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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#define NILFS_DAT_GFP NILFS_MDT_GFP
31
32struct nilfs_palloc_req;
33
34int nilfs_dat_translate(struct inode *, __u64, sector_t *);
35
36int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
37void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
38void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
39int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
40void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
41 sector_t);
42void nilfs_dat_abort_start(struct inode *, struct nilfs_palloc_req *);
43int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
44void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
45void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
46
47int nilfs_dat_mark_dirty(struct inode *, __u64);
48int nilfs_dat_freev(struct inode *, __u64 *, size_t);
49int nilfs_dat_move(struct inode *, __u64, sector_t);
50ssize_t nilfs_dat_get_vinfo(struct inode *, struct nilfs_vinfo *, size_t);
51
52#endif /* _NILFS_DAT_H */