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Fix regressions BlockStats/Info APIs in QEMU driver

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The change 18c2a592064d69499f70428e498f4a3cb5161cda caused
some regressions in behaviour of virDomainBlockStats
and virDomainBlockInfo in the QEMU driver.

The virDomainBlockInfo API stopped working for inactive
guests if querying a block device.

The virDomainBlockStats API did not promptly report
an error if the guest was not running in some cases.

* src/qemu/qemu_driver.c: Fix inactive guest handling
  in BlockStats/Info APIs
This commit is contained in:
Daniel P. Berrange 2011-06-02 14:55:56 +01:00
parent 9a76e737fc
commit 2027e184c5
1 changed files with 16 additions and 12 deletions
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28
src/qemu/qemu_driver.c
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@ -5531,6 +5531,12 @@ qemudDomainBlockStats (virDomainPtr dom,
goto cleanup;
}
if (!virDomainObjIsActive(vm)) {
qemuReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto cleanup;
}
for (i = 0 ; i < vm->def->ndisks ; i++) {
if (STREQ(path, vm->def->disks[i]->dst)) {
disk = vm->def->disks[i];
@ -5994,7 +6000,8 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
highest allocated extent from QEMU */
if (disk->type == VIR_DOMAIN_DISK_TYPE_BLOCK &&
format != VIR_STORAGE_FILE_RAW &&
S_ISBLK(sb.st_mode)) {
S_ISBLK(sb.st_mode) &&
virDomainObjIsActive(vm)) {
qemuDomainObjPrivatePtr priv = vm->privateData;
if ((priv->jobActive == QEMU_JOB_MIGRATION_OUT)
@ -6017,19 +6024,16 @@ static int qemuDomainGetBlockInfo(virDomainPtr dom,
if (qemuDomainObjBeginJob(vm) < 0)
goto cleanup;
if (!virDomainObjIsActive(vm)) {
qemuReportError(VIR_ERR_OPERATION_INVALID,
"%s", _("domain is not running"));
goto endjob;
if (virDomainObjIsActive(vm)) {
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorGetBlockExtent(priv->mon,
disk->info.alias,
&info->allocation);
qemuDomainObjExitMonitor(vm);
} else {
ret = 0;
}
qemuDomainObjEnterMonitor(vm);
ret = qemuMonitorGetBlockExtent(priv->mon,
disk->info.alias,
&info->allocation);
qemuDomainObjExitMonitor(vm);
endjob:
if (qemuDomainObjEndJob(vm) == 0)
vm = NULL;
}