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| author | Steven Rostedt <rostedt@goodmis.org> | 2008-05-12 21:21:00 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-23 21:52:01 +0200 |
| commit | 4fcdae83cebda24b519a89d3dd976081fff1ca80 (patch) | |
| tree | 6ad0c14f709af1fe2352ce591d3c84d76c7646a0 /kernel/trace/trace.h | |
| parent | ab46428c6969d50ecf6f6e97b7a84abba6274368 (diff) | |
| download | lwn-4fcdae83cebda24b519a89d3dd976081fff1ca80.tar.gz lwn-4fcdae83cebda24b519a89d3dd976081fff1ca80.zip | |
ftrace: comment code
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>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index b0ca7473671b..21c29ee13e53 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -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, |