1/*
2 * dat.h - NILFS disk address translation.
3 *
4 * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
19 *
20 * Written by Koji Sato <koji@osrg.net>.
21 */
22
23#ifndef _NILFS_DAT_H
24#define _NILFS_DAT_H
25
26#include <linux/types.h>
27#include <linux/buffer_head.h>
28#include <linux/fs.h>
29
30
31struct nilfs_palloc_req;
32
33int nilfs_dat_translate(struct inode *, __u64, sector_t *);
34
35int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
36void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
37void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
38int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
39void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
40			    sector_t);
41int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
42void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
43void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
44int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
45			     struct nilfs_palloc_req *);
46void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
47			     struct nilfs_palloc_req *, int);
48void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
49			    struct nilfs_palloc_req *);
50
51int nilfs_dat_mark_dirty(struct inode *, __u64);
52int nilfs_dat_freev(struct inode *, __u64 *, size_t);
53int nilfs_dat_move(struct inode *, __u64, sector_t);
54ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
55
56int nilfs_dat_read(struct inode *dat, struct nilfs_inode *raw_inode);
57struct inode *nilfs_dat_new(struct the_nilfs *nilfs, size_t entry_size);
58
59#endif	/* _NILFS_DAT_H */
60