diff --git a/init/builtins.cpp b/init/builtins.cpp
index dec6f40..15594e6 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -170,11 +170,30 @@
 }
 
 static int do_exec(const std::vector<std::string>& args) {
-    return ServiceManager::GetInstance().Exec(args) ? 0 : -1;
+    auto service = Service::MakeTemporaryOneshotService(args);
+    if (!service) {
+        LOG(ERROR) << "Failed to create exec service: " << android::base::Join(args, " ");
+        return -1;
+    }
+    if (!service->ExecStart()) {
+        LOG(ERROR) << "Failed to Start exec service";
+        return -1;
+    }
+    ServiceManager::GetInstance().AddService(std::move(service));
+    return 0;
 }
 
 static int do_exec_start(const std::vector<std::string>& args) {
-    return ServiceManager::GetInstance().ExecStart(args[1]) ? 0 : -1;
+    Service* service = ServiceManager::GetInstance().FindServiceByName(args[1]);
+    if (!service) {
+        LOG(ERROR) << "ExecStart(" << args[1] << "): Service not found";
+        return -1;
+    }
+    if (!service->ExecStart()) {
+        LOG(ERROR) << "ExecStart(" << args[1] << "): Could not start Service";
+        return -1;
+    }
+    return 0;
 }
 
 static int do_export(const std::vector<std::string>& args) {
diff --git a/init/init.cpp b/init/init.cpp
index 03f0bb7..a12afae 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -1180,10 +1180,10 @@
         // By default, sleep until something happens.
         int epoll_timeout_ms = -1;
 
-        if (!(waiting_for_prop || sm.IsWaitingForExec())) {
+        if (!(waiting_for_prop || Service::is_exec_service_running())) {
             am.ExecuteOneCommand();
         }
-        if (!(waiting_for_prop || sm.IsWaitingForExec())) {
+        if (!(waiting_for_prop || Service::is_exec_service_running())) {
             if (!shutting_down) {
                 auto next_process_restart_time = RestartProcesses();
 
diff --git a/init/reboot.cpp b/init/reboot.cpp
index ce81483..6002040 100644
--- a/init/reboot.cpp
+++ b/init/reboot.cpp
@@ -524,10 +524,8 @@
     // Skip wait for prop if it is in progress
     ResetWaitForProp();
 
-    // Skip wait for exec if it is in progress
-    if (ServiceManager::GetInstance().IsWaitingForExec()) {
-        ServiceManager::GetInstance().ClearExecWait();
-    }
+    // Clear EXEC flag if there is one pending
+    ServiceManager::GetInstance().ForEachService([](Service* s) { s->UnSetExec(); });
 
     return true;
 }
diff --git a/init/service.cpp b/init/service.cpp
index d72433a..7f79584 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -156,6 +156,7 @@
 }
 
 unsigned long Service::next_start_order_ = 1;
+bool Service::is_exec_service_running_ = false;
 
 Service::Service(const std::string& name, const std::vector<std::string>& args)
     : Service(name, 0, 0, 0, {}, 0, 0, "", args) {}
@@ -280,9 +281,9 @@
     std::for_each(descriptors_.begin(), descriptors_.end(),
                   std::bind(&DescriptorInfo::Clean, std::placeholders::_1));
 
-    if (flags_ & SVC_TEMPORARY) {
-        return;
-    }
+    if (flags_ & SVC_EXEC) UnSetExec();
+
+    if (flags_ & SVC_TEMPORARY) return;
 
     pid_ = 0;
     flags_ &= (~SVC_RUNNING);
@@ -653,15 +654,20 @@
     return (this->*parser)(args, err);
 }
 
-bool Service::ExecStart(std::unique_ptr<android::base::Timer>* exec_waiter) {
-    flags_ |= SVC_EXEC | SVC_ONESHOT;
-
-    exec_waiter->reset(new android::base::Timer);
+bool Service::ExecStart() {
+    flags_ |= SVC_ONESHOT;
 
     if (!Start()) {
-        exec_waiter->reset();
         return false;
     }
+
+    flags_ |= SVC_EXEC;
+    is_exec_service_running_ = true;
+
+    LOG(INFO) << "SVC_EXEC pid " << pid_ << " (uid " << uid_ << " gid " << gid_ << "+"
+              << supp_gids_.size() << " context " << (!seclabel_.empty() ? seclabel_ : "default")
+              << ") started; waiting...";
+
     return true;
 }
 
@@ -836,12 +842,6 @@
         }
     }
 
-    if ((flags_ & SVC_EXEC) != 0) {
-        LOG(INFO) << "SVC_EXEC pid " << pid_ << " (uid " << uid_ << " gid " << gid_ << "+"
-                  << supp_gids_.size() << " context "
-                  << (!seclabel_.empty() ? seclabel_ : "default") << ") started; waiting...";
-    }
-
     NotifyStateChange("running");
     return true;
 }
@@ -935,8 +935,6 @@
     close(fd);
 }
 
-int ServiceManager::exec_count_ = 0;
-
 ServiceManager::ServiceManager() {
 }
 
@@ -949,36 +947,7 @@
     services_.emplace_back(std::move(service));
 }
 
-bool ServiceManager::Exec(const std::vector<std::string>& args) {
-    Service* svc = MakeExecOneshotService(args);
-    if (!svc) {
-        LOG(ERROR) << "Could not create exec service";
-        return false;
-    }
-    if (!svc->ExecStart(&exec_waiter_)) {
-        LOG(ERROR) << "Could not start exec service";
-        ServiceManager::GetInstance().RemoveService(*svc);
-        return false;
-    }
-    return true;
-}
-
-bool ServiceManager::ExecStart(const std::string& name) {
-    Service* svc = FindServiceByName(name);
-    if (!svc) {
-        LOG(ERROR) << "ExecStart(" << name << "): Service not found";
-        return false;
-    }
-    if (!svc->ExecStart(&exec_waiter_)) {
-        LOG(ERROR) << "ExecStart(" << name << "): Could not start Service";
-        return false;
-    }
-    return true;
-}
-
-bool ServiceManager::IsWaitingForExec() const { return exec_waiter_ != nullptr; }
-
-Service* ServiceManager::MakeExecOneshotService(const std::vector<std::string>& args) {
+std::unique_ptr<Service> Service::MakeTemporaryOneshotService(const std::vector<std::string>& args) {
     // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS...
     // SECLABEL can be a - to denote default
     std::size_t command_arg = 1;
@@ -999,10 +968,11 @@
     }
     std::vector<std::string> str_args(args.begin() + command_arg, args.end());
 
-    exec_count_++;
-    std::string name = "exec " + std::to_string(exec_count_) + " (" + Join(str_args, " ") + ")";
+    static size_t exec_count = 0;
+    exec_count++;
+    std::string name = "exec " + std::to_string(exec_count) + " (" + Join(str_args, " ") + ")";
 
-    unsigned flags = SVC_EXEC | SVC_ONESHOT | SVC_TEMPORARY;
+    unsigned flags = SVC_ONESHOT | SVC_TEMPORARY;
     CapSet no_capabilities;
     unsigned namespace_flags = 0;
 
@@ -1037,12 +1007,8 @@
         }
     }
 
-    auto svc_p = std::make_unique<Service>(name, flags, uid, gid, supp_gids, no_capabilities,
-                                           namespace_flags, seclabel, str_args);
-    Service* svc = svc_p.get();
-    services_.emplace_back(std::move(svc_p));
-
-    return svc;
+    return std::make_unique<Service>(name, flags, uid, gid, supp_gids, no_capabilities,
+                                     namespace_flags, seclabel, str_args);
 }
 
 Service* ServiceManager::FindServiceByName(const std::string& name) const {
@@ -1154,8 +1120,10 @@
     if (svc) {
         name = StringPrintf("Service '%s' (pid %d)", svc->name().c_str(), pid);
         if (svc->flags() & SVC_EXEC) {
-            wait_string = StringPrintf(" waiting took %f seconds",
-                                       exec_waiter_->duration().count() / 1000.0f);
+            auto exec_duration = boot_clock::now() - svc->time_started();
+            auto exec_duration_ms =
+                std::chrono::duration_cast<std::chrono::milliseconds>(exec_duration).count();
+            wait_string = StringPrintf(" waiting took %f seconds", exec_duration_ms / 1000.0f);
         }
     } else {
         name = StringPrintf("Untracked pid %d", pid);
@@ -1174,9 +1142,6 @@
 
     svc->Reap();
 
-    if (svc->flags() & SVC_EXEC) {
-        exec_waiter_.reset();
-    }
     if (svc->flags() & SVC_TEMPORARY) {
         RemoveService(*svc);
     }
@@ -1189,15 +1154,6 @@
     }
 }
 
-void ServiceManager::ClearExecWait() {
-    // Clear EXEC flag if there is one pending
-    // And clear the wait flag
-    for (const auto& s : services_) {
-        s->UnSetExec();
-    }
-    exec_waiter_.reset();
-}
-
 bool ServiceParser::ParseSection(std::vector<std::string>&& args, const std::string& filename,
                                  int line, std::string* err) {
     if (args.size() < 3) {
diff --git a/init/service.h b/init/service.h
index 850aca4..4098005 100644
--- a/init/service.h
+++ b/init/service.h
@@ -73,9 +73,11 @@
             unsigned namespace_flags, const std::string& seclabel,
             const std::vector<std::string>& args);
 
+    static std::unique_ptr<Service> MakeTemporaryOneshotService(const std::vector<std::string>& args);
+
     bool IsRunning() { return (flags_ & SVC_RUNNING) != 0; }
     bool ParseLine(const std::vector<std::string>& args, std::string* err);
-    bool ExecStart(std::unique_ptr<android::base::Timer>* exec_waiter);
+    bool ExecStart();
     bool Start();
     bool StartIfNotDisabled();
     bool Enable();
@@ -87,7 +89,12 @@
     void DumpState() const;
     void SetShutdownCritical() { flags_ |= SVC_SHUTDOWN_CRITICAL; }
     bool IsShutdownCritical() const { return (flags_ & SVC_SHUTDOWN_CRITICAL) != 0; }
-    void UnSetExec() { flags_ &= ~SVC_EXEC; }
+    void UnSetExec() {
+        is_exec_service_running_ = false;
+        flags_ &= ~SVC_EXEC;
+    }
+
+    static bool is_exec_service_running() { return is_exec_service_running_; }
 
     const std::string& name() const { return name_; }
     const std::set<std::string>& classnames() const { return classnames_; }
@@ -151,6 +158,7 @@
     bool AddDescriptor(const std::vector<std::string>& args, std::string* err);
 
     static unsigned long next_start_order_;
+    static bool is_exec_service_running_;
 
     std::string name_;
     std::set<std::string> classnames_;
@@ -206,10 +214,6 @@
     ServiceManager();
 
     void AddService(std::unique_ptr<Service> service);
-    Service* MakeExecOneshotService(const std::vector<std::string>& args);
-    bool Exec(const std::vector<std::string>& args);
-    bool ExecStart(const std::string& name);
-    bool IsWaitingForExec() const;
     Service* FindServiceByName(const std::string& name) const;
     Service* FindServiceByPid(pid_t pid) const;
     Service* FindServiceByKeychord(int keychord_id) const;
@@ -220,16 +224,12 @@
     void ReapAnyOutstandingChildren();
     void RemoveService(const Service& svc);
     void DumpState() const;
-    void ClearExecWait();
 
   private:
     // Cleans up a child process that exited.
     // Returns true iff a children was cleaned up.
     bool ReapOneProcess();
 
-    static int exec_count_; // Every service needs a unique name.
-    std::unique_ptr<android::base::Timer> exec_waiter_;
-
     std::vector<std::unique_ptr<Service>> services_;
 };
 
diff --git a/init/service_test.cpp b/init/service_test.cpp
index 123c8a5..62e46f4 100644
--- a/init/service_test.cpp
+++ b/init/service_test.cpp
@@ -73,23 +73,21 @@
     EXPECT_FALSE(service_in_old_memory->process_cgroup_empty());
 }
 
-TEST(service, make_exec_oneshot_service_invalid_syntax) {
-    ServiceManager& sm = ServiceManager::GetInstance();
+TEST(service, make_temporary_oneshot_service_invalid_syntax) {
     std::vector<std::string> args;
     // Nothing.
-    ASSERT_EQ(nullptr, sm.MakeExecOneshotService(args));
+    ASSERT_EQ(nullptr, Service::MakeTemporaryOneshotService(args));
 
     // No arguments to 'exec'.
     args.push_back("exec");
-    ASSERT_EQ(nullptr, sm.MakeExecOneshotService(args));
+    ASSERT_EQ(nullptr, Service::MakeTemporaryOneshotService(args));
 
     // No command in "exec --".
     args.push_back("--");
-    ASSERT_EQ(nullptr, sm.MakeExecOneshotService(args));
+    ASSERT_EQ(nullptr, Service::MakeTemporaryOneshotService(args));
 }
 
-TEST(service, make_exec_oneshot_service_too_many_supplementary_gids) {
-    ServiceManager& sm = ServiceManager::GetInstance();
+TEST(service, make_temporary_oneshot_service_too_many_supplementary_gids) {
     std::vector<std::string> args;
     args.push_back("exec");
     args.push_back("seclabel");
@@ -100,12 +98,11 @@
     }
     args.push_back("--");
     args.push_back("/system/bin/id");
-    ASSERT_EQ(nullptr, sm.MakeExecOneshotService(args));
+    ASSERT_EQ(nullptr, Service::MakeTemporaryOneshotService(args));
 }
 
-static void Test_make_exec_oneshot_service(bool dash_dash, bool seclabel, bool uid, bool gid,
-                                           bool supplementary_gids) {
-    ServiceManager& sm = ServiceManager::GetInstance();
+static void Test_make_temporary_oneshot_service(bool dash_dash, bool seclabel, bool uid, bool gid,
+                                                bool supplementary_gids) {
     std::vector<std::string> args;
     args.push_back("exec");
     if (seclabel) {
@@ -126,7 +123,7 @@
     }
     args.push_back("/system/bin/toybox");
     args.push_back("id");
-    Service* svc = sm.MakeExecOneshotService(args);
+    auto svc = Service::MakeTemporaryOneshotService(args);
     ASSERT_NE(nullptr, svc);
 
     if (seclabel) {
@@ -167,28 +164,28 @@
     ASSERT_EQ("id", svc->args()[1]);
 }
 
-TEST(service, make_exec_oneshot_service_with_everything) {
-    Test_make_exec_oneshot_service(true, true, true, true, true);
+TEST(service, make_temporary_oneshot_service_with_everything) {
+    Test_make_temporary_oneshot_service(true, true, true, true, true);
 }
 
-TEST(service, make_exec_oneshot_service_with_seclabel_uid_gid) {
-    Test_make_exec_oneshot_service(true, true, true, true, false);
+TEST(service, make_temporary_oneshot_service_with_seclabel_uid_gid) {
+    Test_make_temporary_oneshot_service(true, true, true, true, false);
 }
 
-TEST(service, make_exec_oneshot_service_with_seclabel_uid) {
-    Test_make_exec_oneshot_service(true, true, true, false, false);
+TEST(service, make_temporary_oneshot_service_with_seclabel_uid) {
+    Test_make_temporary_oneshot_service(true, true, true, false, false);
 }
 
-TEST(service, make_exec_oneshot_service_with_seclabel) {
-    Test_make_exec_oneshot_service(true, true, false, false, false);
+TEST(service, make_temporary_oneshot_service_with_seclabel) {
+    Test_make_temporary_oneshot_service(true, true, false, false, false);
 }
 
-TEST(service, make_exec_oneshot_service_with_just_command) {
-    Test_make_exec_oneshot_service(true, false, false, false, false);
+TEST(service, make_temporary_oneshot_service_with_just_command) {
+    Test_make_temporary_oneshot_service(true, false, false, false, false);
 }
 
-TEST(service, make_exec_oneshot_service_with_just_command_no_dash) {
-    Test_make_exec_oneshot_service(false, false, false, false, false);
+TEST(service, make_temporary_oneshot_service_with_just_command_no_dash) {
+    Test_make_temporary_oneshot_service(false, false, false, false, false);
 }
 
 }  // namespace init