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Phillip Lougherffae2cd2009-01-05 08:46:27 +00001#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 {
29 char *name;
30 int entries;
31 int next_blk;
32 int num_waiters;
33 int unused;
34 int block_size;
35 int pages;
36 spinlock_t lock;
37 wait_queue_head_t wait_queue;
38 struct squashfs_cache_entry *entry;
39};
40
41struct squashfs_cache_entry {
42 u64 block;
43 int length;
44 int refcount;
45 u64 next_index;
46 int pending;
47 int error;
48 int num_waiters;
49 wait_queue_head_t wait_queue;
50 struct squashfs_cache *cache;
51 void **data;
52};
53
54struct squashfs_sb_info {
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +010055 const struct squashfs_decompressor *decompressor;
56 int devblksize;
57 int devblksize_log2;
58 struct squashfs_cache *block_cache;
59 struct squashfs_cache *fragment_cache;
60 struct squashfs_cache *read_page;
61 int next_meta_index;
62 __le64 *id_table;
63 __le64 *fragment_index;
Phillip Lougher4b5397d2010-05-14 20:48:47 +010064 __le64 *xattr_id_table;
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +010065 struct mutex read_data_mutex;
66 struct mutex meta_index_mutex;
67 struct meta_index *meta_index;
68 void *stream;
69 __le64 *inode_lookup_table;
70 u64 inode_table;
71 u64 directory_table;
Phillip Lougher4b5397d2010-05-14 20:48:47 +010072 u64 xattr_table;
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +010073 unsigned int block_size;
74 unsigned short block_log;
75 long long bytes_used;
76 unsigned int inodes;
Phillip Lougher4b5397d2010-05-14 20:48:47 +010077 int xattr_ids;
Phillip Lougherffae2cd2009-01-05 08:46:27 +000078};
79#endif