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 
16 DECLARE_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 
49 DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
50 	TP_PROTO(struct folio *folio),
51 	TP_ARGS(folio)
52 	);
53 
54 DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
55 	TP_PROTO(struct folio *folio),
56 	TP_ARGS(folio)
57 	);
58 
59 DECLARE_EVENT_CLASS(mm_filemap_op_page_cache_range,
60 
61 	TP_PROTO(
62 		struct address_space *mapping,
63 		pgoff_t index,
64 		pgoff_t last_index
65 	),
66 
67 	TP_ARGS(mapping, index, last_index),
68 
69 	TP_STRUCT__entry(
70 		__field(unsigned long, i_ino)
71 		__field(dev_t, s_dev)
72 		__field(unsigned long, index)
73 		__field(unsigned long, last_index)
74 	),
75 
76 	TP_fast_assign(
77 		__entry->i_ino = mapping->host->i_ino;
78 		if (mapping->host->i_sb)
79 			__entry->s_dev =
80 				mapping->host->i_sb->s_dev;
81 		else
82 			__entry->s_dev = mapping->host->i_rdev;
83 		__entry->index = index;
84 		__entry->last_index = last_index;
85 	),
86 
87 	TP_printk(
88 		"dev=%d:%d ino=%lx ofs=%lld-%lld",
89 		MAJOR(__entry->s_dev),
90 		MINOR(__entry->s_dev), __entry->i_ino,
91 		((loff_t)__entry->index) << PAGE_SHIFT,
92 		((((loff_t)__entry->last_index + 1) << PAGE_SHIFT) - 1)
93 	)
94 );
95 
96 DEFINE_EVENT(mm_filemap_op_page_cache_range, mm_filemap_get_pages,
97 	TP_PROTO(
98 		struct address_space *mapping,
99 		pgoff_t index,
100 		pgoff_t last_index
101 	),
102 	TP_ARGS(mapping, index, last_index)
103 );
104 
105 DEFINE_EVENT(mm_filemap_op_page_cache_range, mm_filemap_map_pages,
106 	TP_PROTO(
107 		struct address_space *mapping,
108 		pgoff_t index,
109 		pgoff_t last_index
110 	),
111 	TP_ARGS(mapping, index, last_index)
112 );
113 
114 TRACE_EVENT(mm_filemap_fault,
115 	TP_PROTO(struct address_space *mapping, pgoff_t index),
116 
117 	TP_ARGS(mapping, index),
118 
119 	TP_STRUCT__entry(
120 		__field(unsigned long, i_ino)
121 		__field(dev_t, s_dev)
122 		__field(unsigned long, index)
123 	),
124 
125 	TP_fast_assign(
126 		__entry->i_ino = mapping->host->i_ino;
127 		if (mapping->host->i_sb)
128 			__entry->s_dev =
129 				mapping->host->i_sb->s_dev;
130 		else
131 			__entry->s_dev = mapping->host->i_rdev;
132 		__entry->index = index;
133 	),
134 
135 	TP_printk(
136 		"dev=%d:%d ino=%lx ofs=%lld",
137 		MAJOR(__entry->s_dev),
138 		MINOR(__entry->s_dev), __entry->i_ino,
139 		((loff_t)__entry->index) << PAGE_SHIFT
140 	)
141 );
142 
143 TRACE_EVENT(filemap_set_wb_err,
144 		TP_PROTO(struct address_space *mapping, errseq_t eseq),
145 
146 		TP_ARGS(mapping, eseq),
147 
148 		TP_STRUCT__entry(
149 			__field(unsigned long, i_ino)
150 			__field(dev_t, s_dev)
151 			__field(errseq_t, errseq)
152 		),
153 
154 		TP_fast_assign(
155 			__entry->i_ino = mapping->host->i_ino;
156 			__entry->errseq = eseq;
157 			if (mapping->host->i_sb)
158 				__entry->s_dev = mapping->host->i_sb->s_dev;
159 			else
160 				__entry->s_dev = mapping->host->i_rdev;
161 		),
162 
163 		TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
164 			MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
165 			__entry->i_ino, __entry->errseq)
166 );
167 
168 TRACE_EVENT(file_check_and_advance_wb_err,
169 		TP_PROTO(struct file *file, errseq_t old),
170 
171 		TP_ARGS(file, old),
172 
173 		TP_STRUCT__entry(
174 			__field(struct file *, file)
175 			__field(unsigned long, i_ino)
176 			__field(dev_t, s_dev)
177 			__field(errseq_t, old)
178 			__field(errseq_t, new)
179 		),
180 
181 		TP_fast_assign(
182 			__entry->file = file;
183 			__entry->i_ino = file->f_mapping->host->i_ino;
184 			if (file->f_mapping->host->i_sb)
185 				__entry->s_dev =
186 					file->f_mapping->host->i_sb->s_dev;
187 			else
188 				__entry->s_dev =
189 					file->f_mapping->host->i_rdev;
190 			__entry->old = old;
191 			__entry->new = file->f_wb_err;
192 		),
193 
194 		TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
195 			__entry->file, MAJOR(__entry->s_dev),
196 			MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
197 			__entry->new)
198 );
199 #endif /* _TRACE_FILEMAP_H */
200 
201 /* This part must be outside protection */
202 #include <trace/define_trace.h>
203