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authorSteven Rostedt <srostedt@redhat.com>2008-11-21 12:41:55 -0500
committerIngo Molnar <mingo@elte.hu>2008-11-23 11:44:37 +0100
commit033601a32b2012b6948e80e739cca40bff4de4a0 (patch)
tree79f5fb4de0c76472174a1fd46c28e1503ac88dfc /include/linux/ring_buffer.h
parenta0a70c735ef714fe1b6777b571630c3d50c7b008 (diff)
downloadop-kernel-dev-033601a32b2012b6948e80e739cca40bff4de4a0.zip
op-kernel-dev-033601a32b2012b6948e80e739cca40bff4de4a0.tar.gz
ring-buffer: add tracing_off_permanent
Impact: feature to permanently disable ring buffer This patch adds a API to the ring buffer code that will permanently disable the ring buffer from ever recording. This should only be called when some serious anomaly is detected, and the system may be in an unstable state. When that happens, shutting down the recording to the ring buffers may be appropriate. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/ring_buffer.h')
-rw-r--r--include/linux/ring_buffer.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index e097c2e..3bb87a7 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -122,6 +122,7 @@ void ring_buffer_normalize_time_stamp(int cpu, u64 *ts);
void tracing_on(void);
void tracing_off(void);
+void tracing_off_permanent(void);
enum ring_buffer_flags {
RB_FL_OVERWRITE = 1 << 0,
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