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-rw-r--r--include/linux/ftrace_event.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 6f8d0b7..13a54d0 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -83,6 +83,9 @@ struct trace_iterator {
long idx;
cpumask_var_t started;
+
+ /* it's true when current open file is snapshot */
+ bool snapshot;
};
enum trace_iter_flags {