static int
ospfs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
{
	ospfs_inode_t *dir_oi = ospfs_inode(dir->i_ino);
	uint32_t entry_ino = 0;
	ospfs_direntry_t *entry;
	ospfs_inode_t* i_struct = NULL;

	/* EXERCISE: Your code here. */
	if (!dir_oi)
		return -EIO; /* Not sure if that's right error message, but anyway we should
	                  check for this */

	if (dentry->d_name.len > OSPFS_MAXNAMELEN)
		return -ENAMETOOLONG;

	if (find_direntry(dir_oi, dentry->d_name.name, dentry->d_name.len))
		return -EEXIST;

	//find unused inode
	for (entry_ino = 2; entry_ino < ospfs_super->os_ninodes; entry_ino++) {
		i_struct = ospfs_inode(entry_ino);
		if (i_struct && i_struct->oi_nlink == 0) {
			i_struct->oi_nlink++;
			break;
		}
	}
	if (entry_ino == ospfs_super->os_ninodes || i_struct == NULL)
		return -ENOSPC;

	/* empty file */
	i_struct->oi_size = 0;
	i_struct->oi_ftype = OSPFS_FTYPE_REG;
	i_struct->oi_mode = mode;
	memset(i_struct->oi_direct, 0, 10 * sizeof(uint32_t));
	i_struct->oi_indirect = 0;
	i_struct->oi_indirect2 = 0;

	entry = create_blank_direntry(dir_oi);
	if (IS_ERR(entry)) {
		i_struct->oi_nlink--;
		return PTR_ERR(entry);
	}

	entry->od_ino = entry_ino;
	memcpy(entry->od_name, dentry->d_name.name, dentry->d_name.len);
	entry->od_name[dentry->d_name.len] = 0;

	//return -EINVAL; // Replace this line

	/* Execute this code after your function has successfully created the
	   file.  Set entry_ino to the created file's inode number before
	   getting here. */
	{
		struct inode *i = ospfs_mk_linux_inode(dir->i_sb, entry_ino);
		if (!i)
			return -ENOMEM;
		d_instantiate(dentry, i);
		return 0;
	}
}