Version 5.1.281.9 (cherry-pick)

src/heap/incremental-marking.cc

Index: src/heap/incremental-marking.cc
diff --git a/src/heap/incremental-marking.cc b/src/heap/incremental-marking.cc
index 024e110766f983ac28ec574b435b567331f78ace..3636dce606e00c594b799febf5b77ef93079bd80 100644
--- a/src/heap/incremental-marking.cc
+++ b/src/heap/incremental-marking.cc
@@ -577,12 +577,9 @@ void IncrementalMarking::StartBlackAllocation() {
   DCHECK(FLAG_black_allocation);
   DCHECK(IsMarking());
   black_allocation_ = true;
-  PagedSpaces spaces(heap());
-  for (PagedSpace* space = spaces.next(); space != NULL;
-       space = spaces.next()) {
-    space->EmptyAllocationInfo();
-    space->free_list()->Reset();
-  }
+  OldSpace* old_space = heap()->old_space();
+  old_space->EmptyAllocationInfo();
+  old_space->free_list()->Reset();
   if (FLAG_trace_incremental_marking) {
     PrintF("[IncrementalMarking] Black allocation started\n");
   }