diff --git a/src/hotspot/share/gc/parallel/mutableNUMASpace.cpp b/src/hotspot/share/gc/parallel/mutableNUMASpace.cpp
index 0c7d8de9bb5..ede1c570ece 100644
--- a/src/hotspot/share/gc/parallel/mutableNUMASpace.cpp
+++ b/src/hotspot/share/gc/parallel/mutableNUMASpace.cpp
@@ -92,18 +92,9 @@ void MutableNUMASpace::ensure_parsability() {
     LGRPSpace *ls = lgrp_spaces()->at(i);
     MutableSpace *s = ls->space();
     if (s->top() < top()) { // For all spaces preceding the one containing top()
-      if (s->free_in_words() > 0) {
-        HeapWord* cur_top = s->top();
-        size_t words_left_to_fill = pointer_delta(s->end(), s->top());;
-        while (words_left_to_fill > 0) {
-          size_t words_to_fill = MIN2(words_left_to_fill, CollectedHeap::filler_array_max_size());
-          assert(words_to_fill >= CollectedHeap::min_fill_size(),
-                 "Remaining size (%zu) is too small to fill (based on %zu and %zu)",
-                 words_to_fill, words_left_to_fill, CollectedHeap::filler_array_max_size());
-          CollectedHeap::fill_with_object(cur_top, words_to_fill);
-          cur_top += words_to_fill;
-          words_left_to_fill -= words_to_fill;
-        }
+      size_t free_words = s->free_in_words();
+      if (free_words > 0) {
+        CollectedHeap::fill_with_objects(s->top(), free_words);
       }
     } else {
       return;