delete the hostport from usedmap

plugin/pkg/scheduler/schedulercache/cache_test.go

@@ -228,7 +228,7 @@ func TestExpirePod(t *testing.T) {
 			},
 			allocatableResource: &Resource{},
 			pods:                []*v1.Pod{testPods[1]},
-			usedPorts:           map[int]bool{80: false, 8080: true},
+			usedPorts:           map[int]bool{8080: true},
 		},
 	}}
 
@@ -277,7 +277,7 @@ func TestAddPodWillConfirm(t *testing.T) {
 			},
 			allocatableResource: &Resource{},
 			pods:                []*v1.Pod{testPods[0]},
-			usedPorts:           map[int]bool{80: true, 8080: false},
+			usedPorts:           map[int]bool{80: true},
 		},
 	}}
 

plugin/pkg/scheduler/schedulercache/node_info.go

@@ -403,7 +403,11 @@ func (n *NodeInfo) updateUsedPorts(pod *v1.Pod, used bool) {
 			// "0" is explicitly ignored in PodFitsHostPorts,
 			// which is the only function that uses this value.
 			if podPort.HostPort != 0 {
-				n.usedPorts[int(podPort.HostPort)] = used
+				if used {
+					n.usedPorts[int(podPort.HostPort)] = used
+				} else {
+					delete(n.usedPorts, int(podPort.HostPort))
+				}
 			}
 		}
 	}