Re: [RFC PATCH 09/10] POWERPC: smp: remove call toipi_call_lock()/ipi_call_unlock()

[Peter Zijlstra]

On Sat, 2012-06-16 at 09:32 -0700, Paul E. McKenney wrote:
> However, there is an effort to get rid of stop_machine() from the
> CPU-down path...  So something else will be needed. 

Elsewhere in this thread I mentioned we could do a synchronize_sched().
I think that covers most of what stop-machine is doing these days.
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