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Subject: Re: [PATCH RFC tip/core/rcu 13/20] rcu: increase
 synchronize_sched_expedited() batching
From: Peter Zijlstra <peterz@infradead.org>
To: Tejun Heo <tj@kernel.org>
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Date: Mon, 20 Dec 2010 11:31:20 +0100
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On Sun, 2010-12-19 at 10:43 +0100, Tejun Heo wrote:
> 
> I see, then would something like the following work?
> 
>  (int)((unsigned)(a) - (unsigned)(b)) < 0 

Note that there is lots of kernel code that does the above and
variations thereof and expects it to work.