[libvirt] [PATCH 3/6] use virObject to manage reference-count of virDomainObj
Hu Tao
hutao at cn.fujitsu.com
Wed Apr 6 07:19:51 UTC 2011
This patch also eliminates a dead-lock bug in
qemuDomainObjBeginJobWithDriver: if virCondWaitUntil() timeouts, the
thread tries to acquire qemu driver lock while holding virDomainObj
lock.
---
src/conf/domain_conf.c | 56 ++++----
src/conf/domain_conf.h | 6 +-
src/openvz/openvz_conf.c | 8 +-
src/qemu/qemu_domain.c | 32 ++---
src/qemu/qemu_domain.h | 2 +-
src/qemu/qemu_driver.c | 304 ++++++++++++++++++++-------------------------
src/qemu/qemu_migration.c | 45 +++----
src/qemu/qemu_process.c | 33 ++---
src/vmware/vmware_conf.c | 2 +-
9 files changed, 215 insertions(+), 273 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 90a1317..fc76a00 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -47,6 +47,7 @@
#include "storage_file.h"
#include "files.h"
#include "bitmap.h"
+#include "virobject.h"
#define VIR_FROM_THIS VIR_FROM_DOMAIN
@@ -395,9 +396,7 @@ static void
virDomainObjListDataFree(void *payload, const void *name ATTRIBUTE_UNUSED)
{
virDomainObjPtr obj = payload;
- virDomainObjLock(obj);
- if (virDomainObjUnref(obj) > 0)
- virDomainObjUnlock(obj);
+ virDomainObjUnref(obj);
}
int virDomainObjListInit(virDomainObjListPtr doms)
@@ -437,7 +436,7 @@ virDomainObjPtr virDomainFindByID(const virDomainObjListPtr doms,
virDomainObjPtr obj;
obj = virHashSearch(doms->objs, virDomainObjListSearchID, &id);
if (obj)
- virDomainObjLock(obj);
+ virDomainObjRef(obj);
return obj;
}
@@ -452,7 +451,7 @@ virDomainObjPtr virDomainFindByUUID(const virDomainObjListPtr doms,
obj = virHashLookup(doms->objs, uuidstr);
if (obj)
- virDomainObjLock(obj);
+ virDomainObjRef(obj);
return obj;
}
@@ -476,7 +475,7 @@ virDomainObjPtr virDomainFindByName(const virDomainObjListPtr doms,
virDomainObjPtr obj;
obj = virHashSearch(doms->objs, virDomainObjListSearchName, name);
if (obj)
- virDomainObjLock(obj);
+ virDomainObjRef(obj);
return obj;
}
@@ -967,6 +966,12 @@ static void virDomainObjFree(virDomainObjPtr dom)
{
if (!dom)
return;
+ virDomainObjUnref(dom);
+}
+
+static void doDomainObjFree(virObjectPtr obj)
+{
+ virDomainObjPtr dom = (virDomainObjPtr)obj;
VIR_DEBUG("obj=%p", dom);
virDomainDefFree(dom->def);
@@ -984,21 +989,13 @@ static void virDomainObjFree(virDomainObjPtr dom)
void virDomainObjRef(virDomainObjPtr dom)
{
- dom->refs++;
- VIR_DEBUG("obj=%p refs=%d", dom, dom->refs);
+ virObjectRef(&dom->obj);
}
-int virDomainObjUnref(virDomainObjPtr dom)
+void virDomainObjUnref(virDomainObjPtr dom)
{
- dom->refs--;
- VIR_DEBUG("obj=%p refs=%d", dom, dom->refs);
- if (dom->refs == 0) {
- virDomainObjUnlock(dom);
- virDomainObjFree(dom);
- return 0;
- }
- return dom->refs;
+ virObjectUnref(&dom->obj);
}
static virDomainObjPtr virDomainObjNew(virCapsPtr caps)
@@ -1010,6 +1007,11 @@ static virDomainObjPtr virDomainObjNew(virCapsPtr caps)
return NULL;
}
+ if (virObjectInit(&domain->obj, doDomainObjFree)) {
+ VIR_FREE(domain);
+ return NULL;
+ }
+
if (caps->privateDataAllocFunc &&
!(domain->privateData = (caps->privateDataAllocFunc)())) {
virReportOOMError();
@@ -1027,9 +1029,7 @@ static virDomainObjPtr virDomainObjNew(virCapsPtr caps)
return NULL;
}
- virDomainObjLock(domain);
domain->state = VIR_DOMAIN_SHUTOFF;
- domain->refs = 1;
virDomainSnapshotObjListInit(&domain->snapshots);
@@ -1075,8 +1075,10 @@ virDomainObjPtr virDomainAssignDef(virCapsPtr caps,
domain->def = def;
virUUIDFormat(def->uuid, uuidstr);
+ virDomainObjRef(domain);
if (virHashAddEntry(doms->objs, uuidstr, domain) < 0) {
- VIR_FREE(domain);
+ virDomainObjUnref(domain);
+ virDomainObjFree(domain);
return NULL;
}
@@ -1149,9 +1151,7 @@ virDomainObjGetPersistentDef(virCapsPtr caps,
}
/*
- * The caller must hold a lock on the driver owning 'doms',
- * and must also have locked 'dom', to ensure no one else
- * is either waiting for 'dom' or still usingn it
+ * The caller must hold a lock on the driver owning 'doms'.
*/
void virDomainRemoveInactive(virDomainObjListPtr doms,
virDomainObjPtr dom)
@@ -1159,9 +1159,8 @@ void virDomainRemoveInactive(virDomainObjListPtr doms,
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->def->uuid, uuidstr);
- virDomainObjUnlock(dom);
-
virHashRemoveEntry(doms->objs, uuidstr);
+ virDomainObjUnref(dom);
}
@@ -6146,7 +6145,7 @@ static virDomainObjPtr virDomainObjParseXML(virCapsPtr caps,
error:
/* obj was never shared, so unref should return 0 */
- ignore_value(virDomainObjUnref(obj));
+ virDomainObjUnref(obj);
return NULL;
}
@@ -8449,10 +8448,12 @@ static virDomainObjPtr virDomainLoadConfig(virCapsPtr caps,
if (!(dom = virDomainAssignDef(caps, doms, def, false)))
goto error;
+ virDomainObjLock(dom);
dom->autostart = autostart;
if (notify)
(*notify)(dom, newVM, opaque);
+ virDomainObjUnlock(dom);
VIR_FREE(configFile);
VIR_FREE(autostartLink);
@@ -8501,9 +8502,8 @@ static virDomainObjPtr virDomainLoadStatus(virCapsPtr caps,
return obj;
error:
- /* obj was never shared, so unref should return 0 */
if (obj)
- ignore_value(virDomainObjUnref(obj));
+ virDomainObjUnref(obj);
VIR_FREE(statusFile);
return NULL;
}
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 10e73cb..3218672 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -40,6 +40,7 @@
# include "nwfilter_conf.h"
# include "macvtap.h"
# include "sysinfo.h"
+# include "virobject.h"
/* Private component of virDomainXMLFlags */
typedef enum {
@@ -1144,8 +1145,8 @@ struct _virDomainDef {
typedef struct _virDomainObj virDomainObj;
typedef virDomainObj *virDomainObjPtr;
struct _virDomainObj {
+ virObject obj;
virMutex lock;
- int refs;
int pid;
int state;
@@ -1226,8 +1227,7 @@ int virDomainDeviceInfoIterate(virDomainDefPtr def,
void virDomainDefFree(virDomainDefPtr vm);
void virDomainObjRef(virDomainObjPtr vm);
-/* Returns 1 if the object was freed, 0 if more refs exist */
-int virDomainObjUnref(virDomainObjPtr vm) ATTRIBUTE_RETURN_CHECK;
+void virDomainObjUnref(virDomainObjPtr vm);
/* live == true means def describes an active domain (being migrated or
* restored) as opposed to a new persistent configuration of the domain */
diff --git a/src/openvz/openvz_conf.c b/src/openvz/openvz_conf.c
index 88cd4c8..c08ed3b 100644
--- a/src/openvz/openvz_conf.c
+++ b/src/openvz/openvz_conf.c
@@ -472,6 +472,11 @@ int openvzLoadDomains(struct openvz_driver *driver) {
if (VIR_ALLOC(dom) < 0)
goto no_memory;
+ if (virObjectInit(&dom->obj, NULL)) {
+ VIR_FREE(dom);
+ goto cleanup;
+ }
+
if (virMutexInit(&dom->lock) < 0) {
openvzError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot initialize mutex"));
@@ -489,7 +494,6 @@ int openvzLoadDomains(struct openvz_driver *driver) {
else
dom->state = VIR_DOMAIN_RUNNING;
- dom->refs = 1;
dom->pid = veid;
dom->def->id = dom->state == VIR_DOMAIN_SHUTOFF ? -1 : veid;
/* XXX OpenVZ doesn't appear to have concept of a transient domain */
@@ -554,7 +558,7 @@ int openvzLoadDomains(struct openvz_driver *driver) {
VIR_FREE(outbuf);
/* dom hasn't been shared yet, so unref should return 0 */
if (dom)
- ignore_value(virDomainObjUnref(dom));
+ virDomainObjUnref(dom);
return -1;
}
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index c2a1f9a..3a3c953 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -457,13 +457,13 @@ int qemuDomainObjBeginJob(virDomainObjPtr obj)
}
then = timeval_to_ms(now) + QEMU_JOB_WAIT_TIME;
- virDomainObjRef(obj);
+ virDomainObjLock(obj);
while (priv->jobActive) {
if (virCondWaitUntil(&priv->jobCond, &obj->lock, then) < 0) {
- /* Safe to ignore value since ref count was incremented above */
- ignore_value(virDomainObjUnref(obj));
- if (errno == ETIMEDOUT)
+ int err = errno;
+ virDomainObjUnlock(obj);
+ if (err == ETIMEDOUT)
qemuReportError(VIR_ERR_OPERATION_TIMEOUT,
"%s", _("cannot acquire state change lock"));
else
@@ -482,12 +482,10 @@ int qemuDomainObjBeginJob(virDomainObjPtr obj)
}
/*
- * obj must be locked before calling, qemud_driver must be locked
- *
* This must be called by anything that will change the VM state
* in any way, or anything that will use the QEMU monitor.
*/
-int qemuDomainObjBeginJobWithDriver(struct qemud_driver *driver,
+int qemuDomainObjBeginJobWithDriver(struct qemud_driver *driver ATTRIBUTE_UNUSED,
virDomainObjPtr obj)
{
qemuDomainObjPrivatePtr priv = obj->privateData;
@@ -501,20 +499,18 @@ int qemuDomainObjBeginJobWithDriver(struct qemud_driver *driver,
}
then = timeval_to_ms(now) + QEMU_JOB_WAIT_TIME;
- virDomainObjRef(obj);
- qemuDriverUnlock(driver);
+ virDomainObjLock(obj);
while (priv->jobActive) {
if (virCondWaitUntil(&priv->jobCond, &obj->lock, then) < 0) {
- /* Safe to ignore value since ref count was incremented above */
- ignore_value(virDomainObjUnref(obj));
- if (errno == ETIMEDOUT)
+ int err = errno;
+ virDomainObjUnlock(obj);
+ if (err == ETIMEDOUT)
qemuReportError(VIR_ERR_OPERATION_TIMEOUT,
"%s", _("cannot acquire state change lock"));
else
virReportSystemError(errno,
"%s", _("cannot acquire job mutex"));
- qemuDriverLock(driver);
return -1;
}
}
@@ -524,10 +520,6 @@ int qemuDomainObjBeginJobWithDriver(struct qemud_driver *driver,
priv->jobStart = timeval_to_ms(now);
memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
- virDomainObjUnlock(obj);
- qemuDriverLock(driver);
- virDomainObjLock(obj);
-
return 0;
}
@@ -540,7 +532,7 @@ int qemuDomainObjBeginJobWithDriver(struct qemud_driver *driver,
* Returns remaining refcount on 'obj', maybe 0 to indicated it
* was deleted
*/
-int qemuDomainObjEndJob(virDomainObjPtr obj)
+void qemuDomainObjEndJob(virDomainObjPtr obj)
{
qemuDomainObjPrivatePtr priv = obj->privateData;
@@ -551,7 +543,7 @@ int qemuDomainObjEndJob(virDomainObjPtr obj)
memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
virCondSignal(&priv->jobCond);
- return virDomainObjUnref(obj);
+ virDomainObjUnlock(obj);
}
@@ -655,7 +647,7 @@ void qemuDomainObjExitRemoteWithDriver(struct qemud_driver *driver,
virDomainObjLock(obj);
/* Safe to ignore value, since we incremented ref in
* qemuDomainObjEnterRemoteWithDriver */
- ignore_value(virDomainObjUnref(obj));
+ virDomainObjUnref(obj);
}
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 8258900..12fd21d 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -97,7 +97,7 @@ void qemuDomainSetNamespaceHooks(virCapsPtr caps);
int qemuDomainObjBeginJob(virDomainObjPtr obj) ATTRIBUTE_RETURN_CHECK;
int qemuDomainObjBeginJobWithDriver(struct qemud_driver *driver,
virDomainObjPtr obj) ATTRIBUTE_RETURN_CHECK;
-int qemuDomainObjEndJob(virDomainObjPtr obj) ATTRIBUTE_RETURN_CHECK;
+void qemuDomainObjEndJob(virDomainObjPtr obj);
void qemuDomainObjEnterMonitor(virDomainObjPtr obj);
void qemuDomainObjExitMonitor(virDomainObjPtr obj);
void qemuDomainObjEnterMonitorWithDriver(struct qemud_driver *driver,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 48fe266..db89402 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -139,7 +139,6 @@ qemuAutostartDomain(void *payload, const void *name ATTRIBUTE_UNUSED, void *opaq
struct qemuAutostartData *data = opaque;
virErrorPtr err;
- virDomainObjLock(vm);
virResetLastError();
if (qemuDomainObjBeginJobWithDriver(data->driver, vm) < 0) {
err = virGetLastError();
@@ -156,12 +155,8 @@ qemuAutostartDomain(void *payload, const void *name ATTRIBUTE_UNUSED, void *opaq
err ? err->message : _("unknown error"));
}
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
}
-
- if (vm)
- virDomainObjUnlock(vm);
}
@@ -1055,12 +1050,13 @@ static virDomainPtr qemudDomainLookupByID(virConnectPtr conn,
goto cleanup;
}
+ virDomainObjLock(vm);
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
+ virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
return dom;
}
@@ -1082,12 +1078,13 @@ static virDomainPtr qemudDomainLookupByUUID(virConnectPtr conn,
goto cleanup;
}
+ virDomainObjLock(vm);
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
+ virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
return dom;
}
@@ -1107,12 +1104,13 @@ static virDomainPtr qemudDomainLookupByName(virConnectPtr conn,
goto cleanup;
}
+ virDomainObjLock(vm);
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
+ virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
return dom;
}
@@ -1133,11 +1131,13 @@ static int qemuDomainIsActive(virDomainPtr dom)
_("no domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
+
+ virDomainObjLock(obj);
ret = virDomainObjIsActive(obj);
+ virDomainObjUnlock(obj);
+ virDomainObjUnref(obj);
cleanup:
- if (obj)
- virDomainObjUnlock(obj);
return ret;
}
@@ -1157,11 +1157,13 @@ static int qemuDomainIsPersistent(virDomainPtr dom)
_("no domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
+ virDomainObjLock(obj);
ret = obj->persistent;
+ virDomainObjUnlock(obj);
cleanup:
if (obj)
- virDomainObjUnlock(obj);
+ virDomainObjUnref(obj);
return ret;
}
@@ -1181,11 +1183,13 @@ static int qemuDomainIsUpdated(virDomainPtr dom)
_("no domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
+ virDomainObjLock(obj);
ret = obj->updated;
+ virDomainObjUnlock(obj);
cleanup:
if (obj)
- virDomainObjUnlock(obj);
+ virDomainObjUnref(obj);
return ret;
}
@@ -1239,39 +1243,57 @@ static virDomainPtr qemudDomainCreate(virConnectPtr conn, const char *xml,
qemuDriverLock(driver);
if (!(def = virDomainDefParseString(driver->caps, xml,
- VIR_DOMAIN_XML_INACTIVE)))
+ VIR_DOMAIN_XML_INACTIVE))) {
+ qemuDriverUnlock(driver);
goto cleanup;
+ }
- if (virSecurityManagerVerify(driver->securityManager, def) < 0)
+ if (virSecurityManagerVerify(driver->securityManager, def) < 0) {
+ qemuDriverUnlock(driver);
goto cleanup;
+ }
- if (virDomainObjIsDuplicate(&driver->domains, def, 1) < 0)
+ if (virDomainObjIsDuplicate(&driver->domains, def, 1) < 0) {
+ qemuDriverUnlock(driver);
goto cleanup;
+ }
- if (qemudCanonicalizeMachine(driver, def) < 0)
+ if (qemudCanonicalizeMachine(driver, def) < 0) {
+ qemuDriverUnlock(driver);
goto cleanup;
+ }
- if (qemuDomainAssignPCIAddresses(def) < 0)
+ if (qemuDomainAssignPCIAddresses(def) < 0) {
+ qemuDriverUnlock(driver);
goto cleanup;
+ }
if (!(vm = virDomainAssignDef(driver->caps,
&driver->domains,
- def, false)))
+ def, false))) {
+ qemuDriverUnlock(driver);
goto cleanup;
+ }
+
+ qemuDriverUnlock(driver);
def = NULL;
- if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0)
+ if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0) {
+ virDomainObjUnref(vm);
goto cleanup; /* XXXX free the 'vm' we created ? */
+ }
if (qemuProcessStart(conn, driver, vm, NULL,
(flags & VIR_DOMAIN_START_PAUSED) != 0,
-1, NULL, VIR_VM_OP_CREATE) < 0) {
qemuAuditDomainStart(vm, "booted", false);
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains,
- vm);
- vm = NULL;
+ qemuDomainObjEndJob(vm);
+ qemuDriverLock(driver);
+ virDomainRemoveInactive(&driver->domains,
+ vm);
+ qemuDriverUnlock(driver);
+ virDomainObjUnref(vm);
goto cleanup;
}
@@ -1283,17 +1305,13 @@ static virDomainPtr qemudDomainCreate(virConnectPtr conn, const char *xml,
dom = virGetDomain(conn, vm->def->name, vm->def->uuid);
if (dom) dom->id = vm->def->id;
- if (vm &&
- qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
+ virDomainObjUnref(vm);
cleanup:
virDomainDefFree(def);
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
- qemuDriverUnlock(driver);
return dom;
}
@@ -1307,13 +1325,14 @@ static int qemudDomainSuspend(virDomainPtr dom) {
qemuDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+ qemuDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
if (!virDomainObjIsActive(vm)) {
qemuReportError(VIR_ERR_OPERATION_INVALID,
@@ -1354,16 +1373,12 @@ static int qemudDomainSuspend(virDomainPtr dom) {
}
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
-
+ virDomainObjUnref(vm);
if (event)
qemuDomainEventQueue(driver, event);
- qemuDriverUnlock(driver);
return ret;
}
@@ -1376,6 +1391,7 @@ static int qemudDomainResume(virDomainPtr dom) {
qemuDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+ qemuDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
@@ -1409,15 +1425,12 @@ static int qemudDomainResume(virDomainPtr dom) {
ret = 0;
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
+ virDomainObjUnref(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
- qemuDriverUnlock(driver);
return ret;
}
@@ -1437,7 +1450,7 @@ static int qemudDomainShutdown(virDomainPtr dom) {
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
if (qemuDomainObjBeginJob(vm) < 0)
@@ -1455,12 +1468,10 @@ static int qemudDomainShutdown(virDomainPtr dom) {
qemuDomainObjExitMonitor(vm);
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -1473,12 +1484,13 @@ static int qemudDomainDestroy(virDomainPtr dom) {
qemuDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+ qemuDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0)
@@ -1497,24 +1509,24 @@ static int qemudDomainDestroy(virDomainPtr dom) {
qemuAuditDomainStop(vm, "destroyed");
if (!vm->persistent) {
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains,
- vm);
+ qemuDomainObjEndJob(vm);
+ virDomainObjUnref(vm);
+ qemuDriverLock(driver);
+ virDomainRemoveInactive(&driver->domains, vm);
+ qemuDriverUnlock(driver);
vm = NULL;
}
ret = 0;
endjob:
- if (vm &&
- qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ if (vm)
+ qemuDomainObjEndJob(vm);
cleanup:
if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
if (event)
qemuDomainEventQueue(driver, event);
- qemuDriverUnlock(driver);
return ret;
}
@@ -1535,12 +1547,14 @@ static char *qemudDomainGetOSType(virDomainPtr dom) {
goto cleanup;
}
+ virDomainObjLock(vm);
if (!(type = strdup(vm->def->os.type)))
virReportOOMError();
+ virDomainObjUnlock(vm);
cleanup:
if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return type;
}
@@ -1562,11 +1576,13 @@ static unsigned long qemudDomainGetMaxMemory(virDomainPtr dom) {
goto cleanup;
}
+ virDomainObjLock(vm);
ret = vm->def->mem.max_balloon;
+ virDomainObjUnlock(vm);
cleanup:
if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -1594,18 +1610,18 @@ static int qemudDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
+ if (qemuDomainObjBeginJob(vm) < 0)
+ goto cleanup;
+
if (newmem > vm->def->mem.max_balloon) {
qemuReportError(VIR_ERR_INVALID_ARG,
"%s", _("cannot set memory higher than max memory"));
- goto cleanup;
+ goto endjob;
}
- if (qemuDomainObjBeginJob(vm) < 0)
- goto cleanup;
-
if (!virDomainObjIsActive(vm) && (flags & VIR_DOMAIN_MEM_LIVE)) {
qemuReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
@@ -1647,12 +1663,10 @@ static int qemudDomainSetMemoryFlags(virDomainPtr dom, unsigned long newmem,
ret = 0;
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -1676,9 +1690,12 @@ static int qemudDomainGetInfo(virDomainPtr dom,
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
+ if (qemuDomainObjBeginJob(vm) < 0)
+ goto cleanup;
+
info->state = vm->state;
if (!virDomainObjIsActive(vm)) {
@@ -1687,7 +1704,7 @@ static int qemudDomainGetInfo(virDomainPtr dom,
if (qemudGetProcessInfo(&(info->cpuTime), NULL, vm->pid, 0) < 0) {
qemuReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("cannot read cputime for domain"));
- goto cleanup;
+ goto endjob;
}
}
@@ -1700,8 +1717,6 @@ static int qemudDomainGetInfo(virDomainPtr dom,
(vm->def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_NONE)) {
info->memory = vm->def->mem.max_balloon;
} else if (!priv->jobActive) {
- if (qemuDomainObjBeginJob(vm) < 0)
- goto cleanup;
if (!virDomainObjIsActive(vm))
err = 0;
else {
@@ -1709,10 +1724,6 @@ static int qemudDomainGetInfo(virDomainPtr dom,
err = qemuMonitorGetBalloonInfo(priv->mon, &balloon);
qemuDomainObjExitMonitor(vm);
}
- if (qemuDomainObjEndJob(vm) == 0) {
- vm = NULL;
- goto cleanup;
- }
if (err < 0)
goto cleanup;
@@ -1731,9 +1742,10 @@ static int qemudDomainGetInfo(virDomainPtr dom,
info->nrVirtCpu = vm->def->vcpus;
ret = 0;
+endjob:
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -2006,9 +2018,8 @@ static int qemudDomainSaveFlag(struct qemud_driver *driver, virDomainPtr dom,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_SAVED);
if (!vm->persistent) {
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains,
- vm);
+ qemuDomainObjEndJob(vm);
+ virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
@@ -2021,8 +2032,8 @@ endjob:
VIR_WARN0("Unable to resume guest CPUs after save failure");
}
}
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+
+ qemuDomainObjEndJob(vm);
}
cleanup:
@@ -2303,6 +2314,7 @@ static int qemudDomainCoreDump(virDomainPtr dom,
qemuDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
+ qemuDriverUnlock(driver);
if (!vm) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
@@ -2311,11 +2323,12 @@ static int qemudDomainCoreDump(virDomainPtr dom,
_("no domain with matching uuid '%s'"), uuidstr);
goto cleanup;
}
- priv = vm->privateData;
if (qemuDomainObjBeginJobWithDriver(driver, vm) < 0)
goto cleanup;
+ priv = vm->privateData;
+
if (!virDomainObjIsActive(vm)) {
qemuReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
@@ -2367,20 +2380,20 @@ endjob:
}
}
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
- else if ((ret == 0) && (flags & VIR_DUMP_CRASH) && !vm->persistent) {
+ qemuDomainObjEndJob(vm);
+ if ((ret == 0) && (flags & VIR_DUMP_CRASH) && !vm->persistent) {
+ qemuDriverLock(driver);
virDomainRemoveInactive(&driver->domains,
vm);
+ qemuDriverUnlock(driver);
vm = NULL;
}
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
- qemuDriverUnlock(driver);
+ if (vm)
+ virDomainObjUnref(vm);
return ret;
}
@@ -2403,9 +2416,6 @@ static void processWatchdogEvent(void *data, void *opaque)
break;
}
- qemuDriverLock(driver);
- virDomainObjLock(wdEvent->vm);
-
if (qemuDomainObjBeginJobWithDriver(driver, wdEvent->vm) < 0)
break;
@@ -2429,10 +2439,7 @@ static void processWatchdogEvent(void *data, void *opaque)
qemuReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("Resuming after dump failed"));
- if (qemuDomainObjEndJob(wdEvent->vm) > 0)
- virDomainObjUnlock(wdEvent->vm);
-
- qemuDriverUnlock(driver);
+ qemuDomainObjEndJob(wdEvent->vm);
VIR_FREE(dumpfile);
}
@@ -2533,7 +2540,7 @@ qemudDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
if (qemuDomainObjBeginJob(vm) < 0)
@@ -2608,12 +2615,10 @@ qemudDomainSetVcpusFlags(virDomainPtr dom, unsigned int nvcpus,
ret = virDomainSaveConfig(driver->configDir, persistentDef);
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -2645,7 +2650,7 @@ qemudDomainPinVcpu(virDomainPtr dom,
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
if (!virDomainObjIsActive(vm)) {
@@ -2690,8 +2695,7 @@ qemudDomainPinVcpu(virDomainPtr dom,
ret = 0;
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -2717,7 +2721,7 @@ qemudDomainGetVcpus(virDomainPtr dom,
virUUIDFormat(dom->uuid, uuidstr);
qemuReportError(VIR_ERR_NO_DOMAIN,
_("no domain with matching uuid '%s'"), uuidstr);
- goto cleanup;
+ return -1;
}
if (!virDomainObjIsActive(vm)) {
@@ -2780,8 +2784,7 @@ qemudDomainGetVcpus(virDomainPtr dom,
ret = maxinfo;
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
return ret;
}
@@ -3164,9 +3167,8 @@ qemuDomainRestore(virConnectPtr conn,
ret = qemuDomainSaveImageStartVM(conn, driver, vm, &fd, &header, path);
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
- else if (ret < 0 && !vm->persistent) {
+ qemuDomainObjEndJob(vm);
+ if (ret < 0 && !vm->persistent) {
virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
@@ -3174,8 +3176,6 @@ qemuDomainRestore(virConnectPtr conn,
cleanup:
virDomainDefFree(def);
VIR_FORCE_CLOSE(fd);
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -3254,10 +3254,7 @@ static char *qemudDomainDumpXML(virDomainPtr dom,
qemuDomainObjEnterMonitorWithDriver(driver, vm);
err = qemuMonitorGetBalloonInfo(priv->mon, &balloon);
qemuDomainObjExitMonitorWithDriver(driver, vm);
- if (qemuDomainObjEndJob(vm) == 0) {
- vm = NULL;
- goto cleanup;
- }
+ qemuDomainObjEndJob(vm);
if (err < 0)
goto cleanup;
if (err > 0)
@@ -3269,8 +3266,6 @@ static char *qemudDomainDumpXML(virDomainPtr dom,
ret = qemuDomainFormatXML(driver, vm, flags);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -3487,12 +3482,9 @@ qemudDomainStartWithFlags(virDomainPtr dom, unsigned int flags)
(flags & VIR_DOMAIN_START_PAUSED) != 0);
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -3859,8 +3851,7 @@ static int qemudDomainAttachDevice(virDomainPtr dom,
ret = -1;
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
if (cgroup)
@@ -3868,8 +3859,6 @@ cleanup:
qemuCapsFree(qemuCaps);
virDomainDeviceDefFree(dev);
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -3993,8 +3982,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
ret = -1;
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
if (cgroup)
@@ -4002,8 +3990,6 @@ cleanup:
qemuCapsFree(qemuCaps);
virDomainDeviceDefFree(dev);
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -4083,14 +4069,11 @@ static int qemudDomainDetachDevice(virDomainPtr dom,
ret = -1;
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
qemuCapsFree(qemuCaps);
virDomainDeviceDefFree(dev);
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -4802,12 +4785,9 @@ qemudDomainBlockStats (virDomainPtr dom,
qemuDomainObjExitMonitor(vm);
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
return ret;
}
@@ -4906,12 +4886,9 @@ qemudDomainMemoryStats (virDomainPtr dom,
"%s", _("domain is not running"));
}
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
return ret;
}
@@ -5064,15 +5041,12 @@ qemudDomainMemoryPeek (virDomainPtr dom,
ret = 0;
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
VIR_FORCE_CLOSE(fd);
unlink (tmp);
VIR_FREE(tmp);
- if (vm)
- virDomainObjUnlock(vm);
return ret;
}
@@ -5218,16 +5192,13 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
qemuDomainObjExitMonitor(vm);
}
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
} else {
ret = 0;
}
cleanup:
VIR_FORCE_CLOSE(fd);
- if (vm)
- virDomainObjUnlock(vm);
return ret;
}
@@ -6067,8 +6038,8 @@ cleanup:
_("resuming after snapshot failed"));
}
- if (qemuDomainObjEndJob(vm) == 0)
- *vmptr = NULL;
+ qemuDomainObjEndJob(vm);
+ *vmptr = NULL;
return ret;
}
@@ -6438,9 +6409,8 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_FROM_SNAPSHOT);
if (!vm->persistent) {
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains, vm);
- vm = NULL;
+ qemuDomainObjEndJob(vm);
+ virDomainRemoveInactive(&driver->domains, vm);
goto cleanup;
}
}
@@ -6454,14 +6424,12 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot,
ret = 0;
endjob:
- if (vm && qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ if (vm)
+ qemuDomainObjEndJob(vm);
cleanup:
if (event)
qemuDomainEventQueue(driver, event);
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
@@ -6675,12 +6643,9 @@ static int qemuDomainSnapshotDelete(virDomainSnapshotPtr snapshot,
ret = qemuDomainSnapshotDiscard(driver, vm, snap);
endjob:
- if (qemuDomainObjEndJob(vm) == 0)
- vm = NULL;
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
@@ -6727,14 +6692,9 @@ static int qemuDomainMonitorCommand(virDomainPtr domain, const char *cmd,
qemuDomainObjEnterMonitorWithDriver(driver, vm);
ret = qemuMonitorArbitraryCommand(priv->mon, cmd, result, hmp);
qemuDomainObjExitMonitorWithDriver(driver, vm);
- if (qemuDomainObjEndJob(vm) == 0) {
- vm = NULL;
- goto cleanup;
- }
+ qemuDomainObjEndJob(vm);
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
qemuDriverUnlock(driver);
return ret;
}
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 43741e1..462e6be 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -336,8 +336,8 @@ qemuMigrationPrepareTunnel(struct qemud_driver *driver,
qemuAuditDomainStart(vm, "migrated", false);
qemuProcessStop(driver, vm, 0);
if (!vm->persistent) {
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains, vm);
+ qemuDomainObjEndJob(vm);
+ virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
virReportSystemError(errno, "%s",
@@ -353,9 +353,10 @@ qemuMigrationPrepareTunnel(struct qemud_driver *driver,
ret = 0;
endjob:
- if (vm &&
- qemuDomainObjEndJob(vm) == 0)
+ if (vm) {
+ qemuDomainObjEndJob(vm);
vm = NULL;
+ }
/* We set a fake job active which is held across
* API calls until the finish() call. This prevents
@@ -374,11 +375,8 @@ cleanup:
virDomainDefFree(def);
VIR_FORCE_CLOSE(dataFD[0]);
VIR_FORCE_CLOSE(dataFD[1]);
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
- qemuDriverUnlock(driver);
return ret;
}
@@ -530,8 +528,8 @@ qemuMigrationPrepareDirect(struct qemud_driver *driver,
* should have already done that.
*/
if (!vm->persistent) {
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains, vm);
+ qemuDomainObjEndJob(vm);
+ virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
goto endjob;
@@ -544,9 +542,10 @@ qemuMigrationPrepareDirect(struct qemud_driver *driver,
ret = 0;
endjob:
- if (vm &&
- qemuDomainObjEndJob(vm) == 0)
+ if (vm) {
+ qemuDomainObjEndJob(vm);
vm = NULL;
+ }
/* We set a fake job active which is held across
* API calls until the finish() call. This prevents
@@ -565,8 +564,6 @@ cleanup:
virDomainDefFree(def);
if (ret != 0)
VIR_FREE(*uri_out);
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
return ret;
@@ -1090,8 +1087,8 @@ int qemuMigrationPerform(struct qemud_driver *driver,
VIR_DOMAIN_EVENT_STOPPED_MIGRATED);
if (!vm->persistent || (flags & VIR_MIGRATE_UNDEFINE_SOURCE)) {
virDomainDeleteConfig(driver->configDir, driver->autostartDir, vm);
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains, vm);
+ qemuDomainObjEndJob(vm);
+ virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
ret = 0;
@@ -1112,13 +1109,12 @@ endjob:
VIR_DOMAIN_EVENT_RESUMED,
VIR_DOMAIN_EVENT_RESUMED_MIGRATED);
}
- if (vm &&
- qemuDomainObjEndJob(vm) == 0)
+ if (vm) {
+ qemuDomainObjEndJob(vm);
vm = NULL;
+ }
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
return ret;
@@ -1266,20 +1262,19 @@ qemuMigrationFinish(struct qemud_driver *driver,
VIR_DOMAIN_EVENT_STOPPED,
VIR_DOMAIN_EVENT_STOPPED_FAILED);
if (!vm->persistent) {
- if (qemuDomainObjEndJob(vm) > 0)
- virDomainRemoveInactive(&driver->domains, vm);
+ qemuDomainObjEndJob(vm);
+ virDomainRemoveInactive(&driver->domains, vm);
vm = NULL;
}
}
endjob:
- if (vm &&
- qemuDomainObjEndJob(vm) == 0)
+ if (vm) {
+ qemuDomainObjEndJob(vm);
vm = NULL;
+ }
cleanup:
- if (vm)
- virDomainObjUnlock(vm);
if (event)
qemuDomainEventQueue(driver, event);
return dom;
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 48ecd5c..244b22a 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -604,8 +604,8 @@ static void qemuProcessHandleMonitorDestroy(qemuMonitorPtr mon,
priv = vm->privateData;
if (priv->mon == mon)
priv->mon = NULL;
- if (virDomainObjUnref(vm) > 0)
- virDomainObjUnlock(vm);
+ virDomainObjUnlock(vm);
+ virDomainObjUnref(vm);
}
static qemuMonitorCallbacks monitorCallbacks = {
@@ -644,7 +644,7 @@ qemuConnectMonitor(struct qemud_driver *driver, virDomainObjPtr vm)
/* Safe to ignore value since ref count was incremented above */
if (priv->mon == NULL)
- ignore_value(virDomainObjUnref(vm));
+ virDomainObjUnref(vm);
if (virSecurityManagerClearSocketLabel(driver->securityManager, vm) < 0) {
VIR_ERROR(_("Failed to clear security context for monitor for %s"),
@@ -1940,10 +1940,6 @@ qemuProcessReconnect(void *payload, const void *name ATTRIBUTE_UNUSED, void *opa
priv = obj->privateData;
- /* Hold an extra reference because we can't allow 'vm' to be
- * deleted if qemuConnectMonitor() failed */
- virDomainObjRef(obj);
-
/* XXX check PID liveliness & EXE path */
if (qemuConnectMonitor(driver, obj) < 0)
goto error;
@@ -1975,8 +1971,7 @@ qemuProcessReconnect(void *payload, const void *name ATTRIBUTE_UNUSED, void *opa
if (obj->def->id >= driver->nextvmid)
driver->nextvmid = obj->def->id + 1;
- if (virDomainObjUnref(obj) > 0)
- virDomainObjUnlock(obj);
+ virDomainObjUnlock(obj);
qemuCapsFree(qemuCaps);
return;
@@ -1984,21 +1979,17 @@ qemuProcessReconnect(void *payload, const void *name ATTRIBUTE_UNUSED, void *opa
error:
qemuCapsFree(qemuCaps);
if (!virDomainObjIsActive(obj)) {
- if (virDomainObjUnref(obj) > 0)
- virDomainObjUnlock(obj);
+ virDomainObjUnlock(obj);
return;
}
- if (virDomainObjUnref(obj) > 0) {
- /* We can't get the monitor back, so must kill the VM
- * to remove danger of it ending up running twice if
- * user tries to start it again later */
- qemuProcessStop(driver, obj, 0);
- if (!obj->persistent)
- virDomainRemoveInactive(&driver->domains, obj);
- else
- virDomainObjUnlock(obj);
- }
+ /* We can't get the monitor back, so must kill the VM
+ * to remove danger of it ending up running twice if
+ * user tries to start it again later */
+ qemuProcessStop(driver, obj, 0);
+ virDomainObjUnlock(obj);
+ if (!obj->persistent)
+ virDomainRemoveInactive(&driver->domains, obj);
}
/**
diff --git a/src/vmware/vmware_conf.c b/src/vmware/vmware_conf.c
index 6339248..6b59b18 100644
--- a/src/vmware/vmware_conf.c
+++ b/src/vmware/vmware_conf.c
@@ -205,7 +205,7 @@ cleanup:
VIR_FREE(vmx);
/* any non-NULL vm here has not been shared, so unref will return 0 */
if (vm)
- ignore_value(virDomainObjUnref(vm));
+ virDomainObjUnref(vm);
return ret;
}
--
1.7.3.1
--
Thanks,
Hu Tao
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