[libvirt] [PATCH] qemu: fix cannot get a hot-unplug disk blockdevio settings
When we try to get a hot-unplug disk blkdevio settings via
qemuDomainGetBlockIoTune, libvirt will output a cannot find
device error.Move the check after confirm vm is running.
Signed-off-by: Luyao Huang <lhuang(a)redhat.com>
---
src/qemu/qemu_driver.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 411179d..c717c76 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -17031,12 +17031,11 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
goto endjob;
}
- device = qemuDiskPathToAlias(vm, disk, NULL);
- if (!device) {
- goto endjob;
- }
-
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
+ device = qemuDiskPathToAlias(vm, disk, NULL);
+ if (!device) {
+ goto endjob;
+ }
qemuDomainObjEnterMonitor(driver, vm);
ret = qemuMonitorGetBlockIoThrottle(priv->mon, device, &reply,
supportMaxOptions);
qemuDomainObjExitMonitor(driver, vm);
--
1.8.3.1