ia64/linux-2.6.18-xen.hg

view fs/udf/udf_sb.h @ 524:7f8b544237bf

netfront: Allow netfront in domain 0.

This is useful if your physical network device is in a utility domain.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue Apr 15 15:18:58 2008 +0100 (2008-04-15)
parents 831230e53067
children
line source
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)
38 {
39 return sb->s_fs_info;
40 }
42 #define UDF_SB_FREE(X)\
43 {\
44 if (UDF_SB(X))\
45 {\
46 kfree(UDF_SB_PARTMAPS(X));\
47 UDF_SB_PARTMAPS(X) = NULL;\
48 }\
49 }
51 #define UDF_SB_ALLOC_PARTMAPS(X,Y)\
52 {\
53 UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
54 if (UDF_SB_PARTMAPS(X) != NULL)\
55 {\
56 UDF_SB_NUMPARTS(X) = Y;\
57 memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
58 }\
59 else\
60 {\
61 UDF_SB_NUMPARTS(X) = 0;\
62 udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
63 }\
64 }
66 #define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
67 {\
68 int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
69 ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
70 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
71 if (size <= PAGE_SIZE)\
72 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
73 else\
74 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = vmalloc(size);\
75 if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL)\
76 {\
77 memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00, size);\
78 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
79 (struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
80 UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
81 }\
82 else\
83 {\
84 udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
85 }\
86 }
88 #define UDF_SB_FREE_BITMAP(X,Y,Z)\
89 {\
90 int i;\
91 int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
92 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
93 for (i=0; i<nr_groups; i++)\
94 {\
95 if (UDF_SB_BITMAP(X,Y,Z,i))\
96 udf_release_data(UDF_SB_BITMAP(X,Y,Z,i));\
97 }\
98 if (size <= PAGE_SIZE)\
99 kfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
100 else\
101 vfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
102 }
104 #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
105 #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
106 #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
108 #define UDF_UPDATE_UDFREV(X,Y) ( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
110 #define UDF_SB_PARTMAPS(X) ( UDF_SB(X)->s_partmaps )
111 #define UDF_SB_PARTTYPE(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_type )
112 #define UDF_SB_PARTROOT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_root )
113 #define UDF_SB_PARTLEN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_len )
114 #define UDF_SB_PARTVSN(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_volumeseqnum )
115 #define UDF_SB_PARTNUM(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_num )
116 #define UDF_SB_TYPESPAR(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_sparing )
117 #define UDF_SB_TYPEVIRT(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_type_specific.s_virtual )
118 #define UDF_SB_PARTFUNC(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_func )
119 #define UDF_SB_PARTFLAGS(X,Y) ( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
120 #define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
121 #define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
123 #define UDF_SB_VOLIDENT(X) ( UDF_SB(X)->s_volident )
124 #define UDF_SB_NUMPARTS(X) ( UDF_SB(X)->s_partitions )
125 #define UDF_SB_PARTITION(X) ( UDF_SB(X)->s_partition )
126 #define UDF_SB_SESSION(X) ( UDF_SB(X)->s_session )
127 #define UDF_SB_ANCHOR(X) ( UDF_SB(X)->s_anchor )
128 #define UDF_SB_LASTBLOCK(X) ( UDF_SB(X)->s_lastblock )
129 #define UDF_SB_LVIDBH(X) ( UDF_SB(X)->s_lvidbh )
130 #define UDF_SB_LVID(X) ( (struct logicalVolIntegrityDesc *)UDF_SB_LVIDBH(X)->b_data )
131 #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)]) )
133 #define UDF_SB_UMASK(X) ( UDF_SB(X)->s_umask )
134 #define UDF_SB_GID(X) ( UDF_SB(X)->s_gid )
135 #define UDF_SB_UID(X) ( UDF_SB(X)->s_uid )
136 #define UDF_SB_RECORDTIME(X) ( UDF_SB(X)->s_recordtime )
137 #define UDF_SB_SERIALNUM(X) ( UDF_SB(X)->s_serialnum )
138 #define UDF_SB_UDFREV(X) ( UDF_SB(X)->s_udfrev )
139 #define UDF_SB_FLAGS(X) ( UDF_SB(X)->s_flags )
140 #define UDF_SB_VAT(X) ( UDF_SB(X)->s_vat )
142 #endif /* __LINUX_UDF_SB_H */