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ftrace: comment code

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This is first installment of adding documentation to the ftrace.
Expect many more patches of this kind in the near future.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Steven Rostedt
2008-05-12 21:21:00 +02:00
committed by Thomas Gleixner
parent ab46428c69
commit 4fcdae83ce
2 changed files with 141 additions and 1 deletions
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7
kernel/trace/trace.h
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@@ -294,6 +294,13 @@ extern long ns2usecs(cycle_t nsec);
extern unsigned long trace_flags;
/*
* trace_iterator_flags is an enumeration that defines bit
* positions into trace_flags that controls the output.
*
* NOTE: These bits must match the trace_options array in
* trace.c.
*/
enum trace_iterator_flags {
TRACE_ITER_PRINT_PARENT = 0x01,
TRACE_ITER_SYM_OFFSET = 0x02,