udf_sb.h
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上传日期:2007-01-06
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- #ifndef __LINUX_UDF_SB_H
- #define __LINUX_UDF_SB_H
- /* Since UDF 1.50 is ISO 13346 based... */
- #define UDF_SUPER_MAGIC 0x15013346
- #define UDF_FLAG_STRICT 0x00000001U
- #define UDF_FLAG_UNDELETE 0x00000002U
- #define UDF_FLAG_UNHIDE 0x00000004U
- #define UDF_FLAG_VARCONV 0x00000008U
- /* following is set only when compiling outside kernel tree */
- #ifndef CONFIG_UDF_FS_EXT
- #define UDF_SB_ALLOC(X)
- #define UDF_SB_FREE(X)
- {
- if (UDF_SB(X))
- {
- if (UDF_SB_PARTMAPS(X))
- kfree(UDF_SB_PARTMAPS(X));
- UDF_SB_PARTMAPS(X) = NULL;
- }
- }
- #define UDF_SB(X) (&((X)->u.udf_sb))
- #else
- /* else we kmalloc a page to hold our stuff */
- #define UDF_SB_ALLOC(X)
- (UDF_SB(X) = kmalloc(sizeof(struct udf_sb_info), GFP_KERNEL))
- #define UDF_SB_FREE(X)
- {
- if (UDF_SB(X))
- {
- if (UDF_SB_PARTMAPS(X))
- kfree(UDF_SB_PARTMAPS(X));
- kfree(UDF_SB(X));
- UDF_SB(X) = NULL;
- }
- }
- #define UDF_SB(X) ((struct udf_sb_info *) ((X)->u.generic_sbp))
- #endif
- #define UDF_SB_ALLOC_PARTMAPS(X,Y)
- {
- UDF_SB_NUMPARTS(X) = Y;
- UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);
- memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);
- }
- #if LINUX_VERSION_CODE < KERNEL_VERSION(2,2,6)
- #define UDF_SB_RENAME_LOCK(X) ( UDF_SB(X)->s_rename_lock )
- #define UDF_SB_RENAME_WAIT(X) ( UDF_SB(X)->s_rename_wait )
- #endif
- #define IS_STRICT(X) ( UDF_SB(X)->s_flags & UDF_FLAG_STRICT )
- #define IS_UNDELETE(X) ( UDF_SB(X)->s_flags & UDF_FLAG_UNDELETE )
- #define IS_UNHIDE(X) ( UDF_SB(X)->s_flags & UDF_FLAG_UNHIDE )
- #define UDF_SB_SESSION(X) ( UDF_SB(X)->s_session )
- #define UDF_SB_ANCHOR(X) ( UDF_SB(X)->s_anchor )
- #define UDF_SB_NUMPARTS(X) ( UDF_SB(X)->s_partitions )
- #define UDF_SB_VOLUME(X) ( UDF_SB(X)->s_thisvolume )
- #define UDF_SB_LASTBLOCK(X) ( UDF_SB(X)->s_lastblock )
- #define UDF_SB_VOLDESC(X) ( UDF_SB(X)->s_voldesc )
- #define UDF_SB_LVIDBH(X) ( UDF_SB(X)->s_lvidbh )
- #define UDF_SB_LVID(X) ( (struct LogicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
- #define UDF_SB_LVIDIU(X) ( (struct LogicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(sb)->impUse[UDF_SB_LVID(sb)->numOfPartitions * 2 * sizeof(Uint32)/sizeof(Uint8)]) )
- #define UDF_SB_PARTITION(X) ( UDF_SB(X)->s_partition )
- #define UDF_SB_RECORDTIME(X) ( UDF_SB(X)->s_recordtime )
- #define UDF_SB_VOLIDENT(X) ( UDF_SB(X)->s_volident )
- #define UDF_SB_PARTMAPS(X) ( UDF_SB(X)->s_partmaps )
- #define UDF_SB_SERIALNUM(X) ( UDF_SB(X)->s_serialnum )
- #define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat )
- #define UDF_SB_BLOCK_BITMAP_NUMBER(X,Y) ( UDF_SB(X)->s_block_bitmap_number[Y] )
- #define UDF_SB_BLOCK_BITMAP(X,Y) ( UDF_SB(X)->s_block_bitmap[Y] )
- #define UDF_SB_LOADED_BLOCK_BITMAPS(X) ( UDF_SB(X)->s_loaded_block_bitmaps )
- #define UDF_SB_PARTTYPE(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_partition_type )
- #define UDF_SB_PARTROOT(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_partition_root )
- #define UDF_SB_PARTLEN(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_partition_len )
- #define UDF_SB_PARTVSN(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_volumeseqnum )
- #define UDF_SB_PARTNUM(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_partition_num )
- #define UDF_SB_TYPESPAR(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_type_specific.s_sparing )
- #define UDF_SB_TYPEVIRT(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_type_specific.s_virtual )
- #define UDF_SB_PARTFUNC(X,Y) ( UDF_SB_PARTMAPS(X)[Y].s_partition_func )
- #endif /* __LINUX_UDF_SB_H */