[net-next-2.6.git] / fs / hfsplus / hfsplus_fs.h

/*
 *  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/mutex.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;

	/* synchronize block allocations */
	struct mutex alloc_mutex;

	/* 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_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;
};

#define HFSPLUS_SB_WRITEBACKUP	0x0001
#define HFSPLUS_SB_NODECOMPOSE	0x0002
#define HFSPLUS_SB_FORCE	0x0004
#define HFSPLUS_SB_HFSX		0x0008
#define HFSPLUS_SB_CASEFOLD	0x0010


struct hfsplus_inode_info {
	struct mutex 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 *);

/* dir.c */
extern const struct inode_operations hfsplus_dir_inode_operations;
extern const struct file_operations hfsplus_dir_operations;

/* 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;
extern const struct dentry_operations hfsplus_dentry_operations;

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 */
long hfsplus_ioctl(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 *);

/* super.c */
struct inode *hfsplus_iget(struct super_block *, unsigned long);
int hfsplus_sync_fs(struct super_block *sb, int wait);

/* 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);
int hfsplus_hash_dentry(struct dentry *dentry, struct qstr *str);
int hfsplus_compare_dentry(struct dentry *dentry, struct qstr *s1, struct qstr *s2);

/* 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);
}

#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
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/linux/hfsplus_fs.h
	3	*
	4	* Copyright (C) 1999
	5	* Brad Boyer (flar@pants.nu)
	6	* (C) 2003 Ardis Technologies <roman@ardistech.com>
	7	*
	8	*/
	9
	10	#ifndef _LINUX_HFSPLUS_FS_H
	11	#define _LINUX_HFSPLUS_FS_H
	12
	13	#include <linux/fs.h>
895c23f8	14	#include <linux/mutex.h>
1da177e4 LT	15	#include <linux/buffer_head.h>
	16	#include "hfsplus_raw.h"
	17
	18	#define DBG_BNODE_REFS 0x00000001
	19	#define DBG_BNODE_MOD 0x00000002
	20	#define DBG_CAT_MOD 0x00000004
	21	#define DBG_INODE 0x00000008
	22	#define DBG_SUPER 0x00000010
	23	#define DBG_EXTENT 0x00000020
	24	#define DBG_BITMAP 0x00000040
	25
	26	//#define DBG_MASK (DBG_EXTENT\|DBG_INODE\|DBG_BNODE_MOD)
	27	//#define DBG_MASK (DBG_BNODE_MOD\|DBG_CAT_MOD\|DBG_INODE)
	28	//#define DBG_MASK (DBG_CAT_MOD\|DBG_BNODE_REFS\|DBG_INODE\|DBG_EXTENT)
	29	#define DBG_MASK (0)
	30
	31	#define dprint(flg, fmt, args...) \
	32	if (flg & DBG_MASK) printk(fmt , ## args)
	33
	34	/* Runtime config options */
	35	#define HFSPLUS_DEF_CR_TYPE 0x3F3F3F3F /* '????' */
	36
	37	#define HFSPLUS_TYPE_DATA 0x00
	38	#define HFSPLUS_TYPE_RSRC 0xFF
	39
2179d372	40	typedef int (btree_keycmp)(const hfsplus_btree_key , const hfsplus_btree_key *);
1da177e4 LT	41
	42	#define NODE_HASH_SIZE 256
	43
	44	/* An HFS+ BTree held in memory */
	45	struct hfs_btree {
	46	struct super_block *sb;
	47	struct inode *inode;
	48	btree_keycmp keycmp;
	49
	50	u32 cnid;
	51	u32 root;
	52	u32 leaf_count;
	53	u32 leaf_head;
	54	u32 leaf_tail;
	55	u32 node_count;
	56	u32 free_nodes;
	57	u32 attributes;
	58
	59	unsigned int node_size;
	60	unsigned int node_size_shift;
	61	unsigned int max_key_len;
	62	unsigned int depth;
	63
	64	//unsigned int map1_size, map_size;
	65	struct semaphore tree_lock;
	66
	67	unsigned int pages_per_bnode;
	68	spinlock_t hash_lock;
	69	struct hfs_bnode *node_hash[NODE_HASH_SIZE];
	70	int node_hash_cnt;
	71	};
	72
	73	struct page;
	74
	75	/* An HFS+ BTree node in memory */
	76	struct hfs_bnode {
	77	struct hfs_btree *tree;
	78
	79	u32 prev;
	80	u32 this;
	81	u32 next;
	82	u32 parent;
	83
	84	u16 num_recs;
	85	u8 type;
	86	u8 height;
	87
	88	struct hfs_bnode *next_hash;
	89	unsigned long flags;
	90	wait_queue_head_t lock_wq;
	91	atomic_t refcnt;
	92	unsigned int page_offset;
	93	struct page *page[0];
	94	};
	95
	96	#define HFS_BNODE_LOCK 0
	97	#define HFS_BNODE_ERROR 1
	98	#define HFS_BNODE_NEW 2
	99	#define HFS_BNODE_DIRTY 3
	100	#define HFS_BNODE_DELETED 4
	101
	102	/*
	103	* HFS+ superblock info (built from Volume Header on disk)
	104	*/
105
106	struct hfsplus_vh;
107	struct hfs_btree;
108
109	struct hfsplus_sb_info {
110	struct buffer_head *s_vhbh;
111	struct hfsplus_vh *s_vhdr;
112	struct hfs_btree *ext_tree;
113	struct hfs_btree *cat_tree;
114	struct hfs_btree *attr_tree;
115	struct inode *alloc_file;
116	struct inode *hidden_dir;
117	struct nls_table *nls;
118
40bf48af CH	119	/* synchronize block allocations */
	120	struct mutex alloc_mutex;
	121
1da177e4 LT	122	/* Runtime variables */
	123	u32 blockoffset;
	124	u32 sect_count;
	125	int fs_shift;
	126
	127	/* Stuff in host order from Vol Header */
	128	u32 alloc_blksz;
	129	int alloc_blksz_shift;
	130	u32 total_blocks;
	131	u32 free_blocks;
1da177e4 LT	132	u32 next_cnid;
	133	u32 file_count;
	134	u32 folder_count;
	135	u32 data_clump_blocks, rsrc_clump_blocks;
	136
	137	/* Config options */
	138	u32 creator;
	139	u32 type;
	140
	141	umode_t umask;
	142	uid_t uid;
	143	gid_t gid;
	144
	145	int part, session;
	146
	147	unsigned long flags;
1da177e4 LT	148	};
	149
	150	#define HFSPLUS_SB_WRITEBACKUP 0x0001
	151	#define HFSPLUS_SB_NODECOMPOSE 0x0002
b0b623c3	152	#define HFSPLUS_SB_FORCE 0x0004
2179d372	153	#define HFSPLUS_SB_HFSX 0x0008
d45bce8f	154	#define HFSPLUS_SB_CASEFOLD 0x0010
1da177e4 LT	155
	156
	157	struct hfsplus_inode_info {
895c23f8	158	struct mutex extents_lock;
1da177e4 LT	159	u32 clump_blocks, alloc_blocks;
	160	sector_t fs_blocks;
	161	/* Allocation extents from catalog record or volume header */
	162	hfsplus_extent_rec first_extents;
	163	u32 first_blocks;
	164	hfsplus_extent_rec cached_extents;
	165	u32 cached_start, cached_blocks;
	166	atomic_t opencnt;
	167
	168	struct inode *rsrc_inode;
	169	unsigned long flags;
	170
9a4cad95	171	__be32 create_date;
1da177e4 LT	172	/* Device number in hfsplus_permissions in catalog */
	173	u32 dev;
	174	/* BSD system and user file flags */
	175	u8 rootflags;
	176	u8 userflags;
	177
	178	struct list_head open_dir_list;
	179	loff_t phys_size;
	180	struct inode vfs_inode;
	181	};
	182
	183	#define HFSPLUS_FLG_RSRC 0x0001
	184	#define HFSPLUS_FLG_EXT_DIRTY 0x0002
	185	#define HFSPLUS_FLG_EXT_NEW 0x0004
	186
6af502de CH	187	#define HFSPLUS_IS_DATA(inode) (!(HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC))
6af502de CH	188	#define HFSPLUS_IS_RSRC(inode) (HFSPLUS_I(inode)->flags & HFSPLUS_FLG_RSRC)
1da177e4 LT	189
	190	struct hfs_find_data {
	191	/* filled by caller */
	192	hfsplus_btree_key *search_key;
	193	hfsplus_btree_key *key;
	194	/* filled by find */
	195	struct hfs_btree *tree;
	196	struct hfs_bnode *bnode;
	197	/* filled by findrec */
	198	int record;
	199	int keyoffset, keylength;
	200	int entryoffset, entrylength;
	201	};
	202
	203	struct hfsplus_readdir_data {
	204	struct list_head list;
	205	struct file *file;
	206	struct hfsplus_cat_key key;
	207	};
	208
	209	#define hfs_btree_open hfsplus_btree_open
	210	#define hfs_btree_close hfsplus_btree_close
	211	#define hfs_btree_write hfsplus_btree_write
	212	#define hfs_bmap_alloc hfsplus_bmap_alloc
	213	#define hfs_bmap_free hfsplus_bmap_free
	214	#define hfs_bnode_read hfsplus_bnode_read
	215	#define hfs_bnode_read_u16 hfsplus_bnode_read_u16
	216	#define hfs_bnode_read_u8 hfsplus_bnode_read_u8
	217	#define hfs_bnode_read_key hfsplus_bnode_read_key
	218	#define hfs_bnode_write hfsplus_bnode_write
	219	#define hfs_bnode_write_u16 hfsplus_bnode_write_u16
	220	#define hfs_bnode_clear hfsplus_bnode_clear
	221	#define hfs_bnode_copy hfsplus_bnode_copy
	222	#define hfs_bnode_move hfsplus_bnode_move
	223	#define hfs_bnode_dump hfsplus_bnode_dump
	224	#define hfs_bnode_unlink hfsplus_bnode_unlink
	225	#define hfs_bnode_findhash hfsplus_bnode_findhash
	226	#define hfs_bnode_find hfsplus_bnode_find
	227	#define hfs_bnode_unhash hfsplus_bnode_unhash
	228	#define hfs_bnode_free hfsplus_bnode_free
	229	#define hfs_bnode_create hfsplus_bnode_create
	230	#define hfs_bnode_get hfsplus_bnode_get
	231	#define hfs_bnode_put hfsplus_bnode_put
	232	#define hfs_brec_lenoff hfsplus_brec_lenoff
	233	#define hfs_brec_keylen hfsplus_brec_keylen
	234	#define hfs_brec_insert hfsplus_brec_insert
	235	#define hfs_brec_remove hfsplus_brec_remove
	236	#define hfs_find_init hfsplus_find_init
	237	#define hfs_find_exit hfsplus_find_exit
	238	#define __hfs_brec_find __hplusfs_brec_find
	239	#define hfs_brec_find hfsplus_brec_find
	240	#define hfs_brec_read hfsplus_brec_read
	241	#define hfs_brec_goto hfsplus_brec_goto
	242	#define hfs_part_find hfsplus_part_find
	243
	244	/*
	245	* definitions for ext2 flag ioctls (linux really needs a generic
	246	* interface for this).
	247	*/
	248
	249	/* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
	250	* chattr/lsattr */
36695673 DH	251	#define HFSPLUS_IOC_EXT2_GETFLAGS FS_IOC_GETFLAGS
36695673 DH	252	#define HFSPLUS_IOC_EXT2_SETFLAGS FS_IOC_SETFLAGS
1da177e4 LT	253
	254
	255	/*
	256	* Functions in any *.c used in other files
	257	*/
	258
	259	/* bitmap.c */
	260	int hfsplus_block_allocate(struct super_block , u32, u32, u32 );
	261	int hfsplus_block_free(struct super_block *, u32, u32);
	262
	263	/* btree.c */
	264	struct hfs_btree hfs_btree_open(struct super_block , u32);
	265	void hfs_btree_close(struct hfs_btree *);
	266	void hfs_btree_write(struct hfs_btree *);
	267	struct hfs_bnode hfs_bmap_alloc(struct hfs_btree );
	268	void hfs_bmap_free(struct hfs_bnode *);
	269
	270	/* bnode.c */
	271	void hfs_bnode_read(struct hfs_bnode , void , int, int);
	272	u16 hfs_bnode_read_u16(struct hfs_bnode *, int);
	273	u8 hfs_bnode_read_u8(struct hfs_bnode *, int);
	274	void hfs_bnode_read_key(struct hfs_bnode , void , int);
	275	void hfs_bnode_write(struct hfs_bnode , void , int, int);
	276	void hfs_bnode_write_u16(struct hfs_bnode *, int, u16);
	277	void hfs_bnode_clear(struct hfs_bnode *, int, int);
	278	void hfs_bnode_copy(struct hfs_bnode *, int,
	279	struct hfs_bnode *, int, int);
	280	void hfs_bnode_move(struct hfs_bnode *, int, int, int);
	281	void hfs_bnode_dump(struct hfs_bnode *);
	282	void hfs_bnode_unlink(struct hfs_bnode *);
	283	struct hfs_bnode hfs_bnode_findhash(struct hfs_btree , u32);
	284	struct hfs_bnode hfs_bnode_find(struct hfs_btree , u32);
	285	void hfs_bnode_unhash(struct hfs_bnode *);
	286	void hfs_bnode_free(struct hfs_bnode *);
	287	struct hfs_bnode hfs_bnode_create(struct hfs_btree , u32);
	288	void hfs_bnode_get(struct hfs_bnode *);
	289	void hfs_bnode_put(struct hfs_bnode *);
	290
	291	/* brec.c */
	292	u16 hfs_brec_lenoff(struct hfs_bnode , u16, u16 );
	293	u16 hfs_brec_keylen(struct hfs_bnode *, u16);
	294	int hfs_brec_insert(struct hfs_find_data , void , int);
	295	int hfs_brec_remove(struct hfs_find_data *);
	296
	297	/* bfind.c */
	298	int hfs_find_init(struct hfs_btree , struct hfs_find_data );
	299	void hfs_find_exit(struct hfs_find_data *);
	300	int __hfs_brec_find(struct hfs_bnode , struct hfs_find_data );
	301	int hfs_brec_find(struct hfs_find_data *);
	302	int hfs_brec_read(struct hfs_find_data , void , int);
	303	int hfs_brec_goto(struct hfs_find_data *, int);
	304
	305	/* catalog.c */
2179d372 DE	306	int hfsplus_cat_case_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
2179d372 DE	307	int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
1da177e4 LT	308	void hfsplus_cat_build_key(struct super_block sb, hfsplus_btree_key , u32, struct qstr *);
	309	int hfsplus_find_cat(struct super_block , u32, struct hfs_find_data );
	310	int hfsplus_create_cat(u32, struct inode , struct qstr , struct inode *);
	311	int hfsplus_delete_cat(u32, struct inode , struct qstr );
	312	int hfsplus_rename_cat(u32, struct inode , struct qstr ,
	313	struct inode , struct qstr );
	314
4b0a8da7 AB	315	/* dir.c */
	316	extern const struct inode_operations hfsplus_dir_inode_operations;
	317	extern const struct file_operations hfsplus_dir_operations;
	318
1da177e4	319	/* extents.c */
2179d372	320	int hfsplus_ext_cmp_key(const hfsplus_btree_key , const hfsplus_btree_key );
1da177e4 LT	321	void hfsplus_ext_write_extent(struct inode *);
	322	int hfsplus_get_block(struct inode , sector_t, struct buffer_head , int);
	323	int hfsplus_free_fork(struct super_block , u32, struct hfsplus_fork_raw , int);
	324	int hfsplus_file_extend(struct inode *);
	325	void hfsplus_file_truncate(struct inode *);
	326
	327	/* inode.c */
f5e54d6e CH	328	extern const struct address_space_operations hfsplus_aops;
f5e54d6e CH	329	extern const struct address_space_operations hfsplus_btree_aops;
e16404ed	330	extern const struct dentry_operations hfsplus_dentry_operations;
1da177e4 LT	331
	332	void hfsplus_inode_read_fork(struct inode , struct hfsplus_fork_raw );
	333	void hfsplus_inode_write_fork(struct inode , struct hfsplus_fork_raw );
	334	int hfsplus_cat_read_inode(struct inode , struct hfs_find_data );
	335	int hfsplus_cat_write_inode(struct inode *);
	336	struct inode hfsplus_new_inode(struct super_block , int);
	337	void hfsplus_delete_inode(struct inode *);
	338
	339	/* ioctl.c */
7cc4bcc6	340	long hfsplus_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
1da177e4 LT	341	int hfsplus_setxattr(struct dentry dentry, const char name,
	342	const void *value, size_t size, int flags);
	343	ssize_t hfsplus_getxattr(struct dentry dentry, const char name,
	344	void *value, size_t size);
	345	ssize_t hfsplus_listxattr(struct dentry dentry, char buffer, size_t size);
	346
	347	/* options.c */
717dd80e RZ	348	int hfsplus_parse_options(char , struct hfsplus_sb_info );
	349	void hfsplus_fill_defaults(struct hfsplus_sb_info *);
	350	int hfsplus_show_options(struct seq_file , struct vfsmount );
1da177e4	351
63525391 DH	352	/* super.c */
63525391 DH	353	struct inode hfsplus_iget(struct super_block , unsigned long);
b5fc510c	354	int hfsplus_sync_fs(struct super_block *sb, int wait);
63525391	355
1da177e4 LT	356	/* tables.c */
	357	extern u16 hfsplus_case_fold_table[];
	358	extern u16 hfsplus_decompose_table[];
	359	extern u16 hfsplus_compose_table[];
	360
	361	/* unicode.c */
2179d372 DE	362	int hfsplus_strcasecmp(const struct hfsplus_unistr , const struct hfsplus_unistr );
2179d372 DE	363	int hfsplus_strcmp(const struct hfsplus_unistr , const struct hfsplus_unistr );
1da177e4 LT	364	int hfsplus_uni2asc(struct super_block , const struct hfsplus_unistr , char , int );
1da177e4 LT	365	int hfsplus_asc2uni(struct super_block , struct hfsplus_unistr , const char *, int);
d45bce8f DG	366	int hfsplus_hash_dentry(struct dentry dentry, struct qstr str);
d45bce8f DG	367	int hfsplus_compare_dentry(struct dentry dentry, struct qstr s1, struct qstr *s2);
1da177e4 LT	368
	369	/* wrapper.c */
	370	int hfsplus_read_wrapper(struct super_block *);
	371
	372	int hfs_part_find(struct super_block , sector_t , sector_t *);
	373
	374	/* access macros */
1da177e4 LT	375	static inline struct hfsplus_sb_info HFSPLUS_SB(struct super_block sb)
	376	{
	377	return sb->s_fs_info;
	378	}
6af502de	379
1da177e4 LT	380	static inline struct hfsplus_inode_info HFSPLUS_I(struct inode inode)
	381	{
	382	return list_entry(inode, struct hfsplus_inode_info, vfs_inode);
	383	}
1da177e4 LT	384
	385	#if 1
	386	#define hfsplus_kmap(p) ({ struct page *__p = (p); kmap(__p); })
	387	#define hfsplus_kunmap(p) ({ struct page *__p = (p); kunmap(__p); __p; })
	388	#else
	389	#define hfsplus_kmap(p) kmap(p)
	390	#define hfsplus_kunmap(p) kunmap(p)
	391	#endif
	392
	393	#define sb_bread512(sb, sec, data) ({ \
	394	struct buffer_head *__bh; \
	395	sector_t __block; \
	396	loff_t __start; \
	397	int __offset; \
	398	\
	399	__start = (loff_t)(sec) << HFSPLUS_SECTOR_SHIFT;\
	400	__block = __start >> (sb)->s_blocksize_bits; \
	401	__offset = __start & ((sb)->s_blocksize - 1); \
	402	__bh = sb_bread((sb), __block); \
	403	if (likely(__bh != NULL)) \
	404	data = (void *)(__bh->b_data + __offset);\
	405	else \
	406	data = NULL; \
	407	__bh; \
	408	})
	409
	410	/* time macros */
	411	#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
	412	#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))
	413
	414	/* compatibility */
	415	#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
	416	#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
	417	#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
	418
	419	#define kdev_t_to_nr(x) (x)
	420
	421	#endif