__IRQ_MASK         51 include/linux/hardirq.h #define PREEMPT_MASK	(__IRQ_MASK(PREEMPT_BITS) << PREEMPT_SHIFT)
__IRQ_MASK         52 include/linux/hardirq.h #define SOFTIRQ_MASK	(__IRQ_MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT)
__IRQ_MASK         53 include/linux/hardirq.h #define HARDIRQ_MASK	(__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)