ftrace: introduce tracing_reset_online_cpus() helper
Impact: cleanup
This patch factors out common code from multiple tracers into a
tracing_reset_online_cpus() function and converts the tracers to use it.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/trace/trace_hw_branches.c b/kernel/trace/trace_hw_branches.c
index ee29e01..b6a3e20 100644
--- a/kernel/trace/trace_hw_branches.c
+++ b/kernel/trace/trace_hw_branches.c
@@ -25,16 +25,6 @@
#define this_buffer per_cpu(buffer, smp_processor_id())
-static void bts_trace_reset(struct trace_array *tr)
-{
- int cpu;
-
- tr->time_start = ftrace_now(tr->cpu);
-
- for_each_online_cpu(cpu)
- tracing_reset(tr, cpu);
-}
-
static void bts_trace_start_cpu(void *arg)
{
if (this_tracer)
@@ -54,7 +44,7 @@
{
int cpu;
- bts_trace_reset(tr);
+ tracing_reset_online_cpus(tr);
for_each_cpu_mask(cpu, cpu_possible_map)
smp_call_function_single(cpu, bts_trace_start_cpu, NULL, 1);
@@ -78,7 +68,7 @@
static int bts_trace_init(struct trace_array *tr)
{
- bts_trace_reset(tr);
+ tracing_reset_online_cpus(tr);
bts_trace_start(tr);
return 0;