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review.shift-gmbh.com / SHIFTPHONES / android_kernel_shift_sdm845 / 9508c6b90b3f57ecea4e7a896cf8325400fc0c6e / . / fs / squashfs / squashfs.h
blob: 2e2751df8452e7c1173dbb4e58fef9130a4d6c79 [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
Phillip Lougherd7f2ff62011-05-26 10:39:56 +0100[diff] [blame]5 * Phillip Lougher <phillip@squashfs.org.uk>
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]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
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]30/* block.c */
31extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
Phillip Lougher118e1ef2009-03-05 00:31:12 +0000[diff] [blame]32 int, int);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]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);
Phillip Lougher82de6472011-05-20 02:26:43 +0100[diff] [blame]47extern void *squashfs_read_table(struct super_block *, u64, int);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]48
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +0100[diff] [blame]49/* decompressor.c */
50extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
Phillip Lougher9508c6b2013-11-13 02:56:26 +0000[diff] [blame^]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 *, void **,
57 struct buffer_head **, int, int, int, int, int);
58extern int squashfs_max_decompressors(void);
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +0100[diff] [blame]59
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]60/* export.c */
Phillip Lougherac51a0a2011-05-24 04:15:21 +0100[diff] [blame]61extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64,
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]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 *,
Phillip Lougher1cac63c2011-05-24 04:33:34 +0100[diff] [blame]67 u64, u64, unsigned int);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]68
69/* id.c */
70extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
Phillip Lougher37986f62011-05-24 04:05:22 +0100[diff] [blame]71extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64,
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]72 unsigned short);
73
74/* inode.c */
75extern struct inode *squashfs_iget(struct super_block *, long long,
76 unsigned int);
77extern int squashfs_read_inode(struct inode *, long long);
78
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]79/* xattr.c */
80extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t);
81
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]82/*
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]83 * Inodes, files, decompressor and xattr operations
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]84 */
85
86/* dir.c */
87extern const struct file_operations squashfs_dir_ops;
88
89/* export.c */
90extern const struct export_operations squashfs_export_ops;
91
92/* file.c */
93extern const struct address_space_operations squashfs_aops;
94
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]95/* inode.c */
96extern const struct inode_operations squashfs_inode_ops;
97
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]98/* namei.c */
99extern const struct inode_operations squashfs_dir_inode_ops;
100
101/* symlink.c */
102extern const struct address_space_operations squashfs_symlink_aops;
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]103extern const struct inode_operations squashfs_symlink_inode_ops;
104
105/* xattr.c */
Phillip Lougherf6db25a2010-05-23 03:29:26 +0100[diff] [blame]106extern const struct xattr_handler *squashfs_xattr_handlers[];