Gitiles
Code Review Sign In
review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 2572da44a51192ad181482c1989e66e5eb47dcbe / . / fs / squashfs / squashfs.h
blob: 9783e01c81004106db75a70298d43d27f1f2c334 [file] [log] [blame]
Thomas Gleixner68252eb2019-05-20 19:08:00 +0200[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-or-later */
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]2/*
3 * Squashfs - a compressed read only filesystem for Linux
4 *
5 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
Phillip Lougherd7f2ff62011-05-26 10:39:56 +0100[diff] [blame]6 * Phillip Lougher <phillip@squashfs.org.uk>
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]7 *
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]8 * squashfs.h
9 */
10
11#define TRACE(s, args...) pr_debug("SQUASHFS: "s, ## args)
12
13#define ERROR(s, args...) pr_err("SQUASHFS error: "s, ## args)
14
Fabian Frederick22010832014-06-04 16:05:52 -0700[diff] [blame]15#define WARNING(s, args...) pr_warn("SQUASHFS: "s, ## args)
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]16
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]17/* block.c */
Phillip Lougher846b7302013-11-18 02:59:12 +0000[diff] [blame]18extern int squashfs_read_data(struct super_block *, u64, int, u64 *,
19 struct squashfs_page_actor *);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]20
21/* cache.c */
22extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
23extern void squashfs_cache_delete(struct squashfs_cache *);
24extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
25 struct squashfs_cache *, u64, int);
26extern void squashfs_cache_put(struct squashfs_cache_entry *);
27extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
28extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
29 int *, int);
30extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
31 u64, int);
32extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
33 u64, int);
Phillip Lougher82de6472011-05-20 02:26:43 +0100[diff] [blame]34extern void *squashfs_read_table(struct super_block *, u64, int);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]35
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +0100[diff] [blame]36/* decompressor.c */
37extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
Phillip Lougher9508c6b2013-11-13 02:56:26 +0000[diff] [blame]38extern void *squashfs_decompressor_setup(struct super_block *, unsigned short);
39
40/* decompressor_xxx.c */
41extern void *squashfs_decompressor_create(struct squashfs_sb_info *, void *);
42extern void squashfs_decompressor_destroy(struct squashfs_sb_info *);
Philippe Liard93e72b32020-06-01 21:45:23 -0700[diff] [blame]43extern int squashfs_decompress(struct squashfs_sb_info *, struct bio *,
44 int, int, struct squashfs_page_actor *);
Phillip Lougher9508c6b2013-11-13 02:56:26 +0000[diff] [blame]45extern int squashfs_max_decompressors(void);
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +0100[diff] [blame]46
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]47/* export.c */
Phillip Lougherac51a0a2011-05-24 04:15:21 +0100[diff] [blame]48extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64,
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]49 unsigned int);
50
51/* fragment.c */
52extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
53extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
Phillip Lougher1cac63c2011-05-24 04:33:34 +0100[diff] [blame]54 u64, u64, unsigned int);
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]55
Phillip Lougher5f55dbc2013-10-31 19:24:27 +0000[diff] [blame]56/* file.c */
Linus Torvaldscdbb65c2018-08-01 10:38:43 -0700[diff] [blame]57void squashfs_fill_page(struct page *, struct squashfs_cache_entry *, int, int);
Phillip Lougher5f55dbc2013-10-31 19:24:27 +0000[diff] [blame]58void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int,
59 int);
60
61/* file_xxx.c */
Phillip Loughera3f94cb2018-08-02 16:45:15 +0100[diff] [blame]62extern int squashfs_readpage_block(struct page *, u64, int, int);
Phillip Lougher5f55dbc2013-10-31 19:24:27 +0000[diff] [blame]63
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]64/* id.c */
65extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
Phillip Lougher37986f62011-05-24 04:05:22 +0100[diff] [blame]66extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64,
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]67 unsigned short);
68
69/* inode.c */
70extern struct inode *squashfs_iget(struct super_block *, long long,
71 unsigned int);
72extern int squashfs_read_inode(struct inode *, long long);
73
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]74/* xattr.c */
75extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t);
76
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]77/*
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]78 * Inodes, files, decompressor and xattr operations
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]79 */
80
81/* dir.c */
82extern const struct file_operations squashfs_dir_ops;
83
84/* export.c */
85extern const struct export_operations squashfs_export_ops;
86
87/* file.c */
88extern const struct address_space_operations squashfs_aops;
89
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]90/* inode.c */
91extern const struct inode_operations squashfs_inode_ops;
92
Phillip Lougherffae2cd2009-01-05 08:46:27 +0000[diff] [blame]93/* namei.c */
94extern const struct inode_operations squashfs_dir_inode_ops;
95
96/* symlink.c */
97extern const struct address_space_operations squashfs_symlink_aops;
Phillip Lougher67f66cc2010-05-17 04:06:56 +0100[diff] [blame]98extern const struct inode_operations squashfs_symlink_inode_ops;
99
100/* xattr.c */
Phillip Lougherf6db25a2010-05-23 03:29:26 +0100[diff] [blame]101extern const struct xattr_handler *squashfs_xattr_handlers[];