Re: [PATCH] Fix RCU race in access of nohz_cpu_mask

[Srivatsa Vaddagiri]

On Thu, Dec 08, 2005 at 10:31:06PM +0300, Oleg Nesterov wrote:
> I think cpu should call cpu_quiet() after adding itself to nohz mask
> to eliminate this race.

That would require rsp->lock to be taken on every idle CPU that wishes to go
tickless. IMO that may not be a good idea.

-- 


Thanks and Regards,
Srivatsa Vaddagiri,
Linux Technology Center,
IBM Software Labs,
Bangalore, INDIA - 560017
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