projects / lttng-modules.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Add TID field to some block_* events
[lttng-modules.git] / instrumentation / events / lttng-module / block.h
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/tracepoint.h>
10 #include <linux/trace_seq.h>
11 #include <linux/version.h>
12
13 #define RWBS_LEN 8
14
15 #ifndef _TRACE_BLOCK_DEF_
16 #define _TRACE_BLOCK_DEF_
17
18 #define __blk_dump_cmd(cmd, len) "<unknown>"
19
20 enum {
21 RWBS_FLAG_WRITE = (1 << 0),
22 RWBS_FLAG_DISCARD = (1 << 1),
23 RWBS_FLAG_READ = (1 << 2),
24 RWBS_FLAG_RAHEAD = (1 << 3),
25 RWBS_FLAG_BARRIER = (1 << 4),
26 RWBS_FLAG_SYNC = (1 << 5),
27 RWBS_FLAG_META = (1 << 6),
28 RWBS_FLAG_SECURE = (1 << 7),
29 RWBS_FLAG_FLUSH = (1 << 8),
30 RWBS_FLAG_FUA = (1 << 9),
31 };
32
33 #endif /* _TRACE_BLOCK_DEF_ */
34
35 #define __print_rwbs_flags(rwbs) \
36 __print_flags(rwbs, "", \
37 { RWBS_FLAG_FLUSH, "F" }, \
38 { RWBS_FLAG_WRITE, "W" }, \
39 { RWBS_FLAG_DISCARD, "D" }, \
40 { RWBS_FLAG_READ, "R" }, \
41 { RWBS_FLAG_FUA, "F" }, \
42 { RWBS_FLAG_RAHEAD, "A" }, \
43 { RWBS_FLAG_BARRIER, "B" }, \
44 { RWBS_FLAG_SYNC, "S" }, \
45 { RWBS_FLAG_META, "M" }, \
46 { RWBS_FLAG_SECURE, "E" })
47
48 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
49
50 #define blk_fill_rwbs(rwbs, rw, bytes) \
51 tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
52 ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \
53 ( (bytes) ? RWBS_FLAG_READ : \
54 ( 0 )))) \
55 | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \
56 | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \
57 | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \
58 | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0) \
59 | ((rw) & REQ_FLUSH ? RWBS_FLAG_FLUSH : 0) \
60 | ((rw) & REQ_FUA ? RWBS_FLAG_FUA : 0))
61
62 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
63
64 #define blk_fill_rwbs(rwbs, rw, bytes) \
65 tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
66 ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \
67 ( (bytes) ? RWBS_FLAG_READ : \
68 ( 0 )))) \
69 | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \
70 | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \
71 | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \
72 | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0))
73
74 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
75
76 #define blk_fill_rwbs(rwbs, rw, bytes) \
77 tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
78 ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \
79 ( (bytes) ? RWBS_FLAG_READ : \
80 ( 0 )))) \
81 | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \
82 | ((rw) & REQ_HARDBARRIER ? RWBS_FLAG_BARRIER : 0) \
83 | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \
84 | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \
85 | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0))
86
87 #else
88
89 #define blk_fill_rwbs(rwbs, rw, bytes) \
90 tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
91 ( (rw) & (1 << BIO_RW_DISCARD) ? RWBS_FLAG_DISCARD : \
92 ( (bytes) ? RWBS_FLAG_READ : \
93 ( 0 )))) \
94 | ((rw) & (1 << BIO_RW_AHEAD) ? RWBS_FLAG_RAHEAD : 0) \
95 | ((rw) & (1 << BIO_RW_SYNCIO) ? RWBS_FLAG_SYNC : 0) \
96 | ((rw) & (1 << BIO_RW_META) ? RWBS_FLAG_META : 0) \
97 | ((rw) & (1 << BIO_RW_BARRIER) ? RWBS_FLAG_BARRIER : 0))
98
99 #endif
100
101 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
102 DECLARE_EVENT_CLASS(block_buffer,
103
104 TP_PROTO(struct buffer_head *bh),
105
106 TP_ARGS(bh),
107
108 TP_STRUCT__entry (
109 __field( dev_t, dev )
110 __field( sector_t, sector )
111 __field( size_t, size )
112 ),
113
114 TP_fast_assign(
115 tp_assign(dev, bh->b_bdev->bd_dev)
116 tp_assign(sector, bh->b_blocknr)
117 tp_assign(size, bh->b_size)
118 ),
119
120 TP_printk("%d,%d sector=%llu size=%zu",
121 MAJOR(__entry->dev), MINOR(__entry->dev),
122 (unsigned long long)__entry->sector, __entry->size
123 )
124 )
125
126 /**
127 * block_touch_buffer - mark a buffer accessed
128 * @bh: buffer_head being touched
129 *
130 * Called from touch_buffer().
131 */
132 DEFINE_EVENT(block_buffer, block_touch_buffer,
133
134 TP_PROTO(struct buffer_head *bh),
135
136 TP_ARGS(bh)
137 )
138
139 /**
140 * block_dirty_buffer - mark a buffer dirty
141 * @bh: buffer_head being dirtied
142 *
143 * Called from mark_buffer_dirty().
144 */
145 DEFINE_EVENT(block_buffer, block_dirty_buffer,
146
147 TP_PROTO(struct buffer_head *bh),
148
149 TP_ARGS(bh)
150 )
151 #endif
152
153 DECLARE_EVENT_CLASS(block_rq_with_error,
154
155 TP_PROTO(struct request_queue *q, struct request *rq),
156
157 TP_ARGS(q, rq),
158
159 TP_STRUCT__entry(
160 __field( dev_t, dev )
161 __field( sector_t, sector )
162 __field( unsigned int, nr_sector )
163 __field( int, errors )
164 __field( unsigned int, rwbs )
165 __dynamic_array_hex( unsigned char, cmd,
166 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
167 rq->cmd_len : 0)
168 ),
169
170 TP_fast_assign(
171 tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0)
172 tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
173 0 : blk_rq_pos(rq))
174 tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
175 0 : blk_rq_sectors(rq))
176 tp_assign(errors, rq->errors)
177 blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq))
178 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
179 rq->cmd : NULL)
180 ),
181
182 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
183 MAJOR(__entry->dev), MINOR(__entry->dev),
184 __print_rwbs_flags(__entry->rwbs),
185 __blk_dump_cmd(__get_dynamic_array(cmd),
186 __get_dynamic_array_len(cmd)),
187 (unsigned long long)__entry->sector,
188 __entry->nr_sector, __entry->errors)
189 )
190
191 /**
192 * block_rq_abort - abort block operation request
193 * @q: queue containing the block operation request
194 * @rq: block IO operation request
195 *
196 * Called immediately after pending block IO operation request @rq in
197 * queue @q is aborted. The fields in the operation request @rq
198 * can be examined to determine which device and sectors the pending
199 * operation would access.
200 */
201 DEFINE_EVENT(block_rq_with_error, block_rq_abort,
202
203 TP_PROTO(struct request_queue *q, struct request *rq),
204
205 TP_ARGS(q, rq)
206 )
207
208 /**
209 * block_rq_requeue - place block IO request back on a queue
210 * @q: queue holding operation
211 * @rq: block IO operation request
212 *
213 * The block operation request @rq is being placed back into queue
214 * @q. For some reason the request was not completed and needs to be
215 * put back in the queue.
216 */
217 DEFINE_EVENT(block_rq_with_error, block_rq_requeue,
218
219 TP_PROTO(struct request_queue *q, struct request *rq),
220
221 TP_ARGS(q, rq)
222 )
223
224 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0) \
225 || LTTNG_KERNEL_RANGE(3,2,58, 3,3,0))
226
227 /**
228 * block_rq_complete - block IO operation completed by device driver
229 * @q: queue containing the block operation request
230 * @rq: block operations request
231 * @nr_bytes: number of completed bytes
232 *
233 * The block_rq_complete tracepoint event indicates that some portion
234 * of operation request has been completed by the device driver. If
235 * the @rq->bio is %NULL, then there is absolutely no additional work to
236 * do for the request. If @rq->bio is non-NULL then there is
237 * additional work required to complete the request.
238 */
239 TRACE_EVENT(block_rq_complete,
240
241 TP_PROTO(struct request_queue *q, struct request *rq,
242 unsigned int nr_bytes),
243
244 TP_ARGS(q, rq, nr_bytes),
245
246 TP_STRUCT__entry(
247 __field( dev_t, dev )
248 __field( sector_t, sector )
249 __field( unsigned int, nr_sector )
250 __field( int, errors )
251 __field( unsigned int, rwbs )
252 __dynamic_array_hex( unsigned char, cmd,
253 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
254 rq->cmd_len : 0)
255 ),
256
257 TP_fast_assign(
258 tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0)
259 tp_assign(sector, blk_rq_pos(rq))
260 tp_assign(nr_sector, nr_bytes >> 9)
261 tp_assign(errors, rq->errors)
262 blk_fill_rwbs(rwbs, rq->cmd_flags, nr_bytes)
263 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
264 rq->cmd : NULL)
265 ),
266
267 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
268 MAJOR(__entry->dev), MINOR(__entry->dev),
269 __entry->rwbs, __get_str(cmd),
270 (unsigned long long)__entry->sector,
271 __entry->nr_sector, __entry->errors)
272 )
273
274 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
275
276 /**
277 * block_rq_complete - block IO operation completed by device driver
278 * @q: queue containing the block operation request
279 * @rq: block operations request
280 *
281 * The block_rq_complete tracepoint event indicates that some portion
282 * of operation request has been completed by the device driver. If
283 * the @rq->bio is %NULL, then there is absolutely no additional work to
284 * do for the request. If @rq->bio is non-NULL then there is
285 * additional work required to complete the request.
286 */
287 DEFINE_EVENT(block_rq_with_error, block_rq_complete,
288
289 TP_PROTO(struct request_queue *q, struct request *rq),
290
291 TP_ARGS(q, rq)
292 )
293
294 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
295
296 DECLARE_EVENT_CLASS(block_rq,
297
298 TP_PROTO(struct request_queue *q, struct request *rq),
299
300 TP_ARGS(q, rq),
301
302 TP_STRUCT__entry(
303 __field( dev_t, dev )
304 __field( sector_t, sector )
305 __field( unsigned int, nr_sector )
306 __field( unsigned int, bytes )
307 __field( unsigned int, rwbs )
308 __field( pid_t, tid )
309 __array_text( char, comm, TASK_COMM_LEN )
310 __dynamic_array_hex( unsigned char, cmd,
311 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
312 rq->cmd_len : 0)
313 ),
314
315 TP_fast_assign(
316 tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0)
317 tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
318 0 : blk_rq_pos(rq))
319 tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
320 0 : blk_rq_sectors(rq))
321 tp_assign(bytes, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
322 blk_rq_bytes(rq) : 0)
323 blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq))
324 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
325 rq->cmd : NULL)
326 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
327 tp_assign(tid, current->pid)
328 ),
329
330 TP_printk("%d,%d %s %u (%s) %llu + %u [%s] %d",
331 MAJOR(__entry->dev), MINOR(__entry->dev),
332 __print_rwbs_flags(__entry->rwbs),
333 __entry->bytes,
334 __blk_dump_cmd(__get_dynamic_array(cmd),
335 __get_dynamic_array_len(cmd)),
336 (unsigned long long)__entry->sector,
337 __entry->nr_sector, __entry->comm, __entry->tid)
338 )
339
340 /**
341 * block_rq_insert - insert block operation request into queue
342 * @q: target queue
343 * @rq: block IO operation request
344 *
345 * Called immediately before block operation request @rq is inserted
346 * into queue @q. The fields in the operation request @rq struct can
347 * be examined to determine which device and sectors the pending
348 * operation would access.
349 */
350 DEFINE_EVENT(block_rq, block_rq_insert,
351
352 TP_PROTO(struct request_queue *q, struct request *rq),
353
354 TP_ARGS(q, rq)
355 )
356
357 /**
358 * block_rq_issue - issue pending block IO request operation to device driver
359 * @q: queue holding operation
360 * @rq: block IO operation operation request
361 *
362 * Called when block operation request @rq from queue @q is sent to a
363 * device driver for processing.
364 */
365 DEFINE_EVENT(block_rq, block_rq_issue,
366
367 TP_PROTO(struct request_queue *q, struct request *rq),
368
369 TP_ARGS(q, rq)
370 )
371
372 /**
373 * block_bio_bounce - used bounce buffer when processing block operation
374 * @q: queue holding the block operation
375 * @bio: block operation
376 *
377 * A bounce buffer was used to handle the block operation @bio in @q.
378 * This occurs when hardware limitations prevent a direct transfer of
379 * data between the @bio data memory area and the IO device. Use of a
380 * bounce buffer requires extra copying of data and decreases
381 * performance.
382 */
383 TRACE_EVENT(block_bio_bounce,
384
385 TP_PROTO(struct request_queue *q, struct bio *bio),
386
387 TP_ARGS(q, bio),
388
389 TP_STRUCT__entry(
390 __field( dev_t, dev )
391 __field( sector_t, sector )
392 __field( unsigned int, nr_sector )
393 __field( unsigned int, rwbs )
394 __field( pid_t, tid )
395 __array_text( char, comm, TASK_COMM_LEN )
396 ),
397
398 TP_fast_assign(
399 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
400 tp_assign(dev, bio->bi_bdev ?
401 bio->bi_bdev->bd_dev : 0)
402 tp_assign(sector, bio->bi_iter.bi_sector)
403 tp_assign(nr_sector, bio_sectors(bio))
404 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
405 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
406 tp_assign(tid, current->pid)
407 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
408 tp_assign(dev, bio->bi_bdev ?
409 bio->bi_bdev->bd_dev : 0)
410 tp_assign(sector, bio->bi_sector)
411 tp_assign(nr_sector, bio->bi_size >> 9)
412 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
413 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
414 tp_assign(tid, current->pid)
415 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
416 ),
417
418 TP_printk("%d,%d %s %llu + %u [%s] %d",
419 MAJOR(__entry->dev), MINOR(__entry->dev),
420 __print_rwbs_flags(__entry->rwbs),
421 (unsigned long long)__entry->sector,
422 __entry->nr_sector, __entry->comm, __entry->tid)
423 )
424
425 /**
426 * block_bio_complete - completed all work on the block operation
427 * @q: queue holding the block operation
428 * @bio: block operation completed
429 * @error: io error value
430 *
431 * This tracepoint indicates there is no further work to do on this
432 * block IO operation @bio.
433 */
434 TRACE_EVENT(block_bio_complete,
435
436 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
437 TP_PROTO(struct request_queue *q, struct bio *bio, int error),
438
439 TP_ARGS(q, bio, error),
440 #else
441 TP_PROTO(struct request_queue *q, struct bio *bio),
442
443 TP_ARGS(q, bio),
444 #endif
445
446 TP_STRUCT__entry(
447 __field( dev_t, dev )
448 __field( sector_t, sector )
449 __field( unsigned, nr_sector )
450 __field( int, error )
451 __field( unsigned int, rwbs )
452 ),
453
454 TP_fast_assign(
455 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
456 tp_assign(dev, bio->bi_bdev->bd_dev)
457 tp_assign(sector, bio->bi_iter.bi_sector)
458 tp_assign(nr_sector, bio_sectors(bio))
459 tp_assign(error, error)
460 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
461 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
462 tp_assign(dev, bio->bi_bdev->bd_dev)
463 tp_assign(sector, bio->bi_sector)
464 tp_assign(nr_sector, bio->bi_size >> 9)
465 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
466 tp_assign(error, error)
467 #else
468 tp_assign(error, 0)
469 #endif
470 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
471 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
472 ),
473
474 TP_printk("%d,%d %s %llu + %u [%d]",
475 MAJOR(__entry->dev), MINOR(__entry->dev),
476 __print_rwbs_flags(__entry->rwbs),
477 (unsigned long long)__entry->sector,
478 __entry->nr_sector, __entry->error)
479 )
480
481 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
482 DECLARE_EVENT_CLASS(block_bio_merge,
483
484 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
485
486 TP_ARGS(q, rq, bio),
487
488 TP_STRUCT__entry(
489 __field( dev_t, dev )
490 __field( sector_t, sector )
491 __field( unsigned int, nr_sector )
492 __field( unsigned int, rwbs )
493 __field( pid_t, tid )
494 __array_text( char, comm, TASK_COMM_LEN )
495 ),
496
497 TP_fast_assign(
498 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
499 tp_assign(dev, bio->bi_bdev->bd_dev)
500 tp_assign(sector, bio->bi_iter.bi_sector)
501 tp_assign(nr_sector, bio_sectors(bio))
502 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
503 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
504 tp_assign(tid, current->pid)
505 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
506 tp_assign(dev, bio->bi_bdev->bd_dev)
507 tp_assign(sector, bio->bi_sector)
508 tp_assign(nr_sector, bio->bi_size >> 9)
509 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
510 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
511 tp_assign(tid, current->pid)
512 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
513 ),
514
515 TP_printk("%d,%d %s %llu + %u [%s] %d",
516 MAJOR(__entry->dev), MINOR(__entry->dev),
517 __print_rwbs_flags(__entry->rwbs),
518 (unsigned long long)__entry->sector,
519 __entry->nr_sector, __entry->comm, __entry->tid)
520 )
521
522 /**
523 * block_bio_backmerge - merging block operation to the end of an existing operation
524 * @q: queue holding operation
525 * @bio: new block operation to merge
526 *
527 * Merging block request @bio to the end of an existing block request
528 * in queue @q.
529 */
530 DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
531
532 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
533
534 TP_ARGS(q, rq, bio)
535 )
536
537 /**
538 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
539 * @q: queue holding operation
540 * @bio: new block operation to merge
541 *
542 * Merging block IO operation @bio to the beginning of an existing block
543 * operation in queue @q.
544 */
545 DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
546
547 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
548
549 TP_ARGS(q, rq, bio)
550 )
551
552 /**
553 * block_bio_queue - putting new block IO operation in queue
554 * @q: queue holding operation
555 * @bio: new block operation
556 *
557 * About to place the block IO operation @bio into queue @q.
558 */
559 TRACE_EVENT(block_bio_queue,
560
561 TP_PROTO(struct request_queue *q, struct bio *bio),
562
563 TP_ARGS(q, bio),
564
565 TP_STRUCT__entry(
566 __field( dev_t, dev )
567 __field( sector_t, sector )
568 __field( unsigned int, nr_sector )
569 __field( unsigned int, rwbs )
570 __field( pid_t, tid )
571 __array_text( char, comm, TASK_COMM_LEN )
572 ),
573
574 TP_fast_assign(
575 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
576 tp_assign(dev, bio->bi_bdev->bd_dev)
577 tp_assign(sector, bio->bi_iter.bi_sector)
578 tp_assign(nr_sector, bio_sectors(bio))
579 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
580 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
581 tp_assign(tid, current->pid)
582 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
583 tp_assign(dev, bio->bi_bdev->bd_dev)
584 tp_assign(sector, bio->bi_sector)
585 tp_assign(nr_sector, bio->bi_size >> 9)
586 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
587 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
588 tp_assign(tid, current->pid)
589 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
590 ),
591
592 TP_printk("%d,%d %s %llu + %u [%s] %d",
593 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
594 (unsigned long long)__entry->sector,
595 __entry->nr_sector, __entry->comm, __entry->tid)
596 )
597 #else
598 DECLARE_EVENT_CLASS(block_bio,
599
600 TP_PROTO(struct request_queue *q, struct bio *bio),
601
602 TP_ARGS(q, bio),
603
604 TP_STRUCT__entry(
605 __field( dev_t, dev )
606 __field( sector_t, sector )
607 __field( unsigned int, nr_sector )
608 __field( unsigned int, rwbs )
609 __field( pid_t, tid )
610 __array_text( char, comm, TASK_COMM_LEN )
611 ),
612
613 TP_fast_assign(
614 tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0)
615 tp_assign(sector, bio->bi_sector)
616 tp_assign(nr_sector, bio->bi_size >> 9)
617 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
618 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
619 tp_assign(tid, current->pid)
620 ),
621
622 TP_printk("%d,%d %s %llu + %u [%s] %d",
623 MAJOR(__entry->dev), MINOR(__entry->dev),
624 __print_rwbs_flags(__entry->rwbs),
625 (unsigned long long)__entry->sector,
626 __entry->nr_sector, __entry->comm, __entry->tid)
627 )
628
629 /**
630 * block_bio_backmerge - merging block operation to the end of an existing operation
631 * @q: queue holding operation
632 * @bio: new block operation to merge
633 *
634 * Merging block request @bio to the end of an existing block request
635 * in queue @q.
636 */
637 DEFINE_EVENT(block_bio, block_bio_backmerge,
638
639 TP_PROTO(struct request_queue *q, struct bio *bio),
640
641 TP_ARGS(q, bio)
642 )
643
644 /**
645 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
646 * @q: queue holding operation
647 * @bio: new block operation to merge
648 *
649 * Merging block IO operation @bio to the beginning of an existing block
650 * operation in queue @q.
651 */
652 DEFINE_EVENT(block_bio, block_bio_frontmerge,
653
654 TP_PROTO(struct request_queue *q, struct bio *bio),
655
656 TP_ARGS(q, bio)
657 )
658
659 /**
660 * block_bio_queue - putting new block IO operation in queue
661 * @q: queue holding operation
662 * @bio: new block operation
663 *
664 * About to place the block IO operation @bio into queue @q.
665 */
666 DEFINE_EVENT(block_bio, block_bio_queue,
667
668 TP_PROTO(struct request_queue *q, struct bio *bio),
669
670 TP_ARGS(q, bio)
671 )
672 #endif
673
674 DECLARE_EVENT_CLASS(block_get_rq,
675
676 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
677
678 TP_ARGS(q, bio, rw),
679
680 TP_STRUCT__entry(
681 __field( dev_t, dev )
682 __field( sector_t, sector )
683 __field( unsigned int, nr_sector )
684 __field( unsigned int, rwbs )
685 __field( pid_t, tid )
686 __array_text( char, comm, TASK_COMM_LEN )
687 ),
688
689 TP_fast_assign(
690 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
691 tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0)
692 tp_assign(sector, bio ? bio->bi_iter.bi_sector : 0)
693 tp_assign(nr_sector, bio ? bio_sectors(bio) : 0)
694 blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0,
695 bio ? bio_sectors(bio) : 0)
696 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
697 tp_assign(tid, current->pid)
698 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
699 tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0)
700 tp_assign(sector, bio ? bio->bi_sector : 0)
701 tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0)
702 blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0,
703 bio ? bio->bi_size >> 9 : 0)
704 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
705 tp_assign(tid, current->pid)
706 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
707 ),
708
709 TP_printk("%d,%d %s %llu + %u [%s] %d",
710 MAJOR(__entry->dev), MINOR(__entry->dev),
711 __print_rwbs_flags(__entry->rwbs),
712 (unsigned long long)__entry->sector,
713 __entry->nr_sector, __entry->comm, __entry->tid)
714 )
715
716 /**
717 * block_getrq - get a free request entry in queue for block IO operations
718 * @q: queue for operations
719 * @bio: pending block IO operation
720 * @rw: low bit indicates a read (%0) or a write (%1)
721 *
722 * A request struct for queue @q has been allocated to handle the
723 * block IO operation @bio.
724 */
725 DEFINE_EVENT(block_get_rq, block_getrq,
726
727 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
728
729 TP_ARGS(q, bio, rw)
730 )
731
732 /**
733 * block_sleeprq - waiting to get a free request entry in queue for block IO operation
734 * @q: queue for operation
735 * @bio: pending block IO operation
736 * @rw: low bit indicates a read (%0) or a write (%1)
737 *
738 * In the case where a request struct cannot be provided for queue @q
739 * the process needs to wait for an request struct to become
740 * available. This tracepoint event is generated each time the
741 * process goes to sleep waiting for request struct become available.
742 */
743 DEFINE_EVENT(block_get_rq, block_sleeprq,
744
745 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
746
747 TP_ARGS(q, bio, rw)
748 )
749
750 /**
751 * block_plug - keep operations requests in request queue
752 * @q: request queue to plug
753 *
754 * Plug the request queue @q. Do not allow block operation requests
755 * to be sent to the device driver. Instead, accumulate requests in
756 * the queue to improve throughput performance of the block device.
757 */
758 TRACE_EVENT(block_plug,
759
760 TP_PROTO(struct request_queue *q),
761
762 TP_ARGS(q),
763
764 TP_STRUCT__entry(
765 __field( pid_t, tid )
766 __array_text( char, comm, TASK_COMM_LEN )
767 ),
768
769 TP_fast_assign(
770 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
771 tp_assign(tid, current->pid)
772 ),
773
774 TP_printk("[%s] %d", __entry->comm, __entry->tid)
775 )
776
777 DECLARE_EVENT_CLASS(block_unplug,
778
779 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
780 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
781
782 TP_ARGS(q, depth, explicit),
783 #else
784 TP_PROTO(struct request_queue *q),
785
786 TP_ARGS(q),
787 #endif
788
789 TP_STRUCT__entry(
790 __field( int, nr_rq )
791 __field( pid_t, tid )
792 __array_text( char, comm, TASK_COMM_LEN )
793 ),
794
795 TP_fast_assign(
796 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
797 tp_assign(nr_rq, depth)
798 #else
799 tp_assign(nr_rq, q->rq.count[READ] + q->rq.count[WRITE])
800 #endif
801 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
802 tp_assign(tid, current->pid)
803 ),
804
805 TP_printk("[%s] %d %d", __entry->comm, , __entry->tid,
806 __entry->nr_rq)
807 )
808
809 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
810 /**
811 * block_unplug_timer - timed release of operations requests in queue to device driver
812 * @q: request queue to unplug
813 *
814 * Unplug the request queue @q because a timer expired and allow block
815 * operation requests to be sent to the device driver.
816 */
817 DEFINE_EVENT(block_unplug, block_unplug_timer,
818
819 TP_PROTO(struct request_queue *q),
820
821 TP_ARGS(q)
822 )
823 #endif
824
825 /**
826 * block_unplug - release of operations requests in request queue
827 * @q: request queue to unplug
828 * @depth: number of requests just added to the queue
829 * @explicit: whether this was an explicit unplug, or one from schedule()
830 *
831 * Unplug request queue @q because device driver is scheduled to work
832 * on elements in the request queue.
833 */
834 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
835 DEFINE_EVENT(block_unplug, block_unplug,
836 #else
837 DEFINE_EVENT(block_unplug, block_unplug_io,
838 #endif
839
840 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
841 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
842
843 TP_ARGS(q, depth, explicit)
844 #else
845 TP_PROTO(struct request_queue *q),
846
847 TP_ARGS(q)
848 #endif
849 )
850
851 /**
852 * block_split - split a single bio struct into two bio structs
853 * @q: queue containing the bio
854 * @bio: block operation being split
855 * @new_sector: The starting sector for the new bio
856 *
857 * The bio request @bio in request queue @q needs to be split into two
858 * bio requests. The newly created @bio request starts at
859 * @new_sector. This split may be required due to hardware limitation
860 * such as operation crossing device boundaries in a RAID system.
861 */
862 TRACE_EVENT(block_split,
863
864 TP_PROTO(struct request_queue *q, struct bio *bio,
865 unsigned int new_sector),
866
867 TP_ARGS(q, bio, new_sector),
868
869 TP_STRUCT__entry(
870 __field( dev_t, dev )
871 __field( sector_t, sector )
872 __field( sector_t, new_sector )
873 __field( unsigned int, rwbs )
874 __field( pid_t, tid )
875 __array_text( char, comm, TASK_COMM_LEN )
876 ),
877
878 TP_fast_assign(
879 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
880 tp_assign(dev, bio->bi_bdev->bd_dev)
881 tp_assign(sector, bio->bi_iter.bi_sector)
882 tp_assign(new_sector, new_sector)
883 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
884 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
885 tp_assign(tid, current->pid)
886 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
887 tp_assign(dev, bio->bi_bdev->bd_dev)
888 tp_assign(sector, bio->bi_sector)
889 tp_assign(new_sector, new_sector)
890 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
891 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
892 tp_assign(tid, current->pid)
893 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
894 ),
895
896 TP_printk("%d,%d %s %llu / %llu [%s] %d",
897 MAJOR(__entry->dev), MINOR(__entry->dev),
898 __print_rwbs_flags(__entry->rwbs),
899 (unsigned long long)__entry->sector,
900 (unsigned long long)__entry->new_sector,
901 __entry->comm, __entry->tid)
902 )
903
904 /**
905 * block_bio_remap - map request for a logical device to the raw device
906 * @q: queue holding the operation
907 * @bio: revised operation
908 * @dev: device for the operation
909 * @from: original sector for the operation
910 *
911 * An operation for a logical device has been mapped to the
912 * raw block device.
913 */
914 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
915 TRACE_EVENT(block_bio_remap,
916 #else
917 TRACE_EVENT(block_remap,
918 #endif
919
920 TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
921 sector_t from),
922
923 TP_ARGS(q, bio, dev, from),
924
925 TP_STRUCT__entry(
926 __field( dev_t, dev )
927 __field( sector_t, sector )
928 __field( unsigned int, nr_sector )
929 __field( dev_t, old_dev )
930 __field( sector_t, old_sector )
931 __field( unsigned int, rwbs )
932 ),
933
934 TP_fast_assign(
935 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
936 tp_assign(dev, bio->bi_bdev->bd_dev)
937 tp_assign(sector, bio->bi_iter.bi_sector)
938 tp_assign(nr_sector, bio_sectors(bio))
939 tp_assign(old_dev, dev)
940 tp_assign(old_sector, from)
941 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
942 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
943 tp_assign(dev, bio->bi_bdev->bd_dev)
944 tp_assign(sector, bio->bi_sector)
945 tp_assign(nr_sector, bio->bi_size >> 9)
946 tp_assign(old_dev, dev)
947 tp_assign(old_sector, from)
948 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
949 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
950 ),
951
952 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
953 MAJOR(__entry->dev), MINOR(__entry->dev),
954 __print_rwbs_flags(__entry->rwbs),
955 (unsigned long long)__entry->sector,
956 __entry->nr_sector,
957 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
958 (unsigned long long)__entry->old_sector)
959 )
960
961 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
962 /**
963 * block_rq_remap - map request for a block operation request
964 * @q: queue holding the operation
965 * @rq: block IO operation request
966 * @dev: device for the operation
967 * @from: original sector for the operation
968 *
969 * The block operation request @rq in @q has been remapped. The block
970 * operation request @rq holds the current information and @from hold
971 * the original sector.
972 */
973 TRACE_EVENT(block_rq_remap,
974
975 TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
976 sector_t from),
977
978 TP_ARGS(q, rq, dev, from),
979
980 TP_STRUCT__entry(
981 __field( dev_t, dev )
982 __field( sector_t, sector )
983 __field( unsigned int, nr_sector )
984 __field( dev_t, old_dev )
985 __field( sector_t, old_sector )
986 __field( unsigned int, rwbs )
987 ),
988
989 TP_fast_assign(
990 tp_assign(dev, disk_devt(rq->rq_disk))
991 tp_assign(sector, blk_rq_pos(rq))
992 tp_assign(nr_sector, blk_rq_sectors(rq))
993 tp_assign(old_dev, dev)
994 tp_assign(old_sector, from)
995 blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq))
996 ),
997
998 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
999 MAJOR(__entry->dev), MINOR(__entry->dev),
1000 __print_rwbs_flags(__entry->rwbs),
1001 (unsigned long long)__entry->sector,
1002 __entry->nr_sector,
1003 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
1004 (unsigned long long)__entry->old_sector)
1005 )
1006 #endif
1007
1008 #undef __print_rwbs_flags
1009 #undef blk_fill_rwbs
1010
1011 #endif /* _TRACE_BLOCK_H */
1012
1013 /* This part must be outside protection */
1014 #include "../../../probes/define_trace.h"
1015
LTTng 2.0/0.x modules
This page took 0.079011 seconds and 4 git commands to generate.