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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - fs/udf/udf_sb.h
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1 #ifndef __LINUX_UDF_SB_H
2 #define __LINUX_UDF_SB_H
4 /* Since UDF 2.01 is ISO 13346 based... */
5 #define UDF_SUPER_MAGIC 0x15013346
7 #define UDF_MAX_READ_VERSION 0x0201
8 #define UDF_MAX_WRITE_VERSION 0x0201
10 #define UDF_FLAG_USE_EXTENDED_FE 0
11 #define UDF_VERS_USE_EXTENDED_FE 0x0200
12 #define UDF_FLAG_USE_STREAMS 1
13 #define UDF_VERS_USE_STREAMS 0x0200
14 #define UDF_FLAG_USE_SHORT_AD 2
15 #define UDF_FLAG_USE_AD_IN_ICB 3
16 #define UDF_FLAG_USE_FILE_CTIME_EA 4
17 #define UDF_FLAG_STRICT 5
18 #define UDF_FLAG_UNDELETE 6
19 #define UDF_FLAG_UNHIDE 7
20 #define UDF_FLAG_VARCONV 8
21 #define UDF_FLAG_NLS_MAP 9
22 #define UDF_FLAG_UTF8 10
23 #define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */
24 #define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */
25 #define UDF_FLAG_GID_FORGET 13
26 #define UDF_FLAG_GID_IGNORE 14
28 #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001
29 #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002
30 #define UDF_PART_FLAG_FREED_BITMAP 0x0004
31 #define UDF_PART_FLAG_FREED_TABLE 0x0008
32 #define UDF_PART_FLAG_READ_ONLY 0x0010
33 #define UDF_PART_FLAG_WRITE_ONCE 0x0020
34 #define UDF_PART_FLAG_REWRITABLE 0x0040
35 #define UDF_PART_FLAG_OVERWRITABLE 0x0080
37 static inline struct udf_sb_info
*UDF_SB(struct super_block
*sb
)
42 #define UDF_SB_FREE(X)\
45 kfree(UDF_SB_PARTMAPS(X));\
46 UDF_SB_PARTMAPS(X) = NULL;\
50 #define UDF_SB_ALLOC_PARTMAPS(X,Y)\
52 UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
53 if (UDF_SB_PARTMAPS(X) != NULL) {\
54 UDF_SB_NUMPARTS(X) = Y;\
55 memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
57 UDF_SB_NUMPARTS(X) = 0;\
58 udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
62 #define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
64 int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
65 ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
66 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
67 if (size <= PAGE_SIZE)\
68 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
70 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = vmalloc(size);\
71 if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL) {\
72 memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00, size);\
73 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
74 (struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
75 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
77 udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
81 #define UDF_SB_FREE_BITMAP(X,Y,Z)\
84 int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
85 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
86 for (i = 0; i < nr_groups; i++) {\
87 if (UDF_SB_BITMAP(X,Y,Z,i))\
88 brelse(UDF_SB_BITMAP(X,Y,Z,i));\
90 if (size <= PAGE_SIZE)\
91 kfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
93 vfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
96 #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
97 #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
98 #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
100 #define UDF_UPDATE_UDFREV(X,Y) ( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
102 #define UDF_SB_PARTMAPS(X) ( UDF_SB(X)->s_partmaps )
103 #define UDF_SB_PARTTYPE(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type )
104 #define UDF_SB_PARTROOT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root )
105 #define UDF_SB_PARTLEN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len )
106 #define UDF_SB_PARTVSN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum )
107 #define UDF_SB_PARTNUM(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num )
108 #define UDF_SB_TYPESPAR(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing )
109 #define UDF_SB_TYPEVIRT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual )
110 #define UDF_SB_PARTFUNC(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func )
111 #define UDF_SB_PARTFLAGS(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
112 #define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
113 #define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
115 #define UDF_SB_VOLIDENT(X) ( UDF_SB(X)->s_volident )
116 #define UDF_SB_NUMPARTS(X) ( UDF_SB(X)->s_partitions )
117 #define UDF_SB_PARTITION(X) ( UDF_SB(X)->s_partition )
118 #define UDF_SB_SESSION(X) ( UDF_SB(X)->s_session )
119 #define UDF_SB_ANCHOR(X) ( UDF_SB(X)->s_anchor )
120 #define UDF_SB_LASTBLOCK(X) ( UDF_SB(X)->s_lastblock )
121 #define UDF_SB_LVIDBH(X) ( UDF_SB(X)->s_lvidbh )
122 #define UDF_SB_LVID(X) ( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
123 #define UDF_SB_LVIDIU(X) ( (struct logicalVolIntegrityDescImpUse *)&(UDF_SB_LVID(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) )
125 #define UDF_SB_UMASK(X) ( UDF_SB(X)->s_umask )
126 #define UDF_SB_GID(X) ( UDF_SB(X)->s_gid )
127 #define UDF_SB_UID(X) ( UDF_SB(X)->s_uid )
128 #define UDF_SB_RECORDTIME(X) ( UDF_SB(X)->s_recordtime )
129 #define UDF_SB_SERIALNUM(X) ( UDF_SB(X)->s_serialnum )
130 #define UDF_SB_UDFREV(X) ( UDF_SB(X)->s_udfrev )
131 #define UDF_SB_FLAGS(X) ( UDF_SB(X)->s_flags )
132 #define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat )
134 #endif /* __LINUX_UDF_SB_H */