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authorFrédéric Weisbecker <fweisbec@gmail.com>2008-09-21 20:10:14 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-14 10:38:04 +0200
commit35cb5ed01261f5669657d2f1720aca902299887d (patch)
treeb4c91f58d56f0744d076cfb69967efa747f1385d /kernel/trace/trace_nop.c
parent8925b394eca0bb0a444a6487d702d0f650e94a10 (diff)
downloadop-kernel-dev-35cb5ed01261f5669657d2f1720aca902299887d.zip
op-kernel-dev-35cb5ed01261f5669657d2f1720aca902299887d.tar.gz
tracing/ftrace: make nop tracer reset previous entries
If nop tracer is selected, some old entries from the previous tracer could still be enqueued. Tracing have to be reset. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Steven Noonan <steven@uplinklabs.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_nop.c')
-rw-r--r--kernel/trace/trace_nop.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/trace_nop.c b/kernel/trace/trace_nop.c
index dafaefb..9fb02c1 100644
--- a/kernel/trace/trace_nop.c
+++ b/kernel/trace/trace_nop.c
@@ -26,8 +26,12 @@ static void stop_nop_trace(struct trace_array *tr)
static void nop_trace_init(struct trace_array *tr)
{
+ int cpu;
ctx_trace = tr;
+ for_each_online_cpu(cpu)
+ tracing_reset(tr->data[cpu]);
+
if (tr->ctrl)
start_nop_trace(tr);
}
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