diff options
| author |   Ingo Molnar <mingo@elte.hu> | 2008-05-12 21:21:02 +0200 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2008-05-23 22:01:13 +0200 |
| commit | a4feb8348b62fe76a63cdb5569f5c920f5283c06 (patch) | |
| tree | 029d0a5f2f581e823399df42d1bdb64bcbe64c0e /kernel/trace/trace.c | |
| parent | ftrace: trace faster (diff) | |
| download | linux-dev-a4feb8348b62fe76a63cdb5569f5c920f5283c06.tar.xz linux-dev-a4feb8348b62fe76a63cdb5569f5c920f5283c06.zip | |
ftrace: special stacktrace
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index ca0d6ff74c11..c232d8248a09 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, |