diff --git a/sys/cam/scsi/scsi_cd.c b/sys/cam/scsi/scsi_cd.c
index 0472e81a13b0..bbe33ecde8c5 100644
--- a/sys/cam/scsi/scsi_cd.c
+++ b/sys/cam/scsi/scsi_cd.c
@@ -1507,7 +1507,7 @@ cdstart(struct cam_periph *periph, union ccb *start_ccb)
 		} else {
 			bioq_remove(&softc->bio_queue, bp);
 
-			devstat_start_transaction(softc->device_stats);
+			devstat_start_transaction_bio(softc->device_stats, bp);
 
 			scsi_read_write(&start_ccb->csio,
 					/*retries*/4,
diff --git a/sys/cam/scsi/scsi_pt.c b/sys/cam/scsi/scsi_pt.c
index c02a4261a884..280093ad703e 100644
--- a/sys/cam/scsi/scsi_pt.c
+++ b/sys/cam/scsi/scsi_pt.c
@@ -502,7 +502,7 @@ ptstart(struct cam_periph *periph, union ccb *start_ccb)
 
 		bioq_remove(&softc->bio_queue, bp);
 
-		devstat_start_transaction(softc->device_stats);
+		devstat_start_transaction_bio(softc->device_stats, bp);
 
 		scsi_send_receive(&start_ccb->csio,
 				  /*retries*/4,
diff --git a/sys/cam/scsi/scsi_sa.c b/sys/cam/scsi/scsi_sa.c
index 3a8a03ac9568..acf5acfb8859 100644
--- a/sys/cam/scsi/scsi_sa.c
+++ b/sys/cam/scsi/scsi_sa.c
@@ -1620,7 +1620,7 @@ sastart(struct cam_periph *periph, union ccb *start_ccb)
 				CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
 				    ("Variable Record Count is %d\n", length));
 			}
-			devstat_start_transaction(softc->device_stats);
+			devstat_start_transaction_bio(softc->device_stats, bp);
 			/*
 			 * Some people have theorized that we should
 			 * suppress illegal length indication if we are
diff --git a/sys/dev/ata/atapi-tape.c b/sys/dev/ata/atapi-tape.c
index 5aecc16a64b5..891dbe45fe3f 100644
--- a/sys/dev/ata/atapi-tape.c
+++ b/sys/dev/ata/atapi-tape.c
@@ -477,7 +477,7 @@ ast_start(struct ata_device *atadev)
     ccb[3] = blkcount>>8;
     ccb[4] = blkcount;
 
-    devstat_start_transaction(stp->stats);
+    devstat_start_transaction_bio(stp->stats, bp);
 
     atapi_queue_cmd(stp->device, ccb, bp->bio_data, blkcount * stp->blksize, 
 		    (bp->bio_cmd == BIO_READ) ? ATPR_F_READ : 0,
diff --git a/sys/dev/fdc/fdc.c b/sys/dev/fdc/fdc.c
index dd0609a12290..16c17789dcf4 100644
--- a/sys/dev/fdc/fdc.c
+++ b/sys/dev/fdc/fdc.c
@@ -1724,7 +1724,7 @@ fdstrategy(struct bio *bp)
 	s = splbio();
 	bioqdisksort(&fdc->head, bp);
 	untimeout(fd_turnoff, fd, fd->toffhandle); /* a good idea */
-	devstat_start_transaction(fd->device_stats);
+	devstat_start_transaction_bio(fd->device_stats, bp);
 	device_busy(fd->dev);
 	fdstart(fdc);
 	splx(s);
diff --git a/sys/isa/fd.c b/sys/isa/fd.c
index dd0609a12290..16c17789dcf4 100644
--- a/sys/isa/fd.c
+++ b/sys/isa/fd.c
@@ -1724,7 +1724,7 @@ fdstrategy(struct bio *bp)
 	s = splbio();
 	bioqdisksort(&fdc->head, bp);
 	untimeout(fd_turnoff, fd, fd->toffhandle); /* a good idea */
-	devstat_start_transaction(fd->device_stats);
+	devstat_start_transaction_bio(fd->device_stats, bp);
 	device_busy(fd->dev);
 	fdstart(fdc);
 	splx(s);
diff --git a/sys/pc98/cbus/fdc.c b/sys/pc98/cbus/fdc.c
index 8cabd0af150d..01e27befdf8f 100644
--- a/sys/pc98/cbus/fdc.c
+++ b/sys/pc98/cbus/fdc.c
@@ -2153,7 +2153,7 @@ fdstrategy(struct bio *bp)
 	s = splbio();
 	bioqdisksort(&fdc->head, bp);
 	untimeout(fd_turnoff, fd, fd->toffhandle); /* a good idea */
-	devstat_start_transaction(fd->device_stats);
+	devstat_start_transaction_bio(fd->device_stats, bp);
 	device_busy(fd->dev);
 	fdstart(fdc);
 	splx(s);
diff --git a/sys/pc98/pc98/fd.c b/sys/pc98/pc98/fd.c
index 8cabd0af150d..01e27befdf8f 100644
--- a/sys/pc98/pc98/fd.c
+++ b/sys/pc98/pc98/fd.c
@@ -2153,7 +2153,7 @@ fdstrategy(struct bio *bp)
 	s = splbio();
 	bioqdisksort(&fdc->head, bp);
 	untimeout(fd_turnoff, fd, fd->toffhandle); /* a good idea */
-	devstat_start_transaction(fd->device_stats);
+	devstat_start_transaction_bio(fd->device_stats, bp);
 	device_busy(fd->dev);
 	fdstart(fdc);
 	splx(s);