6 * Copyright (c) 2002, 2003, 2004, 2005, 2006
7 * Phillip Lougher <phillip@lougher.org.uk>
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.
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.
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 #include <linux/squashfs_fs.h>
28 struct squashfs_cache {
35 struct squashfs_fragment_cache {
42 struct squashfs_sb_info {
43 struct squashfs_super_block sblk;
47 struct squashfs_cache *block_cache;
48 struct squashfs_fragment_cache *fragment;
54 long long *fragment_index;
55 unsigned int *fragment_index_2;
56 unsigned int read_size;
59 struct semaphore read_data_mutex;
60 struct semaphore read_page_mutex;
61 struct semaphore block_cache_mutex;
62 struct semaphore fragment_mutex;
63 struct semaphore meta_index_mutex;
64 wait_queue_head_t waitq;
65 wait_queue_head_t fragment_wait_queue;
66 struct meta_index *meta_index;
68 long long *inode_lookup_table;
69 int (*read_inode)(struct inode *i, squashfs_inode_t \
71 long long (*read_blocklist)(struct inode *inode, int \
72 index, int readahead_blks, char *block_list, \
73 unsigned short **block_p, unsigned int *bsize);
74 int (*read_fragment_index_table)(struct super_block *s);