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Diffstat (limited to 'kernel/trace/trace_irqsoff.c')
-rw-r--r--kernel/trace/trace_irqsoff.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 37ad49407f27..f925dbbff2a6 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -95,7 +95,7 @@ irqsoff_tracer_call(unsigned long ip, unsigned long parent_ip)
disabled = atomic_inc_return(&data->disabled);
if (likely(disabled == 1))
- trace_function(tr, data, ip, parent_ip, flags);
+ trace_function(tr, data, ip, parent_ip, flags, preempt_count());
atomic_dec(&data->disabled);
}
@@ -130,6 +130,7 @@ check_critical_timing(struct trace_array *tr,
unsigned long latency, t0, t1;
cycle_t T0, T1, delta;
unsigned long flags;
+ int pc;
/*
* usecs conversion is slow so we try to delay the conversion
@@ -144,13 +145,15 @@ check_critical_timing(struct trace_array *tr,
if (!report_latency(delta))
goto out;
+ pc = preempt_count();
+
spin_lock_irqsave(&max_trace_lock, flags);
/* check if we are still the max latency */
if (!report_latency(delta))
goto out_unlock;
- trace_function(tr, data, CALLER_ADDR0, parent_ip, flags);
+ trace_function(tr, data, CALLER_ADDR0, parent_ip, flags, pc);
latency = nsecs_to_usecs(delta);
@@ -174,7 +177,7 @@ out:
data->critical_sequence = max_sequence;
data->preempt_timestamp = ftrace_now(cpu);
tracing_reset(tr, cpu);
- trace_function(tr, data, CALLER_ADDR0, parent_ip, flags);
+ trace_function(tr, data, CALLER_ADDR0, parent_ip, flags, pc);
}
static inline void
@@ -207,7 +210,7 @@ start_critical_timing(unsigned long ip, unsigned long parent_ip)
local_save_flags(flags);
- trace_function(tr, data, ip, parent_ip, flags);
+ trace_function(tr, data, ip, parent_ip, flags, preempt_count());
per_cpu(tracing_cpu, cpu) = 1;
@@ -241,7 +244,7 @@ stop_critical_timing(unsigned long ip, unsigned long parent_ip)
atomic_inc(&data->disabled);
local_save_flags(flags);
- trace_function(tr, data, ip, parent_ip, flags);
+ trace_function(tr, data, ip, parent_ip, flags, preempt_count());
check_critical_timing(tr, data, parent_ip ? : ip, cpu);
data->critical_start = 0;
atomic_dec(&data->disabled);
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