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Fix: RHEL 7.1 block instrumentation
[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
bba0442a
AB		 224#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,5) \
225 || LTTNG_KERNEL_RANGE(3,12,21, 3,13,0) \
226 || LTTNG_KERNEL_RANGE(3,10,41, 3,11,0) \
cc3b2f06 227 || LTTNG_KERNEL_RANGE(3,4,91, 3,5,0) \
fc6d6f21 228 || LTTNG_KERNEL_RANGE(3,2,58, 3,3,0) \
a3d7e217
MD		 229 || LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,31, 3,14,0,0) \
230 || LTTNG_RHEL_KERNEL_RANGE(3,10,0,7,1, 3,11,0,0,0))
1c53e689
MD		 231
232/**
233 * block_rq_complete - block IO operation completed by device driver
234 * @q: queue containing the block operation request
235 * @rq: block operations request
236 * @nr_bytes: number of completed bytes
237 *
238 * The block_rq_complete tracepoint event indicates that some portion
239 * of operation request has been completed by the device driver. If
240 * the @rq->bio is %NULL, then there is absolutely no additional work to
241 * do for the request. If @rq->bio is non-NULL then there is
242 * additional work required to complete the request.
243 */
244TRACE_EVENT(block_rq_complete,
245
246 TP_PROTO(struct request_queue *q, struct request *rq,
247 unsigned int nr_bytes),
248
249 TP_ARGS(q, rq, nr_bytes),
250
251 TP_STRUCT__entry(
252 __field( dev_t, dev )
253 __field( sector_t, sector )
254 __field( unsigned int, nr_sector )
255 __field( int, errors )
256 __field( unsigned int, rwbs )
257 __dynamic_array_hex( unsigned char, cmd,
258 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
259 rq->cmd_len : 0)
260 ),
261
262 TP_fast_assign(
263 tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0)
264 tp_assign(sector, blk_rq_pos(rq))
265 tp_assign(nr_sector, nr_bytes >> 9)
266 tp_assign(errors, rq->errors)
267 blk_fill_rwbs(rwbs, rq->cmd_flags, nr_bytes)
268 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
269 rq->cmd : NULL)
270 ),
271
272 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
273 MAJOR(__entry->dev), MINOR(__entry->dev),
274 __entry->rwbs, __get_str(cmd),
275 (unsigned long long)__entry->sector,
276 __entry->nr_sector, __entry->errors)
277)
278
279#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
280
f62b389e
MD		 281/**
282 * block_rq_complete - block IO operation completed by device driver
283 * @q: queue containing the block operation request
284 * @rq: block operations request
285 *
286 * The block_rq_complete tracepoint event indicates that some portion
287 * of operation request has been completed by the device driver. If
288 * the @rq->bio is %NULL, then there is absolutely no additional work to
289 * do for the request. If @rq->bio is non-NULL then there is
290 * additional work required to complete the request.
291 */
292DEFINE_EVENT(block_rq_with_error, block_rq_complete,
293
294 TP_PROTO(struct request_queue *q, struct request *rq),
295
296 TP_ARGS(q, rq)
297)
298
1c53e689
MD		 299#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
300
f62b389e
MD		 301DECLARE_EVENT_CLASS(block_rq,
302
303 TP_PROTO(struct request_queue *q, struct request *rq),
304
305 TP_ARGS(q, rq),
306
307 TP_STRUCT__entry(
308 __field( dev_t, dev )
309 __field( sector_t, sector )
310 __field( unsigned int, nr_sector )
311 __field( unsigned int, bytes )
312 __field( unsigned int, rwbs )
542a3926 313 __field( pid_t, tid )
64c796d8 314 __array_text( char, comm, TASK_COMM_LEN )
16830439
MD		 315 __dynamic_array_hex( unsigned char, cmd,
316 (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
317 rq->cmd_len : 0)
f62b389e
MD		 318 ),
319
320 TP_fast_assign(
321 tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0)
322 tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
323 0 : blk_rq_pos(rq))
324 tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
325 0 : blk_rq_sectors(rq))
326 tp_assign(bytes, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
327 blk_rq_bytes(rq) : 0)
328 blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq))
e17d7b27 329 tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
217f66c6 330 rq->cmd : NULL)
f62b389e 331 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 332 tp_assign(tid, current->pid)
f62b389e
MD		 333 ),
334
542a3926 335 TP_printk("%d,%d %s %u (%s) %llu + %u [%s] %d",
f62b389e
MD		 336 MAJOR(__entry->dev), MINOR(__entry->dev),
337 __print_rwbs_flags(__entry->rwbs),
338 __entry->bytes,
339 __blk_dump_cmd(__get_dynamic_array(cmd),
340 __get_dynamic_array_len(cmd)),
341 (unsigned long long)__entry->sector,
542a3926 342 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 343)
344
345/**
346 * block_rq_insert - insert block operation request into queue
347 * @q: target queue
348 * @rq: block IO operation request
349 *
350 * Called immediately before block operation request @rq is inserted
351 * into queue @q. The fields in the operation request @rq struct can
352 * be examined to determine which device and sectors the pending
353 * operation would access.
354 */
355DEFINE_EVENT(block_rq, block_rq_insert,
356
357 TP_PROTO(struct request_queue *q, struct request *rq),
358
359 TP_ARGS(q, rq)
360)
361
362/**
363 * block_rq_issue - issue pending block IO request operation to device driver
364 * @q: queue holding operation
365 * @rq: block IO operation operation request
366 *
367 * Called when block operation request @rq from queue @q is sent to a
368 * device driver for processing.
369 */
370DEFINE_EVENT(block_rq, block_rq_issue,
371
372 TP_PROTO(struct request_queue *q, struct request *rq),
373
374 TP_ARGS(q, rq)
375)
376
377/**
378 * block_bio_bounce - used bounce buffer when processing block operation
379 * @q: queue holding the block operation
380 * @bio: block operation
381 *
382 * A bounce buffer was used to handle the block operation @bio in @q.
383 * This occurs when hardware limitations prevent a direct transfer of
384 * data between the @bio data memory area and the IO device. Use of a
385 * bounce buffer requires extra copying of data and decreases
386 * performance.
387 */
388TRACE_EVENT(block_bio_bounce,
389
390 TP_PROTO(struct request_queue *q, struct bio *bio),
391
392 TP_ARGS(q, bio),
393
394 TP_STRUCT__entry(
395 __field( dev_t, dev )
396 __field( sector_t, sector )
397 __field( unsigned int, nr_sector )
398 __field( unsigned int, rwbs )
542a3926 399 __field( pid_t, tid )
64c796d8 400 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 401 ),
402
403 TP_fast_assign(
54c4c2e3
MD		 404#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
405 tp_assign(dev, bio->bi_bdev ?
406 bio->bi_bdev->bd_dev : 0)
407 tp_assign(sector, bio->bi_iter.bi_sector)
408 tp_assign(nr_sector, bio_sectors(bio))
409 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
410 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 411 tp_assign(tid, current->pid)
54c4c2e3 412#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 413 tp_assign(dev, bio->bi_bdev ?
414 bio->bi_bdev->bd_dev : 0)
415 tp_assign(sector, bio->bi_sector)
416 tp_assign(nr_sector, bio->bi_size >> 9)
417 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
418 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 419 tp_assign(tid, current->pid)
54c4c2e3 420#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 421 ),
422
542a3926 423 TP_printk("%d,%d %s %llu + %u [%s] %d",
f62b389e
MD		 424 MAJOR(__entry->dev), MINOR(__entry->dev),
425 __print_rwbs_flags(__entry->rwbs),
426 (unsigned long long)__entry->sector,
542a3926 427 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 428)
429
430/**
431 * block_bio_complete - completed all work on the block operation
432 * @q: queue holding the block operation
433 * @bio: block operation completed
434 * @error: io error value
435 *
436 * This tracepoint indicates there is no further work to do on this
437 * block IO operation @bio.
438 */
439TRACE_EVENT(block_bio_complete,
440
1bc491fc 441#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
f62b389e
MD		 442 TP_PROTO(struct request_queue *q, struct bio *bio, int error),
443
444 TP_ARGS(q, bio, error),
7c68b363
AG		 445#else
446 TP_PROTO(struct request_queue *q, struct bio *bio),
447
448 TP_ARGS(q, bio),
449#endif
f62b389e
MD		 450
451 TP_STRUCT__entry(
452 __field( dev_t, dev )
453 __field( sector_t, sector )
454 __field( unsigned, nr_sector )
455 __field( int, error )
456 __field( unsigned int, rwbs )
457 ),
458
459 TP_fast_assign(
54c4c2e3
MD		 460#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
461 tp_assign(dev, bio->bi_bdev->bd_dev)
462 tp_assign(sector, bio->bi_iter.bi_sector)
463 tp_assign(nr_sector, bio_sectors(bio))
464 tp_assign(error, error)
465 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
466#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 467 tp_assign(dev, bio->bi_bdev->bd_dev)
468 tp_assign(sector, bio->bi_sector)
469 tp_assign(nr_sector, bio->bi_size >> 9)
7c68b363 470#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
f62b389e 471 tp_assign(error, error)
7c68b363
AG		 472#else
473 tp_assign(error, 0)
474#endif
f62b389e 475 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
54c4c2e3 476#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 477 ),
478
479 TP_printk("%d,%d %s %llu + %u [%d]",
480 MAJOR(__entry->dev), MINOR(__entry->dev),
481 __print_rwbs_flags(__entry->rwbs),
482 (unsigned long long)__entry->sector,
483 __entry->nr_sector, __entry->error)
484)
485
217f66c6
MD		 486#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
487DECLARE_EVENT_CLASS(block_bio_merge,
488
489 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
490
491 TP_ARGS(q, rq, bio),
492
493 TP_STRUCT__entry(
494 __field( dev_t, dev )
495 __field( sector_t, sector )
496 __field( unsigned int, nr_sector )
497 __field( unsigned int, rwbs )
542a3926 498 __field( pid_t, tid )
217f66c6
MD		 499 __array_text( char, comm, TASK_COMM_LEN )
500 ),
501
502 TP_fast_assign(
54c4c2e3
MD		 503#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
504 tp_assign(dev, bio->bi_bdev->bd_dev)
505 tp_assign(sector, bio->bi_iter.bi_sector)
506 tp_assign(nr_sector, bio_sectors(bio))
507 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
508 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 509 tp_assign(tid, current->pid)
54c4c2e3 510#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 511 tp_assign(dev, bio->bi_bdev->bd_dev)
512 tp_assign(sector, bio->bi_sector)
513 tp_assign(nr_sector, bio->bi_size >> 9)
514 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
515 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 516 tp_assign(tid, current->pid)
54c4c2e3 517#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 518 ),
519
542a3926 520 TP_printk("%d,%d %s %llu + %u [%s] %d",
217f66c6
MD		 521 MAJOR(__entry->dev), MINOR(__entry->dev),
522 __print_rwbs_flags(__entry->rwbs),
523 (unsigned long long)__entry->sector,
542a3926 524 __entry->nr_sector, __entry->comm, __entry->tid)
217f66c6
MD		 525)
526
527/**
528 * block_bio_backmerge - merging block operation to the end of an existing operation
529 * @q: queue holding operation
530 * @bio: new block operation to merge
531 *
532 * Merging block request @bio to the end of an existing block request
533 * in queue @q.
534 */
535DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
536
537 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
538
539 TP_ARGS(q, rq, bio)
540)
541
542/**
543 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
544 * @q: queue holding operation
545 * @bio: new block operation to merge
546 *
547 * Merging block IO operation @bio to the beginning of an existing block
548 * operation in queue @q.
549 */
550DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
551
552 TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
553
554 TP_ARGS(q, rq, bio)
555)
556
557/**
558 * block_bio_queue - putting new block IO operation in queue
559 * @q: queue holding operation
560 * @bio: new block operation
561 *
562 * About to place the block IO operation @bio into queue @q.
563 */
564TRACE_EVENT(block_bio_queue,
565
566 TP_PROTO(struct request_queue *q, struct bio *bio),
567
568 TP_ARGS(q, bio),
569
570 TP_STRUCT__entry(
571 __field( dev_t, dev )
572 __field( sector_t, sector )
573 __field( unsigned int, nr_sector )
1d8ee641 574 __field( unsigned int, rwbs )
542a3926 575 __field( pid_t, tid )
1d8ee641 576 __array_text( char, comm, TASK_COMM_LEN )
217f66c6
MD		 577 ),
578
579 TP_fast_assign(
54c4c2e3
MD		 580#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
581 tp_assign(dev, bio->bi_bdev->bd_dev)
582 tp_assign(sector, bio->bi_iter.bi_sector)
583 tp_assign(nr_sector, bio_sectors(bio))
584 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
585 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 586 tp_assign(tid, current->pid)
54c4c2e3 587#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 588 tp_assign(dev, bio->bi_bdev->bd_dev)
589 tp_assign(sector, bio->bi_sector)
590 tp_assign(nr_sector, bio->bi_size >> 9)
591 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
592 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 593 tp_assign(tid, current->pid)
54c4c2e3 594#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
217f66c6
MD		 595 ),
596
542a3926 597 TP_printk("%d,%d %s %llu + %u [%s] %d",
217f66c6
MD		 598 MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
599 (unsigned long long)__entry->sector,
542a3926 600 __entry->nr_sector, __entry->comm, __entry->tid)
217f66c6
MD		 601)
602#else
f62b389e
MD		 603DECLARE_EVENT_CLASS(block_bio,
604
605 TP_PROTO(struct request_queue *q, struct bio *bio),
606
607 TP_ARGS(q, bio),
608
609 TP_STRUCT__entry(
610 __field( dev_t, dev )
611 __field( sector_t, sector )
612 __field( unsigned int, nr_sector )
613 __field( unsigned int, rwbs )
542a3926 614 __field( pid_t, tid )
64c796d8 615 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 616 ),
617
618 TP_fast_assign(
058e913a 619 tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0)
f62b389e
MD		 620 tp_assign(sector, bio->bi_sector)
621 tp_assign(nr_sector, bio->bi_size >> 9)
622 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
623 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 624 tp_assign(tid, current->pid)
f62b389e
MD		 625 ),
626
542a3926 627 TP_printk("%d,%d %s %llu + %u [%s] %d",
f62b389e
MD		 628 MAJOR(__entry->dev), MINOR(__entry->dev),
629 __print_rwbs_flags(__entry->rwbs),
630 (unsigned long long)__entry->sector,
542a3926 631 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 632)
633
634/**
635 * block_bio_backmerge - merging block operation to the end of an existing operation
636 * @q: queue holding operation
637 * @bio: new block operation to merge
638 *
639 * Merging block request @bio to the end of an existing block request
640 * in queue @q.
641 */
642DEFINE_EVENT(block_bio, block_bio_backmerge,
643
644 TP_PROTO(struct request_queue *q, struct bio *bio),
645
646 TP_ARGS(q, bio)
647)
648
649/**
650 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
651 * @q: queue holding operation
652 * @bio: new block operation to merge
653 *
654 * Merging block IO operation @bio to the beginning of an existing block
655 * operation in queue @q.
656 */
657DEFINE_EVENT(block_bio, block_bio_frontmerge,
658
659 TP_PROTO(struct request_queue *q, struct bio *bio),
660
661 TP_ARGS(q, bio)
662)
663
664/**
665 * block_bio_queue - putting new block IO operation in queue
666 * @q: queue holding operation
667 * @bio: new block operation
668 *
669 * About to place the block IO operation @bio into queue @q.
670 */
671DEFINE_EVENT(block_bio, block_bio_queue,
672
673 TP_PROTO(struct request_queue *q, struct bio *bio),
674
675 TP_ARGS(q, bio)
676)
217f66c6 677#endif
f62b389e
MD		 678
679DECLARE_EVENT_CLASS(block_get_rq,
680
681 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
682
683 TP_ARGS(q, bio, rw),
684
685 TP_STRUCT__entry(
686 __field( dev_t, dev )
687 __field( sector_t, sector )
688 __field( unsigned int, nr_sector )
689 __field( unsigned int, rwbs )
542a3926 690 __field( pid_t, tid )
64c796d8 691 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 692 ),
693
694 TP_fast_assign(
54c4c2e3
MD		 695#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
696 tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0)
697 tp_assign(sector, bio ? bio->bi_iter.bi_sector : 0)
698 tp_assign(nr_sector, bio ? bio_sectors(bio) : 0)
699 blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0,
700 bio ? bio_sectors(bio) : 0)
701 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 702 tp_assign(tid, current->pid)
54c4c2e3 703#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 704 tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0)
705 tp_assign(sector, bio ? bio->bi_sector : 0)
706 tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0)
707 blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0,
708 bio ? bio->bi_size >> 9 : 0)
709 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 710 tp_assign(tid, current->pid)
54c4c2e3 711#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 712 ),
713
542a3926 714 TP_printk("%d,%d %s %llu + %u [%s] %d",
f62b389e
MD		 715 MAJOR(__entry->dev), MINOR(__entry->dev),
716 __print_rwbs_flags(__entry->rwbs),
717 (unsigned long long)__entry->sector,
542a3926 718 __entry->nr_sector, __entry->comm, __entry->tid)
f62b389e
MD		 719)
720
721/**
722 * block_getrq - get a free request entry in queue for block IO operations
723 * @q: queue for operations
724 * @bio: pending block IO operation
725 * @rw: low bit indicates a read (%0) or a write (%1)
726 *
727 * A request struct for queue @q has been allocated to handle the
728 * block IO operation @bio.
729 */
730DEFINE_EVENT(block_get_rq, block_getrq,
731
732 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
733
734 TP_ARGS(q, bio, rw)
735)
736
737/**
738 * block_sleeprq - waiting to get a free request entry in queue for block IO operation
739 * @q: queue for operation
740 * @bio: pending block IO operation
741 * @rw: low bit indicates a read (%0) or a write (%1)
742 *
743 * In the case where a request struct cannot be provided for queue @q
744 * the process needs to wait for an request struct to become
745 * available. This tracepoint event is generated each time the
746 * process goes to sleep waiting for request struct become available.
747 */
748DEFINE_EVENT(block_get_rq, block_sleeprq,
749
750 TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
751
752 TP_ARGS(q, bio, rw)
753)
754
755/**
756 * block_plug - keep operations requests in request queue
757 * @q: request queue to plug
758 *
759 * Plug the request queue @q. Do not allow block operation requests
760 * to be sent to the device driver. Instead, accumulate requests in
761 * the queue to improve throughput performance of the block device.
762 */
763TRACE_EVENT(block_plug,
764
765 TP_PROTO(struct request_queue *q),
766
767 TP_ARGS(q),
768
769 TP_STRUCT__entry(
542a3926 770 __field( pid_t, tid )
64c796d8 771 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 772 ),
773
774 TP_fast_assign(
775 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 776 tp_assign(tid, current->pid)
f62b389e
MD		 777 ),
778
542a3926 779 TP_printk("[%s] %d", __entry->comm, __entry->tid)
f62b389e
MD		 780)
781
782DECLARE_EVENT_CLASS(block_unplug,
783
7c68b363 784#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e
MD		 785 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
786
787 TP_ARGS(q, depth, explicit),
7c68b363
AG		 788#else
789 TP_PROTO(struct request_queue *q),
790
791 TP_ARGS(q),
792#endif
f62b389e
MD		 793
794 TP_STRUCT__entry(
795 __field( int, nr_rq )
542a3926 796 __field( pid_t, tid )
64c796d8 797 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 798 ),
799
800 TP_fast_assign(
7c68b363 801#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e 802 tp_assign(nr_rq, depth)
7c68b363
AG		 803#else
804 tp_assign(nr_rq, q->rq.count[READ] + q->rq.count[WRITE])
805#endif
f62b389e 806 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 807 tp_assign(tid, current->pid)
f62b389e
MD		 808 ),
809
542a3926
JD		 810 TP_printk("[%s] %d %d", __entry->comm, , __entry->tid,
811 __entry->nr_rq)
f62b389e
MD		 812)
813
7c68b363
AG		 814#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
815/**
816 * block_unplug_timer - timed release of operations requests in queue to device driver
817 * @q: request queue to unplug
818 *
819 * Unplug the request queue @q because a timer expired and allow block
820 * operation requests to be sent to the device driver.
821 */
822DEFINE_EVENT(block_unplug, block_unplug_timer,
823
824 TP_PROTO(struct request_queue *q),
825
826 TP_ARGS(q)
827)
828#endif
829
f62b389e
MD		 830/**
831 * block_unplug - release of operations requests in request queue
832 * @q: request queue to unplug
833 * @depth: number of requests just added to the queue
834 * @explicit: whether this was an explicit unplug, or one from schedule()
835 *
836 * Unplug request queue @q because device driver is scheduled to work
837 * on elements in the request queue.
838 */
7c68b363 839#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e 840DEFINE_EVENT(block_unplug, block_unplug,
7c68b363
AG		 841#else
842DEFINE_EVENT(block_unplug, block_unplug_io,
843#endif
f62b389e 844
7c68b363 845#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
f62b389e
MD		 846 TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
847
848 TP_ARGS(q, depth, explicit)
7c68b363
AG		 849#else
850 TP_PROTO(struct request_queue *q),
851
852 TP_ARGS(q)
853#endif
f62b389e
MD		 854)
855
856/**
857 * block_split - split a single bio struct into two bio structs
858 * @q: queue containing the bio
859 * @bio: block operation being split
860 * @new_sector: The starting sector for the new bio
861 *
862 * The bio request @bio in request queue @q needs to be split into two
863 * bio requests. The newly created @bio request starts at
864 * @new_sector. This split may be required due to hardware limitation
865 * such as operation crossing device boundaries in a RAID system.
866 */
867TRACE_EVENT(block_split,
868
869 TP_PROTO(struct request_queue *q, struct bio *bio,
870 unsigned int new_sector),
871
872 TP_ARGS(q, bio, new_sector),
873
874 TP_STRUCT__entry(
875 __field( dev_t, dev )
876 __field( sector_t, sector )
877 __field( sector_t, new_sector )
878 __field( unsigned int, rwbs )
542a3926 879 __field( pid_t, tid )
64c796d8 880 __array_text( char, comm, TASK_COMM_LEN )
f62b389e
MD		 881 ),
882
883 TP_fast_assign(
54c4c2e3
MD		 884#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
885 tp_assign(dev, bio->bi_bdev->bd_dev)
886 tp_assign(sector, bio->bi_iter.bi_sector)
887 tp_assign(new_sector, new_sector)
888 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
889 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 890 tp_assign(tid, current->pid)
54c4c2e3 891#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 892 tp_assign(dev, bio->bi_bdev->bd_dev)
893 tp_assign(sector, bio->bi_sector)
894 tp_assign(new_sector, new_sector)
08fa6ec9 895 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
f62b389e 896 tp_memcpy(comm, current->comm, TASK_COMM_LEN)
542a3926 897 tp_assign(tid, current->pid)
54c4c2e3 898#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 899 ),
900
542a3926 901 TP_printk("%d,%d %s %llu / %llu [%s] %d",
f62b389e
MD		 902 MAJOR(__entry->dev), MINOR(__entry->dev),
903 __print_rwbs_flags(__entry->rwbs),
904 (unsigned long long)__entry->sector,
905 (unsigned long long)__entry->new_sector,
542a3926 906 __entry->comm, __entry->tid)
f62b389e
MD		 907)
908
909/**
910 * block_bio_remap - map request for a logical device to the raw device
911 * @q: queue holding the operation
912 * @bio: revised operation
913 * @dev: device for the operation
914 * @from: original sector for the operation
915 *
916 * An operation for a logical device has been mapped to the
917 * raw block device.
918 */
7c68b363 919#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
f62b389e 920TRACE_EVENT(block_bio_remap,
7c68b363
AG		 921#else
922TRACE_EVENT(block_remap,
923#endif
f62b389e
MD		 924
925 TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
926 sector_t from),
927
928 TP_ARGS(q, bio, dev, from),
929
930 TP_STRUCT__entry(
931 __field( dev_t, dev )
932 __field( sector_t, sector )
933 __field( unsigned int, nr_sector )
934 __field( dev_t, old_dev )
935 __field( sector_t, old_sector )
936 __field( unsigned int, rwbs )
937 ),
938
939 TP_fast_assign(
54c4c2e3
MD		 940#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
941 tp_assign(dev, bio->bi_bdev->bd_dev)
942 tp_assign(sector, bio->bi_iter.bi_sector)
943 tp_assign(nr_sector, bio_sectors(bio))
944 tp_assign(old_dev, dev)
945 tp_assign(old_sector, from)
946 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size)
947#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 948 tp_assign(dev, bio->bi_bdev->bd_dev)
949 tp_assign(sector, bio->bi_sector)
950 tp_assign(nr_sector, bio->bi_size >> 9)
951 tp_assign(old_dev, dev)
952 tp_assign(old_sector, from)
953 blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size)
54c4c2e3 954#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
f62b389e
MD		 955 ),
956
957 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
958 MAJOR(__entry->dev), MINOR(__entry->dev),
959 __print_rwbs_flags(__entry->rwbs),
960 (unsigned long long)__entry->sector,
961 __entry->nr_sector,
962 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
963 (unsigned long long)__entry->old_sector)
964)
965
7c68b363 966#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
f62b389e
MD		 967/**
968 * block_rq_remap - map request for a block operation request
969 * @q: queue holding the operation
970 * @rq: block IO operation request
971 * @dev: device for the operation
972 * @from: original sector for the operation
973 *
974 * The block operation request @rq in @q has been remapped. The block
975 * operation request @rq holds the current information and @from hold
976 * the original sector.
977 */
978TRACE_EVENT(block_rq_remap,
979
980 TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
981 sector_t from),
982
983 TP_ARGS(q, rq, dev, from),
984
985 TP_STRUCT__entry(
986 __field( dev_t, dev )
987 __field( sector_t, sector )
988 __field( unsigned int, nr_sector )
989 __field( dev_t, old_dev )
990 __field( sector_t, old_sector )
991 __field( unsigned int, rwbs )
992 ),
993
994 TP_fast_assign(
995 tp_assign(dev, disk_devt(rq->rq_disk))
996 tp_assign(sector, blk_rq_pos(rq))
997 tp_assign(nr_sector, blk_rq_sectors(rq))
998 tp_assign(old_dev, dev)
999 tp_assign(old_sector, from)
1000 blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq))
1001 ),
1002
1003 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
1004 MAJOR(__entry->dev), MINOR(__entry->dev),
1005 __print_rwbs_flags(__entry->rwbs),
1006 (unsigned long long)__entry->sector,
1007 __entry->nr_sector,
1008 MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
1009 (unsigned long long)__entry->old_sector)
1010)
7c68b363 1011#endif
f62b389e
MD		 1012
1013#undef __print_rwbs_flags
1014#undef blk_fill_rwbs
1015
1016#endif /* _TRACE_BLOCK_H */
1017
1018/* This part must be outside protection */
5b88d86e 1019#include "../../../probes/define_trace.h"
f62b389e 1020
LTTng 2.0/0.x modules
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