ftrace: Fix README to state tracing_on to start/stop tracing

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@samsung.com>
Link: http://lkml.kernel.org/r/1313127022-23830-1-git-send-email-leemgs1@gmail.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Geunsik Lim 2011-08-12 14:30:22 +09:00 committed by Steven Rostedt
parent 910e94dd0c
commit 9b5f8b31af

View File

@ -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