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