1 files changed, 88 insertions, 0 deletions
diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h
new file mode 100644
index 000000000..8fd1babae
--- /dev/null
+++ b/include/trace/events/pagemap.h
@@ -0,0 +1,88 @@
+/* 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(page) ( \
+	(PageAnon(page)		? PAGEMAP_ANONYMOUS  : PAGEMAP_FILE) | \
+	(page_mapped(page)	? PAGEMAP_MAPPED     : 0) | \
+	(PageSwapCache(page)	? PAGEMAP_SWAPCACHE  : 0) | \
+	(PageSwapBacked(page)	? PAGEMAP_SWAPBACKED : 0) | \
+	(PageMappedToDisk(page)	? PAGEMAP_MAPPEDDISK : 0) | \
+	(page_has_private(page) ? PAGEMAP_BUFFERS    : 0) \
+	)
+
+TRACE_EVENT(mm_lru_insertion,
+
+	TP_PROTO(
+		struct page *page,
+		int lru
+	),
+
+	TP_ARGS(page, lru),
+
+	TP_STRUCT__entry(
+		__field(struct page *,	page	)
+		__field(unsigned long,	pfn	)
+		__field(int,		lru	)
+		__field(unsigned long,	flags	)
+	),
+
+	TP_fast_assign(
+		__entry->page	= page;
+		__entry->pfn	= page_to_pfn(page);
+		__entry->lru	= lru;
+		__entry->flags	= trace_pagemap_flags(page);
+	),
+
+	/* Flag format is based on page-types.c formatting for pagemap */
+	TP_printk("page=%p pfn=%lu lru=%d flags=%s%s%s%s%s%s",
+			__entry->page,
+			__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 page *page),
+
+	TP_ARGS(page),
+
+	TP_STRUCT__entry(
+		__field(struct page *,	page	)
+		__field(unsigned long,	pfn	)
+	),
+
+	TP_fast_assign(
+		__entry->page	= page;
+		__entry->pfn	= page_to_pfn(page);
+	),
+
+	/* Flag format is based on page-types.c formatting for pagemap */
+	TP_printk("page=%p pfn=%lu", __entry->page, __entry->pfn)
+
+);
+
+#endif /* _TRACE_PAGEMAP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>