fs/hfsplus/hfsplus_fs.h - arm/linux - Git at Google


            
            /*

            
             *  linux/include/linux/hfsplus_fs.h

            
             *

            
             * Copyright (C) 1999

            
             * Brad Boyer (flar@pants.nu)

            
             * (C) 2003 Ardis Technologies <roman@ardistech.com>

            
             *

            
             */


            #ifndef _LINUX_HFSPLUS_FS_H

            
            #define _LINUX_HFSPLUS_FS_H


            #include <linux/fs.h>

            
            #include <linux/buffer_head.h>

            
            #include "hfsplus_raw.h"


            #define DBG_BNODE_REFS	0x00000001

            
            #define DBG_BNODE_MOD	0x00000002

            
            #define DBG_CAT_MOD	0x00000004

            
            #define DBG_INODE	0x00000008

            
            #define DBG_SUPER	0x00000010

            
            #define DBG_EXTENT	0x00000020

            
            #define DBG_BITMAP	0x00000040


            //#define DBG_MASK	(DBG_EXTENT|DBG_INODE|DBG_BNODE_MOD)

            
            //#define DBG_MASK	(DBG_BNODE_MOD|DBG_CAT_MOD|DBG_INODE)

            
            //#define DBG_MASK	(DBG_CAT_MOD|DBG_BNODE_REFS|DBG_INODE|DBG_EXTENT)

            
            #define DBG_MASK	(0)


            #define dprint(flg, fmt, args...) \

            
            	if (flg & DBG_MASK) printk(fmt , ## args)


            /* Runtime config options */

            
            #define HFSPLUS_DEF_CR_TYPE    0x3F3F3F3F  /* '????' */


            #define HFSPLUS_TYPE_DATA 0x00

            
            #define HFSPLUS_TYPE_RSRC 0xFF


            typedef int (*btree_keycmp)(const hfsplus_btree_key *, const hfsplus_btree_key *);


            #define NODE_HASH_SIZE	256


            /* An HFS+ BTree held in memory */

            
            struct hfs_btree {

            
            	struct super_block *sb;

            
            	struct inode *inode;

            
            	btree_keycmp keycmp;


            	u32 cnid;

            
            	u32 root;

            
            	u32 leaf_count;

            
            	u32 leaf_head;

            
            	u32 leaf_tail;

            
            	u32 node_count;

            
            	u32 free_nodes;

            
            	u32 attributes;


            	unsigned int node_size;

            
            	unsigned int node_size_shift;

            
            	unsigned int max_key_len;

            
            	unsigned int depth;


            	//unsigned int map1_size, map_size;

            
            	struct semaphore tree_lock;


            	unsigned int pages_per_bnode;

            
            	spinlock_t hash_lock;

            
            	struct hfs_bnode *node_hash[NODE_HASH_SIZE];

            
            	int node_hash_cnt;

            
            };


            struct page;


            /* An HFS+ BTree node in memory */

            
            struct hfs_bnode {

            
            	struct hfs_btree *tree;


            	u32 prev;

            
            	u32 this;

            
            	u32 next;

            
            	u32 parent;


            	u16 num_recs;

            
            	u8 type;

            
            	u8 height;


            	struct hfs_bnode *next_hash;

            
            	unsigned long flags;

            
            	wait_queue_head_t lock_wq;

            
            	atomic_t refcnt;

            
            	unsigned int page_offset;

            
            	struct page *page[0];

            
            };


            #define HFS_BNODE_LOCK		0

            
            #define HFS_BNODE_ERROR		1

            
            #define HFS_BNODE_NEW		2

            
            #define HFS_BNODE_DIRTY		3

            
            #define HFS_BNODE_DELETED	4


            /*

            
             * HFS+ superblock info (built from Volume Header on disk)

            
             */


            struct hfsplus_vh;

            
            struct hfs_btree;


            struct hfsplus_sb_info {

            
            	struct buffer_head *s_vhbh;

            
            	struct hfsplus_vh *s_vhdr;

            
            	struct hfs_btree *ext_tree;

            
            	struct hfs_btree *cat_tree;

            
            	struct hfs_btree *attr_tree;

            
            	struct inode *alloc_file;

            
            	struct inode *hidden_dir;

            
            	struct nls_table *nls;


            	/* Runtime variables */

            
            	u32 blockoffset;

            
            	u32 sect_count;

            
            	int fs_shift;


            	/* Stuff in host order from Vol Header */

            
            	u32 alloc_blksz;

            
            	int alloc_blksz_shift;

            
            	u32 total_blocks;

            
            	u32 free_blocks;

            
            	u32 next_alloc;

            
            	u32 next_cnid;

            
            	u32 file_count;

            
            	u32 folder_count;

            
            	u32 data_clump_blocks, rsrc_clump_blocks;


            	/* Config options */

            
            	u32 creator;

            
            	u32 type;


            	umode_t umask;

            
            	uid_t uid;

            
            	gid_t gid;


            	int part, session;


            	unsigned long flags;


            	struct hlist_head rsrc_inodes;

            
            };


            #define HFSPLUS_SB_WRITEBACKUP	0x0001

            
            #define HFSPLUS_SB_NODECOMPOSE	0x0002

            
            #define HFSPLUS_SB_FORCE	0x0004

            
            #define HFSPLUS_SB_HFSX		0x0008


            struct hfsplus_inode_info {

            
            	struct semaphore extents_lock;

            
            	u32 clump_blocks, alloc_blocks;

            
            	sector_t fs_blocks;

            
            	/* Allocation extents from catalog record or volume header */

            
            	hfsplus_extent_rec first_extents;

            
            	u32 first_blocks;

            
            	hfsplus_extent_rec cached_extents;

            
            	u32 cached_start, cached_blocks;

            
            	atomic_t opencnt;


            	struct inode *rsrc_inode;

            
            	unsigned long flags;


            	__be32 create_date;

            
            	/* Device number in hfsplus_permissions in catalog */

            
            	u32 dev;

            
            	/* BSD system and user file flags */

            
            	u8 rootflags;

            
            	u8 userflags;


            	struct list_head open_dir_list;

            
            	loff_t phys_size;

            
            	struct inode vfs_inode;

            
            };


            #define HFSPLUS_FLG_RSRC	0x0001

            
            #define HFSPLUS_FLG_EXT_DIRTY	0x0002

            
            #define HFSPLUS_FLG_EXT_NEW	0x0004


            #define HFSPLUS_IS_DATA(inode)   (!(HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC))

            
            #define HFSPLUS_IS_RSRC(inode)   (HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC)


            struct hfs_find_data {

            
            	/* filled by caller */

            
            	hfsplus_btree_key *search_key;

            
            	hfsplus_btree_key *key;

            
            	/* filled by find */

            
            	struct hfs_btree *tree;

            
            	struct hfs_bnode *bnode;

            
            	/* filled by findrec */

            
            	int record;

            
            	int keyoffset, keylength;

            
            	int entryoffset, entrylength;

            
            };


            struct hfsplus_readdir_data {

            
            	struct list_head list;

            
            	struct file *file;

            
            	struct hfsplus_cat_key key;

            
            };


            #define hfs_btree_open hfsplus_btree_open

            
            #define hfs_btree_close hfsplus_btree_close

            
            #define hfs_btree_write hfsplus_btree_write

            
            #define hfs_bmap_alloc hfsplus_bmap_alloc

            
            #define hfs_bmap_free hfsplus_bmap_free

            
            #define hfs_bnode_read hfsplus_bnode_read

            
            #define hfs_bnode_read_u16 hfsplus_bnode_read_u16

            
            #define hfs_bnode_read_u8 hfsplus_bnode_read_u8

            
            #define hfs_bnode_read_key hfsplus_bnode_read_key

            
            #define hfs_bnode_write hfsplus_bnode_write

            
            #define hfs_bnode_write_u16 hfsplus_bnode_write_u16

            
            #define hfs_bnode_clear hfsplus_bnode_clear

            
            #define hfs_bnode_copy hfsplus_bnode_copy

            
            #define hfs_bnode_move hfsplus_bnode_move

            
            #define hfs_bnode_dump hfsplus_bnode_dump

            
            #define hfs_bnode_unlink hfsplus_bnode_unlink

            
            #define hfs_bnode_findhash hfsplus_bnode_findhash

            
            #define hfs_bnode_find hfsplus_bnode_find

            
            #define hfs_bnode_unhash hfsplus_bnode_unhash

            
            #define hfs_bnode_free hfsplus_bnode_free

            
            #define hfs_bnode_create hfsplus_bnode_create

            
            #define hfs_bnode_get hfsplus_bnode_get

            
            #define hfs_bnode_put hfsplus_bnode_put

            
            #define hfs_brec_lenoff hfsplus_brec_lenoff

            
            #define hfs_brec_keylen hfsplus_brec_keylen

            
            #define hfs_brec_insert hfsplus_brec_insert

            
            #define hfs_brec_remove hfsplus_brec_remove

            
            #define hfs_find_init hfsplus_find_init

            
            #define hfs_find_exit hfsplus_find_exit

            
            #define __hfs_brec_find __hplusfs_brec_find

            
            #define hfs_brec_find hfsplus_brec_find

            
            #define hfs_brec_read hfsplus_brec_read

            
            #define hfs_brec_goto hfsplus_brec_goto

            
            #define hfs_part_find hfsplus_part_find


            /*

            
             * definitions for ext2 flag ioctls (linux really needs a generic

            
             * interface for this).

            
             */


            /* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support

            
             * chattr/lsattr */

            
            #define HFSPLUS_IOC_EXT2_GETFLAGS	FS_IOC_GETFLAGS

            
            #define HFSPLUS_IOC_EXT2_SETFLAGS	FS_IOC_SETFLAGS


            /*

            
             * Functions in any *.c used in other files

            
             */


            /* bitmap.c */

            
            int hfsplus_block_allocate(struct super_block *, u32, u32, u32 *);

            
            int hfsplus_block_free(struct super_block *, u32, u32);


            /* btree.c */

            
            struct hfs_btree *hfs_btree_open(struct super_block *, u32);

            
            void hfs_btree_close(struct hfs_btree *);

            
            void hfs_btree_write(struct hfs_btree *);

            
            struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *);

            
            void hfs_bmap_free(struct hfs_bnode *);


            /* bnode.c */

            
            void hfs_bnode_read(struct hfs_bnode *, void *, int, int);

            
            u16 hfs_bnode_read_u16(struct hfs_bnode *, int);

            
            u8 hfs_bnode_read_u8(struct hfs_bnode *, int);

            
            void hfs_bnode_read_key(struct hfs_bnode *, void *, int);

            
            void hfs_bnode_write(struct hfs_bnode *, void *, int, int);

            
            void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);

            
            void hfs_bnode_clear(struct hfs_bnode *, int, int);

            
            void hfs_bnode_copy(struct hfs_bnode *, int,

            
            		    struct hfs_bnode *, int, int);

            
            void hfs_bnode_move(struct hfs_bnode *, int, int, int);

            
            void hfs_bnode_dump(struct hfs_bnode *);

            
            void hfs_bnode_unlink(struct hfs_bnode *);

            
            struct hfs_bnode *hfs_bnode_findhash(struct hfs_btree *, u32);

            
            struct hfs_bnode *hfs_bnode_find(struct hfs_btree *, u32);

            
            void hfs_bnode_unhash(struct hfs_bnode *);

            
            void hfs_bnode_free(struct hfs_bnode *);

            
            struct hfs_bnode *hfs_bnode_create(struct hfs_btree *, u32);

            
            void hfs_bnode_get(struct hfs_bnode *);

            
            void hfs_bnode_put(struct hfs_bnode *);


            /* brec.c */

            
            u16 hfs_brec_lenoff(struct hfs_bnode *, u16, u16 *);

            
            u16 hfs_brec_keylen(struct hfs_bnode *, u16);

            
            int hfs_brec_insert(struct hfs_find_data *, void *, int);

            
            int hfs_brec_remove(struct hfs_find_data *);


            /* bfind.c */

            
            int hfs_find_init(struct hfs_btree *, struct hfs_find_data *);

            
            void hfs_find_exit(struct hfs_find_data *);

            
            int __hfs_brec_find(struct hfs_bnode *, struct hfs_find_data *);

            
            int hfs_brec_find(struct hfs_find_data *);

            
            int hfs_brec_read(struct hfs_find_data *, void *, int);

            
            int hfs_brec_goto(struct hfs_find_data *, int);


            /* catalog.c */

            
            int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);

            
            int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);

            
            void hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *, u32, struct qstr *);

            
            int hfsplus_find_cat(struct super_block *, u32, struct hfs_find_data *);

            
            int hfsplus_create_cat(u32, struct inode *, struct qstr *, struct inode *);

            
            int hfsplus_delete_cat(u32, struct inode *, struct qstr *);

            
            int hfsplus_rename_cat(u32, struct inode *, struct qstr *,

            
            		       struct inode *, struct qstr *);


            /* extents.c */

            
            int hfsplus_ext_cmp_key(const hfsplus_btree_key *, const hfsplus_btree_key *);

            
            void hfsplus_ext_write_extent(struct inode *);

            
            int hfsplus_get_block(struct inode *, sector_t, struct buffer_head *, int);

            
            int hfsplus_free_fork(struct super_block *, u32, struct hfsplus_fork_raw *, int);

            
            int hfsplus_file_extend(struct inode *);

            
            void hfsplus_file_truncate(struct inode *);


            /* inode.c */

            
            extern const struct address_space_operations hfsplus_aops;

            
            extern const struct address_space_operations hfsplus_btree_aops;


            void hfsplus_inode_read_fork(struct inode *, struct hfsplus_fork_raw *);

            
            void hfsplus_inode_write_fork(struct inode *, struct hfsplus_fork_raw *);

            
            int hfsplus_cat_read_inode(struct inode *, struct hfs_find_data *);

            
            int hfsplus_cat_write_inode(struct inode *);

            
            struct inode *hfsplus_new_inode(struct super_block *, int);

            
            void hfsplus_delete_inode(struct inode *);


            /* ioctl.c */

            
            int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,

            
            		  unsigned long arg);

            
            int hfsplus_setxattr(struct dentry *dentry, const char *name,

            
            		     const void *value, size_t size, int flags);

            
            ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,

            
            			 void *value, size_t size);

            
            ssize_t hfsplus_listxattr(struct dentry *dentry, char *buffer, size_t size);


            /* options.c */

            
            int hfsplus_parse_options(char *, struct hfsplus_sb_info *);

            
            void hfsplus_fill_defaults(struct hfsplus_sb_info *);

            
            int hfsplus_show_options(struct seq_file *, struct vfsmount *);


            /* tables.c */

            
            extern u16 hfsplus_case_fold_table[];

            
            extern u16 hfsplus_decompose_table[];

            
            extern u16 hfsplus_compose_table[];


            /* unicode.c */

            
            int hfsplus_strcasecmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);

            
            int hfsplus_strcmp(const struct hfsplus_unistr *, const struct hfsplus_unistr *);

            
            int hfsplus_uni2asc(struct super_block *, const struct hfsplus_unistr *, char *, int *);

            
            int hfsplus_asc2uni(struct super_block *, struct hfsplus_unistr *, const char *, int);


            /* wrapper.c */

            
            int hfsplus_read_wrapper(struct super_block *);


            int hfs_part_find(struct super_block *, sector_t *, sector_t *);


            /* access macros */

            
            /*

            
            static inline struct hfsplus_sb_info *HFSPLUS_SB(struct super_block *sb)

            
            {

            
            	return sb->s_fs_info;

            
            }

            
            static inline struct hfsplus_inode_info *HFSPLUS_I(struct inode *inode)

            
            {

            
            	return list_entry(inode, struct hfsplus_inode_info, vfs_inode);

            
            }

            
            */

            
            #define HFSPLUS_SB(super)	(*(struct hfsplus_sb_info *)(super)->s_fs_info)

            
            #define HFSPLUS_I(inode)	(*list_entry(inode, struct hfsplus_inode_info, vfs_inode))


            #if 1

            
            #define hfsplus_kmap(p)		({ struct page *__p = (p); kmap(__p); })

            
            #define hfsplus_kunmap(p)	({ struct page *__p = (p); kunmap(__p); __p; })

            
            #else

            
            #define hfsplus_kmap(p)		kmap(p)

            
            #define hfsplus_kunmap(p)	kunmap(p)

            
            #endif


            #define sb_bread512(sb, sec, data) ({			\

            
            	struct buffer_head *__bh;			\

            
            	sector_t __block;				\

            
            	loff_t __start;					\

            
            	int __offset;					\

            
            							\

            
            	__start = (loff_t)(sec) << HFSPLUS_SECTOR_SHIFT;\

            
            	__block = __start >> (sb)->s_blocksize_bits;	\

            
            	__offset = __start & ((sb)->s_blocksize - 1);	\

            
            	__bh = sb_bread((sb), __block);			\

            
            	if (likely(__bh != NULL))			\

            
            		data = (void *)(__bh->b_data + __offset);\

            
            	else						\

            
            		data = NULL;				\

            
            	__bh;						\

            
            })


            /* time macros */

            
            #define __hfsp_mt2ut(t)		(be32_to_cpu(t) - 2082844800U)

            
            #define __hfsp_ut2mt(t)		(cpu_to_be32(t + 2082844800U))


            /* compatibility */

            
            #define hfsp_mt2ut(t)		(struct timespec){ .tv_sec = __hfsp_mt2ut(t) }

            
            #define hfsp_ut2mt(t)		__hfsp_ut2mt((t).tv_sec)

            
            #define hfsp_now2mt()		__hfsp_ut2mt(get_seconds())


            #define kdev_t_to_nr(x)		(x)


            #endif
	/*
	* linux/include/linux/hfsplus_fs.h
	*
	* Copyright (C) 1999
	* Brad Boyer (flar@pants.nu)
	* (C) 2003 Ardis Technologies <roman@ardistech.com>
	*
	*/

	#ifndef _LINUX_HFSPLUS_FS_H
	#define _LINUX_HFSPLUS_FS_H

	#include <linux/fs.h>
	#include <linux/buffer_head.h>
	#include "hfsplus_raw.h"

	#define DBG_BNODE_REFS 0x00000001
	#define DBG_BNODE_MOD 0x00000002
	#define DBG_CAT_MOD 0x00000004
	#define DBG_INODE 0x00000008
	#define DBG_SUPER 0x00000010
	#define DBG_EXTENT 0x00000020
	#define DBG_BITMAP 0x00000040

	//#define DBG_MASK (DBG_EXTENT\|DBG_INODE\|DBG_BNODE_MOD)
	//#define DBG_MASK (DBG_BNODE_MOD\|DBG_CAT_MOD\|DBG_INODE)
	//#define DBG_MASK (DBG_CAT_MOD\|DBG_BNODE_REFS\|DBG_INODE\|DBG_EXTENT)
	#define DBG_MASK (0)

	#define dprint(flg, fmt, args...) \
	if (flg & DBG_MASK) printk(fmt , ## args)

	/* Runtime config options */
	#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */

	#define HFSPLUS_TYPE_DATA 0x00
	#define HFSPLUS_TYPE_RSRC 0xFF

	typedef int (btree_keycmp)(const hfsplus_btree_key , const hfsplus_btree_key *);

	#define NODE_HASH_SIZE 256

	/* An HFS+ BTree held in memory */
	struct hfs_btree {
	struct super_block *sb;
	struct inode *inode;
	btree_keycmp keycmp;

	u32 cnid;
	u32 root;
	u32 leaf_count;
	u32 leaf_head;
	u32 leaf_tail;
	u32 node_count;
	u32 free_nodes;
	u32 attributes;

	unsigned int node_size;
	unsigned int node_size_shift;
	unsigned int max_key_len;
	unsigned int depth;

	//unsigned int map1_size, map_size;
	struct semaphore tree_lock;

	unsigned int pages_per_bnode;
	spinlock_t hash_lock;
	struct hfs_bnode *node_hash[NODE_HASH_SIZE];
	int node_hash_cnt;
	};

	struct page;

	/* An HFS+ BTree node in memory */
	struct hfs_bnode {
	struct hfs_btree *tree;

	u32 prev;
	u32 this;
	u32 next;
	u32 parent;

	u16 num_recs;
	u8 type;
	u8 height;

	struct hfs_bnode *next_hash;
	unsigned long flags;
	wait_queue_head_t lock_wq;
	atomic_t refcnt;
	unsigned int page_offset;
	struct page *page[0];
	};

	#define HFS_BNODE_LOCK 0
	#define HFS_BNODE_ERROR 1
	#define HFS_BNODE_NEW 2
	#define HFS_BNODE_DIRTY 3
	#define HFS_BNODE_DELETED 4

	/*
	* HFS+ superblock info (built from Volume Header on disk)
	*/

	struct hfsplus_vh;
	struct hfs_btree;

	struct hfsplus_sb_info {
	struct buffer_head *s_vhbh;
	struct hfsplus_vh *s_vhdr;
	struct hfs_btree *ext_tree;
	struct hfs_btree *cat_tree;
	struct hfs_btree *attr_tree;
	struct inode *alloc_file;
	struct inode *hidden_dir;
	struct nls_table *nls;

	/* Runtime variables */
	u32 blockoffset;
	u32 sect_count;
	int fs_shift;

	/* Stuff in host order from Vol Header */
	u32 alloc_blksz;
	int alloc_blksz_shift;
	u32 total_blocks;
	u32 free_blocks;
	u32 next_alloc;
	u32 next_cnid;
	u32 file_count;
	u32 folder_count;
	u32 data_clump_blocks, rsrc_clump_blocks;

	/* Config options */
	u32 creator;
	u32 type;

	umode_t umask;
	uid_t uid;
	gid_t gid;

	int part, session;

	unsigned long flags;

	struct hlist_head rsrc_inodes;
	};

	#define HFSPLUS_SB_WRITEBACKUP 0x0001
	#define HFSPLUS_SB_NODECOMPOSE 0x0002
	#define HFSPLUS_SB_FORCE 0x0004
	#define HFSPLUS_SB_HFSX 0x0008


	struct hfsplus_inode_info {
	struct semaphore extents_lock;
	u32 clump_blocks, alloc_blocks;
	sector_t fs_blocks;
	/* Allocation extents from catalog record or volume header */
	hfsplus_extent_rec first_extents;
	u32 first_blocks;
	hfsplus_extent_rec cached_extents;
	u32 cached_start, cached_blocks;
	atomic_t opencnt;

	struct inode *rsrc_inode;
	unsigned long flags;

	__be32 create_date;
	/* Device number in hfsplus_permissions in catalog */
	u32 dev;
	/* BSD system and user file flags */
	u8 rootflags;
	u8 userflags;

	struct list_head open_dir_list;
	loff_t phys_size;
	struct inode vfs_inode;
	};

	#define HFSPLUS_FLG_RSRC 0x0001
	#define HFSPLUS_FLG_EXT_DIRTY 0x0002
	#define HFSPLUS_FLG_EXT_NEW 0x0004

	#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC))
	#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode).flags & HFSPLUS_FLG_RSRC)

	struct hfs_find_data {
	/* filled by caller */
	hfsplus_btree_key *search_key;
	hfsplus_btree_key *key;
	/* filled by find */
	struct hfs_btree *tree;
	struct hfs_bnode *bnode;
	/* filled by findrec */
	int record;
	int keyoffset, keylength;
	int entryoffset, entrylength;
	};

	struct hfsplus_readdir_data {
	struct list_head list;
	struct file *file;
	struct hfsplus_cat_key key;
	};

	#define hfs_btree_open hfsplus_btree_open
	#define hfs_btree_close hfsplus_btree_close
	#define hfs_btree_write hfsplus_btree_write
	#define hfs_bmap_alloc hfsplus_bmap_alloc
	#define hfs_bmap_free hfsplus_bmap_free
	#define hfs_bnode_read hfsplus_bnode_read
	#define hfs_bnode_read_u16 hfsplus_bnode_read_u16
	#define hfs_bnode_read_u8 hfsplus_bnode_read_u8
	#define hfs_bnode_read_key hfsplus_bnode_read_key
	#define hfs_bnode_write hfsplus_bnode_write
	#define hfs_bnode_write_u16 hfsplus_bnode_write_u16
	#define hfs_bnode_clear hfsplus_bnode_clear
	#define hfs_bnode_copy hfsplus_bnode_copy
	#define hfs_bnode_move hfsplus_bnode_move
	#define hfs_bnode_dump hfsplus_bnode_dump
	#define hfs_bnode_unlink hfsplus_bnode_unlink
	#define hfs_bnode_findhash hfsplus_bnode_findhash
	#define hfs_bnode_find hfsplus_bnode_find
	#define hfs_bnode_unhash hfsplus_bnode_unhash
	#define hfs_bnode_free hfsplus_bnode_free
	#define hfs_bnode_create hfsplus_bnode_create
	#define hfs_bnode_get hfsplus_bnode_get
	#define hfs_bnode_put hfsplus_bnode_put
	#define hfs_brec_lenoff hfsplus_brec_lenoff
	#define hfs_brec_keylen hfsplus_brec_keylen
	#define hfs_brec_insert hfsplus_brec_insert
	#define hfs_brec_remove hfsplus_brec_remove
	#define hfs_find_init hfsplus_find_init
	#define hfs_find_exit hfsplus_find_exit
	#define __hfs_brec_find __hplusfs_brec_find
	#define hfs_brec_find hfsplus_brec_find
	#define hfs_brec_read hfsplus_brec_read
	#define hfs_brec_goto hfsplus_brec_goto
	#define hfs_part_find hfsplus_part_find

	/*
	* definitions for ext2 flag ioctls (linux really needs a generic
	* interface for this).
	*/

	/* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
	* chattr/lsattr */
	#define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS
	#define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS


	/*
	* Functions in any *.c used in other files
	*/

	/* bitmap.c */
	int hfsplus_block_allocate(struct super_block , u32, u32, u32 );
	int hfsplus_block_free(struct super_block *, u32, u32);

	/* btree.c */
	struct hfs_btree hfs_btree_open(struct super_block , u32);
	void hfs_btree_close(struct hfs_btree *);
	void hfs_btree_write(struct hfs_btree *);
	struct hfs_bnode hfs_bmap_alloc(struct hfs_btree );
	void hfs_bmap_free(struct hfs_bnode *);

	/* bnode.c */
	void hfs_bnode_read(struct hfs_bnode , void , int, int);
	u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
	u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
	void hfs_bnode_read_key(struct hfs_bnode , void , int);
	void hfs_bnode_write(struct hfs_bnode , void , int, int);
	void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
	void hfs_bnode_clear(struct hfs_bnode *, int, int);
	void hfs_bnode_copy(struct hfs_bnode *, int,
	struct hfs_bnode *, int, int);
	void hfs_bnode_move(struct hfs_bnode *, int, int, int);
	void hfs_bnode_dump(struct hfs_bnode *);
	void hfs_bnode_unlink(struct hfs_bnode *);
	struct hfs_bnode hfs_bnode_findhash(struct hfs_btree , u32);
	struct hfs_bnode hfs_bnode_find(struct hfs_btree , u32);
	void hfs_bnode_unhash(struct hfs_bnode *);
	void hfs_bnode_free(struct hfs_bnode *);
	struct hfs_bnode hfs_bnode_create(struct hfs_btree , u32);
	void hfs_bnode_get(struct hfs_bnode *);
	void hfs_bnode_put(struct hfs_bnode *);

	/* brec.c */
	u16 hfs_brec_lenoff(struct hfs_bnode , u16, u16 );
	u16 hfs_brec_keylen(struct hfs_bnode *, u16);
	int hfs_brec_insert(struct hfs_find_data , void , int);
	int hfs_brec_remove(struct hfs_find_data *);

	/* bfind.c */
	int hfs_find_init(struct hfs_btree , struct hfs_find_data );
	void hfs_find_exit(struct hfs_find_data *);
	int __hfs_brec_find(struct hfs_bnode , struct hfs_find_data );
	int hfs_brec_find(struct hfs_find_data *);
	int hfs_brec_read(struct hfs_find_data , void , int);
	int hfs_brec_goto(struct hfs_find_data *, int);

	/* catalog.c */
	int hfsplus_cat_case_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
	int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
	void hfsplus_cat_build_key(struct super_block sb, hfsplus_btree_key , u32, struct qstr *);
	int hfsplus_find_cat(struct super_block , u32, struct hfs_find_data );
	int hfsplus_create_cat(u32, struct inode , struct qstr , struct inode *);
	int hfsplus_delete_cat(u32, struct inode , struct qstr );
	int hfsplus_rename_cat(u32, struct inode , struct qstr ,
	struct inode , struct qstr );

	/* extents.c */
	int hfsplus_ext_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
	void hfsplus_ext_write_extent(struct inode *);
	int hfsplus_get_block(struct inode , sector_t, struct buffer_head , int);
	int hfsplus_free_fork(struct super_block , u32, struct hfsplus_fork_raw , int);
	int hfsplus_file_extend(struct inode *);
	void hfsplus_file_truncate(struct inode *);

	/* inode.c */
	extern const struct address_space_operations hfsplus_aops;
	extern const struct address_space_operations hfsplus_btree_aops;

	void hfsplus_inode_read_fork(struct inode , struct hfsplus_fork_raw );
	void hfsplus_inode_write_fork(struct inode , struct hfsplus_fork_raw );
	int hfsplus_cat_read_inode(struct inode , struct hfs_find_data );
	int hfsplus_cat_write_inode(struct inode *);
	struct inode hfsplus_new_inode(struct super_block , int);
	void hfsplus_delete_inode(struct inode *);

	/* ioctl.c */
	int hfsplus_ioctl(struct inode inode, struct file filp, unsigned int cmd,
	unsigned long arg);
	int hfsplus_setxattr(struct dentry dentry, const char name,
	const void *value, size_t size, int flags);
	ssize_t hfsplus_getxattr(struct dentry dentry, const char name,
	void *value, size_t size);
	ssize_t hfsplus_listxattr(struct dentry dentry, char buffer, size_t size);

	/* options.c */
	int hfsplus_parse_options(char , struct hfsplus_sb_info );
	void hfsplus_fill_defaults(struct hfsplus_sb_info *);
	int hfsplus_show_options(struct seq_file , struct vfsmount );

	/* tables.c */
	extern u16 hfsplus_case_fold_table[];
	extern u16 hfsplus_decompose_table[];
	extern u16 hfsplus_compose_table[];

	/* unicode.c */
	int hfsplus_strcasecmp(const struct hfsplus_unistr , const struct hfsplus_unistr );
	int hfsplus_strcmp(const struct hfsplus_unistr , const struct hfsplus_unistr );
	int hfsplus_uni2asc(struct super_block , const struct hfsplus_unistr , char , int );
	int hfsplus_asc2uni(struct super_block , struct hfsplus_unistr , const char *, int);

	/* wrapper.c */
	int hfsplus_read_wrapper(struct super_block *);

	int hfs_part_find(struct super_block , sector_t , sector_t *);

	/* access macros */
	/*
	static inline struct hfsplus_sb_info HFSPLUS_SB(struct super_block sb)
	{
	return sb->s_fs_info;
	}
	static inline struct hfsplus_inode_info HFSPLUS_I(struct inode inode)
	{
	return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
	}
	*/
	#define HFSPLUS_SB(super) ((struct hfsplus_sb_info )(super)->s_fs_info)
	#define HFSPLUS_I(inode) (*list_entry(inode, struct hfsplus_inode_info, vfs_inode))

	#if 1
	#define hfsplus_kmap(p) ({ struct page *__p = (p); kmap(__p); })
	#define hfsplus_kunmap(p) ({ struct page *__p = (p); kunmap(__p); __p; })
	#else
	#define hfsplus_kmap(p) kmap(p)
	#define hfsplus_kunmap(p) kunmap(p)
	#endif

	#define sb_bread512(sb, sec, data) ({ \
	struct buffer_head *__bh; \
	sector_t __block; \
	loff_t __start; \
	int __offset; \
	\
	__start = (loff_t)(sec) << HFSPLUS_SECTOR_SHIFT;\
	__block = __start >> (sb)->s_blocksize_bits; \
	__offset = __start & ((sb)->s_blocksize - 1); \
	__bh = sb_bread((sb), __block); \
	if (likely(__bh != NULL)) \
	data = (void *)(__bh->b_data + __offset);\
	else \
	data = NULL; \
	__bh; \
	})

	/* time macros */
	#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
	#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))

	/* compatibility */
	#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
	#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
	#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())

	#define kdev_t_to_nr(x) (x)

	#endif