[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / ufs / ufs.h

#ifndef _UFS_UFS_H
#define _UFS_UFS_H 1

#define UFS_MAX_GROUP_LOADED 8
#define UFS_CGNO_EMPTY ((unsigned)-1)

struct ufs_sb_private_info;
struct ufs_cg_private_info;
struct ufs_csum;

struct ufs_sb_info {
	struct ufs_sb_private_info * s_uspi;
	struct ufs_csum	* s_csp;
	unsigned s_bytesex;
	unsigned s_flags;
	struct buffer_head ** s_ucg;
	struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
	unsigned s_cgno[UFS_MAX_GROUP_LOADED];
	unsigned short s_cg_loaded;
	unsigned s_mount_opt;
	struct mutex mutex;
	struct task_struct *mutex_owner;
	struct super_block *sb;
	int work_queued; /* non-zero if the delayed work is queued */
	struct delayed_work sync_work; /* FS sync delayed work */
	spinlock_t work_lock; /* protects sync_work and work_queued */
	struct mutex s_lock;
};

struct ufs_inode_info {
	union {
		__fs32	i_data[15];
		__u8	i_symlink[2 * 4 * 15];
		__fs64	u2_i_data[15];
	} i_u1;
	__u32	i_flags;
	__u32	i_shadow;
	__u32	i_unused1;
	__u32	i_unused2;
	__u32	i_oeftflag;
	__u16	i_osync;
	__u64	i_lastfrag;
	__u32   i_dir_start_lookup;
	struct inode vfs_inode;
};

/* mount options */
#define UFS_MOUNT_ONERROR		0x0000000F
#define UFS_MOUNT_ONERROR_PANIC		0x00000001
#define UFS_MOUNT_ONERROR_LOCK		0x00000002
#define UFS_MOUNT_ONERROR_UMOUNT	0x00000004
#define UFS_MOUNT_ONERROR_REPAIR	0x00000008

#define UFS_MOUNT_UFSTYPE		0x0000FFF0
#define UFS_MOUNT_UFSTYPE_OLD		0x00000010
#define UFS_MOUNT_UFSTYPE_44BSD		0x00000020
#define UFS_MOUNT_UFSTYPE_SUN		0x00000040
#define UFS_MOUNT_UFSTYPE_NEXTSTEP	0x00000080
#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD	0x00000100
#define UFS_MOUNT_UFSTYPE_OPENSTEP	0x00000200
#define UFS_MOUNT_UFSTYPE_SUNx86	0x00000400
#define UFS_MOUNT_UFSTYPE_HP	        0x00000800
#define UFS_MOUNT_UFSTYPE_UFS2		0x00001000
#define UFS_MOUNT_UFSTYPE_SUNOS		0x00002000

#define ufs_clear_opt(o,opt)	o &= ~UFS_MOUNT_##opt
#define ufs_set_opt(o,opt)	o |= UFS_MOUNT_##opt
#define ufs_test_opt(o,opt)	((o) & UFS_MOUNT_##opt)

/*
 * Debug code
 */
#ifdef CONFIG_UFS_DEBUG
#	define UFSD(f, a...)	{					\
		printk ("UFSD (%s, %d): %s:",				\
			__FILE__, __LINE__, __func__);		\
		printk (f, ## a);					\
	}
#else
#	define UFSD(f, a...)	/**/
#endif

/* balloc.c */
extern void ufs_free_fragments (struct inode *, u64, unsigned);
extern void ufs_free_blocks (struct inode *, u64, unsigned);
extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
			     unsigned, int *, struct page *);

/* cylinder.c */
extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
extern void ufs_put_cylinder (struct super_block *, unsigned);

/* dir.c */
extern const struct inode_operations ufs_dir_inode_operations;
extern int ufs_add_link (struct dentry *, struct inode *);
extern ino_t ufs_inode_by_name(struct inode *, const struct qstr *);
extern int ufs_make_empty(struct inode *, struct inode *);
extern struct ufs_dir_entry *ufs_find_entry(struct inode *, const struct qstr *, struct page **);
extern int ufs_delete_entry(struct inode *, struct ufs_dir_entry *, struct page *);
extern int ufs_empty_dir (struct inode *);
extern struct ufs_dir_entry *ufs_dotdot(struct inode *, struct page **);
extern void ufs_set_link(struct inode *dir, struct ufs_dir_entry *de,
			 struct page *page, struct inode *inode);

/* file.c */
extern const struct inode_operations ufs_file_inode_operations;
extern const struct file_operations ufs_file_operations;
extern const struct address_space_operations ufs_aops;

/* ialloc.c */
extern void ufs_free_inode (struct inode *inode);
extern struct inode * ufs_new_inode (struct inode *, umode_t);

/* inode.c */
extern struct inode *ufs_iget(struct super_block *, unsigned long);
extern int ufs_write_inode (struct inode *, struct writeback_control *);
extern int ufs_sync_inode (struct inode *);
extern void ufs_evict_inode (struct inode *);
extern int ufs_getfrag_block (struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create);

/* namei.c */
extern const struct file_operations ufs_dir_operations;

/* super.c */
extern __printf(3, 4)
void ufs_warning(struct super_block *, const char *, const char *, ...);
extern __printf(3, 4)
void ufs_error(struct super_block *, const char *, const char *, ...);
extern __printf(3, 4)
void ufs_panic(struct super_block *, const char *, const char *, ...);
void ufs_mark_sb_dirty(struct super_block *sb);

/* symlink.c */
extern const struct inode_operations ufs_fast_symlink_inode_operations;
extern const struct inode_operations ufs_symlink_inode_operations;

/* truncate.c */
extern int ufs_truncate (struct inode *, loff_t);
extern int ufs_setattr(struct dentry *dentry, struct iattr *attr);

static inline struct ufs_sb_info *UFS_SB(struct super_block *sb)
{
	return sb->s_fs_info;
}

static inline struct ufs_inode_info *UFS_I(struct inode *inode)
{
	return container_of(inode, struct ufs_inode_info, vfs_inode);
}

/*
 * Give cylinder group number for a file system block.
 * Give cylinder group block number for a file system block.
 */
/* #define	ufs_dtog(d)	((d) / uspi->s_fpg) */
static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
{
	do_div(b, uspi->s_fpg);
	return b;
}
/* #define	ufs_dtogd(d)	((d) % uspi->s_fpg) */
static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
{
	return do_div(b, uspi->s_fpg);
}

extern void lock_ufs(struct super_block *sb);
extern void unlock_ufs(struct super_block *sb);

#endif /* _UFS_UFS_H */
Commit	Line	Data
bcd6d4ec CH	1	#ifndef _UFS_UFS_H
	2	#define _UFS_UFS_H 1
	3
	4	#define UFS_MAX_GROUP_LOADED 8
	5	#define UFS_CGNO_EMPTY ((unsigned)-1)
	6
	7	struct ufs_sb_private_info;
	8	struct ufs_cg_private_info;
	9	struct ufs_csum;
	10
	11	struct ufs_sb_info {
	12	struct ufs_sb_private_info * s_uspi;
	13	struct ufs_csum * s_csp;
	14	unsigned s_bytesex;
	15	unsigned s_flags;
	16	struct buffer_head ** s_ucg;
	17	struct ufs_cg_private_info * s_ucpi[UFS_MAX_GROUP_LOADED];
	18	unsigned s_cgno[UFS_MAX_GROUP_LOADED];
	19	unsigned short s_cg_loaded;
	20	unsigned s_mount_opt;
788257d6 AB	21	struct mutex mutex;
788257d6 AB	22	struct task_struct *mutex_owner;
9e9ad5f4 AB	23	struct super_block *sb;
	24	int work_queued; /* non-zero if the delayed work is queued */
	25	struct delayed_work sync_work; /* FS sync delayed work */
	26	spinlock_t work_lock; /* protects sync_work and work_queued */
b6963327	27	struct mutex s_lock;
bcd6d4ec CH	28	};
	29
	30	struct ufs_inode_info {
	31	union {
	32	__fs32 i_data[15];
f33219b7	33	__u8 i_symlink[2 * 4 * 15];
bcd6d4ec CH	34	__fs64 u2_i_data[15];
	35	} i_u1;
	36	__u32 i_flags;
	37	__u32 i_shadow;
	38	__u32 i_unused1;
	39	__u32 i_unused2;
	40	__u32 i_oeftflag;
	41	__u16 i_osync;
	42	__u64 i_lastfrag;
	43	__u32 i_dir_start_lookup;
	44	struct inode vfs_inode;
	45	};
	46
	47	/* mount options */
	48	#define UFS_MOUNT_ONERROR 0x0000000F
	49	#define UFS_MOUNT_ONERROR_PANIC 0x00000001
	50	#define UFS_MOUNT_ONERROR_LOCK 0x00000002
	51	#define UFS_MOUNT_ONERROR_UMOUNT 0x00000004
	52	#define UFS_MOUNT_ONERROR_REPAIR 0x00000008
	53
	54	#define UFS_MOUNT_UFSTYPE 0x0000FFF0
	55	#define UFS_MOUNT_UFSTYPE_OLD 0x00000010
	56	#define UFS_MOUNT_UFSTYPE_44BSD 0x00000020
	57	#define UFS_MOUNT_UFSTYPE_SUN 0x00000040
	58	#define UFS_MOUNT_UFSTYPE_NEXTSTEP 0x00000080
	59	#define UFS_MOUNT_UFSTYPE_NEXTSTEP_CD 0x00000100
	60	#define UFS_MOUNT_UFSTYPE_OPENSTEP 0x00000200
	61	#define UFS_MOUNT_UFSTYPE_SUNx86 0x00000400
	62	#define UFS_MOUNT_UFSTYPE_HP 0x00000800
	63	#define UFS_MOUNT_UFSTYPE_UFS2 0x00001000
	64	#define UFS_MOUNT_UFSTYPE_SUNOS 0x00002000
	65
	66	#define ufs_clear_opt(o,opt) o &= ~UFS_MOUNT_##opt
	67	#define ufs_set_opt(o,opt) o \|= UFS_MOUNT_##opt
	68	#define ufs_test_opt(o,opt) ((o) & UFS_MOUNT_##opt)
	69
	70	/*
	71	* Debug code
	72	*/
	73	#ifdef CONFIG_UFS_DEBUG
	74	# define UFSD(f, a...) { \
	75	printk ("UFSD (%s, %d): %s:", \
9746077a	76	__FILE__, __LINE__, __func__); \
bcd6d4ec CH	77	printk (f, ## a); \
	78	}
	79	#else
	80	# define UFSD(f, a...) /**/
	81	#endif
	82
	83	/* balloc.c */
	84	extern void ufs_free_fragments (struct inode *, u64, unsigned);
	85	extern void ufs_free_blocks (struct inode *, u64, unsigned);
	86	extern u64 ufs_new_fragments(struct inode , void , u64, u64,
	87	unsigned, int , struct page );
	88
	89	/* cylinder.c */
	90	extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
	91	extern void ufs_put_cylinder (struct super_block *, unsigned);
	92
	93	/* dir.c */
	94	extern const struct inode_operations ufs_dir_inode_operations;
	95	extern int ufs_add_link (struct dentry , struct inode );
89031bc7	96	extern ino_t ufs_inode_by_name(struct inode , const struct qstr );
bcd6d4ec	97	extern int ufs_make_empty(struct inode , struct inode );
89031bc7	98	extern struct ufs_dir_entry ufs_find_entry(struct inode , const struct qstr , struct page *);
bcd6d4ec CH	99	extern int ufs_delete_entry(struct inode , struct ufs_dir_entry , struct page *);
	100	extern int ufs_empty_dir (struct inode *);
	101	extern struct ufs_dir_entry ufs_dotdot(struct inode , struct page **);
	102	extern void ufs_set_link(struct inode dir, struct ufs_dir_entry de,
	103	struct page page, struct inode inode);
	104
	105	/* file.c */
	106	extern const struct inode_operations ufs_file_inode_operations;
	107	extern const struct file_operations ufs_file_operations;
bcd6d4ec CH	108	extern const struct address_space_operations ufs_aops;
	109
	110	/* ialloc.c */
	111	extern void ufs_free_inode (struct inode *inode);
6a9a06d9	112	extern struct inode * ufs_new_inode (struct inode *, umode_t);
bcd6d4ec CH	113
bcd6d4ec CH	114	/* inode.c */
b55c460d	115	extern struct inode ufs_iget(struct super_block , unsigned long);
a9185b41	116	extern int ufs_write_inode (struct inode , struct writeback_control );
bcd6d4ec	117	extern int ufs_sync_inode (struct inode *);
58e8268c	118	extern void ufs_evict_inode (struct inode *);
bcd6d4ec CH	119	extern int ufs_getfrag_block (struct inode inode, sector_t fragment, struct buffer_head bh_result, int create);
	120
	121	/* namei.c */
	122	extern const struct file_operations ufs_dir_operations;
	123
	124	/* super.c */
b9075fa9 JP	125	extern __printf(3, 4)
	126	void ufs_warning(struct super_block , const char , const char *, ...);
	127	extern __printf(3, 4)
	128	void ufs_error(struct super_block , const char , const char *, ...);
	129	extern __printf(3, 4)
	130	void ufs_panic(struct super_block , const char , const char *, ...);
9e9ad5f4	131	void ufs_mark_sb_dirty(struct super_block *sb);
bcd6d4ec CH	132
	133	/* symlink.c */
	134	extern const struct inode_operations ufs_fast_symlink_inode_operations;
311b9549	135	extern const struct inode_operations ufs_symlink_inode_operations;
bcd6d4ec CH	136
	137	/* truncate.c */
	138	extern int ufs_truncate (struct inode *, loff_t);
311b9549	139	extern int ufs_setattr(struct dentry dentry, struct iattr attr);
bcd6d4ec CH	140
	141	static inline struct ufs_sb_info UFS_SB(struct super_block sb)
	142	{
	143	return sb->s_fs_info;
	144	}
	145
	146	static inline struct ufs_inode_info UFS_I(struct inode inode)
	147	{
	148	return container_of(inode, struct ufs_inode_info, vfs_inode);
	149	}
	150
	151	/*
	152	* Give cylinder group number for a file system block.
	153	* Give cylinder group block number for a file system block.
	154	*/
	155	/* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
	156	static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
	157	{
	158	do_div(b, uspi->s_fpg);
	159	return b;
	160	}
	161	/* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
	162	static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
	163	{
	164	return do_div(b, uspi->s_fpg);
	165	}
	166
788257d6 AB	167	extern void lock_ufs(struct super_block *sb);
	168	extern void unlock_ufs(struct super_block *sb);
	169
bcd6d4ec	170	#endif /* _UFS_UFS_H */