On 09/24/2012 03:42 PM, Peter Zijlstra wrote:
> On Mon, 2012-09-24 at 15:27 +0530, Srivatsa S. Bhat wrote:
>> On 09/24/2012 03:08 PM, Peter Zijlstra wrote:  
>>>> +       hotcpu_notifier(sched_domains_numa_masks_update, 
>>>> CPU_PRI_SCHED_ACTIVE);
>>>>         hotcpu_notifier(cpuset_cpu_active, CPU_PRI_CPUSET_ACTIVE);
>>>>         hotcpu_notifier(cpuset_cpu_inactive, CPU_PRI_CPUSET_INACTIVE);
>>>
>>> OK, so you really want your notifier to run before cpuset_cpu_active
>>> because otherwise you get that crash, yet you fail with the whole order
>>> thing.. You should not _ever_ rely on registration order.
>>>
>>
>> IMHO he isn't relying on registration order.. He uses the 
>> CPU_PRI_SCHED_ACTIVE
>> priority to ensure that the ordering of callbacks is right, isn't it?
> 
> Oh argh indeed. I can't read :/
> 

;-)
 
Regards,
Srivatsa S. Bhat

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