diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 4fcacd915d45..51d189615bda 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -18,6 +18,13 @@ struct shrink_control {
 	 */
 	unsigned long nr_to_scan;
 
+	/*
+	 * How many objects did scan_objects process?
+	 * This defaults to nr_to_scan before every call, but the callee
+	 * should track its actual progress.
+	 */
+	unsigned long nr_scanned;
+
 	/* current node being shrunk (for NUMA aware shrinkers) */
 	int nid;
 
diff --git a/mm/vmscan.c b/mm/vmscan.c
index f957afe900ec..095817820a56 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -393,14 +393,15 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
 		unsigned long nr_to_scan = min(batch_size, total_scan);
 
 		shrinkctl->nr_to_scan = nr_to_scan;
+		shrinkctl->nr_scanned = nr_to_scan;
 		ret = shrinker->scan_objects(shrinker, shrinkctl);
 		if (ret == SHRINK_STOP)
 			break;
 		freed += ret;
 
-		count_vm_events(SLABS_SCANNED, nr_to_scan);
-		total_scan -= nr_to_scan;
-		scanned += nr_to_scan;
+		count_vm_events(SLABS_SCANNED, shrinkctl->nr_scanned);
+		total_scan -= shrinkctl->nr_scanned;
+		scanned += shrinkctl->nr_scanned;
 
 		cond_resched();
 	}