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
73TRACE_EVENT(block_rq_requeue,
74
75 TP_PROTO(struct request *rq),
76
77 TP_ARGS(rq),
78
79 TP_STRUCT__entry(
80 __field( dev_t, dev )
81 __field( sector_t, sector )
82 __field( unsigned int, nr_sector )
83 __array( char, rwbs, RWBS_LEN )
84 __dynamic_array( char, cmd, 1 )
85 ),
86
87 TP_fast_assign(
88 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
89 __entry->sector = blk_rq_trace_sector(rq);
90 __entry->nr_sector = blk_rq_trace_nr_sectors(rq);
91
92 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
93 __get_str(cmd)[0] = '\0';
94 ),
95
96 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
97 MAJOR(__entry->dev), MINOR(__entry->dev),
98 __entry->rwbs, __get_str(cmd),
99 (unsigned long long)__entry->sector,
100 __entry->nr_sector, 0)
101);
102
103
104
105
106
107
108
109
110
111
112
113
114
115TRACE_EVENT(block_rq_complete,
116
117 TP_PROTO(struct request *rq, int error, unsigned int nr_bytes),
118
119 TP_ARGS(rq, error, nr_bytes),
120
121 TP_STRUCT__entry(
122 __field( dev_t, dev )
123 __field( sector_t, sector )
124 __field( unsigned int, nr_sector )
125 __field( int, error )
126 __array( char, rwbs, RWBS_LEN )
127 __dynamic_array( char, cmd, 1 )
128 ),
129
130 TP_fast_assign(
131 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
132 __entry->sector = blk_rq_pos(rq);
133 __entry->nr_sector = nr_bytes >> 9;
134 __entry->error = error;
135
136 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
137 __get_str(cmd)[0] = '\0';
138 ),
139
140 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
141 MAJOR(__entry->dev), MINOR(__entry->dev),
142 __entry->rwbs, __get_str(cmd),
143 (unsigned long long)__entry->sector,
144 __entry->nr_sector, __entry->error)
145);
146
147DECLARE_EVENT_CLASS(block_rq,
148
149 TP_PROTO(struct request *rq),
150
151 TP_ARGS(rq),
152
153 TP_STRUCT__entry(
154 __field( dev_t, dev )
155 __field( sector_t, sector )
156 __field( unsigned int, nr_sector )
157 __field( unsigned int, bytes )
158 __array( char, rwbs, RWBS_LEN )
159 __array( char, comm, TASK_COMM_LEN )
160 __dynamic_array( char, cmd, 1 )
161 ),
162
163 TP_fast_assign(
164 __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
165 __entry->sector = blk_rq_trace_sector(rq);
166 __entry->nr_sector = blk_rq_trace_nr_sectors(rq);
167 __entry->bytes = blk_rq_bytes(rq);
168
169 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
170 __get_str(cmd)[0] = '\0';
171 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
172 ),
173
174 TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
175 MAJOR(__entry->dev), MINOR(__entry->dev),
176 __entry->rwbs, __entry->bytes, __get_str(cmd),
177 (unsigned long long)__entry->sector,
178 __entry->nr_sector, __entry->comm)
179);
180
181
182
183
184
185
186
187
188
189
190DEFINE_EVENT(block_rq, block_rq_insert,
191
192 TP_PROTO(struct request *rq),
193
194 TP_ARGS(rq)
195);
196
197
198
199
200
201
202
203
204DEFINE_EVENT(block_rq, block_rq_issue,
205
206 TP_PROTO(struct request *rq),
207
208 TP_ARGS(rq)
209);
210
211
212
213
214
215
216
217
218DEFINE_EVENT(block_rq, block_rq_merge,
219
220 TP_PROTO(struct request *rq),
221
222 TP_ARGS(rq)
223);
224
225
226
227
228
229
230
231
232
233TRACE_EVENT(block_bio_complete,
234
235 TP_PROTO(struct request_queue *q, struct bio *bio),
236
237 TP_ARGS(q, bio),
238
239 TP_STRUCT__entry(
240 __field( dev_t, dev )
241 __field( sector_t, sector )
242 __field( unsigned, nr_sector )
243 __field( int, error )
244 __array( char, rwbs, RWBS_LEN)
245 ),
246
247 TP_fast_assign(
248 __entry->dev = bio_dev(bio);
249 __entry->sector = bio->bi_iter.bi_sector;
250 __entry->nr_sector = bio_sectors(bio);
251 __entry->error = blk_status_to_errno(bio->bi_status);
252 blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
253 ),
254
255 TP_printk("%d,%d %s %llu + %u [%d]",
256 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
257 (unsigned long long)__entry->sector,
258 __entry->nr_sector, __entry->error)
259);
260
261DECLARE_EVENT_CLASS(block_bio,
262
263 TP_PROTO(struct bio *bio),
264
265 TP_ARGS(bio),
266
267 TP_STRUCT__entry(
268 __field( dev_t, dev )
269 __field( sector_t, sector )
270 __field( unsigned int, nr_sector )
271 __array( char, rwbs, RWBS_LEN )
272 __array( char, comm, TASK_COMM_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 blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
280 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
281 ),
282
283 TP_printk("%d,%d %s %llu + %u [%s]",
284 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
285 (unsigned long long)__entry->sector,
286 __entry->nr_sector, __entry->comm)
287);
288
289
290
291
292
293
294
295
296
297
298
299DEFINE_EVENT(block_bio, block_bio_bounce,
300 TP_PROTO(struct bio *bio),
301 TP_ARGS(bio)
302);
303
304
305
306
307
308
309
310DEFINE_EVENT(block_bio, block_bio_backmerge,
311 TP_PROTO(struct bio *bio),
312 TP_ARGS(bio)
313);
314
315
316
317
318
319
320
321DEFINE_EVENT(block_bio, block_bio_frontmerge,
322 TP_PROTO(struct bio *bio),
323 TP_ARGS(bio)
324);
325
326
327
328
329
330
331
332DEFINE_EVENT(block_bio, block_bio_queue,
333 TP_PROTO(struct bio *bio),
334 TP_ARGS(bio)
335);
336
337
338
339
340
341
342
343DEFINE_EVENT(block_bio, block_getrq,
344 TP_PROTO(struct bio *bio),
345 TP_ARGS(bio)
346);
347
348
349
350
351
352
353
354
355
356TRACE_EVENT(block_plug,
357
358 TP_PROTO(struct request_queue *q),
359
360 TP_ARGS(q),
361
362 TP_STRUCT__entry(
363 __array( char, comm, TASK_COMM_LEN )
364 ),
365
366 TP_fast_assign(
367 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
368 ),
369
370 TP_printk("[%s]", __entry->comm)
371);
372
373DECLARE_EVENT_CLASS(block_unplug,
374
375 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
376
377 TP_ARGS(q, depth, explicit),
378
379 TP_STRUCT__entry(
380 __field( int, nr_rq )
381 __array( char, comm, TASK_COMM_LEN )
382 ),
383
384 TP_fast_assign(
385 __entry->nr_rq = depth;
386 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
387 ),
388
389 TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
390);
391
392
393
394
395
396
397
398
399
400
401DEFINE_EVENT(block_unplug, block_unplug,
402
403 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
404
405 TP_ARGS(q, depth, explicit)
406);
407
408
409
410
411
412
413
414
415
416
417
418TRACE_EVENT(block_split,
419
420 TP_PROTO(struct bio *bio, unsigned int new_sector),
421
422 TP_ARGS(bio, new_sector),
423
424 TP_STRUCT__entry(
425 __field( dev_t, dev )
426 __field( sector_t, sector )
427 __field( sector_t, new_sector )
428 __array( char, rwbs, RWBS_LEN )
429 __array( char, comm, TASK_COMM_LEN )
430 ),
431
432 TP_fast_assign(
433 __entry->dev = bio_dev(bio);
434 __entry->sector = bio->bi_iter.bi_sector;
435 __entry->new_sector = new_sector;
436 blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
437 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
438 ),
439
440 TP_printk("%d,%d %s %llu / %llu [%s]",
441 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
442 (unsigned long long)__entry->sector,
443 (unsigned long long)__entry->new_sector,
444 __entry->comm)
445);
446
447
448
449
450
451
452
453
454
455
456TRACE_EVENT(block_bio_remap,
457
458 TP_PROTO(struct bio *bio, dev_t dev, sector_t from),
459
460 TP_ARGS(bio, dev, from),
461
462 TP_STRUCT__entry(
463 __field( dev_t, dev )
464 __field( sector_t, sector )
465 __field( unsigned int, nr_sector )
466 __field( dev_t, old_dev )
467 __field( sector_t, old_sector )
468 __array( char, rwbs, RWBS_LEN)
469 ),
470
471 TP_fast_assign(
472 __entry->dev = bio_dev(bio);
473 __entry->sector = bio->bi_iter.bi_sector;
474 __entry->nr_sector = bio_sectors(bio);
475 __entry->old_dev = dev;
476 __entry->old_sector = from;
477 blk_fill_rwbs(__entry->rwbs, bio->bi_opf);
478 ),
479
480 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
481 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
482 (unsigned long long)__entry->sector,
483 __entry->nr_sector,
484 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
485 (unsigned long long)__entry->old_sector)
486);
487
488
489
490
491
492
493
494
495
496
497
498TRACE_EVENT(block_rq_remap,
499
500 TP_PROTO(struct request *rq, dev_t dev, sector_t from),
501
502 TP_ARGS(rq, dev, from),
503
504 TP_STRUCT__entry(
505 __field( dev_t, dev )
506 __field( sector_t, sector )
507 __field( unsigned int, nr_sector )
508 __field( dev_t, old_dev )
509 __field( sector_t, old_sector )
510 __field( unsigned int, nr_bios )
511 __array( char, rwbs, RWBS_LEN)
512 ),
513
514 TP_fast_assign(
515 __entry->dev = disk_devt(rq->rq_disk);
516 __entry->sector = blk_rq_pos(rq);
517 __entry->nr_sector = blk_rq_sectors(rq);
518 __entry->old_dev = dev;
519 __entry->old_sector = from;
520 __entry->nr_bios = blk_rq_count_bios(rq);
521 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags);
522 ),
523
524 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u",
525 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
526 (unsigned long long)__entry->sector,
527 __entry->nr_sector,
528 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
529 (unsigned long long)__entry->old_sector, __entry->nr_bios)
530);
531
532#endif
533
534
535#include <trace/define_trace.h>
536
537