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ftrace: fix boot trace sched startup

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Impact: boot tracer startup modified

The boot tracer calls into some of the schedule tracing private functions
that should not be exported. This patch cleans it up, and makes
way for further changes in the ftrace infrastructure.

This patch adds a api to assign a tracer array to the schedule
context switch tracer.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt
2008-11-07 22:36:02 -05:00
committed by Ingo Molnar
parent 0183fb1c94
commit 75f5c47da3
3 changed files with 22 additions and 4 deletions
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2
kernel/trace/trace.h
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@@ -49,7 +49,6 @@ struct ftrace_entry {
unsigned long parent_ip;
};
extern struct tracer boot_tracer;
extern struct tracer sched_switch_trace; /* Used by the boot tracer */
/*
* Context switch trace entry - which task (and prio) we switched from/to:
@@ -325,6 +324,7 @@ void trace_function(struct trace_array *tr,
void tracing_start_cmdline_record(void);
void tracing_stop_cmdline_record(void);
void tracing_cmdline_assign_trace(struct trace_array *tr);
int register_tracer(struct tracer *type);
void unregister_tracer(struct tracer *type);