1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2002-2011 Aleph One Ltd. 5*4882a593Smuzhiyun * for Toby Churchill Ltd and Brightstar Engineering 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Created by Charles Manning <charles@aleph1.co.uk> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 10*4882a593Smuzhiyun * it under the terms of the GNU Lesser General Public License version 2.1 as 11*4882a593Smuzhiyun * published by the Free Software Foundation. 12*4882a593Smuzhiyun * 13*4882a593Smuzhiyun * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #ifndef __YAFFS_YAFFS2_H__ 17*4882a593Smuzhiyun #define __YAFFS_YAFFS2_H__ 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #include "yaffs_guts.h" 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev); 22*4882a593Smuzhiyun void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev); 23*4882a593Smuzhiyun void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev, 24*4882a593Smuzhiyun struct yaffs_block_info *bi); 25*4882a593Smuzhiyun void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no, 26*4882a593Smuzhiyun struct yaffs_block_info *bi); 27*4882a593Smuzhiyun int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi); 28*4882a593Smuzhiyun u32 yaffs2_find_refresh_block(struct yaffs_dev *dev); 29*4882a593Smuzhiyun int yaffs2_checkpt_required(struct yaffs_dev *dev); 30*4882a593Smuzhiyun int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev); 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun void yaffs2_checkpt_invalidate(struct yaffs_dev *dev); 33*4882a593Smuzhiyun int yaffs2_checkpt_save(struct yaffs_dev *dev); 34*4882a593Smuzhiyun int yaffs2_checkpt_restore(struct yaffs_dev *dev); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun int yaffs2_handle_hole(struct yaffs_obj *obj, loff_t new_size); 37*4882a593Smuzhiyun int yaffs2_scan_backwards(struct yaffs_dev *dev); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #endif 40