Import lib ring buffer into LTTng modules

[lttng-modules.git] / lib / ringbuffer / nohz.h

diff --git a/lib/ringbuffer/nohz.h b/lib/ringbuffer/nohz.h
new file mode 100644 (file)
index 0000000..a2d7e45
--- /dev/null
+++ b/lib/ringbuffer/nohz.h
@@ -0,0 +1,22 @@
+#ifndef _LINUX_RING_BUFFER_NOHZ_H
+#define _LINUX_RING_BUFFER_NOHZ_H
+
+#ifdef CONFIG_LIB_RING_BUFFER
+void lib_ring_buffer_tick_nohz_flush(void);
+void lib_ring_buffer_tick_nohz_stop(void);
+void lib_ring_buffer_tick_nohz_restart(void);
+#else
+static inline void lib_ring_buffer_tick_nohz_flush(void)
+{
+}
+
+static inline void lib_ring_buffer_tick_nohz_stop(void)
+{
+}
+
+static inline void lib_ring_buffer_tick_nohz_restart(void)
+{
+}
+#endif
+
+#endif /* _LINUX_RING_BUFFER_NOHZ_H */