Re: [PATCH 0/3] Fix sysrq caused USB performance regressions andleak

From: Anders Larsen
Date: Fri Jul 10 2009 - 05:08:27 EST


On 2009-07-10 02:01:37, Alan Cox wrote:
> > shouldn't it be
> > + if (likely(!port->console || !port->sysrq))
> > respectively
> > + if (unlikely(port->console && port->sysrq)) {
> >
> > at least for clarity?
>
> It'll get predicted by the CPU just fine I suspect.

I thought likely() / unlikely() were for the _compiler_ to arrange the
blocks more efficiently?

Anders

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