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dat.h
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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 <[email protected]>.
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 
31 struct nilfs_palloc_req;
32 
33 int nilfs_dat_translate(struct inode *, __u64, sector_t *);
34 
35 int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
36 void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
37 void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
38 int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
39 void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
40  sector_t);
41 int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
42 void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
43 void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
44 int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
45  struct nilfs_palloc_req *);
46 void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
47  struct nilfs_palloc_req *, int);
48 void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
49  struct nilfs_palloc_req *);
50 
51 int nilfs_dat_mark_dirty(struct inode *, __u64);
52 int nilfs_dat_freev(struct inode *, __u64 *, size_t);
53 int nilfs_dat_move(struct inode *, __u64, sector_t);
54 ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned, size_t);
55 
56 int nilfs_dat_read(struct super_block *sb, size_t entry_size,
57  struct nilfs_inode *raw_inode, struct inode **inodep);
58 
59 #endif /* _NILFS_DAT_H */
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