File bab7ad4c-libxl-mig-job-fix.patch of Package libvirt.11695

commit bab7ad4cebb4bc808ebc77510655d6b71e8e4a17
Author: Jim Fehlig <jfehlig@suse.com>
Date:   Tue Jul 8 15:17:58 2014 -0600

    libxl: acquire job though begin phase only
    
    During migration, the libxl driver starts a modify job in the
    begin phase, ending the job in the confirm phase.  This is
    essentially VIR_MIGRATE_CHANGE_PROTECTION semantics, but the
    driver does not support that flag.  Without CHANGE_PROTECTION
    support, the job would never be terminated in error conditions
    where migrate confirm phase is not executed.  Further attempts
    to modify the domain would result in failure to acquire a job
    after LIBXL_JOB_WAIT_TIME.
    
    Similar to the qemu driver, end the job in the begin phase.
    Protecting the domain object across all phases of migration can
    be done in a future patch adding CHANGE_PROTECTION support.

Index: libvirt-1.2.5/src/libxl/libxl_driver.c
===================================================================
--- libvirt-1.2.5.orig/src/libxl/libxl_driver.c
+++ libvirt-1.2.5/src/libxl/libxl_driver.c
@@ -4496,11 +4496,8 @@ libxlDomainMigratePerform3Params(virDoma
         goto cleanup;
 
     if (libxlDomainMigrationPerform(driver, vm, dom_xml, dconnuri,
-                                    uri, dname, flags) < 0) {
-        /* Job terminated and vm unlocked if MigrationPerform failed */
-        vm = NULL;
+                                    uri, dname, flags) < 0)
         goto cleanup;
-    }
 
     ret = 0;
 
Index: libvirt-1.2.5/src/libxl/libxl_migration.c
===================================================================
--- libvirt-1.2.5.orig/src/libxl/libxl_migration.c
+++ libvirt-1.2.5/src/libxl/libxl_migration.c
@@ -216,6 +216,10 @@ libxlDomainMigrationBegin(virConnectPtr
 
     xml = virDomainDefFormat(def, VIR_DOMAIN_XML_SECURE);
 
+ endjob:
+    if (!libxlDomainObjEndJob(driver, vm))
+        vm = NULL;
+
  cleanup:
     if (vm)
         virObjectUnlock(vm);
@@ -223,11 +227,6 @@ libxlDomainMigrationBegin(virConnectPtr
     virDomainDefFree(tmpdef);
     virObjectUnref(cfg);
     return xml;
-
- endjob:
-    if (!libxlDomainObjEndJob(driver, vm))
-        vm = NULL;
-    goto cleanup;
 }
 
 virDomainDefPtr
@@ -469,11 +468,6 @@ libxlDomainMigrationPerform(libxlDriverP
     virObjectLock(vm);
 
  cleanup:
-    /* If failure, terminate the job started in MigrationBegin */
-    if (ret == -1) {
-        if (libxlDomainObjEndJob(driver, vm))
-            virObjectUnlock(vm);
-    }
     VIR_FORCE_CLOSE(sockfd);
     virURIFree(uri);
     return ret;
@@ -580,8 +574,6 @@ libxlDomainMigrationConfirm(libxlDriverP
     ret = 0;
 
  cleanup:
-    if (!libxlDomainObjEndJob(driver, vm))
-        vm = NULL;
     if (event)
         libxlDomainEventQueue(driver, event);
     if (vm)