2 #define TRACE_SYSTEM block
4 #if !defined(LTTNG_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
5 #define LTTNG_TRACE_BLOCK_H
7 #include "../../../probes/lttng-tracepoint-event.h"
8 #include <linux/blktrace_api.h>
9 #include <linux/blkdev.h>
10 #include <linux/trace_seq.h>
11 #include <linux/version.h>
13 #ifndef _TRACE_BLOCK_DEF_
14 #define _TRACE_BLOCK_DEF_
17 RWBS_FLAG_WRITE
= (1 << 0),
18 RWBS_FLAG_DISCARD
= (1 << 1),
19 RWBS_FLAG_READ
= (1 << 2),
20 RWBS_FLAG_RAHEAD
= (1 << 3),
21 RWBS_FLAG_BARRIER
= (1 << 4),
22 RWBS_FLAG_SYNC
= (1 << 5),
23 RWBS_FLAG_META
= (1 << 6),
24 RWBS_FLAG_SECURE
= (1 << 7),
25 RWBS_FLAG_FLUSH
= (1 << 8),
26 RWBS_FLAG_FUA
= (1 << 9),
29 #endif /* _TRACE_BLOCK_DEF_ */
31 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0))
33 #define blk_rwbs_ctf_integer(type, rwbs, rw, bytes) \
34 ctf_integer(type, rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
35 ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \
36 ( (bytes) ? RWBS_FLAG_READ : \
38 | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \
39 | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \
40 | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \
41 | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0) \
42 | ((rw) & REQ_FLUSH ? RWBS_FLAG_FLUSH : 0) \
43 | ((rw) & REQ_FUA ? RWBS_FLAG_FUA : 0))
45 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
47 #define blk_rwbs_ctf_integer(type, rwbs, rw, bytes) \
48 ctf_integer(type, rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
49 ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \
50 ( (bytes) ? RWBS_FLAG_READ : \
52 | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \
53 | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \
54 | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \
55 | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0))
57 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
59 #define blk_rwbs_ctf_integer(type, rwbs, rw, bytes) \
60 ctf_integer(type, rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
61 ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \
62 ( (bytes) ? RWBS_FLAG_READ : \
64 | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \
65 | ((rw) & REQ_HARDBARRIER ? RWBS_FLAG_BARRIER : 0) \
66 | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \
67 | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \
68 | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0))
72 #define blk_rwbs_ctf_integer(type, rwbs, rw, bytes) \
73 ctf_integer(type, rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \
74 ( (rw) & (1 << BIO_RW_DISCARD) ? RWBS_FLAG_DISCARD : \
75 ( (bytes) ? RWBS_FLAG_READ : \
77 | ((rw) & (1 << BIO_RW_AHEAD) ? RWBS_FLAG_RAHEAD : 0) \
78 | ((rw) & (1 << BIO_RW_SYNCIO) ? RWBS_FLAG_SYNC : 0) \
79 | ((rw) & (1 << BIO_RW_META) ? RWBS_FLAG_META : 0) \
80 | ((rw) & (1 << BIO_RW_BARRIER) ? RWBS_FLAG_BARRIER : 0))
84 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
85 LTTNG_TRACEPOINT_EVENT_CLASS(block_buffer
,
87 TP_PROTO(struct buffer_head
*bh
),
92 ctf_integer(dev_t
, dev
, bh
->b_bdev
->bd_dev
)
93 ctf_integer(sector_t
, sector
, bh
->b_blocknr
)
94 ctf_integer(size_t, size
, bh
->b_size
)
99 * block_touch_buffer - mark a buffer accessed
100 * @bh: buffer_head being touched
102 * Called from touch_buffer().
104 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_buffer
, block_touch_buffer
,
106 TP_PROTO(struct buffer_head
*bh
),
112 * block_dirty_buffer - mark a buffer dirty
113 * @bh: buffer_head being dirtied
115 * Called from mark_buffer_dirty().
117 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_buffer
, block_dirty_buffer
,
119 TP_PROTO(struct buffer_head
*bh
),
125 LTTNG_TRACEPOINT_EVENT_CLASS_CODE(block_rq_with_error
,
127 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
133 unsigned int nr_sector
;
139 if (rq
->cmd_type
== REQ_TYPE_BLOCK_PC
) {
140 tp_locvar
->sector
= 0;
141 tp_locvar
->nr_sector
= 0;
142 tp_locvar
->cmd
= rq
->cmd
;
143 tp_locvar
->cmd_len
= rq
->cmd_len
;
145 tp_locvar
->sector
= blk_rq_pos(rq
);
146 tp_locvar
->nr_sector
= blk_rq_sectors(rq
);
147 tp_locvar
->cmd
= NULL
;
148 tp_locvar
->cmd_len
= 0;
153 ctf_integer(dev_t
, dev
,
154 rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0)
155 ctf_integer(sector_t
, sector
, tp_locvar
->sector
)
156 ctf_integer(unsigned int, nr_sector
, tp_locvar
->nr_sector
)
157 ctf_integer(int, errors
, rq
->errors
)
158 blk_rwbs_ctf_integer(unsigned int, rwbs
,
159 rq
->cmd_flags
, blk_rq_bytes(rq
))
160 ctf_sequence_hex(unsigned char, cmd
,
161 tp_locvar
->cmd
, size_t, tp_locvar
->cmd_len
)
166 * block_rq_abort - abort block operation request
167 * @q: queue containing the block operation request
168 * @rq: block IO operation request
170 * Called immediately after pending block IO operation request @rq in
171 * queue @q is aborted. The fields in the operation request @rq
172 * can be examined to determine which device and sectors the pending
173 * operation would access.
175 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq_with_error
, block_rq_abort
,
177 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
183 * block_rq_requeue - place block IO request back on a queue
184 * @q: queue holding operation
185 * @rq: block IO operation request
187 * The block operation request @rq is being placed back into queue
188 * @q. For some reason the request was not completed and needs to be
189 * put back in the queue.
191 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq_with_error
, block_rq_requeue
,
193 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
198 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,5) \
199 || LTTNG_KERNEL_RANGE(3,12,21, 3,13,0) \
200 || LTTNG_KERNEL_RANGE(3,10,41, 3,11,0) \
201 || LTTNG_KERNEL_RANGE(3,4,91, 3,5,0) \
202 || LTTNG_KERNEL_RANGE(3,2,58, 3,3,0) \
203 || LTTNG_UBUNTU_KERNEL_RANGE(3,13,11,31, 3,14,0,0) \
204 || LTTNG_RHEL_KERNEL_RANGE(3,10,0,7,1, 3,11,0,0,0))
207 * block_rq_complete - block IO operation completed by device driver
208 * @q: queue containing the block operation request
209 * @rq: block operations request
210 * @nr_bytes: number of completed bytes
212 * The block_rq_complete tracepoint event indicates that some portion
213 * of operation request has been completed by the device driver. If
214 * the @rq->bio is %NULL, then there is absolutely no additional work to
215 * do for the request. If @rq->bio is non-NULL then there is
216 * additional work required to complete the request.
218 LTTNG_TRACEPOINT_EVENT_CODE(block_rq_complete
,
220 TP_PROTO(struct request_queue
*q
, struct request
*rq
,
221 unsigned int nr_bytes
),
223 TP_ARGS(q
, rq
, nr_bytes
),
231 if (rq
->cmd_type
== REQ_TYPE_BLOCK_PC
) {
232 tp_locvar
->cmd
= rq
->cmd
;
233 tp_locvar
->cmd_len
= rq
->cmd_len
;
235 tp_locvar
->cmd
= NULL
;
236 tp_locvar
->cmd_len
= 0;
241 ctf_integer(dev_t
, dev
,
242 rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0)
243 ctf_integer(sector_t
, sector
, blk_rq_pos(rq
))
244 ctf_integer(unsigned int, nr_sector
, nr_bytes
>> 9)
245 ctf_integer(int, errors
, rq
->errors
)
246 blk_rwbs_ctf_integer(unsigned int, rwbs
,
247 rq
->cmd_flags
, nr_bytes
)
248 ctf_sequence_hex(unsigned char, cmd
,
249 tp_locvar
->cmd
, size_t, tp_locvar
->cmd_len
)
253 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
256 * block_rq_complete - block IO operation completed by device driver
257 * @q: queue containing the block operation request
258 * @rq: block operations request
260 * The block_rq_complete tracepoint event indicates that some portion
261 * of operation request has been completed by the device driver. If
262 * the @rq->bio is %NULL, then there is absolutely no additional work to
263 * do for the request. If @rq->bio is non-NULL then there is
264 * additional work required to complete the request.
266 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq_with_error
, block_rq_complete
,
268 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
273 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,15,0)) */
275 LTTNG_TRACEPOINT_EVENT_CLASS_CODE(block_rq
,
277 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
283 unsigned int nr_sector
;
290 if (rq
->cmd_type
== REQ_TYPE_BLOCK_PC
) {
291 tp_locvar
->sector
= 0;
292 tp_locvar
->nr_sector
= 0;
293 tp_locvar
->bytes
= blk_rq_bytes(rq
);
294 tp_locvar
->cmd
= rq
->cmd
;
295 tp_locvar
->cmd_len
= rq
->cmd_len
;
297 tp_locvar
->sector
= blk_rq_pos(rq
);
298 tp_locvar
->nr_sector
= blk_rq_sectors(rq
);
299 tp_locvar
->bytes
= 0;
300 tp_locvar
->cmd
= NULL
;
301 tp_locvar
->cmd_len
= 0;
306 ctf_integer(dev_t
, dev
,
307 rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0)
308 ctf_integer(sector_t
, sector
, tp_locvar
->sector
)
309 ctf_integer(unsigned int, nr_sector
, tp_locvar
->nr_sector
)
310 ctf_integer(unsigned int, bytes
, tp_locvar
->bytes
)
311 ctf_integer(pid_t
, tid
, current
->pid
)
312 blk_rwbs_ctf_integer(unsigned int, rwbs
,
313 rq
->cmd_flags
, blk_rq_bytes(rq
))
314 ctf_sequence_hex(unsigned char, cmd
,
315 tp_locvar
->cmd
, size_t, tp_locvar
->cmd_len
)
316 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
321 * block_rq_insert - insert block operation request into queue
323 * @rq: block IO operation request
325 * Called immediately before block operation request @rq is inserted
326 * into queue @q. The fields in the operation request @rq struct can
327 * be examined to determine which device and sectors the pending
328 * operation would access.
330 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq
, block_rq_insert
,
332 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
338 * block_rq_issue - issue pending block IO request operation to device driver
339 * @q: queue holding operation
340 * @rq: block IO operation operation request
342 * Called when block operation request @rq from queue @q is sent to a
343 * device driver for processing.
345 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq
, block_rq_issue
,
347 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
353 * block_bio_bounce - used bounce buffer when processing block operation
354 * @q: queue holding the block operation
355 * @bio: block operation
357 * A bounce buffer was used to handle the block operation @bio in @q.
358 * This occurs when hardware limitations prevent a direct transfer of
359 * data between the @bio data memory area and the IO device. Use of a
360 * bounce buffer requires extra copying of data and decreases
363 LTTNG_TRACEPOINT_EVENT(block_bio_bounce
,
365 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
370 ctf_integer(dev_t
, dev
, bio
->bi_bdev
? bio
->bi_bdev
->bd_dev
: 0)
371 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
372 ctf_integer(sector_t
, sector
, bio
->bi_iter
.bi_sector
)
373 ctf_integer(unsigned int, nr_sector
, bio_sectors(bio
))
374 blk_rwbs_ctf_integer(unsigned int, rwbs
,
375 bio
->bi_rw
, bio
->bi_iter
.bi_size
)
376 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
377 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
378 ctf_integer(unsigned int, nr_sector
, bio
->bi_size
>> 9)
379 blk_rwbs_ctf_integer(unsigned int, rwbs
,
380 bio
->bi_rw
, bio
->bi_size
)
381 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
382 ctf_integer(pid_t
, tid
, current
->pid
)
383 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
388 * block_bio_complete - completed all work on the block operation
389 * @q: queue holding the block operation
390 * @bio: block operation completed
391 * @error: io error value
393 * This tracepoint indicates there is no further work to do on this
394 * block IO operation @bio.
396 LTTNG_TRACEPOINT_EVENT(block_bio_complete
,
398 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
399 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int error
),
401 TP_ARGS(q
, bio
, error
),
403 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
409 ctf_integer(dev_t
, dev
, bio
->bi_bdev
->bd_dev
)
410 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
411 ctf_integer(sector_t
, sector
, bio
->bi_iter
.bi_sector
)
412 ctf_integer(unsigned int, nr_sector
, bio_sectors(bio
))
413 ctf_integer(int, error
, error
)
414 blk_rwbs_ctf_integer(unsigned int, rwbs
,
415 bio
->bi_rw
, bio
->bi_iter
.bi_size
)
416 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
417 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
418 ctf_integer(unsigned int, nr_sector
, bio
->bi_size
>> 9)
419 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
420 ctf_integer(int, error
, error
)
422 ctf_integer(int, error
, 0)
424 blk_rwbs_ctf_integer(unsigned int, rwbs
,
425 bio
->bi_rw
, bio
->bi_size
)
426 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
430 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
431 LTTNG_TRACEPOINT_EVENT_CLASS(block_bio_merge
,
433 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
438 ctf_integer(dev_t
, dev
, bio
->bi_bdev
->bd_dev
)
439 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
440 ctf_integer(sector_t
, sector
, bio
->bi_iter
.bi_sector
)
441 ctf_integer(unsigned int, nr_sector
, bio_sectors(bio
))
442 blk_rwbs_ctf_integer(unsigned int, rwbs
,
443 bio
->bi_rw
, bio
->bi_iter
.bi_size
)
444 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
445 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
446 ctf_integer(unsigned int, nr_sector
, bio
->bi_size
>> 9)
447 blk_rwbs_ctf_integer(unsigned int, rwbs
,
448 bio
->bi_rw
, bio
->bi_size
)
449 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
450 ctf_integer(pid_t
, tid
, current
->pid
)
451 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
456 * block_bio_backmerge - merging block operation to the end of an existing operation
457 * @q: queue holding operation
458 * @bio: new block operation to merge
460 * Merging block request @bio to the end of an existing block request
463 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio_merge
, block_bio_backmerge
,
465 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
471 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
472 * @q: queue holding operation
473 * @bio: new block operation to merge
475 * Merging block IO operation @bio to the beginning of an existing block
476 * operation in queue @q.
478 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio_merge
, block_bio_frontmerge
,
480 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
486 * block_bio_queue - putting new block IO operation in queue
487 * @q: queue holding operation
488 * @bio: new block operation
490 * About to place the block IO operation @bio into queue @q.
492 LTTNG_TRACEPOINT_EVENT(block_bio_queue
,
494 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
499 ctf_integer(dev_t
, dev
, bio
->bi_bdev
->bd_dev
)
500 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
501 ctf_integer(sector_t
, sector
, bio
->bi_iter
.bi_sector
)
502 ctf_integer(unsigned int, nr_sector
, bio_sectors(bio
))
503 blk_rwbs_ctf_integer(unsigned int, rwbs
,
504 bio
->bi_rw
, bio
->bi_iter
.bi_size
)
505 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
506 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
507 ctf_integer(unsigned int, nr_sector
, bio
->bi_size
>> 9)
508 blk_rwbs_ctf_integer(unsigned int, rwbs
,
509 bio
->bi_rw
, bio
->bi_size
)
510 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
511 ctf_integer(pid_t
, tid
, current
->pid
)
512 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
515 #else /* if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
516 LTTNG_TRACEPOINT_EVENT_CLASS(block_bio
,
518 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
523 ctf_integer(dev_t
, dev
, bio
->bi_bdev
? bio
->bi_bdev
->bd_dev
: 0)
524 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
525 ctf_integer(unsigned int, nr_sector
, bio
->bi_size
>> 9)
526 blk_rwbs_ctf_integer(unsigned int, rwbs
,
527 bio
->bi_rw
, bio
->bi_size
)
528 ctf_integer(pid_t
, tid
, current
->pid
)
529 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
534 * block_bio_backmerge - merging block operation to the end of an existing operation
535 * @q: queue holding operation
536 * @bio: new block operation to merge
538 * Merging block request @bio to the end of an existing block request
541 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio
, block_bio_backmerge
,
543 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
549 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
550 * @q: queue holding operation
551 * @bio: new block operation to merge
553 * Merging block IO operation @bio to the beginning of an existing block
554 * operation in queue @q.
556 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio
, block_bio_frontmerge
,
558 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
564 * block_bio_queue - putting new block IO operation in queue
565 * @q: queue holding operation
566 * @bio: new block operation
568 * About to place the block IO operation @bio into queue @q.
570 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio
, block_bio_queue
,
572 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
576 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
578 LTTNG_TRACEPOINT_EVENT_CLASS(block_get_rq
,
580 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
585 ctf_integer(dev_t
, dev
, bio
? bio
->bi_bdev
->bd_dev
: 0)
586 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
587 ctf_integer(sector_t
, sector
, bio
? bio
->bi_iter
.bi_sector
: 0)
588 ctf_integer(unsigned int, nr_sector
,
589 bio
? bio_sectors(bio
) : 0)
590 blk_rwbs_ctf_integer(unsigned int, rwbs
,
591 bio
? bio
->bi_rw
: 0,
592 bio
? bio
->bi_iter
.bi_size
: 0)
593 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
594 ctf_integer(sector_t
, sector
, bio
? bio
->bi_sector
: 0)
595 ctf_integer(unsigned int, nr_sector
,
596 bio
? bio
->bi_size
>> 9 : 0)
597 blk_rwbs_ctf_integer(unsigned int, rwbs
,
598 bio
? bio
->bi_rw
: 0,
599 bio
? bio
->bi_size
: 0)
600 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
601 ctf_integer(pid_t
, tid
, current
->pid
)
602 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
607 * block_getrq - get a free request entry in queue for block IO operations
608 * @q: queue for operations
609 * @bio: pending block IO operation
610 * @rw: low bit indicates a read (%0) or a write (%1)
612 * A request struct for queue @q has been allocated to handle the
613 * block IO operation @bio.
615 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_get_rq
, block_getrq
,
617 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
623 * block_sleeprq - waiting to get a free request entry in queue for block IO operation
624 * @q: queue for operation
625 * @bio: pending block IO operation
626 * @rw: low bit indicates a read (%0) or a write (%1)
628 * In the case where a request struct cannot be provided for queue @q
629 * the process needs to wait for an request struct to become
630 * available. This tracepoint event is generated each time the
631 * process goes to sleep waiting for request struct become available.
633 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_get_rq
, block_sleeprq
,
635 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
641 * block_plug - keep operations requests in request queue
642 * @q: request queue to plug
644 * Plug the request queue @q. Do not allow block operation requests
645 * to be sent to the device driver. Instead, accumulate requests in
646 * the queue to improve throughput performance of the block device.
648 LTTNG_TRACEPOINT_EVENT(block_plug
,
650 TP_PROTO(struct request_queue
*q
),
655 ctf_integer(pid_t
, tid
, current
->pid
)
656 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
660 LTTNG_TRACEPOINT_EVENT_CLASS(block_unplug
,
662 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
663 TP_PROTO(struct request_queue
*q
, unsigned int depth
, bool explicit),
665 TP_ARGS(q
, depth
, explicit),
667 TP_PROTO(struct request_queue
*q
),
673 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
674 ctf_integer(int, nr_rq
, depth
)
676 ctf_integer(int, nr_rq
, q
->rq
.count
[READ
] + q
->rq
.count
[WRITE
])
678 ctf_integer(pid_t
, tid
, current
->pid
)
679 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
683 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
685 * block_unplug_timer - timed release of operations requests in queue to device driver
686 * @q: request queue to unplug
688 * Unplug the request queue @q because a timer expired and allow block
689 * operation requests to be sent to the device driver.
691 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_unplug
, block_unplug_timer
,
693 TP_PROTO(struct request_queue
*q
),
700 * block_unplug - release of operations requests in request queue
701 * @q: request queue to unplug
702 * @depth: number of requests just added to the queue
703 * @explicit: whether this was an explicit unplug, or one from schedule()
705 * Unplug request queue @q because device driver is scheduled to work
706 * on elements in the request queue.
708 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
709 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_unplug
, block_unplug
,
711 LTTNG_TRACEPOINT_EVENT_INSTANCE(block_unplug
, block_unplug_io
,
714 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39))
715 TP_PROTO(struct request_queue
*q
, unsigned int depth
, bool explicit),
717 TP_ARGS(q
, depth
, explicit)
719 TP_PROTO(struct request_queue
*q
),
726 * block_split - split a single bio struct into two bio structs
727 * @q: queue containing the bio
728 * @bio: block operation being split
729 * @new_sector: The starting sector for the new bio
731 * The bio request @bio in request queue @q needs to be split into two
732 * bio requests. The newly created @bio request starts at
733 * @new_sector. This split may be required due to hardware limitation
734 * such as operation crossing device boundaries in a RAID system.
736 LTTNG_TRACEPOINT_EVENT(block_split
,
738 TP_PROTO(struct request_queue
*q
, struct bio
*bio
,
739 unsigned int new_sector
),
741 TP_ARGS(q
, bio
, new_sector
),
744 ctf_integer(dev_t
, dev
, bio
->bi_bdev
->bd_dev
)
745 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
746 ctf_integer(sector_t
, sector
, bio
->bi_iter
.bi_sector
)
747 blk_rwbs_ctf_integer(unsigned int, rwbs
,
748 bio
->bi_rw
, bio
->bi_iter
.bi_size
)
749 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
750 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
751 blk_rwbs_ctf_integer(unsigned int, rwbs
,
752 bio
->bi_rw
, bio
->bi_size
)
753 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
754 ctf_integer(sector_t
, new_sector
, new_sector
)
755 ctf_integer(pid_t
, tid
, current
->pid
)
756 ctf_array_text(char, comm
, current
->comm
, TASK_COMM_LEN
)
761 * block_bio_remap - map request for a logical device to the raw device
762 * @q: queue holding the operation
763 * @bio: revised operation
764 * @dev: device for the operation
765 * @from: original sector for the operation
767 * An operation for a logical device has been mapped to the
770 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
771 LTTNG_TRACEPOINT_EVENT(block_bio_remap
,
773 LTTNG_TRACEPOINT_EVENT(block_remap
,
776 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, dev_t dev
,
779 TP_ARGS(q
, bio
, dev
, from
),
782 ctf_integer(dev_t
, dev
, bio
->bi_bdev
->bd_dev
)
783 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
784 ctf_integer(sector_t
, sector
, bio
->bi_iter
.bi_sector
)
785 ctf_integer(unsigned int, nr_sector
, bio_sectors(bio
))
786 blk_rwbs_ctf_integer(unsigned int, rwbs
,
787 bio
->bi_rw
, bio
->bi_iter
.bi_size
)
788 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
789 ctf_integer(sector_t
, sector
, bio
->bi_sector
)
790 ctf_integer(unsigned int, nr_sector
, bio
->bi_size
>> 9)
791 blk_rwbs_ctf_integer(unsigned int, rwbs
,
792 bio
->bi_rw
, bio
->bi_size
)
793 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */
794 ctf_integer(dev_t
, old_dev
, dev
)
795 ctf_integer(sector_t
, old_sector
, from
)
799 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
801 * block_rq_remap - map request for a block operation request
802 * @q: queue holding the operation
803 * @rq: block IO operation request
804 * @dev: device for the operation
805 * @from: original sector for the operation
807 * The block operation request @rq in @q has been remapped. The block
808 * operation request @rq holds the current information and @from hold
809 * the original sector.
811 LTTNG_TRACEPOINT_EVENT(block_rq_remap
,
813 TP_PROTO(struct request_queue
*q
, struct request
*rq
, dev_t dev
,
816 TP_ARGS(q
, rq
, dev
, from
),
819 ctf_integer(dev_t
, dev
, disk_devt(rq
->rq_disk
))
820 ctf_integer(sector_t
, sector
, blk_rq_pos(rq
))
821 ctf_integer(unsigned int, nr_sector
, blk_rq_sectors(rq
))
822 ctf_integer(dev_t
, old_dev
, dev
)
823 ctf_integer(sector_t
, old_sector
, from
)
824 blk_rwbs_ctf_integer(unsigned int, rwbs
,
825 rq
->cmd_flags
, blk_rq_bytes(rq
))
830 #undef __print_rwbs_flags
833 #endif /* LTTNG_TRACE_BLOCK_H */
835 /* This part must be outside protection */
836 #include "../../../probes/define_trace.h"
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