Re: [RFC PATCH 3/9] irq_work: Force raised irq work to run on irq work interrupt

From: Peter Zijlstra
Date: Thu Sep 04 2014 - 11:40:28 EST


On Thu, Sep 04, 2014 at 03:33:40PM +0200, Frederic Weisbecker wrote:
> > Why not something like the below; then it becomes a compile time matter.
>
> Problem is that some archs only have that information at runtime.
> See x86 for example which tests cpu_has_apic.

So the other archs can still benefit, no? Also, on x86 cpu features can
be used with asm_goto/jump_labels, your approach wrecks that too by
copying it into some static variable, see static_cpu_has().
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