lkml.org 
[lkml]   [2021]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] tracing: Export tracing_start() and tracing_stop()
Date
tracing_stop() is very useful during hands-on debugging for getting the
trace to stop exactly when the problem is detected. Export this to
modules.

Personally, I haven't yet found the need to use tracing_start() from
code since I usually start tracing via tracefs, but export that too for
symmetry since it may have its uses together with tracing_stop().

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
---
kernel/trace/trace.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a21ef9cd2aae..5fa36f0705b7 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2301,6 +2301,7 @@ void tracing_start(void)
out:
raw_spin_unlock_irqrestore(&global_trace.start_lock, flags);
}
+EXPORT_SYMBOL_GPL(tracing_start);

static void tracing_start_tr(struct trace_array *tr)
{
@@ -2366,6 +2367,7 @@ void tracing_stop(void)
out:
raw_spin_unlock_irqrestore(&global_trace.start_lock, flags);
}
+EXPORT_SYMBOL_GPL(tracing_stop);

static void tracing_stop_tr(struct trace_array *tr)
{
--
2.28.0
\
 
 \ /
  Last update: 2021-06-02 10:02    [W:0.083 / U:1.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site