1#ifndef SQUASHFS_FS_SB
2#define SQUASHFS_FS_SB
3/*
4 * Squashfs
5 *
6 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
7 * Phillip Lougher <phillip@lougher.demon.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2,
12 * or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
22 *
23 * squashfs_fs_sb.h
24 */
25
26#include "squashfs_fs.h"
27
28struct squashfs_cache_entry {
29	long long		block;
30	int			length;
31	int			locked;
32	long long		next_index;
33	char			pending;
34	char			error;
35	int			waiting;
36	wait_queue_head_t	wait_queue;
37	char			*data;
38};
39
40struct squashfs_cache {
41	char			*name;
42	int			entries;
43	int			block_size;
44	int			next_blk;
45	int			waiting;
46	int			unused;
47	int			use_vmalloc;
48	spinlock_t		lock;
49	wait_queue_head_t	wait_queue;
50	struct squashfs_cache_entry entry[0];
51};
52
53struct squashfs_sb_info {
54	int			devblksize;
55	int			devblksize_log2;
56	struct squashfs_cache	*block_cache;
57	struct squashfs_cache	*fragment_cache;
58	int			next_meta_index;
59	__le64			*id_table;
60	__le64			*fragment_index;
61	unsigned int		*fragment_index_2;
62	char			*read_page;
63	struct mutex		read_data_mutex;
64	struct mutex		read_page_mutex;
65	struct mutex		meta_index_mutex;
66	struct meta_index	*meta_index;
67	z_stream		stream;
68	__le64			*inode_lookup_table;
69	long long		inode_table;
70	long long		directory_table;
71	unsigned int		block_size;
72	unsigned short		block_log;
73	long long		bytes_used;
74	unsigned int		inodes;
75};
76#endif
77