[PATCH 1/2] ftrace: Fix README to state tracing_on to start/stop tracing

From: Steven Rostedt
Date: Mon Oct 17 2011 - 13:50:47 EST


From: Geunsik Lim <geunsik.lim@xxxxxxxxxxx>

tracing_enabled option is deprecated.
To start/stop tracing, write to /sys/kernel/debug/tracing/tracing_on
without tracing_enabled. This patch is based on Linux 3.1.0-rc1

Signed-off-by: Geunsik Lim <geunsik.lim@xxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1313127022-23830-1-git-send-email-leemgs1@xxxxxxxxx
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
kernel/trace/trace.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index f86efe9..cea1605 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2720,9 +2720,9 @@ static const char readme_msg[] =
"# cat /sys/kernel/debug/tracing/trace_options\n"
"noprint-parent nosym-offset nosym-addr noverbose\n"
"# echo print-parent > /sys/kernel/debug/tracing/trace_options\n"
- "# echo 1 > /sys/kernel/debug/tracing/tracing_enabled\n"
+ "# echo 1 > /sys/kernel/debug/tracing/tracing_on\n"
"# cat /sys/kernel/debug/tracing/trace > /tmp/trace.txt\n"
- "# echo 0 > /sys/kernel/debug/tracing/tracing_enabled\n"
+ "# echo 0 > /sys/kernel/debug/tracing/tracing_on\n"
;

static ssize_t
--
1.7.6.3


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