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 (at) 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 30 static 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 */ 36 extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *, 37 int); 38 39 /* cache.c */ 40 extern struct squashfs_cache *squashfs_cache_init(char *, int, int); 41 extern void squashfs_cache_delete(struct squashfs_cache *); 42 extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *, 43 struct squashfs_cache *, u64, int); 44 extern void squashfs_cache_put(struct squashfs_cache_entry *); 45 extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int); 46 extern int squashfs_read_metadata(struct super_block *, void *, u64 *, 47 int *, int); 48 extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *, 49 u64, int); 50 extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *, 51 u64, int); 52 extern int squashfs_read_table(struct super_block *, void *, u64, int); 53 54 /* export.c */ 55 extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, 56 unsigned int); 57 58 /* fragment.c */ 59 extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *); 60 extern __le64 *squashfs_read_fragment_index_table(struct super_block *, 61 u64, unsigned int); 62 63 /* id.c */ 64 extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *); 65 extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, 66 unsigned short); 67 68 /* inode.c */ 69 extern struct inode *squashfs_iget(struct super_block *, long long, 70 unsigned int); 71 extern int squashfs_read_inode(struct inode *, long long); 72 73 /* 74 * Inodes and files operations 75 */ 76 77 /* dir.c */ 78 extern const struct file_operations squashfs_dir_ops; 79 80 /* export.c */ 81 extern const struct export_operations squashfs_export_ops; 82 83 /* file.c */ 84 extern const struct address_space_operations squashfs_aops; 85 86 /* namei.c */ 87 extern const struct inode_operations squashfs_dir_inode_ops; 88 89 /* symlink.c */ 90 extern const struct address_space_operations squashfs_symlink_aops; 91
