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 folio *folio),
19
20	TP_ARGS(folio),
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		__field(unsigned char, order)
28	),
29
30	TP_fast_assign(
31		__entry->pfn = folio_pfn(folio);
32		__entry->i_ino = folio->mapping->host->i_ino;
33		__entry->index = folio->index;
34		if (folio->mapping->host->i_sb)
35			__entry->s_dev = folio->mapping->host->i_sb->s_dev;
36		else
37			__entry->s_dev = folio->mapping->host->i_rdev;
38		__entry->order = folio_order(folio);
39	),
40
41	TP_printk("dev %d:%d ino %lx pfn=0x%lx ofs=%lu order=%u",
42		MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
43		__entry->i_ino,
44		__entry->pfn,
45		__entry->index << PAGE_SHIFT,
46		__entry->order)
47);
48
49DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
50	TP_PROTO(struct folio *folio),
51	TP_ARGS(folio)
52	);
53
54DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
55	TP_PROTO(struct folio *folio),
56	TP_ARGS(folio)
57	);
58
59TRACE_EVENT(filemap_set_wb_err,
60		TP_PROTO(struct address_space *mapping, errseq_t eseq),
61
62		TP_ARGS(mapping, eseq),
63
64		TP_STRUCT__entry(
65			__field(unsigned long, i_ino)
66			__field(dev_t, s_dev)
67			__field(errseq_t, errseq)
68		),
69
70		TP_fast_assign(
71			__entry->i_ino = mapping->host->i_ino;
72			__entry->errseq = eseq;
73			if (mapping->host->i_sb)
74				__entry->s_dev = mapping->host->i_sb->s_dev;
75			else
76				__entry->s_dev = mapping->host->i_rdev;
77		),
78
79		TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
80			MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
81			__entry->i_ino, __entry->errseq)
82);
83
84TRACE_EVENT(file_check_and_advance_wb_err,
85		TP_PROTO(struct file *file, errseq_t old),
86
87		TP_ARGS(file, old),
88
89		TP_STRUCT__entry(
90			__field(struct file *, file)
91			__field(unsigned long, i_ino)
92			__field(dev_t, s_dev)
93			__field(errseq_t, old)
94			__field(errseq_t, new)
95		),
96
97		TP_fast_assign(
98			__entry->file = file;
99			__entry->i_ino = file->f_mapping->host->i_ino;
100			if (file->f_mapping->host->i_sb)
101				__entry->s_dev =
102					file->f_mapping->host->i_sb->s_dev;
103			else
104				__entry->s_dev =
105					file->f_mapping->host->i_rdev;
106			__entry->old = old;
107			__entry->new = file->f_wb_err;
108		),
109
110		TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
111			__entry->file, MAJOR(__entry->s_dev),
112			MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
113			__entry->new)
114);
115#endif /* _TRACE_FILEMAP_H */
116
117/* This part must be outside protection */
118#include <trace/define_trace.h>
119