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Rename odd event names
[lttng-modules.git] / instrumentation / events / lttng-module / writeback.h
CommitLineData
b87700e3
AG		 1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM writeback
3
4#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_WRITEBACK_H
6
7#include <linux/backing-dev.h>
8#include <linux/writeback.h>
9#include <linux/version.h>
10
11#ifndef _TRACE_WRITEBACK_DEF_
12#define _TRACE_WRITEBACK_DEF_
13/* Have to duplicate it here from fs/fs-writeback.c */
14struct wb_writeback_work {
15 long nr_pages;
16 struct super_block *sb;
17#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
18 unsigned long *older_than_this;
19#endif
20 enum writeback_sync_modes sync_mode;
21#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
22 unsigned int tagged_writepages:1;
23#endif
24 unsigned int for_kupdate:1;
25 unsigned int range_cyclic:1;
26 unsigned int for_background:1;
27#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
28 enum wb_reason reason; /* why was writeback initiated? */
29#endif
30
31 struct list_head list; /* pending work list */
32 struct completion *done; /* set if the caller waits */
33};
34static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
35{
36 struct super_block *sb = inode->i_sb;
37
38 if (strcmp(sb->s_type->name, "bdev") == 0)
39 return inode->i_mapping->backing_dev_info;
40
41 return sb->s_bdi;
42}
43#endif
44
45#define show_inode_state(state) \
46 __print_flags(state, "|", \
47 {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \
48 {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \
49 {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \
50 {I_NEW, "I_NEW"}, \
51 {I_WILL_FREE, "I_WILL_FREE"}, \
52 {I_FREEING, "I_FREEING"}, \
53 {I_CLEAR, "I_CLEAR"}, \
54 {I_SYNC, "I_SYNC"}, \
55 {I_REFERENCED, "I_REFERENCED"} \
56 )
57
58#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
59#define WB_WORK_REASON \
60 {WB_REASON_BACKGROUND, "background"}, \
61 {WB_REASON_TRY_TO_FREE_PAGES, "try_to_free_pages"}, \
62 {WB_REASON_SYNC, "sync"}, \
63 {WB_REASON_PERIODIC, "periodic"}, \
64 {WB_REASON_LAPTOP_TIMER, "laptop_timer"}, \
65 {WB_REASON_FREE_MORE_MEM, "free_more_memory"}, \
66 {WB_REASON_FS_FREE_SPACE, "fs_free_space"}, \
67 {WB_REASON_FORKER_THREAD, "forker_thread"}
68#endif
69
70DECLARE_EVENT_CLASS(writeback_work_class,
71 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
72 TP_ARGS(bdi, work),
73 TP_STRUCT__entry(
74 __array(char, name, 32)
75 __field(long, nr_pages)
76 __field(dev_t, sb_dev)
77 __field(int, sync_mode)
78 __field(int, for_kupdate)
79 __field(int, range_cyclic)
80 __field(int, for_background)
81#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
82 __field(int, reason)
83#endif
84 ),
85 TP_fast_assign(
86 tp_memcpy(name, dev_name(bdi->dev ? bdi->dev :
87 default_backing_dev_info.dev), 32)
88 tp_assign(nr_pages, work->nr_pages)
89 tp_assign(sb_dev, work->sb ? work->sb->s_dev : 0)
90 tp_assign(sync_mode, work->sync_mode)
91 tp_assign(for_kupdate, work->for_kupdate)
92 tp_assign(range_cyclic, work->range_cyclic)
93 tp_assign(for_background, work->for_background)
94#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
95 tp_assign(reason, work->reason)
96#endif
97 ),
98#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
99 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
100 "kupdate=%d range_cyclic=%d background=%d reason=%s",
101 __entry->name,
102 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
103 __entry->nr_pages,
104 __entry->sync_mode,
105 __entry->for_kupdate,
106 __entry->range_cyclic,
107 __entry->for_background,
108 __print_symbolic(__entry->reason, WB_WORK_REASON)
109 )
110#else
111 TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d "
112 "kupdate=%d range_cyclic=%d background=%d",
113 __entry->name,
114 MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev),
115 __entry->nr_pages,
116 __entry->sync_mode,
117 __entry->for_kupdate,
118 __entry->range_cyclic,
119 __entry->for_background
120 )
121#endif
122)
123#define DEFINE_WRITEBACK_WORK_EVENT(name) \
124DEFINE_EVENT(writeback_work_class, name, \
125 TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
126 TP_ARGS(bdi, work))
127DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread)
128DEFINE_WRITEBACK_WORK_EVENT(writeback_queue)
129DEFINE_WRITEBACK_WORK_EVENT(writeback_exec)
130#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
131DEFINE_WRITEBACK_WORK_EVENT(writeback_start)
132DEFINE_WRITEBACK_WORK_EVENT(writeback_written)
133DEFINE_WRITEBACK_WORK_EVENT(writeback_wait)
134#endif
135
136TRACE_EVENT(writeback_pages_written,
137 TP_PROTO(long pages_written),
138 TP_ARGS(pages_written),
139 TP_STRUCT__entry(
140 __field(long, pages)
141 ),
142 TP_fast_assign(
143 tp_assign(pages, pages_written)
144 ),
145 TP_printk("%ld", __entry->pages)
146)
147
148DECLARE_EVENT_CLASS(writeback_class,
149 TP_PROTO(struct backing_dev_info *bdi),
150 TP_ARGS(bdi),
151 TP_STRUCT__entry(
152 __array(char, name, 32)
153 ),
154 TP_fast_assign(
155 tp_memcpy(name, dev_name(bdi->dev), 32)
156 ),
157 TP_printk("bdi %s",
158 __entry->name
159 )
160)
161#define DEFINE_WRITEBACK_EVENT(name) \
162DEFINE_EVENT(writeback_class, name, \
163 TP_PROTO(struct backing_dev_info *bdi), \
164 TP_ARGS(bdi))
165
9cf29d3e
MD		 166#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
167DEFINE_EVENT_MAP(writeback_class, name, map, \
168 TP_PROTO(struct backing_dev_info *bdi), \
169 TP_ARGS(bdi))
170
b87700e3
AG		 171DEFINE_WRITEBACK_EVENT(writeback_nowork)
172#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
173DEFINE_WRITEBACK_EVENT(writeback_wake_background)
174#endif
175DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
176DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
177DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
178DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
179DEFINE_WRITEBACK_EVENT(writeback_thread_start)
180DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
181#if (LTTNG_KERNEL_RANGE(3,1,0, 3,2,0))
9cf29d3e
MD		 182DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_start, writeback_balance_dirty_start)
183DEFINE_WRITEBACK_EVENT_MAP(balance_dirty_wait, writeback_balance_dirty_wait)
184
185TRACE_EVENT_MAP(balance_dirty_written,
b87700e3 186
9cf29d3e 187 writeback_balance_dirty_written,
b87700e3
AG		 188
189 TP_PROTO(struct backing_dev_info *bdi, int written),
190
191 TP_ARGS(bdi, written),
192
193 TP_STRUCT__entry(
194 __array(char, name, 32)
195 __field(int, written)
196 ),
197
198 TP_fast_assign(
199 tp_memcpy(name, dev_name(bdi->dev), 32)
200 tp_assign(written, written)
201 ),
202
203 TP_printk("bdi %s written %d",
204 __entry->name,
205 __entry->written
206 )
207)
208#endif
209
9cf29d3e 210DECLARE_EVENT_CLASS(writeback_wbc_class,
b87700e3
AG		 211 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi),
212 TP_ARGS(wbc, bdi),
213 TP_STRUCT__entry(
214 __array(char, name, 32)
215 __field(long, nr_to_write)
216 __field(long, pages_skipped)
217 __field(int, sync_mode)
218 __field(int, for_kupdate)
219 __field(int, for_background)
220 __field(int, for_reclaim)
221 __field(int, range_cyclic)
222#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
223 __field(int, more_io)
224 __field(unsigned long, older_than_this)
225#endif
226 __field(long, range_start)
227 __field(long, range_end)
228 ),
229
230 TP_fast_assign(
231 tp_memcpy(name, dev_name(bdi->dev), 32)
232 tp_assign(nr_to_write, wbc->nr_to_write)
233 tp_assign(pages_skipped, wbc->pages_skipped)
234 tp_assign(sync_mode, wbc->sync_mode)
235 tp_assign(for_kupdate, wbc->for_kupdate)
236 tp_assign(for_background, wbc->for_background)
237 tp_assign(for_reclaim, wbc->for_reclaim)
238 tp_assign(range_cyclic, wbc->range_cyclic)
239#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
240 tp_assign(more_io, wbc->more_io)
241 tp_assign(older_than_this, wbc->older_than_this ?
242 *wbc->older_than_this : 0)
243#endif
244 tp_assign(range_start, (long)wbc->range_start)
245 tp_assign(range_end, (long)wbc->range_end)
246 ),
247
248 TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d "
249#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
250 "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx "
251#else
252 "bgrd=%d reclm=%d cyclic=%d "
253#endif
254 "start=0x%lx end=0x%lx",
255 __entry->name,
256 __entry->nr_to_write,
257 __entry->pages_skipped,
258 __entry->sync_mode,
259 __entry->for_kupdate,
260 __entry->for_background,
261 __entry->for_reclaim,
262 __entry->range_cyclic,
263#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
264 __entry->more_io,
265 __entry->older_than_this,
266#endif
267 __entry->range_start,
268 __entry->range_end)
269)
270
9cf29d3e
MD		 271#undef DEFINE_WBC_EVENT
272#define DEFINE_WBC_EVENT(name, map) \
273DEFINE_EVENT_MAP(writeback_wbc_class, name, map, \
b87700e3
AG		 274 TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \
275 TP_ARGS(wbc, bdi))
276#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0))
9cf29d3e
MD		 277DEFINE_WBC_EVENT(wbc_writeback_start, writeback_wbc_writeback_start)
278DEFINE_WBC_EVENT(wbc_writeback_written, writeback_wbc_writeback_written)
279DEFINE_WBC_EVENT(wbc_writeback_wait, writeback_wbc_writeback_wait)
280DEFINE_WBC_EVENT(wbc_balance_dirty_start, writeback_wbc_balance_dirty_start)
281DEFINE_WBC_EVENT(wbc_balance_dirty_written, writeback_wbc_balance_dirty_written)
282DEFINE_WBC_EVENT(wbc_balance_dirty_wait, writeback_wbc_balance_dirty_wait)
b87700e3 283#endif
9cf29d3e 284DEFINE_WBC_EVENT(wbc_writepage, writeback_wbc_writepage)
b87700e3
AG		 285
286#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
287TRACE_EVENT(writeback_queue_io,
288 TP_PROTO(struct bdi_writeback *wb,
289#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
290 struct wb_writeback_work *work,
291#else
292 unsigned long *older_than_this,
293#endif
294 int moved),
295#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
296 TP_ARGS(wb, work, moved),
297#else
298 TP_ARGS(wb, older_than_this, moved),
299#endif
300 TP_STRUCT__entry(
301 __array(char, name, 32)
302 __field(unsigned long, older)
303 __field(long, age)
304 __field(int, moved)
305#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
306 __field(int, reason)
307#endif
308 ),
309 TP_fast_assign(
310 tp_memcpy(name, dev_name(wb->bdi->dev), 32)
311#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
312 tp_assign(older,
313 work->older_than_this ? *(work->older_than_this) : 0)
314 tp_assign(age, work->older_than_this ?
315 (jiffies - *(work->older_than_this)) * 1000 / HZ : -1)
316#else
317 tp_assign(older, older_than_this ? *older_than_this : 0)
318 tp_assign(age, older_than_this ?
319 (jiffies - *older_than_this) * 1000 / HZ : -1)
320#endif
321 tp_assign(moved, moved)
322#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
323 tp_assign(reason, work->reason)
324#endif
325 ),
326#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
327 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s",
328 __entry->name,
329 __entry->older, /* older_than_this in jiffies */
330 __entry->age, /* older_than_this in relative milliseconds */
331 __entry->moved,
332 __print_symbolic(__entry->reason, WB_WORK_REASON)
333 )
334#else
335 TP_printk("bdi %s: older=%lu age=%ld enqueue=%d",
336 __entry->name,
337 __entry->older, /* older_than_this in jiffies */
338 __entry->age, /* older_than_this in relative milliseconds */
339 __entry->moved
340 )
341#endif
342)
343
9cf29d3e
MD		 344TRACE_EVENT_MAP(global_dirty_state,
345
346 writeback_global_dirty_state,
b87700e3
AG		 347
348 TP_PROTO(unsigned long background_thresh,
349 unsigned long dirty_thresh
350 ),
351
352 TP_ARGS(background_thresh,
353 dirty_thresh
354 ),
355
356 TP_STRUCT__entry(
357 __field(unsigned long, nr_dirty)
358 __field(unsigned long, nr_writeback)
359 __field(unsigned long, nr_unstable)
360 __field(unsigned long, background_thresh)
361 __field(unsigned long, dirty_thresh)
362 __field(unsigned long, dirty_limit)
363 __field(unsigned long, nr_dirtied)
364 __field(unsigned long, nr_written)
365 ),
366
367 TP_fast_assign(
368 tp_assign(nr_dirty, global_page_state(NR_FILE_DIRTY))
369 tp_assign(nr_writeback, global_page_state(NR_WRITEBACK))
370 tp_assign(nr_unstable, global_page_state(NR_UNSTABLE_NFS))
371 tp_assign(nr_dirtied, global_page_state(NR_DIRTIED))
372 tp_assign(nr_written, global_page_state(NR_WRITTEN))
373 tp_assign(background_thresh, background_thresh)
374 tp_assign(dirty_thresh, dirty_thresh)
375 tp_assign(dirty_limit, global_dirty_limit)
376 ),
377
378 TP_printk("dirty=%lu writeback=%lu unstable=%lu "
379 "bg_thresh=%lu thresh=%lu limit=%lu "
380 "dirtied=%lu written=%lu",
381 __entry->nr_dirty,
382 __entry->nr_writeback,
383 __entry->nr_unstable,
384 __entry->background_thresh,
385 __entry->dirty_thresh,
386 __entry->dirty_limit,
387 __entry->nr_dirtied,
388 __entry->nr_written
389 )
390)
391#endif
392
393#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
394
395#define KBps(x) ((x) << (PAGE_SHIFT - 10))
396
9cf29d3e
MD		 397TRACE_EVENT_MAP(bdi_dirty_ratelimit,
398
399 writeback_bdi_dirty_ratelimit,
b87700e3
AG		 400
401 TP_PROTO(struct backing_dev_info *bdi,
402 unsigned long dirty_rate,
403 unsigned long task_ratelimit),
404
405 TP_ARGS(bdi, dirty_rate, task_ratelimit),
406
407 TP_STRUCT__entry(
408 __array(char, bdi, 32)
409 __field(unsigned long, write_bw)
410 __field(unsigned long, avg_write_bw)
411 __field(unsigned long, dirty_rate)
412 __field(unsigned long, dirty_ratelimit)
413 __field(unsigned long, task_ratelimit)
414 __field(unsigned long, balanced_dirty_ratelimit)
415 ),
416
417 TP_fast_assign(
418 tp_memcpy(bdi, dev_name(bdi->dev), 32)
419 tp_assign(write_bw, KBps(bdi->write_bandwidth))
420 tp_assign(avg_write_bw, KBps(bdi->avg_write_bandwidth))
421 tp_assign(dirty_rate, KBps(dirty_rate))
422 tp_assign(dirty_ratelimit, KBps(bdi->dirty_ratelimit))
423 tp_assign(task_ratelimit, KBps(task_ratelimit))
424 tp_assign(balanced_dirty_ratelimit,
425 KBps(bdi->balanced_dirty_ratelimit))
426 ),
427
428 TP_printk("bdi %s: "
429 "write_bw=%lu awrite_bw=%lu dirty_rate=%lu "
430 "dirty_ratelimit=%lu task_ratelimit=%lu "
431 "balanced_dirty_ratelimit=%lu",
432 __entry->bdi,
433 __entry->write_bw, /* write bandwidth */
434 __entry->avg_write_bw, /* avg write bandwidth */
435 __entry->dirty_rate, /* bdi dirty rate */
436 __entry->dirty_ratelimit, /* base ratelimit */
437 __entry->task_ratelimit, /* ratelimit with position control */
438 __entry->balanced_dirty_ratelimit /* the balanced ratelimit */
439 )
440)
441
9cf29d3e
MD		 442TRACE_EVENT_MAP(balance_dirty_pages,
443
444 writeback_balance_dirty_pages,
b87700e3
AG		 445
446 TP_PROTO(struct backing_dev_info *bdi,
447 unsigned long thresh,
448 unsigned long bg_thresh,
449 unsigned long dirty,
450 unsigned long bdi_thresh,
451 unsigned long bdi_dirty,
452 unsigned long dirty_ratelimit,
453 unsigned long task_ratelimit,
454 unsigned long dirtied,
455#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
456 unsigned long period,
457#endif
458 long pause,
459 unsigned long start_time),
460
461 TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
462 dirty_ratelimit, task_ratelimit,
463#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
464 dirtied, period, pause, start_time),
465#else
466 dirtied, pause, start_time),
467#endif
468 TP_STRUCT__entry(
469 __array( char, bdi, 32)
470 __field(unsigned long, limit)
471 __field(unsigned long, setpoint)
472 __field(unsigned long, dirty)
473 __field(unsigned long, bdi_setpoint)
474 __field(unsigned long, bdi_dirty)
475 __field(unsigned long, dirty_ratelimit)
476 __field(unsigned long, task_ratelimit)
477 __field(unsigned int, dirtied)
478 __field(unsigned int, dirtied_pause)
479 __field(unsigned long, paused)
480 __field( long, pause)
481#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
482 __field(unsigned long, period)
483 __field( long, think)
484#endif
485 ),
486
487 TP_fast_assign(
488 tp_memcpy(bdi, dev_name(bdi->dev), 32)
489 tp_assign(limit, global_dirty_limit)
490 tp_assign(setpoint,
491 (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
492 tp_assign(dirty, dirty)
493 tp_assign(bdi_setpoint,
494 ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
495 bdi_thresh / (thresh + 1))
496 tp_assign(bdi_dirty, bdi_dirty)
497 tp_assign(dirty_ratelimit, KBps(dirty_ratelimit))
498 tp_assign(task_ratelimit, KBps(task_ratelimit))
499 tp_assign(dirtied, dirtied)
500 tp_assign(dirtied_pause, current->nr_dirtied_pause)
501#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
502 tp_assign(think, current->dirty_paused_when == 0 ? 0 :
503 (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
504 tp_assign(period, period * 1000 / HZ)
505#endif
506 tp_assign(pause, pause * 1000 / HZ)
507 tp_assign(paused, (jiffies - start_time) * 1000 / HZ)
508 ),
509
510
511#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
512 TP_printk("bdi %s: "
513 "limit=%lu setpoint=%lu dirty=%lu "
514 "bdi_setpoint=%lu bdi_dirty=%lu "
515 "dirty_ratelimit=%lu task_ratelimit=%lu "
516 "dirtied=%u dirtied_pause=%u "
517 "paused=%lu pause=%ld period=%lu think=%ld",
518 __entry->bdi,
519 __entry->limit,
520 __entry->setpoint,
521 __entry->dirty,
522 __entry->bdi_setpoint,
523 __entry->bdi_dirty,
524 __entry->dirty_ratelimit,
525 __entry->task_ratelimit,
526 __entry->dirtied,
527 __entry->dirtied_pause,
528 __entry->paused, /* ms */
529 __entry->pause, /* ms */
530 __entry->period, /* ms */
531 __entry->think /* ms */
532 )
533#else
534 TP_printk("bdi %s: "
535 "limit=%lu setpoint=%lu dirty=%lu "
536 "bdi_setpoint=%lu bdi_dirty=%lu "
537 "dirty_ratelimit=%lu task_ratelimit=%lu "
538 "dirtied=%u dirtied_pause=%u "
539 "paused=%lu pause=%ld",
540 __entry->bdi,
541 __entry->limit,
542 __entry->setpoint,
543 __entry->dirty,
544 __entry->bdi_setpoint,
545 __entry->bdi_dirty,
546 __entry->dirty_ratelimit,
547 __entry->task_ratelimit,
548 __entry->dirtied,
549 __entry->dirtied_pause,
550 __entry->paused, /* ms */
551 __entry->pause /* ms */
552 )
553#endif
554)
555#endif
556
557#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
558TRACE_EVENT(writeback_sb_inodes_requeue,
559
560 TP_PROTO(struct inode *inode),
561 TP_ARGS(inode),
562
563 TP_STRUCT__entry(
564 __array(char, name, 32)
565 __field(unsigned long, ino)
566 __field(unsigned long, state)
567 __field(unsigned long, dirtied_when)
568 ),
569
570 TP_fast_assign(
571 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
572 tp_assign(ino, inode->i_ino)
573 tp_assign(state, inode->i_state)
574 tp_assign(dirtied_when, inode->dirtied_when)
575 ),
576
577 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu",
578 __entry->name,
579 __entry->ino,
580 show_inode_state(__entry->state),
581 __entry->dirtied_when,
582 (jiffies - __entry->dirtied_when) / HZ
583 )
584)
585#endif
586
587#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
588DECLARE_EVENT_CLASS(writeback_congest_waited_template,
589
590 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
591
592 TP_ARGS(usec_timeout, usec_delayed),
593
594 TP_STRUCT__entry(
595 __field( unsigned int, usec_timeout )
596 __field( unsigned int, usec_delayed )
597 ),
598
599 TP_fast_assign(
600 tp_assign(usec_timeout, usec_timeout)
601 tp_assign(usec_delayed, usec_delayed)
602 ),
603
604 TP_printk("usec_timeout=%u usec_delayed=%u",
605 __entry->usec_timeout,
606 __entry->usec_delayed)
607)
608
609DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait,
610
611 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
612
613 TP_ARGS(usec_timeout, usec_delayed)
614)
615
616DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested,
617
618 TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed),
619
620 TP_ARGS(usec_timeout, usec_delayed)
621)
622#endif
623
624#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
625DECLARE_EVENT_CLASS(writeback_single_inode_template,
626
627 TP_PROTO(struct inode *inode,
628 struct writeback_control *wbc,
629 unsigned long nr_to_write
630 ),
631
632 TP_ARGS(inode, wbc, nr_to_write),
633
634 TP_STRUCT__entry(
635 __array(char, name, 32)
636 __field(unsigned long, ino)
637 __field(unsigned long, state)
638 __field(unsigned long, dirtied_when)
639 __field(unsigned long, writeback_index)
640 __field(long, nr_to_write)
641 __field(unsigned long, wrote)
642 ),
643
644 TP_fast_assign(
645 tp_memcpy(name, dev_name(inode_to_bdi(inode)->dev), 32)
646 tp_assign(ino, inode->i_ino)
647 tp_assign(state, inode->i_state)
648 tp_assign(dirtied_when, inode->dirtied_when)
649 tp_assign(writeback_index, inode->i_mapping->writeback_index)
650 tp_assign(nr_to_write, nr_to_write)
651 tp_assign(wrote, nr_to_write - wbc->nr_to_write)
652 ),
653
654 TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu "
655 "index=%lu to_write=%ld wrote=%lu",
656 __entry->name,
657 __entry->ino,
658 show_inode_state(__entry->state),
659 __entry->dirtied_when,
660 (jiffies - __entry->dirtied_when) / HZ,
661 __entry->writeback_index,
662 __entry->nr_to_write,
663 __entry->wrote
664 )
665)
666
667#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0))
668DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue,
669 TP_PROTO(struct inode *inode,
670 struct writeback_control *wbc,
671 unsigned long nr_to_write),
672 TP_ARGS(inode, wbc, nr_to_write)
673)
674#endif
675
676DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode,
677 TP_PROTO(struct inode *inode,
678 struct writeback_control *wbc,
679 unsigned long nr_to_write),
680 TP_ARGS(inode, wbc, nr_to_write)
681)
682#endif
683
684#endif /* _TRACE_WRITEBACK_H */
685
686/* This part must be outside protection */
687#include "../../../probes/define_trace.h"
LTTng 2.0/0.x modules
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