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Date: Thu, 11 Nov 2010 14:01:36 +0200 From: Pekka Enberg <penberg@...nel.org> To: Tejun Heo <tj@...nel.org> Cc: linux-kernel@...r.kernel.org, mingo@...hat.com, tglx@...utronix.de, hpa@...or.com, x86@...nel.org, eric.dumazet@...il.com, yinghai@...nel.org Subject: Re: [PATCH 6/9] x86: Unify cpu/apicid <-> NUMA node mapping between 32 and 64bit On Thu, Nov 11, 2010 at 1:02 PM, Tejun Heo <tj@...nel.org> wrote: > The mapping between cpu/apicid and node is done via apicid_to_node[] > on 64bit and apicid_2_node[] + apic->numa_cpu_node() on 32bit. This > difference makes it difficult to further unify 32 and 64bit NUMA > hanlding. > > This patch unifies it by replacing both apicid_to_node[] and > apicid_2_node[] with __apicid_to_node[] array, which is accessed by > two accessors - set_apicid_to_node() and numa_cpu_node(). On 64bit, > numa_cpu_node() always consults __apicid_to_node[] directly while > 32bit goes through apic->numa_cpu_node() method to allow apic > implementation to override it. > > There are several places where using numa_cpu_node() is awkward and > the override doesn't matter. In those places, __apicid_to_node[] are > used directly. > > Signed-off-by: Tejun Heo <tj@...nel.org> Acked-by: Pekka Enberg <penberg@...nel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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