1 files changed, 93 insertions, 0 deletions

diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 737d1c604eea..fb2a6e9f8dac 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -1,6 +1,8 @@
 #ifndef __LINUX_UDF_SB_H
 #define __LINUX_UDF_SB_H
 
+#include <linux/mutex.h>
+
 /* Since UDF 2.01 is ISO 13346 based... */
 #define UDF_SUPER_MAGIC			0x15013346
 
@@ -38,6 +40,97 @@
 #define UDF_PART_FLAG_REWRITABLE	0x0040
 #define UDF_PART_FLAG_OVERWRITABLE	0x0080
 
+#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
+
+#pragma pack(1) /* XXX(hch): Why?  This file just defines in-core structures */
+
+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_volume_ident[32];
+
+	/* Overall info */
+	__u16			s_partitions;
+	__u16			s_partition;
+
+	/* Sector headers */
+	__s32			s_session;
+	__u32			s_anchor[4];
+	__u32			s_last_block;
+
+	struct buffer_head	*s_lvid_bh;
+
+	/* Default permissions */
+	mode_t			s_umask;
+	gid_t			s_gid;
+	uid_t			s_uid;
+
+	/* Root Info */
+	struct timespec		s_record_time;
+
+	/* Fileset Info */
+	__u16			s_serial_number;
+
+	/* 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_inode;
+
+	struct mutex		s_alloc_mutex;
+};
+
 static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
 {
 	return sb->s_fs_info;