net/mlx4: Fix firmware command timeout during interrupt test
[cascardo/linux.git] / fs / udf / udf_sb.h
1 #ifndef __LINUX_UDF_SB_H
2 #define __LINUX_UDF_SB_H
3
4 #include <linux/mutex.h>
5 #include <linux/bitops.h>
6 #include <linux/magic.h>
7
8 #define UDF_MAX_READ_VERSION            0x0250
9 #define UDF_MAX_WRITE_VERSION           0x0201
10
11 #define UDF_FLAG_USE_EXTENDED_FE        0
12 #define UDF_VERS_USE_EXTENDED_FE        0x0200
13 #define UDF_FLAG_USE_STREAMS            1
14 #define UDF_VERS_USE_STREAMS            0x0200
15 #define UDF_FLAG_USE_SHORT_AD           2
16 #define UDF_FLAG_USE_AD_IN_ICB          3
17 #define UDF_FLAG_USE_FILE_CTIME_EA      4
18 #define UDF_FLAG_STRICT                 5
19 #define UDF_FLAG_UNDELETE               6
20 #define UDF_FLAG_UNHIDE                 7
21 #define UDF_FLAG_VARCONV                8
22 #define UDF_FLAG_NLS_MAP                9
23 #define UDF_FLAG_UTF8                   10
24 #define UDF_FLAG_UID_FORGET     11    /* save -1 for uid to disk */
25 #define UDF_FLAG_UID_IGNORE     12    /* use sb uid instead of on disk uid */
26 #define UDF_FLAG_GID_FORGET     13
27 #define UDF_FLAG_GID_IGNORE     14
28 #define UDF_FLAG_UID_SET        15
29 #define UDF_FLAG_GID_SET        16
30 #define UDF_FLAG_SESSION_SET    17
31 #define UDF_FLAG_LASTBLOCK_SET  18
32 #define UDF_FLAG_BLOCKSIZE_SET  19
33
34 #define UDF_PART_FLAG_UNALLOC_BITMAP    0x0001
35 #define UDF_PART_FLAG_UNALLOC_TABLE     0x0002
36 #define UDF_PART_FLAG_FREED_BITMAP      0x0004
37 #define UDF_PART_FLAG_FREED_TABLE       0x0008
38 #define UDF_PART_FLAG_READ_ONLY         0x0010
39 #define UDF_PART_FLAG_WRITE_ONCE        0x0020
40 #define UDF_PART_FLAG_REWRITABLE        0x0040
41 #define UDF_PART_FLAG_OVERWRITABLE      0x0080
42
43 #define UDF_MAX_BLOCK_LOADED    8
44
45 #define UDF_TYPE1_MAP15                 0x1511U
46 #define UDF_VIRTUAL_MAP15               0x1512U
47 #define UDF_VIRTUAL_MAP20               0x2012U
48 #define UDF_SPARABLE_MAP15              0x1522U
49 #define UDF_METADATA_MAP25              0x2511U
50
51 #define UDF_INVALID_MODE                ((umode_t)-1)
52
53 #pragma pack(1) /* XXX(hch): Why?  This file just defines in-core structures */
54
55 #define MF_DUPLICATE_MD         0x01
56 #define MF_MIRROR_FE_LOADED     0x02
57
58 struct udf_meta_data {
59         __u32   s_meta_file_loc;
60         __u32   s_mirror_file_loc;
61         __u32   s_bitmap_file_loc;
62         __u32   s_alloc_unit_size;
63         __u16   s_align_unit_size;
64         /*
65          * Partition Reference Number of the associated physical / sparable
66          * partition
67          */
68         __u16   s_phys_partition_ref;
69         int     s_flags;
70         struct inode *s_metadata_fe;
71         struct inode *s_mirror_fe;
72         struct inode *s_bitmap_fe;
73 };
74
75 struct udf_sparing_data {
76         __u16   s_packet_len;
77         struct buffer_head *s_spar_map[4];
78 };
79
80 struct udf_virtual_data {
81         __u32   s_num_entries;
82         __u16   s_start_offset;
83 };
84
85 struct udf_bitmap {
86         __u32                   s_extPosition;
87         int                     s_nr_groups;
88         struct buffer_head      *s_block_bitmap[0];
89 };
90
91 struct udf_part_map {
92         union {
93                 struct udf_bitmap       *s_bitmap;
94                 struct inode            *s_table;
95         } s_uspace;
96         union {
97                 struct udf_bitmap       *s_bitmap;
98                 struct inode            *s_table;
99         } s_fspace;
100         __u32   s_partition_root;
101         __u32   s_partition_len;
102         __u16   s_partition_type;
103         __u16   s_partition_num;
104         union {
105                 struct udf_sparing_data s_sparing;
106                 struct udf_virtual_data s_virtual;
107                 struct udf_meta_data s_metadata;
108         } s_type_specific;
109         __u32   (*s_partition_func)(struct super_block *, __u32, __u16, __u32);
110         __u16   s_volumeseqnum;
111         __u16   s_partition_flags;
112 };
113
114 #pragma pack()
115
116 struct udf_sb_info {
117         struct udf_part_map     *s_partmaps;
118         __u8                    s_volume_ident[32];
119
120         /* Overall info */
121         __u16                   s_partitions;
122         __u16                   s_partition;
123
124         /* Sector headers */
125         __s32                   s_session;
126         __u32                   s_anchor;
127         __u32                   s_last_block;
128
129         struct buffer_head      *s_lvid_bh;
130
131         /* Default permissions */
132         umode_t                 s_umask;
133         kgid_t                  s_gid;
134         kuid_t                  s_uid;
135         umode_t                 s_fmode;
136         umode_t                 s_dmode;
137         /* Lock protecting consistency of above permission settings */
138         rwlock_t                s_cred_lock;
139
140         /* Root Info */
141         struct timespec         s_record_time;
142
143         /* Fileset Info */
144         __u16                   s_serial_number;
145
146         /* highest UDF revision we have recorded to this media */
147         __u16                   s_udfrev;
148
149         /* Miscellaneous flags */
150         unsigned long           s_flags;
151
152         /* Encoding info */
153         struct nls_table        *s_nls_map;
154
155         /* VAT inode */
156         struct inode            *s_vat_inode;
157
158         struct mutex            s_alloc_mutex;
159         /* Protected by s_alloc_mutex */
160         unsigned int            s_lvid_dirty;
161 };
162
163 static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
164 {
165         return sb->s_fs_info;
166 }
167
168 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
169
170 int udf_compute_nr_groups(struct super_block *sb, u32 partition);
171
172 static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
173 {
174         return test_bit(flag, &UDF_SB(sb)->s_flags);
175 }
176
177 static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
178 {
179         set_bit(flag, &UDF_SB(sb)->s_flags);
180 }
181
182 static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
183 {
184         clear_bit(flag, &UDF_SB(sb)->s_flags);
185 }
186
187 #endif /* __LINUX_UDF_SB_H */