On 10/29/2010 04:34 AM, Daniel P. Berrange wrote:
> On Fri, Oct 29, 2010 at 05:32:16PM +0800, Lai Jiangshan wrote:
>> When wen mount any cgroup without "-o devices", we will fail to start vms:
>>
>> # virsh start vm1
>> error: Failed to start domain vm1
>> error: Unable to deny all devices for vm1: No such file or directory
>>
>> When wen mount any cgroup without "-o cpu", we will fail to get schedinfo:
>> # virsh schedinfo vm1
>> Scheduler : posix
>> error: unable to get cpu shares tunable: No such file or directory
>>
>> We should only use the cgroup controllers which are mounted on host.
>> So I add virCgroupMounted() for qemuCgroupControllerActive()
>>
>> +bool virCgroupMounted(virCgroupPtr cgroup, int controller)
>> +{
>> + return !!cgroup->controllers[controller].mountPoint;
>> +}
>
> IMHO its slightly clearer to read with mountPoint != NULL, rather than !!
>
>
> ACK aside from that minor point.Pushed, after rebasing onto 0.8.5, fixing that nit, and also fixing 'make syntax-check' failure (that line also had a TAB). -- Eric Blake [email protected] +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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