Re: [patch] improve SMP reschedule and idle routines

From: Nick Piggin <nickpiggin_at_yahoo.com.au>
Date: 2005-05-16 15:34:06
David S. Miller wrote:
> From: Nick Piggin <nickpiggin@yahoo.com.au>
> Date: Mon, 16 May 2005 15:19:00 +1000
> 
> 
>>The other obvious problem with sparc64 that I didn't tackle is
>>your secondary CPU bringup - those CPUs will be calling cpu_idle
>>with preempt enabled as was previously required, but now should
>>have preempt disabled (ie. arch/sparc64/kernel/trampoline.S:
>>call cpu_idle)
> 
> 
> And adding a preempt_disable() call to the end of
> arch/sparc64/kernel/smp.c:smp_callin() won't work
> because?
> 

No that looks like it should work. If that is the "right"
place to put it, then that's perfect. I'll resend the patch
to you privately.

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Received on Mon May 16 01:35:16 2005

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