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tracing: Add disable_on_free option

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Add a trace option to disable tracing on free. When this option is
set, a write into the free_buffer file will not only shrink the
ring buffer down to zero, but it will also disable tracing.

Cc: Vaibhav Nagarnaik <vnagarnaik@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt 2011-06-14 22:44:07 -04:00 • committed by Steven Rostedt
parent 4f271a2a60
commit cf30cf67d6
2 changed files with 5 additions and 2 deletions
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kernel/trace/trace.h
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@ -609,6 +609,7 @@ enum trace_iterator_flags {
TRACE_ITER_GRAPH_TIME = 0x80000,
TRACE_ITER_RECORD_CMD = 0x100000,
TRACE_ITER_OVERWRITE = 0x200000,
TRACE_ITER_STOP_ON_FREE = 0x400000,
};
/*