diff --git a/[refs] b/[refs]
index 5b62c5277bc0..d26c1f3e5b1b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d60b479d177a5735b6b4db6ee5280ef6653f50e7
+refs/heads/master: b81a040481233e5171cb3fbc62f44636d5ea18b2
diff --git a/trunk/drivers/md/bitmap.c b/trunk/drivers/md/bitmap.c
index a35561f8f57d..8f681da00277 100644
--- a/trunk/drivers/md/bitmap.c
+++ b/trunk/drivers/md/bitmap.c
@@ -420,6 +420,9 @@ void bitmap_update_sb(struct bitmap *bitmap)
 	/* Just in case these have been changed via sysfs: */
 	sb->daemon_sleep = cpu_to_le32(bitmap->mddev->bitmap_info.daemon_sleep/HZ);
 	sb->write_behind = cpu_to_le32(bitmap->mddev->bitmap_info.max_write_behind);
+	/* This might have been changed by a reshape */
+	sb->sync_size = cpu_to_le64(bitmap->mddev->resync_max_sectors);
+	sb->chunksize = cpu_to_le32(bitmap->mddev->bitmap_info.chunksize);
 	kunmap_atomic(sb);
 	write_page(bitmap, bitmap->storage.sb_page, 1);
 }