1 files changed, 83 insertions, 0 deletions
diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h
new file mode 100644
index 000000000..171524d35
--- /dev/null
+++ b/include/trace/events/pagemap.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM pagemap
+
+#if !defined(_TRACE_PAGEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_PAGEMAP_H
+
+#include <linux/tracepoint.h>
+#include <linux/mm.h>
+
+#define	PAGEMAP_MAPPED		0x0001u
+#define PAGEMAP_ANONYMOUS	0x0002u
+#define PAGEMAP_FILE		0x0004u
+#define PAGEMAP_SWAPCACHE	0x0008u
+#define PAGEMAP_SWAPBACKED	0x0010u
+#define PAGEMAP_MAPPEDDISK	0x0020u
+#define PAGEMAP_BUFFERS		0x0040u
+
+#define trace_pagemap_flags(folio) ( \
+	(folio_test_anon(folio)		? PAGEMAP_ANONYMOUS  : PAGEMAP_FILE) | \
+	(folio_mapped(folio)		? PAGEMAP_MAPPED     : 0) | \
+	(folio_test_swapcache(folio)	? PAGEMAP_SWAPCACHE  : 0) | \
+	(folio_test_swapbacked(folio)	? PAGEMAP_SWAPBACKED : 0) | \
+	(folio_test_mappedtodisk(folio)	? PAGEMAP_MAPPEDDISK : 0) | \
+	(folio_test_private(folio)	? PAGEMAP_BUFFERS    : 0) \
+	)
+
+TRACE_EVENT(mm_lru_insertion,
+
+	TP_PROTO(struct folio *folio),
+
+	TP_ARGS(folio),
+
+	TP_STRUCT__entry(
+		__field(struct folio *,	folio	)
+		__field(unsigned long,	pfn	)
+		__field(enum lru_list,	lru	)
+		__field(unsigned long,	flags	)
+	),
+
+	TP_fast_assign(
+		__entry->folio	= folio;
+		__entry->pfn	= folio_pfn(folio);
+		__entry->lru	= folio_lru_list(folio);
+		__entry->flags	= trace_pagemap_flags(folio);
+	),
+
+	/* Flag format is based on page-types.c formatting for pagemap */
+	TP_printk("folio=%p pfn=0x%lx lru=%d flags=%s%s%s%s%s%s",
+			__entry->folio,
+			__entry->pfn,
+			__entry->lru,
+			__entry->flags & PAGEMAP_MAPPED		? "M" : " ",
+			__entry->flags & PAGEMAP_ANONYMOUS	? "a" : "f",
+			__entry->flags & PAGEMAP_SWAPCACHE	? "s" : " ",
+			__entry->flags & PAGEMAP_SWAPBACKED	? "b" : " ",
+			__entry->flags & PAGEMAP_MAPPEDDISK	? "d" : " ",
+			__entry->flags & PAGEMAP_BUFFERS	? "B" : " ")
+);
+
+TRACE_EVENT(mm_lru_activate,
+
+	TP_PROTO(struct folio *folio),
+
+	TP_ARGS(folio),
+
+	TP_STRUCT__entry(
+		__field(struct folio *,	folio	)
+		__field(unsigned long,	pfn	)
+	),
+
+	TP_fast_assign(
+		__entry->folio	= folio;
+		__entry->pfn	= folio_pfn(folio);
+	),
+
+	TP_printk("folio=%p pfn=0x%lx", __entry->folio, __entry->pfn)
+);
+
+#endif /* _TRACE_PAGEMAP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>