1 files changed, 140 insertions, 95 deletions

diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 0e54922daa0..1f32c7bd9f5 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -1,10 +1,13 @@
 #ifndef __LINUX_UDF_SB_H
 #define __LINUX_UDF_SB_H
 
+#include <linux/mutex.h>
+#include <linux/bitops.h>
+
 /* Since UDF 2.01 is ISO 13346 based... */
 #define UDF_SUPER_MAGIC			0x15013346
 
-#define UDF_MAX_READ_VERSION		0x0201
+#define UDF_MAX_READ_VERSION		0x0250
 #define UDF_MAX_WRITE_VERSION		0x0201
 
 #define UDF_FLAG_USE_EXTENDED_FE	0
@@ -20,6 +23,15 @@
 #define UDF_FLAG_VARCONV		8
 #define UDF_FLAG_NLS_MAP		9
 #define UDF_FLAG_UTF8			10
+#define UDF_FLAG_UID_FORGET     11    /* save -1 for uid to disk */
+#define UDF_FLAG_UID_IGNORE     12    /* use sb uid instead of on disk uid */
+#define UDF_FLAG_GID_FORGET     13
+#define UDF_FLAG_GID_IGNORE     14
+#define UDF_FLAG_UID_SET	15
+#define UDF_FLAG_GID_SET	16
+#define UDF_FLAG_SESSION_SET	17
+#define UDF_FLAG_LASTBLOCK_SET	18
+#define UDF_FLAG_BLOCKSIZE_SET	19
 
 #define UDF_PART_FLAG_UNALLOC_BITMAP	0x0001
 #define UDF_PART_FLAG_UNALLOC_TABLE	0x0002
@@ -30,110 +42,143 @@
 #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
+#define UDF_METADATA_MAP25		0x2511U
+
+#define UDF_INVALID_MODE		((umode_t)-1)
+
+#pragma pack(1) /* XXX(hch): Why?  This file just defines in-core structures */
+
+#define MF_DUPLICATE_MD		0x01
+#define MF_MIRROR_FE_LOADED	0x02
+
+struct udf_meta_data {
+	__u32	s_meta_file_loc;
+	__u32	s_mirror_file_loc;
+	__u32	s_bitmap_file_loc;
+	__u32	s_alloc_unit_size;
+	__u16	s_align_unit_size;
+	int	s_flags;
+	struct inode *s_metadata_fe;
+	struct inode *s_mirror_fe;
+	struct inode *s_bitmap_fe;
+};
+
+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_extPosition;
+	int			s_nr_groups;
+	struct buffer_head 	*s_block_bitmap[0];
+};
+
+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;
+		struct udf_meta_data s_metadata;
+	} 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;
+	__u32			s_last_block;
+
+	struct buffer_head	*s_lvid_bh;
+
+	/* Default permissions */
+	umode_t			s_umask;
+	kgid_t			s_gid;
+	kuid_t			s_uid;
+	umode_t			s_fmode;
+	umode_t			s_dmode;
+	/* Lock protecting consistency of above permission settings */
+	rwlock_t		s_cred_lock;
+
+	/* 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 */
+	unsigned long		s_flags;
+
+	/* Encoding info */
+	struct nls_table	*s_nls_map;
+
+	/* VAT inode */
+	struct inode		*s_vat_inode;
+
+	struct mutex		s_alloc_mutex;
+	/* Protected by s_alloc_mutex */
+	unsigned int		s_lvid_dirty;
+};
+
 static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
 {
 	return sb->s_fs_info;
 }
 
-#define UDF_SB_FREE(X)\
-{\
-	if (UDF_SB(X))\
-	{\
-		if (UDF_SB_PARTMAPS(X))\
-			kfree(UDF_SB_PARTMAPS(X));\
-		UDF_SB_PARTMAPS(X) = NULL;\
-	}\
-}
+struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct super_block *sb);
 
-#define UDF_SB_ALLOC_PARTMAPS(X,Y)\
-{\
-	UDF_SB_PARTMAPS(X) = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\
-	if (UDF_SB_PARTMAPS(X) != NULL)\
-	{\
-		UDF_SB_NUMPARTS(X) = Y;\
-		memset(UDF_SB_PARTMAPS(X), 0x00, sizeof(struct udf_part_map) * Y);\
-	}\
-	else\
-	{\
-		UDF_SB_NUMPARTS(X) = 0;\
-		udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\
-	}\
-}
+int udf_compute_nr_groups(struct super_block *sb, u32 partition);
 
-#define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
-{\
-	int nr_groups = ((UDF_SB_PARTLEN((X),(Y)) + (sizeof(struct spaceBitmapDesc) << 3) +\
-		((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
-	int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
-	if (size <= PAGE_SIZE)\
-		UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
-	else\
-		UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap = vmalloc(size);\
-	if (UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap != NULL)\
-	{\
-		memset(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap, 0x00, size);\
-		UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap =\
-			(struct buffer_head **)(UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap + 1);\
-		UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
-	}\
-	else\
-	{\
-		udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
-	}\
+static inline int UDF_QUERY_FLAG(struct super_block *sb, int flag)
+{
+	return test_bit(flag, &UDF_SB(sb)->s_flags);
 }
 
-#define UDF_SB_FREE_BITMAP(X,Y,Z)\
-{\
-	int i;\
-	int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
-	int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
-	for (i=0; i<nr_groups; i++)\
-	{\
-		if (UDF_SB_BITMAP(X,Y,Z,i))\
-			udf_release_data(UDF_SB_BITMAP(X,Y,Z,i));\
-	}\
-	if (size <= PAGE_SIZE)\
-		kfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
-	else\
-		vfree(UDF_SB_PARTMAPS(X)[Y].Z.s_bitmap);\
+static inline void UDF_SET_FLAG(struct super_block *sb, int flag)
+{
+	set_bit(flag, &UDF_SB(sb)->s_flags);
 }
 
-#define UDF_QUERY_FLAG(X,Y)			( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
-#define UDF_SET_FLAG(X,Y)			( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
-#define UDF_CLEAR_FLAG(X,Y)			( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
-
-#define UDF_UPDATE_UDFREV(X,Y)			( ((Y) > UDF_SB_UDFREV(X)) ? UDF_SB_UDFREV(X) = (Y) : UDF_SB_UDFREV(X) )
-
-#define UDF_SB_PARTMAPS(X)			( UDF_SB(X)->s_partmaps )
-#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 )
-#define UDF_SB_PARTFLAGS(X,Y)			( UDF_SB_PARTMAPS(X)[(Y)].s_partition_flags )
-#define UDF_SB_BITMAP(X,Y,Z,I)			( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_block_bitmap[I] )
-#define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z)		( UDF_SB_PARTMAPS(X)[(Y)].Z.s_bitmap->s_nr_groups )
-
-#define UDF_SB_VOLIDENT(X)			( UDF_SB(X)->s_volident )
-#define UDF_SB_NUMPARTS(X)			( UDF_SB(X)->s_partitions )
-#define UDF_SB_PARTITION(X)			( UDF_SB(X)->s_partition )
-#define UDF_SB_SESSION(X)			( UDF_SB(X)->s_session )
-#define UDF_SB_ANCHOR(X)			( UDF_SB(X)->s_anchor )
-#define UDF_SB_LASTBLOCK(X)			( UDF_SB(X)->s_lastblock )
-#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(X)->impUse[le32_to_cpu(UDF_SB_LVID(X)->numOfPartitions) * 2 * sizeof(uint32_t)/sizeof(uint8_t)]) )
-
-#define UDF_SB_UMASK(X)				( UDF_SB(X)->s_umask )
-#define UDF_SB_GID(X)				( UDF_SB(X)->s_gid )
-#define UDF_SB_UID(X)				( UDF_SB(X)->s_uid )
-#define UDF_SB_RECORDTIME(X)			( UDF_SB(X)->s_recordtime )
-#define UDF_SB_SERIALNUM(X)			( UDF_SB(X)->s_serialnum )
-#define UDF_SB_UDFREV(X)			( UDF_SB(X)->s_udfrev )
-#define UDF_SB_FLAGS(X)				( UDF_SB(X)->s_flags )
-#define UDF_SB_VAT(X)				( UDF_SB(X)->s_vat )
+static inline void UDF_CLEAR_FLAG(struct super_block *sb, int flag)
+{
+	clear_bit(flag, &UDF_SB(sb)->s_flags);
+}
 
 #endif /* __LINUX_UDF_SB_H */