b71034e5	308	dir_de = ufs_dotdot(old_inode, &dir_page);
1da177e4 LT	309	if (!dir_de)
	310	goto out_old;
	311	}
	312
	313	if (new_inode) {
b71034e5	314	struct page *new_page;
1da177e4 LT	315	struct ufs_dir_entry *new_de;
	316
	317	err = -ENOTEMPTY;
b71034e5	318	if (dir_de && !ufs_empty_dir(new_inode))
1da177e4	319	goto out_dir;
b71034e5	320
1da177e4	321	err = -ENOENT;
08049707	322	new_de = ufs_find_entry(new_dir, &new_dentry->d_name, &new_page);
1da177e4 LT	323	if (!new_de)
1da177e4 LT	324	goto out_dir;
3257545e	325	inode_inc_link_count(old_inode);
b71034e5	326	ufs_set_link(new_dir, new_de, new_page, old_inode);
1da177e4 LT	327	new_inode->i_ctime = CURRENT_TIME_SEC;
1da177e4 LT	328	if (dir_de)
9a53c3a7	329	drop_nlink(new_inode);
3257545e	330	inode_dec_link_count(new_inode);
1da177e4 LT	331	} else {
	332	if (dir_de) {
	333	err = -EMLINK;
	334	if (new_dir->i_nlink >= UFS_LINK_MAX)
	335	goto out_dir;
	336	}
3257545e	337	inode_inc_link_count(old_inode);
1da177e4 LT	338	err = ufs_add_link(new_dentry, old_inode);
1da177e4 LT	339	if (err) {
3257545e	340	inode_dec_link_count(old_inode);
1da177e4 LT	341	goto out_dir;
	342	}
	343	if (dir_de)
3257545e	344	inode_inc_link_count(new_dir);
1da177e4 LT	345	}
1da177e4 LT	346
b71034e5 ED	347	/*
	348	* Like most other Unix systems, set the ctime for inodes on a
	349	* rename.
	350	* inode_dec_link_count() will mark the inode dirty.
	351	*/
	352	old_inode->i_ctime = CURRENT_TIME_SEC;
1da177e4	353
b71034e5	354	ufs_delete_entry(old_dir, old_de, old_page);
3257545e	355	inode_dec_link_count(old_inode);
1da177e4 LT	356
1da177e4 LT	357	if (dir_de) {
b71034e5	358	ufs_set_link(old_inode, dir_de, dir_page, new_dir);
3257545e	359	inode_dec_link_count(old_dir);
1da177e4	360	}
1da177e4 LT	361	return 0;
1da177e4 LT	362
b71034e5	363
1da177e4	364	out_dir:
b71034e5 ED	365	if (dir_de) {
	366	kunmap(dir_page);
	367	page_cache_release(dir_page);
	368	}
1da177e4	369	out_old:
b71034e5 ED	370	kunmap(old_page);
b71034e5 ED	371	page_cache_release(old_page);
1da177e4	372	out:
1da177e4 LT	373	return err;
	374	}
	375
c5ef1c42	376	const struct inode_operations ufs_dir_inode_operations = {
1da177e4 LT	377	.create = ufs_create,
	378	.lookup = ufs_lookup,
	379	.link = ufs_link,
	380	.unlink = ufs_unlink,
	381	.symlink = ufs_symlink,
	382	.mkdir = ufs_mkdir,
	383	.rmdir = ufs_rmdir,
	384	.mknod = ufs_mknod,
	385	.rename = ufs_rename,
	386	};