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x86/irq: optimize nr_irqs
authorYinghai Lu <yinghai@kernel.org>
Mon, 9 Feb 2009 00:18:03 +0000 (16:18 -0800)
committerIngo Molnar <mingo@elte.hu>
Mon, 9 Feb 2009 08:21:27 +0000 (09:21 +0100)
Impact: make nr_irqs depend more on cards used in a system

depend on nr_irq_gsi more, and have a ratio for MSI.

v2: make nr_irqs less than NR_VECTORS * nr_cpu_ids
    aka if only one cpu, we only can support nr_irqs = NR_VECTORS

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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