static int bdi_debug_stats_open(struct inode *inode, struct file *file)
{
	return single_open(file, bdi_debug_stats_show, inode->i_private);
}

static int nfsd_proc_open(struct inode *inode, struct file *file)
{
    return single_open(file, nfsd_proc_show, NULL);
}

static int version_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, version_proc_show, PDE_DATA(inode));
}

static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
{
	return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
}

static int sm5418_debugfs_open(struct inode *inode, struct file *file)
{
	return single_open(file, sm5418_debugfs_show, inode->i_private);
}

static int memfree_hist_open(struct inode *inode, struct file *file)
{
	return single_open(file, memfree_hist_print, inode->i_private);
}

static int pm822_dbg_open(struct inode *inode, struct file *file)
{
	return single_open(file, show_pm822_reg_info, inode->i_private);
}

static int pll_reg_open(struct inode *inode, struct file *file)
{
	return single_open(file, pll_reg_show, inode->i_private);
}

static int rcuhier_open(struct inode *inode, struct file *file)
{
	return single_open(file, show_rcuhier, NULL);
}

static int rcu_pending_open(struct inode *inode, struct file *file)
{
	return single_open(file, show_rcu_pending, NULL);
}

static int rcu_node_boost_open(struct inode *inode, struct file *file)
{
	return single_open(file, show_rcu_node_boost, NULL);
}

static int rcudata_csv_open(struct inode *inode, struct file *file)
{
	return single_open(file, show_rcudata_csv, NULL);
}

static int mtk_cl_fps_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, mtk_cl_fps_proc_read, NULL);
}

static int jfs_loglevel_proc_open(struct inode *inode, struct file *file)
{
	return single_open(file, jfs_loglevel_proc_show, NULL);
}

static int fps_tm_count_open(struct inode *inode, struct file *file)
{
	return single_open(file, fps_tm_count_read, PDE_DATA(inode));
}

static int qperf_seq_open(struct inode *inode, struct file *filp)
{
	return single_open(filp, qperf_show,
			   filp->f_path.dentry->d_inode->i_private);
}

static int ddrinfo_open(struct inode *inode, struct file *file)
{
    return single_open(file, ddr_info_show, NULL);
}

static int segment_info_open_fs(struct inode *inode, struct file *file)
{
	return single_open(file, segment_info_seq_show, PDE_DATA(inode));
}

static int process_mem_open(struct inode *inode, struct file *file)
{
	return single_open(file, process_mem_print, inode->i_private);
}

static int ion_debug_client_open(struct inode *inode, struct file *file)
{
	return single_open(file, ion_debug_client_show, inode->i_private);
}