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qemu: Separate balloon code from qemuProcessStart

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qemuProcessStart is so big that any nontrivial code should be moved to
dedicated functions to make the code easier to read and maintain.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Jiri Denemark 2015-11-02 11:00:49 +01:00
parent f78d070d68
commit 65e6548e48
1 changed files with 35 additions and 21 deletions
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54
src/qemu/qemu_process.c
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@ -4415,6 +4415,39 @@ qemuProcessSetupRawIO(virQEMUDriverPtr driver,
}
static int
qemuProcessSetupBalloon(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainAsyncJob asyncJob)
{
unsigned long long balloon = vm->def->mem.cur_balloon;
qemuDomainObjPrivatePtr priv = vm->privateData;
int period;
int ret = -1;
if (!vm->def->memballoon ||
vm->def->memballoon->model == VIR_DOMAIN_MEMBALLOON_MODEL_NONE)
return 0;
period = vm->def->memballoon->period;
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
goto cleanup;
if (period)
qemuMonitorSetMemoryStatsPeriod(priv->mon, period);
if (qemuMonitorSetBalloon(priv->mon, balloon) < 0)
goto cleanup;
ret = 0;
cleanup:
if (qemuDomainObjExitMonitor(driver, vm) < 0)
ret = -1;
return ret;
}
int qemuProcessStart(virConnectPtr conn,
virQEMUDriverPtr driver,
virDomainObjPtr vm,
@ -4961,24 +4994,9 @@ int qemuProcessStart(virConnectPtr conn,
goto error;
VIR_DEBUG("Setting initial memory amount");
if (vm->def->memballoon &&
vm->def->memballoon->model != VIR_DOMAIN_MEMBALLOON_MODEL_NONE) {
unsigned long long balloon = vm->def->mem.cur_balloon;
int period = vm->def->memballoon->period;
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
if (qemuProcessSetupBalloon(driver, vm, asyncJob) < 0)
goto error;
if (period)
qemuMonitorSetMemoryStatsPeriod(priv->mon, period);
if (qemuMonitorSetBalloon(priv->mon, balloon) < 0)
goto exit_monitor;
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto error;
}
/* Since CPUs were not started yet, the balloon could not return the memory
* to the host and thus cur_balloon needs to be updated so that GetXMLdesc
* and friends return the correct size in case they can't grab the job */
@ -5053,10 +5071,6 @@ int qemuProcessStart(virConnectPtr conn,
qemuMonitorSetDomainLog(priv->mon, -1);
qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_FAILED, stop_flags);
goto cleanup;
exit_monitor:
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto error;
}