Messages in this thread | | | Date | Tue, 22 Dec 2009 09:56:25 -0600 (CST) | From | Christoph Lameter <> | Subject | Re: [this_cpu_xx V8 09/16] Allow arch to provide inc/dec functionality for each size separately |
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On Mon, 21 Dec 2009, Tejun Heo wrote:
> On 12/19/2009 07:26 AM, Christoph Lameter wrote: > > Current this_cpu ops only allow an arch to specify add RMW operations or inc > > and dec for all sizes. Some arches can do more efficient inc and dec > > operations. Allow size specific override of fallback functions like with > > the other operations. > > Wouldn't it be better to use __builtin_constant_p() and switching in > arch add/dec macros? It just seems a bit extreme to define all those
Yes that could be done but I am on vacation till next year ;-)...
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