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-rw-r--r--kernel/trace/trace_sysprof.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index a5779bd975d..eaca5ad803f 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -196,9 +196,9 @@ static enum hrtimer_restart stack_trace_timer_fn(struct hrtimer *hrtimer)
return HRTIMER_RESTART;
}
-static void start_stack_timer(int cpu)
+static void start_stack_timer(void *unused)
{
- struct hrtimer *hrtimer = &per_cpu(stack_trace_hrtimer, cpu);
+ struct hrtimer *hrtimer = &__get_cpu_var(stack_trace_hrtimer);
hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
hrtimer->function = stack_trace_timer_fn;
@@ -208,14 +208,7 @@ static void start_stack_timer(int cpu)
static void start_stack_timers(void)
{
- cpumask_t saved_mask = current->cpus_allowed;
- int cpu;
-
- for_each_online_cpu(cpu) {
- set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
- start_stack_timer(cpu);
- }
- set_cpus_allowed_ptr(current, &saved_mask);
+ on_each_cpu(start_stack_timer, NULL, 1);
}
static void stop_stack_timer(int cpu)