Index: head/sys/sys/buf.h
===================================================================
--- head/sys/sys/buf.h
+++ head/sys/sys/buf.h
@@ -211,9 +211,9 @@
 #define	B_NOCACHE	0x00008000	/* Do not cache block after use. */
 #define	B_MALLOC	0x00010000	/* malloced b_data */
 #define	B_CLUSTEROK	0x00020000	/* Pagein op, so swap() can count it. */
-#define	B_000400000	0x00040000	/* Available flag. */
-#define	B_000800000	0x00080000	/* Available flag. */
-#define	B_001000000	0x00100000	/* Available flag. */
+#define	B_00040000	0x00040000	/* Available flag. */
+#define	B_00080000	0x00080000	/* Available flag. */
+#define	B_00100000	0x00100000	/* Available flag. */
 #define	B_DIRTY		0x00200000	/* Needs writing later (in EXT2FS). */
 #define	B_RELBUF	0x00400000	/* Release VMIO buffer. */
 #define	B_FS_FLAG1	0x00800000	/* Available flag for FS use. */