Re: [patch]x86: spread tlb flush vector between nodes

From: Andi Kleen
Date: Tue Oct 19 2010 - 09:34:36 EST


>
> +static int tlb_vector_offset[NR_CPUS] __read_mostly;

Never use NR_CPUS. Always use per cpu data.

Otherwise you waste a lot of space on a CONFIG_MAX_SMP
kernel running on a smaller box.

-Andi
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