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 struct squashfs_page_actor *actor; 54 }; 55 56 struct squashfs_sb_info { 57 const struct squashfs_decompressor *decompressor; 58 int devblksize; 59 int devblksize_log2; 60 struct squashfs_cache *block_cache; 61 struct squashfs_cache *fragment_cache; 62 struct squashfs_cache *read_page; 63 int next_meta_index; 64 __le64 *id_table; 65 __le64 *fragment_index; 66 __le64 *xattr_id_table; 67 struct mutex meta_index_mutex; 68 struct meta_index *meta_index; 69 struct squashfs_stream *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 unsigned int fragments; 79 int xattr_ids; 80 }; 81 #endif 82