More random fixes

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.h b/fio.h
index d8c6595..7551ef6 100644
--- a/fio.h
+++ b/fio.h
@@ -683,7 +683,7 @@
 }
 
 #define BLOCKS_PER_MAP		(8 * sizeof(long))
-#define TO_MAP_BLOCK(td, f, b)	((b) / ((unsigned long long) (td)->o.rw_min_bs))
+#define TO_MAP_BLOCK(td, f, b)	(b)
 #define RAND_MAP_IDX(td, f, b)	(TO_MAP_BLOCK(td, f, b) / BLOCKS_PER_MAP)
 #define RAND_MAP_BIT(td, f, b)	(TO_MAP_BLOCK(td, f, b) & (BLOCKS_PER_MAP - 1))
 
@@ -981,6 +981,7 @@
 	FD_MEM,
 	FD_BLKTRACE,
 	FD_VERIFY,
+	FD_RANDOM,
 	FD_DEBUG_MAX,
 };