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 21void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev); 22void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev); 23void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev, 24 struct yaffs_block_info *bi); 25void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no, 26 struct yaffs_block_info *bi); 27int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi); 28u32 yaffs2_find_refresh_block(struct yaffs_dev *dev); 29int yaffs2_checkpt_required(struct yaffs_dev *dev); 30int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev); 31 32void yaffs2_checkpt_invalidate(struct yaffs_dev *dev); 33int yaffs2_checkpt_save(struct yaffs_dev *dev); 34int yaffs2_checkpt_restore(struct yaffs_dev *dev); 35 36int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size); 37int yaffs2_scan_backwards(struct yaffs_dev *dev); 38 39#endif 40