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List: libvir-list
Subject: [libvirt] [PATCH 4/5] qemu: hotplug: Disallow media change while blockjob is active
From: Peter Krempa <pkrempa () redhat ! com>
Date: 2019-03-29 13:53:56
Message-ID: 50d8aa7f012f8c6071c922575b7e662f64794627.1553867580.git.pkrempa () redhat ! com
[Download RAW message or body]
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>
---
src/qemu/qemu_hotplug.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 150da34b4a..34249bd030 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -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)
--
2.20.1
--
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