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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: Steven Rostedt <srostedt@redhat.com>
This commit is contained in:
Steven Rostedt 2009-03-09 23:23:30 -04:00
parent 12b5fdb8bb
commit d6e2ca4c05
1 changed files with 24 additions and 14 deletions
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38
include/trace/irq_event_types.h
View File

@ -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