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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
Phillip Lougherd7f2ff62011-05-26 10:39:56 +01007 * Phillip Lougher <phillip@squashfs.org.uk>
Phillip Lougherffae2cd2009-01-05 08:46:27 +00008 *
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;
Ajeet Yadavd7fbd892011-12-27 15:10:04 +053031 int curr_blk;
Phillip Lougherffae2cd2009-01-05 08:46:27 +000032 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};
54
55struct squashfs_sb_info {
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +010056 const struct squashfs_decompressor *decompressor;
57 int devblksize;
58 int devblksize_log2;
59 struct squashfs_cache *block_cache;
60 struct squashfs_cache *fragment_cache;
61 struct squashfs_cache *read_page;
62 int next_meta_index;
63 __le64 *id_table;
64 __le64 *fragment_index;
Phillip Lougher4b5397d2010-05-14 20:48:47 +010065 __le64 *xattr_id_table;
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +010066 struct mutex read_data_mutex;
67 struct mutex meta_index_mutex;
68 struct meta_index *meta_index;
69 void *stream;
70 __le64 *inode_lookup_table;
71 u64 inode_table;
72 u64 directory_table;
Phillip Lougher4b5397d2010-05-14 20:48:47 +010073 u64 xattr_table;
Phillip Lougher4c0f0bb2009-10-06 04:04:15 +010074 unsigned int block_size;
75 unsigned short block_log;
76 long long bytes_used;
77 unsigned int inodes;
Phillip Lougher4b5397d2010-05-14 20:48:47 +010078 int xattr_ids;
Phillip Lougherffae2cd2009-01-05 08:46:27 +000079};
80#endif