commit 82452a5d7f55c7698459728a3ee071402f43bb4d
Author: Jim Fehlig <jfehlig@suse.com>
Date:   Wed Oct 31 10:54:14 2018 -0600

    libxl: Remove some goto labels in libxlDomainShutdownThread
    
    There are too many goto labels in libxlDomainShutdownThread. Convert the
    'destroy' and 'restart' labels to helper functions, leaving only the
    commonly used pattern of 'endjob' and 'cleanup' labels.
    
    Signed-off-by: Jim Fehlig <jfehlig@suse.com>
    ACKed-by: Michal Privoznik <mprivozn@redhat.com>

Index: libvirt-4.0.0/src/libxl/libxl_domain.c
===================================================================
--- libvirt-4.0.0.orig/src/libxl/libxl_domain.c
+++ libvirt-4.0.0/src/libxl/libxl_domain.c
@@ -424,6 +424,30 @@ virDomainDefParserConfig libxlDomainDefP
 };
 
 
+static void
+libxlDomainShutdownHandleDestroy(libxlDriverPrivatePtr driver,
+                                 virDomainObjPtr vm)
+{
+    libxlDomainDestroyInternal(driver, vm);
+    libxlDomainCleanup(driver, vm);
+    if (!vm->persistent)
+        virDomainObjListRemove(driver->domains, vm);
+}
+
+
+static void
+libxlDomainShutdownHandleRestart(libxlDriverPrivatePtr driver,
+                                 virDomainObjPtr vm)
+{
+    libxlDomainDestroyInternal(driver, vm);
+    libxlDomainCleanup(driver, vm);
+    if (libxlDomainStartNew(driver, vm, false) < 0) {
+        VIR_ERROR(_("Failed to restart VM '%s': %s"),
+                  vm->def->name, virGetLastErrorMessage());
+    }
+}
+
+
 struct libxlShutdownThreadInfo
 {
     libxlDriverPrivatePtr driver;
@@ -462,10 +486,12 @@ libxlDomainShutdownThread(void *opaque)
                                            VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN);
         switch ((virDomainLifecycleAction) vm->def->onPoweroff) {
         case VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY:
-            goto destroy;
+            libxlDomainShutdownHandleDestroy(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART:
         case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART_RENAME:
-            goto restart;
+            libxlDomainShutdownHandleRestart(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE:
         case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY:
         case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_RESTART:
@@ -481,19 +507,23 @@ libxlDomainShutdownThread(void *opaque)
                                            VIR_DOMAIN_EVENT_STOPPED_CRASHED);
         switch ((virDomainLifecycleAction) vm->def->onCrash) {
         case VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY:
-            goto destroy;
+            libxlDomainShutdownHandleDestroy(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART:
         case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART_RENAME:
-            goto restart;
+            libxlDomainShutdownHandleRestart(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE:
         case VIR_DOMAIN_LIFECYCLE_ACTION_LAST:
             goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY:
             libxlDomainAutoCoreDump(driver, vm);
-            goto destroy;
+            libxlDomainShutdownHandleDestroy(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_RESTART:
             libxlDomainAutoCoreDump(driver, vm);
-            goto restart;
+            libxlDomainShutdownHandleRestart(driver, vm);
+            goto endjob;
         }
     } else if (xl_reason == LIBXL_SHUTDOWN_REASON_REBOOT) {
         virDomainObjSetState(vm, VIR_DOMAIN_SHUTOFF,
@@ -504,10 +534,12 @@ libxlDomainShutdownThread(void *opaque)
                                            VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN);
         switch ((virDomainLifecycleAction) vm->def->onReboot) {
         case VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY:
-            goto destroy;
+            libxlDomainShutdownHandleDestroy(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART:
         case VIR_DOMAIN_LIFECYCLE_ACTION_RESTART_RENAME:
-            goto restart;
+            libxlDomainShutdownHandleRestart(driver, vm);
+            goto endjob;
         case VIR_DOMAIN_LIFECYCLE_ACTION_PRESERVE:
         case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_DESTROY:
         case VIR_DOMAIN_LIFECYCLE_ACTION_COREDUMP_RESTART:
@@ -516,23 +548,6 @@ libxlDomainShutdownThread(void *opaque)
         }
     } else {
         VIR_INFO("Unhandled shutdown_reason %d", xl_reason);
-        goto endjob;
-    }
-
- destroy:
-    libxlDomainDestroyInternal(driver, vm);
-    libxlDomainCleanup(driver, vm);
-    if (!vm->persistent)
-        virDomainObjListRemove(driver->domains, vm);
-
-    goto endjob;
-
- restart:
-    libxlDomainDestroyInternal(driver, vm);
-    libxlDomainCleanup(driver, vm);
-    if (libxlDomainStartNew(driver, vm, false) < 0) {
-        VIR_ERROR(_("Failed to restart VM '%s': %s"),
-                  vm->def->name, virGetLastErrorMessage());
     }
 
  endjob:
