Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-next
[~shefty/rdma-dev.git] / fs / squashfs / squashfs_fs_sb.h
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
28 struct 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
42 struct 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
55 struct squashfs_sb_info {
56         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;
65         __le64                                  *xattr_id_table;
66         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;
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