Re: [thiscpuops upgrade 02/10] vmstat: Optimize zone counter modificationsthrough the use of this cpu operations

[Tejun Heo]

On 11/24/2010 12:51 AM, Christoph Lameter wrote:
> this cpu operations can be used to slightly optimize the function. The
> changes will avoid some address calculations and replace them with the
> use of the percpu segment register.
> 
> If one would have this_cpu_inc_return and this_cpu_dec_return then it
> would be possible to optimize inc_zone_page_state and dec_zone_page_state even
> more.
> 
> Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>

Looks correct to me but it would be nice to run this through sparse.

Thanks.

-- 
tejun
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