2 files changed, 4 insertions, 2 deletions

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 7af64f3846a6..612343fdde94 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6347,7 +6347,8 @@ void md_do_sync(mddev_t *mddev)
                 if ((mddev->curr_resync > mddev->curr_resync_completed &&
                      (mddev->curr_resync - mddev->curr_resync_completed)
                     > (max_sectors >> 4)) ||
-                    j >= mddev->resync_max
+                    (j - mddev->curr_resync_completed)*2
+                    >= mddev->resync_max - mddev->curr_resync_completed
                         ) {
                         /* time to update curr_resync_completed */
                         blk_unplug(mddev->queue);
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 76892ac72544..4616bc3a6e71 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3940,7 +3940,8 @@ static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped
          * then we need to write out the superblock.
          */
         sector_nr += reshape_sectors;
-        if (sector_nr >= mddev->resync_max) {
+        if ((sector_nr - mddev->curr_resync_completed) * 2
+            >= mddev->resync_max - mddev->curr_resync_completed) {
                 /* Cannot proceed until we've updated the superblock... */
                 wait_event(conf->wait_for_overlap,
                            atomic_read(&conf->reshape_stripes) == 0);