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tracing/fastboot: use sched switch tracer from boot tracer

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Impact: enhance boot trace output with scheduling events

Use the sched_switch tracer from the boot tracer.

We also can trace schedule events inside the initcalls.
Sched tracing is disabled after the initcall has finished and
then reenabled before the next one is started.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Frederic Weisbecker
2008-10-31 13:20:08 +01:00
committed by Ingo Molnar
parent e55f605c14
commit d7ad44b697
4 changed files with 12 additions and 3 deletions
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kernel/trace/trace.h
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@@ -49,6 +49,7 @@ 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: