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writeback instrumentation: remove duplicated structures
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
1 #undef TRACE_SYSTEM
2 #define TRACE_SYSTEM writeback
3
4 #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define _TRACE_WRITEBACK_H
6
7 #include <linux/backing-dev.h>
8 #include <linux/writeback.h>
9 #include <linux/version.h>
10
11 #ifndef _TRACE_WRITEBACK_DEF_
12 #define _TRACE_WRITEBACK_DEF_
13 static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
14 {
15 struct super_block *sb = inode->i_sb;
16
17 if (strcmp(sb->s_type->name, "bdev") == 0)
18 return inode->i_mapping->backing_dev_info;
19
20 return sb->s_bdi;
21 }
22 #endif
23
24 #define show_inode_state(state) \
25 __print_flags(state, "|", \
26 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
27 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
28 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
29 {I_NEW, "I_NEW"}, \
30 {I_WILL_FREE, "I_WILL_FREE"}, \
31 {I_FREEING, "I_FREEING"}, \
32 {I_CLEAR, "I_CLEAR"}, \
33 {I_SYNC, "I_SYNC"}, \
34 {I_REFERENCED, "I_REFERENCED"} \
35 )
36
37 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
38 #define WB_WORK_REASON \
39 {WB_REASON_BACKGROUND, "background"}, \
40 {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \
41 {WB_REASON_SYNC, "sync"}, \
42 {WB_REASON_PERIODIC, "periodic"}, \
43 {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \
44 {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \
45 {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \
46 {WB_REASON_FORKER_THREAD, "forker_thread"}
47 #endif
48
49 DECLARE_EVENT_CLASS(writeback_work_class,
50 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
51 TP_ARGS(bdi, work),
52 TP_STRUCT__entry(
53 __array(char, name, 32)
54 ),
55 TP_fast_assign(
56 tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
57 default_backing_dev_info.dev), 32)
58 ),
59 TP_printk("bdi %s",
60 __entry->name
61 )
62 )
63 #define DEFINE_WRITEBACK_WORK_EVENT(name) \
64 DEFINE_EVENT(writeback_work_class, name, \
65 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
66 TP_ARGS(bdi, work))
67 DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread)
68 DEFINE_WRITEBACK_WORK_EVENT(writeback_queue)
69 DEFINE_WRITEBACK_WORK_EVENT(writeback_exec)
70 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
71 DEFINE_WRITEBACK_WORK_EVENT(writeback_start)
72 DEFINE_WRITEBACK_WORK_EVENT(writeback_written)
73 DEFINE_WRITEBACK_WORK_EVENT(writeback_wait)
74 #endif
75
76 TRACE_EVENT(writeback_pages_written,
77 TP_PROTO(long pages_written),
78 TP_ARGS(pages_written),
79 TP_STRUCT__entry(
80 __field(long, pages)
81 ),
82 TP_fast_assign(
83 tp_assign(pages, pages_written)
84 ),
85 TP_printk("%ld", __entry->pages)
86 )
87
88 DECLARE_EVENT_CLASS(writeback_class,
89 TP_PROTO(struct backing_dev_info *bdi),
90 TP_ARGS(bdi),
91 TP_STRUCT__entry(
92 __array(char, name, 32)
93 ),
94 TP_fast_assign(
95 tp_memcpy(name, dev_name(bdi->dev), 32)
96 ),
97 TP_printk("bdi %s",
98 __entry->name
99 )
100 )
101 #define DEFINE_WRITEBACK_EVENT(name) \
102 DEFINE_EVENT(writeback_class, name, \
103 TP_PROTO(struct backing_dev_info *bdi), \
104 TP_ARGS(bdi))
105
106 #define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
107 DEFINE_EVENT_MAP(writeback_class, name, map, \
108 TP_PROTO(struct backing_dev_info *bdi), \
109 TP_ARGS(bdi))
110
111 DEFINE_WRITEBACK_EVENT(writeback_nowork)
112 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
113 DEFINE_WRITEBACK_EVENT(writeback_wake_background)
114 #endif
115 DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
116 DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
117 DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
118 DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
119 DEFINE_WRITEBACK_EVENT(writeback_thread_start)
120 DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
121 #if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
122 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
123 DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
124
125 TRACE_EVENT_MAP(balance_dirty_written,
126
127 writeback_balance_dirty_written,
128
129 TP_PROTO(struct backing_dev_info *bdi, int written),
130
131 TP_ARGS(bdi, written),
132
133 TP_STRUCT__entry(
134 __array(char, name, 32)
135 __field(int, written)
136 ),
137
138 TP_fast_assign(
139 tp_memcpy(name, dev_name(bdi->dev), 32)
140 tp_assign(written, written)
141 ),
142
143 TP_printk("bdi %s written %d",
144 __entry->name,
145 __entry->written
146 )
147 )
148 #endif
149
150 DECLARE_EVENT_CLASS(writeback_wbc_class,
151 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
152 TP_ARGS(wbc, bdi),
153 TP_STRUCT__entry(
154 __array(char, name, 32)
155 __field(long, nr_to_write)
156 __field(long, pages_skipped)
157 __field(int, sync_mode)
158 __field(int, for_kupdate)
159 __field(int, for_background)
160 __field(int, for_reclaim)
161 __field(int, range_cyclic)
162 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
163 __field(int, more_io)
164 __field(unsigned long, older_than_this)
165 #endif
166 __field(long, range_start)
167 __field(long, range_end)
168 ),
169
170 TP_fast_assign(
171 tp_memcpy(name, dev_name(bdi->dev), 32)
172 tp_assign(nr_to_write, wbc->nr_to_write)
173 tp_assign(pages_skipped, wbc->pages_skipped)
174 tp_assign(sync_mode, wbc->sync_mode)
175 tp_assign(for_kupdate, wbc->for_kupdate)
176 tp_assign(for_background, wbc->for_background)
177 tp_assign(for_reclaim, wbc->for_reclaim)
178 tp_assign(range_cyclic, wbc->range_cyclic)
179 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
180 tp_assign(more_io, wbc->more_io)
181 tp_assign(older_than_this, wbc->older_than_this ?
182 *wbc->older_than_this : 0)
183 #endif
184 tp_assign(range_start, (long)wbc->range_start)
185 tp_assign(range_end, (long)wbc->range_end)
186 ),
187
188 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
189 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
190 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
191 #else
192 "bgrd=%d reclm=%d cyclic=%d "
193 #endif
194 "start=0x%lx end=0x%lx",
195 __entry->name,
196 __entry->nr_to_write,
197 __entry->pages_skipped,
198 __entry->sync_mode,
199 __entry->for_kupdate,
200 __entry->for_background,
201 __entry->for_reclaim,
202 __entry->range_cyclic,
203 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
204 __entry->more_io,
205 __entry->older_than_this,
206 #endif
207 __entry->range_start,
208 __entry->range_end)
209 )
210
211 #undef DEFINE_WBC_EVENT
212 #define DEFINE_WBC_EVENT(name, map) \
213 DEFINE_EVENT_MAP(writeback_wbc_class, name, map, \
214 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
215 TP_ARGS(wbc, bdi))
216 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
217 DEFINE_WBC_EVENT(wbc_writeback_start, writeback_wbc_writeback_start)
218 DEFINE_WBC_EVENT(wbc_writeback_written, writeback_wbc_writeback_written)
219 DEFINE_WBC_EVENT(wbc_writeback_wait, writeback_wbc_writeback_wait)
220 DEFINE_WBC_EVENT(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
221 DEFINE_WBC_EVENT(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
222 DEFINE_WBC_EVENT(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
223 #endif
224 DEFINE_WBC_EVENT(wbc_writepage, writeback_wbc_writepage)
225
226 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
227 TRACE_EVENT(writeback_queue_io,
228 TP_PROTO(struct bdi_writeback *wb,
229 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
230 struct wb_writeback_work *work,
231 #else
232 unsigned long *older_than_this,
233 #endif
234 int moved),
235 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
236 TP_ARGS(wb, work, moved),
237 #else
238 TP_ARGS(wb, older_than_this, moved),
239 #endif
240 TP_STRUCT__entry(
241 __array(char, name, 32)
242 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
243 #else
244 __field(unsigned long, older)
245 __field(long, age)
246 #endif
247 __field(int, moved)
248 ),
249 TP_fast_assign(
250 tp_memcpy(name, dev_name(wb->bdi->dev), 32)
251 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
252 #else
253 tp_assign(older, older_than_this ? *older_than_this : 0)
254 tp_assign(age, older_than_this ?
255 (jiffies - *older_than_this) * 1000 / HZ : -1)
256 #endif
257 tp_assign(moved, moved)
258 ),
259 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
260 TP_printk("bdi %s: enqueue=%d",
261 __entry->name,
262 __entry->moved,
263 )
264 #else
265 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
266 __entry->name,
267 __entry->older, /* older_than_this in jiffies */
268 __entry->age, /* older_than_this in relative milliseconds */
269 __entry->moved
270 )
271 #endif
272 )
273
274 TRACE_EVENT_MAP(global_dirty_state,
275
276 writeback_global_dirty_state,
277
278 TP_PROTO(unsigned long background_thresh,
279 unsigned long dirty_thresh
280 ),
281
282 TP_ARGS(background_thresh,
283 dirty_thresh
284 ),
285
286 TP_STRUCT__entry(
287 __field(unsigned long, nr_dirty)
288 __field(unsigned long, nr_writeback)
289 __field(unsigned long, nr_unstable)
290 __field(unsigned long, background_thresh)
291 __field(unsigned long, dirty_thresh)
292 __field(unsigned long, dirty_limit)
293 __field(unsigned long, nr_dirtied)
294 __field(unsigned long, nr_written)
295 ),
296
297 TP_fast_assign(
298 tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
299 tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
300 tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
301 tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
302 tp_assign(nr_written, global_page_state(NR_WRITTEN))
303 tp_assign(background_thresh, background_thresh)
304 tp_assign(dirty_thresh, dirty_thresh)
305 tp_assign(dirty_limit, global_dirty_limit)
306 ),
307
308 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
309 "bg_thresh=%lu thresh=%lu limit=%lu "
310 "dirtied=%lu written=%lu",
311 __entry->nr_dirty,
312 __entry->nr_writeback,
313 __entry->nr_unstable,
314 __entry->background_thresh,
315 __entry->dirty_thresh,
316 __entry->dirty_limit,
317 __entry->nr_dirtied,
318 __entry->nr_written
319 )
320 )
321 #endif
322
323 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
324
325 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
326
327 TRACE_EVENT_MAP(bdi_dirty_ratelimit,
328
329 writeback_bdi_dirty_ratelimit,
330
331 TP_PROTO(struct backing_dev_info *bdi,
332 unsigned long dirty_rate,
333 unsigned long task_ratelimit),
334
335 TP_ARGS(bdi, dirty_rate, task_ratelimit),
336
337 TP_STRUCT__entry(
338 __array(char, bdi, 32)
339 __field(unsigned long, write_bw)
340 __field(unsigned long, avg_write_bw)
341 __field(unsigned long, dirty_rate)
342 __field(unsigned long, dirty_ratelimit)
343 __field(unsigned long, task_ratelimit)
344 __field(unsigned long, balanced_dirty_ratelimit)
345 ),
346
347 TP_fast_assign(
348 tp_memcpy(bdi, dev_name(bdi->dev), 32)
349 tp_assign(write_bw, KBps(bdi->write_bandwidth))
350 tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
351 tp_assign(dirty_rate, KBps(dirty_rate))
352 tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
353 tp_assign(task_ratelimit, KBps(task_ratelimit))
354 tp_assign(balanced_dirty_ratelimit,
355 KBps(bdi->balanced_dirty_ratelimit))
356 ),
357
358 TP_printk("bdi %s: "
359 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
360 "dirty_ratelimit=%lu task_ratelimit=%lu "
361 "balanced_dirty_ratelimit=%lu",
362 __entry->bdi,
363 __entry->write_bw, /* write bandwidth */
364 __entry->avg_write_bw, /* avg write bandwidth */
365 __entry->dirty_rate, /* bdi dirty rate */
366 __entry->dirty_ratelimit, /* base ratelimit */
367 __entry->task_ratelimit, /* ratelimit with position control */
368 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
369 )
370 )
371
372 TRACE_EVENT_MAP(balance_dirty_pages,
373
374 writeback_balance_dirty_pages,
375
376 TP_PROTO(struct backing_dev_info *bdi,
377 unsigned long thresh,
378 unsigned long bg_thresh,
379 unsigned long dirty,
380 unsigned long bdi_thresh,
381 unsigned long bdi_dirty,
382 unsigned long dirty_ratelimit,
383 unsigned long task_ratelimit,
384 unsigned long dirtied,
385 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
386 unsigned long period,
387 #endif
388 long pause,
389 unsigned long start_time),
390
391 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
392 dirty_ratelimit, task_ratelimit,
393 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
394 dirtied, period, pause, start_time),
395 #else
396 dirtied, pause, start_time),
397 #endif
398 TP_STRUCT__entry(
399 __array( char, bdi, 32)
400 __field(unsigned long, limit)
401 __field(unsigned long, setpoint)
402 __field(unsigned long, dirty)
403 __field(unsigned long, bdi_setpoint)
404 __field(unsigned long, bdi_dirty)
405 __field(unsigned long, dirty_ratelimit)
406 __field(unsigned long, task_ratelimit)
407 __field(unsigned int, dirtied)
408 __field(unsigned int, dirtied_pause)
409 __field(unsigned long, paused)
410 __field( long, pause)
411 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
412 __field(unsigned long, period)
413 __field( long, think)
414 #endif
415 ),
416
417 TP_fast_assign(
418 tp_memcpy(bdi, dev_name(bdi->dev), 32)
419 tp_assign(limit, global_dirty_limit)
420 tp_assign(setpoint,
421 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
422 tp_assign(dirty, dirty)
423 tp_assign(bdi_setpoint,
424 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
425 bdi_thresh / (thresh + 1))
426 tp_assign(bdi_dirty, bdi_dirty)
427 tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
428 tp_assign(task_ratelimit, KBps(task_ratelimit))
429 tp_assign(dirtied, dirtied)
430 tp_assign(dirtied_pause, current->nr_dirtied_pause)
431 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
432 tp_assign(think, current->dirty_paused_when == 0 ? 0 :
433 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
434 tp_assign(period, period * 1000 / HZ)
435 #endif
436 tp_assign(pause, pause * 1000 / HZ)
437 tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
438 ),
439
440
441 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
442 TP_printk("bdi %s: "
443 "limit=%lu setpoint=%lu dirty=%lu "
444 "bdi_setpoint=%lu bdi_dirty=%lu "
445 "dirty_ratelimit=%lu task_ratelimit=%lu "
446 "dirtied=%u dirtied_pause=%u "
447 "paused=%lu pause=%ld period=%lu think=%ld",
448 __entry->bdi,
449 __entry->limit,
450 __entry->setpoint,
451 __entry->dirty,
452 __entry->bdi_setpoint,
453 __entry->bdi_dirty,
454 __entry->dirty_ratelimit,
455 __entry->task_ratelimit,
456 __entry->dirtied,
457 __entry->dirtied_pause,
458 __entry->paused, /* ms */
459 __entry->pause, /* ms */
460 __entry->period, /* ms */
461 __entry->think /* ms */
462 )
463 #else
464 TP_printk("bdi %s: "
465 "limit=%lu setpoint=%lu dirty=%lu "
466 "bdi_setpoint=%lu bdi_dirty=%lu "
467 "dirty_ratelimit=%lu task_ratelimit=%lu "
468 "dirtied=%u dirtied_pause=%u "
469 "paused=%lu pause=%ld",
470 __entry->bdi,
471 __entry->limit,
472 __entry->setpoint,
473 __entry->dirty,
474 __entry->bdi_setpoint,
475 __entry->bdi_dirty,
476 __entry->dirty_ratelimit,
477 __entry->task_ratelimit,
478 __entry->dirtied,
479 __entry->dirtied_pause,
480 __entry->paused, /* ms */
481 __entry->pause /* ms */
482 )
483 #endif
484 )
485 #endif
486
487 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
488 TRACE_EVENT(writeback_sb_inodes_requeue,
489
490 TP_PROTO(struct inode *inode),
491 TP_ARGS(inode),
492
493 TP_STRUCT__entry(
494 __array(char, name, 32)
495 __field(unsigned long, ino)
496 __field(unsigned long, state)
497 __field(unsigned long, dirtied_when)
498 ),
499
500 TP_fast_assign(
501 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
502 tp_assign(ino, inode->i_ino)
503 tp_assign(state, inode->i_state)
504 tp_assign(dirtied_when, inode->dirtied_when)
505 ),
506
507 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
508 __entry->name,
509 __entry->ino,
510 show_inode_state(__entry->state),
511 __entry->dirtied_when,
512 (jiffies - __entry->dirtied_when) / HZ
513 )
514 )
515 #endif
516
517 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
518 DECLARE_EVENT_CLASS(writeback_congest_waited_template,
519
520 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
521
522 TP_ARGS(usec_timeout, usec_delayed),
523
524 TP_STRUCT__entry(
525 __field( unsigned int, usec_timeout )
526 __field( unsigned int, usec_delayed )
527 ),
528
529 TP_fast_assign(
530 tp_assign(usec_timeout, usec_timeout)
531 tp_assign(usec_delayed, usec_delayed)
532 ),
533
534 TP_printk("usec_timeout=%u usec_delayed=%u",
535 __entry->usec_timeout,
536 __entry->usec_delayed)
537 )
538
539 DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
540
541 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
542
543 TP_ARGS(usec_timeout, usec_delayed)
544 )
545
546 DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
547
548 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
549
550 TP_ARGS(usec_timeout, usec_delayed)
551 )
552 #endif
553
554 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
555 DECLARE_EVENT_CLASS(writeback_single_inode_template,
556
557 TP_PROTO(struct inode *inode,
558 struct writeback_control *wbc,
559 unsigned long nr_to_write
560 ),
561
562 TP_ARGS(inode, wbc, nr_to_write),
563
564 TP_STRUCT__entry(
565 __array(char, name, 32)
566 __field(unsigned long, ino)
567 __field(unsigned long, state)
568 __field(unsigned long, dirtied_when)
569 __field(unsigned long, writeback_index)
570 __field(long, nr_to_write)
571 __field(unsigned long, wrote)
572 ),
573
574 TP_fast_assign(
575 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
576 tp_assign(ino, inode->i_ino)
577 tp_assign(state, inode->i_state)
578 tp_assign(dirtied_when, inode->dirtied_when)
579 tp_assign(writeback_index, inode->i_mapping->writeback_index)
580 tp_assign(nr_to_write, nr_to_write)
581 tp_assign(wrote, nr_to_write - wbc->nr_to_write)
582 ),
583
584 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
585 "index=%lu to_write=%ld wrote=%lu",
586 __entry->name,
587 __entry->ino,
588 show_inode_state(__entry->state),
589 __entry->dirtied_when,
590 (jiffies - __entry->dirtied_when) / HZ,
591 __entry->writeback_index,
592 __entry->nr_to_write,
593 __entry->wrote
594 )
595 )
596
597 #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
598 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue,
599 TP_PROTO(struct inode *inode,
600 struct writeback_control *wbc,
601 unsigned long nr_to_write),
602 TP_ARGS(inode, wbc, nr_to_write)
603 )
604 #endif
605
606 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
607 TP_PROTO(struct inode *inode,
608 struct writeback_control *wbc,
609 unsigned long nr_to_write),
610 TP_ARGS(inode, wbc, nr_to_write)
611 )
612 #endif
613
614 #endif /* _TRACE_WRITEBACK_H */
615
616 /* This part must be outside protection */
617 #include "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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