1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define TRACE_SYSTEM writeback
5 #if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define _TRACE_WRITEBACK_H
8 #include <linux/tracepoint.h>
9 #include <linux/backing-dev.h>
10 #include <linux/writeback.h>
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"}, \
18 {I_WILL_FREE, "I_WILL_FREE"}, \
19 {I_FREEING, "I_FREEING"}, \
20 {I_CLEAR, "I_CLEAR"}, \
22 {I_DIRTY_TIME, "I_DIRTY_TIME"}, \
23 {I_DIRTY_TIME_EXPIRED, "I_DIRTY_TIME_EXPIRED"}, \
24 {I_REFERENCED, "I_REFERENCED"} \
27 /* enums need to be exported to user space */
30 #define EM(a,b) TRACE_DEFINE_ENUM(a);
31 #define EMe(a,b) TRACE_DEFINE_ENUM(a);
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")
45 * Now redefine the EM() and EMe() macros to map the enums to the strings
46 * that will be printed in the output.
50 #define EM(a,b) { a, b },
51 #define EMe(a,b) { a, b }
53 struct wb_writeback_work;
55 DECLARE_EVENT_CLASS(writeback_page_template,
57 TP_PROTO(struct page *page, struct address_space *mapping),
59 TP_ARGS(page, mapping),
62 __array(char, name, 32)
64 __field(pgoff_t, index)
68 strscpy_pad(__entry->name,
69 bdi_dev_name(mapping ? inode_to_bdi(mapping->host) :
71 __entry->ino = mapping ? mapping->host->i_ino : 0;
72 __entry->index = page->index;
75 TP_printk("bdi %s: ino=%lu index=%lu",
77 (unsigned long)__entry->ino,
82 DEFINE_EVENT(writeback_page_template, writeback_dirty_page,
84 TP_PROTO(struct page *page, struct address_space *mapping),
86 TP_ARGS(page, mapping)
89 DEFINE_EVENT(writeback_page_template, wait_on_page_writeback,
91 TP_PROTO(struct page *page, struct address_space *mapping),
93 TP_ARGS(page, mapping)
96 DECLARE_EVENT_CLASS(writeback_dirty_inode_template,
98 TP_PROTO(struct inode *inode, int flags),
100 TP_ARGS(inode, flags),
103 __array(char, name, 32)
105 __field(unsigned long, state)
106 __field(unsigned long, flags)
110 struct backing_dev_info *bdi = inode_to_bdi(inode);
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;
119 TP_printk("bdi %s: ino=%lu state=%s flags=%s",
121 (unsigned long)__entry->ino,
122 show_inode_state(__entry->state),
123 show_inode_state(__entry->flags)
127 DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty,
129 TP_PROTO(struct inode *inode, int flags),
131 TP_ARGS(inode, flags)
134 DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start,
136 TP_PROTO(struct inode *inode, int flags),
138 TP_ARGS(inode, flags)
141 DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode,
143 TP_PROTO(struct inode *inode, int flags),
145 TP_ARGS(inode, flags)
148 #ifdef CREATE_TRACE_POINTS
149 #ifdef CONFIG_CGROUP_WRITEBACK
151 static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
153 return cgroup_ino(wb->memcg_css->cgroup);
156 static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
159 return __trace_wb_assign_cgroup(wbc->wb);
163 #else /* CONFIG_CGROUP_WRITEBACK */
165 static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb)
170 static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc)
175 #endif /* CONFIG_CGROUP_WRITEBACK */
176 #endif /* CREATE_TRACE_POINTS */
178 #ifdef CONFIG_CGROUP_WRITEBACK
179 TRACE_EVENT(inode_foreign_history,
181 TP_PROTO(struct inode *inode, struct writeback_control *wbc,
182 unsigned int history),
184 TP_ARGS(inode, wbc, history),
187 __array(char, name, 32)
189 __field(ino_t, cgroup_ino)
190 __field(unsigned int, history)
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;
200 TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x",
202 (unsigned long)__entry->ino,
203 (unsigned long)__entry->cgroup_ino,
208 TRACE_EVENT(inode_switch_wbs,
210 TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb,
211 struct bdi_writeback *new_wb),
213 TP_ARGS(inode, old_wb, new_wb),
216 __array(char, name, 32)
218 __field(ino_t, old_cgroup_ino)
219 __field(ino_t, new_cgroup_ino)
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);
229 TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu",
231 (unsigned long)__entry->ino,
232 (unsigned long)__entry->old_cgroup_ino,
233 (unsigned long)__entry->new_cgroup_ino
237 TRACE_EVENT(track_foreign_dirty,
239 TP_PROTO(struct page *page, struct bdi_writeback *wb),
244 __array(char, name, 32)
247 __field(unsigned int, memcg_id)
248 __field(ino_t, cgroup_ino)
249 __field(ino_t, page_cgroup_ino)
253 struct address_space *mapping = page_mapping(page);
254 struct inode *inode = mapping ? mapping->host : NULL;
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);
264 TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu",
267 (unsigned long)__entry->ino,
269 (unsigned long)__entry->cgroup_ino,
270 (unsigned long)__entry->page_cgroup_ino
274 TRACE_EVENT(flush_foreign,
276 TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id,
277 unsigned int frn_memcg_id),
279 TP_ARGS(wb, frn_bdi_id, frn_memcg_id),
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)
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;
295 TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u",
297 (unsigned long)__entry->cgroup_ino,
299 __entry->frn_memcg_id
304 DECLARE_EVENT_CLASS(writeback_write_inode_template,
306 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
311 __array(char, name, 32)
313 __field(int, sync_mode)
314 __field(ino_t, cgroup_ino)
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);
325 TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu",
327 (unsigned long)__entry->ino,
329 (unsigned long)__entry->cgroup_ino
333 DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start,
335 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
340 DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode,
342 TP_PROTO(struct inode *inode, struct writeback_control *wbc),
347 DECLARE_EVENT_CLASS(writeback_work_class,
348 TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
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)
359 __field(ino_t, cgroup_ino)
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);
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",
375 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
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
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), \
389 DEFINE_WRITEBACK_WORK_EVENT(writeback_queue);
390 DEFINE_WRITEBACK_WORK_EVENT(writeback_exec);
391 DEFINE_WRITEBACK_WORK_EVENT(writeback_start);
392 DEFINE_WRITEBACK_WORK_EVENT(writeback_written);
393 DEFINE_WRITEBACK_WORK_EVENT(writeback_wait);
395 TRACE_EVENT(writeback_pages_written,
396 TP_PROTO(long pages_written),
397 TP_ARGS(pages_written),
402 __entry->pages = pages_written;
404 TP_printk("%ld", __entry->pages)
407 DECLARE_EVENT_CLASS(writeback_class,
408 TP_PROTO(struct bdi_writeback *wb),
411 __array(char, name, 32)
412 __field(ino_t, cgroup_ino)
415 strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32);
416 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
418 TP_printk("bdi %s: cgroup_ino=%lu",
420 (unsigned long)__entry->cgroup_ino
423 #define DEFINE_WRITEBACK_EVENT(name) \
424 DEFINE_EVENT(writeback_class, name, \
425 TP_PROTO(struct bdi_writeback *wb), \
428 DEFINE_WRITEBACK_EVENT(writeback_wake_background);
430 TRACE_EVENT(writeback_bdi_register,
431 TP_PROTO(struct backing_dev_info *bdi),
434 __array(char, name, 32)
437 strscpy_pad(__entry->name, bdi_dev_name(bdi), 32);
444 DECLARE_EVENT_CLASS(wbc_class,
445 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
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)
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);
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",
479 __entry->nr_to_write,
480 __entry->pages_skipped,
482 __entry->for_kupdate,
483 __entry->for_background,
484 __entry->for_reclaim,
485 __entry->range_cyclic,
486 __entry->range_start,
488 (unsigned long)__entry->cgroup_ino
492 #define DEFINE_WBC_EVENT(name) \
493 DEFINE_EVENT(wbc_class, name, \
494 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
496 DEFINE_WBC_EVENT(wbc_writepage);
498 TRACE_EVENT(writeback_queue_io,
499 TP_PROTO(struct bdi_writeback *wb,
500 struct wb_writeback_work *work,
502 TP_ARGS(wb, work, moved),
504 __array(char, name, 32)
505 __field(unsigned long, older)
509 __field(ino_t, cgroup_ino)
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);
521 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu",
523 __entry->older, /* older_than_this in jiffies */
524 __entry->age, /* older_than_this in relative milliseconds */
526 __print_symbolic(__entry->reason, WB_WORK_REASON),
527 (unsigned long)__entry->cgroup_ino
531 TRACE_EVENT(global_dirty_state,
533 TP_PROTO(unsigned long background_thresh,
534 unsigned long dirty_thresh
537 TP_ARGS(background_thresh,
542 __field(unsigned long, nr_dirty)
543 __field(unsigned long, nr_writeback)
544 __field(unsigned long, background_thresh)
545 __field(unsigned long, dirty_thresh)
546 __field(unsigned long, dirty_limit)
547 __field(unsigned long, nr_dirtied)
548 __field(unsigned long, nr_written)
552 __entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY);
553 __entry->nr_writeback = global_node_page_state(NR_WRITEBACK);
554 __entry->nr_dirtied = global_node_page_state(NR_DIRTIED);
555 __entry->nr_written = global_node_page_state(NR_WRITTEN);
556 __entry->background_thresh = background_thresh;
557 __entry->dirty_thresh = dirty_thresh;
558 __entry->dirty_limit = global_wb_domain.dirty_limit;
561 TP_printk("dirty=%lu writeback=%lu "
562 "bg_thresh=%lu thresh=%lu limit=%lu "
563 "dirtied=%lu written=%lu",
565 __entry->nr_writeback,
566 __entry->background_thresh,
567 __entry->dirty_thresh,
568 __entry->dirty_limit,
574 #define KBps(x) ((x) << (PAGE_SHIFT - 10))
576 TRACE_EVENT(bdi_dirty_ratelimit,
578 TP_PROTO(struct bdi_writeback *wb,
579 unsigned long dirty_rate,
580 unsigned long task_ratelimit),
582 TP_ARGS(wb, dirty_rate, task_ratelimit),
585 __array(char, bdi, 32)
586 __field(unsigned long, write_bw)
587 __field(unsigned long, avg_write_bw)
588 __field(unsigned long, dirty_rate)
589 __field(unsigned long, dirty_ratelimit)
590 __field(unsigned long, task_ratelimit)
591 __field(unsigned long, balanced_dirty_ratelimit)
592 __field(ino_t, cgroup_ino)
596 strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
597 __entry->write_bw = KBps(wb->write_bandwidth);
598 __entry->avg_write_bw = KBps(wb->avg_write_bandwidth);
599 __entry->dirty_rate = KBps(dirty_rate);
600 __entry->dirty_ratelimit = KBps(wb->dirty_ratelimit);
601 __entry->task_ratelimit = KBps(task_ratelimit);
602 __entry->balanced_dirty_ratelimit =
603 KBps(wb->balanced_dirty_ratelimit);
604 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
608 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
609 "dirty_ratelimit=%lu task_ratelimit=%lu "
610 "balanced_dirty_ratelimit=%lu cgroup_ino=%lu",
612 __entry->write_bw, /* write bandwidth */
613 __entry->avg_write_bw, /* avg write bandwidth */
614 __entry->dirty_rate, /* bdi dirty rate */
615 __entry->dirty_ratelimit, /* base ratelimit */
616 __entry->task_ratelimit, /* ratelimit with position control */
617 __entry->balanced_dirty_ratelimit, /* the balanced ratelimit */
618 (unsigned long)__entry->cgroup_ino
622 TRACE_EVENT(balance_dirty_pages,
624 TP_PROTO(struct bdi_writeback *wb,
625 unsigned long thresh,
626 unsigned long bg_thresh,
628 unsigned long bdi_thresh,
629 unsigned long bdi_dirty,
630 unsigned long dirty_ratelimit,
631 unsigned long task_ratelimit,
632 unsigned long dirtied,
633 unsigned long period,
635 unsigned long start_time),
637 TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
638 dirty_ratelimit, task_ratelimit,
639 dirtied, period, pause, start_time),
642 __array( char, bdi, 32)
643 __field(unsigned long, limit)
644 __field(unsigned long, setpoint)
645 __field(unsigned long, dirty)
646 __field(unsigned long, bdi_setpoint)
647 __field(unsigned long, bdi_dirty)
648 __field(unsigned long, dirty_ratelimit)
649 __field(unsigned long, task_ratelimit)
650 __field(unsigned int, dirtied)
651 __field(unsigned int, dirtied_pause)
652 __field(unsigned long, paused)
653 __field( long, pause)
654 __field(unsigned long, period)
655 __field( long, think)
656 __field(ino_t, cgroup_ino)
660 unsigned long freerun = (thresh + bg_thresh) / 2;
661 strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32);
663 __entry->limit = global_wb_domain.dirty_limit;
664 __entry->setpoint = (global_wb_domain.dirty_limit +
666 __entry->dirty = dirty;
667 __entry->bdi_setpoint = __entry->setpoint *
668 bdi_thresh / (thresh + 1);
669 __entry->bdi_dirty = bdi_dirty;
670 __entry->dirty_ratelimit = KBps(dirty_ratelimit);
671 __entry->task_ratelimit = KBps(task_ratelimit);
672 __entry->dirtied = dirtied;
673 __entry->dirtied_pause = current->nr_dirtied_pause;
674 __entry->think = current->dirty_paused_when == 0 ? 0 :
675 (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
676 __entry->period = period * 1000 / HZ;
677 __entry->pause = pause * 1000 / HZ;
678 __entry->paused = (jiffies - start_time) * 1000 / HZ;
679 __entry->cgroup_ino = __trace_wb_assign_cgroup(wb);
684 "limit=%lu setpoint=%lu dirty=%lu "
685 "bdi_setpoint=%lu bdi_dirty=%lu "
686 "dirty_ratelimit=%lu task_ratelimit=%lu "
687 "dirtied=%u dirtied_pause=%u "
688 "paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu",
693 __entry->bdi_setpoint,
695 __entry->dirty_ratelimit,
696 __entry->task_ratelimit,
698 __entry->dirtied_pause,
699 __entry->paused, /* ms */
700 __entry->pause, /* ms */
701 __entry->period, /* ms */
702 __entry->think, /* ms */
703 (unsigned long)__entry->cgroup_ino
707 TRACE_EVENT(writeback_sb_inodes_requeue,
709 TP_PROTO(struct inode *inode),
713 __array(char, name, 32)
715 __field(unsigned long, state)
716 __field(unsigned long, dirtied_when)
717 __field(ino_t, cgroup_ino)
721 strscpy_pad(__entry->name,
722 bdi_dev_name(inode_to_bdi(inode)), 32);
723 __entry->ino = inode->i_ino;
724 __entry->state = inode->i_state;
725 __entry->dirtied_when = inode->dirtied_when;
726 __entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode));
729 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu",
731 (unsigned long)__entry->ino,
732 show_inode_state(__entry->state),
733 __entry->dirtied_when,
734 (jiffies - __entry->dirtied_when) / HZ,
735 (unsigned long)__entry->cgroup_ino
739 DECLARE_EVENT_CLASS(writeback_congest_waited_template,
741 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
743 TP_ARGS(usec_timeout, usec_delayed),
746 __field( unsigned int, usec_timeout )
747 __field( unsigned int, usec_delayed )
751 __entry->usec_timeout = usec_timeout;
752 __entry->usec_delayed = usec_delayed;
755 TP_printk("usec_timeout=%u usec_delayed=%u",
756 __entry->usec_timeout,
757 __entry->usec_delayed)
760 DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
762 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
764 TP_ARGS(usec_timeout, usec_delayed)
767 DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
769 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
771 TP_ARGS(usec_timeout, usec_delayed)
774 DECLARE_EVENT_CLASS(writeback_single_inode_template,
776 TP_PROTO(struct inode *inode,
777 struct writeback_control *wbc,
778 unsigned long nr_to_write
781 TP_ARGS(inode, wbc, nr_to_write),
784 __array(char, name, 32)
786 __field(unsigned long, state)
787 __field(unsigned long, dirtied_when)
788 __field(unsigned long, writeback_index)
789 __field(long, nr_to_write)
790 __field(unsigned long, wrote)
791 __field(ino_t, cgroup_ino)
795 strscpy_pad(__entry->name,
796 bdi_dev_name(inode_to_bdi(inode)), 32);
797 __entry->ino = inode->i_ino;
798 __entry->state = inode->i_state;
799 __entry->dirtied_when = inode->dirtied_when;
800 __entry->writeback_index = inode->i_mapping->writeback_index;
801 __entry->nr_to_write = nr_to_write;
802 __entry->wrote = nr_to_write - wbc->nr_to_write;
803 __entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc);
806 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
807 "index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu",
809 (unsigned long)__entry->ino,
810 show_inode_state(__entry->state),
811 __entry->dirtied_when,
812 (jiffies - __entry->dirtied_when) / HZ,
813 __entry->writeback_index,
814 __entry->nr_to_write,
816 (unsigned long)__entry->cgroup_ino
820 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start,
821 TP_PROTO(struct inode *inode,
822 struct writeback_control *wbc,
823 unsigned long nr_to_write),
824 TP_ARGS(inode, wbc, nr_to_write)
827 DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
828 TP_PROTO(struct inode *inode,
829 struct writeback_control *wbc,
830 unsigned long nr_to_write),
831 TP_ARGS(inode, wbc, nr_to_write)
834 DECLARE_EVENT_CLASS(writeback_inode_template,
835 TP_PROTO(struct inode *inode),
840 __field( dev_t, dev )
841 __field( ino_t, ino )
842 __field(unsigned long, state )
843 __field( __u16, mode )
844 __field(unsigned long, dirtied_when )
848 __entry->dev = inode->i_sb->s_dev;
849 __entry->ino = inode->i_ino;
850 __entry->state = inode->i_state;
851 __entry->mode = inode->i_mode;
852 __entry->dirtied_when = inode->dirtied_when;
855 TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o",
856 MAJOR(__entry->dev), MINOR(__entry->dev),
857 (unsigned long)__entry->ino, __entry->dirtied_when,
858 show_inode_state(__entry->state), __entry->mode)
861 DEFINE_EVENT(writeback_inode_template, writeback_lazytime,
862 TP_PROTO(struct inode *inode),
867 DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput,
868 TP_PROTO(struct inode *inode),
873 DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue,
875 TP_PROTO(struct inode *inode),
881 * Inode writeback list tracking.
884 DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback,
885 TP_PROTO(struct inode *inode),
889 DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback,
890 TP_PROTO(struct inode *inode),
894 #endif /* _TRACE_WRITEBACK_H */
896 /* This part must be outside protection */
897 #include <trace/define_trace.h>