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authorArnaldo Carvalho de Melo <acme@redhat.com>2009-02-05 18:02:00 -0200
committerIngo Molnar <mingo@elte.hu>2009-02-06 01:01:41 +0100
commitb6f11df26fdc28324cf9c9e3b77f2dc985c1bb13 (patch)
treee03b4b8b9dad8a2d3f81574c10aab8fb7a779cbb /kernel/trace/trace_sysprof.c
parent51a763dd84253bab1d0a1e68e11a7753d1b702ca (diff)
trace: Call tracing_reset_online_cpus before tracer->init()
Impact: cleanup To make it easy for ftrace plugin writers, as this was open coded in the existing plugins Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Frédéric Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_sysprof.c')
-rw-r--r--kernel/trace/trace_sysprof.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index eaca5ad803f..84ca9d81e74 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -226,15 +226,6 @@ static void stop_stack_timers(void)
stop_stack_timer(cpu);
}
-static void start_stack_trace(struct trace_array *tr)
-{
- mutex_lock(&sample_timer_lock);
- tracing_reset_online_cpus(tr);
- start_stack_timers();
- tracer_enabled = 1;
- mutex_unlock(&sample_timer_lock);
-}
-
static void stop_stack_trace(struct trace_array *tr)
{
mutex_lock(&sample_timer_lock);
@@ -247,7 +238,10 @@ static int stack_trace_init(struct trace_array *tr)
{
sysprof_trace = tr;
- start_stack_trace(tr);
+ mutex_lock(&sample_timer_lock);
+ start_stack_timers();
+ tracer_enabled = 1;
+ mutex_unlock(&sample_timer_lock);
return 0;
}