1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM filemap
4
5#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_FILEMAP_H
7
8#include <linux/types.h>
9#include <linux/tracepoint.h>
10#include <linux/mm.h>
11#include <linux/memcontrol.h>
12#include <linux/device.h>
13#include <linux/kdev_t.h>
14#include <linux/errseq.h>
15
16DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
17
18	TP_PROTO(struct page *page),
19
20	TP_ARGS(page),
21
22	TP_STRUCT__entry(
23		__field(unsigned long, pfn)
24		__field(unsigned long, i_ino)
25		__field(unsigned long, index)
26		__field(dev_t, s_dev)
27	),
28
29	TP_fast_assign(
30		__entry->pfn = page_to_pfn(page);
31		__entry->i_ino = page->mapping->host->i_ino;
32		__entry->index = page->index;
33		if (page->mapping->host->i_sb)
34			__entry->s_dev = page->mapping->host->i_sb->s_dev;
35		else
36			__entry->s_dev = page->mapping->host->i_rdev;
37	),
38
39	TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu",
40		MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
41		__entry->i_ino,
42		pfn_to_page(__entry->pfn),
43		__entry->pfn,
44		__entry->index << PAGE_SHIFT)
45);
46
47DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
48	TP_PROTO(struct page *page),
49	TP_ARGS(page)
50	);
51
52DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
53	TP_PROTO(struct page *page),
54	TP_ARGS(page)
55	);
56
57TRACE_EVENT(filemap_set_wb_err,
58		TP_PROTO(struct address_space *mapping, errseq_t eseq),
59
60		TP_ARGS(mapping, eseq),
61
62		TP_STRUCT__entry(
63			__field(unsigned long, i_ino)
64			__field(dev_t, s_dev)
65			__field(errseq_t, errseq)
66		),
67
68		TP_fast_assign(
69			__entry->i_ino = mapping->host->i_ino;
70			__entry->errseq = eseq;
71			if (mapping->host->i_sb)
72				__entry->s_dev = mapping->host->i_sb->s_dev;
73			else
74				__entry->s_dev = mapping->host->i_rdev;
75		),
76
77		TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
78			MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
79			__entry->i_ino, __entry->errseq)
80);
81
82TRACE_EVENT(file_check_and_advance_wb_err,
83		TP_PROTO(struct file *file, errseq_t old),
84
85		TP_ARGS(file, old),
86
87		TP_STRUCT__entry(
88			__field(struct file *, file)
89			__field(unsigned long, i_ino)
90			__field(dev_t, s_dev)
91			__field(errseq_t, old)
92			__field(errseq_t, new)
93		),
94
95		TP_fast_assign(
96			__entry->file = file;
97			__entry->i_ino = file->f_mapping->host->i_ino;
98			if (file->f_mapping->host->i_sb)
99				__entry->s_dev =
100					file->f_mapping->host->i_sb->s_dev;
101			else
102				__entry->s_dev =
103					file->f_mapping->host->i_rdev;
104			__entry->old = old;
105			__entry->new = file->f_wb_err;
106		),
107
108		TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
109			__entry->file, MAJOR(__entry->s_dev),
110			MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
111			__entry->new)
112);
113#endif /* _TRACE_FILEMAP_H */
114
115/* This part must be outside protection */
116#include <trace/define_trace.h>
117