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Commit d6e2ca4c authored by Steven Rostedt's avatar Steven Rostedt
Browse files

tracing: convert irq trace points to new macros 



Impact: enhancement

Converted the two irq trace point macros. The entry macro copies
the name of the irq handler, thus it is better to simply use the
TRACE_FORMAT macro which uses the trace_printk.

The return of the handler does not need to record the name, thus
the faster C style handler is more approriate.

Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
parent 12b5fdb8

include/trace/irq_event_types.h

+24 −14
Original line number Diff line number Diff line
@@ -8,26 +8,36 @@ 
#undef TRACE_SYSTEM

#define TRACE_SYSTEM irq



TRACE_EVENT_FORMAT(irq_handler_entry,

/*

 * Tracepoint for entry of interrupt handler:

 */

TRACE_FORMAT(irq_handler_entry,

	TP_PROTO(int irq, struct irqaction *action),

	TP_ARGS(irq, action),

	TP_FMT("irq=%d handler=%s", irq, action->name),

	TRACE_STRUCT(

		TRACE_FIELD(int, irq, irq)

	),

	TP_RAW_FMT("irq %d")

	TP_FMT("irq=%d handler=%s", irq, action->name)

	);



TRACE_EVENT_FORMAT(irq_handler_exit,

/*

 * Tracepoint for return of an interrupt handler:

 */

TRACE_EVENT(irq_handler_exit,



	TP_PROTO(int irq, struct irqaction *action, int ret),



	TP_ARGS(irq, action, ret),

	TP_FMT("irq=%d handler=%s return=%s",

		irq, action->name, ret ? "handled" : "unhandled"),

	TRACE_STRUCT(

		TRACE_FIELD(int, irq, irq)

		TRACE_FIELD(int, ret, ret)



	TP_STRUCT__entry(

		__field(	int,	irq	)

		__field(	int,	ret	)

	),

	TP_RAW_FMT("irq %d ret %d")



	TP_printk("irq=%d return=%s",

		  __entry->irq, __entry->ret ? "handled" : "unhandled"),



	TP_fast_assign(

		__entry->irq	= irq;

		__entry->ret	= ret;

	)

);



#undef TRACE_SYSTEM