trace_irq_handler_entry man page on Scientific

trace_irq_handler_entry man page on Scientific

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TRACE_IRQ_HANDLER_EN(9)		      IRQ	       TRACE_IRQ_HANDLER_EN(9)

NAME
       trace_irq_handler_entry - called immediately before the irq action
       handler

SYNOPSIS
       void trace_irq_handler_entry(int irq, struct irqaction * action);

ARGUMENTS
       irq
	   irq number

       action
	   pointer to struct irqaction

DESCRIPTION
       The struct irqaction pointed to by action contains various information
       about the handler, including the device name, action->name, and the
       device id, action->dev_id. When used in conjunction with the
       irq_handler_exit tracepoint, we can figure out irq handler latencies.

AUTHOR
       Jason Baron <jbaron@redhat.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       TRACE_IRQ_HANDLER_EN(9)

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