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| author | Steven Rostedt <srostedt@redhat.com> | 2009-01-14 14:50:19 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-21 15:21:30 +0100 |
| commit | a442e5e0a2011af5b2d1f118fee0a8f9079f1d88 (patch) | |
| tree | 060bada7945ebeeec57c1b8c201552767da590aa /kernel/trace | |
| parent | faf6861ebd776871e77b761c43ec045cd20b5716 (diff) | |
| download | blackbird-op-linux-a442e5e0a2011af5b2d1f118fee0a8f9079f1d88.tar.gz blackbird-op-linux-a442e5e0a2011af5b2d1f118fee0a8f9079f1d88.zip | |
trace: stop all recording to ring buffer on ftrace_dump
Impact: limit ftrace dump output
Currently ftrace_dump only calls ftrace_kill that is a fast way
to prevent the function tracer functions from being called (just sets
a flag and clears the function to call, nothing else). It is better
to also turn off any recording to the ring buffers as well.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 1a1c5a6ab24e..4d89e84f0f4b 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3770,6 +3770,7 @@ void ftrace_dump(void) dump_ran = 1; /* No turning back! */ + tracing_off(); ftrace_kill(); for_each_tracing_cpu(cpu) { |
