[libvirt] [PATCH 2/3] Convert the virCgroupKill* APIs to report errors

[Eric Blake]

On 07/19/2013 08:42 AM, Daniel P. Berrange wrote:
> On Thu, Jul 18, 2013 at 09:36:59PM -0600, Eric Blake wrote:
>> On 07/18/2013 09:00 AM, Daniel P. Berrange wrote:
>>> From: "Daniel P. Berrange" <berrange at redhat.com>
>>>
>>> Instead of returning errno values, change the virCgroupKill*
>>> APIs to fully report errors.
>>>
>>> Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
>>> ---

>>> +        virCgroupKillPainfully(priv->cgroup);
>>
>> ...but now don't report any failure at all.  Is this right?  Shouldn't
>> this be:
>>
>> if (virCgroupKillPainfully(priv->cgroup) < 0)
>>     goto cleanup;
>>
>> or even still distinguish the error message for processes that couldn't
>> be killed (but maybe hoisting it into vircgroup.c)?
> 
> I'll add in
> 
> -        virCgroupKillPainfully(priv->cgroup);
> +        rc = virCgroupKillPainfully(priv->cgroup);
> +        if (rc < 0)
> +            return -1;
> +        if (rc > 0) {
> +            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> +                           _("Some processes refused to die"));
> +            return -1;
> +        }

Works for me.  ACK as revised.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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