On 10/01/2014 01:55 AM, John Ferlan wrote:
On 09/22/2014 06:41 AM, Erik Skultety wrote:
Up until now, we set memballoon period in monitor successfully, however
we did not update domain definition structure, thus dumpxml was omitting
period attribute in memballoon element
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1140960
---
src/qemu/qemu_driver.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ede8880..d73288a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -2460,9 +2460,15 @@ static int qemuDomainSetMemoryStatsPeriod(virDomainPtr dom, int period,
qemuDomainObjEnterMonitor(driver, vm);
r = qemuMonitorSetMemoryStatsPeriod(priv->mon, period);
qemuDomainObjExitMonitor(driver, vm);
- if (r < 0)
+ if (r < 0) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("unable to set balloon driver collection period"));
+ goto endjob;
+ }
I'm trying to remember if there was a reason for not jumping to error.
It probably has to do with "at some point in time" during development
this setting would/could be done through calls via qemu_process.c and
causing a failure through that path wasn't good. Now since this only
accessible via a virsh command - I agree going to endjob is right...
If you care to walk the history - start here:
http://www.redhat.com/archives/libvir-list/2013-July/msg00770.html
I had a little look at the history you pointed out. From what I've
found, the sub-element 'period' was introduced along with qemu
driver-specific API and libvirt domain API in 10-part v3 patch series
(http://www.redhat.com/archives/libvir-list/2013-July/msg00774.html). I
detached HEAD before these commits were pushed and I didn't find any
trace about memballoon period setting. All the APIs and necessary
structures/members were introduced by the patch series mentioned above,
is that correct? :) (in that case I guess it's fine to add the jump to
'endjob' label)
ACK (to what's here)
John
+
+ vm->def->memballoon->period = period;
+ if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
+ goto endjob;
}
if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
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Erik
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