xref: /linux/fs/nilfs2/dat.h (revision 7fcfa9a2d9a7c1b428d61992c2deaa9e37a437b0)
1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * dat.h - NILFS disk address translation.
4  *
5  * Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
6  *
7  * Written by Koji Sato.
8  */
9 
10 #ifndef _NILFS_DAT_H
11 #define _NILFS_DAT_H
12 
13 #include <linux/types.h>
14 #include <linux/buffer_head.h>
15 #include <linux/fs.h>
16 #include <linux/nilfs2_ondisk.h>	/* nilfs_inode, nilfs_checkpoint */
17 
18 
19 struct nilfs_palloc_req;
20 
21 int nilfs_dat_translate(struct inode *, __u64, sector_t *);
22 
23 int nilfs_dat_prepare_alloc(struct inode *, struct nilfs_palloc_req *);
24 void nilfs_dat_commit_alloc(struct inode *, struct nilfs_palloc_req *);
25 void nilfs_dat_abort_alloc(struct inode *, struct nilfs_palloc_req *);
26 int nilfs_dat_prepare_start(struct inode *, struct nilfs_palloc_req *);
27 void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
28 			    sector_t);
29 int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
30 void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
31 void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
32 int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
33 			     struct nilfs_palloc_req *);
34 void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
35 			     struct nilfs_palloc_req *, int);
36 void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
37 			    struct nilfs_palloc_req *);
38 
39 int nilfs_dat_mark_dirty(struct inode *, __u64);
40 int nilfs_dat_freev(struct inode *, __u64 *, size_t);
41 int nilfs_dat_move(struct inode *, __u64, sector_t);
42 ssize_t nilfs_dat_get_vinfo(struct inode *, void *, unsigned int, size_t);
43 
44 int nilfs_dat_read(struct super_block *sb, size_t entry_size,
45 		   struct nilfs_inode *raw_inode, struct inode **inodep);
46 
47 #endif	/* _NILFS_DAT_H */
48