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fs/squashfs/squashfs_fs_sb.h 2.11 KB
81f7e3824   Eric Lee   Initial Release, ...
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  #ifndef SQUASHFS_FS_SB
  #define SQUASHFS_FS_SB
  /*
   * Squashfs
   *
   * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
   * Phillip Lougher <phillip@squashfs.org.uk>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2,
   * or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   *
   * squashfs_fs_sb.h
   */
  
  #include "squashfs_fs.h"
  
  struct squashfs_cache {
  	char			*name;
  	int			entries;
  	int			curr_blk;
  	int			next_blk;
  	int			num_waiters;
  	int			unused;
  	int			block_size;
  	int			pages;
  	spinlock_t		lock;
  	wait_queue_head_t	wait_queue;
  	struct squashfs_cache_entry *entry;
  };
  
  struct squashfs_cache_entry {
  	u64			block;
  	int			length;
  	int			refcount;
  	u64			next_index;
  	int			pending;
  	int			error;
  	int			num_waiters;
  	wait_queue_head_t	wait_queue;
  	struct squashfs_cache	*cache;
  	struct page		**page;
  	struct squashfs_page_actor	*actor;
  };
  
  struct squashfs_sb_info {
  	const struct squashfs_decompressor	*decompressor;
  	int					devblksize;
  	int					devblksize_log2;
  	struct squashfs_cache			*block_cache;
  	struct squashfs_cache			*fragment_cache;
  	struct squashfs_cache			*read_page;
  	int					next_meta_index;
  	__le64					*id_table;
  	__le64					*fragment_index;
  	__le64					*xattr_id_table;
  	struct mutex				meta_index_mutex;
  	struct meta_index			*meta_index;
  	struct squashfs_stream			*stream;
  	__le64					*inode_lookup_table;
  	u64					inode_table;
  	u64					directory_table;
  	u64					xattr_table;
  	unsigned int				block_size;
  	unsigned short				block_log;
  	long long				bytes_used;
  	unsigned int				inodes;
  	unsigned int				fragments;
  	int					xattr_ids;
  };
  #endif