2 * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
4 * Copyright (C) 2002-2010 Aleph One Ltd.
5 * for Toby Churchill Ltd and Brightstar Engineering
7 * Created by Charles Manning <charles@aleph1.co.uk>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #ifndef __YAFFS_YAFFS2_H__
15 #define __YAFFS_YAFFS2_H__
17 #include "yaffs_guts.h"
19 void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev);
20 void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev);
21 void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi);
22 void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi);
23 int yaffs_block_ok_for_gc(yaffs_dev_t *dev, yaffs_block_info_t *bi);
24 __u32 yaffs2_find_refresh_block(yaffs_dev_t *dev);
25 int yaffs2_checkpt_required(yaffs_dev_t *dev);
26 int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev);
29 void yaffs2_checkpt_invalidate(yaffs_dev_t *dev);
30 int yaffs2_checkpt_save(yaffs_dev_t *dev);
31 int yaffs2_checkpt_restore(yaffs_dev_t *dev);
33 int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size);
34 int yaffs2_scan_backwards(yaffs_dev_t *dev);