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 : EMe(WB_REASON_FORKER_THREAD, "forker_thread")
40 :
41 : WB_WORK_REASON
42 :
43 : /*
44 : * Now redefine the EM() and EMe() macros to map the enums to the strings
45 : * that will be printed in the output.
46 : */
47 : #undef EM
48 : #undef EMe
49 : #define EM(a,b) { a, b },
50 : #define EMe(a,b) { a, b }
51 :
52 : struct wb_writeback_work;
53 :
54 0 : DECLARE_EVENT_CLASS(writeback_page_template,
55 :
56 : TP_PROTO(struct page *page, struct address_space *mapping),
57 :
58 : TP_ARGS(page, mapping),
59 :
60 : TP_STRUCT__entry (
61 : __array(char, name, 32)
62 : __field(ino_t, ino)
63 : __field(pgoff_t, index)
64 : ),
65 :
66 : TP_fast_assign(
67 : strscpy_pad(__entry->name,
68 : bdi_dev_name(mapping ? inode_to_bdi(mapping->host) :
69 : NULL), 32);
70 : __entry->ino = mapping ? mapping->host->i_ino : 0;
71 : __entry->index = page->index;
72 : ),
73 :
74 : TP_printk("bdi %s: ino=%lu index=%lu",
75 : __entry->name,
76 : (unsigned long)__entry->ino,
77 : __entry->index
78 : )
79 : );
80 :
81 4986 : DEFINE_EVENT(writeback_page_template, writeback_dirty_page,
82 :
83 : TP_PROTO(struct page *page, struct address_space *mapping),
84 :
85 : TP_ARGS(page, mapping)
86 : );
87 :
88 166 : DEFINE_EVENT(writeback_page_template, wait_on_page_writeback,
89 :
90 : TP_PROTO(struct page *page, struct address_space *mapping),
91 :
92 : TP_ARGS(page, mapping)
93 : );
94 :
95 0 : DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
96 :
97 : TP_PROTO(struct inode *inode, int flags),
98 :
99 : TP_ARGS(inode, flags),
100 :
101 : TP_STRUCT__entry (
102 : __array(char, name, 32)
103 : __field(ino_t, ino)
104 : __field(unsigned long, state)
105 : __field(unsigned long, flags)
106 : ),
107 :
108 : TP_fast_assign(
109 : struct backing_dev_info *bdi = inode_to_bdi(inode);
110 :
111 : /* may be called for files on pseudo FSes w/ unregistered bdi */
112 : strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
113 : __entry->ino = inode->i_ino;
114 : __entry->state = inode->i_state;
115 : __entry->flags = flags;
116 : ),
117 :
118 : TP_printk("bdi %s: ino=%lu state=%s flags=%s",
119 : __entry->name,
120 : (unsigned long)__entry->ino,
121 : show_inode_state(__entry->state),
122 : show_inode_state(__entry->flags)
123 : )
124 : );
125 :
126 20477 : DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty,
127 :
128 : TP_PROTO(struct inode *inode, int flags),
129 :
130 : TP_ARGS(inode, flags)
131 : );
132 :
133 15082 : DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,
134 :
135 : TP_PROTO(struct inode *inode, int flags),
136 :
137 : TP_ARGS(inode, flags)
138 : );
139 :
140 15082 : DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
141 :
142 : TP_PROTO(struct inode *inode, int flags),
143 :
144 : TP_ARGS(inode, flags)
145 : );
146 :
147 : #ifdef CREATE_TRACE_POINTS
148 : #ifdef CONFIG_CGROUP_WRITEBACK
149 :
150 : static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
151 : {
152 : return cgroup_ino(wb->memcg_css->cgroup);
153 : }
154 :
155 : static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
156 : {
157 : if (wbc->wb)
158 : return __trace_wb_assign_cgroup(wbc->wb);
159 : else
160 : return 1;
161 : }
162 : #else /* CONFIG_CGROUP_WRITEBACK */
163 :
164 0 : static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
165 : {
166 0 : return 1;
167 : }
168 :
169 0 : static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
170 : {
171 0 : return 1;
172 : }
173 :
174 : #endif /* CONFIG_CGROUP_WRITEBACK */
175 : #endif /* CREATE_TRACE_POINTS */
176 :
177 : #ifdef CONFIG_CGROUP_WRITEBACK
178 : TRACE_EVENT(inode_foreign_history,
179 :
180 : TP_PROTO(struct inode *inode, struct writeback_control *wbc,
181 : unsigned int history),
182 :
183 : TP_ARGS(inode, wbc, history),
184 :
185 : TP_STRUCT__entry(
186 : __array(char, name, 32)
187 : __field(ino_t, ino)
188 : __field(ino_t, cgroup_ino)
189 : __field(unsigned int, history)
190 : ),
191 :
192 : TP_fast_assign(
193 : strscpy_pad(__entry->name, bdi_dev_name(inode_to_bdi(inode)), 32);
194 : __entry->ino = inode->i_ino;
195 : __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
196 : __entry->history = history;
197 : ),
198 :
199 : TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x",
200 : __entry->name,
201 : (unsigned long)__entry->ino,
202 : (unsigned long)__entry->cgroup_ino,
203 : __entry->history
204 : )
205 : );
206 :
207 : TRACE_EVENT(inode_switch_wbs,
208 :
209 : TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb,
210 : struct bdi_writeback *new_wb),
211 :
212 : TP_ARGS(inode, old_wb, new_wb),
213 :
214 : TP_STRUCT__entry(
215 : __array(char, name, 32)
216 : __field(ino_t, ino)
217 : __field(ino_t, old_cgroup_ino)
218 : __field(ino_t, new_cgroup_ino)
219 : ),
220 :
221 : TP_fast_assign(
222 : strscpy_pad(__entry->name, bdi_dev_name(old_wb->bdi), 32);
223 : __entry->ino = inode->i_ino;
224 : __entry->old_cgroup_ino = __trace_wb_assign_cgroup(old_wb);
225 : __entry->new_cgroup_ino = __trace_wb_assign_cgroup(new_wb);
226 : ),
227 :
228 : TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu",
229 : __entry->name,
230 : (unsigned long)__entry->ino,
231 : (unsigned long)__entry->old_cgroup_ino,
232 : (unsigned long)__entry->new_cgroup_ino
233 : )
234 : );
235 :
236 : TRACE_EVENT(track_foreign_dirty,
237 :
238 : TP_PROTO(struct page *page, struct bdi_writeback *wb),
239 :
240 : TP_ARGS(page, wb),
241 :
242 : TP_STRUCT__entry(
243 : __array(char, name, 32)
244 : __field(u64, bdi_id)
245 : __field(ino_t, ino)
246 : __field(unsigned int, memcg_id)
247 : __field(ino_t, cgroup_ino)
248 : __field(ino_t, page_cgroup_ino)
249 : ),
250 :
251 : TP_fast_assign(
252 : struct address_space *mapping = page_mapping(page);
253 : struct inode *inode = mapping ? mapping->host : NULL;
254 :
255 : strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
256 : __entry->bdi_id = wb->bdi->id;
257 : __entry->ino = inode ? inode->i_ino : 0;
258 : __entry->memcg_id = wb->memcg_css->id;
259 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
260 : __entry->page_cgroup_ino = cgroup_ino(page_memcg(page)->css.cgroup);
261 : ),
262 :
263 : TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu",
264 : __entry->name,
265 : __entry->bdi_id,
266 : (unsigned long)__entry->ino,
267 : __entry->memcg_id,
268 : (unsigned long)__entry->cgroup_ino,
269 : (unsigned long)__entry->page_cgroup_ino
270 : )
271 : );
272 :
273 : TRACE_EVENT(flush_foreign,
274 :
275 : TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id,
276 : unsigned int frn_memcg_id),
277 :
278 : TP_ARGS(wb, frn_bdi_id, frn_memcg_id),
279 :
280 : TP_STRUCT__entry(
281 : __array(char, name, 32)
282 : __field(ino_t, cgroup_ino)
283 : __field(unsigned int, frn_bdi_id)
284 : __field(unsigned int, frn_memcg_id)
285 : ),
286 :
287 : TP_fast_assign(
288 : strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
289 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
290 : __entry->frn_bdi_id = frn_bdi_id;
291 : __entry->frn_memcg_id = frn_memcg_id;
292 : ),
293 :
294 : TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u",
295 : __entry->name,
296 : (unsigned long)__entry->cgroup_ino,
297 : __entry->frn_bdi_id,
298 : __entry->frn_memcg_id
299 : )
300 : );
301 : #endif
302 :
303 0 : DECLARE_EVENT_CLASS(writeback_write_inode_template,
304 :
305 : TP_PROTO(struct inode *inode, struct writeback_control *wbc),
306 :
307 : TP_ARGS(inode, wbc),
308 :
309 : TP_STRUCT__entry (
310 : __array(char, name, 32)
311 : __field(ino_t, ino)
312 : __field(int, sync_mode)
313 : __field(ino_t, cgroup_ino)
314 : ),
315 :
316 : TP_fast_assign(
317 : strscpy_pad(__entry->name,
318 : bdi_dev_name(inode_to_bdi(inode)), 32);
319 : __entry->ino = inode->i_ino;
320 : __entry->sync_mode = wbc->sync_mode;
321 : __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
322 : ),
323 :
324 : TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu",
325 : __entry->name,
326 : (unsigned long)__entry->ino,
327 : __entry->sync_mode,
328 : (unsigned long)__entry->cgroup_ino
329 : )
330 : );
331 :
332 2746 : DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,
333 :
334 : TP_PROTO(struct inode *inode, struct writeback_control *wbc),
335 :
336 : TP_ARGS(inode, wbc)
337 : );
338 :
339 2746 : DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,
340 :
341 : TP_PROTO(struct inode *inode, struct writeback_control *wbc),
342 :
343 : TP_ARGS(inode, wbc)
344 : );
345 :
346 0 : DECLARE_EVENT_CLASS(writeback_work_class,
347 : TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
348 : TP_ARGS(wb, work),
349 : TP_STRUCT__entry(
350 : __array(char, name, 32)
351 : __field(long, nr_pages)
352 : __field(dev_t, sb_dev)
353 : __field(int, sync_mode)
354 : __field(int, for_kupdate)
355 : __field(int, range_cyclic)
356 : __field(int, for_background)
357 : __field(int, reason)
358 : __field(ino_t, cgroup_ino)
359 : ),
360 : TP_fast_assign(
361 : strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
362 : __entry->nr_pages = work->nr_pages;
363 : __entry->sb_dev = work->sb ? work->sb->s_dev : 0;
364 : __entry->sync_mode = work->sync_mode;
365 : __entry->for_kupdate = work->for_kupdate;
366 : __entry->range_cyclic = work->range_cyclic;
367 : __entry->for_background = work->for_background;
368 : __entry->reason = work->reason;
369 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
370 : ),
371 : TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
372 : "kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%lu",
373 : __entry->name,
374 : MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
375 : __entry->nr_pages,
376 : __entry->sync_mode,
377 : __entry->for_kupdate,
378 : __entry->range_cyclic,
379 : __entry->for_background,
380 : __print_symbolic(__entry->reason, WB_WORK_REASON),
381 : (unsigned long)__entry->cgroup_ino
382 : )
383 : );
384 : #define DEFINE_WRITEBACK_WORK_EVENT(name) \
385 : DEFINE_EVENT(writeback_work_class, name, \
386 : TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
387 : TP_ARGS(wb, work))
388 0 : DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
389 0 : DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
390 30 : DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
391 30 : DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
392 0 : DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
393 :
394 16 : TRACE_EVENT(writeback_pages_written,
395 : TP_PROTO(long pages_written),
396 : TP_ARGS(pages_written),
397 : TP_STRUCT__entry(
398 : __field(long, pages)
399 : ),
400 : TP_fast_assign(
401 : __entry->pages = pages_written;
402 : ),
403 : TP_printk("%ld", __entry->pages)
404 : );
405 :
406 0 : DECLARE_EVENT_CLASS(writeback_class,
407 : TP_PROTO(struct bdi_writeback *wb),
408 : TP_ARGS(wb),
409 : TP_STRUCT__entry(
410 : __array(char, name, 32)
411 : __field(ino_t, cgroup_ino)
412 : ),
413 : TP_fast_assign(
414 : strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
415 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
416 : ),
417 : TP_printk("bdi %s: cgroup_ino=%lu",
418 : __entry->name,
419 : (unsigned long)__entry->cgroup_ino
420 : )
421 : );
422 : #define DEFINE_WRITEBACK_EVENT(name) \
423 : DEFINE_EVENT(writeback_class, name, \
424 : TP_PROTO(struct bdi_writeback *wb), \
425 : TP_ARGS(wb))
426 :
427 0 : DEFINE_WRITEBACK_EVENT(writeback_wake_background);
428 :
429 18 : TRACE_EVENT(writeback_bdi_register,
430 : TP_PROTO(struct backing_dev_info *bdi),
431 : TP_ARGS(bdi),
432 : TP_STRUCT__entry(
433 : __array(char, name, 32)
434 : ),
435 : TP_fast_assign(
436 : strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
437 : ),
438 : TP_printk("bdi %s",
439 : __entry->name
440 : )
441 : );
442 :
443 0 : DECLARE_EVENT_CLASS(wbc_class,
444 : TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
445 : TP_ARGS(wbc, bdi),
446 : TP_STRUCT__entry(
447 : __array(char, name, 32)
448 : __field(long, nr_to_write)
449 : __field(long, pages_skipped)
450 : __field(int, sync_mode)
451 : __field(int, for_kupdate)
452 : __field(int, for_background)
453 : __field(int, for_reclaim)
454 : __field(int, range_cyclic)
455 : __field(long, range_start)
456 : __field(long, range_end)
457 : __field(ino_t, cgroup_ino)
458 : ),
459 :
460 : TP_fast_assign(
461 : strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
462 : __entry->nr_to_write = wbc->nr_to_write;
463 : __entry->pages_skipped = wbc->pages_skipped;
464 : __entry->sync_mode = wbc->sync_mode;
465 : __entry->for_kupdate = wbc->for_kupdate;
466 : __entry->for_background = wbc->for_background;
467 : __entry->for_reclaim = wbc->for_reclaim;
468 : __entry->range_cyclic = wbc->range_cyclic;
469 : __entry->range_start = (long)wbc->range_start;
470 : __entry->range_end = (long)wbc->range_end;
471 : __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
472 : ),
473 :
474 : TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
475 : "bgrd=%d reclm=%d cyclic=%d "
476 : "start=0x%lx end=0x%lx cgroup_ino=%lu",
477 : __entry->name,
478 : __entry->nr_to_write,
479 : __entry->pages_skipped,
480 : __entry->sync_mode,
481 : __entry->for_kupdate,
482 : __entry->for_background,
483 : __entry->for_reclaim,
484 : __entry->range_cyclic,
485 : __entry->range_start,
486 : __entry->range_end,
487 : (unsigned long)__entry->cgroup_ino
488 : )
489 : )
490 :
491 : #define DEFINE_WBC_EVENT(name) \
492 : DEFINE_EVENT(wbc_class, name, \
493 : TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
494 : TP_ARGS(wbc, bdi))
495 1748 : DEFINE_WBC_EVENT(wbc_writepage);
496 :
497 28 : TRACE_EVENT(writeback_queue_io,
498 : TP_PROTO(struct bdi_writeback *wb,
499 : struct wb_writeback_work *work,
500 : unsigned long dirtied_before,
501 : int moved),
502 : TP_ARGS(wb, work, dirtied_before, 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 : strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
513 : __entry->older = dirtied_before;
514 : __entry->age = (jiffies - dirtied_before) * 1000 / HZ;
515 : __entry->moved = moved;
516 : __entry->reason = work->reason;
517 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
518 : ),
519 : TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",
520 : __entry->name,
521 : __entry->older, /* dirtied_before in jiffies */
522 : __entry->age, /* dirtied_before in relative milliseconds */
523 : __entry->moved,
524 : __print_symbolic(__entry->reason, WB_WORK_REASON),
525 : (unsigned long)__entry->cgroup_ino
526 : )
527 : );
528 :
529 72 : TRACE_EVENT(global_dirty_state,
530 :
531 : TP_PROTO(unsigned long background_thresh,
532 : unsigned long dirty_thresh
533 : ),
534 :
535 : TP_ARGS(background_thresh,
536 : dirty_thresh
537 : ),
538 :
539 : TP_STRUCT__entry(
540 : __field(unsigned long, nr_dirty)
541 : __field(unsigned long, nr_writeback)
542 : __field(unsigned long, background_thresh)
543 : __field(unsigned long, dirty_thresh)
544 : __field(unsigned long, dirty_limit)
545 : __field(unsigned long, nr_dirtied)
546 : __field(unsigned long, nr_written)
547 : ),
548 :
549 : TP_fast_assign(
550 : __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY);
551 : __entry->nr_writeback = global_node_page_state(NR_WRITEBACK);
552 : __entry->nr_dirtied = global_node_page_state(NR_DIRTIED);
553 : __entry->nr_written = global_node_page_state(NR_WRITTEN);
554 : __entry->background_thresh = background_thresh;
555 : __entry->dirty_thresh = dirty_thresh;
556 : __entry->dirty_limit = global_wb_domain.dirty_limit;
557 : ),
558 :
559 : TP_printk("dirty=%lu writeback=%lu "
560 : "bg_thresh=%lu thresh=%lu limit=%lu "
561 : "dirtied=%lu written=%lu",
562 : __entry->nr_dirty,
563 : __entry->nr_writeback,
564 : __entry->background_thresh,
565 : __entry->dirty_thresh,
566 : __entry->dirty_limit,
567 : __entry->nr_dirtied,
568 : __entry->nr_written
569 : )
570 : );
571 :
572 : #define KBps(x) ((x) << (PAGE_SHIFT - 10))
573 :
574 0 : TRACE_EVENT(bdi_dirty_ratelimit,
575 :
576 : TP_PROTO(struct bdi_writeback *wb,
577 : unsigned long dirty_rate,
578 : unsigned long task_ratelimit),
579 :
580 : TP_ARGS(wb, dirty_rate, task_ratelimit),
581 :
582 : TP_STRUCT__entry(
583 : __array(char, bdi, 32)
584 : __field(unsigned long, write_bw)
585 : __field(unsigned long, avg_write_bw)
586 : __field(unsigned long, dirty_rate)
587 : __field(unsigned long, dirty_ratelimit)
588 : __field(unsigned long, task_ratelimit)
589 : __field(unsigned long, balanced_dirty_ratelimit)
590 : __field(ino_t, cgroup_ino)
591 : ),
592 :
593 : TP_fast_assign(
594 : strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
595 : __entry->write_bw = KBps(wb->write_bandwidth);
596 : __entry->avg_write_bw = KBps(wb->avg_write_bandwidth);
597 : __entry->dirty_rate = KBps(dirty_rate);
598 : __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit);
599 : __entry->task_ratelimit = KBps(task_ratelimit);
600 : __entry->balanced_dirty_ratelimit =
601 : KBps(wb->balanced_dirty_ratelimit);
602 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
603 : ),
604 :
605 : TP_printk("bdi %s: "
606 : "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
607 : "dirty_ratelimit=%lu task_ratelimit=%lu "
608 : "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",
609 : __entry->bdi,
610 : __entry->write_bw, /* write bandwidth */
611 : __entry->avg_write_bw, /* avg write bandwidth */
612 : __entry->dirty_rate, /* bdi dirty rate */
613 : __entry->dirty_ratelimit, /* base ratelimit */
614 : __entry->task_ratelimit, /* ratelimit with position control */
615 : __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */
616 : (unsigned long)__entry->cgroup_ino
617 : )
618 : );
619 :
620 0 : TRACE_EVENT(balance_dirty_pages,
621 :
622 : TP_PROTO(struct bdi_writeback *wb,
623 : unsigned long thresh,
624 : unsigned long bg_thresh,
625 : unsigned long dirty,
626 : unsigned long bdi_thresh,
627 : unsigned long bdi_dirty,
628 : unsigned long dirty_ratelimit,
629 : unsigned long task_ratelimit,
630 : unsigned long dirtied,
631 : unsigned long period,
632 : long pause,
633 : unsigned long start_time),
634 :
635 : TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
636 : dirty_ratelimit, task_ratelimit,
637 : dirtied, period, pause, start_time),
638 :
639 : TP_STRUCT__entry(
640 : __array( char, bdi, 32)
641 : __field(unsigned long, limit)
642 : __field(unsigned long, setpoint)
643 : __field(unsigned long, dirty)
644 : __field(unsigned long, bdi_setpoint)
645 : __field(unsigned long, bdi_dirty)
646 : __field(unsigned long, dirty_ratelimit)
647 : __field(unsigned long, task_ratelimit)
648 : __field(unsigned int, dirtied)
649 : __field(unsigned int, dirtied_pause)
650 : __field(unsigned long, paused)
651 : __field( long, pause)
652 : __field(unsigned long, period)
653 : __field( long, think)
654 : __field(ino_t, cgroup_ino)
655 : ),
656 :
657 : TP_fast_assign(
658 : unsigned long freerun = (thresh + bg_thresh) / 2;
659 : strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
660 :
661 : __entry->limit = global_wb_domain.dirty_limit;
662 : __entry->setpoint = (global_wb_domain.dirty_limit +
663 : freerun) / 2;
664 : __entry->dirty = dirty;
665 : __entry->bdi_setpoint = __entry->setpoint *
666 : bdi_thresh / (thresh + 1);
667 : __entry->bdi_dirty = bdi_dirty;
668 : __entry->dirty_ratelimit = KBps(dirty_ratelimit);
669 : __entry->task_ratelimit = KBps(task_ratelimit);
670 : __entry->dirtied = dirtied;
671 : __entry->dirtied_pause = current->nr_dirtied_pause;
672 : __entry->think = current->dirty_paused_when == 0 ? 0 :
673 : (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
674 : __entry->period = period * 1000 / HZ;
675 : __entry->pause = pause * 1000 / HZ;
676 : __entry->paused = (jiffies - start_time) * 1000 / HZ;
677 : __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
678 : ),
679 :
680 :
681 : TP_printk("bdi %s: "
682 : "limit=%lu setpoint=%lu dirty=%lu "
683 : "bdi_setpoint=%lu bdi_dirty=%lu "
684 : "dirty_ratelimit=%lu task_ratelimit=%lu "
685 : "dirtied=%u dirtied_pause=%u "
686 : "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",
687 : __entry->bdi,
688 : __entry->limit,
689 : __entry->setpoint,
690 : __entry->dirty,
691 : __entry->bdi_setpoint,
692 : __entry->bdi_dirty,
693 : __entry->dirty_ratelimit,
694 : __entry->task_ratelimit,
695 : __entry->dirtied,
696 : __entry->dirtied_pause,
697 : __entry->paused, /* ms */
698 : __entry->pause, /* ms */
699 : __entry->period, /* ms */
700 : __entry->think, /* ms */
701 : (unsigned long)__entry->cgroup_ino
702 : )
703 : );
704 :
705 0 : TRACE_EVENT(writeback_sb_inodes_requeue,
706 :
707 : TP_PROTO(struct inode *inode),
708 : TP_ARGS(inode),
709 :
710 : TP_STRUCT__entry(
711 : __array(char, name, 32)
712 : __field(ino_t, ino)
713 : __field(unsigned long, state)
714 : __field(unsigned long, dirtied_when)
715 : __field(ino_t, cgroup_ino)
716 : ),
717 :
718 : TP_fast_assign(
719 : strscpy_pad(__entry->name,
720 : bdi_dev_name(inode_to_bdi(inode)), 32);
721 : __entry->ino = inode->i_ino;
722 : __entry->state = inode->i_state;
723 : __entry->dirtied_when = inode->dirtied_when;
724 : __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode));
725 : ),
726 :
727 : TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",
728 : __entry->name,
729 : (unsigned long)__entry->ino,
730 : show_inode_state(__entry->state),
731 : __entry->dirtied_when,
732 : (jiffies - __entry->dirtied_when) / HZ,
733 : (unsigned long)__entry->cgroup_ino
734 : )
735 : );
736 :
737 0 : DECLARE_EVENT_CLASS(writeback_congest_waited_template,
738 :
739 : TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
740 :
741 : TP_ARGS(usec_timeout, usec_delayed),
742 :
743 : TP_STRUCT__entry(
744 : __field( unsigned int, usec_timeout )
745 : __field( unsigned int, usec_delayed )
746 : ),
747 :
748 : TP_fast_assign(
749 : __entry->usec_timeout = usec_timeout;
750 : __entry->usec_delayed = usec_delayed;
751 : ),
752 :
753 : TP_printk("usec_timeout=%u usec_delayed=%u",
754 : __entry->usec_timeout,
755 : __entry->usec_delayed)
756 : );
757 :
758 0 : DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
759 :
760 : TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
761 :
762 : TP_ARGS(usec_timeout, usec_delayed)
763 : );
764 :
765 0 : DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
766 :
767 : TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
768 :
769 : TP_ARGS(usec_timeout, usec_delayed)
770 : );
771 :
772 0 : DECLARE_EVENT_CLASS(writeback_single_inode_template,
773 :
774 : TP_PROTO(struct inode *inode,
775 : struct writeback_control *wbc,
776 : unsigned long nr_to_write
777 : ),
778 :
779 : TP_ARGS(inode, wbc, nr_to_write),
780 :
781 : TP_STRUCT__entry(
782 : __array(char, name, 32)
783 : __field(ino_t, ino)
784 : __field(unsigned long, state)
785 : __field(unsigned long, dirtied_when)
786 : __field(unsigned long, writeback_index)
787 : __field(long, nr_to_write)
788 : __field(unsigned long, wrote)
789 : __field(ino_t, cgroup_ino)
790 : ),
791 :
792 : TP_fast_assign(
793 : strscpy_pad(__entry->name,
794 : bdi_dev_name(inode_to_bdi(inode)), 32);
795 : __entry->ino = inode->i_ino;
796 : __entry->state = inode->i_state;
797 : __entry->dirtied_when = inode->dirtied_when;
798 : __entry->writeback_index = inode->i_mapping->writeback_index;
799 : __entry->nr_to_write = nr_to_write;
800 : __entry->wrote = nr_to_write - wbc->nr_to_write;
801 : __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
802 : ),
803 :
804 : TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
805 : "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",
806 : __entry->name,
807 : (unsigned long)__entry->ino,
808 : show_inode_state(__entry->state),
809 : __entry->dirtied_when,
810 : (jiffies - __entry->dirtied_when) / HZ,
811 : __entry->writeback_index,
812 : __entry->nr_to_write,
813 : __entry->wrote,
814 : (unsigned long)__entry->cgroup_ino
815 : )
816 : );
817 :
818 2748 : DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
819 : TP_PROTO(struct inode *inode,
820 : struct writeback_control *wbc,
821 : unsigned long nr_to_write),
822 : TP_ARGS(inode, wbc, nr_to_write)
823 : );
824 :
825 2748 : DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
826 : TP_PROTO(struct inode *inode,
827 : struct writeback_control *wbc,
828 : unsigned long nr_to_write),
829 : TP_ARGS(inode, wbc, nr_to_write)
830 : );
831 :
832 0 : DECLARE_EVENT_CLASS(writeback_inode_template,
833 : TP_PROTO(struct inode *inode),
834 :
835 : TP_ARGS(inode),
836 :
837 : TP_STRUCT__entry(
838 : __field( dev_t, dev )
839 : __field( ino_t, ino )
840 : __field(unsigned long, state )
841 : __field( __u16, mode )
842 : __field(unsigned long, dirtied_when )
843 : ),
844 :
845 : TP_fast_assign(
846 : __entry->dev = inode->i_sb->s_dev;
847 : __entry->ino = inode->i_ino;
848 : __entry->state = inode->i_state;
849 : __entry->mode = inode->i_mode;
850 : __entry->dirtied_when = inode->dirtied_when;
851 : ),
852 :
853 : TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",
854 : MAJOR(__entry->dev), MINOR(__entry->dev),
855 : (unsigned long)__entry->ino, __entry->dirtied_when,
856 : show_inode_state(__entry->state), __entry->mode)
857 : );
858 :
859 0 : DEFINE_EVENT(writeback_inode_template, writeback_lazytime,
860 : TP_PROTO(struct inode *inode),
861 :
862 : TP_ARGS(inode)
863 : );
864 :
865 0 : DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput,
866 : TP_PROTO(struct inode *inode),
867 :
868 : TP_ARGS(inode)
869 : );
870 :
871 4314 : DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue,
872 :
873 : TP_PROTO(struct inode *inode),
874 :
875 : TP_ARGS(inode)
876 : );
877 :
878 : /*
879 : * Inode writeback list tracking.
880 : */
881 :
882 168 : DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback,
883 : TP_PROTO(struct inode *inode),
884 : TP_ARGS(inode)
885 : );
886 :
887 168 : DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback,
888 : TP_PROTO(struct inode *inode),
889 : TP_ARGS(inode)
890 : );
891 :
892 : #endif /* _TRACE_WRITEBACK_H */
893 :
894 : /* This part must be outside protection */
895 : #include <trace/define_trace.h>
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