1/* SPDX-License-Identifier: GPL-2.0 */
 2#undef TRACE_SYSTEM
 3#define TRACE_SYSTEM pagemap
 4
 5#if !defined(_TRACE_PAGEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
 6#define _TRACE_PAGEMAP_H
 7
 8#include <linux/tracepoint.h>
 9#include <linux/mm.h>
10
11#define	PAGEMAP_MAPPED		0x0001u
12#define PAGEMAP_ANONYMOUS	0x0002u
13#define PAGEMAP_FILE		0x0004u
14#define PAGEMAP_SWAPCACHE	0x0008u
15#define PAGEMAP_SWAPBACKED	0x0010u
16#define PAGEMAP_MAPPEDDISK	0x0020u
17#define PAGEMAP_BUFFERS		0x0040u
18
19#define trace_pagemap_flags(page) ( \
20	(PageAnon(page)		? PAGEMAP_ANONYMOUS  : PAGEMAP_FILE) | \
21	(page_mapped(page)	? PAGEMAP_MAPPED     : 0) | \
22	(PageSwapCache(page)	? PAGEMAP_SWAPCACHE  : 0) | \
23	(PageSwapBacked(page)	? PAGEMAP_SWAPBACKED : 0) | \
24	(PageMappedToDisk(page)	? PAGEMAP_MAPPEDDISK : 0) | \
25	(page_has_private(page) ? PAGEMAP_BUFFERS    : 0) \
26	)
27
28TRACE_EVENT(mm_lru_insertion,
29
30	TP_PROTO(
31		struct page *page,
32		int lru
33	),
34
35	TP_ARGS(page, lru),
36
37	TP_STRUCT__entry(
38		__field(struct page *,	page	)
39		__field(unsigned long,	pfn	)
40		__field(int,		lru	)
41		__field(unsigned long,	flags	)
42	),
43
44	TP_fast_assign(
45		__entry->page	= page;
46		__entry->pfn	= page_to_pfn(page);
47		__entry->lru	= lru;
48		__entry->flags	= trace_pagemap_flags(page);
49	),
50
51	/* Flag format is based on page-types.c formatting for pagemap */
52	TP_printk("page=%p pfn=%lu lru=%d flags=%s%s%s%s%s%s",
53			__entry->page,
54			__entry->pfn,
55			__entry->lru,
56			__entry->flags & PAGEMAP_MAPPED		? "M" : " ",
57			__entry->flags & PAGEMAP_ANONYMOUS	? "a" : "f",
58			__entry->flags & PAGEMAP_SWAPCACHE	? "s" : " ",
59			__entry->flags & PAGEMAP_SWAPBACKED	? "b" : " ",
60			__entry->flags & PAGEMAP_MAPPEDDISK	? "d" : " ",
61			__entry->flags & PAGEMAP_BUFFERS	? "B" : " ")
62);
63
64TRACE_EVENT(mm_lru_activate,
65
66	TP_PROTO(struct page *page),
67
68	TP_ARGS(page),
69
70	TP_STRUCT__entry(
71		__field(struct page *,	page	)
72		__field(unsigned long,	pfn	)
73	),
74
75	TP_fast_assign(
76		__entry->page	= page;
77		__entry->pfn	= page_to_pfn(page);
78	),
79
80	/* Flag format is based on page-types.c formatting for pagemap */
81	TP_printk("page=%p pfn=%lu", __entry->page, __entry->pfn)
82
83);
84
85#endif /* _TRACE_PAGEMAP_H */
86
87/* This part must be outside protection */
88#include <trace/define_trace.h>