Re: [RFC][PATCH] CPUSets: Move most calls torebuild_sched_domains() to the workqueue

[Peter Zijlstra]

On Thu, 2008-06-26 at 11:49 -0700, Max Krasnyansky wrote:

> > Does that mean that you can't ever call get_online_cpus() from a
> > workqueue thread?
> 
> In general it should be ok (no different from user-space task calling 
> it). But there is still circular dependency because we're calling into
> domain partitioning code.
> Below is more detailed lockdep report with your patch applied on top of 
> -rc8.
> Looks like this might be a good time to rethink overall locking in there.

Gautham has been working on some of this recently. Perhaps he can share
his patch-stack again.



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