Re: [PATCH v2] CPU hotplug, freezer: Fix bugs in CPU hotplug callpath

[Srivatsa S. Bhat]

On 10/10/2011 04:18 PM, Peter Zijlstra wrote:
> On Sat, 2011-10-08 at 02:26 +0530, Srivatsa S. Bhat wrote:
>>
>> So, we should mutually exclude cpu hotplugging and freezing/thawing to
>> ensure that during the entire duration that the callbacks for the notified
>> event are running, the state introduced by that event holds good. 
> 
> Yes we should, but I'd rather see that done on a more fundamental level,
> and not frob yet another mutex in the already complex hotplug system.
> 

Sure, thank you for the feedback. I have now come up with another version
that doesn't introduce any new mutex. I'll post it out in a while.

-- 
Regards,
Srivatsa S. Bhat  <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>
Linux Technology Center,
IBM India Systems and Technology Lab
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