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Subject[PATCH 1/5] debugfs - Fix mount directory of debugfs by default in events.txt
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Date


>From 99e8ab48d783e619329c31e8f91e4384729a2e8b Mon Sep 17 00:00:00 2001
From: GeunSik,Lim <leemgs1@gmail.com>
Date: Mon, 7 Sep 2009 20:34:19 +0900
Subject: [PATCH 1/5] Fix mount directory of debugfs by default in events.txt

We need common default directory of denbugfs for consistency.
(debugfs's default directory is /sys/kernel/debug/ by debugfs.)

Signed-Off-By:GeunSik Lim <geunsik.lim@samsung.com>
---
Documentation/trace/events.txt | 24 ++++++++++++------------
1 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/Documentation/trace/events.txt b/Documentation/trace/events.txt
index f157d75..3b72823 100644
--- a/Documentation/trace/events.txt
+++ b/Documentation/trace/events.txt
@@ -22,12 +22,12 @@ tracing information should be printed.
---------------------------------

The events which are available for tracing can be found in the file
-/debug/tracing/available_events.
+/sys/kernel/debug/tracing/available_events.

To enable a particular event, such as 'sched_wakeup', simply echo it
-to /debug/tracing/set_event. For example:
+to /sys/kernel/debug/tracing/set_event. For example:

- # echo sched_wakeup >> /debug/tracing/set_event
+ # echo sched_wakeup >> /sys/kernel/debug/tracing/set_event

[ Note: '>>' is necessary, otherwise it will firstly disable
all the events. ]
@@ -35,15 +35,15 @@ to /debug/tracing/set_event. For example:
To disable an event, echo the event name to the set_event file prefixed
with an exclamation point:

- # echo '!sched_wakeup' >> /debug/tracing/set_event
+ # echo '!sched_wakeup' >> /sys/kernel/debug/tracing/set_event

To disable all events, echo an empty line to the set_event file:

- # echo > /debug/tracing/set_event
+ # echo > /sys/kernel/debug/tracing/set_event

To enable all events, echo '*:*' or '*:' to the set_event file:

- # echo *:* > /debug/tracing/set_event
+ # echo *:* > /sys/kernel/debug/tracing/set_event

The events are organized into subsystems, such as ext4, irq, sched,
etc., and a full event name looks like this: <subsystem>:<event>. The
@@ -52,29 +52,29 @@ file. All of the events in a subsystem can be specified via the syntax
"<subsystem>:*"; for example, to enable all irq events, you can use the
command:

- # echo 'irq:*' > /debug/tracing/set_event
+ # echo 'irq:*' > /sys/kernel/debug/tracing/set_event

2.2 Via the 'enable' toggle
---------------------------

-The events available are also listed in /debug/tracing/events/ hierarchy
+The events available are also listed in /sys/kernel/debug/tracing/events/ hierarchy
of directories.

To enable event 'sched_wakeup':

- # echo 1 > /debug/tracing/events/sched/sched_wakeup/enable
+ # echo 1 > /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable

To disable it:

- # echo 0 > /debug/tracing/events/sched/sched_wakeup/enable
+ # echo 0 > /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable

To enable all events in sched subsystem:

- # echo 1 > /debug/tracing/events/sched/enable
+ # echo 1 > /sys/kernel/debug/tracing/events/sched/enable

To eanble all events:

- # echo 1 > /debug/tracing/events/enable
+ # echo 1 > /sys/kernel/debug/tracing/events/enable

When reading one of these enable files, there are four results:

--
1.6.3.1

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GeunSik Lim ( Samsung Electronics )
e-Mail :1) geunsik.lim@samsung.com
2) leemgs@gmail.com , leemgs1@gmail.com
HomePage: http://blog.naver.com/invain/
-----------------------------------------------


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