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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/udf/udf_sb.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
Diffstat (limited to 'fs/udf/udf_sb.h')
-rw-r--r--fs/udf/udf_sb.h139
1 files changed, 139 insertions, 0 deletions
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
new file mode 100644
index 000000000000..0e54922daa09
--- /dev/null
+++ b/fs/udf/udf_sb.h
@@ -0,0 +1,139 @@
+#ifndef __LINUX_UDF_SB_H
+#define __LINUX_UDF_SB_H
+
+/* Since UDF 2.01 is ISO 13346 based... */
+#define UDF_SUPER_MAGIC			0x15013346
+
+#define UDF_MAX_READ_VERSION		0x0201
+#define UDF_MAX_WRITE_VERSION		0x0201
+
+#define UDF_FLAG_USE_EXTENDED_FE	0
+#define UDF_VERS_USE_EXTENDED_FE	0x0200
+#define UDF_FLAG_USE_STREAMS		1
+#define UDF_VERS_USE_STREAMS		0x0200
+#define UDF_FLAG_USE_SHORT_AD		2
+#define UDF_FLAG_USE_AD_IN_ICB		3
+#define UDF_FLAG_USE_FILE_CTIME_EA	4
+#define UDF_FLAG_STRICT			5
+#define UDF_FLAG_UNDELETE		6
+#define UDF_FLAG_UNHIDE			7
+#define UDF_FLAG_VARCONV		8
+#define UDF_FLAG_NLS_MAP		9
+#define UDF_FLAG_UTF8			10
+
+#define UDF_PART_FLAG_UNALLOC_BITMAP	0x0001
+#define UDF_PART_FLAG_UNALLOC_TABLE	0x0002
+#define UDF_PART_FLAG_FREED_BITMAP	0x0004
+#define UDF_PART_FLAG_FREED_TABLE	0x0008
+#define UDF_PART_FLAG_READ_ONLY		0x0010
+#define UDF_PART_FLAG_WRITE_ONCE	0x0020
+#define UDF_PART_FLAG_REWRITABLE	0x0040
+#define UDF_PART_FLAG_OVERWRITABLE	0x0080
+
+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;\
+	}\
+}
+
+#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);\
+	}\
+}
+
+#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);\
+	}\
+}
+
+#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);\
+}
+
+#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 )
+
+#endif /* __LINUX_UDF_SB_H */