Add new kernel probes instrumentation

[lttng-modules.git] / instrumentation / events / lttng-module / compaction.h

diff --git a/instrumentation/events/lttng-module/compaction.h b/instrumentation/events/lttng-module/compaction.h
new file mode 100644 (file)
index 0000000..1b237fa
--- /dev/null
+++ b/instrumentation/events/lttng-module/compaction.h
@@ -0,0 +1,74 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM compaction
+
+#if !defined(_TRACE_COMPACTION_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_COMPACTION_H
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+#include <trace/events/gfpflags.h>
+
+DECLARE_EVENT_CLASS(mm_compaction_isolate_template,
+
+       TP_PROTO(unsigned long nr_scanned,
+               unsigned long nr_taken),
+
+       TP_ARGS(nr_scanned, nr_taken),
+
+       TP_STRUCT__entry(
+               __field(unsigned long, nr_scanned)
+               __field(unsigned long, nr_taken)
+       ),
+
+       TP_fast_assign(
+               tp_assign(nr_scanned, nr_scanned)
+               tp_assign(nr_taken, nr_taken)
+       ),
+
+       TP_printk("nr_scanned=%lu nr_taken=%lu",
+               __entry->nr_scanned,
+               __entry->nr_taken)
+)
+
+DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_migratepages,
+
+       TP_PROTO(unsigned long nr_scanned,
+               unsigned long nr_taken),
+
+       TP_ARGS(nr_scanned, nr_taken)
+)
+
+DEFINE_EVENT(mm_compaction_isolate_template, mm_compaction_isolate_freepages,
+       TP_PROTO(unsigned long nr_scanned,
+               unsigned long nr_taken),
+
+       TP_ARGS(nr_scanned, nr_taken)
+)
+
+TRACE_EVENT(mm_compaction_migratepages,
+
+       TP_PROTO(unsigned long nr_migrated,
+               unsigned long nr_failed),
+
+       TP_ARGS(nr_migrated, nr_failed),
+
+       TP_STRUCT__entry(
+               __field(unsigned long, nr_migrated)
+               __field(unsigned long, nr_failed)
+       ),
+
+       TP_fast_assign(
+               tp_assign(nr_migrated, nr_migrated)
+               tp_assign(nr_failed, nr_failed)
+       ),
+
+       TP_printk("nr_migrated=%lu nr_failed=%lu",
+               __entry->nr_migrated,
+               __entry->nr_failed)
+)
+
+
+#endif /* _TRACE_COMPACTION_H */
+
+/* This part must be outside protection */
+#include "../../../probes/define_trace.h"