irq.h: remove padding from irq_desc on 64bits
Impact: reduce struct irq_desc size struct irq_desc: reorder to remove padding on 64bits shrinks irq_desc to 128 bytes which saves data space & cache lines On a generic x86_64/SMP build this reduces the reported data size by 64k. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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@ -142,8 +142,8 @@ struct irq_chip {
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* @depth: disable-depth, for nested irq_disable() calls
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* @wake_depth: enable depth, for multiple set_irq_wake() callers
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* @irq_count: stats field to detect stalled irqs
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* @irqs_unhandled: stats field for spurious unhandled interrupts
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* @last_unhandled: aging timer for unhandled count
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* @irqs_unhandled: stats field for spurious unhandled interrupts
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* @lock: locking for SMP
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* @affinity: IRQ affinity on SMP
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* @cpu: cpu index useful for balancing
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@ -165,8 +165,8 @@ struct irq_desc {
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unsigned int depth; /* nested irq disables */
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unsigned int wake_depth; /* nested wake enables */
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unsigned int irq_count; /* For detecting broken IRQs */
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unsigned int irqs_unhandled;
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unsigned long last_unhandled; /* Aging timer for unhandled count */
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unsigned int irqs_unhandled;
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spinlock_t lock;
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#ifdef CONFIG_SMP
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cpumask_t affinity;
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