From 08bafa0efcf29fe18ec39c2147077b597368b018 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Mon, 12 May 2008 21:20:45 +0200
Subject: [PATCH] ftrace: disable all tracers on corrupted buffer

If the trace buffer is detected to be corrupted, then we
disable all tracers.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/trace/trace_selftest.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index 4c8a1b2d8231..a6f1ed75f836 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -67,6 +67,8 @@ trace_test_buffer_cpu(struct trace_array *tr, struct trace_array_cpu *data)
 	return 0;
 
  failed:
+	/* disable tracing */
+	tracing_disabled = 1;
 	printk(KERN_CONT ".. corrupted trace buffer .. ");
 	return -1;
 }
-- 
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