forked from Minki/linux
e25b091bed
To simplify debugging which process touches a watchdog and when, add tracing events for .start(), .set_timeout(), .ping() and .stop(). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221008174602.3972859-1-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM watchdog
|
|
|
|
#if !defined(_TRACE_WATCHDOG_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_WATCHDOG_H
|
|
|
|
#include <linux/watchdog.h>
|
|
#include <linux/tracepoint.h>
|
|
|
|
DECLARE_EVENT_CLASS(watchdog_template,
|
|
|
|
TP_PROTO(struct watchdog_device *wdd, int err),
|
|
|
|
TP_ARGS(wdd, err),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, id)
|
|
__field(int, err)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->id = wdd->id;
|
|
__entry->err = err;
|
|
),
|
|
|
|
TP_printk("watchdog%d err=%d", __entry->id, __entry->err)
|
|
);
|
|
|
|
DEFINE_EVENT(watchdog_template, watchdog_start,
|
|
TP_PROTO(struct watchdog_device *wdd, int err),
|
|
TP_ARGS(wdd, err));
|
|
|
|
DEFINE_EVENT(watchdog_template, watchdog_ping,
|
|
TP_PROTO(struct watchdog_device *wdd, int err),
|
|
TP_ARGS(wdd, err));
|
|
|
|
DEFINE_EVENT(watchdog_template, watchdog_stop,
|
|
TP_PROTO(struct watchdog_device *wdd, int err),
|
|
TP_ARGS(wdd, err));
|
|
|
|
TRACE_EVENT(watchdog_set_timeout,
|
|
|
|
TP_PROTO(struct watchdog_device *wdd, unsigned int timeout, int err),
|
|
|
|
TP_ARGS(wdd, timeout, err),
|
|
|
|
TP_STRUCT__entry(
|
|
__field(int, id)
|
|
__field(unsigned int, timeout)
|
|
__field(int, err)
|
|
),
|
|
|
|
TP_fast_assign(
|
|
__entry->id = wdd->id;
|
|
__entry->timeout = timeout;
|
|
__entry->err = err;
|
|
),
|
|
|
|
TP_printk("watchdog%d timeout=%u err=%d", __entry->id, __entry->timeout, __entry->err)
|
|
);
|
|
|
|
#endif /* !defined(_TRACE_WATCHDOG_H) || defined(TRACE_HEADER_MULTI_READ) */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|