From 39842323ceb368d2ea36ab7696aedbe296e13b61 Mon Sep 17 00:00:00 2001
From: Jason Baron <jbaron@redhat.com>
Date: Thu, 12 Mar 2009 14:36:03 -0400
Subject: tracing: tracepoints for softirq entry/exit - tracepoints
Introduce softirq entry/exit tracepoints. These are useful for
augmenting existing tracers, and to figure out softirq frequencies and
timings.
[
s/irq_softirq_/softirq_/ for trace point names and
Fixed printf format in TRACE_FORMAT macro
- Steven Rostedt
]
LKML-Reference: <20090312183603.GC3352@redhat.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
include/trace/irq_event_types.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'include/trace')
diff --git a/include/trace/irq_event_types.h b/include/trace/irq_event_types.h
index 214bb928fe9e..85964ebd47ec 100644
--- a/include/trace/irq_event_types.h
+++ b/include/trace/irq_event_types.h
@@ -40,4 +40,16 @@ TRACE_EVENT(irq_handler_exit,
__entry->irq, __entry->ret ? "handled" : "unhandled")
);
+TRACE_FORMAT(softirq_entry,
+ TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
+ TP_ARGS(h, vec),
+ TP_FMT("softirq=%d action=%s", (int)(h - vec), softirq_to_name[h-vec])
+ );
+
+TRACE_FORMAT(softirq_exit,
+ TP_PROTO(struct softirq_action *h, struct softirq_action *vec),
+ TP_ARGS(h, vec),
+ TP_FMT("softirq=%d action=%s", (int)(h - vec), softirq_to_name[h-vec])
+ );
+
#undef TRACE_SYSTEM
--
cgit v1.2.3