--- linux-last/drivers/md/dm.c	Tue Nov 13 14:38:11 2001
+++ linux/drivers/md/dm.c	Tue Nov 13 14:38:30 2001
@@ -162,7 +162,7 @@
 }
 
 /* In 512-byte units */
-#define VOLUME_SIZE(minor) (_block_size[(minor)] >> 1)
+#define VOLUME_SIZE(minor) (_block_size[(minor)] << 1)
 
 static int dm_blk_ioctl(struct inode *inode, struct file *file,
 			uint command, ulong a)
