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ftrace: introduce tracing_reset_online_cpus() helper

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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>
This commit is contained in:
Pekka J Enberg
2008-12-19 12:08:39 +02:00
committed by Ingo Molnar
parent 30cd324e97
commit 213cc06079
8 changed files with 20 additions and 63 deletions
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14
kernel/trace/trace_hw_branches.c
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@@ -25,16 +25,6 @@ static DEFINE_PER_CPU(unsigned char[SIZEOF_BTS], buffer);
#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 @@ static void bts_trace_start(struct trace_array *tr)
{
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 void bts_trace_stop(struct trace_array *tr)
static int bts_trace_init(struct trace_array *tr)
{
bts_trace_reset(tr);
tracing_reset_online_cpus(tr);
bts_trace_start(tr);
return 0;