2 #define TRACE_SYSTEM block
4 #if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
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>
15 #ifndef _TRACE_BLOCK_DEF_
16 #define _TRACE_BLOCK_DEF_
18 #define __blk_dump_cmd(cmd, len) "<unknown>"
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),
33 #endif /* _TRACE_BLOCK_DEF_ */
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" })
48 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
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 : \
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))
62 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
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 : \
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))
74 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
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 : \
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))
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 : \
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))
101 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
102 DECLARE_EVENT_CLASS(block_buffer
,
104 TP_PROTO(struct buffer_head
*bh
),
109 __field( dev_t
, dev
)
110 __field( sector_t
, sector
)
111 __field( size_t, size
)
115 tp_assign(dev
, bh
->b_bdev
->bd_dev
)
116 tp_assign(sector
, bh
->b_blocknr
)
117 tp_assign(size
, bh
->b_size
)
120 TP_printk("%d,%d sector=%llu size=%zu",
121 MAJOR(__entry
->dev
), MINOR(__entry
->dev
),
122 (unsigned long long)__entry
->sector
, __entry
->size
127 * block_touch_buffer - mark a buffer accessed
128 * @bh: buffer_head being touched
130 * Called from touch_buffer().
132 DEFINE_EVENT(block_buffer
, block_touch_buffer
,
134 TP_PROTO(struct buffer_head
*bh
),
140 * block_dirty_buffer - mark a buffer dirty
141 * @bh: buffer_head being dirtied
143 * Called from mark_buffer_dirty().
145 DEFINE_EVENT(block_buffer
, block_dirty_buffer
,
147 TP_PROTO(struct buffer_head
*bh
),
153 DECLARE_EVENT_CLASS(block_rq_with_error
,
155 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
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
) ?
171 tp_assign(dev
, rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0)
172 tp_assign(sector
, (rq
->cmd_type
== REQ_TYPE_BLOCK_PC
) ?
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
) ?
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
)
192 * block_rq_abort - abort block operation request
193 * @q: queue containing the block operation request
194 * @rq: block IO operation request
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.
201 DEFINE_EVENT(block_rq_with_error
, block_rq_abort
,
203 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
209 * block_rq_requeue - place block IO request back on a queue
210 * @q: queue holding operation
211 * @rq: block IO operation request
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.
217 DEFINE_EVENT(block_rq_with_error
, block_rq_requeue
,
219 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
224 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0) \
225 || LTTNG_KERNEL_RANGE(3,2,58, 3,3,0))
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
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.
239 TRACE_EVENT(block_rq_complete
,
241 TP_PROTO(struct request_queue
*q
, struct request
*rq
,
242 unsigned int nr_bytes
),
244 TP_ARGS(q
, rq
, nr_bytes
),
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
) ?
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
) ?
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
)
274 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
277 * block_rq_complete - block IO operation completed by device driver
278 * @q: queue containing the block operation request
279 * @rq: block operations request
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.
287 DEFINE_EVENT(block_rq_with_error
, block_rq_complete
,
289 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
294 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
296 DECLARE_EVENT_CLASS(block_rq
,
298 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
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
) ?
316 tp_assign(dev
, rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0)
317 tp_assign(sector
, (rq
->cmd_type
== REQ_TYPE_BLOCK_PC
) ?
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
) ?
326 tp_memcpy(comm
, current
->comm
, TASK_COMM_LEN
)
327 tp_assign(tid
, current
->pid
)
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
),
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
)
341 * block_rq_insert - insert block operation request into queue
343 * @rq: block IO operation request
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.
350 DEFINE_EVENT(block_rq
, block_rq_insert
,
352 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
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
362 * Called when block operation request @rq from queue @q is sent to a
363 * device driver for processing.
365 DEFINE_EVENT(block_rq
, block_rq_issue
,
367 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
373 * block_bio_bounce - used bounce buffer when processing block operation
374 * @q: queue holding the block operation
375 * @bio: block operation
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
383 TRACE_EVENT(block_bio_bounce
,
385 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
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
)
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)) */
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
)
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
431 * This tracepoint indicates there is no further work to do on this
432 * block IO operation @bio.
434 TRACE_EVENT(block_bio_complete
,
436 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
437 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int error
),
439 TP_ARGS(q
, bio
, error
),
441 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
447 __field( dev_t
, dev
)
448 __field( sector_t
, sector
)
449 __field( unsigned, nr_sector
)
450 __field( int, error
)
451 __field( unsigned int, rwbs
)
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
)
470 blk_fill_rwbs(rwbs
, bio
->bi_rw
, bio
->bi_size
)
471 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
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
)
481 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
482 DECLARE_EVENT_CLASS(block_bio_merge
,
484 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
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
)
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)) */
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
)
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
527 * Merging block request @bio to the end of an existing block request
530 DEFINE_EVENT(block_bio_merge
, block_bio_backmerge
,
532 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
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
542 * Merging block IO operation @bio to the beginning of an existing block
543 * operation in queue @q.
545 DEFINE_EVENT(block_bio_merge
, block_bio_frontmerge
,
547 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
553 * block_bio_queue - putting new block IO operation in queue
554 * @q: queue holding operation
555 * @bio: new block operation
557 * About to place the block IO operation @bio into queue @q.
559 TRACE_EVENT(block_bio_queue
,
561 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
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
)
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)) */
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
)
598 DECLARE_EVENT_CLASS(block_bio
,
600 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
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
)
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
)
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
)
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
634 * Merging block request @bio to the end of an existing block request
637 DEFINE_EVENT(block_bio
, block_bio_backmerge
,
639 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
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
649 * Merging block IO operation @bio to the beginning of an existing block
650 * operation in queue @q.
652 DEFINE_EVENT(block_bio
, block_bio_frontmerge
,
654 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
660 * block_bio_queue - putting new block IO operation in queue
661 * @q: queue holding operation
662 * @bio: new block operation
664 * About to place the block IO operation @bio into queue @q.
666 DEFINE_EVENT(block_bio
, block_bio_queue
,
668 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
674 DECLARE_EVENT_CLASS(block_get_rq
,
676 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
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
)
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)) */
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
)
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)
722 * A request struct for queue @q has been allocated to handle the
723 * block IO operation @bio.
725 DEFINE_EVENT(block_get_rq
, block_getrq
,
727 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
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)
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.
743 DEFINE_EVENT(block_get_rq
, block_sleeprq
,
745 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
751 * block_plug - keep operations requests in request queue
752 * @q: request queue to plug
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.
758 TRACE_EVENT(block_plug
,
760 TP_PROTO(struct request_queue
*q
),
765 __field( pid_t
, tid
)
766 __array_text( char, comm
, TASK_COMM_LEN
)
770 tp_memcpy(comm
, current
->comm
, TASK_COMM_LEN
)
771 tp_assign(tid
, current
->pid
)
774 TP_printk("[%s] %d", __entry
->comm
, __entry
->tid
)
777 DECLARE_EVENT_CLASS(block_unplug
,
779 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
780 TP_PROTO(struct request_queue
*q
, unsigned int depth
, bool explicit),
782 TP_ARGS(q
, depth
, explicit),
784 TP_PROTO(struct request_queue
*q
),
790 __field( int, nr_rq
)
791 __field( pid_t
, tid
)
792 __array_text( char, comm
, TASK_COMM_LEN
)
796 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
797 tp_assign(nr_rq
, depth
)
799 tp_assign(nr_rq
, q
->rq
.count
[READ
] + q
->rq
.count
[WRITE
])
801 tp_memcpy(comm
, current
->comm
, TASK_COMM_LEN
)
802 tp_assign(tid
, current
->pid
)
805 TP_printk("[%s] %d %d", __entry
->comm
, , __entry
->tid
,
809 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
811 * block_unplug_timer - timed release of operations requests in queue to device driver
812 * @q: request queue to unplug
814 * Unplug the request queue @q because a timer expired and allow block
815 * operation requests to be sent to the device driver.
817 DEFINE_EVENT(block_unplug
, block_unplug_timer
,
819 TP_PROTO(struct request_queue
*q
),
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()
831 * Unplug request queue @q because device driver is scheduled to work
832 * on elements in the request queue.
834 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
835 DEFINE_EVENT(block_unplug
, block_unplug
,
837 DEFINE_EVENT(block_unplug
, block_unplug_io
,
840 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
841 TP_PROTO(struct request_queue
*q
, unsigned int depth
, bool explicit),
843 TP_ARGS(q
, depth
, explicit)
845 TP_PROTO(struct request_queue
*q
),
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
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.
862 TRACE_EVENT(block_split
,
864 TP_PROTO(struct request_queue
*q
, struct bio
*bio
,
865 unsigned int new_sector
),
867 TP_ARGS(q
, bio
, new_sector
),
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
)
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)) */
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
)
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
911 * An operation for a logical device has been mapped to the
914 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
915 TRACE_EVENT(block_bio_remap
,
917 TRACE_EVENT(block_remap
,
920 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, dev_t dev
,
923 TP_ARGS(q
, bio
, dev
, from
),
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
)
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)) */
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
,
957 MAJOR(__entry
->old_dev
), MINOR(__entry
->old_dev
),
958 (unsigned long long)__entry
->old_sector
)
961 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
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
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.
973 TRACE_EVENT(block_rq_remap
,
975 TP_PROTO(struct request_queue
*q
, struct request
*rq
, dev_t dev
,
978 TP_ARGS(q
, rq
, dev
, from
),
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
)
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
))
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
,
1003 MAJOR(__entry
->old_dev
), MINOR(__entry
->old_dev
),
1004 (unsigned long long)__entry
->old_sector
)
1008 #undef __print_rwbs_flags
1009 #undef blk_fill_rwbs
1011 #endif /* _TRACE_BLOCK_H */
1013 /* This part must be outside protection */
1014 #include "../../../probes/define_trace.h"
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