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1 | /* |
2 | * ifile.h - NILFS inode file | |
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 | * | |
4b420ab4 RK |
16 | * Written by Amagai Yoshiji. |
17 | * Revised by Ryusuke Konishi. | |
43bfb45e RK |
18 | * |
19 | */ | |
20 | ||
21 | #ifndef _NILFS_IFILE_H | |
22 | #define _NILFS_IFILE_H | |
23 | ||
24 | #include <linux/fs.h> | |
25 | #include <linux/buffer_head.h> | |
26 | #include <linux/nilfs2_fs.h> | |
27 | #include "mdt.h" | |
28 | #include "alloc.h" | |
29 | ||
43bfb45e RK |
30 | |
31 | static inline struct nilfs_inode * | |
32 | nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh) | |
33 | { | |
34 | void *kaddr = kmap(ibh->b_page); | |
4ad364ca | 35 | |
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36 | return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr); |
37 | } | |
38 | ||
39 | static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino, | |
40 | struct buffer_head *ibh) | |
41 | { | |
42 | kunmap(ibh->b_page); | |
43 | } | |
44 | ||
45 | int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **); | |
46 | int nilfs_ifile_delete_inode(struct inode *, ino_t); | |
47 | int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **); | |
48 | ||
c7ef972c VD |
49 | int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *); |
50 | ||
f1e89c86 RK |
51 | int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root, |
52 | size_t inode_size, struct nilfs_inode *raw_inode, | |
53 | struct inode **inodep); | |
79739565 | 54 | |
43bfb45e | 55 | #endif /* _NILFS_IFILE_H */ |