Re: [PATCH v3 5/5] cpusets, suspend: Save and restore cpusetsduring suspend/resume

[Peter Zijlstra]

On Wed, 2012-05-16 at 03:46 +0530, Srivatsa S. Bhat wrote:
> 
> However, the cpu_active_mask was introduced to handle situations where hotplug
> transition is still in progress, and the scheduler needs to take appropriate
> decisions even with some of its data-structures in an inconsistent/stale state.
> But once the hotplug operation is completed, the scheduler doesn't need to
> depend on cpu_active_mask.

> (And on those lines, making the scheduler work correctly even in such cases
> is only a good-to-have as a robustness measure and not a "bugfix".) 

I think those 2(?) cases you found not covered by active mask could
actually happen during a hotplug. So far they simply haven't.
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