1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef SQUASHFS_FS_SB
3 #define SQUASHFS_FS_SB
4 /*
5  * Squashfs
6  *
7  * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
8  * Phillip Lougher <phillip@squashfs.org.uk>
9  *
10  * squashfs_fs_sb.h
11  */
12 
13 #include "squashfs_fs.h"
14 
15 struct squashfs_cache {
16 	char			*name;
17 	int			entries;
18 	int			curr_blk;
19 	int			next_blk;
20 	int			num_waiters;
21 	int			unused;
22 	int			block_size;
23 	int			pages;
24 	spinlock_t		lock;
25 	wait_queue_head_t	wait_queue;
26 	struct squashfs_cache_entry *entry;
27 };
28 
29 struct squashfs_cache_entry {
30 	u64			block;
31 	int			length;
32 	int			refcount;
33 	u64			next_index;
34 	int			pending;
35 	int			error;
36 	int			num_waiters;
37 	wait_queue_head_t	wait_queue;
38 	struct squashfs_cache	*cache;
39 	void			**data;
40 	struct squashfs_page_actor	*actor;
41 };
42 
43 struct squashfs_sb_info {
44 	const struct squashfs_decompressor	*decompressor;
45 	int					devblksize;
46 	int					devblksize_log2;
47 	struct squashfs_cache			*block_cache;
48 	struct squashfs_cache			*fragment_cache;
49 	struct squashfs_cache			*read_page;
50 	int					next_meta_index;
51 	__le64					*id_table;
52 	__le64					*fragment_index;
53 	__le64					*xattr_id_table;
54 	struct mutex				meta_index_mutex;
55 	struct meta_index			*meta_index;
56 	void					*stream;
57 	__le64					*inode_lookup_table;
58 	u64					inode_table;
59 	u64					directory_table;
60 	u64					xattr_table;
61 	unsigned int				block_size;
62 	unsigned short				block_log;
63 	long long				bytes_used;
64 	unsigned int				inodes;
65 	unsigned int				fragments;
66 	unsigned int				xattr_ids;
67 	unsigned int				ids;
68 	bool					panic_on_errors;
69 	const struct squashfs_decompressor_thread_ops *thread_ops;
70 	int					max_thread_num;
71 };
72 #endif
73