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qemu_cgroup.c: skip absent PCI devices in qemuTeardownHostdevCgroup()

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There is no need to bother with cgroup tearing down for absent
PCI devices, given that their entries in the sysfs are already
gone.

Reviewed-by: Laine Stump <laine@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Daniel Henrique Barboza 2021-01-04 09:54:39 -03:00
parent a8017c6882
commit 67357e5094
1 changed files with 10 additions and 0 deletions
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10
src/qemu/qemu_cgroup.c
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@ -467,6 +467,16 @@ qemuTeardownHostdevCgroup(virDomainObjPtr vm,
if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_DEVICES))
return 0;
/* Skip tearing down Cgroup for hostdevs that represents absent
* PCI devices, e.g. SR-IOV virtual functions that were removed from
* the host while the domain was still running. */
if (virHostdevIsPCIDevice(dev)) {
const virDomainHostdevSubsysPCI *pcisrc = &dev->source.subsys.u.pci;
if (!virPCIDeviceExists(&pcisrc->addr))
return 0;
}
if (qemuDomainGetHostdevPath(dev, &path, NULL) < 0)
return -1;