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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 | ||
28 | struct 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 | ||
41 | struct 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 | ||
54 | struct squashfs_sb_info { | |
55 | int devblksize; | |
56 | int devblksize_log2; | |
57 | struct squashfs_cache *block_cache; | |
58 | struct squashfs_cache *fragment_cache; | |
59 | struct squashfs_cache *read_page; | |
60 | int next_meta_index; | |
61 | __le64 *id_table; | |
62 | __le64 *fragment_index; | |
63 | unsigned int *fragment_index_2; | |
64 | struct mutex read_data_mutex; | |
65 | struct mutex meta_index_mutex; | |
66 | struct meta_index *meta_index; | |
67 | z_stream stream; | |
68 | __le64 *inode_lookup_table; | |
69 | u64 inode_table; | |
70 | u64 directory_table; | |
71 | unsigned int block_size; | |
72 | unsigned short block_log; | |
73 | long long bytes_used; | |
74 | unsigned int inodes; | |
75 | }; | |
76 | #endif |