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qemu: hotplug: Disallow media change while blockjob is active

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Until the block job completes we can't change the disk chain. Removal
would fail as the block job still has reference to the chain.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2019-03-28 12:23:43 +01:00
parent 0beac488e0
commit b3736febca
1 changed files with 7 additions and 0 deletions
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7
src/qemu/qemu_hotplug.c
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@ -852,10 +852,17 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
VIR_AUTOUNREF(virQEMUDriverConfigPtr) cfg = virQEMUDriverGetConfig(driver);
qemuDomainObjPrivatePtr priv = vm->privateData;
virStorageSourcePtr oldsrc = disk->src;
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
bool sharedAdded = false;
int ret = -1;
int rc;
if (diskPriv->blockjob && qemuBlockJobIsRunning(diskPriv->blockjob)) {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
_("can't change media while a block job is running on the device"));
return -1;
}
disk->src = newsrc;
if (virDomainDiskTranslateSourcePool(disk) < 0)