1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM block
3
4#if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_BLOCK_H
6
7#include <linux/blktrace_api.h>
8#include <linux/blkdev.h>
9#include <linux/buffer_head.h>
10#include <linux/tracepoint.h>
11
12#define RWBS_LEN 8
13
14DECLARE_EVENT_CLASS(block_buffer,
15
16 TP_PROTO(struct buffer_head *bh),
17
18 TP_ARGS(bh),
19
20 TP_STRUCT__entry (
21 __field( dev_t, dev )
22 __field( sector_t, sector )
23 __field( size_t, size )
24 ),
25
26 TP_fast_assign(
27 __entry->dev = bh->b_bdev->bd_dev;
28 __entry->sector = bh->b_blocknr;
29 __entry->size = bh->b_size;
30 ),
31
32 TP_printk("%d,%d sector=%llu size=%zu",
33 MAJOR(__entry->dev), MINOR(__entry->dev),
34 (unsigned long long)__entry->sector, __entry->size
35 )
36);
37
38
39
40
41
42
43
44DEFINE_EVENT(block_buffer, block_touch_buffer,
45
46 TP_PROTO(struct buffer_head *bh),
47
48 TP_ARGS(bh)
49);
50
51
52
53
54
55
56
57DEFINE_EVENT(block_buffer, block_dirty_buffer,
58
59 TP_PROTO(struct buffer_head *bh),
60
61 TP_ARGS(bh)
62);
63
64DECLARE_EVENT_CLASS(block_rq_with_error,
65
66 TP_PROTO(struct request_queue *q, struct request *rq),
67
68 TP_ARGS(q, rq),
69
70 TP_STRUCT__entry(
71 __field( dev_t, dev )
72 __field( sector_t, sector )
73 __field( unsigned int, nr_sector )
74 __field( int, errors )
75 __array( char, rwbs, RWBS_LEN )
76 __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
77 ),
78
79 TP_fast_assign(
80 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
81 __entry->sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
82 0 : blk_rq_pos(rq);
83 __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
84 0 : blk_rq_sectors(rq);
85 __entry->errors = rq->errors;
86
87 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
88 blk_dump_cmd(__get_str(cmd), rq);
89 ),
90
91 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
92 MAJOR(__entry->dev), MINOR(__entry->dev),
93 __entry->rwbs, __get_str(cmd),
94 (unsigned long long)__entry->sector,
95 __entry->nr_sector, __entry->errors)
96);
97
98
99
100
101
102
103
104
105
106
107
108DEFINE_EVENT(block_rq_with_error, block_rq_abort,
109
110 TP_PROTO(struct request_queue *q, struct request *rq),
111
112 TP_ARGS(q, rq)
113);
114
115
116
117
118
119
120
121
122
123
124DEFINE_EVENT(block_rq_with_error, block_rq_requeue,
125
126 TP_PROTO(struct request_queue *q, struct request *rq),
127
128 TP_ARGS(q, rq)
129);
130
131
132
133
134
135
136
137
138
139
140
141
142
143TRACE_EVENT(block_rq_complete,
144
145 TP_PROTO(struct request_queue *q, struct request *rq,
146 unsigned int nr_bytes),
147
148 TP_ARGS(q, rq, nr_bytes),
149
150 TP_STRUCT__entry(
151 __field( dev_t, dev )
152 __field( sector_t, sector )
153 __field( unsigned int, nr_sector )
154 __field( int, errors )
155 __array( char, rwbs, RWBS_LEN )
156 __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
157 ),
158
159 TP_fast_assign(
160 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
161 __entry->sector = blk_rq_pos(rq);
162 __entry->nr_sector = nr_bytes >> 9;
163 __entry->errors = rq->errors;
164
165 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes);
166 blk_dump_cmd(__get_str(cmd), rq);
167 ),
168
169 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
170 MAJOR(__entry->dev), MINOR(__entry->dev),
171 __entry->rwbs, __get_str(cmd),
172 (unsigned long long)__entry->sector,
173 __entry->nr_sector, __entry->errors)
174);
175
176DECLARE_EVENT_CLASS(block_rq,
177
178 TP_PROTO(struct request_queue *q, struct request *rq),
179
180 TP_ARGS(q, rq),
181
182 TP_STRUCT__entry(
183 __field( dev_t, dev )
184 __field( sector_t, sector )
185 __field( unsigned int, nr_sector )
186 __field( unsigned int, bytes )
187 __array( char, rwbs, RWBS_LEN )
188 __array( char, comm, TASK_COMM_LEN )
189 __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
190 ),
191
192 TP_fast_assign(
193 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
194 __entry->sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
195 0 : blk_rq_pos(rq);
196 __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
197 0 : blk_rq_sectors(rq);
198 __entry->bytes = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
199 blk_rq_bytes(rq) : 0;
200
201 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
202 blk_dump_cmd(__get_str(cmd), rq);
203 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
204 ),
205
206 TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
207 MAJOR(__entry->dev), MINOR(__entry->dev),
208 __entry->rwbs, __entry->bytes, __get_str(cmd),
209 (unsigned long long)__entry->sector,
210 __entry->nr_sector, __entry->comm)
211);
212
213
214
215
216
217
218
219
220
221
222
223DEFINE_EVENT(block_rq, block_rq_insert,
224
225 TP_PROTO(struct request_queue *q, struct request *rq),
226
227 TP_ARGS(q, rq)
228);
229
230
231
232
233
234
235
236
237
238DEFINE_EVENT(block_rq, block_rq_issue,
239
240 TP_PROTO(struct request_queue *q, struct request *rq),
241
242 TP_ARGS(q, rq)
243);
244
245
246
247
248
249
250
251
252
253
254
255
256TRACE_EVENT(block_bio_bounce,
257
258 TP_PROTO(struct request_queue *q, struct bio *bio),
259
260 TP_ARGS(q, bio),
261
262 TP_STRUCT__entry(
263 __field( dev_t, dev )
264 __field( sector_t, sector )
265 __field( unsigned int, nr_sector )
266 __array( char, rwbs, RWBS_LEN )
267 __array( char, comm, TASK_COMM_LEN )
268 ),
269
270 TP_fast_assign(
271 __entry->dev = bio->bi_bdev ?
272 bio->bi_bdev->bd_dev : 0;
273 __entry->sector = bio->bi_sector;
274 __entry->nr_sector = bio_sectors(bio);
275 blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
276 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
277 ),
278
279 TP_printk("%d,%d %s %llu + %u [%s]",
280 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
281 (unsigned long long)__entry->sector,
282 __entry->nr_sector, __entry->comm)
283);
284
285
286
287
288
289
290
291
292
293
294TRACE_EVENT(block_bio_complete,
295
296 TP_PROTO(struct request_queue *q, struct bio *bio, int error),
297
298 TP_ARGS(q, bio, error),
299
300 TP_STRUCT__entry(
301 __field( dev_t, dev )
302 __field( sector_t, sector )
303 __field( unsigned, nr_sector )
304 __field( int, error )
305 __array( char, rwbs, RWBS_LEN)
306 ),
307
308 TP_fast_assign(
309 __entry->dev = bio->bi_bdev->bd_dev;
310 __entry->sector = bio->bi_sector;
311 __entry->nr_sector = bio_sectors(bio);
312 __entry->error = error;
313 blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
314 ),
315
316 TP_printk("%d,%d %s %llu + %u [%d]",
317 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
318 (unsigned long long)__entry->sector,
319 __entry->nr_sector, __entry->error)
320);
321
322DECLARE_EVENT_CLASS(block_bio_merge,
323
324 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
325
326 TP_ARGS(q, rq, bio),
327
328 TP_STRUCT__entry(
329 __field( dev_t, dev )
330 __field( sector_t, sector )
331 __field( unsigned int, nr_sector )
332 __array( char, rwbs, RWBS_LEN )
333 __array( char, comm, TASK_COMM_LEN )
334 ),
335
336 TP_fast_assign(
337 __entry->dev = bio->bi_bdev->bd_dev;
338 __entry->sector = bio->bi_sector;
339 __entry->nr_sector = bio_sectors(bio);
340 blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
341 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
342 ),
343
344 TP_printk("%d,%d %s %llu + %u [%s]",
345 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
346 (unsigned long long)__entry->sector,
347 __entry->nr_sector, __entry->comm)
348);
349
350
351
352
353
354
355
356
357
358
359DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
360
361 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
362
363 TP_ARGS(q, rq, bio)
364);
365
366
367
368
369
370
371
372
373
374
375DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
376
377 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
378
379 TP_ARGS(q, rq, bio)
380);
381
382
383
384
385
386
387
388
389TRACE_EVENT(block_bio_queue,
390
391 TP_PROTO(struct request_queue *q, struct bio *bio),
392
393 TP_ARGS(q, bio),
394
395 TP_STRUCT__entry(
396 __field( dev_t, dev )
397 __field( sector_t, sector )
398 __field( unsigned int, nr_sector )
399 __array( char, rwbs, RWBS_LEN )
400 __array( char, comm, TASK_COMM_LEN )
401 ),
402
403 TP_fast_assign(
404 __entry->dev = bio->bi_bdev->bd_dev;
405 __entry->sector = bio->bi_sector;
406 __entry->nr_sector = bio_sectors(bio);
407 blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
408 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
409 ),
410
411 TP_printk("%d,%d %s %llu + %u [%s]",
412 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
413 (unsigned long long)__entry->sector,
414 __entry->nr_sector, __entry->comm)
415);
416
417DECLARE_EVENT_CLASS(block_get_rq,
418
419 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
420
421 TP_ARGS(q, bio, rw),
422
423 TP_STRUCT__entry(
424 __field( dev_t, dev )
425 __field( sector_t, sector )
426 __field( unsigned int, nr_sector )
427 __array( char, rwbs, RWBS_LEN )
428 __array( char, comm, TASK_COMM_LEN )
429 ),
430
431 TP_fast_assign(
432 __entry->dev = bio ? bio->bi_bdev->bd_dev : 0;
433 __entry->sector = bio ? bio->bi_sector : 0;
434 __entry->nr_sector = bio ? bio_sectors(bio) : 0;
435 blk_fill_rwbs(__entry->rwbs,
436 bio ? bio->bi_rw : 0, __entry->nr_sector);
437 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
438 ),
439
440 TP_printk("%d,%d %s %llu + %u [%s]",
441 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
442 (unsigned long long)__entry->sector,
443 __entry->nr_sector, __entry->comm)
444);
445
446
447
448
449
450
451
452
453
454
455DEFINE_EVENT(block_get_rq, block_getrq,
456
457 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
458
459 TP_ARGS(q, bio, rw)
460);
461
462
463
464
465
466
467
468
469
470
471
472
473DEFINE_EVENT(block_get_rq, block_sleeprq,
474
475 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
476
477 TP_ARGS(q, bio, rw)
478);
479
480
481
482
483
484
485
486
487
488TRACE_EVENT(block_plug,
489
490 TP_PROTO(struct request_queue *q),
491
492 TP_ARGS(q),
493
494 TP_STRUCT__entry(
495 __array( char, comm, TASK_COMM_LEN )
496 ),
497
498 TP_fast_assign(
499 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
500 ),
501
502 TP_printk("[%s]", __entry->comm)
503);
504
505DECLARE_EVENT_CLASS(block_unplug,
506
507 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
508
509 TP_ARGS(q, depth, explicit),
510
511 TP_STRUCT__entry(
512 __field( int, nr_rq )
513 __array( char, comm, TASK_COMM_LEN )
514 ),
515
516 TP_fast_assign(
517 __entry->nr_rq = depth;
518 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
519 ),
520
521 TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
522);
523
524
525
526
527
528
529
530
531
532
533DEFINE_EVENT(block_unplug, block_unplug,
534
535 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
536
537 TP_ARGS(q, depth, explicit)
538);
539
540
541
542
543
544
545
546
547
548
549
550
551TRACE_EVENT(block_split,
552
553 TP_PROTO(struct request_queue *q, struct bio *bio,
554 unsigned int new_sector),
555
556 TP_ARGS(q, bio, new_sector),
557
558 TP_STRUCT__entry(
559 __field( dev_t, dev )
560 __field( sector_t, sector )
561 __field( sector_t, new_sector )
562 __array( char, rwbs, RWBS_LEN )
563 __array( char, comm, TASK_COMM_LEN )
564 ),
565
566 TP_fast_assign(
567 __entry->dev = bio->bi_bdev->bd_dev;
568 __entry->sector = bio->bi_sector;
569 __entry->new_sector = new_sector;
570 blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
571 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
572 ),
573
574 TP_printk("%d,%d %s %llu / %llu [%s]",
575 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
576 (unsigned long long)__entry->sector,
577 (unsigned long long)__entry->new_sector,
578 __entry->comm)
579);
580
581
582
583
584
585
586
587
588
589
590
591TRACE_EVENT(block_bio_remap,
592
593 TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
594 sector_t from),
595
596 TP_ARGS(q, bio, dev, from),
597
598 TP_STRUCT__entry(
599 __field( dev_t, dev )
600 __field( sector_t, sector )
601 __field( unsigned int, nr_sector )
602 __field( dev_t, old_dev )
603 __field( sector_t, old_sector )
604 __array( char, rwbs, RWBS_LEN)
605 ),
606
607 TP_fast_assign(
608 __entry->dev = bio->bi_bdev->bd_dev;
609 __entry->sector = bio->bi_sector;
610 __entry->nr_sector = bio_sectors(bio);
611 __entry->old_dev = dev;
612 __entry->old_sector = from;
613 blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
614 ),
615
616 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
617 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
618 (unsigned long long)__entry->sector,
619 __entry->nr_sector,
620 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
621 (unsigned long long)__entry->old_sector)
622);
623
624
625
626
627
628
629
630
631
632
633
634
635TRACE_EVENT(block_rq_remap,
636
637 TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
638 sector_t from),
639
640 TP_ARGS(q, rq, dev, from),
641
642 TP_STRUCT__entry(
643 __field( dev_t, dev )
644 __field( sector_t, sector )
645 __field( unsigned int, nr_sector )
646 __field( dev_t, old_dev )
647 __field( sector_t, old_sector )
648 __field( unsigned int, nr_bios )
649 __array( char, rwbs, RWBS_LEN)
650 ),
651
652 TP_fast_assign(
653 __entry->dev = disk_devt(rq->rq_disk);
654 __entry->sector = blk_rq_pos(rq);
655 __entry->nr_sector = blk_rq_sectors(rq);
656 __entry->old_dev = dev;
657 __entry->old_sector = from;
658 __entry->nr_bios = blk_rq_count_bios(rq);
659 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
660 ),
661
662 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u",
663 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
664 (unsigned long long)__entry->sector,
665 __entry->nr_sector,
666 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
667 (unsigned long long)__entry->old_sector, __entry->nr_bios)
668);
669
670#endif
671
672
673#include <trace/define_trace.h>
674
675