Release 4.11 fs/udf/udf_sb.h

#ifndef __LINUX_UDF_SB_H

#define __LINUX_UDF_SB_H

#include <linux/mutex.h>
#include <linux/bitops.h>
#include <linux/magic.h>


#define UDF_MAX_READ_VERSION		0x0250

#define UDF_MAX_WRITE_VERSION		0x0201


#define UDF_FLAG_USE_EXTENDED_FE	0

#define UDF_VERS_USE_EXTENDED_FE	0x0200

#define UDF_FLAG_USE_STREAMS		1

#define UDF_VERS_USE_STREAMS		0x0200

#define UDF_FLAG_USE_SHORT_AD		2

#define UDF_FLAG_USE_AD_IN_ICB		3

#define UDF_FLAG_USE_FILE_CTIME_EA	4

#define UDF_FLAG_STRICT			5

#define UDF_FLAG_UNDELETE		6

#define UDF_FLAG_UNHIDE			7

#define UDF_FLAG_VARCONV		8

#define UDF_FLAG_NLS_MAP		9

#define UDF_FLAG_UTF8			10

#define UDF_FLAG_UID_FORGET     11    
/* save -1 for uid to disk */

#define UDF_FLAG_UID_IGNORE     12    
/* use sb uid instead of on disk uid */

#define UDF_FLAG_GID_FORGET     13

#define UDF_FLAG_GID_IGNORE     14

#define UDF_FLAG_UID_SET	15

#define UDF_FLAG_GID_SET	16

#define UDF_FLAG_SESSION_SET	17

#define UDF_FLAG_LASTBLOCK_SET	18

#define UDF_FLAG_BLOCKSIZE_SET	19


#define UDF_PART_FLAG_UNALLOC_BITMAP	0x0001

#define UDF_PART_FLAG_UNALLOC_TABLE	0x0002

#define UDF_PART_FLAG_FREED_BITMAP	0x0004

#define UDF_PART_FLAG_FREED_TABLE	0x0008

#define UDF_PART_FLAG_READ_ONLY		0x0010

#define UDF_PART_FLAG_WRITE_ONCE	0x0020

#define UDF_PART_FLAG_REWRITABLE	0x0040

#define UDF_PART_FLAG_OVERWRITABLE	0x0080


#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

#define UDF_METADATA_MAP25		0x2511U


#define UDF_INVALID_MODE		((umode_t)-1)

#pragma pack(1) /* XXX(hch): Why?  This file just defines in-core structures */


#define MF_DUPLICATE_MD		0x01

#define MF_MIRROR_FE_LOADED	0x02


struct udf_meta_data {
	
__u32	s_meta_file_loc;
	
__u32	s_mirror_file_loc;
	
__u32	s_bitmap_file_loc;
	
__u32	s_alloc_unit_size;
	
__u16	s_align_unit_size;
	/*
         * Partition Reference Number of the associated physical / sparable
         * partition
         */
	
__u16   s_phys_partition_ref;
	
int	s_flags;
	
struct inode *s_metadata_fe;
	
struct inode *s_mirror_fe;
	
struct inode *s_bitmap_fe;
};


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_extPosition;
	
int			s_nr_groups;
	
struct buffer_head 	*s_block_bitmap[0];
};


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;
		
struct udf_meta_data s_metadata;
	} 
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;
	
__u32			s_last_block;

	
struct buffer_head	*s_lvid_bh;

	/* Default permissions */
	
umode_t			s_umask;
	
kgid_t			s_gid;
	
kuid_t			s_uid;
	
umode_t			s_fmode;
	
umode_t			s_dmode;
	/* Lock protecting consistency of above permission settings */
	
rwlock_t		s_cred_lock;

	/* 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 */
	
unsigned long		s_flags;

	/* Encoding info */
	
struct nls_table	*s_nls_map;

	/* VAT inode */
	
struct inode		*s_vat_inode;

	
struct mutex		s_alloc_mutex;
	/* Protected by s_alloc_mutex */
	
unsigned int		s_lvid_dirty;
};



static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
{
	return sb->s_fs_info;
}

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struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);

int udf_compute_nr_groups(struct super_block *sb, u32 partition);



static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
{
	return test_bit(flag, &UDF_SB(sb)->s_flags);
}

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static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
{
	set_bit(flag, &UDF_SB(sb)->s_flags);
}

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static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
{
	clear_bit(flag, &UDF_SB(sb)->s_flags);
}

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24
85.71%
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14.29%
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#endif /* __LINUX_UDF_SB_H */
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Linus Torvalds (pre-git)
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Marcin Ślusarz
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Brian Gerst
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6.90%
Phillip Susi
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3.45%
Ben Fennema
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3.45%
Linus Torvalds
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Cyrill V. Gorcunov
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Miklos Szeredi
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Al Viro
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Clemens Ladisch
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Alden Tondettar
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Eric W. Biedermann
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Directory: fs/udf

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