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Fix: writeback instrumentation update for 4.3 Linux kernel
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
1 #undef TRACE_SYSTEM
2 #define TRACE_SYSTEM writeback
3
4 #if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define LTTNG_TRACE_WRITEBACK_H
6
7 #include "../../../probes/lttng-tracepoint-event.h"
8 #include <linux/tracepoint.h>
9 #include <linux/backing-dev.h>
10 #include <linux/writeback.h>
11 #include <linux/version.h>
12
13 #ifndef _TRACE_WRITEBACK_DEF_
14 #define _TRACE_WRITEBACK_DEF_
15
16 #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
17 static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
18 {
19 struct super_block *sb = inode->i_sb;
20
21 if (strcmp(sb->s_type->name, "bdev") == 0)
22 return inode->i_mapping->backing_dev_info;
23
24 return sb->s_bdi;
25 }
26 #endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
27
28 #endif
29
30 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
31 #define show_inode_state(state) \
32 __print_flags(state, "|", \
33 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
34 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
35 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
36 {I_NEW, "I_NEW"}, \
37 {I_WILL_FREE, "I_WILL_FREE"}, \
38 {I_FREEING, "I_FREEING"}, \
39 {I_CLEAR, "I_CLEAR"}, \
40 {I_SYNC, "I_SYNC"}, \
41 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
42 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
43 {I_REFERENCED, "I_REFERENCED"} \
44 )
45 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
46 #define show_inode_state(state) \
47 __print_flags(state, "|", \
48 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
49 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
50 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
51 {I_NEW, "I_NEW"}, \
52 {I_WILL_FREE, "I_WILL_FREE"}, \
53 {I_FREEING, "I_FREEING"}, \
54 {I_CLEAR, "I_CLEAR"}, \
55 {I_SYNC, "I_SYNC"}, \
56 {I_REFERENCED, "I_REFERENCED"} \
57 )
58 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
59
60 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
61
62 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
63 TP_PROTO(struct page *page, struct address_space *mapping),
64 TP_ARGS(page, mapping),
65 TP_STRUCT__entry (
66 __array_text(char, name, 32)
67 __field(unsigned long, ino)
68 __field(pgoff_t, index)
69 ),
70 TP_fast_assign(
71 tp_memcpy(name,
72 mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
73 tp_assign(ino, mapping ? mapping->host->i_ino : 0)
74 tp_assign(index, page->index)
75 ),
76 TP_printk("bdi %s: ino=%lu index=%lu",
77 __entry->name,
78 __entry->ino,
79 __entry->index
80 )
81 )
82
83 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
84 TP_PROTO(struct inode *inode, int flags),
85 TP_ARGS(inode, flags),
86 TP_STRUCT__entry (
87 __array_text(char, name, 32)
88 __field(unsigned long, ino)
89 __field(unsigned long, state)
90 __field(unsigned long, flags)
91 ),
92 TP_fast_assign(
93 /* may be called for files on pseudo FSes w/ unregistered bdi */
94 tp_memcpy(name,
95 inode_to_bdi(inode)->dev ?
96 dev_name(inode_to_bdi(inode)->dev) : "(unknown)", 32)
97 tp_assign(ino, inode->i_ino)
98 tp_assign(state, inode->i_state)
99 tp_assign(flags, flags)
100 ),
101 TP_printk("bdi %s: ino=%lu flags=%s",
102 __entry->name,
103 __entry->ino,
104 show_inode_state(__entry->flags)
105 )
106 )
107 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
108 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
109 TP_PROTO(struct inode *inode, int flags), \
110 TP_ARGS(inode, flags))
111 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
112 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
113 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_mark_inode_dirty)
114
115 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
116 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
117 TP_ARGS(inode, wbc),
118 TP_STRUCT__entry (
119 __array_text(char, name, 32)
120 __field(unsigned long, ino)
121 __field(int, sync_mode)
122 ),
123 TP_fast_assign(
124 tp_memcpy(name,
125 dev_name(inode_to_bdi(inode)->dev), 32)
126 tp_assign(ino, inode->i_ino)
127 tp_assign(sync_mode, wbc->sync_mode)
128 ),
129 TP_printk("bdi %s: ino=%lu sync_mode=%d",
130 __entry->name,
131 __entry->ino,
132 __entry->sync_mode
133 )
134 )
135
136 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
137 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
138 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
139 TP_ARGS(inode, wbc))
140 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
141 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
142
143 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
144
145 LTTNG_TRACEPOINT_EVENT(writeback_dirty_page,
146 TP_PROTO(struct page *page, struct address_space *mapping),
147 TP_ARGS(page, mapping),
148 TP_STRUCT__entry (
149 __array_text(char, name, 32)
150 __field(unsigned long, ino)
151 __field(pgoff_t, index)
152 ),
153 TP_fast_assign(
154 tp_memcpy(name,
155 mapping ? dev_name(mapping->backing_dev_info->dev) : "(unknown)", 32)
156 tp_assign(ino, mapping ? mapping->host->i_ino : 0)
157 tp_assign(index, page->index)
158 ),
159 TP_printk("bdi %s: ino=%lu index=%lu",
160 __entry->name,
161 __entry->ino,
162 __entry->index
163 )
164 )
165
166 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template,
167 TP_PROTO(struct inode *inode, int flags),
168 TP_ARGS(inode, flags),
169 TP_STRUCT__entry (
170 __array_text(char, name, 32)
171 __field(unsigned long, ino)
172 __field(unsigned long, flags)
173 ),
174 TP_fast_assign(
175 /* may be called for files on pseudo FSes w/ unregistered bdi */
176 tp_memcpy(name,
177 inode->i_mapping->backing_dev_info->dev ?
178 dev_name(inode->i_mapping->backing_dev_info->dev) : "(unknown)", 32)
179 tp_assign(ino, inode->i_ino)
180 tp_assign(flags, flags)
181 ),
182 TP_printk("bdi %s: ino=%lu flags=%s",
183 __entry->name,
184 __entry->ino,
185 show_inode_state(__entry->flags)
186 )
187 )
188 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(name) \
189 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_dirty_inode_template, name, \
190 TP_PROTO(struct inode *inode, int flags), \
191 TP_ARGS(inode, flags))
192 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode_start)
193 LTTNG_TRACEPOINT_EVENT_WRITEBACK_DIRTY_INODE_TEMPLATE(writeback_dirty_inode)
194
195 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template,
196 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
197 TP_ARGS(inode, wbc),
198 TP_STRUCT__entry (
199 __array_text(char, name, 32)
200 __field(unsigned long, ino)
201 __field(int, sync_mode)
202 ),
203 TP_fast_assign(
204 tp_memcpy(name,
205 dev_name(inode->i_mapping->backing_dev_info->dev), 32)
206 tp_assign(ino, inode->i_ino)
207 tp_assign(sync_mode, wbc->sync_mode)
208 ),
209 TP_printk("bdi %s: ino=%lu sync_mode=%d",
210 __entry->name,
211 __entry->ino,
212 __entry->sync_mode
213 )
214 )
215
216 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(name) \
217 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_write_inode_template, name, \
218 TP_PROTO(struct inode *inode, struct writeback_control *wbc), \
219 TP_ARGS(inode, wbc))
220 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode_start)
221 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WRITE_INODE(writeback_write_inode)
222
223 #endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
224
225 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
226
227 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
228 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
229 TP_ARGS(wb, work),
230 TP_FIELDS(
231 ctf_array_text(char, name, wb->bdi->dev ? dev_name(wb->bdi->dev) :
232 "(unknown)", 32)
233 )
234 )
235
236 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
237
238 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
239 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
240 TP_ARGS(bdi, work),
241 TP_STRUCT__entry(
242 __array_text(char, name, 32)
243 ),
244 TP_fast_assign(
245 tp_memcpy(name, bdi->dev ? dev_name(bdi->dev) :
246 "(unknown)", 32)
247 ),
248 TP_printk("bdi %s",
249 __entry->name
250 )
251 )
252
253 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
254
255 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
256 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
257 TP_ARGS(bdi, work),
258 TP_STRUCT__entry(
259 __array_text(char, name, 32)
260 ),
261 TP_fast_assign(
262 tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
263 default_backing_dev_info.dev), 32)
264 ),
265 TP_printk("bdi %s",
266 __entry->name
267 )
268 )
269
270 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
271
272 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
273
274 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
275 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
276 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
277 TP_ARGS(wb, work))
278
279 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
280
281 #define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
282 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
283 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
284 TP_ARGS(bdi, work))
285
286 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
287
288 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
289 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
290 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
291 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
292 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_start)
293 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_written)
294 LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_wait)
295 #endif
296
297 LTTNG_TRACEPOINT_EVENT(writeback_pages_written,
298 TP_PROTO(long pages_written),
299 TP_ARGS(pages_written),
300 TP_STRUCT__entry(
301 __field(long, pages)
302 ),
303 TP_fast_assign(
304 tp_assign(pages, pages_written)
305 ),
306 TP_printk("%ld", __entry->pages)
307 )
308
309 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
310
311 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
312 TP_PROTO(struct bdi_writeback *wb),
313 TP_ARGS(wb),
314 TP_FIELDS(
315 ctf_array_text(char, name,
316 dev_name(wb->bdi->dev), 32)
317 )
318 )
319
320 #undef DEFINE_WRITEBACK_EVENT
321 #define DEFINE_WRITEBACK_EVENT(name) \
322 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
323 TP_PROTO(struct bdi_writeback *wb), \
324 TP_ARGS(wb))
325
326 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
327 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
328 TP_PROTO(struct bdi_writeback *wb), \
329 TP_ARGS(wb))
330
331 LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
332 TP_PROTO(struct backing_dev_info *bdi),
333 TP_ARGS(bdi),
334 TP_FIELDS(
335 ctf_array_text(char, name,
336 dev_name(bdi->dev), 32)
337 )
338 )
339
340 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
341
342 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
343 TP_PROTO(struct backing_dev_info *bdi),
344 TP_ARGS(bdi),
345 TP_STRUCT__entry(
346 __array_text(char, name, 32)
347 ),
348 TP_fast_assign(
349 tp_memcpy(name, dev_name(bdi->dev), 32)
350 ),
351 TP_printk("bdi %s",
352 __entry->name
353 )
354 )
355
356 #undef DEFINE_WRITEBACK_EVENT
357 #define DEFINE_WRITEBACK_EVENT(name) \
358 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
359 TP_PROTO(struct backing_dev_info *bdi), \
360 TP_ARGS(bdi))
361
362 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
363 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
364 TP_PROTO(struct backing_dev_info *bdi), \
365 TP_ARGS(bdi))
366
367 DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
368
369 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
370
371 DEFINE_WRITEBACK_EVENT(writeback_nowork)
372 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
373 DEFINE_WRITEBACK_EVENT(writeback_wake_background)
374 #endif
375 DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
376 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
377 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
378 DEFINE_WRITEBACK_EVENT(writeback_thread_start)
379 DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
380 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
381 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
382 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
383
384 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_written,
385
386 writeback_balance_dirty_written,
387
388 TP_PROTO(struct backing_dev_info *bdi, int written),
389
390 TP_ARGS(bdi, written),
391
392 TP_STRUCT__entry(
393 __array(char, name, 32)
394 __field(int, written)
395 ),
396
397 TP_fast_assign(
398 tp_memcpy(name, dev_name(bdi->dev), 32)
399 tp_assign(written, written)
400 ),
401
402 TP_printk("bdi %s written %d",
403 __entry->name,
404 __entry->written
405 )
406 )
407 #endif
408
409 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_wbc_class,
410 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
411 TP_ARGS(wbc, bdi),
412 TP_STRUCT__entry(
413 __array_text(char, name, 32)
414 __field(long, nr_to_write)
415 __field(long, pages_skipped)
416 __field(int, sync_mode)
417 __field(int, for_kupdate)
418 __field(int, for_background)
419 __field(int, for_reclaim)
420 __field(int, range_cyclic)
421 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
422 __field(int, more_io)
423 __field(unsigned long, older_than_this)
424 #endif
425 __field(long, range_start)
426 __field(long, range_end)
427 ),
428
429 TP_fast_assign(
430 tp_memcpy(name, dev_name(bdi->dev), 32)
431 tp_assign(nr_to_write, wbc->nr_to_write)
432 tp_assign(pages_skipped, wbc->pages_skipped)
433 tp_assign(sync_mode, wbc->sync_mode)
434 tp_assign(for_kupdate, wbc->for_kupdate)
435 tp_assign(for_background, wbc->for_background)
436 tp_assign(for_reclaim, wbc->for_reclaim)
437 tp_assign(range_cyclic, wbc->range_cyclic)
438 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
439 tp_assign(more_io, wbc->more_io)
440 tp_assign(older_than_this, wbc->older_than_this ?
441 *wbc->older_than_this : 0)
442 #endif
443 tp_assign(range_start, (long)wbc->range_start)
444 tp_assign(range_end, (long)wbc->range_end)
445 ),
446
447 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
448 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
449 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
450 #else
451 "bgrd=%d reclm=%d cyclic=%d "
452 #endif
453 "start=0x%lx end=0x%lx",
454 __entry->name,
455 __entry->nr_to_write,
456 __entry->pages_skipped,
457 __entry->sync_mode,
458 __entry->for_kupdate,
459 __entry->for_background,
460 __entry->for_reclaim,
461 __entry->range_cyclic,
462 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
463 __entry->more_io,
464 __entry->older_than_this,
465 #endif
466 __entry->range_start,
467 __entry->range_end)
468 )
469
470 #undef DEFINE_WBC_EVENT
471 #define LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(name, map) \
472 LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_wbc_class, name, map, \
473 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
474 TP_ARGS(wbc, bdi))
475 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
476 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_start, writeback_wbc_writeback_start)
477 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_written, writeback_wbc_writeback_written)
478 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writeback_wait, writeback_wbc_writeback_wait)
479 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
480 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
481 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
482 #endif
483 LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage)
484
485 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
486 LTTNG_TRACEPOINT_EVENT(writeback_queue_io,
487 TP_PROTO(struct bdi_writeback *wb,
488 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
489 struct wb_writeback_work *work,
490 #else
491 unsigned long *older_than_this,
492 #endif
493 int moved),
494 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
495 TP_ARGS(wb, work, moved),
496 #else
497 TP_ARGS(wb, older_than_this, moved),
498 #endif
499 TP_STRUCT__entry(
500 __array(char, name, 32)
501 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
502 #else
503 __field(unsigned long, older)
504 __field(long, age)
505 #endif
506 __field(int, moved)
507 ),
508 TP_fast_assign(
509 tp_memcpy(name, dev_name(wb->bdi->dev), 32)
510 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
511 #else
512 tp_assign(older, older_than_this ? *older_than_this : 0)
513 tp_assign(age, older_than_this ?
514 (jiffies - *older_than_this) * 1000 / HZ : -1)
515 #endif
516 tp_assign(moved, moved)
517 ),
518 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
519 TP_printk("bdi %s: enqueue=%d",
520 __entry->name,
521 __entry->moved,
522 )
523 #else
524 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
525 __entry->name,
526 __entry->older, /* older_than_this in jiffies */
527 __entry->age, /* older_than_this in relative milliseconds */
528 __entry->moved
529 )
530 #endif
531 )
532
533 LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
534
535 writeback_global_dirty_state,
536
537 TP_PROTO(unsigned long background_thresh,
538 unsigned long dirty_thresh
539 ),
540
541 TP_ARGS(background_thresh,
542 dirty_thresh
543 ),
544
545 TP_STRUCT__entry(
546 __field(unsigned long, nr_dirty)
547 __field(unsigned long, nr_writeback)
548 __field(unsigned long, nr_unstable)
549 __field(unsigned long, background_thresh)
550 __field(unsigned long, dirty_thresh)
551 __field(unsigned long, dirty_limit)
552 __field(unsigned long, nr_dirtied)
553 __field(unsigned long, nr_written)
554 ),
555
556 TP_fast_assign(
557 tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
558 tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
559 tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
560 tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
561 tp_assign(nr_written, global_page_state(NR_WRITTEN))
562 tp_assign(background_thresh, background_thresh)
563 tp_assign(dirty_thresh, dirty_thresh)
564 tp_assign(dirty_limit, global_dirty_limit)
565 ),
566
567 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
568 "bg_thresh=%lu thresh=%lu limit=%lu "
569 "dirtied=%lu written=%lu",
570 __entry->nr_dirty,
571 __entry->nr_writeback,
572 __entry->nr_unstable,
573 __entry->background_thresh,
574 __entry->dirty_thresh,
575 __entry->dirty_limit,
576 __entry->nr_dirtied,
577 __entry->nr_written
578 )
579 )
580 #endif
581
582 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
583
584 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
585
586 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
587
588 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
589
590 writeback_bdi_dirty_ratelimit,
591
592 TP_PROTO(struct bdi_writeback *wb,
593 unsigned long dirty_rate,
594 unsigned long task_ratelimit),
595
596 TP_ARGS(wb, dirty_rate, task_ratelimit),
597
598 TP_FIELDS(
599 ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
600 ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
601 ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
602 ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
603 ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
604 ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
605 ctf_integer(unsigned long, balanced_dirty_ratelimit,
606 KBps(wb->bdi->wb.balanced_dirty_ratelimit))
607 )
608 )
609
610 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
611
612 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
613
614 writeback_bdi_dirty_ratelimit,
615
616 TP_PROTO(struct backing_dev_info *bdi,
617 unsigned long dirty_rate,
618 unsigned long task_ratelimit),
619
620 TP_ARGS(bdi, dirty_rate, task_ratelimit),
621
622 TP_STRUCT__entry(
623 __array(char, bdi, 32)
624 __field(unsigned long, write_bw)
625 __field(unsigned long, avg_write_bw)
626 __field(unsigned long, dirty_rate)
627 __field(unsigned long, dirty_ratelimit)
628 __field(unsigned long, task_ratelimit)
629 __field(unsigned long, balanced_dirty_ratelimit)
630 ),
631
632 TP_fast_assign(
633 tp_memcpy(bdi, dev_name(bdi->dev), 32)
634 tp_assign(write_bw, KBps(bdi->wb.write_bandwidth))
635 tp_assign(avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
636 tp_assign(dirty_rate, KBps(dirty_rate))
637 tp_assign(dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
638 tp_assign(task_ratelimit, KBps(task_ratelimit))
639 tp_assign(balanced_dirty_ratelimit,
640 KBps(bdi->wb.balanced_dirty_ratelimit))
641 ),
642
643 TP_printk("bdi %s: "
644 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
645 "dirty_ratelimit=%lu task_ratelimit=%lu "
646 "balanced_dirty_ratelimit=%lu",
647 __entry->bdi,
648 __entry->write_bw, /* write bandwidth */
649 __entry->avg_write_bw, /* avg write bandwidth */
650 __entry->dirty_rate, /* bdi dirty rate */
651 __entry->dirty_ratelimit, /* base ratelimit */
652 __entry->task_ratelimit, /* ratelimit with position control */
653 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
654 )
655 )
656
657 #else
658
659 LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
660
661 writeback_bdi_dirty_ratelimit,
662
663 TP_PROTO(struct backing_dev_info *bdi,
664 unsigned long dirty_rate,
665 unsigned long task_ratelimit),
666
667 TP_ARGS(bdi, dirty_rate, task_ratelimit),
668
669 TP_STRUCT__entry(
670 __array(char, bdi, 32)
671 __field(unsigned long, write_bw)
672 __field(unsigned long, avg_write_bw)
673 __field(unsigned long, dirty_rate)
674 __field(unsigned long, dirty_ratelimit)
675 __field(unsigned long, task_ratelimit)
676 __field(unsigned long, balanced_dirty_ratelimit)
677 ),
678
679 TP_fast_assign(
680 tp_memcpy(bdi, dev_name(bdi->dev), 32)
681 tp_assign(write_bw, KBps(bdi->write_bandwidth))
682 tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
683 tp_assign(dirty_rate, KBps(dirty_rate))
684 tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
685 tp_assign(task_ratelimit, KBps(task_ratelimit))
686 tp_assign(balanced_dirty_ratelimit,
687 KBps(bdi->balanced_dirty_ratelimit))
688 ),
689
690 TP_printk("bdi %s: "
691 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
692 "dirty_ratelimit=%lu task_ratelimit=%lu "
693 "balanced_dirty_ratelimit=%lu",
694 __entry->bdi,
695 __entry->write_bw, /* write bandwidth */
696 __entry->avg_write_bw, /* avg write bandwidth */
697 __entry->dirty_rate, /* bdi dirty rate */
698 __entry->dirty_ratelimit, /* base ratelimit */
699 __entry->task_ratelimit, /* ratelimit with position control */
700 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
701 )
702 )
703
704 #endif
705
706 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
707
708 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
709
710 writeback_balance_dirty_pages,
711
712 TP_PROTO(struct bdi_writeback *wb,
713 unsigned long thresh,
714 unsigned long bg_thresh,
715 unsigned long dirty,
716 unsigned long bdi_thresh,
717 unsigned long bdi_dirty,
718 unsigned long dirty_ratelimit,
719 unsigned long task_ratelimit,
720 unsigned long dirtied,
721 unsigned long period,
722 long pause,
723 unsigned long start_time),
724
725 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
726 dirty_ratelimit, task_ratelimit,
727 dirtied, period, pause, start_time
728 ),
729
730 TP_FIELDS(
731 ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
732 ctf_integer(unsigned long, limit, global_dirty_limit)
733 ctf_integer(unsigned long, setpoint,
734 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
735 ctf_integer(unsigned long, dirty, dirty)
736 ctf_integer(unsigned long, bdi_setpoint,
737 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
738 bdi_thresh / (thresh + 1))
739 ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
740 ctf_integer(unsigned long, dirty_ratelimit,
741 KBps(dirty_ratelimit))
742 ctf_integer(unsigned long, task_ratelimit,
743 KBps(task_ratelimit))
744 ctf_integer(unsigned int, dirtied, dirtied)
745 ctf_integer(unsigned int, dirtied_pause,
746 current->nr_dirtied_pause)
747 ctf_integer(unsigned long, paused,
748 (jiffies - start_time) * 1000 / HZ)
749 ctf_integer(long, pause, pause * 1000 / HZ)
750 ctf_integer(unsigned long, period,
751 period * 1000 / HZ)
752 ctf_integer(long, think,
753 current->dirty_paused_when == 0 ? 0 :
754 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
755 )
756 )
757
758 #else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
759
760 LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
761
762 writeback_balance_dirty_pages,
763
764 TP_PROTO(struct backing_dev_info *bdi,
765 unsigned long thresh,
766 unsigned long bg_thresh,
767 unsigned long dirty,
768 unsigned long bdi_thresh,
769 unsigned long bdi_dirty,
770 unsigned long dirty_ratelimit,
771 unsigned long task_ratelimit,
772 unsigned long dirtied,
773 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
774 unsigned long period,
775 #endif
776 long pause,
777 unsigned long start_time),
778
779 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
780 dirty_ratelimit, task_ratelimit,
781 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
782 dirtied, period, pause, start_time),
783 #else
784 dirtied, pause, start_time),
785 #endif
786 TP_STRUCT__entry(
787 __array( char, bdi, 32)
788 __field(unsigned long, limit)
789 __field(unsigned long, setpoint)
790 __field(unsigned long, dirty)
791 __field(unsigned long, bdi_setpoint)
792 __field(unsigned long, bdi_dirty)
793 __field(unsigned long, dirty_ratelimit)
794 __field(unsigned long, task_ratelimit)
795 __field(unsigned int, dirtied)
796 __field(unsigned int, dirtied_pause)
797 __field(unsigned long, paused)
798 __field( long, pause)
799 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
800 __field(unsigned long, period)
801 __field( long, think)
802 #endif
803 ),
804
805 TP_fast_assign(
806 tp_memcpy(bdi, dev_name(bdi->dev), 32)
807 tp_assign(limit, global_dirty_limit)
808 tp_assign(setpoint,
809 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
810 tp_assign(dirty, dirty)
811 tp_assign(bdi_setpoint,
812 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
813 bdi_thresh / (thresh + 1))
814 tp_assign(bdi_dirty, bdi_dirty)
815 tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
816 tp_assign(task_ratelimit, KBps(task_ratelimit))
817 tp_assign(dirtied, dirtied)
818 tp_assign(dirtied_pause, current->nr_dirtied_pause)
819 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
820 tp_assign(think, current->dirty_paused_when == 0 ? 0 :
821 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
822 tp_assign(period, period * 1000 / HZ)
823 #endif
824 tp_assign(pause, pause * 1000 / HZ)
825 tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
826 ),
827
828
829 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
830 TP_printk("bdi %s: "
831 "limit=%lu setpoint=%lu dirty=%lu "
832 "bdi_setpoint=%lu bdi_dirty=%lu "
833 "dirty_ratelimit=%lu task_ratelimit=%lu "
834 "dirtied=%u dirtied_pause=%u "
835 "paused=%lu pause=%ld period=%lu think=%ld",
836 __entry->bdi,
837 __entry->limit,
838 __entry->setpoint,
839 __entry->dirty,
840 __entry->bdi_setpoint,
841 __entry->bdi_dirty,
842 __entry->dirty_ratelimit,
843 __entry->task_ratelimit,
844 __entry->dirtied,
845 __entry->dirtied_pause,
846 __entry->paused, /* ms */
847 __entry->pause, /* ms */
848 __entry->period, /* ms */
849 __entry->think /* ms */
850 )
851 #else
852 TP_printk("bdi %s: "
853 "limit=%lu setpoint=%lu dirty=%lu "
854 "bdi_setpoint=%lu bdi_dirty=%lu "
855 "dirty_ratelimit=%lu task_ratelimit=%lu "
856 "dirtied=%u dirtied_pause=%u "
857 "paused=%lu pause=%ld",
858 __entry->bdi,
859 __entry->limit,
860 __entry->setpoint,
861 __entry->dirty,
862 __entry->bdi_setpoint,
863 __entry->bdi_dirty,
864 __entry->dirty_ratelimit,
865 __entry->task_ratelimit,
866 __entry->dirtied,
867 __entry->dirtied_pause,
868 __entry->paused, /* ms */
869 __entry->pause /* ms */
870 )
871 #endif
872 )
873 #endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
874
875 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
876
877 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
878 LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
879
880 TP_PROTO(struct inode *inode),
881 TP_ARGS(inode),
882
883 TP_STRUCT__entry(
884 __array_text(char, name, 32)
885 __field(unsigned long, ino)
886 __field(unsigned long, state)
887 __field(unsigned long, dirtied_when)
888 ),
889
890 TP_fast_assign(
891 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
892 tp_assign(ino, inode->i_ino)
893 tp_assign(state, inode->i_state)
894 tp_assign(dirtied_when, inode->dirtied_when)
895 ),
896
897 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
898 __entry->name,
899 __entry->ino,
900 show_inode_state(__entry->state),
901 __entry->dirtied_when,
902 (jiffies - __entry->dirtied_when) / HZ
903 )
904 )
905 #endif
906
907 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
908 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_congest_waited_template,
909
910 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
911
912 TP_ARGS(usec_timeout, usec_delayed),
913
914 TP_STRUCT__entry(
915 __field( unsigned int, usec_timeout )
916 __field( unsigned int, usec_delayed )
917 ),
918
919 TP_fast_assign(
920 tp_assign(usec_timeout, usec_timeout)
921 tp_assign(usec_delayed, usec_delayed)
922 ),
923
924 TP_printk("usec_timeout=%u usec_delayed=%u",
925 __entry->usec_timeout,
926 __entry->usec_delayed)
927 )
928
929 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_congestion_wait,
930
931 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
932
933 TP_ARGS(usec_timeout, usec_delayed)
934 )
935
936 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_congest_waited_template, writeback_wait_iff_congested,
937
938 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
939
940 TP_ARGS(usec_timeout, usec_delayed)
941 )
942 #endif
943
944 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
945 LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template,
946
947 TP_PROTO(struct inode *inode,
948 struct writeback_control *wbc,
949 unsigned long nr_to_write
950 ),
951
952 TP_ARGS(inode, wbc, nr_to_write),
953
954 TP_STRUCT__entry(
955 __array_text(char, name, 32)
956 __field(unsigned long, ino)
957 __field(unsigned long, state)
958 __field(unsigned long, dirtied_when)
959 __field(unsigned long, writeback_index)
960 __field(long, nr_to_write)
961 __field(unsigned long, wrote)
962 ),
963
964 TP_fast_assign(
965 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
966 tp_assign(ino, inode->i_ino)
967 tp_assign(state, inode->i_state)
968 tp_assign(dirtied_when, inode->dirtied_when)
969 tp_assign(writeback_index, inode->i_mapping->writeback_index)
970 tp_assign(nr_to_write, nr_to_write)
971 tp_assign(wrote, nr_to_write - wbc->nr_to_write)
972 ),
973
974 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
975 "index=%lu to_write=%ld wrote=%lu",
976 __entry->name,
977 __entry->ino,
978 show_inode_state(__entry->state),
979 __entry->dirtied_when,
980 (jiffies - __entry->dirtied_when) / HZ,
981 __entry->writeback_index,
982 __entry->nr_to_write,
983 __entry->wrote
984 )
985 )
986
987 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
988 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode_requeue,
989 TP_PROTO(struct inode *inode,
990 struct writeback_control *wbc,
991 unsigned long nr_to_write),
992 TP_ARGS(inode, wbc, nr_to_write)
993 )
994 #endif
995
996 LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_single_inode_template, writeback_single_inode,
997 TP_PROTO(struct inode *inode,
998 struct writeback_control *wbc,
999 unsigned long nr_to_write),
1000 TP_ARGS(inode, wbc, nr_to_write)
1001 )
1002 #endif
1003
1004 #endif /* LTTNG_TRACE_WRITEBACK_H */
1005
1006 /* This part must be outside protection */
1007 #include "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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