7 files changed, 14 insertions, 7 deletions

diff --git a/sys/gnu/ext2fs/fs.h b/sys/gnu/ext2fs/fs.h
index 736051143918..785f267f8ac3 100644
--- a/sys/gnu/ext2fs/fs.h
+++ b/sys/gnu/ext2fs/fs.h
@@ -55,9 +55,8 @@
  * The first boot and super blocks are given in absolute disk addresses.
  * The byte-offset forms are preferred, as they don't imply a sector size.
  */
-#define BBSIZE		1024
 #define SBSIZE		1024
-#define	SBOFF		((off_t)(BBSIZE))
+#define SBLOCK		2
 
 /*
  * The path name on which the file system is mounted is maintained
diff --git a/sys/gnu/fs/ext2fs/fs.h b/sys/gnu/fs/ext2fs/fs.h
index 736051143918..785f267f8ac3 100644
--- a/sys/gnu/fs/ext2fs/fs.h
+++ b/sys/gnu/fs/ext2fs/fs.h
@@ -55,9 +55,8 @@
  * The first boot and super blocks are given in absolute disk addresses.
  * The byte-offset forms are preferred, as they don't imply a sector size.
  */
-#define BBSIZE		1024
 #define SBSIZE		1024
-#define	SBOFF		((off_t)(BBSIZE))
+#define SBLOCK		2
 
 /*
  * The path name on which the file system is mounted is maintained
diff --git a/sys/sys/disklabel.h b/sys/sys/disklabel.h
index 44eb997bf588..6928408a606f 100644
--- a/sys/sys/disklabel.h
+++ b/sys/sys/disklabel.h
@@ -88,6 +88,9 @@
 #define	MAXPARTITIONS	8
 #endif
 
+/* Size of bootblock area in sector-size neutral bytes */
+#define BBSIZE		8192
+
 #define	LABEL_PART	2		/* partition containing label */
 #define	RAW_PART	2		/* partition containing whole disk */
 #define	SWAP_PART	1		/* partition normally containing swap */
diff --git a/sys/sys/diskmbr.h b/sys/sys/diskmbr.h
index 44eb997bf588..6928408a606f 100644
--- a/sys/sys/diskmbr.h
+++ b/sys/sys/diskmbr.h
@@ -88,6 +88,9 @@
 #define	MAXPARTITIONS	8
 #endif
 
+/* Size of bootblock area in sector-size neutral bytes */
+#define BBSIZE		8192
+
 #define	LABEL_PART	2		/* partition containing label */
 #define	RAW_PART	2		/* partition containing whole disk */
 #define	SWAP_PART	1		/* partition normally containing swap */
diff --git a/sys/sys/diskpc98.h b/sys/sys/diskpc98.h
index 44eb997bf588..6928408a606f 100644
--- a/sys/sys/diskpc98.h
+++ b/sys/sys/diskpc98.h
@@ -88,6 +88,9 @@
 #define	MAXPARTITIONS	8
 #endif
 
+/* Size of bootblock area in sector-size neutral bytes */
+#define BBSIZE		8192
+
 #define	LABEL_PART	2		/* partition containing label */
 #define	RAW_PART	2		/* partition containing whole disk */
 #define	SWAP_PART	1		/* partition normally containing swap */
diff --git a/sys/ufs/ffs/ffs_snapshot.c b/sys/ufs/ffs/ffs_snapshot.c
index 257450b0b389..7965211d72ec 100644
--- a/sys/ufs/ffs/ffs_snapshot.c
+++ b/sys/ufs/ffs/ffs_snapshot.c
@@ -37,6 +37,7 @@
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/conf.h>
+#include <sys/disklabel.h>
 #include <sys/bio.h>
 #include <sys/buf.h>
 #include <sys/proc.h>
diff --git a/sys/ufs/ffs/fs.h b/sys/ufs/ffs/fs.h
index af7fd43dc528..da854f9496e6 100644
--- a/sys/ufs/ffs/fs.h
+++ b/sys/ufs/ffs/fs.h
@@ -58,12 +58,11 @@
  * The beginning of cylinder group cg in fs, is given by
  * the ``cgbase(fs, cg)'' macro.
  *
- * The first boot and super blocks are given in absolute disk addresses.
- * The byte-offset forms are preferred, as they don't imply a sector size.
+ * The size and offset of the super-block in sector-size neutral bytes.
  */
-#define BBSIZE		8192
 #define SBSIZE		8192
 #define	SBOFF		((off_t)(BBSIZE))
+#define SBLOCK		((ufs_daddr_t)(SBOFF / DEV_BSIZE))
 
 /* Max number of fragments per block, this is not tweakable */
 #define MAXFRAG 	8