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qemu_snapshot: revert: move config prepare code to separate function

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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Pavel Hrdina 2021-11-26 11:56:31 +01:00
parent 137328747e
commit afdf188aa0
1 changed files with 59 additions and 36 deletions
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95
src/qemu/qemu_snapshot.c
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@ -1940,6 +1940,63 @@ qemuSnapshotRevertValidate(virDomainObj *vm,
}
static int
qemuSnapshotRevertPrep(virDomainMomentObj *snap,
virDomainSnapshotDef *snapdef,
virQEMUDriver *driver,
virDomainObj *vm,
virDomainDef **retConfig,
virDomainDef **retInactiveConfig)
{
qemuDomainObjPrivate *priv = vm->privateData;
g_autoptr(virDomainDef) config = NULL;
g_autoptr(virDomainDef) inactiveConfig = NULL;
config = virDomainDefCopy(snap->def->dom,
driver->xmlopt, priv->qemuCaps, true);
if (!config)
return -1;
if (STRNEQ(config->name, vm->def->name)) {
VIR_FREE(config->name);
config->name = g_strdup(vm->def->name);
}
if (snap->def->inactiveDom) {
inactiveConfig = virDomainDefCopy(snap->def->inactiveDom,
driver->xmlopt, priv->qemuCaps, true);
if (!inactiveConfig)
return -1;
if (STRNEQ(inactiveConfig->name, vm->def->name)) {
VIR_FREE(inactiveConfig->name);
inactiveConfig->name = g_strdup(vm->def->name);
}
} else {
/* Inactive domain definition is missing:
* - either this is an old active snapshot and we need to copy the
* active definition as an inactive one
* - or this is an inactive snapshot which means config contains the
* inactive definition.
*/
if (snapdef->state == VIR_DOMAIN_SNAPSHOT_RUNNING ||
snapdef->state == VIR_DOMAIN_SNAPSHOT_PAUSED) {
inactiveConfig = virDomainDefCopy(snap->def->dom,
driver->xmlopt, priv->qemuCaps, true);
if (!inactiveConfig)
return -1;
} else {
inactiveConfig = g_steal_pointer(&config);
}
}
*retConfig = g_steal_pointer(&config);
*retInactiveConfig = g_steal_pointer(&inactiveConfig);
return 0;
}
/* The domain is expected to be locked and inactive. */
static int
qemuSnapshotRevertInactive(virQEMUDriver *driver,
@ -1981,7 +2038,6 @@ qemuSnapshotRevert(virDomainObj *vm,
virObjectEvent *event = NULL;
virObjectEvent *event2 = NULL;
int detail;
qemuDomainObjPrivate *priv = vm->privateData;
int rc;
g_autoptr(virDomainDef) config = NULL;
g_autoptr(virDomainDef) inactiveConfig = NULL;
@ -2025,42 +2081,9 @@ qemuSnapshotRevert(virDomainObj *vm,
if (qemuSnapshotRevertValidate(vm, snap, snapdef, flags) < 0)
goto endjob;
config = virDomainDefCopy(snap->def->dom,
driver->xmlopt, priv->qemuCaps, true);
if (!config)
if (qemuSnapshotRevertPrep(snap, snapdef, driver, vm,
&config, &inactiveConfig) < 0) {
goto endjob;
if (STRNEQ(config->name, vm->def->name)) {
VIR_FREE(config->name);
config->name = g_strdup(vm->def->name);
}
if (snap->def->inactiveDom) {
inactiveConfig = virDomainDefCopy(snap->def->inactiveDom,
driver->xmlopt, priv->qemuCaps, true);
if (!inactiveConfig)
goto endjob;
if (STRNEQ(inactiveConfig->name, vm->def->name)) {
VIR_FREE(inactiveConfig->name);
inactiveConfig->name = g_strdup(vm->def->name);
}
} else {
/* Inactive domain definition is missing:
* - either this is an old active snapshot and we need to copy the
* active definition as an inactive one
* - or this is an inactive snapshot which means config contains the
* inactive definition.
*/
if (snapdef->state == VIR_DOMAIN_SNAPSHOT_RUNNING ||
snapdef->state == VIR_DOMAIN_SNAPSHOT_PAUSED) {
inactiveConfig = virDomainDefCopy(snap->def->dom,
driver->xmlopt, priv->qemuCaps, true);
if (!inactiveConfig)
goto endjob;
} else {
inactiveConfig = g_steal_pointer(&config);
}
}
cookie = (qemuDomainSaveCookie *) snapdef->cookie;