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@squashfs.org.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 {
29	char			*name;
30	int			entries;
31	int			curr_blk;
32	int			next_blk;
33	int			num_waiters;
34	int			unused;
35	int			block_size;
36	int			pages;
37	spinlock_t		lock;
38	wait_queue_head_t	wait_queue;
39	struct squashfs_cache_entry *entry;
40};
41
42struct squashfs_cache_entry {
43	u64			block;
44	int			length;
45	int			refcount;
46	u64			next_index;
47	int			pending;
48	int			error;
49	int			num_waiters;
50	wait_queue_head_t	wait_queue;
51	struct squashfs_cache	*cache;
52	void			**data;
53	struct squashfs_page_actor	*actor;
54};
55
56struct squashfs_sb_info {
57	const struct squashfs_decompressor	*decompressor;
58	int					devblksize;
59	int					devblksize_log2;
60	struct squashfs_cache			*block_cache;
61	struct squashfs_cache			*fragment_cache;
62	struct squashfs_cache			*read_page;
63	int					next_meta_index;
64	__le64					*id_table;
65	__le64					*fragment_index;
66	__le64					*xattr_id_table;
67	struct mutex				meta_index_mutex;
68	struct meta_index			*meta_index;
69	struct squashfs_stream			*stream;
70	__le64					*inode_lookup_table;
71	u64					inode_table;
72	u64					directory_table;
73	u64					xattr_table;
74	unsigned int				block_size;
75	unsigned short				block_log;
76	long long				bytes_used;
77	unsigned int				inodes;
78	int					xattr_ids;
79};
80#endif
81