Re: [Patch Part3 v4 37/38] x86, irq: Introduce mechanism to support different vector allocation policies

[Thomas Gleixner]

On Tue, 25 Nov 2014, Jiang Liu wrote:
> Introduce mechanism to support different vector allocation policies,
> so platform or user may choose the best suitable CPU vector allocation

I've postponed this and the next patch for 3.20.

> policy. Currently two policies are supported:
> 1) allocate CPU vector from cpumask_of_node(dev_to_node(dev))
> 2) allocate from apic->target_cpus(), this is the default policy
> 
> Platform driver may call set_vector_alloc_policy() to choose the
> preferred policies.
> 
> This mechanism may be used to support NumaConnect systems to allocate
> CPU vectors from device local node.

So these policies are system wide and need to be selected at boot time?

Thanks,

	tglx

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