Line data Source code
1 : /* SPDX-License-Identifier: GPL-2.0 */
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_REFERENCED, "I_REFERENCED"} \
24 : )
25 :
26 : /* enums need to be exported to user space */
27 : #undef EM
28 : #undef EMe
29 : #define EM(a,b) TRACE_DEFINE_ENUM(a);
30 : #define EMe(a,b) TRACE_DEFINE_ENUM(a);
31 :
32 : #define WB_WORK_REASON \
33 : EM( WB_REASON_BACKGROUND, "background") \
34 : EM( WB_REASON_VMSCAN, "vmscan") \
35 : EM( WB_REASON_SYNC, "sync") \
36 : EM( WB_REASON_PERIODIC, "periodic") \
37 : EM( WB_REASON_LAPTOP_TIMER, "laptop_timer") \
38 : EM( WB_REASON_FS_FREE_SPACE, "fs_free_space") \
39 : EM( WB_REASON_FORKER_THREAD, "forker_thread") \
40 : EMe(WB_REASON_FOREIGN_FLUSH, "foreign_flush")
41 :
42 : WB_WORK_REASON
43 :
44 : /*
45 : * Now redefine the EM() and EMe() macros to map the enums to the strings
46 : * that will be printed in the output.
47 : */
48 : #undef EM
49 : #undef EMe
50 : #define EM(a,b) { a, b },
51 : #define EMe(a,b) { a, b }
52 :
53 : struct wb_writeback_work;
54 :
55 0 : DECLARE_EVENT_CLASS(writeback_folio_template,
56 :
57 : TP_PROTO(struct folio *folio, struct address_space *mapping),
58 :
59 : TP_ARGS(folio, 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) ? mapping->host->i_ino : 0;
72 : __entry->index = folio->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 :
82 969096388 : DEFINE_EVENT(writeback_folio_template, writeback_dirty_folio,
83 :
84 : TP_PROTO(struct folio *folio, struct address_space *mapping),
85 :
86 : TP_ARGS(folio, mapping)
87 : );
88 :
89 33142529 : DEFINE_EVENT(writeback_folio_template, folio_wait_writeback,
90 :
91 : TP_PROTO(struct folio *folio, struct address_space *mapping),
92 :
93 : TP_ARGS(folio, mapping)
94 : );
95 :
96 0 : DECLARE_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 : /* may be called for files on pseudo FSes w/ unregistered bdi */
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 :
127 1055458552 : DEFINE_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 :
134 86606002 : DEFINE_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 :
141 86679257 : DEFINE_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 :
151 : static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
152 : {
153 0 : return cgroup_ino(wb->memcg_css->cgroup);
154 : }
155 :
156 : static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
157 : {
158 0 : if (wbc->wb)
159 0 : return __trace_wb_assign_cgroup(wbc->wb);
160 : else
161 : return 1;
162 : }
163 : #else /* CONFIG_CGROUP_WRITEBACK */
164 :
165 : static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
166 : {
167 : return 1;
168 : }
169 :
170 : static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
171 : {
172 : return 1;
173 : }
174 :
175 : #endif /* CONFIG_CGROUP_WRITEBACK */
176 : #endif /* CREATE_TRACE_POINTS */
177 :
178 : #ifdef CONFIG_CGROUP_WRITEBACK
179 984729 : TRACE_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 : strscpy_pad(__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 :
208 2327520 : TRACE_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 : strscpy_pad(__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 :
237 0 : TRACE_EVENT(track_foreign_dirty,
238 :
239 : TP_PROTO(struct folio *folio, struct bdi_writeback *wb),
240 :
241 : TP_ARGS(folio, 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 = folio_mapping(folio);
254 : struct inode *inode = mapping ? mapping->host : NULL;
255 :
256 : strscpy_pad(__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(folio_memcg(folio)->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 :
274 0 : TRACE_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 : strscpy_pad(__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 :
304 0 : DECLARE_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 :
333 882336 : DEFINE_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 :
340 882335 : DEFINE_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 :
347 0 : DECLARE_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) \
386 : DEFINE_EVENT(writeback_work_class, name, \
387 : TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
388 : TP_ARGS(wb, work))
389 3222678 : DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
390 3226716 : DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
391 7677631 : DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
392 7677695 : DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
393 1022 : DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
394 :
395 5589227 : TRACE_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 :
407 0 : DECLARE_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) \
424 : DEFINE_EVENT(writeback_class, name, \
425 : TP_PROTO(struct bdi_writeback *wb), \
426 : TP_ARGS(wb))
427 :
428 737 : DEFINE_WRITEBACK_EVENT(writeback_wake_background);
429 :
430 0 : TRACE_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 :
444 0 : DECLARE_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) \
493 : DEFINE_EVENT(wbc_class, name, \
494 : TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
495 : TP_ARGS(wbc, bdi))
496 692374548 : DEFINE_WBC_EVENT(wbc_writepage);
497 :
498 7647284 : TRACE_EVENT(writeback_queue_io,
499 : TP_PROTO(struct bdi_writeback *wb,
500 : struct wb_writeback_work *work,
501 : unsigned long dirtied_before,
502 : int moved),
503 : TP_ARGS(wb, work, dirtied_before, 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 : strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
514 : __entry->older = dirtied_before;
515 : __entry->age = (jiffies - dirtied_before) * 1000 / HZ;
516 : __entry->moved = moved;
517 : __entry->reason = work->reason;
518 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
519 : ),
520 : TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",
521 : __entry->name,
522 : __entry->older, /* dirtied_before in jiffies */
523 : __entry->age, /* dirtied_before in relative milliseconds */
524 : __entry->moved,
525 : __print_symbolic(__entry->reason, WB_WORK_REASON),
526 : (unsigned long)__entry->cgroup_ino
527 : )
528 : );
529 :
530 9360713 : TRACE_EVENT(global_dirty_state,
531 :
532 : TP_PROTO(unsigned long background_thresh,
533 : unsigned long dirty_thresh
534 : ),
535 :
536 : TP_ARGS(background_thresh,
537 : dirty_thresh
538 : ),
539 :
540 : TP_STRUCT__entry(
541 : __field(unsigned long, nr_dirty)
542 : __field(unsigned long, nr_writeback)
543 : __field(unsigned long, background_thresh)
544 : __field(unsigned long, dirty_thresh)
545 : __field(unsigned long, dirty_limit)
546 : __field(unsigned long, nr_dirtied)
547 : __field(unsigned long, nr_written)
548 : ),
549 :
550 : TP_fast_assign(
551 : __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY);
552 : __entry->nr_writeback = global_node_page_state(NR_WRITEBACK);
553 : __entry->nr_dirtied = global_node_page_state(NR_DIRTIED);
554 : __entry->nr_written = global_node_page_state(NR_WRITTEN);
555 : __entry->background_thresh = background_thresh;
556 : __entry->dirty_thresh = dirty_thresh;
557 : __entry->dirty_limit = global_wb_domain.dirty_limit;
558 : ),
559 :
560 : TP_printk("dirty=%lu writeback=%lu "
561 : "bg_thresh=%lu thresh=%lu limit=%lu "
562 : "dirtied=%lu written=%lu",
563 : __entry->nr_dirty,
564 : __entry->nr_writeback,
565 : __entry->background_thresh,
566 : __entry->dirty_thresh,
567 : __entry->dirty_limit,
568 : __entry->nr_dirtied,
569 : __entry->nr_written
570 : )
571 : );
572 :
573 : #define KBps(x) ((x) << (PAGE_SHIFT - 10))
574 :
575 37719 : TRACE_EVENT(bdi_dirty_ratelimit,
576 :
577 : TP_PROTO(struct bdi_writeback *wb,
578 : unsigned long dirty_rate,
579 : unsigned long task_ratelimit),
580 :
581 : TP_ARGS(wb, dirty_rate, task_ratelimit),
582 :
583 : TP_STRUCT__entry(
584 : __array(char, bdi, 32)
585 : __field(unsigned long, write_bw)
586 : __field(unsigned long, avg_write_bw)
587 : __field(unsigned long, dirty_rate)
588 : __field(unsigned long, dirty_ratelimit)
589 : __field(unsigned long, task_ratelimit)
590 : __field(unsigned long, balanced_dirty_ratelimit)
591 : __field(ino_t, cgroup_ino)
592 : ),
593 :
594 : TP_fast_assign(
595 : strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
596 : __entry->write_bw = KBps(wb->write_bandwidth);
597 : __entry->avg_write_bw = KBps(wb->avg_write_bandwidth);
598 : __entry->dirty_rate = KBps(dirty_rate);
599 : __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit);
600 : __entry->task_ratelimit = KBps(task_ratelimit);
601 : __entry->balanced_dirty_ratelimit =
602 : KBps(wb->balanced_dirty_ratelimit);
603 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
604 : ),
605 :
606 : TP_printk("bdi %s: "
607 : "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
608 : "dirty_ratelimit=%lu task_ratelimit=%lu "
609 : "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",
610 : __entry->bdi,
611 : __entry->write_bw, /* write bandwidth */
612 : __entry->avg_write_bw, /* avg write bandwidth */
613 : __entry->dirty_rate, /* bdi dirty rate */
614 : __entry->dirty_ratelimit, /* base ratelimit */
615 : __entry->task_ratelimit, /* ratelimit with position control */
616 : __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */
617 : (unsigned long)__entry->cgroup_ino
618 : )
619 : );
620 :
621 631631 : TRACE_EVENT(balance_dirty_pages,
622 :
623 : TP_PROTO(struct bdi_writeback *wb,
624 : unsigned long thresh,
625 : unsigned long bg_thresh,
626 : unsigned long dirty,
627 : unsigned long bdi_thresh,
628 : unsigned long bdi_dirty,
629 : unsigned long dirty_ratelimit,
630 : unsigned long task_ratelimit,
631 : unsigned long dirtied,
632 : unsigned long period,
633 : long pause,
634 : unsigned long start_time),
635 :
636 : TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
637 : dirty_ratelimit, task_ratelimit,
638 : dirtied, period, pause, start_time),
639 :
640 : TP_STRUCT__entry(
641 : __array( char, bdi, 32)
642 : __field(unsigned long, limit)
643 : __field(unsigned long, setpoint)
644 : __field(unsigned long, dirty)
645 : __field(unsigned long, bdi_setpoint)
646 : __field(unsigned long, bdi_dirty)
647 : __field(unsigned long, dirty_ratelimit)
648 : __field(unsigned long, task_ratelimit)
649 : __field(unsigned int, dirtied)
650 : __field(unsigned int, dirtied_pause)
651 : __field(unsigned long, paused)
652 : __field( long, pause)
653 : __field(unsigned long, period)
654 : __field( long, think)
655 : __field(ino_t, cgroup_ino)
656 : ),
657 :
658 : TP_fast_assign(
659 : unsigned long freerun = (thresh + bg_thresh) / 2;
660 : strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
661 :
662 : __entry->limit = global_wb_domain.dirty_limit;
663 : __entry->setpoint = (global_wb_domain.dirty_limit +
664 : freerun) / 2;
665 : __entry->dirty = dirty;
666 : __entry->bdi_setpoint = __entry->setpoint *
667 : bdi_thresh / (thresh + 1);
668 : __entry->bdi_dirty = bdi_dirty;
669 : __entry->dirty_ratelimit = KBps(dirty_ratelimit);
670 : __entry->task_ratelimit = KBps(task_ratelimit);
671 : __entry->dirtied = dirtied;
672 : __entry->dirtied_pause = current->nr_dirtied_pause;
673 : __entry->think = current->dirty_paused_when == 0 ? 0 :
674 : (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
675 : __entry->period = period * 1000 / HZ;
676 : __entry->pause = pause * 1000 / HZ;
677 : __entry->paused = (jiffies - start_time) * 1000 / HZ;
678 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
679 : ),
680 :
681 :
682 : TP_printk("bdi %s: "
683 : "limit=%lu setpoint=%lu dirty=%lu "
684 : "bdi_setpoint=%lu bdi_dirty=%lu "
685 : "dirty_ratelimit=%lu task_ratelimit=%lu "
686 : "dirtied=%u dirtied_pause=%u "
687 : "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",
688 : __entry->bdi,
689 : __entry->limit,
690 : __entry->setpoint,
691 : __entry->dirty,
692 : __entry->bdi_setpoint,
693 : __entry->bdi_dirty,
694 : __entry->dirty_ratelimit,
695 : __entry->task_ratelimit,
696 : __entry->dirtied,
697 : __entry->dirtied_pause,
698 : __entry->paused, /* ms */
699 : __entry->pause, /* ms */
700 : __entry->period, /* ms */
701 : __entry->think, /* ms */
702 : (unsigned long)__entry->cgroup_ino
703 : )
704 : );
705 :
706 31 : TRACE_EVENT(writeback_sb_inodes_requeue,
707 :
708 : TP_PROTO(struct inode *inode),
709 : TP_ARGS(inode),
710 :
711 : TP_STRUCT__entry(
712 : __array(char, name, 32)
713 : __field(ino_t, ino)
714 : __field(unsigned long, state)
715 : __field(unsigned long, dirtied_when)
716 : __field(ino_t, cgroup_ino)
717 : ),
718 :
719 : TP_fast_assign(
720 : strscpy_pad(__entry->name,
721 : bdi_dev_name(inode_to_bdi(inode)), 32);
722 : __entry->ino = inode->i_ino;
723 : __entry->state = inode->i_state;
724 : __entry->dirtied_when = inode->dirtied_when;
725 : __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode));
726 : ),
727 :
728 : TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",
729 : __entry->name,
730 : (unsigned long)__entry->ino,
731 : show_inode_state(__entry->state),
732 : __entry->dirtied_when,
733 : (jiffies - __entry->dirtied_when) / HZ,
734 : (unsigned long)__entry->cgroup_ino
735 : )
736 : );
737 :
738 0 : DECLARE_EVENT_CLASS(writeback_single_inode_template,
739 :
740 : TP_PROTO(struct inode *inode,
741 : struct writeback_control *wbc,
742 : unsigned long nr_to_write
743 : ),
744 :
745 : TP_ARGS(inode, wbc, nr_to_write),
746 :
747 : TP_STRUCT__entry(
748 : __array(char, name, 32)
749 : __field(ino_t, ino)
750 : __field(unsigned long, state)
751 : __field(unsigned long, dirtied_when)
752 : __field(unsigned long, writeback_index)
753 : __field(long, nr_to_write)
754 : __field(unsigned long, wrote)
755 : __field(ino_t, cgroup_ino)
756 : ),
757 :
758 : TP_fast_assign(
759 : strscpy_pad(__entry->name,
760 : bdi_dev_name(inode_to_bdi(inode)), 32);
761 : __entry->ino = inode->i_ino;
762 : __entry->state = inode->i_state;
763 : __entry->dirtied_when = inode->dirtied_when;
764 : __entry->writeback_index = inode->i_mapping->writeback_index;
765 : __entry->nr_to_write = nr_to_write;
766 : __entry->wrote = nr_to_write - wbc->nr_to_write;
767 : __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
768 : ),
769 :
770 : TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
771 : "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",
772 : __entry->name,
773 : (unsigned long)__entry->ino,
774 : show_inode_state(__entry->state),
775 : __entry->dirtied_when,
776 : (jiffies - __entry->dirtied_when) / HZ,
777 : __entry->writeback_index,
778 : __entry->nr_to_write,
779 : __entry->wrote,
780 : (unsigned long)__entry->cgroup_ino
781 : )
782 : );
783 :
784 31888934 : DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
785 : TP_PROTO(struct inode *inode,
786 : struct writeback_control *wbc,
787 : unsigned long nr_to_write),
788 : TP_ARGS(inode, wbc, nr_to_write)
789 : );
790 :
791 31889069 : DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
792 : TP_PROTO(struct inode *inode,
793 : struct writeback_control *wbc,
794 : unsigned long nr_to_write),
795 : TP_ARGS(inode, wbc, nr_to_write)
796 : );
797 :
798 0 : DECLARE_EVENT_CLASS(writeback_inode_template,
799 : TP_PROTO(struct inode *inode),
800 :
801 : TP_ARGS(inode),
802 :
803 : TP_STRUCT__entry(
804 : __field( dev_t, dev )
805 : __field( ino_t, ino )
806 : __field(unsigned long, state )
807 : __field( __u16, mode )
808 : __field(unsigned long, dirtied_when )
809 : ),
810 :
811 : TP_fast_assign(
812 : __entry->dev = inode->i_sb->s_dev;
813 : __entry->ino = inode->i_ino;
814 : __entry->state = inode->i_state;
815 : __entry->mode = inode->i_mode;
816 : __entry->dirtied_when = inode->dirtied_when;
817 : ),
818 :
819 : TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",
820 : MAJOR(__entry->dev), MINOR(__entry->dev),
821 : (unsigned long)__entry->ino, __entry->dirtied_when,
822 : show_inode_state(__entry->state), __entry->mode)
823 : );
824 :
825 69 : DEFINE_EVENT(writeback_inode_template, writeback_lazytime,
826 : TP_PROTO(struct inode *inode),
827 :
828 : TP_ARGS(inode)
829 : );
830 :
831 24 : DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput,
832 : TP_PROTO(struct inode *inode),
833 :
834 : TP_ARGS(inode)
835 : );
836 :
837 51829866 : DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue,
838 :
839 : TP_PROTO(struct inode *inode),
840 :
841 : TP_ARGS(inode)
842 : );
843 :
844 : /*
845 : * Inode writeback list tracking.
846 : */
847 :
848 46516520 : DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback,
849 : TP_PROTO(struct inode *inode),
850 : TP_ARGS(inode)
851 : );
852 :
853 46516560 : DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback,
854 : TP_PROTO(struct inode *inode),
855 : TP_ARGS(inode)
856 : );
857 :
858 : #endif /* _TRACE_WRITEBACK_H */
859 :
860 : /* This part must be outside protection */
861 : #include <trace/define_trace.h>
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