Re: [this_cpu_xx V4 11/20] RCU: Use this_cpu operations
From: Tejun Heo
Date: Sat Oct 03 2009 - 06:51:58 EST
cl@xxxxxxxxxxxxxxxxxxxx wrote:
> RCU does not do dynamic allocations but it increments per cpu variables
> a lot. These instructions results in a move to a register and then back
> to memory. This patch will make it use the inc/dec instructions on x86
> that do not need a register.
>
> Acked-by: Tejun Heo <tj@xxxxxxxxxx>
> Acked-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Patch titles slightly cleaned up and 0001-0011 are committed and
published to percpu#for-next.
Thanks.
--
tejun
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