Re: [this_cpu_xx 06/11] Eliminate get/put_cpu

From: Dan Williams
Date: Fri Jun 05 2009 - 15:34:48 EST


[ added Maciej to the cc ]

On Fri, Jun 5, 2009 at 12:18 PM, <cl@xxxxxxxxxxxxxxxxxxxx> wrote:
> There are cases where we can use this_cpu_ptr and as the result
> of using this_cpu_ptr() we no longer need to determine the
> current executing cpu.
>
> In those places no get/put_cpu combination is needed anymore.
> The local cpu variable can be eliminated.
>
> Preemption still needs to be disabled and enabled since the
> modifications of the per cpu variables is not atomic. There may
> be multiple per cpu variables modified and those must all
> be from the same processor.
>
> cc: Dan Williams <dan.j.williams@xxxxxxxxx>

Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx>
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