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qemu: qemuDomainSetVcpusAgent: re-check agent before calling it the again

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With a very unfortunate timing, the agent might vanish before we do the
second call while the locks were down. Re-check that the agent is
available before attempting it again.
This commit is contained in:
Peter Krempa 2015-10-27 07:29:53 +01:00
parent da6620ffac
commit 2642a36db5
1 changed files with 3 additions and 0 deletions
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3
src/qemu/qemu_driver.c
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@ -4881,6 +4881,9 @@ qemuDomainSetVcpusAgent(virDomainObjPtr vm,
if (qemuAgentUpdateCPUInfo(nvcpus, cpuinfo, ncpuinfo) < 0) if (qemuAgentUpdateCPUInfo(nvcpus, cpuinfo, ncpuinfo) < 0)
goto cleanup; goto cleanup;
if (!qemuDomainAgentAvailable(vm, true))
goto cleanup;
qemuDomainObjEnterAgent(vm); qemuDomainObjEnterAgent(vm);
ret = qemuAgentSetVCPUs(qemuDomainGetAgent(vm), cpuinfo, ncpuinfo); ret = qemuAgentSetVCPUs(qemuDomainGetAgent(vm), cpuinfo, ncpuinfo);
qemuDomainObjExitAgent(vm); qemuDomainObjExitAgent(vm);