aboutsummaryrefslogtreecommitdiff
path: root/fs/iomap/trace.h
blob: a6689a563c6e26735f5f5255ab66e479fb0dc509 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2009-2021 Christoph Hellwig
 *
 * NOTE: none of these tracepoints shall be considered a stable kernel ABI
 * as they can change at any time.
 *
 * Current conventions for printing numbers measuring specific units:
 *
 * offset: byte offset into a subcomponent of a file operation
 * pos: file offset, in bytes
 * length: length of a file operation, in bytes
 * ino: inode number
 *
 * Numbers describing space allocations should be formatted in hexadecimal.
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iomap

#if !defined(_IOMAP_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _IOMAP_TRACE_H

#include <linux/tracepoint.h>

struct inode;

DECLARE_EVENT_CLASS(iomap_readpage_class,
	TP_PROTO(struct inode *inode, int nr_pages),
	TP_ARGS(inode, nr_pages),
	TP_STRUCT__entry(
		__field(dev_t, dev)
		__field(u64, ino)
		__field(int, nr_pages)
	),
	TP_fast_assign(
		__entry->dev = inode->i_sb->s_dev;
		__entry->ino = inode->i_ino;
		__entry->nr_pages = nr_pages;
	),
	TP_printk("dev %d:%d ino 0x%llx nr_pages %d",
		  MAJOR(__entry->dev), MINOR(__entry->dev),
		  __entry->ino,
		  __entry->nr_pages)
)

#define DEFINE_READPAGE_EVENT(name)		\
DEFINE_EVENT(iomap_readpage_class, name,	\
	TP_PROTO(struct inode *inode, int nr_pages), \
	TP_ARGS(inode, nr_pages))
DEFINE_READPAGE_EVENT(iomap_readpage);
DEFINE_READPAGE_EVENT(iomap_readahead);

DECLARE_EVENT_CLASS(iomap_range_class,
	TP_PROTO(struct inode *inode, loff_t off, u64 len),
	TP_ARGS(inode, off, len),
	TP_STRUCT__entry(
		__field(dev_t, dev)
		__field(u64, ino)
		__field(loff_t, size)
		__field(loff_t, offset)
		__field(u64, length)
	),
	TP_fast_assign(
		__entry->dev = inode->i_sb->s_dev;
		__entry->ino = inode->i_ino;
		__entry->size = i_size_read(inode);
		__entry->offset = off;
		__entry->length = len;
	),
	TP_printk("dev %d:%d ino 0x%llx size 0x%llx offset 0x%llx length 0x%llx",
		  MAJOR(__entry->dev), MINOR(__entry->dev),
		  __entry->ino,
		  __entry->size,
		  __entry->offset,
		  __entry->length)
)

#define DEFINE_RANGE_EVENT(name)		\
DEFINE_EVENT(iomap_range_class, name,	\
	TP_PROTO(struct inode *inode, loff_t off, u64 len),\
	TP_ARGS(inode, off, len))
DEFINE_RANGE_EVENT(iomap_writepage);
DEFINE_RANGE_EVENT(iomap_releasepage);
DEFINE_RANGE_EVENT(iomap_invalidate_folio);
DEFINE_RANGE_EVENT(iomap_dio_invalidate_fail);

#define IOMAP_TYPE_STRINGS \
	{ IOMAP_HOLE,		"HOLE" }, \
	{ IOMAP_DELALLOC,	"DELALLOC" }, \
	{ IOMAP_MAPPED,		"MAPPED" }, \
	{ IOMAP_UNWRITTEN,	"UNWRITTEN" }, \
	{ IOMAP_INLINE,		"INLINE" }

#define IOMAP_FLAGS_STRINGS \
	{ IOMAP_WRITE,		"WRITE" }, \
	{ IOMAP_ZERO,		"ZERO" }, \
	{ IOMAP_REPORT,		"REPORT" }, \
	{ IOMAP_FAULT,		"FAULT" }, \
	{ IOMAP_DIRECT,		"DIRECT" }, \
	{ IOMAP_NOWAIT,		"NOWAIT" }

#define IOMAP_F_FLAGS_STRINGS \
	{ IOMAP_F_NEW,		"NEW" }, \
	{ IOMAP_F_DIRTY,	"DIRTY" }, \
	{ IOMAP_F_SHARED,	"SHARED" }, \
	{ IOMAP_F_MERGED,	"MERGED" }, \
	{ IOMAP_F_BUFFER_HEAD,	"BH" }, \
	{ IOMAP_F_SIZE_CHANGED,	"SIZE_CHANGED" }

DECLARE_EVENT_CLASS(iomap_class,
	TP_PROTO(struct inode *inode, struct iomap *iomap),
	TP_ARGS(inode, iomap),
	TP_STRUCT__entry(
		__field(dev_t, dev)
		__field(u64, ino)
		__field(u64, addr)
		__field(loff_t, offset)
		__field(u64, length)
		__field(u16, type)
		__field(u16, flags)
		__field(dev_t, bdev)
	),
	TP_fast_assign(
		__entry->dev = inode->i_sb->s_dev;
		__entry->ino = inode->i_ino;
		__entry->addr = iomap->addr;
		__entry->offset = iomap->offset;
		__entry->length = iomap->length;
		__entry->type = iomap->type;
		__entry->flags = iomap->flags;
		__entry->bdev = iomap->bdev ? iomap->bdev->bd_dev : 0;
	),
	TP_printk("dev %d:%d ino 0x%llx bdev %d:%d addr 0x%llx offset 0x%llx "
		  "length 0x%llx type %s flags %s",
		  MAJOR(__entry->dev), MINOR(__entry->dev),
		  __entry->ino,
		  MAJOR(__entry->bdev), MINOR(__entry->bdev),
		  __entry->addr,
		  __entry->offset,
		  __entry->length,
		  __print_symbolic(__entry->type, IOMAP_TYPE_STRINGS),
		  __print_flags(__entry->flags, "|", IOMAP_F_FLAGS_STRINGS))
)

#define DEFINE_IOMAP_EVENT(name)		\
DEFINE_EVENT(iomap_class, name,	\
	TP_PROTO(struct inode *inode, struct iomap *iomap), \
	TP_ARGS(inode, iomap))
DEFINE_IOMAP_EVENT(iomap_iter_dstmap);
DEFINE_IOMAP_EVENT(iomap_iter_srcmap);

TRACE_EVENT(iomap_iter,
	TP_PROTO(struct iomap_iter *iter, const void *ops,
		 unsigned long caller),
	TP_ARGS(iter, ops, caller),
	TP_STRUCT__entry(
		__field(dev_t, dev)
		__field(u64, ino)
		__field(loff_t, pos)
		__field(u64, length)
		__field(unsigned int, flags)
		__field(const void *, ops)
		__field(unsigned long, caller)
	),
	TP_fast_assign(
		__entry->dev = iter->inode->i_sb->s_dev;
		__entry->ino = iter->inode->i_ino;
		__entry->pos = iter->pos;
		__entry->length = iomap_length(iter);
		__entry->flags = iter->flags;
		__entry->ops = ops;
		__entry->caller = caller;
	),
	TP_printk("dev %d:%d ino 0x%llx pos 0x%llx length 0x%llx flags %s (0x%x) ops %ps caller %pS",
		  MAJOR(__entry->dev), MINOR(__entry->dev),
		   __entry->ino,
		   __entry->pos,
		   __entry->length,
		   __print_flags(__entry->flags, "|", IOMAP_FLAGS_STRINGS),
		   __entry->flags,
		   __entry->ops,
		   (void *)__entry->caller)
);

#endif /* _IOMAP_TRACE_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>