x86/irq: optimize nr_irqs

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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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Yinghai Lu 2009-02-08 16:18:03 -08:00 • committed by Ingo Molnar

parent 8f9ca475c9

commit f1ee5548a6

1 changed files with 11 additions and 5 deletions

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arch/x86/kernel/io_apic.c

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