1 /*
2  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
3  *
4  * Copyright (C) 2002-2011 Aleph One Ltd.
5  *   for Toby Churchill Ltd and Brightstar Engineering
6  *
7  * Created by Charles Manning <charles@aleph1.co.uk>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU Lesser General Public License version 2.1 as
11  * published by the Free Software Foundation.
12  *
13  * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
14  */
15 
16 #ifndef __YAFFS_YAFFS2_H__
17 #define __YAFFS_YAFFS2_H__
18 
19 #include "yaffs_guts.h"
20 
21 void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev);
22 void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev);
23 void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev,
24 				   struct yaffs_block_info *bi);
25 void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no,
26 				    struct yaffs_block_info *bi);
27 int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi);
28 u32 yaffs2_find_refresh_block(struct yaffs_dev *dev);
29 int yaffs2_checkpt_required(struct yaffs_dev *dev);
30 int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev);
31 
32 void yaffs2_checkpt_invalidate(struct yaffs_dev *dev);
33 int yaffs2_checkpt_save(struct yaffs_dev *dev);
34 int yaffs2_checkpt_restore(struct yaffs_dev *dev);
35 
36 int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size);
37 int yaffs2_scan_backwards(struct yaffs_dev *dev);
38 
39 #endif
40