linux-kernel - [PATCH 05/25] selftests/ftrace: More initialize features in initialize

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Message-Id: <153269353884.3084.8412677007260573415.stgit@devbox>
Date:   Fri, 27 Jul 2018 21:12:19 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Shuah Khan <shuah@...nel.org>, Steven Rostedt <rostedt@...dmis.org>
Cc:     Ingo Molnar <mingo@...hat.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 05/25] selftests/ftrace: More initialize features in initialize_ftrace

Clear pid filter, synthetic_events, snapshots,
and trace log in initialize_ftrace(), since
those are used in test cases.

Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
---
 tools/testing/selftests/ftrace/test.d/functions |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index e4645d5e3126..f17eaf3582b2 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -91,10 +91,14 @@ initialize_ftrace() { # Reset ftrace to initial-state
     reset_events_filter
     disable_events
     echo > set_event_pid	# event tracer is always on
+    echo > set_ftrace_pid
     [ -f set_ftrace_filter ] && echo | tee set_ftrace_*
     [ -f set_graph_function ] && echo | tee set_graph_*
     [ -f stack_trace_filter ] && echo > stack_trace_filter
     [ -f kprobe_events ] && echo > kprobe_events
     [ -f uprobe_events ] && echo > uprobe_events
+    [ -f synthetic_events ] && echo > synthetic_events
+    [ -f snapshot ] && echo 0 > snapshot
+    clear_trace
     enable_tracing
 }