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gerrit-public.fairphone.software / kernel / msm-4.9 / f1a40359f8d8ba073257ed31a513e492621bcbc5 / . / fs / squashfs / squashfs.h
blob: 9c2f76a1c50bb721c1cc2c836d78d302ad1c589f [file] [log] [blame]
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]1/*
2 * Squashfs - a compressed read only filesystem for Linux
3 *
4 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
5 * Phillip Lougher <phillip@lougher.demon.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2,
10 * or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 *
21 * squashfs.h
22 */
23
24#define TRACE(s, args...) pr_debug("SQUASHFS: "s, ## args)
25
26#define ERROR(s, args...) pr_err("SQUASHFS error: "s, ## args)
27
28#define WARNING(s, args...) pr_warning("SQUASHFS: "s, ## args)
29
30static inline struct squashfs_inode_info *squashfs_i(struct inode *inode)
31{
32 return list_entry(inode, struct squashfs_inode_info, vfs_inode);
33}
34
35/* block.c */
36extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
Phillip Lougher118e1ef2009-03-05 00:31:12 +0000[diff] [blame]37 int, int);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]38
39/* cache.c */
40extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
41extern void squashfs_cache_delete(struct squashfs_cache *);
42extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
43 struct squashfs_cache *, u64, int);
44extern void squashfs_cache_put(struct squashfs_cache_entry *);
45extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
46extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
47 int *, int);
48extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
49 u64, int);
50extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
51 u64, int);
52extern int squashfs_read_table(struct super_block *, void *, u64, int);
53
54/* export.c */
55extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64,
56 unsigned int);
57
58/* fragment.c */
59extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
60extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
61 u64, unsigned int);
62
63/* id.c */
64extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
65extern __le64 *squashfs_read_id_index_table(struct super_block *, u64,
66 unsigned short);
67
68/* inode.c */
69extern struct inode *squashfs_iget(struct super_block *, long long,
70 unsigned int);
71extern int squashfs_read_inode(struct inode *, long long);
72
Phillip Loughere6a6d372009-09-22 19:25:24 +0100[diff] [blame]73/* zlib_wrapper.c */
Phillip Lougherf1a40352009-09-23 19:04:49 +0100[diff] [blame^]74extern void *squashfs_zlib_init(void);
75extern void squashfs_zlib_free(void *);
Phillip Loughere6a6d372009-09-22 19:25:24 +0100[diff] [blame]76extern int squashfs_zlib_uncompress(struct squashfs_sb_info *, void **,
77 struct buffer_head **, int, int, int, int, int);
78
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]79/*
80 * Inodes and files operations
81 */
82
83/* dir.c */
84extern const struct file_operations squashfs_dir_ops;
85
86/* export.c */
87extern const struct export_operations squashfs_export_ops;
88
89/* file.c */
90extern const struct address_space_operations squashfs_aops;
91
92/* namei.c */
93extern const struct inode_operations squashfs_dir_inode_ops;
94
95/* symlink.c */
96extern const struct address_space_operations squashfs_symlink_aops;