diff -urp linux-2.4.24.orig/fs/ext3/ialloc.c linux-2.4.24/fs/ext3/ialloc.c
--- linux-2.4.24.orig/fs/ext3/ialloc.c	2007-02-16 10:54:31.000000000 +0200
+++ linux-2.4.24/fs/ext3/ialloc.c	2007-02-16 10:55:30.000000000 +0200
@@ -330,7 +330,8 @@ int ext3_itable_block_used(struct super_
  * group to find a free inode.
  */
 struct inode * ext3_new_inode (handle_t *handle,
-				const struct inode * dir, int mode)
+				const struct inode * dir, int mode,
+				unsigned long goal)
 {
 	struct super_block * sb;
 	struct buffer_head * bh;
@@ -355,7 +356,41 @@ struct inode * ext3_new_inode (handle_t 
 	init_rwsem(&inode->u.ext3_i.truncate_sem);
 
 	lock_super (sb);
-	es = sb->u.ext3_sb.s_es;
+	es = EXT3_SB(sb)->s_es;
+
+	if (goal) {
+		i = (goal - 1) / EXT3_INODES_PER_GROUP(sb);
+		j = (goal - 1) % EXT3_INODES_PER_GROUP(sb);
+		gdp = ext3_get_group_desc(sb, i, &bh2);
+
+		bitmap_nr = load_inode_bitmap (sb, i);
+		if (bitmap_nr < 0) {
+			err = bitmap_nr;
+			goto fail;
+		}
+
+		bh = EXT3_SB(sb)->s_inode_bitmap[bitmap_nr];
+
+		BUFFER_TRACE(bh, "get_write_access");
+		err = ext3_journal_get_write_access(handle, bh);
+		if (err) goto fail;
+
+		if (ext3_set_bit(j, bh->b_data)) {
+			printk(KERN_ERR "goal inode %lu unavailable\n", goal);
+			/* Oh well, we tried. */
+			goto repeat;
+		}
+
+		BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
+		err = ext3_journal_dirty_metadata(handle, bh);
+		if (err) goto fail;
+
+		/* We've shortcircuited the allocation system successfully,
+		 * now finish filling in the inode.
+		 */
+		goto have_bit_and_group;
+	}
+
 repeat:
 	gdp = NULL;
 	i = 0;
@@ -470,6 +505,7 @@ repeat:
 		}
 		goto repeat;
 	}
+ have_bit_and_group:
 	j += i * EXT3_INODES_PER_GROUP(sb) + 1;
 	if (j < EXT3_FIRST_INO(sb) || j > le32_to_cpu(es->s_inodes_count)) {
 		ext3_error (sb, "ext3_new_inode",
diff -urp linux-2.4.24.orig/fs/ext3/inode.c linux-2.4.24/fs/ext3/inode.c
--- linux-2.4.24.orig/fs/ext3/inode.c	2007-02-16 10:54:31.000000000 +0200
+++ linux-2.4.24/fs/ext3/inode.c	2007-02-16 10:55:30.000000000 +0200
@@ -2605,7 +2605,7 @@ void ext3_truncate_thread(struct inode *
 	if (IS_ERR(handle))
 		goto out_truncate;
 
-	new_inode = ext3_new_inode(handle, old_inode, old_inode->i_mode);
+	new_inode = ext3_new_inode(handle, old_inode, old_inode->i_mode, 0);
 	if (IS_ERR(new_inode)) {
 		ext3_debug("truncate inode %lu directly (no new inodes)\n",
 			   old_inode->i_ino);
diff -urp linux-2.4.24.orig/fs/ext3/ioctl.c linux-2.4.24/fs/ext3/ioctl.c
--- linux-2.4.24.orig/fs/ext3/ioctl.c	2003-06-13 17:51:37.000000000 +0300
+++ linux-2.4.24/fs/ext3/ioctl.c	2007-02-16 10:55:30.000000000 +0200
@@ -23,6 +23,31 @@ int ext3_ioctl (struct inode * inode, st
 	ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg);
 
 	switch (cmd) {
+	case EXT3_IOC_CREATE_INUM: {
+		char name[32];
+		struct dentry *dchild, *dparent;
+		int rc = 0;
+
+		dparent = list_entry(inode->i_dentry.next, struct dentry,
+				     d_alias);
+		snprintf(name, sizeof name, "%lu", arg);
+		dchild = lookup_one_len(name, dparent, strlen(name));
+		if (dchild->d_inode) {
+			printk(KERN_ERR "%*s/%lu already exists (ino %lu)\n",
+			       dparent->d_name.len, dparent->d_name.name, arg,
+			       dchild->d_inode->i_ino);
+			rc = -EEXIST;
+		} else {
+			dchild->d_fsdata = (void *)arg;
+			rc = vfs_create(inode, dchild, 0644);
+			if (rc)
+				printk(KERN_ERR "vfs_create: %d\n", rc);
+			else if (dchild->d_inode->i_ino != arg)
+				rc = -EEXIST;
+		}
+		dput(dchild);
+		return rc;
+	}
 	case EXT3_IOC_GETFLAGS:
 		flags = inode->u.ext3_i.i_flags & EXT3_FL_USER_VISIBLE;
 		return put_user(flags, (int *) arg);
diff -urp linux-2.4.24.orig/fs/ext3/namei.c linux-2.4.24/fs/ext3/namei.c
--- linux-2.4.24.orig/fs/ext3/namei.c	2007-02-16 10:54:31.000000000 +0200
+++ linux-2.4.24/fs/ext3/namei.c	2007-02-16 10:56:22.000000000 +0200
@@ -142,6 +142,14 @@ struct dx_map_entry
 	u32 offs;
 };
 
+#define LVFS_DENTRY_PARAM_MAGIC		20070216UL
+struct lvfs_dentry_params
+{
+	unsigned long   p_inum;
+	void            *p_ptr;	
+	u32		magic;
+};
+
 #ifdef CONFIG_EXT3_INDEX
 static inline unsigned dx_get_block (struct dx_entry *entry);
 static void dx_set_block (struct dx_entry *entry, unsigned value);
@@ -1541,6 +1549,20 @@ static int ext3_add_nondir(handle_t *han
 	return err;
 }
 
+static struct inode * ext3_new_inode_wantedi(handle_t *handle, struct inode *dir,
+						int mode, struct dentry *dentry)
+{
+	unsigned long inum = 0;
+
+	if (dentry->d_fsdata != NULL) {
+		struct lvfs_dentry_params *param = dentry->d_fsdata;
+
+		if (param->magic == LVFS_DENTRY_PARAM_MAGIC)
+			inum = param->p_inum;
+	}
+	return ext3_new_inode(handle, dir, mode, inum);
+}
+
 /*
  * By the time this is called, we already have created
  * the directory cache entry for the new file, but it
@@ -1564,7 +1586,7 @@ static int ext3_create (struct inode * d
 	if (IS_SYNC(dir))
 		handle->h_sync = 1;
 
-	inode = ext3_new_inode (handle, dir, mode);
+	inode = ext3_new_inode_wantedi (handle, dir, mode, dentry);
 	err = PTR_ERR(inode);
 	if (!IS_ERR(inode)) {
 		inode->i_op = &ext3_file_inode_operations;
@@ -1592,7 +1614,7 @@ static int ext3_mknod (struct inode * di
 	if (IS_SYNC(dir))
 		handle->h_sync = 1;
 
-	inode = ext3_new_inode (handle, dir, mode);
+	inode = ext3_new_inode_wantedi (handle, dir, mode, dentry);
 	err = PTR_ERR(inode);
 	if (!IS_ERR(inode)) {
 		init_special_inode(inode, mode, rdev);
@@ -1622,7 +1644,7 @@ static int ext3_mkdir(struct inode * dir
 	if (IS_SYNC(dir))
 		handle->h_sync = 1;
 
-	inode = ext3_new_inode (handle, dir, S_IFDIR | mode);
+	inode = ext3_new_inode_wantedi (handle, dir, S_IFDIR | mode, dentry);
 	err = PTR_ERR(inode);
 	if (IS_ERR(inode))
 		goto out_stop;
@@ -2053,7 +2075,7 @@ static int ext3_symlink (struct inode * 
 	if (IS_SYNC(dir))
 		handle->h_sync = 1;
 
-	inode = ext3_new_inode (handle, dir, S_IFLNK|S_IRWXUGO);
+	inode = ext3_new_inode_wantedi (handle, dir, S_IFLNK|S_IRWXUGO, dentry);
 	err = PTR_ERR(inode);
 	if (IS_ERR(inode))
 		goto out_stop;
diff -urp linux-2.4.24.orig/include/linux/ext3_fs.h linux-2.4.24/include/linux/ext3_fs.h
--- linux-2.4.24.orig/include/linux/ext3_fs.h	2007-02-16 10:54:31.000000000 +0200
+++ linux-2.4.24/include/linux/ext3_fs.h	2007-02-16 10:55:30.000000000 +0200
@@ -202,6 +202,7 @@ struct ext3_group_desc
 #define	EXT3_IOC_SETFLAGS		_IOW('f', 2, long)
 #define	EXT3_IOC_GETVERSION		_IOR('f', 3, long)
 #define	EXT3_IOC_SETVERSION		_IOW('f', 4, long)
+/* EXT3_IOC_CREATE_INUM at bottom of file (visible to kernel and user). */
 #define	EXT3_IOC_GETVERSION_OLD		_IOR('v', 1, long)
 #define	EXT3_IOC_SETVERSION_OLD		_IOW('v', 2, long)
 #ifdef CONFIG_JBD_DEBUG
@@ -674,7 +675,8 @@ extern int ext3fs_dirhash(const char *na
 			  dx_hash_info *hinfo);
 
 /* ialloc.c */
-extern struct inode * ext3_new_inode (handle_t *, const struct inode *, int);
+extern struct inode * ext3_new_inode (handle_t *, const struct inode *, int,
+				      unsigned long);
 extern void ext3_free_inode (handle_t *, struct inode *);
 extern struct inode * ext3_orphan_get (struct super_block *, unsigned long);
 extern unsigned long ext3_count_free_inodes (struct super_block *);
@@ -766,4 +768,5 @@ extern struct inode_operations ext3_fast
 
 #endif	/* __KERNEL__ */
 
+#define EXT3_IOC_CREATE_INUM			_IOW('f', 5, long)
 #endif	/* _LINUX_EXT3_FS_H */