From: Tzvetomir Stoyanov <tstoyanov@vmware.com>
To: "rostedt@goodmis.org" <rostedt@goodmis.org>
Cc: "linux-trace-devel@vger.kernel.org" <linux-trace-devel@vger.kernel.org>
Subject: [PATCH 3/5] fix "trace-cmd reset" command to restore default clock
Date: Thu, 13 Dec 2018 14:21:41 +0000 [thread overview]
Message-ID: <20181213142125.12149-4-tstoyanov@vmware.com> (raw)
In-Reply-To: <20181213142125.12149-1-tstoyanov@vmware.com>
The "trace-cmd reset" command should restore ftrace to its default state.
This patch sets "tracing/trace_clock" to its default value "local",
when the "trace-cmd reset" command is executed.
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
tracecmd/trace-record.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index e02660a..38d9871 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -3753,6 +3753,14 @@ static void clear_filters(void)
clear_instance_filters(instance);
}
+static void reset_clock(void)
+{
+ struct buffer_instance *instance;
+
+ for_all_instances(instance)
+ write_instance_file(instance, "trace_clock", "local", "clock");
+}
+
static void clear_triggers(void)
{
struct buffer_instance *instance;
@@ -4454,6 +4462,8 @@ void trace_reset(int argc, char **argv)
set_buffer_size();
clear_filters();
clear_triggers();
+ /* set clock to "local" */
+ reset_clock();
tracecmd_remove_instances();
clear_func_filters();
/* restore tracing_on to 1 */
--
2.19.2
next prev parent reply other threads:[~2018-12-13 14:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-13 14:21 [PATCH 0/5] trace-cmd reset fixes Tzvetomir Stoyanov
2018-12-13 14:21 ` [PATCH 1/5] fix "trace-cmd reset" command to restore "tracng_on" Tzvetomir Stoyanov
2018-12-13 14:21 ` [PATCH 2/5] fix "trace-cmd reset -a -d" segfault Tzvetomir Stoyanov
2018-12-13 14:21 ` Tzvetomir Stoyanov [this message]
2018-12-13 14:21 ` [PATCH 4/5] fix "trace-cmd reset" command to restore the default value of set_event_pid Tzvetomir Stoyanov
2019-03-05 19:03 ` Steven Rostedt
2018-12-13 14:21 ` [PATCH 5/5] fix "trace-cmd reset" command to restore the default value of tracing_max_latency Tzvetomir Stoyanov
2019-03-05 19:06 ` Steven Rostedt
2019-03-05 13:24 ` [PATCH 0/5] trace-cmd reset fixes Slavomir Kaslev
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