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qemu: fix using defaults when setting persistent iotune params

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virDomainSetBlockIoTune not simply sets the iotune params given in API
but use current settings for all the omitted params. Unfortunately
it uses current settings for active config when setting inactive
params. Let's fix it.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Nikolay Shirokovskiy 2020-01-08 09:49:28 +03:00 committed by Michal Privoznik
parent dd94f36ffb
commit bb36ae81a0
1 changed files with 9 additions and 2 deletions
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11
src/qemu/qemu_driver.c
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@ -19150,6 +19150,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
virDomainDefPtr def = NULL;
virDomainDefPtr persistentDef = NULL;
virDomainBlockIoTuneInfo info;
virDomainBlockIoTuneInfo conf_info;
g_autofree char *drivealias = NULL;
const char *qdevid = NULL;
int ret = -1;
@ -19213,6 +19214,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
return -1;
memset(&info, 0, sizeof(info));
memset(&conf_info, 0, sizeof(conf_info));
if (!(vm = qemuDomainObjFromDomain(dom)))
return -1;
@ -19337,6 +19339,8 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
goto endjob;
}
virDomainBlockIoTuneInfoCopy(&info, &conf_info);
if (def) {
supportMaxOptions = virQEMUCapsGet(priv->qemuCaps,
QEMU_CAPS_DRIVE_IOTUNE_MAX);
@ -19459,13 +19463,15 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
goto endjob;
}
if (qemuDomainSetBlockIoTuneDefaults(&info, &conf_disk->blkdeviotune,
if (qemuDomainSetBlockIoTuneDefaults(&conf_info, &conf_disk->blkdeviotune,
set_fields) < 0)
goto endjob;
if (virDomainDiskSetBlockIOTune(conf_disk, &info) < 0)
if (virDomainDiskSetBlockIOTune(conf_disk, &conf_info) < 0)
goto endjob;
qemuDomainSetGroupBlockIoTune(persistentDef, &conf_info);
if (virDomainDefSave(persistentDef, driver->xmlopt,
cfg->configDir) < 0)
goto endjob;
@ -19477,6 +19483,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
cleanup:
VIR_FREE(info.group_name);
VIR_FREE(conf_info.group_name);
virDomainObjEndAPI(&vm);
if (eventNparams)
virTypedParamsFree(eventParams, eventNparams);