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fix: memcg: fix a crash in wb_workfn when a device disappears (5.6)
[lttng-modules.git] / include / instrumentation / events / writeback.h
CommitLineData
b7cdc182 1/* SPDX-License-Identifier: GPL-2.0-only */
b87700e3
AG		 2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM writeback
4
3bc29f0a
MD		 5#if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
6#define LTTNG_TRACE_WRITEBACK_H
b87700e3 7
3b4aafcb 8#include <lttng/tracepoint-event.h>
aa634cd1 9#include <linux/tracepoint.h>
b87700e3
AG		 10#include <linux/backing-dev.h>
11#include <linux/writeback.h>
5f4c791e 12#include <lttng/kernel-version.h>
b87700e3
AG		 13
14#ifndef _TRACE_WRITEBACK_DEF_
15#define _TRACE_WRITEBACK_DEF_
99a570c8 16
b1fdcb19
MD		 17#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,6,0) || \
18 LTTNG_KERNEL_RANGE(5,5,3, 5,6,0) || \
19 LTTNG_KERNEL_RANGE(5,4,19, 5,5,0))
20static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
21{
22 return bdi_dev_name(bdi);
23}
24#else
25static inline const char *lttng_bdi_dev_name(struct backing_dev_info *bdi)
26{
27 if (!bdi || !bdi->dev)
28 return "(unknown)";
29 return dev_name(bdi->dev);
30}
31#endif
32
70f6fc80
MJ		 33/*
34 * Vanilla kernels before 4.0 do not implement inode_to_bdi
35 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
36 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
37 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
38 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
39 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
40 */
5f4c791e 41#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0))
70f6fc80 42static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
b87700e3 43{
70f6fc80
MJ		 44 struct super_block *sb;
45
46 if (!inode)
47 return &noop_backing_dev_info;
48
49 sb = inode->i_sb;
b87700e3
AG		 50
51 if (strcmp(sb->s_type->name, "bdev") == 0)
52 return inode->i_mapping->backing_dev_info;
53
54 return sb->s_bdi;
55}
70f6fc80
MJ		 56#else
57static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
58{
59 return inode_to_bdi(inode);
60}
5f4c791e 61#endif /* #if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(4,0,0)) */
99a570c8 62
b87700e3
AG		 63#endif
64
5f4c791e 65#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0))
084a3c41
MJ		 66#define show_inode_state(state) \
67 __print_flags(state, "|", \
68 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
69 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
70 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
71 {I_NEW, "I_NEW"}, \
72 {I_WILL_FREE, "I_WILL_FREE"}, \
73 {I_FREEING, "I_FREEING"}, \
74 {I_CLEAR, "I_CLEAR"}, \
75 {I_SYNC, "I_SYNC"}, \
76 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
77 {I_REFERENCED, "I_REFERENCED"} \
78 )
5f4c791e 79#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
99a570c8
MD		 80#define show_inode_state(state) \
81 __print_flags(state, "|", \
82 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
83 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
84 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
85 {I_NEW, "I_NEW"}, \
86 {I_WILL_FREE, "I_WILL_FREE"}, \
87 {I_FREEING, "I_FREEING"}, \
88 {I_CLEAR, "I_CLEAR"}, \
89 {I_SYNC, "I_SYNC"}, \
90 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
91 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
92 {I_REFERENCED, "I_REFERENCED"} \
93 )
5f4c791e 94#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
b87700e3
AG		 95#define show_inode_state(state) \
96 __print_flags(state, "|", \
97 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
98 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
99 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
100 {I_NEW, "I_NEW"}, \
101 {I_WILL_FREE, "I_WILL_FREE"}, \
102 {I_FREEING, "I_FREEING"}, \
103 {I_CLEAR, "I_CLEAR"}, \
104 {I_SYNC, "I_SYNC"}, \
105 {I_REFERENCED, "I_REFERENCED"} \
106 )
5f4c791e 107#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0)) */
b87700e3 108
5f4c791e 109#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,0,0))
99a570c8
MD		 110
111LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
112 TP_PROTO(struct page *page, struct address_space *mapping),
113 TP_ARGS(page, mapping),
f127e61e 114 TP_FIELDS(
b1fdcb19 115 ctf_string(name, lttng_bdi_dev_name(mapping ? lttng_inode_to_bdi(mapping->host) : NULL))
f127e61e
MD		 116 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
117 ctf_integer(pgoff_t, index, page->index)
99a570c8
MD		 118 )
119)
120
121LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
122 TP_PROTO(struct inode *inode, int flags),
123 TP_ARGS(inode, flags),
f127e61e 124 TP_FIELDS(
99a570c8 125 /* may be called for files on pseudo FSes w/ unregistered bdi */
b1fdcb19 126 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
f127e61e
MD		 127 ctf_integer(unsigned long, ino, inode->i_ino)
128 ctf_integer(unsigned long, state, inode->i_state)
129 ctf_integer(unsigned long, flags, flags)
99a570c8
MD		 130 )
131)
132#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
133LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
134 TP_PROTO(struct inode *inode, int flags), \
135 TP_ARGS(inode, flags))
136LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
137LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
138LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
139
140LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
141 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
142 TP_ARGS(inode, wbc),
f127e61e 143 TP_FIELDS(
b1fdcb19 144 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
f127e61e
MD		 145 ctf_integer(unsigned long, ino, inode->i_ino)
146 ctf_integer(int, sync_mode, wbc->sync_mode)
99a570c8
MD		 147 )
148)
149
150#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
151LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
152 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
153 TP_ARGS(inode, wbc))
154LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
155LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
156
5f4c791e 157#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
99a570c8 158
aa634cd1
JD		 159LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
160 TP_PROTO(struct page *page, struct address_space *mapping),
161 TP_ARGS(page, mapping),
f127e61e 162 TP_FIELDS(
b1fdcb19 163 ctf_string(name, lttng_bdi_dev_name(mapping ? mapping->backing_dev_info : NULL))
f127e61e
MD		 164 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
165 ctf_integer(pgoff_t, index, page->index)
aa634cd1
JD		 166 )
167)
168
169LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
170 TP_PROTO(struct inode *inode, int flags),
171 TP_ARGS(inode, flags),
f127e61e 172 TP_FIELDS(
aa634cd1 173 /* may be called for files on pseudo FSes w/ unregistered bdi */
b1fdcb19 174 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
f127e61e
MD		 175 ctf_integer(unsigned long, ino, inode->i_ino)
176 ctf_integer(unsigned long, flags, flags)
aa634cd1
JD		 177 )
178)
179#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
180LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
181 TP_PROTO(struct inode *inode, int flags), \
182 TP_ARGS(inode, flags))
183LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
184LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
185
186LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
187 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
188 TP_ARGS(inode, wbc),
f127e61e 189 TP_FIELDS(
b1fdcb19 190 ctf_string(name, lttng_bdi_dev_name(inode->i_mapping->backing_dev_info))
f127e61e
MD		 191 ctf_integer(unsigned long, ino, inode->i_ino)
192 ctf_integer(int, sync_mode, wbc->sync_mode)
aa634cd1
JD		 193 )
194)
195
196#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
197LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
198 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
199 TP_ARGS(inode, wbc))
200LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
201LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
99a570c8 202
5f4c791e 203#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
aa634cd1 204
5f4c791e 205#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
a40cb509
MD		 206
207LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
208 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
209 TP_ARGS(wb, work),
210 TP_FIELDS(
b1fdcb19 211 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
a40cb509
MD		 212 )
213)
214
b1fdcb19 215#else
99a570c8 216
3bc29f0a 217LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
b87700e3
AG		 218 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
219 TP_ARGS(bdi, work),
f127e61e 220 TP_FIELDS(
b1fdcb19 221 ctf_string(name, lttng_bdi_dev_name(bdi))
b87700e3 222 )
b87700e3 223)
99a570c8 224
b1fdcb19 225#endif /* #else if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
99a570c8 226
5f4c791e 227#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
a40cb509
MD		 228
229#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
230LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
231 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
232 TP_ARGS(wb, work))
233
5f4c791e 234#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
a40cb509 235
3bc29f0a
MD		 236#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
237LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
b87700e3
AG		 238 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
239 TP_ARGS(bdi, work))
a40cb509 240
5f4c791e 241#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
a40cb509 242
3bc29f0a
MD		 243LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
244LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
245LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
5f4c791e 246#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 247LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
248LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
249LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
b87700e3
AG		 250#endif
251
3bc29f0a 252LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
b87700e3
AG		 253 TP_PROTO(long pages_written),
254 TP_ARGS(pages_written),
f127e61e
MD		 255 TP_FIELDS(
256 ctf_integer(long, pages, pages_written)
257 )
b87700e3
AG		 258)
259
5f4c791e 260#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
a40cb509
MD		 261
262LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
263 TP_PROTO(struct bdi_writeback *wb),
264 TP_ARGS(wb),
265 TP_FIELDS(
b1fdcb19 266 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
a40cb509
MD		 267 )
268)
269
270#undef DEFINE_WRITEBACK_EVENT
271#define DEFINE_WRITEBACK_EVENT(name) \
272LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
273 TP_PROTO(struct bdi_writeback *wb), \
274 TP_ARGS(wb))
275
276#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
277LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
278 TP_PROTO(struct bdi_writeback *wb), \
279 TP_ARGS(wb))
280
281LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
282 TP_PROTO(struct backing_dev_info *bdi),
283 TP_ARGS(bdi),
284 TP_FIELDS(
b1fdcb19 285 ctf_string(name, lttng_bdi_dev_name(bdi))
a40cb509
MD		 286 )
287)
288
5f4c791e 289#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
a40cb509 290
3bc29f0a 291LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
b87700e3
AG		 292 TP_PROTO(struct backing_dev_info *bdi),
293 TP_ARGS(bdi),
f127e61e 294 TP_FIELDS(
b1fdcb19 295 ctf_string(name, lttng_bdi_dev_name(bdi))
b87700e3
AG		 296 )
297)
a40cb509 298
59fecd6c 299#undef DEFINE_WRITEBACK_EVENT
b87700e3 300#define DEFINE_WRITEBACK_EVENT(name) \
3bc29f0a 301LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
b87700e3
AG		 302 TP_PROTO(struct backing_dev_info *bdi), \
303 TP_ARGS(bdi))
304
9cf29d3e 305#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
3bc29f0a 306LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
9cf29d3e
MD		 307 TP_PROTO(struct backing_dev_info *bdi), \
308 TP_ARGS(bdi))
309
a40cb509
MD		 310DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
311
5f4c791e 312#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
a40cb509 313
b87700e3 314DEFINE_WRITEBACK_EVENT(writeback_nowork)
b87700e3 315DEFINE_WRITEBACK_EVENT(writeback_wake_background)
b87700e3
AG		 316DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
317DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
b87700e3
AG		 318DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
319DEFINE_WRITEBACK_EVENT(writeback_thread_start)
320DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
321#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
9cf29d3e
MD		 322DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
323DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
324
3bc29f0a 325LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
b87700e3 326
9cf29d3e 327 writeback_balance_dirty_written,
b87700e3
AG		 328
329 TP_PROTO(struct backing_dev_info *bdi, int written),
330
331 TP_ARGS(bdi, written),
332
f127e61e 333 TP_FIELDS(
b1fdcb19 334 ctf_string(name, lttng_bdi_dev_name(bdi))
f127e61e 335 ctf_integer(int, written, written)
b87700e3
AG		 336 )
337)
338#endif
339
3bc29f0a 340LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
b87700e3
AG		 341 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
342 TP_ARGS(wbc, bdi),
f127e61e 343 TP_FIELDS(
b1fdcb19 344 ctf_string(name, lttng_bdi_dev_name(bdi))
f127e61e
MD		 345 ctf_integer(long, nr_to_write, wbc->nr_to_write)
346 ctf_integer(long, pages_skipped, wbc->pages_skipped)
347 ctf_integer(int, sync_mode, wbc->sync_mode)
348 ctf_integer(int, for_kupdate, wbc->for_kupdate)
349 ctf_integer(int, for_background, wbc->for_background)
350 ctf_integer(int, for_reclaim, wbc->for_reclaim)
351 ctf_integer(int, range_cyclic, wbc->range_cyclic)
5f4c791e 352#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
f127e61e
MD		 353 ctf_integer(int, more_io, wbc->more_io)
354 ctf_integer(unsigned long, older_than_this,
355 wbc->older_than_this ? *wbc->older_than_this : 0)
b87700e3 356#endif
f127e61e
MD		 357 ctf_integer(long, range_start, (long) wbc->range_start)
358 ctf_integer(long, range_end, (long) wbc->range_end)
359 )
b87700e3
AG		 360)
361
9cf29d3e 362#undef DEFINE_WBC_EVENT
3bc29f0a
MD		 363#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
364LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
b87700e3
AG		 365 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
366 TP_ARGS(wbc, bdi))
5f4c791e 367#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 368LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
369LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
370LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
371LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
372LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
373LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
b87700e3 374#endif
3bc29f0a 375LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
b87700e3 376
5f4c791e 377#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,9,0) || \
b6af46d1
MJ		 378 LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \
379 LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \
380 LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \
381 LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \
382 LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \
da139c48
MJ		 383 LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \
384 LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0))
817e02f9
MJ		 385LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
386 TP_PROTO(struct bdi_writeback *wb,
387 struct wb_writeback_work *work,
388 unsigned long dirtied_before,
389 int moved),
390 TP_ARGS(wb, work, dirtied_before, moved),
391 TP_FIELDS(
b1fdcb19 392 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
817e02f9
MJ		 393 ctf_integer(unsigned long, older, dirtied_before)
394 ctf_integer(int, moved, moved)
395 )
396)
5f4c791e 397#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
3bc29f0a 398LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
b87700e3 399 TP_PROTO(struct bdi_writeback *wb,
b87700e3 400 struct wb_writeback_work *work,
b87700e3 401 int moved),
b87700e3 402 TP_ARGS(wb, work, moved),
817e02f9 403 TP_FIELDS(
b1fdcb19 404 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
817e02f9
MJ		 405 ctf_integer(int, moved, moved)
406 )
407)
5f4c791e 408#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
817e02f9
MJ		 409LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
410 TP_PROTO(struct bdi_writeback *wb,
411 unsigned long *older_than_this,
412 int moved),
b87700e3 413 TP_ARGS(wb, older_than_this, moved),
f127e61e 414 TP_FIELDS(
b1fdcb19 415 ctf_string(name, lttng_bdi_dev_name(wb->bdi))
f127e61e
MD		 416 ctf_integer(unsigned long, older,
417 older_than_this ? *older_than_this : 0)
418 ctf_integer(long, age,
419 older_than_this ?
420 (jiffies - *older_than_this) * 1000 / HZ
421 : -1)
f127e61e 422 ctf_integer(int, moved, moved)
b87700e3 423 )
b87700e3 424)
817e02f9 425#endif
b87700e3 426
5f4c791e 427#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,8,0))
0b1facd4
MJ		 428LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
429
430 writeback_global_dirty_state,
431
432 TP_PROTO(unsigned long background_thresh,
433 unsigned long dirty_thresh
434 ),
435
436 TP_ARGS(background_thresh,
437 dirty_thresh
438 ),
439
440 TP_FIELDS(
441 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
442 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
443 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
444 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
445 ctf_integer(unsigned long, background_thresh, background_thresh)
446 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
447 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
448 )
449)
5f4c791e 450#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
7ceeb15d
MJ		 451LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
452
453 writeback_global_dirty_state,
454
455 TP_PROTO(unsigned long background_thresh,
456 unsigned long dirty_thresh
457 ),
458
459 TP_ARGS(background_thresh,
460 dirty_thresh
461 ),
462
463 TP_FIELDS(
464 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
465 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
466 ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
467 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
468 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
469 ctf_integer(unsigned long, background_thresh, background_thresh)
470 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
471 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
472 )
473)
5f4c791e 474#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
3bc29f0a 475LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
9cf29d3e
MD		 476
477 writeback_global_dirty_state,
b87700e3
AG		 478
479 TP_PROTO(unsigned long background_thresh,
480 unsigned long dirty_thresh
481 ),
482
483 TP_ARGS(background_thresh,
484 dirty_thresh
485 ),
486
f127e61e
MD		 487 TP_FIELDS(
488 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
489 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
490 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
491 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
492 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
493 ctf_integer(unsigned long, background_thresh, background_thresh)
494 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
495 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
b87700e3
AG		 496 )
497)
498#endif
499
5f4c791e 500#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
b87700e3
AG		 501
502#define KBps(x) ((x) << (PAGE_SHIFT - 10))
503
5f4c791e 504#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
a40cb509
MD		 505
506LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
507
508 writeback_bdi_dirty_ratelimit,
509
510 TP_PROTO(struct bdi_writeback *wb,
511 unsigned long dirty_rate,
512 unsigned long task_ratelimit),
513
514 TP_ARGS(wb, dirty_rate, task_ratelimit),
515
516 TP_FIELDS(
b1fdcb19 517 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
a40cb509
MD		 518 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
519 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
520 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
521 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
522 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
523 ctf_integer(unsigned long, balanced_dirty_ratelimit,
524 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
525 )
526)
527
5f4c791e 528#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
c7d89a6d 529
3bc29f0a 530LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
9cf29d3e
MD		 531
532 writeback_bdi_dirty_ratelimit,
b87700e3
AG		 533
534 TP_PROTO(struct backing_dev_info *bdi,
535 unsigned long dirty_rate,
536 unsigned long task_ratelimit),
537
538 TP_ARGS(bdi, dirty_rate, task_ratelimit),
539
f127e61e 540 TP_FIELDS(
b1fdcb19 541 ctf_string(bdi, lttng_bdi_dev_name(bdi))
902947a4
MJ		 542 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
543 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
f127e61e 544 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
902947a4 545 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
f127e61e 546 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
902947a4
MJ		 547 ctf_integer(unsigned long, balanced_dirty_ratelimit,
548 KBps(bdi->wb.balanced_dirty_ratelimit))
c7d89a6d
MD		 549 )
550)
551
5f4c791e 552#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
c7d89a6d
MD		 553
554LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
555
556 writeback_bdi_dirty_ratelimit,
557
558 TP_PROTO(struct backing_dev_info *bdi,
559 unsigned long dirty_rate,
560 unsigned long task_ratelimit),
561
562 TP_ARGS(bdi, dirty_rate, task_ratelimit),
563
564 TP_FIELDS(
b1fdcb19 565 ctf_string(bdi, lttng_bdi_dev_name(bdi))
c7d89a6d
MD		 566 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
567 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
568 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
569 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
570 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
f127e61e 571 ctf_integer(unsigned long, balanced_dirty_ratelimit,
b87700e3 572 KBps(bdi->balanced_dirty_ratelimit))
b87700e3
AG		 573 )
574)
575
5f4c791e 576#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
c7d89a6d 577
5f4c791e 578#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0))
a40cb509
MD		 579
580LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
581
582 writeback_balance_dirty_pages,
583
584 TP_PROTO(struct bdi_writeback *wb,
585 unsigned long thresh,
586 unsigned long bg_thresh,
587 unsigned long dirty,
588 unsigned long bdi_thresh,
589 unsigned long bdi_dirty,
590 unsigned long dirty_ratelimit,
591 unsigned long task_ratelimit,
592 unsigned long dirtied,
593 unsigned long period,
594 long pause,
595 unsigned long start_time),
596
597 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
598 dirty_ratelimit, task_ratelimit,
599 dirtied, period, pause, start_time
600 ),
601
602 TP_FIELDS(
b1fdcb19 603 ctf_string(bdi, lttng_bdi_dev_name(wb->bdi))
a40cb509
MD		 604 ctf_integer(unsigned long, limit, global_dirty_limit)
605 ctf_integer(unsigned long, setpoint,
606 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
607 ctf_integer(unsigned long, dirty, dirty)
608 ctf_integer(unsigned long, bdi_setpoint,
609 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
610 bdi_thresh / (thresh + 1))
611 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
612 ctf_integer(unsigned long, dirty_ratelimit,
613 KBps(dirty_ratelimit))
614 ctf_integer(unsigned long, task_ratelimit,
615 KBps(task_ratelimit))
616 ctf_integer(unsigned int, dirtied, dirtied)
617 ctf_integer(unsigned int, dirtied_pause,
618 current->nr_dirtied_pause)
619 ctf_integer(unsigned long, paused,
620 (jiffies - start_time) * 1000 / HZ)
621 ctf_integer(long, pause, pause * 1000 / HZ)
622 ctf_integer(unsigned long, period,
623 period * 1000 / HZ)
624 ctf_integer(long, think,
625 current->dirty_paused_when == 0 ? 0 :
626 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
627 )
628)
629
5f4c791e 630#else /* #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
a40cb509 631
3bc29f0a 632LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
9cf29d3e
MD		 633
634 writeback_balance_dirty_pages,
b87700e3
AG		 635
636 TP_PROTO(struct backing_dev_info *bdi,
637 unsigned long thresh,
638 unsigned long bg_thresh,
639 unsigned long dirty,
640 unsigned long bdi_thresh,
641 unsigned long bdi_dirty,
642 unsigned long dirty_ratelimit,
643 unsigned long task_ratelimit,
644 unsigned long dirtied,
5f4c791e 645#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
b87700e3
AG		 646 unsigned long period,
647#endif
648 long pause,
649 unsigned long start_time),
650
651 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
652 dirty_ratelimit, task_ratelimit,
5f4c791e 653#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
f127e61e 654 dirtied, period, pause, start_time
b87700e3 655#else
f127e61e 656 dirtied, pause, start_time
b87700e3
AG		 657#endif
658 ),
659
f127e61e 660 TP_FIELDS(
b1fdcb19 661 ctf_string(bdi, lttng_bdi_dev_name(bdi))
f127e61e
MD		 662 ctf_integer(unsigned long, limit, global_dirty_limit)
663 ctf_integer(unsigned long, setpoint,
b87700e3 664 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
f127e61e
MD		 665 ctf_integer(unsigned long, dirty, dirty)
666 ctf_integer(unsigned long, bdi_setpoint,
b87700e3 667 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
f127e61e
MD		 668 bdi_thresh / (thresh + 1))
669 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
670 ctf_integer(unsigned long, dirty_ratelimit,
671 KBps(dirty_ratelimit))
672 ctf_integer(unsigned long, task_ratelimit,
673 KBps(task_ratelimit))
674 ctf_integer(unsigned int, dirtied, dirtied)
675 ctf_integer(unsigned int, dirtied_pause,
676 current->nr_dirtied_pause)
677 ctf_integer(unsigned long, paused,
678 (jiffies - start_time) * 1000 / HZ)
679 ctf_integer(long, pause, pause * 1000 / HZ)
5f4c791e 680#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
f127e61e
MD		 681 ctf_integer(unsigned long, period,
682 period * 1000 / HZ)
683 ctf_integer(long, think,
684 current->dirty_paused_when == 0 ? 0 :
685 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
b87700e3 686#endif
f127e61e 687 )
b87700e3 688)
5f4c791e 689#endif /* #else #if LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
a40cb509 690
5f4c791e 691#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) */
b87700e3 692
5f4c791e 693#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,5,0))
3bc29f0a 694LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
b87700e3
AG		 695
696 TP_PROTO(struct inode *inode),
697 TP_ARGS(inode),
698
f127e61e 699 TP_FIELDS(
b1fdcb19 700 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
f127e61e
MD		 701 ctf_integer(unsigned long, ino, inode->i_ino)
702 ctf_integer(unsigned long, state, inode->i_state)
703 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
b87700e3
AG		 704 )
705)
706#endif
707
3bc29f0a 708LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
b87700e3
AG		 709
710 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
711
712 TP_ARGS(usec_timeout, usec_delayed),
713
f127e61e
MD		 714 TP_FIELDS(
715 ctf_integer(unsigned int, usec_timeout, usec_timeout)
716 ctf_integer(unsigned int, usec_delayed, usec_delayed)
717 )
b87700e3
AG		 718)
719
3bc29f0a 720LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
b87700e3
AG		 721
722 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
723
724 TP_ARGS(usec_timeout, usec_delayed)
725)
726
3bc29f0a 727LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
b87700e3
AG		 728
729 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
730
731 TP_ARGS(usec_timeout, usec_delayed)
732)
b87700e3 733
5f4c791e 734#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,1,0))
3bc29f0a 735LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
b87700e3
AG		 736
737 TP_PROTO(struct inode *inode,
738 struct writeback_control *wbc,
739 unsigned long nr_to_write
740 ),
741
742 TP_ARGS(inode, wbc, nr_to_write),
743
f127e61e 744 TP_FIELDS(
b1fdcb19 745 ctf_string(name, lttng_bdi_dev_name(lttng_inode_to_bdi(inode)))
f127e61e
MD		 746 ctf_integer(unsigned long, ino, inode->i_ino)
747 ctf_integer(unsigned long, state, inode->i_state)
748 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
749 ctf_integer(unsigned long, writeback_index,
750 inode->i_mapping->writeback_index)
751 ctf_integer(long, nr_to_write, nr_to_write)
752 ctf_integer(unsigned long, wrote,
753 nr_to_write - wbc->nr_to_write)
b87700e3
AG		 754 )
755)
756
5f4c791e 757#if (LTTNG_LINUX_VERSION_CODE < LTTNG_KERNEL_VERSION(3,5,0))
3bc29f0a 758LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
b87700e3
AG		 759 TP_PROTO(struct inode *inode,
760 struct writeback_control *wbc,
761 unsigned long nr_to_write),
762 TP_ARGS(inode, wbc, nr_to_write)
763)
764#endif
765
3bc29f0a 766LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
b87700e3
AG		 767 TP_PROTO(struct inode *inode,
768 struct writeback_control *wbc,
769 unsigned long nr_to_write),
770 TP_ARGS(inode, wbc, nr_to_write)
771)
772#endif
773
3bc29f0a 774#endif /* LTTNG_TRACE_WRITEBACK_H */
b87700e3
AG		 775
776/* This part must be outside protection */
3b4aafcb 777#include <lttng/define_trace.h>
LTTng 2.0/0.x modules
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