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Port ftrace to markers

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Porting ftrace to the marker infrastructure.

Don't need to chain to the wakeup tracer from the sched tracer, because markers
support multiple probes connected.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Mathieu Desnoyers
2008-05-12 21:21:10 +02:00
committed by Thomas Gleixner
parent 0aa977f592
commit 5b82a1b08a
5 changed files with 257 additions and 90 deletions
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20
kernel/trace/trace.h
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@@ -234,25 +234,10 @@ void update_max_tr_single(struct trace_array *tr,
extern cycle_t ftrace_now(int cpu);
#ifdef CONFIG_SCHED_TRACER
extern void
wakeup_sched_switch(struct task_struct *prev, struct task_struct *next);
extern void
wakeup_sched_wakeup(struct task_struct *wakee, struct task_struct *curr);
#else
static inline void
wakeup_sched_switch(struct task_struct *prev, struct task_struct *next)
{
}
static inline void
wakeup_sched_wakeup(struct task_struct *wakee, struct task_struct *curr)
{
}
#endif
#ifdef CONFIG_CONTEXT_SWITCH_TRACER
typedef void
(*tracer_switch_func_t)(void *private,
void *__rq,
struct task_struct *prev,
struct task_struct *next);
@@ -262,9 +247,6 @@ struct tracer_switch_ops {
struct tracer_switch_ops *next;
};
extern int register_tracer_switch(struct tracer_switch_ops *ops);
extern int unregister_tracer_switch(struct tracer_switch_ops *ops);
#endif /* CONFIG_CONTEXT_SWITCH_TRACER */
#ifdef CONFIG_DYNAMIC_FTRACE