[linux-2.6-block.git] / include / linux / udf_fs_sb.h

/*
 * udf_fs_sb.h
 * 
 * This include file is for the Linux kernel/module.
 *
 * COPYRIGHT
 *	This file is distributed under the terms of the GNU General Public
 *	License (GPL). Copies of the GPL can be obtained from:
 *		ftp://prep.ai.mit.edu/pub/gnu/GPL
 *	Each contributing author retains all rights to their own work.
 */

#ifndef _UDF_FS_SB_H
#define _UDF_FS_SB_H 1

#include <linux/mutex.h>

#pragma pack(1)

#define UDF_MAX_BLOCK_LOADED	8

#define UDF_TYPE1_MAP15			0x1511U
#define UDF_VIRTUAL_MAP15		0x1512U
#define UDF_VIRTUAL_MAP20		0x2012U
#define UDF_SPARABLE_MAP15		0x1522U

struct udf_sparing_data
{
	__u16	s_packet_len;
	struct buffer_head *s_spar_map[4];
};

struct udf_virtual_data
{
	__u32	s_num_entries;
	__u16	s_start_offset;
};

struct udf_bitmap
{
	__u32			s_extLength;
	__u32			s_extPosition;
	__u16			s_nr_groups;
	struct buffer_head 	**s_block_bitmap;
};

struct udf_part_map
{
	union
	{
		struct udf_bitmap	*s_bitmap;
		struct inode		*s_table;
	} s_uspace;
	union
	{
		struct udf_bitmap	*s_bitmap;
		struct inode		*s_table;
	} s_fspace;
	__u32	s_partition_root;
	__u32	s_partition_len;
	__u16	s_partition_type;
	__u16	s_partition_num;
	union
	{
		struct udf_sparing_data s_sparing;
		struct udf_virtual_data s_virtual;
	} s_type_specific;
	__u32	(*s_partition_func)(struct super_block *, __u32, __u16, __u32);
	__u16	s_volumeseqnum;
	__u16	s_partition_flags;
};

#pragma pack()

struct udf_sb_info
{
	struct udf_part_map	*s_partmaps;
	__u8			s_volume_ident[32];

	/* Overall info */
	__u16			s_partitions;
	__u16			s_partition;

	/* Sector headers */
	__s32			s_session;
	__u32			s_anchor[4];
	__u32			s_last_block;

	struct buffer_head	*s_lvid_bh;

	/* Default permissions */
	mode_t			s_umask;
	gid_t			s_gid;
	uid_t			s_uid;

	/* Root Info */
	struct timespec		s_record_time;

	/* Fileset Info */
	__u16			s_serial_number;

	/* highest UDF revision we have recorded to this media */
	__u16			s_udfrev;

	/* Miscellaneous flags */
	__u32			s_flags;

	/* Encoding info */
	struct nls_table	*s_nls_map;

	/* VAT inode */
	struct inode		*s_vat_inode;

	struct mutex		s_alloc_mutex;
};

#endif /* _UDF_FS_SB_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* udf_fs_sb.h
	3	*
	4	* This include file is for the Linux kernel/module.
	5	*
1da177e4 LT	6	* COPYRIGHT
	7	* This file is distributed under the terms of the GNU General Public
	8	* License (GPL). Copies of the GPL can be obtained from:
	9	* ftp://prep.ai.mit.edu/pub/gnu/GPL
	10	* Each contributing author retains all rights to their own work.
	11	*/
	12
	13	#ifndef _UDF_FS_SB_H
	14	#define _UDF_FS_SB_H 1
	15
1e7933de	16	#include <linux/mutex.h>
1da177e4 LT	17
	18	#pragma pack(1)
	19
	20	#define UDF_MAX_BLOCK_LOADED 8
	21
	22	#define UDF_TYPE1_MAP15 0x1511U
	23	#define UDF_VIRTUAL_MAP15 0x1512U
	24	#define UDF_VIRTUAL_MAP20 0x2012U
	25	#define UDF_SPARABLE_MAP15 0x1522U
	26
	27	struct udf_sparing_data
	28	{
	29	__u16 s_packet_len;
	30	struct buffer_head *s_spar_map[4];
	31	};
	32
	33	struct udf_virtual_data
	34	{
	35	__u32 s_num_entries;
	36	__u16 s_start_offset;
	37	};
	38
	39	struct udf_bitmap
	40	{
	41	__u32 s_extLength;
	42	__u32 s_extPosition;
	43	__u16 s_nr_groups;
	44	struct buffer_head **s_block_bitmap;
	45	};
	46
	47	struct udf_part_map
	48	{
	49	union
	50	{
	51	struct udf_bitmap *s_bitmap;
	52	struct inode *s_table;
	53	} s_uspace;
	54	union
	55	{
	56	struct udf_bitmap *s_bitmap;
	57	struct inode *s_table;
	58	} s_fspace;
	59	__u32 s_partition_root;
	60	__u32 s_partition_len;
	61	__u16 s_partition_type;
	62	__u16 s_partition_num;
	63	union
	64	{
	65	struct udf_sparing_data s_sparing;
	66	struct udf_virtual_data s_virtual;
	67	} s_type_specific;
	68	__u32 (s_partition_func)(struct super_block , __u32, __u16, __u32);
	69	__u16 s_volumeseqnum;
	70	__u16 s_partition_flags;
	71	};
	72
	73	#pragma pack()
	74
	75	struct udf_sb_info
	76	{
	77	struct udf_part_map *s_partmaps;
6c79e987	78	__u8 s_volume_ident[32];
1da177e4 LT	79
	80	/* Overall info */
	81	__u16 s_partitions;
	82	__u16 s_partition;
	83
	84	/* Sector headers */
	85	__s32 s_session;
	86	__u32 s_anchor[4];
6c79e987	87	__u32 s_last_block;
1da177e4	88
6c79e987	89	struct buffer_head *s_lvid_bh;
1da177e4 LT	90
	91	/* Default permissions */
	92	mode_t s_umask;
	93	gid_t s_gid;
	94	uid_t s_uid;
	95
	96	/* Root Info */
6c79e987	97	struct timespec s_record_time;
1da177e4 LT	98
1da177e4 LT	99	/* Fileset Info */
6c79e987	100	__u16 s_serial_number;
1da177e4 LT	101
	102	/* highest UDF revision we have recorded to this media */
	103	__u16 s_udfrev;
	104
	105	/* Miscellaneous flags */
	106	__u32 s_flags;
	107
	108	/* Encoding info */
	109	struct nls_table *s_nls_map;
	110
	111	/* VAT inode */
6c79e987	112	struct inode *s_vat_inode;
1da177e4	113
1e7933de	114	struct mutex s_alloc_mutex;
1da177e4 LT	115	};
	116
	117	#endif /* _UDF_FS_SB_H */