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/*
* Squashfs - a compressed read only filesystem for Linux
*
* Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
* Phillip Lougher <phillip@lougher.demon.co.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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* squashfs.h
*/
#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
#undef CONFIG_SQUASHFS_1_0_COMPATIBILITY
#endif
#ifdef SQUASHFS_TRACE
#define TRACE(s, args...) printk(KERN_NOTICE "SQUASHFS: "s, ## args)
#else
#define TRACE(s, args...) {}
#endif
#define ERROR(s, args...) printk(KERN_ERR "SQUASHFS error: "s, ## args)
#define SERROR(s, args...) do { \
if (!silent) \
printk(KERN_ERR "SQUASHFS error: "s, ## args);\
} while(0)
#define WARNING(s, args...) printk(KERN_WARNING "SQUASHFS: "s, ## args)
static inline struct squashfs_inode_info *SQUASHFS_I(struct inode *inode)
{
return list_entry(inode, struct squashfs_inode_info, vfs_inode);
}
#if defined(CONFIG_SQUASHFS_1_0_COMPATIBILITY ) || defined(CONFIG_SQUASHFS_2_0_COMPATIBILITY)
#define SQSH_EXTERN
extern unsigned int squashfs_read_data(struct super_block *s, char *buffer,
long long index, unsigned int length,
long long *next_index, int srclength);
extern int squashfs_get_cached_block(struct super_block *s, void *buffer,
long long block, unsigned int offset,
int length, long long *next_block,
unsigned int *next_offset);
extern void release_cached_fragment(struct squashfs_sb_info *msblk, struct
squashfs_cache_entry *fragment);
extern struct squashfs_cache_entry *get_cached_fragment(struct super_block
*s, long long start_block,
int length);
extern struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode, unsigned int inode_number);
extern const struct address_space_operations squashfs_symlink_aops;
extern const struct address_space_operations squashfs_aops;
extern struct inode_operations squashfs_dir_inode_ops;
#else
#define SQSH_EXTERN static
#endif
#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY
extern int squashfs_1_0_supported(struct squashfs_sb_info *msblk);
#else
static inline int squashfs_1_0_supported(struct squashfs_sb_info *msblk)
{
return 0;
}
#endif
#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY
extern int squashfs_2_0_supported(struct squashfs_sb_info *msblk);
#else
static inline int squashfs_2_0_supported(struct squashfs_sb_info *msblk)
{
return 0;
}
#endif
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