trace_softirq_entry man page on Scientific

trace_softirq_entry man page on Scientific

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TRACE_SOFTIRQ_ENTRY(9)		      IRQ		TRACE_SOFTIRQ_ENTRY(9)

NAME
       trace_softirq_entry - called immediately before the softirq handler

SYNOPSIS
       void trace_softirq_entry(struct softirq_action * h,
				struct softirq_action * vec);

ARGUMENTS
       h
	   pointer to struct softirq_action

       vec
	   pointer to first struct softirq_action in softirq_vec array

DESCRIPTION
       The h parameter, contains a pointer to the struct softirq_action which
       has a pointer to the action handler that is called. By subtracting the
       vec pointer from the h pointer, we can determine the softirq number.
       Also, when used in combination with the softirq_exit tracepoint we can
       determine the softirq latency.

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

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

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