1
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM block
4
5#if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_BLOCK_H
7
8#include <linux/blktrace_api.h>
9#include <linux/blkdev.h>
10#include <linux/buffer_head.h>
11#include <linux/tracepoint.h>
12
13#define RWBS_LEN 8
14
15DECLARE_EVENT_CLASS(block_buffer,
16
17 TP_PROTO(struct buffer_head *bh),
18
19 TP_ARGS(bh),
20
21 TP_STRUCT__entry (
22 __field( dev_t, dev )
23 __field( sector_t, sector )
24 __field( size_t, size )
25 ),
26
27 TP_fast_assign(
28 __entry->dev = bh->b_bdev->bd_dev;
29 __entry->sector = bh->b_blocknr;
30 __entry->size = bh->b_size;
31 ),
32
33 TP_printk("%d,%d sector=%llu size=%zu",
34 MAJOR(__entry->dev), MINOR(__entry->dev),
35 (unsigned long long)__entry->sector, __entry->size
36 )
37);
38
39
40
41
42
43
44
45DEFINE_EVENT(block_buffer, block_touch_buffer,
46
47 TP_PROTO(struct buffer_head *bh),
48
49 TP_ARGS(bh)
50);
51
52
53
54
55
56
57
58DEFINE_EVENT(block_buffer, block_dirty_buffer,
59
60 TP_PROTO(struct buffer_head *bh),
61
62 TP_ARGS(bh)
63);
64
65
66
67
68
69
70
71
72
73
74TRACE_EVENT(block_rq_requeue,
75
76 TP_PROTO(struct request_queue *q, struct request *rq),
77
78 TP_ARGS(q, rq),
79
80 TP_STRUCT__entry(
81 __field( dev_t, dev )
82 __field( sector_t, sector )
83 __field( unsigned int, nr_sector )
84 __array( char, rwbs, RWBS_LEN )
85 __dynamic_array( char, cmd, 1 )
86 ),
87
88 TP_fast_assign(
89 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
90 __entry->sector = blk_rq_trace_sector(rq);
91 __entry->nr_sector = blk_rq_trace_nr_sectors(rq);
92
93 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
94 __get_str(cmd)[0] = '\0';
95 ),
96
97 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
98 MAJOR(__entry->dev), MINOR(__entry->dev),
99 __entry->rwbs, __get_str(cmd),
100 (unsigned long long)__entry->sector,
101 __entry->nr_sector, 0)
102);
103
104
105
106
107
108
109
110
111
112
113
114
115
116TRACE_EVENT(block_rq_complete,
117
118 TP_PROTO(struct request *rq, int error, unsigned int nr_bytes),
119
120 TP_ARGS(rq, error, nr_bytes),
121
122 TP_STRUCT__entry(
123 __field( dev_t, dev )
124 __field( sector_t, sector )
125 __field( unsigned int, nr_sector )
126 __field( int, error )
127 __array( char, rwbs, RWBS_LEN )
128 __dynamic_array( char, cmd, 1 )
129 ),
130
131 TP_fast_assign(
132 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
133 __entry->sector = blk_rq_pos(rq);
134 __entry->nr_sector = nr_bytes >> 9;
135 __entry->error = error;
136
137 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes);
138 __get_str(cmd)[0] = '\0';
139 ),
140
141 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
142 MAJOR(__entry->dev), MINOR(__entry->dev),
143 __entry->rwbs, __get_str(cmd),
144 (unsigned long long)__entry->sector,
145 __entry->nr_sector, __entry->error)
146);
147
148DECLARE_EVENT_CLASS(block_rq,
149
150 TP_PROTO(struct request_queue *q, struct request *rq),
151
152 TP_ARGS(q, rq),
153
154 TP_STRUCT__entry(
155 __field( dev_t, dev )
156 __field( sector_t, sector )
157 __field( unsigned int, nr_sector )
158 __field( unsigned int, bytes )
159 __array( char, rwbs, RWBS_LEN )
160 __array( char, comm, TASK_COMM_LEN )
161 __dynamic_array( char, cmd, 1 )
162 ),
163
164 TP_fast_assign(
165 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
166 __entry->sector = blk_rq_trace_sector(rq);
167 __entry->nr_sector = blk_rq_trace_nr_sectors(rq);
168 __entry->bytes = blk_rq_bytes(rq);
169
170 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
171 __get_str(cmd)[0] = '\0';
172 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
173 ),
174
175 TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
176 MAJOR(__entry->dev), MINOR(__entry->dev),
177 __entry->rwbs, __entry->bytes, __get_str(cmd),
178 (unsigned long long)__entry->sector,
179 __entry->nr_sector, __entry->comm)
180);
181
182
183
184
185
186
187
188
189
190
191
192DEFINE_EVENT(block_rq, block_rq_insert,
193
194 TP_PROTO(struct request_queue *q, struct request *rq),
195
196 TP_ARGS(q, rq)
197);
198
199
200
201
202
203
204
205
206
207DEFINE_EVENT(block_rq, block_rq_issue,
208
209 TP_PROTO(struct request_queue *q, struct request *rq),
210
211 TP_ARGS(q, rq)
212);
213
214
215
216
217
218
219
220
221
222
223
224
225TRACE_EVENT(block_bio_bounce,
226
227 TP_PROTO(struct request_queue *q, struct bio *bio),
228
229 TP_ARGS(q, bio),
230
231 TP_STRUCT__entry(
232 __field( dev_t, dev )
233 __field( sector_t, sector )
234 __field( unsigned int, nr_sector )
235 __array( char, rwbs, RWBS_LEN )
236 __array( char, comm, TASK_COMM_LEN )
237 ),
238
239 TP_fast_assign(
240 __entry->dev = bio_dev(bio);
241 __entry->sector = bio->bi_iter.bi_sector;
242 __entry->nr_sector = bio_sectors(bio);
243 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
244 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
245 ),
246
247 TP_printk("%d,%d %s %llu + %u [%s]",
248 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
249 (unsigned long long)__entry->sector,
250 __entry->nr_sector, __entry->comm)
251);
252
253
254
255
256
257
258
259
260
261TRACE_EVENT(block_bio_complete,
262
263 TP_PROTO(struct request_queue *q, struct bio *bio),
264
265 TP_ARGS(q, bio),
266
267 TP_STRUCT__entry(
268 __field( dev_t, dev )
269 __field( sector_t, sector )
270 __field( unsigned, nr_sector )
271 __field( int, error )
272 __array( char, rwbs, RWBS_LEN)
273 ),
274
275 TP_fast_assign(
276 __entry->dev = bio_dev(bio);
277 __entry->sector = bio->bi_iter.bi_sector;
278 __entry->nr_sector = bio_sectors(bio);
279 __entry->error = blk_status_to_errno(bio->bi_status);
280 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
281 ),
282
283 TP_printk("%d,%d %s %llu + %u [%d]",
284 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
285 (unsigned long long)__entry->sector,
286 __entry->nr_sector, __entry->error)
287);
288
289DECLARE_EVENT_CLASS(block_bio_merge,
290
291 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
292
293 TP_ARGS(q, rq, bio),
294
295 TP_STRUCT__entry(
296 __field( dev_t, dev )
297 __field( sector_t, sector )
298 __field( unsigned int, nr_sector )
299 __array( char, rwbs, RWBS_LEN )
300 __array( char, comm, TASK_COMM_LEN )
301 ),
302
303 TP_fast_assign(
304 __entry->dev = bio_dev(bio);
305 __entry->sector = bio->bi_iter.bi_sector;
306 __entry->nr_sector = bio_sectors(bio);
307 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
308 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
309 ),
310
311 TP_printk("%d,%d %s %llu + %u [%s]",
312 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
313 (unsigned long long)__entry->sector,
314 __entry->nr_sector, __entry->comm)
315);
316
317
318
319
320
321
322
323
324
325
326DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
327
328 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
329
330 TP_ARGS(q, rq, bio)
331);
332
333
334
335
336
337
338
339
340
341
342DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
343
344 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
345
346 TP_ARGS(q, rq, bio)
347);
348
349
350
351
352
353
354
355
356TRACE_EVENT(block_bio_queue,
357
358 TP_PROTO(struct request_queue *q, struct bio *bio),
359
360 TP_ARGS(q, bio),
361
362 TP_STRUCT__entry(
363 __field( dev_t, dev )
364 __field( sector_t, sector )
365 __field( unsigned int, nr_sector )
366 __array( char, rwbs, RWBS_LEN )
367 __array( char, comm, TASK_COMM_LEN )
368 ),
369
370 TP_fast_assign(
371 __entry->dev = bio_dev(bio);
372 __entry->sector = bio->bi_iter.bi_sector;
373 __entry->nr_sector = bio_sectors(bio);
374 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
375 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
376 ),
377
378 TP_printk("%d,%d %s %llu + %u [%s]",
379 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
380 (unsigned long long)__entry->sector,
381 __entry->nr_sector, __entry->comm)
382);
383
384DECLARE_EVENT_CLASS(block_get_rq,
385
386 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
387
388 TP_ARGS(q, bio, rw),
389
390 TP_STRUCT__entry(
391 __field( dev_t, dev )
392 __field( sector_t, sector )
393 __field( unsigned int, nr_sector )
394 __array( char, rwbs, RWBS_LEN )
395 __array( char, comm, TASK_COMM_LEN )
396 ),
397
398 TP_fast_assign(
399 __entry->dev = bio ? bio_dev(bio) : 0;
400 __entry->sector = bio ? bio->bi_iter.bi_sector : 0;
401 __entry->nr_sector = bio ? bio_sectors(bio) : 0;
402 blk_fill_rwbs(__entry->rwbs,
403 bio ? bio->bi_opf : 0, __entry->nr_sector);
404 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
405 ),
406
407 TP_printk("%d,%d %s %llu + %u [%s]",
408 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
409 (unsigned long long)__entry->sector,
410 __entry->nr_sector, __entry->comm)
411);
412
413
414
415
416
417
418
419
420
421
422DEFINE_EVENT(block_get_rq, block_getrq,
423
424 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
425
426 TP_ARGS(q, bio, rw)
427);
428
429
430
431
432
433
434
435
436
437
438
439
440DEFINE_EVENT(block_get_rq, block_sleeprq,
441
442 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
443
444 TP_ARGS(q, bio, rw)
445);
446
447
448
449
450
451
452
453
454
455TRACE_EVENT(block_plug,
456
457 TP_PROTO(struct request_queue *q),
458
459 TP_ARGS(q),
460
461 TP_STRUCT__entry(
462 __array( char, comm, TASK_COMM_LEN )
463 ),
464
465 TP_fast_assign(
466 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
467 ),
468
469 TP_printk("[%s]", __entry->comm)
470);
471
472DECLARE_EVENT_CLASS(block_unplug,
473
474 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
475
476 TP_ARGS(q, depth, explicit),
477
478 TP_STRUCT__entry(
479 __field( int, nr_rq )
480 __array( char, comm, TASK_COMM_LEN )
481 ),
482
483 TP_fast_assign(
484 __entry->nr_rq = depth;
485 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
486 ),
487
488 TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
489);
490
491
492
493
494
495
496
497
498
499
500DEFINE_EVENT(block_unplug, block_unplug,
501
502 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
503
504 TP_ARGS(q, depth, explicit)
505);
506
507
508
509
510
511
512
513
514
515
516
517
518TRACE_EVENT(block_split,
519
520 TP_PROTO(struct request_queue *q, struct bio *bio,
521 unsigned int new_sector),
522
523 TP_ARGS(q, bio, new_sector),
524
525 TP_STRUCT__entry(
526 __field( dev_t, dev )
527 __field( sector_t, sector )
528 __field( sector_t, new_sector )
529 __array( char, rwbs, RWBS_LEN )
530 __array( char, comm, TASK_COMM_LEN )
531 ),
532
533 TP_fast_assign(
534 __entry->dev = bio_dev(bio);
535 __entry->sector = bio->bi_iter.bi_sector;
536 __entry->new_sector = new_sector;
537 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
538 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
539 ),
540
541 TP_printk("%d,%d %s %llu / %llu [%s]",
542 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
543 (unsigned long long)__entry->sector,
544 (unsigned long long)__entry->new_sector,
545 __entry->comm)
546);
547
548
549
550
551
552
553
554
555
556
557
558TRACE_EVENT(block_bio_remap,
559
560 TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
561 sector_t from),
562
563 TP_ARGS(q, bio, dev, from),
564
565 TP_STRUCT__entry(
566 __field( dev_t, dev )
567 __field( sector_t, sector )
568 __field( unsigned int, nr_sector )
569 __field( dev_t, old_dev )
570 __field( sector_t, old_sector )
571 __array( char, rwbs, RWBS_LEN)
572 ),
573
574 TP_fast_assign(
575 __entry->dev = bio_dev(bio);
576 __entry->sector = bio->bi_iter.bi_sector;
577 __entry->nr_sector = bio_sectors(bio);
578 __entry->old_dev = dev;
579 __entry->old_sector = from;
580 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
581 ),
582
583 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
584 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
585 (unsigned long long)__entry->sector,
586 __entry->nr_sector,
587 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
588 (unsigned long long)__entry->old_sector)
589);
590
591
592
593
594
595
596
597
598
599
600
601
602TRACE_EVENT(block_rq_remap,
603
604 TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
605 sector_t from),
606
607 TP_ARGS(q, rq, dev, from),
608
609 TP_STRUCT__entry(
610 __field( dev_t, dev )
611 __field( sector_t, sector )
612 __field( unsigned int, nr_sector )
613 __field( dev_t, old_dev )
614 __field( sector_t, old_sector )
615 __field( unsigned int, nr_bios )
616 __array( char, rwbs, RWBS_LEN)
617 ),
618
619 TP_fast_assign(
620 __entry->dev = disk_devt(rq->rq_disk);
621 __entry->sector = blk_rq_pos(rq);
622 __entry->nr_sector = blk_rq_sectors(rq);
623 __entry->old_dev = dev;
624 __entry->old_sector = from;
625 __entry->nr_bios = blk_rq_count_bios(rq);
626 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
627 ),
628
629 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u",
630 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
631 (unsigned long long)__entry->sector,
632 __entry->nr_sector,
633 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
634 (unsigned long long)__entry->old_sector, __entry->nr_bios)
635);
636
637#endif
638
639
640#include <trace/define_trace.h>
641
642