squashfs.h revision f006b96e65d7092838983913afbd69fd8199d793
1/* 2 * Squashfs - a compressed read only filesystem for Linux 3 * 4 * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 5 * Phillip Lougher <phillip@lougher.demon.co.uk> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License 9 * as published by the Free Software Foundation; either version 2, 10 * or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 20 * 21 * squashfs.h 22 */ 23 24#define TRACE(s, args...) pr_debug("SQUASHFS: "s, ## args) 25 26#define ERROR(s, args...) pr_err("SQUASHFS error: "s, ## args) 27 28#define WARNING(s, args...) pr_warning("SQUASHFS: "s, ## args) 29 30static inline struct squashfs_inode_info *squashfs_i(struct inode *inode) 31{ 32 return list_entry(inode, struct squashfs_inode_info, vfs_inode); 33} 34 35/* block.c */ 36extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *, 37 int); 38 39/* cache.c */ 40extern struct squashfs_cache *squashfs_cache_init(char *, int, int); 41extern void squashfs_cache_delete(struct squashfs_cache *); 42extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *, 43 struct squashfs_cache *, u64, int); 44extern void squashfs_cache_put( struct squashfs_cache_entry *); 45extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int); 46extern int squashfs_read_metadata(struct super_block *, void *, u64 *, 47 int *, int); 48extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *, 49 u64, int); 50extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *, 51 u64, int); 52extern int squashfs_read_table(struct super_block *, void *, u64, int); 53 54/* export.c */ 55extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, 56 unsigned int); 57 58/* fragment.c */ 59extern int squashfs_frag_location(struct super_block *, unsigned int, u64 *); 60extern __le64 *squashfs_read_fragment_index_table(struct super_block *, 61 u64, unsigned int); 62 63/* id.c */ 64extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *); 65extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, 66 unsigned short); 67 68/* inode.c */ 69extern struct inode *squashfs_iget(struct super_block *, long long, 70 unsigned int); 71extern int squashfs_read_inode(struct inode *, long long); 72 73/* 74 * Inodes and files operations 75 */ 76 77/* dir.c */ 78extern const struct file_operations squashfs_dir_ops; 79 80/* export.c */ 81extern const struct export_operations squashfs_export_ops; 82 83/* file.c */ 84extern const struct address_space_operations squashfs_aops; 85 86/* namei.c */ 87extern const struct inode_operations squashfs_dir_inode_ops; 88 89/* symlink.c */ 90extern const struct address_space_operations squashfs_symlink_aops; 91