diff -urN ref/drivers/block/linear.c lvm/drivers/block/linear.c
--- ref/drivers/block/linear.c	Fri Feb 11 00:05:33 2000
+++ lvm/drivers/block/linear.c	Wed Feb 23 01:27:15 2000
@@ -149,7 +149,6 @@
 	bh->b_rdev = tmp_dev->dev;
 	bh->b_rsector = (block - tmp_dev->offset) << 1;
 
-	generic_make_request(rw, bh);
 	return 0;
 }
 
diff -urN ref/drivers/block/md.c lvm/drivers/block/md.c
--- ref/drivers/block/md.c	Mon Feb 21 15:17:31 2000
+++ lvm/drivers/block/md.c	Wed Feb 23 01:27:15 2000
@@ -178,18 +178,14 @@
 	return;
 }
 
-void md_make_request (int rw, struct buffer_head * bh)
+int md_logical_volume (int rw, struct buffer_head * bh)
 {
 	mddev_t *mddev = kdev_to_mddev(bh->b_dev);
 
-	if (!mddev || !mddev->pers)
-		bh->b_end_io(bh, 0);
-	else {
-		if ((rw == READ || rw == READA) && buffer_uptodate(bh))
-			bh->b_end_io(bh, 1);
-		else
-			mddev->pers->make_request(mddev, rw, bh);
-	}
+	if (mddev && mddev->pers)
+		return mddev->pers->make_request(mddev, rw, bh);
+	else
+		return 1;
 }
 
 static mddev_t * alloc_mddev (kdev_t dev)
@@ -215,9 +211,9 @@
 	MD_INIT_LIST_HEAD(&mddev->all_mddevs);
 
 	q = &mddev->queue;
+	blk_logical_volume(&blk_dev[MAJOR_NR], md_logical_volume);
 	blk_init_queue(q, DEVICE_REQUEST);
 	blk_queue_pluggable(q, md_plug_device);
-	blk_queue_make_request(q, md_make_request);
 	
 	q->plug_tq.sync = 0;
         q->plug_tq.routine = &md_unplug_device;
diff -urN ref/drivers/block/raid0.c lvm/drivers/block/raid0.c
--- ref/drivers/block/raid0.c	Fri Feb 11 00:05:33 2000
+++ lvm/drivers/block/raid0.c	Wed Feb 23 01:27:15 2000
@@ -269,8 +269,6 @@
 	bh->b_rdev = tmp_dev->dev;
 	bh->b_rsector = rblock << 1;
 
-	generic_make_request(rw, bh);
-
 	return 0;
 
 bad_map: