Eric Lee / smarc-fsl-linux-kernel

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include/linux/udf_fs_sb.h 2.07 KB
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1da177e4c   Linus Torvalds   Linux-2.6.12-rc2 
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  /*
   * udf_fs_sb.h
   * 
   * This include file is for the Linux kernel/module.
   *
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   * 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
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  #include <linux/mutex.h>
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  #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_volident[32];
  
  	/* Overall info */
  	__u16			s_partitions;
  	__u16			s_partition;
  
  	/* Sector headers */
  	__s32			s_session;
  	__u32			s_anchor[4];
  	__u32			s_lastblock;
  
  	struct buffer_head	*s_lvidbh;
  
  	/* Default permissions */
  	mode_t			s_umask;
  	gid_t			s_gid;
  	uid_t			s_uid;
  
  	/* Root Info */
  	struct timespec		s_recordtime;
  
  	/* Fileset Info */
  	__u16			s_serialnum;
  
  	/* 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;
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  	struct mutex		s_alloc_mutex;
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  };
  
  #endif /* _UDF_FS_SB_H */