Re: [discuss] [patch 3/3] x86_64: Node local pda take 2 -- node local pda allocation

From: Andi Kleen
Date: Thu Dec 15 2005 - 04:41:39 EST


On Wed, Dec 14, 2005 at 06:37:48PM -0800, Ravikiran G Thirumalai wrote:
> Patch uses a static PDA array early at boot and reallocates processor PDA
> with node local memory when kmalloc is ready, just before pda_init.
> The boot_cpu_pda is needed since the cpu_pda is used even before pda_init for
> that cpu is called.
> (pda_init is called when APs are brought on at rest_init(). But
> setup_per_cpu_areas is called early in start_kernel and
> sched_init uses the per-cpu offset table early)
>

That is why I suggested to allocate it in smpboot.c in advance before
starting the AP. Can you please do that change?

-Andi

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