tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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@squashfs.org.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_warn("SQUASHFS: "s, ## args)
29
30/* block.c */
31extern int squashfs_read_data(struct super_block *, u64, int, u64 *,
32 struct squashfs_page_actor *);
33
34/* cache.c */
35extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
36extern void squashfs_cache_delete(struct squashfs_cache *);
37extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
38 struct squashfs_cache *, u64, int);
39extern void squashfs_cache_put(struct squashfs_cache_entry *);
40extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
41extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
42 int *, int);
43extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
44 u64, int);
45extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
46 u64, int);
47extern void *squashfs_read_table(struct super_block *, u64, int);
48
49/* decompressor.c */
50extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
51extern void *squashfs_decompressor_setup(struct super_block *, unsigned short);
52
53/* decompressor_xxx.c */
54extern void *squashfs_decompressor_create(struct squashfs_sb_info *, void *);
55extern void squashfs_decompressor_destroy(struct squashfs_sb_info *);
56extern int squashfs_decompress(struct squashfs_sb_info *, struct buffer_head **,
57 int, int, int, struct squashfs_page_actor *);
58extern int squashfs_max_decompressors(void);
59
60/* export.c */
61extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64,
62 unsigned int);
63
64/* fragment.c */
65extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
66extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
67 u64, u64, unsigned int);
68
69/* file.c */
70void squashfs_fill_page(struct page *, struct squashfs_cache_entry *, int, int);
71void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int,
72 int);
73
74/* file_xxx.c */
75extern int squashfs_readpage_block(struct page *, u64, int, int);
76
77/* id.c */
78extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
79extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64,
80 unsigned short);
81
82/* inode.c */
83extern struct inode *squashfs_iget(struct super_block *, long long,
84 unsigned int);
85extern int squashfs_read_inode(struct inode *, long long);
86
87/* xattr.c */
88extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t);
89
90/*
91 * Inodes, files, decompressor and xattr operations
92 */
93
94/* dir.c */
95extern const struct file_operations squashfs_dir_ops;
96
97/* export.c */
98extern const struct export_operations squashfs_export_ops;
99
100/* file.c */
101extern const struct address_space_operations squashfs_aops;
102
103/* inode.c */
104extern const struct inode_operations squashfs_inode_ops;
105
106/* namei.c */
107extern const struct inode_operations squashfs_dir_inode_ops;
108
109/* symlink.c */
110extern const struct address_space_operations squashfs_symlink_aops;
111extern const struct inode_operations squashfs_symlink_inode_ops;
112
113/* xattr.c */
114extern const struct xattr_handler *squashfs_xattr_handlers[];