2 * Squashfs - a compressed read only filesystem for Linux
4 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
5 * Phillip Lougher <phillip@lougher.demon.co.uk>
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.
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.
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.
24 #define TRACE(s, args...) pr_debug("SQUASHFS: "s, ## args)
26 #define ERROR(s, args...) pr_err("SQUASHFS error: "s, ## args)
28 #define WARNING(s, args...) pr_warning("SQUASHFS: "s, ## args)
30 static inline struct squashfs_inode_info *squashfs_i(struct inode *inode)
32 return list_entry(inode, struct squashfs_inode_info, vfs_inode);
36 extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
40 extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
41 extern void squashfs_cache_delete(struct squashfs_cache *);
42 extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
43 struct squashfs_cache *, u64, int);
44 extern void squashfs_cache_put(struct squashfs_cache_entry *);
45 extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
46 extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
48 extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
50 extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
52 extern int squashfs_read_table(struct super_block *, void *, u64, int);
55 extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
58 extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64,
62 extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
63 extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
67 extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
68 extern __le64 *squashfs_read_id_index_table(struct super_block *, u64,
72 extern struct inode *squashfs_iget(struct super_block *, long long,
74 extern int squashfs_read_inode(struct inode *, long long);
77 extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t);
80 * Inodes, files, decompressor and xattr operations
84 extern const struct file_operations squashfs_dir_ops;
87 extern const struct export_operations squashfs_export_ops;
90 extern const struct address_space_operations squashfs_aops;
93 extern const struct inode_operations squashfs_inode_ops;
96 extern const struct inode_operations squashfs_dir_inode_ops;
99 extern const struct address_space_operations squashfs_symlink_aops;
100 extern const struct inode_operations squashfs_symlink_inode_ops;
103 extern const struct xattr_handler *squashfs_xattr_handlers[];
106 extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
109 extern const struct squashfs_decompressor squashfs_lzo_comp_ops;