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