[PATCH 3/7] qemu: driver: Always assume support for QEMU_CAPS_MIGRATION_PARAM_DOWNTIME

[Peter Krempa <pkrempa@xxxxxxxxxx>]

The 'downtime-limit' field of 'migrate-set-parameters' was introduced in
qemu-2.8, thus all qemu versions supported by libvirt use the new code.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
 src/qemu/qemu_driver.c | 30 +++++++++---------------------
 1 file changed, 9 insertions(+), 21 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a632945146..0a5239e136 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13059,10 +13059,8 @@ qemuDomainMigrateSetMaxDowntime(virDomainPtr dom,
 {
     virQEMUDriver *driver = dom->conn->privateData;
     virDomainObj *vm;
-    qemuDomainObjPrivate *priv;
     g_autoptr(qemuMigrationParams) migParams = NULL;
     int ret = -1;
-    int rc;

     virCheckFlags(0, -1);

@@ -13078,29 +13076,19 @@ qemuDomainMigrateSetMaxDowntime(virDomainPtr dom,
     if (virDomainObjCheckActive(vm) < 0)
         goto endjob;

-    priv = vm->privateData;
-
     VIR_DEBUG("Setting migration downtime to %llums", downtime);

-    if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_PARAM_DOWNTIME)) {
-        if (!(migParams = qemuMigrationParamsNew()))
-            goto endjob;
+    if (!(migParams = qemuMigrationParamsNew()))
+        goto endjob;

-        if (qemuMigrationParamsSetULL(migParams,
-                                      QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT,
-                                      downtime) < 0)
-            goto endjob;
+    if (qemuMigrationParamsSetULL(migParams,
+                                  QEMU_MIGRATION_PARAM_DOWNTIME_LIMIT,
+                                  downtime) < 0)
+        goto endjob;

-        if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
-                                     migParams, 0) < 0)
-            goto endjob;
-    } else {
-        qemuDomainObjEnterMonitor(driver, vm);
-        rc = qemuMonitorSetMigrationDowntime(priv->mon, downtime);
-        qemuDomainObjExitMonitor(vm);
-        if (rc < 0)
-            goto endjob;
-    }
+    if (qemuMigrationParamsApply(driver, vm, VIR_ASYNC_JOB_NONE,
+                                 migParams, 0) < 0)
+        goto endjob;

     ret = 0;

-- 
2.36.1