--- drbd/drbd_req.c	2009-10-07 21:29:57.964277921 +0200
+++ drbd/drbd_req.c	2009-10-07 21:55:32.817152584 +0200
@@ -61,7 +61,7 @@
 	part_stat_inc(cpu, &mdev->vdisk->part0, ios[rw]);
 	part_stat_add(cpu, &mdev->vdisk->part0, sectors[rw], bio_sectors(bio));
 	part_stat_unlock();
-	mdev->vdisk->part0.in_flight++;
+	mdev->vdisk->part0.in_flight[rw]++;
 #endif
 }
 
@@ -77,13 +77,13 @@
 #ifdef __disk_stat_add
 	__disk_stat_add(mdev->vdisk, ticks[rw], duration);
 	disk_round_stats(mdev->vdisk);
-	mdev->vdisk->in_flight--;
+	mdev->vdisk->in_flight[rw]--;
 #else
 	cpu = part_stat_lock();
 	part_stat_add(cpu, &mdev->vdisk->part0, ticks[rw], duration);
 	part_round_stats(cpu, &mdev->vdisk->part0);
 	part_stat_unlock();
-	mdev->vdisk->part0.in_flight--;
+	mdev->vdisk->part0.in_flight[rw]--;
 #endif
 }