diff --git a/init/builtins.cpp b/init/builtins.cpp
index a5b762c..7715424 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -1304,8 +1304,7 @@
     }
 
     if (!bootstrap) {
-        // Now start delayed services
-        ServiceList::GetInstance().MarkServicesUpdate();
+        ServiceList::GetInstance().StartDelayedServices();
     }
     return {};
 }
diff --git a/init/service.cpp b/init/service.cpp
index a0b3478..5e900ee 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -420,7 +420,7 @@
         }
     });
 
-    if (is_updatable() && !ServiceList::GetInstance().IsServicesUpdated()) {
+    if (is_updatable() && !IsDefaultMountNamespaceReady()) {
         // Don't delay the service for ExecStart() as the semantic is that
         // the caller might depend on the side effect of the execution.
         return Error() << "Cannot start an updatable service '" << name_
@@ -581,7 +581,7 @@
         }
     });
 
-    if (is_updatable() && !ServiceList::GetInstance().IsServicesUpdated()) {
+    if (is_updatable() && !IsDefaultMountNamespaceReady()) {
         ServiceList::GetInstance().DelayService(*this);
         return Error() << "Cannot start an updatable service '" << name_
                        << "' before configs from APEXes are all loaded. "
diff --git a/init/service_list.cpp b/init/service_list.cpp
index 937d82e..1c56e8a 100644
--- a/init/service_list.cpp
+++ b/init/service_list.cpp
@@ -76,10 +76,7 @@
     return post_data_;
 }
 
-void ServiceList::MarkServicesUpdate() {
-    services_update_finished_ = true;
-
-    // start the delayed services
+void ServiceList::StartDelayedServices() {
     for (const auto& name : delayed_service_names_) {
         Service* service = FindService(name);
         if (service == nullptr) {
@@ -94,7 +91,7 @@
 }
 
 void ServiceList::DelayService(const Service& service) {
-    if (services_update_finished_) {
+    if (IsDefaultMountNamespaceReady()) {
         LOG(ERROR) << "Cannot delay the start of service '" << service.name()
                    << "' because all services are already updated. Ignoring.";
         return;
diff --git a/init/service_list.h b/init/service_list.h
index f858bc3..44e8453 100644
--- a/init/service_list.h
+++ b/init/service_list.h
@@ -85,14 +85,10 @@
 
     void MarkPostData();
     bool IsPostData();
-    void MarkServicesUpdate();
-    bool IsServicesUpdated() const { return services_update_finished_; }
     void DelayService(const Service& service);
+    void StartDelayedServices();
 
-    void ResetState() {
-        post_data_ = false;
-        services_update_finished_ = false;
-    }
+    void ResetState() { post_data_ = false; }
 
     auto size() const { return services_.size(); }
 
@@ -100,7 +96,6 @@
     std::vector<std::unique_ptr<Service>> services_;
 
     bool post_data_ = false;
-    bool services_update_finished_ = false;
     std::vector<std::string> delayed_service_names_;
 };