Re: [PATCH v2] x86/apic: Use smaller array for __apicid_to_node[] mapping

From	Thomas Gleixner <tglx@linutronix.de>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2] x86/apic: Use smaller array for __apicid_to_node[] mapping
Date	2015-10-09 22:50 +0200
Message-ID	<qhMM3-4K6-17@gated-at.bofh.it> (permalink)
References	<qfpJU-3Pm-11@gated-at.bofh.it> <qg5J8-563-1@gated-at.bofh.it> <qhGGD-4wR-35@gated-at.bofh.it> <qhHCG-5Sb-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Fri, 9 Oct 2015, Jiang Liu wrote:
> On 2015/10/9 22:15, Thomas Gleixner wrote:
> > On Mon, 5 Oct 2015, Daniel J Blueman wrote:
> >> +struct apicid_to_node {
> >> +	int apicid;
> >> +	s16 node;
> >> +};
> > 
> > Instead of having this array, why don't you use a radix tree and be
> > done with it?
> Hi Thomas,
> 	It's in early booting stage and memory allocator isn't ready
> yet.

Why do we need that information so early?

Thanks,

	tglx


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Re: [PATCH v2] x86/apic: Use smaller array for __apicid_to_node[]  mapping Thomas Gleixner <tglx@linutronix.de> - 2015-10-09 16:20 +0200
  Re: [PATCH v2] x86/apic: Use smaller array for __apicid_to_node[]  mapping Jiang Liu <jiang.liu@linux.intel.com> - 2015-10-09 17:20 +0200
    Re: [PATCH v2] x86/apic: Use smaller array for __apicid_to_node[]  mapping Thomas Gleixner <tglx@linutronix.de> - 2015-10-09 22:50 +0200

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