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* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
* Copyright (C) 2002-2010 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
* Created by Charles Manning <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#ifndef __YAFFS_YAFFS2_H__
#define __YAFFS_YAFFS2_H__
#include "yaffs_guts.h"
void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev);
void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev);
void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi);
void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi);
int yaffs_block_ok_for_gc(yaffs_dev_t *dev, yaffs_block_info_t *bi);
__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev);
int yaffs2_checkpt_required(yaffs_dev_t *dev);
int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev);
void yaffs2_checkpt_invalidate(yaffs_dev_t *dev);
int yaffs2_checkpt_save(yaffs_dev_t *dev);
int yaffs2_checkpt_restore(yaffs_dev_t *dev);
int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size);
int yaffs2_scan_backwards(yaffs_dev_t *dev);