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authorIngo Molnar <mingo@elte.hu>2008-05-12 21:21:02 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 22:01:13 +0200
commita4feb8348b62fe76a63cdb5569f5c920f5283c06 (patch)
tree029d0a5f2f581e823399df42d1bdb64bcbe64c0e /kernel/trace
parent9fe068e92f6290e89e19adc521441661a1229f00 (diff)
ftrace: special stacktrace
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace.c47
1 files changed, 24 insertions, 23 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ca0d6ff74c1..c232d8248a0 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -808,29 +808,6 @@ ftrace(struct trace_array *tr, struct trace_array_cpu *data,
trace_function(tr, data, ip, parent_ip, flags);
}
-void
-__trace_special(void *__tr, void *__data,
- unsigned long arg1, unsigned long arg2, unsigned long arg3)
-{
- struct trace_array_cpu *data = __data;
- struct trace_array *tr = __tr;
- struct trace_entry *entry;
- unsigned long irq_flags;
-
- raw_local_irq_save(irq_flags);
- __raw_spin_lock(&data->lock);
- entry = tracing_get_trace_entry(tr, data);
- tracing_generic_entry_update(entry, 0);
- entry->type = TRACE_SPECIAL;
- entry->special.arg1 = arg1;
- entry->special.arg2 = arg2;
- entry->special.arg3 = arg3;
- __raw_spin_unlock(&data->lock);
- raw_local_irq_restore(irq_flags);
-
- trace_wake_up();
-}
-
void __trace_stack(struct trace_array *tr,
struct trace_array_cpu *data,
unsigned long flags,
@@ -857,6 +834,30 @@ void __trace_stack(struct trace_array *tr,
}
void
+__trace_special(void *__tr, void *__data,
+ unsigned long arg1, unsigned long arg2, unsigned long arg3)
+{
+ struct trace_array_cpu *data = __data;
+ struct trace_array *tr = __tr;
+ struct trace_entry *entry;
+ unsigned long irq_flags;
+
+ raw_local_irq_save(irq_flags);
+ __raw_spin_lock(&data->lock);
+ entry = tracing_get_trace_entry(tr, data);
+ tracing_generic_entry_update(entry, 0);
+ entry->type = TRACE_SPECIAL;
+ entry->special.arg1 = arg1;
+ entry->special.arg2 = arg2;
+ entry->special.arg3 = arg3;
+ __trace_stack(tr, data, irq_flags, 4);
+ __raw_spin_unlock(&data->lock);
+ raw_local_irq_restore(irq_flags);
+
+ trace_wake_up();
+}
+
+void
tracing_sched_switch_trace(struct trace_array *tr,
struct trace_array_cpu *data,
struct task_struct *prev,