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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)
95 disabled = atomic_inc_return(&data->disabled); 95 disabled = atomic_inc_return(&data->disabled);
96 96
97 if (likely(disabled == 1)) 97 if (likely(disabled == 1))
98 trace_function(tr, data, ip, parent_ip, flags); 98 trace_function(tr, data, ip, parent_ip, flags, preempt_count());
99 99
100 atomic_dec(&data->disabled); 100 atomic_dec(&data->disabled);
101} 101}
@@ -130,6 +130,7 @@ check_critical_timing(struct trace_array *tr,
130 unsigned long latency, t0, t1; 130 unsigned long latency, t0, t1;
131 cycle_t T0, T1, delta; 131 cycle_t T0, T1, delta;
132 unsigned long flags; 132 unsigned long flags;
133 int pc;
133 134
134 /* 135 /*
135 * usecs conversion is slow so we try to delay the conversion 136 * usecs conversion is slow so we try to delay the conversion
@@ -144,13 +145,15 @@ check_critical_timing(struct trace_array *tr,
144 if (!report_latency(delta)) 145 if (!report_latency(delta))
145 goto out; 146 goto out;
146 147
148 pc = preempt_count();
149
147 spin_lock_irqsave(&max_trace_lock, flags); 150 spin_lock_irqsave(&max_trace_lock, flags);
148 151
149 /* check if we are still the max latency */ 152 /* check if we are still the max latency */
150 if (!report_latency(delta)) 153 if (!report_latency(delta))
151 goto out_unlock; 154 goto out_unlock;
152 155
153 trace_function(tr, data, CALLER_ADDR0, parent_ip, flags); 156 trace_function(tr, data, CALLER_ADDR0, parent_ip, flags, pc);
154 157
155 latency = nsecs_to_usecs(delta); 158 latency = nsecs_to_usecs(delta);
156 159
@@ -174,7 +177,7 @@ out:
174 data->critical_sequence = max_sequence; 177 data->critical_sequence = max_sequence;
175 data->preempt_timestamp = ftrace_now(cpu); 178 data->preempt_timestamp = ftrace_now(cpu);
176 tracing_reset(tr, cpu); 179 tracing_reset(tr, cpu);
177 trace_function(tr, data, CALLER_ADDR0, parent_ip, flags); 180 trace_function(tr, data, CALLER_ADDR0, parent_ip, flags, pc);
178} 181}
179 182
180static inline void 183static inline void
@@ -207,7 +210,7 @@ start_critical_timing(unsigned long ip, unsigned long parent_ip)
207 210
208 local_save_flags(flags); 211 local_save_flags(flags);
209 212
210 trace_function(tr, data, ip, parent_ip, flags); 213 trace_function(tr, data, ip, parent_ip, flags, preempt_count());
211 214
212 per_cpu(tracing_cpu, cpu) = 1; 215 per_cpu(tracing_cpu, cpu) = 1;
213 216
@@ -241,7 +244,7 @@ stop_critical_timing(unsigned long ip, unsigned long parent_ip)
241 atomic_inc(&data->disabled); 244 atomic_inc(&data->disabled);
242 245
243 local_save_flags(flags); 246 local_save_flags(flags);
244 trace_function(tr, data, ip, parent_ip, flags); 247 trace_function(tr, data, ip, parent_ip, flags, preempt_count());
245 check_critical_timing(tr, data, parent_ip ? : ip, cpu); 248 check_critical_timing(tr, data, parent_ip ? : ip, cpu);
246 data->critical_start = 0; 249 data->critical_start = 0;
247 atomic_dec(&data->disabled); 250 atomic_dec(&data->disabled);