1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 541cbe3414bd..c4779ccba1c3 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -504,7 +504,7 @@ static int multipath_run (mddev_t *mddev)
         /*
          * Ok, everything is just fine now
          */
-        mddev->array_size = mddev->size;
+        mddev->array_sectors = mddev->size * 2;
 
         mddev->queue->unplug_fn = multipath_unplug;
         mddev->queue->backing_dev_info.congested_fn = multipath_congested;