[libvirt] [PATCH] qemu: Unlink managed state file when a domain is undefined

[Osier Yang]

The managed state file is not useful anymore after the domain is
undefined, and perhaps cause confusion. E.g. define & start a domain
which has same name with previous undefined domain later.
---
 src/qemu/qemu_driver.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index f6e503a..874b455 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3739,6 +3739,7 @@ static int qemudDomainUndefine(virDomainPtr dom) {
     virDomainObjPtr vm;
     virDomainEventPtr event = NULL;
     int ret = -1;
+    char *managed_save = NULL;
 
     qemuDriverLock(driver);
     vm = virDomainFindByUUID(&driver->domains, dom->uuid);
@@ -3766,6 +3767,13 @@ static int qemudDomainUndefine(virDomainPtr dom) {
     if (virDomainDeleteConfig(driver->configDir, driver->autostartDir, vm) < 0)
         goto cleanup;
 
+    if (!(managed_save = qemuDomainManagedSavePath(driver, vm)))
+        goto cleanup;
+
+    if (virFileExists(managed_save) && (unlink(managed_save) < 0)) {
+        VIR_WARN("Failed to remove the managed state %s", managed_save);
+    }
+
     event = virDomainEventNewFromObj(vm,
                                      VIR_DOMAIN_EVENT_UNDEFINED,
                                      VIR_DOMAIN_EVENT_UNDEFINED_REMOVED);
-- 
1.7.4