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Re: [libvirt] [PATCH for v1.0.5-maint 1/2] qemu: Resolve issue with GetScheduler APIs for non running domain

On 06/20/2013 04:18 AM, Ján Tomko wrote:
> On 06/19/2013 10:44 PM, John Ferlan wrote:
>> As a consequence of the cgroup layout changes from commit '632f78ca', the
>> qemuDomainGetSchedulerParameters[Flags]()' and qemuGetSchedulerType() APIs
>> failed to return data for a non running domain.  This can be seen through
>> a 'virsh schedinfo <domain>' command which returns:
>> Scheduler      : Unknown
>> error: Requested operation is not valid: cgroup CPU controller is not mounted
>> Prior to that change a non running domain would return:
>> Scheduler      : posix
>> cpu_shares     : 0
>> vcpu_period    : 0
>> vcpu_quota     : 0
>> emulator_period: 0
>> emulator_quota : 0
>> This patch will restore the capability to return configuration only data
>> for a non running domain regardless of whether cgroups are available.
>> NOTE: Needed to change the VIR_STRDUP(ret, "posix"); to ret = strdup("posix");
> VIR_STRDUP also reports the OOM error, so the strdup equivalent would be:
> if (!(ret = strdup("posix")))
>     virReportOOMError();
> Jan

Ah yes, how quickly we forget.

I added/squashed in a check for the OOM and pushed along with the git
commit id from whence I cherry picked.


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