[libvirt] [PATCHv2 39/62] qemu: driver: Prepare qemuDomainBlockResize for blockdev
Use the nodename to resize the device rather than the drive alias.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_driver.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index fb09278112..f745a0392a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -10945,6 +10945,7 @@ qemuDomainBlockResize(virDomainPtr dom,
qemuDomainObjPrivatePtr priv;
int ret = -1;
char *device = NULL;
+ const char *nodename = NULL;
virDomainDiskDefPtr disk = NULL;
virCheckFlags(VIR_DOMAIN_BLOCK_RESIZE_BYTES, -1);
@@ -10987,11 +10988,22 @@ qemuDomainBlockResize(virDomainPtr dom,
disk->src->format == VIR_STORAGE_FILE_QED)
size = VIR_ROUND_UP(size, 512);
- if (!(device = qemuAliasDiskDriveFromDisk(disk)))
- goto endjob;
+ if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV)) {
+ if (virStorageSourceIsEmpty(disk->src) || disk->src->readonly) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("can't resize empty or readonly disk
'%s'"),
+ disk->dst);
+ goto endjob;
+ }
+
+ nodename = disk->src->nodeformat;
+ } else {
+ if (!(device = qemuAliasDiskDriveFromDisk(disk)))
+ goto endjob;
+ }
qemuDomainObjEnterMonitor(driver, vm);
- if (qemuMonitorBlockResize(priv->mon, device, NULL, size) < 0) {
+ if (qemuMonitorBlockResize(priv->mon, device, nodename, size) < 0) {
ignore_value(qemuDomainObjExitMonitor(driver, vm));
goto endjob;
}
--
2.16.2