release/src-rt-6.x.4708/linux/linux-2.6.36/fs/squashfs/squashfs.h

   1 /* Modified by Broadcom Corp. Portions Copyright (c) Broadcom Corp, 2012. */
   2 /*
   3  * Squashfs - a compressed read only filesystem for Linux
   4  *
   5  * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
   6  * Phillip Lougher <phillip@lougher.demon.co.uk>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation; either version 2,
  11  * or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  *
  22  * squashfs.h
  23  */
  24
  25 #define TRACE(s, args...)       pr_debug("SQUASHFS: "s, ## args)
  26
  27 #define ERROR(s, args...)       pr_err("SQUASHFS error: "s, ## args)
  28
  29 #define WARNING(s, args...)     pr_warning("SQUASHFS: "s, ## args)
  30
  31 /* block.c */
  32 extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
  33                                 int, int);
  34
  35 /* cache.c */
  36 extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
  37 extern void squashfs_cache_delete(struct squashfs_cache *);
  38 extern struct squashfs_cache_entry *squashfs_cache_get(struct super_block *,
  39                                 struct squashfs_cache *, u64, int);
  40 extern void squashfs_cache_put(struct squashfs_cache_entry *);
  41 extern int squashfs_copy_data(void *, struct squashfs_cache_entry *, int, int);
  42 extern int squashfs_read_metadata(struct super_block *, void *, u64 *,
  43                                 int *, int);
  44 extern struct squashfs_cache_entry *squashfs_get_fragment(struct super_block *,
  45                                 u64, int);
  46 extern struct squashfs_cache_entry *squashfs_get_datablock(struct super_block *,
  47                                 u64, int);
  48 extern int squashfs_read_table(struct super_block *, void *, u64, int);
  49
  50 /* decompressor.c */
  51 extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
  52 extern void *squashfs_decompressor_init(struct super_block *, unsigned short);
  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 /* xattr.c */
  74 extern ssize_t squashfs_listxattr(struct dentry *, char *, size_t);
  75
  76 /*
  77  * Inodes, files,  decompressor and xattr operations
  78  */
  79
  80 /* dir.c */
  81 extern const struct file_operations squashfs_dir_ops;
  82
  83 /* export.c */
  84 extern const struct export_operations squashfs_export_ops;
  85
  86 /* file.c */
  87 extern const struct address_space_operations squashfs_aops;
  88
  89 /* inode.c */
  90 extern const struct inode_operations squashfs_inode_ops;
  91
  92 /* namei.c */
  93 extern const struct inode_operations squashfs_dir_inode_ops;
  94
  95 /* symlink.c */
  96 extern const struct address_space_operations squashfs_symlink_aops;
  97 extern const struct inode_operations squashfs_symlink_inode_ops;
  98
  99 /* xattr.c */
 100 extern const struct xattr_handler *squashfs_xattr_handlers[];
 101
 102 /* zlib_wrapper.c */
 103 extern const struct squashfs_decompressor squashfs_zlib_comp_ops;