1
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM writeback
4
5#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_WRITEBACK_H
7
8#include <linux/tracepoint.h>
9#include <linux/backing-dev.h>
10#include <linux/writeback.h>
11
12#define show_inode_state(state) \
13 __print_flags(state, "|", \
14 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
15 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
16 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
17 {I_NEW, "I_NEW"}, \
18 {I_WILL_FREE, "I_WILL_FREE"}, \
19 {I_FREEING, "I_FREEING"}, \
20 {I_CLEAR, "I_CLEAR"}, \
21 {I_SYNC, "I_SYNC"}, \
22 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
23 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
24 {I_REFERENCED, "I_REFERENCED"} \
25 )
26
27
28#undef EM
29#undef EMe
30#define EM(a,b) TRACE_DEFINE_ENUM(a);
31#define EMe(a,b) TRACE_DEFINE_ENUM(a);
32
33#define WB_WORK_REASON \
34 EM( WB_REASON_BACKGROUND, "background") \
35 EM( WB_REASON_VMSCAN, "vmscan") \
36 EM( WB_REASON_SYNC, "sync") \
37 EM( WB_REASON_PERIODIC, "periodic") \
38 EM( WB_REASON_LAPTOP_TIMER, "laptop_timer") \
39 EM( WB_REASON_FREE_MORE_MEM, "free_more_memory") \
40 EM( WB_REASON_FS_FREE_SPACE, "fs_free_space") \
41 EMe(WB_REASON_FORKER_THREAD, "forker_thread")
42
43WB_WORK_REASON
44
45
46
47
48
49#undef EM
50#undef EMe
51#define EM(a,b) { a, b },
52#define EMe(a,b) { a, b }
53
54struct wb_writeback_work;
55
56DECLARE_EVENT_CLASS(writeback_page_template,
57
58 TP_PROTO(struct page *page, struct address_space *mapping),
59
60 TP_ARGS(page, mapping),
61
62 TP_STRUCT__entry (
63 __array(char, name, 32)
64 __field(ino_t, ino)
65 __field(pgoff_t, index)
66 ),
67
68 TP_fast_assign(
69 strscpy_pad(__entry->name,
70 bdi_dev_name(mapping ? inode_to_bdi(mapping->host) :
71 NULL), 32);
72 __entry->ino = mapping ? mapping->host->i_ino : 0;
73 __entry->index = page->index;
74 ),
75
76 TP_printk("bdi %s: ino=%lu index=%lu",
77 __entry->name,
78 (unsigned long)__entry->ino,
79 __entry->index
80 )
81);
82
83DEFINE_EVENT(writeback_page_template, writeback_dirty_page,
84
85 TP_PROTO(struct page *page, struct address_space *mapping),
86
87 TP_ARGS(page, mapping)
88);
89
90DEFINE_EVENT(writeback_page_template, wait_on_page_writeback,
91
92 TP_PROTO(struct page *page, struct address_space *mapping),
93
94 TP_ARGS(page, mapping)
95);
96
97DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
98
99 TP_PROTO(struct inode *inode, int flags),
100
101 TP_ARGS(inode, flags),
102
103 TP_STRUCT__entry (
104 __array(char, name, 32)
105 __field(ino_t, ino)
106 __field(unsigned long, state)
107 __field(unsigned long, flags)
108 ),
109
110 TP_fast_assign(
111 struct backing_dev_info *bdi = inode_to_bdi(inode);
112
113
114 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
115 __entry->ino = inode->i_ino;
116 __entry->state = inode->i_state;
117 __entry->flags = flags;
118 ),
119
120 TP_printk("bdi %s: ino=%lu state=%s flags=%s",
121 __entry->name,
122 (unsigned long)__entry->ino,
123 show_inode_state(__entry->state),
124 show_inode_state(__entry->flags)
125 )
126);
127
128DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty,
129
130 TP_PROTO(struct inode *inode, int flags),
131
132 TP_ARGS(inode, flags)
133);
134
135DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,
136
137 TP_PROTO(struct inode *inode, int flags),
138
139 TP_ARGS(inode, flags)
140);
141
142DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
143
144 TP_PROTO(struct inode *inode, int flags),
145
146 TP_ARGS(inode, flags)
147);
148
149#ifdef CREATE_TRACE_POINTS
150#ifdef CONFIG_CGROUP_WRITEBACK
151
152static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
153{
154 return cgroup_ino(wb->memcg_css->cgroup);
155}
156
157static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
158{
159 if (wbc->wb)
160 return __trace_wb_assign_cgroup(wbc->wb);
161 else
162 return 1;
163}
164#else
165
166static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
167{
168 return 1;
169}
170
171static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
172{
173 return 1;
174}
175
176#endif
177#endif
178
179#ifdef CONFIG_CGROUP_WRITEBACK
180TRACE_EVENT(inode_foreign_history,
181
182 TP_PROTO(struct inode *inode, struct writeback_control *wbc,
183 unsigned int history),
184
185 TP_ARGS(inode, wbc, history),
186
187 TP_STRUCT__entry(
188 __array(char, name, 32)
189 __field(ino_t, ino)
190 __field(ino_t, cgroup_ino)
191 __field(unsigned int, history)
192 ),
193
194 TP_fast_assign(
195 strncpy(__entry->name, bdi_dev_name(inode_to_bdi(inode)), 32);
196 __entry->ino = inode->i_ino;
197 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
198 __entry->history = history;
199 ),
200
201 TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x",
202 __entry->name,
203 (unsigned long)__entry->ino,
204 (unsigned long)__entry->cgroup_ino,
205 __entry->history
206 )
207);
208
209TRACE_EVENT(inode_switch_wbs,
210
211 TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb,
212 struct bdi_writeback *new_wb),
213
214 TP_ARGS(inode, old_wb, new_wb),
215
216 TP_STRUCT__entry(
217 __array(char, name, 32)
218 __field(ino_t, ino)
219 __field(ino_t, old_cgroup_ino)
220 __field(ino_t, new_cgroup_ino)
221 ),
222
223 TP_fast_assign(
224 strncpy(__entry->name, bdi_dev_name(old_wb->bdi), 32);
225 __entry->ino = inode->i_ino;
226 __entry->old_cgroup_ino = __trace_wb_assign_cgroup(old_wb);
227 __entry->new_cgroup_ino = __trace_wb_assign_cgroup(new_wb);
228 ),
229
230 TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu",
231 __entry->name,
232 (unsigned long)__entry->ino,
233 (unsigned long)__entry->old_cgroup_ino,
234 (unsigned long)__entry->new_cgroup_ino
235 )
236);
237
238TRACE_EVENT(track_foreign_dirty,
239
240 TP_PROTO(struct page *page, struct bdi_writeback *wb),
241
242 TP_ARGS(page, wb),
243
244 TP_STRUCT__entry(
245 __array(char, name, 32)
246 __field(u64, bdi_id)
247 __field(ino_t, ino)
248 __field(unsigned int, memcg_id)
249 __field(ino_t, cgroup_ino)
250 __field(ino_t, page_cgroup_ino)
251 ),
252
253 TP_fast_assign(
254 struct address_space *mapping = page_mapping(page);
255 struct inode *inode = mapping ? mapping->host : NULL;
256
257 strncpy(__entry->name, bdi_dev_name(wb->bdi), 32);
258 __entry->bdi_id = wb->bdi->id;
259 __entry->ino = inode ? inode->i_ino : 0;
260 __entry->memcg_id = wb->memcg_css->id;
261 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
262 __entry->page_cgroup_ino = cgroup_ino(page->mem_cgroup->css.cgroup);
263 ),
264
265 TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu",
266 __entry->name,
267 __entry->bdi_id,
268 (unsigned long)__entry->ino,
269 __entry->memcg_id,
270 (unsigned long)__entry->cgroup_ino,
271 (unsigned long)__entry->page_cgroup_ino
272 )
273);
274
275TRACE_EVENT(flush_foreign,
276
277 TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id,
278 unsigned int frn_memcg_id),
279
280 TP_ARGS(wb, frn_bdi_id, frn_memcg_id),
281
282 TP_STRUCT__entry(
283 __array(char, name, 32)
284 __field(ino_t, cgroup_ino)
285 __field(unsigned int, frn_bdi_id)
286 __field(unsigned int, frn_memcg_id)
287 ),
288
289 TP_fast_assign(
290 strncpy(__entry->name, bdi_dev_name(wb->bdi), 32);
291 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
292 __entry->frn_bdi_id = frn_bdi_id;
293 __entry->frn_memcg_id = frn_memcg_id;
294 ),
295
296 TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u",
297 __entry->name,
298 (unsigned long)__entry->cgroup_ino,
299 __entry->frn_bdi_id,
300 __entry->frn_memcg_id
301 )
302);
303#endif
304
305DECLARE_EVENT_CLASS(writeback_write_inode_template,
306
307 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
308
309 TP_ARGS(inode, wbc),
310
311 TP_STRUCT__entry (
312 __array(char, name, 32)
313 __field(ino_t, ino)
314 __field(int, sync_mode)
315 __field(ino_t, cgroup_ino)
316 ),
317
318 TP_fast_assign(
319 strscpy_pad(__entry->name,
320 bdi_dev_name(inode_to_bdi(inode)), 32);
321 __entry->ino = inode->i_ino;
322 __entry->sync_mode = wbc->sync_mode;
323 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
324 ),
325
326 TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu",
327 __entry->name,
328 (unsigned long)__entry->ino,
329 __entry->sync_mode,
330 (unsigned long)__entry->cgroup_ino
331 )
332);
333
334DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,
335
336 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
337
338 TP_ARGS(inode, wbc)
339);
340
341DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,
342
343 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
344
345 TP_ARGS(inode, wbc)
346);
347
348DECLARE_EVENT_CLASS(writeback_work_class,
349 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
350 TP_ARGS(wb, work),
351 TP_STRUCT__entry(
352 __array(char, name, 32)
353 __field(long, nr_pages)
354 __field(dev_t, sb_dev)
355 __field(int, sync_mode)
356 __field(int, for_kupdate)
357 __field(int, range_cyclic)
358 __field(int, for_background)
359 __field(int, reason)
360 __field(ino_t, cgroup_ino)
361 ),
362 TP_fast_assign(
363 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
364 __entry->nr_pages = work->nr_pages;
365 __entry->sb_dev = work->sb ? work->sb->s_dev : 0;
366 __entry->sync_mode = work->sync_mode;
367 __entry->for_kupdate = work->for_kupdate;
368 __entry->range_cyclic = work->range_cyclic;
369 __entry->for_background = work->for_background;
370 __entry->reason = work->reason;
371 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
372 ),
373 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
374 "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%lu",
375 __entry->name,
376 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
377 __entry->nr_pages,
378 __entry->sync_mode,
379 __entry->for_kupdate,
380 __entry->range_cyclic,
381 __entry->for_background,
382 __print_symbolic(__entry->reason, WB_WORK_REASON),
383 (unsigned long)__entry->cgroup_ino
384 )
385);
386#define DEFINE_WRITEBACK_WORK_EVENT(name) \
387DEFINE_EVENT(writeback_work_class, name, \
388 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
389 TP_ARGS(wb, work))
390DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
391DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
392DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
393DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
394DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
395
396TRACE_EVENT(writeback_pages_written,
397 TP_PROTO(long pages_written),
398 TP_ARGS(pages_written),
399 TP_STRUCT__entry(
400 __field(long, pages)
401 ),
402 TP_fast_assign(
403 __entry->pages = pages_written;
404 ),
405 TP_printk("%ld", __entry->pages)
406);
407
408DECLARE_EVENT_CLASS(writeback_class,
409 TP_PROTO(struct bdi_writeback *wb),
410 TP_ARGS(wb),
411 TP_STRUCT__entry(
412 __array(char, name, 32)
413 __field(ino_t, cgroup_ino)
414 ),
415 TP_fast_assign(
416 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
417 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
418 ),
419 TP_printk("bdi %s: cgroup_ino=%lu",
420 __entry->name,
421 (unsigned long)__entry->cgroup_ino
422 )
423);
424#define DEFINE_WRITEBACK_EVENT(name) \
425DEFINE_EVENT(writeback_class, name, \
426 TP_PROTO(struct bdi_writeback *wb), \
427 TP_ARGS(wb))
428
429DEFINE_WRITEBACK_EVENT(writeback_wake_background);
430
431TRACE_EVENT(writeback_bdi_register,
432 TP_PROTO(struct backing_dev_info *bdi),
433 TP_ARGS(bdi),
434 TP_STRUCT__entry(
435 __array(char, name, 32)
436 ),
437 TP_fast_assign(
438 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
439 ),
440 TP_printk("bdi %s",
441 __entry->name
442 )
443);
444
445DECLARE_EVENT_CLASS(wbc_class,
446 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
447 TP_ARGS(wbc, bdi),
448 TP_STRUCT__entry(
449 __array(char, name, 32)
450 __field(long, nr_to_write)
451 __field(long, pages_skipped)
452 __field(int, sync_mode)
453 __field(int, for_kupdate)
454 __field(int, for_background)
455 __field(int, for_reclaim)
456 __field(int, range_cyclic)
457 __field(long, range_start)
458 __field(long, range_end)
459 __field(ino_t, cgroup_ino)
460 ),
461
462 TP_fast_assign(
463 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
464 __entry->nr_to_write = wbc->nr_to_write;
465 __entry->pages_skipped = wbc->pages_skipped;
466 __entry->sync_mode = wbc->sync_mode;
467 __entry->for_kupdate = wbc->for_kupdate;
468 __entry->for_background = wbc->for_background;
469 __entry->for_reclaim = wbc->for_reclaim;
470 __entry->range_cyclic = wbc->range_cyclic;
471 __entry->range_start = (long)wbc->range_start;
472 __entry->range_end = (long)wbc->range_end;
473 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
474 ),
475
476 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
477 "bgrd=%d reclm=%d cyclic=%d "
478 "start=0x%lx end=0x%lx cgroup_ino=%lu",
479 __entry->name,
480 __entry->nr_to_write,
481 __entry->pages_skipped,
482 __entry->sync_mode,
483 __entry->for_kupdate,
484 __entry->for_background,
485 __entry->for_reclaim,
486 __entry->range_cyclic,
487 __entry->range_start,
488 __entry->range_end,
489 (unsigned long)__entry->cgroup_ino
490 )
491)
492
493#define DEFINE_WBC_EVENT(name) \
494DEFINE_EVENT(wbc_class, name, \
495 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
496 TP_ARGS(wbc, bdi))
497DEFINE_WBC_EVENT(wbc_writepage);
498
499TRACE_EVENT(writeback_queue_io,
500 TP_PROTO(struct bdi_writeback *wb,
501 struct wb_writeback_work *work,
502 int moved),
503 TP_ARGS(wb, work, moved),
504 TP_STRUCT__entry(
505 __array(char, name, 32)
506 __field(unsigned long, older)
507 __field(long, age)
508 __field(int, moved)
509 __field(int, reason)
510 __field(ino_t, cgroup_ino)
511 ),
512 TP_fast_assign(
513 unsigned long *older_than_this = work->older_than_this;
514 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
515 __entry->older = older_than_this ? *older_than_this : 0;
516 __entry->age = older_than_this ?
517 (jiffies - *older_than_this) * 1000 / HZ : -1;
518 __entry->moved = moved;
519 __entry->reason = work->reason;
520 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
521 ),
522 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",
523 __entry->name,
524 __entry->older,
525 __entry->age,
526 __entry->moved,
527 __print_symbolic(__entry->reason, WB_WORK_REASON),
528 (unsigned long)__entry->cgroup_ino
529 )
530);
531
532TRACE_EVENT(global_dirty_state,
533
534 TP_PROTO(unsigned long background_thresh,
535 unsigned long dirty_thresh
536 ),
537
538 TP_ARGS(background_thresh,
539 dirty_thresh
540 ),
541
542 TP_STRUCT__entry(
543 __field(unsigned long, nr_dirty)
544 __field(unsigned long, nr_writeback)
545 __field(unsigned long, nr_unstable)
546 __field(unsigned long, background_thresh)
547 __field(unsigned long, dirty_thresh)
548 __field(unsigned long, dirty_limit)
549 __field(unsigned long, nr_dirtied)
550 __field(unsigned long, nr_written)
551 ),
552
553 TP_fast_assign(
554 __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY);
555 __entry->nr_writeback = global_node_page_state(NR_WRITEBACK);
556 __entry->nr_unstable = global_node_page_state(NR_UNSTABLE_NFS);
557 __entry->nr_dirtied = global_node_page_state(NR_DIRTIED);
558 __entry->nr_written = global_node_page_state(NR_WRITTEN);
559 __entry->background_thresh = background_thresh;
560 __entry->dirty_thresh = dirty_thresh;
561 __entry->dirty_limit = global_wb_domain.dirty_limit;
562 ),
563
564 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
565 "bg_thresh=%lu thresh=%lu limit=%lu "
566 "dirtied=%lu written=%lu",
567 __entry->nr_dirty,
568 __entry->nr_writeback,
569 __entry->nr_unstable,
570 __entry->background_thresh,
571 __entry->dirty_thresh,
572 __entry->dirty_limit,
573 __entry->nr_dirtied,
574 __entry->nr_written
575 )
576);
577
578#define KBps(x) ((x) << (PAGE_SHIFT - 10))
579
580TRACE_EVENT(bdi_dirty_ratelimit,
581
582 TP_PROTO(struct bdi_writeback *wb,
583 unsigned long dirty_rate,
584 unsigned long task_ratelimit),
585
586 TP_ARGS(wb, dirty_rate, task_ratelimit),
587
588 TP_STRUCT__entry(
589 __array(char, bdi, 32)
590 __field(unsigned long, write_bw)
591 __field(unsigned long, avg_write_bw)
592 __field(unsigned long, dirty_rate)
593 __field(unsigned long, dirty_ratelimit)
594 __field(unsigned long, task_ratelimit)
595 __field(unsigned long, balanced_dirty_ratelimit)
596 __field(ino_t, cgroup_ino)
597 ),
598
599 TP_fast_assign(
600 strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
601 __entry->write_bw = KBps(wb->write_bandwidth);
602 __entry->avg_write_bw = KBps(wb->avg_write_bandwidth);
603 __entry->dirty_rate = KBps(dirty_rate);
604 __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit);
605 __entry->task_ratelimit = KBps(task_ratelimit);
606 __entry->balanced_dirty_ratelimit =
607 KBps(wb->balanced_dirty_ratelimit);
608 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
609 ),
610
611 TP_printk("bdi %s: "
612 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
613 "dirty_ratelimit=%lu task_ratelimit=%lu "
614 "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",
615 __entry->bdi,
616 __entry->write_bw,
617 __entry->avg_write_bw,
618 __entry->dirty_rate,
619 __entry->dirty_ratelimit,
620 __entry->task_ratelimit,
621 __entry->balanced_dirty_ratelimit,
622 (unsigned long)__entry->cgroup_ino
623 )
624);
625
626TRACE_EVENT(balance_dirty_pages,
627
628 TP_PROTO(struct bdi_writeback *wb,
629 unsigned long thresh,
630 unsigned long bg_thresh,
631 unsigned long dirty,
632 unsigned long bdi_thresh,
633 unsigned long bdi_dirty,
634 unsigned long dirty_ratelimit,
635 unsigned long task_ratelimit,
636 unsigned long dirtied,
637 unsigned long period,
638 long pause,
639 unsigned long start_time),
640
641 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
642 dirty_ratelimit, task_ratelimit,
643 dirtied, period, pause, start_time),
644
645 TP_STRUCT__entry(
646 __array( char, bdi, 32)
647 __field(unsigned long, limit)
648 __field(unsigned long, setpoint)
649 __field(unsigned long, dirty)
650 __field(unsigned long, bdi_setpoint)
651 __field(unsigned long, bdi_dirty)
652 __field(unsigned long, dirty_ratelimit)
653 __field(unsigned long, task_ratelimit)
654 __field(unsigned int, dirtied)
655 __field(unsigned int, dirtied_pause)
656 __field(unsigned long, paused)
657 __field( long, pause)
658 __field(unsigned long, period)
659 __field( long, think)
660 __field(ino_t, cgroup_ino)
661 ),
662
663 TP_fast_assign(
664 unsigned long freerun = (thresh + bg_thresh) / 2;
665 strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
666
667 __entry->limit = global_wb_domain.dirty_limit;
668 __entry->setpoint = (global_wb_domain.dirty_limit +
669 freerun) / 2;
670 __entry->dirty = dirty;
671 __entry->bdi_setpoint = __entry->setpoint *
672 bdi_thresh / (thresh + 1);
673 __entry->bdi_dirty = bdi_dirty;
674 __entry->dirty_ratelimit = KBps(dirty_ratelimit);
675 __entry->task_ratelimit = KBps(task_ratelimit);
676 __entry->dirtied = dirtied;
677 __entry->dirtied_pause = current->nr_dirtied_pause;
678 __entry->think = current->dirty_paused_when == 0 ? 0 :
679 (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
680 __entry->period = period * 1000 / HZ;
681 __entry->pause = pause * 1000 / HZ;
682 __entry->paused = (jiffies - start_time) * 1000 / HZ;
683 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
684 ),
685
686
687 TP_printk("bdi %s: "
688 "limit=%lu setpoint=%lu dirty=%lu "
689 "bdi_setpoint=%lu bdi_dirty=%lu "
690 "dirty_ratelimit=%lu task_ratelimit=%lu "
691 "dirtied=%u dirtied_pause=%u "
692 "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",
693 __entry->bdi,
694 __entry->limit,
695 __entry->setpoint,
696 __entry->dirty,
697 __entry->bdi_setpoint,
698 __entry->bdi_dirty,
699 __entry->dirty_ratelimit,
700 __entry->task_ratelimit,
701 __entry->dirtied,
702 __entry->dirtied_pause,
703 __entry->paused,
704 __entry->pause,
705 __entry->period,
706 __entry->think,
707 (unsigned long)__entry->cgroup_ino
708 )
709);
710
711TRACE_EVENT(writeback_sb_inodes_requeue,
712
713 TP_PROTO(struct inode *inode),
714 TP_ARGS(inode),
715
716 TP_STRUCT__entry(
717 __array(char, name, 32)
718 __field(ino_t, ino)
719 __field(unsigned long, state)
720 __field(unsigned long, dirtied_when)
721 __field(ino_t, cgroup_ino)
722 ),
723
724 TP_fast_assign(
725 strscpy_pad(__entry->name,
726 bdi_dev_name(inode_to_bdi(inode)), 32);
727 __entry->ino = inode->i_ino;
728 __entry->state = inode->i_state;
729 __entry->dirtied_when = inode->dirtied_when;
730 __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode));
731 ),
732
733 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",
734 __entry->name,
735 (unsigned long)__entry->ino,
736 show_inode_state(__entry->state),
737 __entry->dirtied_when,
738 (jiffies - __entry->dirtied_when) / HZ,
739 (unsigned long)__entry->cgroup_ino
740 )
741);
742
743DECLARE_EVENT_CLASS(writeback_congest_waited_template,
744
745 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
746
747 TP_ARGS(usec_timeout, usec_delayed),
748
749 TP_STRUCT__entry(
750 __field( unsigned int, usec_timeout )
751 __field( unsigned int, usec_delayed )
752 ),
753
754 TP_fast_assign(
755 __entry->usec_timeout = usec_timeout;
756 __entry->usec_delayed = usec_delayed;
757 ),
758
759 TP_printk("usec_timeout=%u usec_delayed=%u",
760 __entry->usec_timeout,
761 __entry->usec_delayed)
762);
763
764DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
765
766 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
767
768 TP_ARGS(usec_timeout, usec_delayed)
769);
770
771DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
772
773 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
774
775 TP_ARGS(usec_timeout, usec_delayed)
776);
777
778DECLARE_EVENT_CLASS(writeback_single_inode_template,
779
780 TP_PROTO(struct inode *inode,
781 struct writeback_control *wbc,
782 unsigned long nr_to_write
783 ),
784
785 TP_ARGS(inode, wbc, nr_to_write),
786
787 TP_STRUCT__entry(
788 __array(char, name, 32)
789 __field(ino_t, ino)
790 __field(unsigned long, state)
791 __field(unsigned long, dirtied_when)
792 __field(unsigned long, writeback_index)
793 __field(long, nr_to_write)
794 __field(unsigned long, wrote)
795 __field(ino_t, cgroup_ino)
796 ),
797
798 TP_fast_assign(
799 strscpy_pad(__entry->name,
800 bdi_dev_name(inode_to_bdi(inode)), 32);
801 __entry->ino = inode->i_ino;
802 __entry->state = inode->i_state;
803 __entry->dirtied_when = inode->dirtied_when;
804 __entry->writeback_index = inode->i_mapping->writeback_index;
805 __entry->nr_to_write = nr_to_write;
806 __entry->wrote = nr_to_write - wbc->nr_to_write;
807 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
808 ),
809
810 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
811 "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",
812 __entry->name,
813 (unsigned long)__entry->ino,
814 show_inode_state(__entry->state),
815 __entry->dirtied_when,
816 (jiffies - __entry->dirtied_when) / HZ,
817 __entry->writeback_index,
818 __entry->nr_to_write,
819 __entry->wrote,
820 (unsigned long)__entry->cgroup_ino
821 )
822);
823
824DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
825 TP_PROTO(struct inode *inode,
826 struct writeback_control *wbc,
827 unsigned long nr_to_write),
828 TP_ARGS(inode, wbc, nr_to_write)
829);
830
831DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
832 TP_PROTO(struct inode *inode,
833 struct writeback_control *wbc,
834 unsigned long nr_to_write),
835 TP_ARGS(inode, wbc, nr_to_write)
836);
837
838DECLARE_EVENT_CLASS(writeback_inode_template,
839 TP_PROTO(struct inode *inode),
840
841 TP_ARGS(inode),
842
843 TP_STRUCT__entry(
844 __field( dev_t, dev )
845 __field( ino_t, ino )
846 __field(unsigned long, state )
847 __field( __u16, mode )
848 __field(unsigned long, dirtied_when )
849 ),
850
851 TP_fast_assign(
852 __entry->dev = inode->i_sb->s_dev;
853 __entry->ino = inode->i_ino;
854 __entry->state = inode->i_state;
855 __entry->mode = inode->i_mode;
856 __entry->dirtied_when = inode->dirtied_when;
857 ),
858
859 TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",
860 MAJOR(__entry->dev), MINOR(__entry->dev),
861 (unsigned long)__entry->ino, __entry->dirtied_when,
862 show_inode_state(__entry->state), __entry->mode)
863);
864
865DEFINE_EVENT(writeback_inode_template, writeback_lazytime,
866 TP_PROTO(struct inode *inode),
867
868 TP_ARGS(inode)
869);
870
871DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput,
872 TP_PROTO(struct inode *inode),
873
874 TP_ARGS(inode)
875);
876
877DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue,
878
879 TP_PROTO(struct inode *inode),
880
881 TP_ARGS(inode)
882);
883
884
885
886
887
888DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback,
889 TP_PROTO(struct inode *inode),
890 TP_ARGS(inode)
891);
892
893DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback,
894 TP_PROTO(struct inode *inode),
895 TP_ARGS(inode)
896);
897
898#endif
899
900
901#include <trace/define_trace.h>
902
