Merge pull request #45014 from CaoShuFeng/unit_for_freed_image_size

pkg/kubelet/images/image_gc_manager.go

@@ -274,7 +274,7 @@ func (im *realImageGCManager) GarbageCollect() error {
 		}
 
 		if freed < amountToFree {
-			err := fmt.Errorf("failed to garbage collect required amount of images. Wanted to free %d, but freed %d", amountToFree, freed)
+			err := fmt.Errorf("failed to garbage collect required amount of images. Wanted to free %d bytes, but freed %d bytes", amountToFree, freed)
 			im.recorder.Eventf(im.nodeRef, v1.EventTypeWarning, events.FreeDiskSpaceFailed, err.Error())
 			return err
 		}
@@ -347,7 +347,7 @@ func (im *realImageGCManager) freeSpace(bytesToFree int64, freeTime time.Time) (
 	}
 
 	if len(deletionErrors) > 0 {
-		return spaceFreed, fmt.Errorf("wanted to free %d, but freed %d space with errors in image deletion: %v", bytesToFree, spaceFreed, errors.NewAggregate(deletionErrors))
+		return spaceFreed, fmt.Errorf("wanted to free %d bytes, but freed %d bytes space with errors in image deletion: %v", bytesToFree, spaceFreed, errors.NewAggregate(deletionErrors))
 	}
 	return spaceFreed, nil
 }