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fix: writeback: Fix sync livelock due to b_dirty_time processing (v5.9)
[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>
12#include <linux/version.h>
13
14#ifndef _TRACE_WRITEBACK_DEF_
15#define _TRACE_WRITEBACK_DEF_
99a570c8 16
70f6fc80
MJ		 17/*
18 * Vanilla kernels before 4.0 do not implement inode_to_bdi
19 * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
20 * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
21 * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
22 * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
23 * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
24 */
25#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
26static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
b87700e3 27{
70f6fc80
MJ		 28 struct super_block *sb;
29
30 if (!inode)
31 return &noop_backing_dev_info;
32
33 sb = inode->i_sb;
b87700e3
AG		 34
35 if (strcmp(sb->s_type->name, "bdev") == 0)
36 return inode->i_mapping->backing_dev_info;
37
38 return sb->s_bdi;
39}
70f6fc80
MJ		 40#else
41static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
42{
43 return inode_to_bdi(inode);
44}
99a570c8
MD		 45#endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
46
b87700e3
AG		 47#endif
48
084a3c41
MJ		 49#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0))
50#define show_inode_state(state) \
51 __print_flags(state, "|", \
52 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
53 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
54 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
55 {I_NEW, "I_NEW"}, \
56 {I_WILL_FREE, "I_WILL_FREE"}, \
57 {I_FREEING, "I_FREEING"}, \
58 {I_CLEAR, "I_CLEAR"}, \
59 {I_SYNC, "I_SYNC"}, \
60 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
61 {I_REFERENCED, "I_REFERENCED"} \
62 )
63#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
99a570c8
MD		 64#define show_inode_state(state) \
65 __print_flags(state, "|", \
66 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
67 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
68 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
69 {I_NEW, "I_NEW"}, \
70 {I_WILL_FREE, "I_WILL_FREE"}, \
71 {I_FREEING, "I_FREEING"}, \
72 {I_CLEAR, "I_CLEAR"}, \
73 {I_SYNC, "I_SYNC"}, \
74 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
75 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
76 {I_REFERENCED, "I_REFERENCED"} \
77 )
78#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
b87700e3
AG		 79#define show_inode_state(state) \
80 __print_flags(state, "|", \
81 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
82 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
83 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
84 {I_NEW, "I_NEW"}, \
85 {I_WILL_FREE, "I_WILL_FREE"}, \
86 {I_FREEING, "I_FREEING"}, \
87 {I_CLEAR, "I_CLEAR"}, \
88 {I_SYNC, "I_SYNC"}, \
89 {I_REFERENCED, "I_REFERENCED"} \
90 )
99a570c8 91#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
b87700e3 92
99a570c8
MD		 93#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
94
95LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
96 TP_PROTO(struct page *page, struct address_space *mapping),
97 TP_ARGS(page, mapping),
f127e61e
MD		 98 TP_FIELDS(
99 ctf_array_text(char, name,
70f6fc80 100 mapping ? dev_name(lttng_inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
f127e61e
MD		 101 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
102 ctf_integer(pgoff_t, index, page->index)
99a570c8
MD		 103 )
104)
105
106LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
107 TP_PROTO(struct inode *inode, int flags),
108 TP_ARGS(inode, flags),
f127e61e 109 TP_FIELDS(
99a570c8 110 /* may be called for files on pseudo FSes w/ unregistered bdi */
f127e61e 111 ctf_array_text(char, name,
70f6fc80
MJ		 112 lttng_inode_to_bdi(inode)->dev ?
113 dev_name(lttng_inode_to_bdi(inode)->dev) : "(unknown)", 32)
f127e61e
MD		 114 ctf_integer(unsigned long, ino, inode->i_ino)
115 ctf_integer(unsigned long, state, inode->i_state)
116 ctf_integer(unsigned long, flags, flags)
99a570c8
MD		 117 )
118)
119#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
120LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
121 TP_PROTO(struct inode *inode, int flags), \
122 TP_ARGS(inode, flags))
123LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
124LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
125LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
126
127LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
128 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
129 TP_ARGS(inode, wbc),
f127e61e
MD		 130 TP_FIELDS(
131 ctf_array_text(char, name,
70f6fc80 132 dev_name(lttng_inode_to_bdi(inode)->dev), 32)
f127e61e
MD		 133 ctf_integer(unsigned long, ino, inode->i_ino)
134 ctf_integer(int, sync_mode, wbc->sync_mode)
99a570c8
MD		 135 )
136)
137
138#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
139LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
140 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
141 TP_ARGS(inode, wbc))
142LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
143LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
144
145#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
146
aa634cd1
JD		 147LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
148 TP_PROTO(struct page *page, struct address_space *mapping),
149 TP_ARGS(page, mapping),
f127e61e
MD		 150 TP_FIELDS(
151 ctf_array_text(char, name,
aa634cd1 152 mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32)
f127e61e
MD		 153 ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
154 ctf_integer(pgoff_t, index, page->index)
aa634cd1
JD		 155 )
156)
157
158LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
159 TP_PROTO(struct inode *inode, int flags),
160 TP_ARGS(inode, flags),
f127e61e 161 TP_FIELDS(
aa634cd1 162 /* may be called for files on pseudo FSes w/ unregistered bdi */
f127e61e 163 ctf_array_text(char, name,
aa634cd1 164 inode->i_mapping->backing_dev_info->dev ?
f127e61e
MD		 165 dev_name(inode->i_mapping->backing_dev_info->dev)
166 : "(unknown)", 32)
167 ctf_integer(unsigned long, ino, inode->i_ino)
168 ctf_integer(unsigned long, flags, flags)
aa634cd1
JD		 169 )
170)
171#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
172LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
173 TP_PROTO(struct inode *inode, int flags), \
174 TP_ARGS(inode, flags))
175LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
176LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
177
178LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
179 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
180 TP_ARGS(inode, wbc),
f127e61e
MD		 181 TP_FIELDS(
182 ctf_array_text(char, name,
aa634cd1 183 dev_name(inode->i_mapping->backing_dev_info->dev), 32)
f127e61e
MD		 184 ctf_integer(unsigned long, ino, inode->i_ino)
185 ctf_integer(int, sync_mode, wbc->sync_mode)
aa634cd1
JD		 186 )
187)
188
189#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
190LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
191 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
192 TP_ARGS(inode, wbc))
193LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
194LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
99a570c8 195
aa634cd1
JD		 196#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
197
a40cb509
MD		 198#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
199
200LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
201 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
202 TP_ARGS(wb, work),
203 TP_FIELDS(
204 ctf_array_text(char, name, wb->bdi->dev ? dev_name(wb->bdi->dev) :
205 "(unknown)", 32)
206 )
207)
208
209#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
99a570c8
MD		 210
211LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
212 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
213 TP_ARGS(bdi, work),
f127e61e
MD		 214 TP_FIELDS(
215 ctf_array_text(char, name, bdi->dev ? dev_name(bdi->dev) :
99a570c8 216 "(unknown)", 32)
99a570c8
MD		 217 )
218)
219
220#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
221
3bc29f0a 222LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
b87700e3
AG		 223 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
224 TP_ARGS(bdi, work),
f127e61e
MD		 225 TP_FIELDS(
226 ctf_array_text(char, name,
227 dev_name(bdi->dev ? bdi->dev :
b87700e3 228 default_backing_dev_info.dev), 32)
b87700e3 229 )
b87700e3 230)
99a570c8
MD		 231
232#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
233
a40cb509
MD		 234#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
235
236#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
237LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
238 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
239 TP_ARGS(wb, work))
240
241#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
242
3bc29f0a
MD		 243#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
244LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
b87700e3
AG		 245 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
246 TP_ARGS(bdi, work))
a40cb509
MD		 247
248#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
249
3bc29f0a
MD		 250LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
251LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
252LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
b87700e3 253#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 254LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
255LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
256LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
b87700e3
AG		 257#endif
258
3bc29f0a 259LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
b87700e3
AG		 260 TP_PROTO(long pages_written),
261 TP_ARGS(pages_written),
f127e61e
MD		 262 TP_FIELDS(
263 ctf_integer(long, pages, pages_written)
264 )
b87700e3
AG		 265)
266
a40cb509
MD		 267#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
268
269LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
270 TP_PROTO(struct bdi_writeback *wb),
271 TP_ARGS(wb),
272 TP_FIELDS(
273 ctf_array_text(char, name,
274 dev_name(wb->bdi->dev), 32)
275 )
276)
277
278#undef DEFINE_WRITEBACK_EVENT
279#define DEFINE_WRITEBACK_EVENT(name) \
280LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
281 TP_PROTO(struct bdi_writeback *wb), \
282 TP_ARGS(wb))
283
284#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
285LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
286 TP_PROTO(struct bdi_writeback *wb), \
287 TP_ARGS(wb))
288
289LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
290 TP_PROTO(struct backing_dev_info *bdi),
291 TP_ARGS(bdi),
292 TP_FIELDS(
293 ctf_array_text(char, name,
294 dev_name(bdi->dev), 32)
295 )
296)
297
298#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
299
3bc29f0a 300LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
b87700e3
AG		 301 TP_PROTO(struct backing_dev_info *bdi),
302 TP_ARGS(bdi),
f127e61e
MD		 303 TP_FIELDS(
304 ctf_array_text(char, name,
305 dev_name(bdi->dev), 32)
b87700e3
AG		 306 )
307)
a40cb509 308
59fecd6c 309#undef DEFINE_WRITEBACK_EVENT
b87700e3 310#define DEFINE_WRITEBACK_EVENT(name) \
3bc29f0a 311LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
b87700e3
AG		 312 TP_PROTO(struct backing_dev_info *bdi), \
313 TP_ARGS(bdi))
314
9cf29d3e 315#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
3bc29f0a 316LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
9cf29d3e
MD		 317 TP_PROTO(struct backing_dev_info *bdi), \
318 TP_ARGS(bdi))
319
a40cb509
MD		 320DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
321
322#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
323
b87700e3 324DEFINE_WRITEBACK_EVENT(writeback_nowork)
b87700e3 325DEFINE_WRITEBACK_EVENT(writeback_wake_background)
b87700e3
AG		 326DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
327DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
b87700e3
AG		 328DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
329DEFINE_WRITEBACK_EVENT(writeback_thread_start)
330DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
331#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
9cf29d3e
MD		 332DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
333DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
334
3bc29f0a 335LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
b87700e3 336
9cf29d3e 337 writeback_balance_dirty_written,
b87700e3
AG		 338
339 TP_PROTO(struct backing_dev_info *bdi, int written),
340
341 TP_ARGS(bdi, written),
342
f127e61e
MD		 343 TP_FIELDS(
344 ctf_array_text(char, name, dev_name(bdi->dev), 32)
345 ctf_integer(int, written, written)
b87700e3
AG		 346 )
347)
348#endif
349
3bc29f0a 350LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
b87700e3
AG		 351 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
352 TP_ARGS(wbc, bdi),
f127e61e
MD		 353 TP_FIELDS(
354 ctf_array_text(char, name, dev_name(bdi->dev), 32)
355 ctf_integer(long, nr_to_write, wbc->nr_to_write)
356 ctf_integer(long, pages_skipped, wbc->pages_skipped)
357 ctf_integer(int, sync_mode, wbc->sync_mode)
358 ctf_integer(int, for_kupdate, wbc->for_kupdate)
359 ctf_integer(int, for_background, wbc->for_background)
360 ctf_integer(int, for_reclaim, wbc->for_reclaim)
361 ctf_integer(int, range_cyclic, wbc->range_cyclic)
b87700e3 362#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
f127e61e
MD		 363 ctf_integer(int, more_io, wbc->more_io)
364 ctf_integer(unsigned long, older_than_this,
365 wbc->older_than_this ? *wbc->older_than_this : 0)
b87700e3 366#endif
f127e61e
MD		 367 ctf_integer(long, range_start, (long) wbc->range_start)
368 ctf_integer(long, range_end, (long) wbc->range_end)
369 )
b87700e3
AG		 370)
371
9cf29d3e 372#undef DEFINE_WBC_EVENT
3bc29f0a
MD		 373#define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
374LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
b87700e3
AG		 375 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
376 TP_ARGS(wbc, bdi))
377#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
3bc29f0a
MD		 378LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
379LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
380LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
381LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
382LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
383LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
b87700e3 384#endif
3bc29f0a 385LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
b87700e3 386
817e02f9
MJ		 387#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0))
388LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
389 TP_PROTO(struct bdi_writeback *wb,
390 struct wb_writeback_work *work,
391 unsigned long dirtied_before,
392 int moved),
393 TP_ARGS(wb, work, dirtied_before, moved),
394 TP_FIELDS(
395 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
396 ctf_integer(unsigned long, older, dirtied_before)
397 ctf_integer(int, moved, moved)
398 )
399)
400#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
3bc29f0a 401LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
b87700e3 402 TP_PROTO(struct bdi_writeback *wb,
b87700e3 403 struct wb_writeback_work *work,
b87700e3 404 int moved),
b87700e3 405 TP_ARGS(wb, work, moved),
817e02f9
MJ		 406 TP_FIELDS(
407 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
408 ctf_integer(int, moved, moved)
409 )
410)
411#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
412LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
413 TP_PROTO(struct bdi_writeback *wb,
414 unsigned long *older_than_this,
415 int moved),
b87700e3 416 TP_ARGS(wb, older_than_this, moved),
f127e61e
MD		 417 TP_FIELDS(
418 ctf_array_text(char, name, dev_name(wb->bdi->dev), 32)
f127e61e
MD		 419 ctf_integer(unsigned long, older,
420 older_than_this ? *older_than_this : 0)
421 ctf_integer(long, age,
422 older_than_this ?
423 (jiffies - *older_than_this) * 1000 / HZ
424 : -1)
f127e61e 425 ctf_integer(int, moved, moved)
b87700e3 426 )
b87700e3 427)
817e02f9 428#endif
b87700e3 429
0b1facd4
MJ		 430#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,8,0))
431LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
432
433 writeback_global_dirty_state,
434
435 TP_PROTO(unsigned long background_thresh,
436 unsigned long dirty_thresh
437 ),
438
439 TP_ARGS(background_thresh,
440 dirty_thresh
441 ),
442
443 TP_FIELDS(
444 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
445 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
446 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
447 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
448 ctf_integer(unsigned long, background_thresh, background_thresh)
449 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
450 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
451 )
452)
453#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
7ceeb15d
MJ		 454LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
455
456 writeback_global_dirty_state,
457
458 TP_PROTO(unsigned long background_thresh,
459 unsigned long dirty_thresh
460 ),
461
462 TP_ARGS(background_thresh,
463 dirty_thresh
464 ),
465
466 TP_FIELDS(
467 ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
468 ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
469 ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
470 ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
471 ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
472 ctf_integer(unsigned long, background_thresh, background_thresh)
473 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
474 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
475 )
476)
817e02f9 477#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a 478LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
9cf29d3e
MD		 479
480 writeback_global_dirty_state,
b87700e3
AG		 481
482 TP_PROTO(unsigned long background_thresh,
483 unsigned long dirty_thresh
484 ),
485
486 TP_ARGS(background_thresh,
487 dirty_thresh
488 ),
489
f127e61e
MD		 490 TP_FIELDS(
491 ctf_integer(unsigned long, nr_dirty, global_page_state(NR_FILE_DIRTY))
492 ctf_integer(unsigned long, nr_writeback, global_page_state(NR_WRITEBACK))
493 ctf_integer(unsigned long, nr_unstable, global_page_state(NR_UNSTABLE_NFS))
494 ctf_integer(unsigned long, nr_dirtied, global_page_state(NR_DIRTIED))
495 ctf_integer(unsigned long, nr_written, global_page_state(NR_WRITTEN))
496 ctf_integer(unsigned long, background_thresh, background_thresh)
497 ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
498 ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
b87700e3
AG		 499 )
500)
501#endif
502
503#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
504
505#define KBps(x) ((x) << (PAGE_SHIFT - 10))
506
a40cb509
MD		 507#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
508
509LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
510
511 writeback_bdi_dirty_ratelimit,
512
513 TP_PROTO(struct bdi_writeback *wb,
514 unsigned long dirty_rate,
515 unsigned long task_ratelimit),
516
517 TP_ARGS(wb, dirty_rate, task_ratelimit),
518
519 TP_FIELDS(
520 ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
521 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
522 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
523 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
524 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
525 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
526 ctf_integer(unsigned long, balanced_dirty_ratelimit,
527 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
528 )
529)
530
531#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
c7d89a6d 532
3bc29f0a 533LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
9cf29d3e
MD		 534
535 writeback_bdi_dirty_ratelimit,
b87700e3
AG		 536
537 TP_PROTO(struct backing_dev_info *bdi,
538 unsigned long dirty_rate,
539 unsigned long task_ratelimit),
540
541 TP_ARGS(bdi, dirty_rate, task_ratelimit),
542
f127e61e
MD		 543 TP_FIELDS(
544 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
902947a4
MJ		 545 ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
546 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
f127e61e 547 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
902947a4 548 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
f127e61e 549 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
902947a4
MJ		 550 ctf_integer(unsigned long, balanced_dirty_ratelimit,
551 KBps(bdi->wb.balanced_dirty_ratelimit))
c7d89a6d
MD		 552 )
553)
554
555#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
556
557LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
558
559 writeback_bdi_dirty_ratelimit,
560
561 TP_PROTO(struct backing_dev_info *bdi,
562 unsigned long dirty_rate,
563 unsigned long task_ratelimit),
564
565 TP_ARGS(bdi, dirty_rate, task_ratelimit),
566
567 TP_FIELDS(
568 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
569 ctf_integer(unsigned long, write_bw, KBps(bdi->write_bandwidth))
570 ctf_integer(unsigned long, avg_write_bw, KBps(bdi->avg_write_bandwidth))
571 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
572 ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->dirty_ratelimit))
573 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
f127e61e 574 ctf_integer(unsigned long, balanced_dirty_ratelimit,
b87700e3 575 KBps(bdi->balanced_dirty_ratelimit))
b87700e3
AG		 576 )
577)
578
c7d89a6d
MD		 579#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
580
a40cb509
MD		 581#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
582
583LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
584
585 writeback_balance_dirty_pages,
586
587 TP_PROTO(struct bdi_writeback *wb,
588 unsigned long thresh,
589 unsigned long bg_thresh,
590 unsigned long dirty,
591 unsigned long bdi_thresh,
592 unsigned long bdi_dirty,
593 unsigned long dirty_ratelimit,
594 unsigned long task_ratelimit,
595 unsigned long dirtied,
596 unsigned long period,
597 long pause,
598 unsigned long start_time),
599
600 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
601 dirty_ratelimit, task_ratelimit,
602 dirtied, period, pause, start_time
603 ),
604
605 TP_FIELDS(
606 ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
607 ctf_integer(unsigned long, limit, global_dirty_limit)
608 ctf_integer(unsigned long, setpoint,
609 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
610 ctf_integer(unsigned long, dirty, dirty)
611 ctf_integer(unsigned long, bdi_setpoint,
612 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
613 bdi_thresh / (thresh + 1))
614 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
615 ctf_integer(unsigned long, dirty_ratelimit,
616 KBps(dirty_ratelimit))
617 ctf_integer(unsigned long, task_ratelimit,
618 KBps(task_ratelimit))
619 ctf_integer(unsigned int, dirtied, dirtied)
620 ctf_integer(unsigned int, dirtied_pause,
621 current->nr_dirtied_pause)
622 ctf_integer(unsigned long, paused,
623 (jiffies - start_time) * 1000 / HZ)
624 ctf_integer(long, pause, pause * 1000 / HZ)
625 ctf_integer(unsigned long, period,
626 period * 1000 / HZ)
627 ctf_integer(long, think,
628 current->dirty_paused_when == 0 ? 0 :
629 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
630 )
631)
632
633#else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
634
3bc29f0a 635LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
9cf29d3e
MD		 636
637 writeback_balance_dirty_pages,
b87700e3
AG		 638
639 TP_PROTO(struct backing_dev_info *bdi,
640 unsigned long thresh,
641 unsigned long bg_thresh,
642 unsigned long dirty,
643 unsigned long bdi_thresh,
644 unsigned long bdi_dirty,
645 unsigned long dirty_ratelimit,
646 unsigned long task_ratelimit,
647 unsigned long dirtied,
648#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
649 unsigned long period,
650#endif
651 long pause,
652 unsigned long start_time),
653
654 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
655 dirty_ratelimit, task_ratelimit,
656#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
f127e61e 657 dirtied, period, pause, start_time
b87700e3 658#else
f127e61e 659 dirtied, pause, start_time
b87700e3
AG		 660#endif
661 ),
662
f127e61e
MD		 663 TP_FIELDS(
664 ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
665 ctf_integer(unsigned long, limit, global_dirty_limit)
666 ctf_integer(unsigned long, setpoint,
b87700e3 667 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
f127e61e
MD		 668 ctf_integer(unsigned long, dirty, dirty)
669 ctf_integer(unsigned long, bdi_setpoint,
b87700e3 670 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
f127e61e
MD		 671 bdi_thresh / (thresh + 1))
672 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
673 ctf_integer(unsigned long, dirty_ratelimit,
674 KBps(dirty_ratelimit))
675 ctf_integer(unsigned long, task_ratelimit,
676 KBps(task_ratelimit))
677 ctf_integer(unsigned int, dirtied, dirtied)
678 ctf_integer(unsigned int, dirtied_pause,
679 current->nr_dirtied_pause)
680 ctf_integer(unsigned long, paused,
681 (jiffies - start_time) * 1000 / HZ)
682 ctf_integer(long, pause, pause * 1000 / HZ)
b87700e3 683#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
f127e61e
MD		 684 ctf_integer(unsigned long, period,
685 period * 1000 / HZ)
686 ctf_integer(long, think,
687 current->dirty_paused_when == 0 ? 0 :
688 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
b87700e3 689#endif
f127e61e 690 )
b87700e3 691)
a40cb509
MD		 692#endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
693
694#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
b87700e3
AG		 695
696#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
3bc29f0a 697LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
b87700e3
AG		 698
699 TP_PROTO(struct inode *inode),
700 TP_ARGS(inode),
701
f127e61e
MD		 702 TP_FIELDS(
703 ctf_array_text(char, name,
70f6fc80 704 dev_name(lttng_inode_to_bdi(inode)->dev), 32)
f127e61e
MD		 705 ctf_integer(unsigned long, ino, inode->i_ino)
706 ctf_integer(unsigned long, state, inode->i_state)
707 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
b87700e3
AG		 708 )
709)
710#endif
711
3bc29f0a 712LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
b87700e3
AG		 713
714 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
715
716 TP_ARGS(usec_timeout, usec_delayed),
717
f127e61e
MD		 718 TP_FIELDS(
719 ctf_integer(unsigned int, usec_timeout, usec_timeout)
720 ctf_integer(unsigned int, usec_delayed, usec_delayed)
721 )
b87700e3
AG		 722)
723
3bc29f0a 724LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
b87700e3
AG		 725
726 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
727
728 TP_ARGS(usec_timeout, usec_delayed)
729)
730
3bc29f0a 731LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
b87700e3
AG		 732
733 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
734
735 TP_ARGS(usec_timeout, usec_delayed)
736)
b87700e3
AG		 737
738#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
3bc29f0a 739LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
b87700e3
AG		 740
741 TP_PROTO(struct inode *inode,
742 struct writeback_control *wbc,
743 unsigned long nr_to_write
744 ),
745
746 TP_ARGS(inode, wbc, nr_to_write),
747
f127e61e
MD		 748 TP_FIELDS(
749 ctf_array_text(char, name,
70f6fc80 750 dev_name(lttng_inode_to_bdi(inode)->dev), 32)
f127e61e
MD		 751 ctf_integer(unsigned long, ino, inode->i_ino)
752 ctf_integer(unsigned long, state, inode->i_state)
753 ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
754 ctf_integer(unsigned long, writeback_index,
755 inode->i_mapping->writeback_index)
756 ctf_integer(long, nr_to_write, nr_to_write)
757 ctf_integer(unsigned long, wrote,
758 nr_to_write - wbc->nr_to_write)
b87700e3
AG		 759 )
760)
761
762#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
3bc29f0a 763LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
b87700e3
AG		 764 TP_PROTO(struct inode *inode,
765 struct writeback_control *wbc,
766 unsigned long nr_to_write),
767 TP_ARGS(inode, wbc, nr_to_write)
768)
769#endif
770
3bc29f0a 771LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
b87700e3
AG		 772 TP_PROTO(struct inode *inode,
773 struct writeback_control *wbc,
774 unsigned long nr_to_write),
775 TP_ARGS(inode, wbc, nr_to_write)
776)
777#endif
778
3bc29f0a 779#endif /* LTTNG_TRACE_WRITEBACK_H */
b87700e3
AG		 780
781/* This part must be outside protection */
3b4aafcb 782#include <lttng/define_trace.h>
LTTng 2.0/0.x modules
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