Re: [PATCH] x86, acpi: Make acpi_processor_ffh_cstate_probe() usea work item instead of work_on_cpu()

[Tejun Heo]

On Thu, Aug 23, 2012 at 05:26:43PM -0700, Tejun Heo wrote:
> Workqueue is guaranteed to be available on the target CPU by the time
> acpi_processor_ffh_cstate_probe() is invoked for it.  There's no
> reason to use costly work_on_cpu() which involves creating and tearing
> down a full kthread on each invocation to execute the probing function
> on the target CPU.  Use a work item instead.
> 
> Tested and works as expected.
> 
> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>

Please forget about this patch (doesn't seem like it has been applied
yet).  Planning on reimplementing work_on_cpu() using system_wq
instead.

Thanks.

-- 
tejun
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