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Add TID field to some block_* events
[lttng-modules.git] / instrumentation / events / lttng-module / block.h
CommitLineData
f62b389e
MD		 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>
7c68b363
AG		 11#include <linux/version.h>
12
13#define RWBS_LEN 8
f62b389e
MD		 14
15#ifndef _TRACE_BLOCK_DEF_
16#define _TRACE_BLOCK_DEF_
17
18#define __blk_dump_cmd(cmd, len) "<unknown>"
19
20enum {
21 RWBS_FLAG_WRITE = (1 << 0),
22 RWBS_FLAG_DISCARD = (1 << 1),
23 RWBS_FLAG_READ = (1 << 2),
24 RWBS_FLAG_RAHEAD = (1 << 3),
7c68b363
AG		 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),
f62b389e
MD		 31};
32
33#endif /* _TRACE_BLOCK_DEF_ */
34
35#define __print_rwbs_flags(rwbs) \
36 __print_flags(rwbs, "", \
7c68b363 37 { RWBS_FLAG_FLUSH, "F" }, \
f62b389e
MD		 38 { RWBS_FLAG_WRITE, "W" }, \
39 { RWBS_FLAG_DISCARD, "D" }, \
40 { RWBS_FLAG_READ, "R" }, \
7c68b363 41 { RWBS_FLAG_FUA, "F" }, \
f62b389e 42 { RWBS_FLAG_RAHEAD, "A" }, \
7c68b363 43 { RWBS_FLAG_BARRIER, "B" }, \
f62b389e
MD		 44 { RWBS_FLAG_SYNC, "S" }, \
45 { RWBS_FLAG_META, "M" }, \
46 { RWBS_FLAG_SECURE, "E" })
47
7c68b363
AG		 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
f62b389e
MD		 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
7c68b363
AG		 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
217f66c6
MD		 101#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
102DECLARE_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 */
132DEFINE_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 */
145DEFINE_EVENT(block_buffer, block_dirty_buffer,
146
147 TP_PROTO(struct buffer_head *bh),
148
149 TP_ARGS(bh)
150)
151#endif
152
f62b389e
MD		 153DECLARE_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 )
16830439
MD		 165 __dynamic_array_hex( unsigned char, cmd,
166 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
167 rq->cmd_len : 0)
f62b389e
MD		 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))
e17d7b27 178 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
217f66c6 179 rq->cmd : NULL)
f62b389e
MD		 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 */
201DEFINE_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 */
217DEFINE_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
cf0b6162
MD		 224#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0) \
225 || LTTNG_KERNEL_RANGE(3,2,58, 3,3,0))
1c53e689
MD		 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 */
239TRACE_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
f62b389e
MD		 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 */
287DEFINE_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
1c53e689
MD		 294#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
295
f62b389e
MD		 296DECLARE_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 )
542a3926 308 __field( pid_t, tid )
64c796d8 309 __array_text( char, comm, TASK_COMM_LEN )
16830439
MD		 310 __dynamic_array_hex( unsigned char, cmd,
311 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
312 rq->cmd_len : 0)
f62b389e
MD		 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))
e17d7b27 324 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
217f66c6 325 rq->cmd : NULL)
f62b389e 326 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 327 tp_assign(tid, current->pid)
f62b389e
MD		 328 ),
329
542a3926 330 TP_printk("%d,%d %s %u (%s) %llu + %u [%s] %d",
f62b389e
MD		 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,
542a3926 337 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 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 */
350DEFINE_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 */
365DEFINE_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 */
383TRACE_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 )
542a3926 394 __field( pid_t, tid )
64c796d8 395 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 396 ),
397
398 TP_fast_assign(
54c4c2e3
MD		 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)
542a3926 406 tp_assign(tid, current->pid)
54c4c2e3 407#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 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)
542a3926 414 tp_assign(tid, current->pid)
54c4c2e3 415#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 416 ),
417
542a3926 418 TP_printk("%d,%d %s %llu + %u [%s] %d",
f62b389e
MD		 419 MAJOR(__entry->dev), MINOR(__entry->dev),
420 __print_rwbs_flags(__entry->rwbs),
421 (unsigned long long)__entry->sector,
542a3926 422 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 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 */
434TRACE_EVENT(block_bio_complete,
435
1bc491fc 436#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
f62b389e
MD		 437 TP_PROTO(struct request_queue *q, struct bio *bio, int error),
438
439 TP_ARGS(q, bio, error),
7c68b363
AG		 440#else
441 TP_PROTO(struct request_queue *q, struct bio *bio),
442
443 TP_ARGS(q, bio),
444#endif
f62b389e
MD		 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(
54c4c2e3
MD		 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)) */
f62b389e
MD		 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)
7c68b363 465#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
f62b389e 466 tp_assign(error, error)
7c68b363
AG		 467#else
468 tp_assign(error, 0)
469#endif
f62b389e 470 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
54c4c2e3 471#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 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
217f66c6
MD		 481#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
482DECLARE_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 )
542a3926 493 __field( pid_t, tid )
217f66c6
MD		 494 __array_text( char, comm, TASK_COMM_LEN )
495 ),
496
497 TP_fast_assign(
54c4c2e3
MD		 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)
542a3926 504 tp_assign(tid, current->pid)
54c4c2e3 505#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 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)
542a3926 511 tp_assign(tid, current->pid)
54c4c2e3 512#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 513 ),
514
542a3926 515 TP_printk("%d,%d %s %llu + %u [%s] %d",
217f66c6
MD		 516 MAJOR(__entry->dev), MINOR(__entry->dev),
517 __print_rwbs_flags(__entry->rwbs),
518 (unsigned long long)__entry->sector,
542a3926 519 __entry->nr_sector, __entry->comm, __entry->tid)
217f66c6
MD		 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 */
530DEFINE_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 */
545DEFINE_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 */
559TRACE_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 )
1d8ee641 569 __field( unsigned int, rwbs )
542a3926 570 __field( pid_t, tid )
1d8ee641 571 __array_text( char, comm, TASK_COMM_LEN )
217f66c6
MD		 572 ),
573
574 TP_fast_assign(
54c4c2e3
MD		 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)
542a3926 581 tp_assign(tid, current->pid)
54c4c2e3 582#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 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)
542a3926 588 tp_assign(tid, current->pid)
54c4c2e3 589#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 590 ),
591
542a3926 592 TP_printk("%d,%d %s %llu + %u [%s] %d",
217f66c6
MD		 593 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
594 (unsigned long long)__entry->sector,
542a3926 595 __entry->nr_sector, __entry->comm, __entry->tid)
217f66c6
MD		 596)
597#else
f62b389e
MD		 598DECLARE_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 )
542a3926 609 __field( pid_t, tid )
64c796d8 610 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 611 ),
612
613 TP_fast_assign(
058e913a 614 tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0)
f62b389e
MD		 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)
542a3926 619 tp_assign(tid, current->pid)
f62b389e
MD		 620 ),
621
542a3926 622 TP_printk("%d,%d %s %llu + %u [%s] %d",
f62b389e
MD		 623 MAJOR(__entry->dev), MINOR(__entry->dev),
624 __print_rwbs_flags(__entry->rwbs),
625 (unsigned long long)__entry->sector,
542a3926 626 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 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 */
637DEFINE_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 */
652DEFINE_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 */
666DEFINE_EVENT(block_bio, block_bio_queue,
667
668 TP_PROTO(struct request_queue *q, struct bio *bio),
669
670 TP_ARGS(q, bio)
671)
217f66c6 672#endif
f62b389e
MD		 673
674DECLARE_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 )
542a3926 685 __field( pid_t, tid )
64c796d8 686 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 687 ),
688
689 TP_fast_assign(
54c4c2e3
MD		 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)
542a3926 697 tp_assign(tid, current->pid)
54c4c2e3 698#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 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)
542a3926 705 tp_assign(tid, current->pid)
54c4c2e3 706#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 707 ),
708
542a3926 709 TP_printk("%d,%d %s %llu + %u [%s] %d",
f62b389e
MD		 710 MAJOR(__entry->dev), MINOR(__entry->dev),
711 __print_rwbs_flags(__entry->rwbs),
712 (unsigned long long)__entry->sector,
542a3926 713 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 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 */
725DEFINE_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 */
743DEFINE_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 */
758TRACE_EVENT(block_plug,
759
760 TP_PROTO(struct request_queue *q),
761
762 TP_ARGS(q),
763
764 TP_STRUCT__entry(
542a3926 765 __field( pid_t, tid )
64c796d8 766 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 767 ),
768
769 TP_fast_assign(
770 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 771 tp_assign(tid, current->pid)
f62b389e
MD		 772 ),
773
542a3926 774 TP_printk("[%s] %d", __entry->comm, __entry->tid)
f62b389e
MD		 775)
776
777DECLARE_EVENT_CLASS(block_unplug,
778
7c68b363 779#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e
MD		 780 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
781
782 TP_ARGS(q, depth, explicit),
7c68b363
AG		 783#else
784 TP_PROTO(struct request_queue *q),
785
786 TP_ARGS(q),
787#endif
f62b389e
MD		 788
789 TP_STRUCT__entry(
790 __field( int, nr_rq )
542a3926 791 __field( pid_t, tid )
64c796d8 792 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 793 ),
794
795 TP_fast_assign(
7c68b363 796#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e 797 tp_assign(nr_rq, depth)
7c68b363
AG		 798#else
799 tp_assign(nr_rq, q->rq.count[READ] + q->rq.count[WRITE])
800#endif
f62b389e 801 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 802 tp_assign(tid, current->pid)
f62b389e
MD		 803 ),
804
542a3926
JD		 805 TP_printk("[%s] %d %d", __entry->comm, , __entry->tid,
806 __entry->nr_rq)
f62b389e
MD		 807)
808
7c68b363
AG		 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 */
817DEFINE_EVENT(block_unplug, block_unplug_timer,
818
819 TP_PROTO(struct request_queue *q),
820
821 TP_ARGS(q)
822)
823#endif
824
f62b389e
MD		 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 */
7c68b363 834#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e 835DEFINE_EVENT(block_unplug, block_unplug,
7c68b363
AG		 836#else
837DEFINE_EVENT(block_unplug, block_unplug_io,
838#endif
f62b389e 839
7c68b363 840#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e
MD		 841 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
842
843 TP_ARGS(q, depth, explicit)
7c68b363
AG		 844#else
845 TP_PROTO(struct request_queue *q),
846
847 TP_ARGS(q)
848#endif
f62b389e
MD		 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 */
862TRACE_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 )
542a3926 874 __field( pid_t, tid )
64c796d8 875 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 876 ),
877
878 TP_fast_assign(
54c4c2e3
MD		 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)
542a3926 885 tp_assign(tid, current->pid)
54c4c2e3 886#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 887 tp_assign(dev, bio->bi_bdev->bd_dev)
888 tp_assign(sector, bio->bi_sector)
889 tp_assign(new_sector, new_sector)
08fa6ec9 890 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
f62b389e 891 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 892 tp_assign(tid, current->pid)
54c4c2e3 893#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 894 ),
895
542a3926 896 TP_printk("%d,%d %s %llu / %llu [%s] %d",
f62b389e
MD		 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,
542a3926 901 __entry->comm, __entry->tid)
f62b389e
MD		 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 */
7c68b363 914#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
f62b389e 915TRACE_EVENT(block_bio_remap,
7c68b363
AG		 916#else
917TRACE_EVENT(block_remap,
918#endif
f62b389e
MD		 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(
54c4c2e3
MD		 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)) */
f62b389e
MD		 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)
54c4c2e3 949#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 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
7c68b363 961#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
f62b389e
MD		 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 */
973TRACE_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)
7c68b363 1006#endif
f62b389e
MD		 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 */
5b88d86e 1014#include "../../../probes/define_trace.h"
f62b389e 1015
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