]>
git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/trace/events/block.h
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/buffer_head.h>
10 #include <linux/tracepoint.h>
14 DECLARE_EVENT_CLASS(block_buffer
,
16 TP_PROTO(struct buffer_head
*bh
),
22 __field( sector_t
, sector
)
23 __field( size_t, size
)
27 __entry
->dev
= bh
->b_bdev
->bd_dev
;
28 __entry
->sector
= bh
->b_blocknr
;
29 __entry
->size
= bh
->b_size
;
32 TP_printk("%d,%d sector=%llu size=%zu",
33 MAJOR(__entry
->dev
), MINOR(__entry
->dev
),
34 (unsigned long long)__entry
->sector
, __entry
->size
39 * block_touch_buffer - mark a buffer accessed
40 * @bh: buffer_head being touched
42 * Called from touch_buffer().
44 DEFINE_EVENT(block_buffer
, block_touch_buffer
,
46 TP_PROTO(struct buffer_head
*bh
),
52 * block_dirty_buffer - mark a buffer dirty
53 * @bh: buffer_head being dirtied
55 * Called from mark_buffer_dirty().
57 DEFINE_EVENT(block_buffer
, block_dirty_buffer
,
59 TP_PROTO(struct buffer_head
*bh
),
65 * block_rq_requeue - place block IO request back on a queue
66 * @q: queue holding operation
67 * @rq: block IO operation request
69 * The block operation request @rq is being placed back into queue
70 * @q. For some reason the request was not completed and needs to be
71 * put back in the queue.
73 TRACE_EVENT(block_rq_requeue
,
75 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
81 __field( sector_t
, sector
)
82 __field( unsigned int, nr_sector
)
83 __array( char, rwbs
, RWBS_LEN
)
84 __dynamic_array( char, cmd
, 1 )
88 __entry
->dev
= rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0;
89 __entry
->sector
= blk_rq_trace_sector(rq
);
90 __entry
->nr_sector
= blk_rq_trace_nr_sectors(rq
);
92 blk_fill_rwbs(__entry
->rwbs
, rq
->cmd_flags
, blk_rq_bytes(rq
));
93 __get_str(cmd
)[0] = '\0';
96 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
97 MAJOR(__entry
->dev
), MINOR(__entry
->dev
),
98 __entry
->rwbs
, __get_str(cmd
),
99 (unsigned long long)__entry
->sector
,
100 __entry
->nr_sector
, 0)
104 * block_rq_complete - block IO operation completed by device driver
105 * @rq: block operations request
106 * @error: status code
107 * @nr_bytes: number of completed bytes
109 * The block_rq_complete tracepoint event indicates that some portion
110 * of operation request has been completed by the device driver. If
111 * the @rq->bio is %NULL, then there is absolutely no additional work to
112 * do for the request. If @rq->bio is non-NULL then there is
113 * additional work required to complete the request.
115 TRACE_EVENT(block_rq_complete
,
117 TP_PROTO(struct request
*rq
, int error
, unsigned int nr_bytes
),
119 TP_ARGS(rq
, error
, nr_bytes
),
122 __field( dev_t
, dev
)
123 __field( sector_t
, sector
)
124 __field( unsigned int, nr_sector
)
125 __field( int, error
)
126 __array( char, rwbs
, RWBS_LEN
)
127 __dynamic_array( char, cmd
, 1 )
131 __entry
->dev
= rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0;
132 __entry
->sector
= blk_rq_pos(rq
);
133 __entry
->nr_sector
= nr_bytes
>> 9;
134 __entry
->error
= error
;
136 blk_fill_rwbs(__entry
->rwbs
, rq
->cmd_flags
, nr_bytes
);
137 __get_str(cmd
)[0] = '\0';
140 TP_printk("%d,%d %s (%s) %llu + %u [%d]",
141 MAJOR(__entry
->dev
), MINOR(__entry
->dev
),
142 __entry
->rwbs
, __get_str(cmd
),
143 (unsigned long long)__entry
->sector
,
144 __entry
->nr_sector
, __entry
->error
)
147 DECLARE_EVENT_CLASS(block_rq
,
149 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
154 __field( dev_t
, dev
)
155 __field( sector_t
, sector
)
156 __field( unsigned int, nr_sector
)
157 __field( unsigned int, bytes
)
158 __array( char, rwbs
, RWBS_LEN
)
159 __array( char, comm
, TASK_COMM_LEN
)
160 __dynamic_array( char, cmd
, 1 )
164 __entry
->dev
= rq
->rq_disk
? disk_devt(rq
->rq_disk
) : 0;
165 __entry
->sector
= blk_rq_trace_sector(rq
);
166 __entry
->nr_sector
= blk_rq_trace_nr_sectors(rq
);
167 __entry
->bytes
= blk_rq_bytes(rq
);
169 blk_fill_rwbs(__entry
->rwbs
, rq
->cmd_flags
, blk_rq_bytes(rq
));
170 __get_str(cmd
)[0] = '\0';
171 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
174 TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
175 MAJOR(__entry
->dev
), MINOR(__entry
->dev
),
176 __entry
->rwbs
, __entry
->bytes
, __get_str(cmd
),
177 (unsigned long long)__entry
->sector
,
178 __entry
->nr_sector
, __entry
->comm
)
182 * block_rq_insert - insert block operation request into queue
184 * @rq: block IO operation request
186 * Called immediately before block operation request @rq is inserted
187 * into queue @q. The fields in the operation request @rq struct can
188 * be examined to determine which device and sectors the pending
189 * operation would access.
191 DEFINE_EVENT(block_rq
, block_rq_insert
,
193 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
199 * block_rq_issue - issue pending block IO request operation to device driver
200 * @q: queue holding operation
201 * @rq: block IO operation operation request
203 * Called when block operation request @rq from queue @q is sent to a
204 * device driver for processing.
206 DEFINE_EVENT(block_rq
, block_rq_issue
,
208 TP_PROTO(struct request_queue
*q
, struct request
*rq
),
214 * block_bio_bounce - used bounce buffer when processing block operation
215 * @q: queue holding the block operation
216 * @bio: block operation
218 * A bounce buffer was used to handle the block operation @bio in @q.
219 * This occurs when hardware limitations prevent a direct transfer of
220 * data between the @bio data memory area and the IO device. Use of a
221 * bounce buffer requires extra copying of data and decreases
224 TRACE_EVENT(block_bio_bounce
,
226 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
231 __field( dev_t
, dev
)
232 __field( sector_t
, sector
)
233 __field( unsigned int, nr_sector
)
234 __array( char, rwbs
, RWBS_LEN
)
235 __array( char, comm
, TASK_COMM_LEN
)
239 __entry
->dev
= bio
->bi_bdev
?
240 bio
->bi_bdev
->bd_dev
: 0;
241 __entry
->sector
= bio
->bi_iter
.bi_sector
;
242 __entry
->nr_sector
= bio_sectors(bio
);
243 blk_fill_rwbs(__entry
->rwbs
, bio
->bi_opf
, bio
->bi_iter
.bi_size
);
244 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
247 TP_printk("%d,%d %s %llu + %u [%s]",
248 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
249 (unsigned long long)__entry
->sector
,
250 __entry
->nr_sector
, __entry
->comm
)
254 * block_bio_complete - completed all work on the block operation
255 * @q: queue holding the block operation
256 * @bio: block operation completed
257 * @error: io error value
259 * This tracepoint indicates there is no further work to do on this
260 * block IO operation @bio.
262 TRACE_EVENT(block_bio_complete
,
264 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int error
),
266 TP_ARGS(q
, bio
, error
),
269 __field( dev_t
, dev
)
270 __field( sector_t
, sector
)
271 __field( unsigned, nr_sector
)
272 __field( int, error
)
273 __array( char, rwbs
, RWBS_LEN
)
277 __entry
->dev
= bio
->bi_bdev
->bd_dev
;
278 __entry
->sector
= bio
->bi_iter
.bi_sector
;
279 __entry
->nr_sector
= bio_sectors(bio
);
280 __entry
->error
= error
;
281 blk_fill_rwbs(__entry
->rwbs
, bio
->bi_opf
, bio
->bi_iter
.bi_size
);
284 TP_printk("%d,%d %s %llu + %u [%d]",
285 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
286 (unsigned long long)__entry
->sector
,
287 __entry
->nr_sector
, __entry
->error
)
290 DECLARE_EVENT_CLASS(block_bio_merge
,
292 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
297 __field( dev_t
, dev
)
298 __field( sector_t
, sector
)
299 __field( unsigned int, nr_sector
)
300 __array( char, rwbs
, RWBS_LEN
)
301 __array( char, comm
, TASK_COMM_LEN
)
305 __entry
->dev
= bio
->bi_bdev
->bd_dev
;
306 __entry
->sector
= bio
->bi_iter
.bi_sector
;
307 __entry
->nr_sector
= bio_sectors(bio
);
308 blk_fill_rwbs(__entry
->rwbs
, bio
->bi_opf
, bio
->bi_iter
.bi_size
);
309 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
312 TP_printk("%d,%d %s %llu + %u [%s]",
313 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
314 (unsigned long long)__entry
->sector
,
315 __entry
->nr_sector
, __entry
->comm
)
319 * block_bio_backmerge - merging block operation to the end of an existing operation
320 * @q: queue holding operation
321 * @rq: request bio is being merged into
322 * @bio: new block operation to merge
324 * Merging block request @bio to the end of an existing block request
327 DEFINE_EVENT(block_bio_merge
, block_bio_backmerge
,
329 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
335 * block_bio_frontmerge - merging block operation to the beginning of an existing operation
336 * @q: queue holding operation
337 * @rq: request bio is being merged into
338 * @bio: new block operation to merge
340 * Merging block IO operation @bio to the beginning of an existing block
341 * operation in queue @q.
343 DEFINE_EVENT(block_bio_merge
, block_bio_frontmerge
,
345 TP_PROTO(struct request_queue
*q
, struct request
*rq
, struct bio
*bio
),
351 * block_bio_queue - putting new block IO operation in queue
352 * @q: queue holding operation
353 * @bio: new block operation
355 * About to place the block IO operation @bio into queue @q.
357 TRACE_EVENT(block_bio_queue
,
359 TP_PROTO(struct request_queue
*q
, struct bio
*bio
),
364 __field( dev_t
, dev
)
365 __field( sector_t
, sector
)
366 __field( unsigned int, nr_sector
)
367 __array( char, rwbs
, RWBS_LEN
)
368 __array( char, comm
, TASK_COMM_LEN
)
372 __entry
->dev
= bio
->bi_bdev
->bd_dev
;
373 __entry
->sector
= bio
->bi_iter
.bi_sector
;
374 __entry
->nr_sector
= bio_sectors(bio
);
375 blk_fill_rwbs(__entry
->rwbs
, bio
->bi_opf
, bio
->bi_iter
.bi_size
);
376 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
379 TP_printk("%d,%d %s %llu + %u [%s]",
380 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
381 (unsigned long long)__entry
->sector
,
382 __entry
->nr_sector
, __entry
->comm
)
385 DECLARE_EVENT_CLASS(block_get_rq
,
387 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
392 __field( dev_t
, dev
)
393 __field( sector_t
, sector
)
394 __field( unsigned int, nr_sector
)
395 __array( char, rwbs
, RWBS_LEN
)
396 __array( char, comm
, TASK_COMM_LEN
)
400 __entry
->dev
= bio
? bio
->bi_bdev
->bd_dev
: 0;
401 __entry
->sector
= bio
? bio
->bi_iter
.bi_sector
: 0;
402 __entry
->nr_sector
= bio
? bio_sectors(bio
) : 0;
403 blk_fill_rwbs(__entry
->rwbs
,
404 bio
? bio
->bi_opf
: 0, __entry
->nr_sector
);
405 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
408 TP_printk("%d,%d %s %llu + %u [%s]",
409 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
410 (unsigned long long)__entry
->sector
,
411 __entry
->nr_sector
, __entry
->comm
)
415 * block_getrq - get a free request entry in queue for block IO operations
416 * @q: queue for operations
417 * @bio: pending block IO operation
418 * @rw: low bit indicates a read (%0) or a write (%1)
420 * A request struct for queue @q has been allocated to handle the
421 * block IO operation @bio.
423 DEFINE_EVENT(block_get_rq
, block_getrq
,
425 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
431 * block_sleeprq - waiting to get a free request entry in queue for block IO operation
432 * @q: queue for operation
433 * @bio: pending block IO operation
434 * @rw: low bit indicates a read (%0) or a write (%1)
436 * In the case where a request struct cannot be provided for queue @q
437 * the process needs to wait for an request struct to become
438 * available. This tracepoint event is generated each time the
439 * process goes to sleep waiting for request struct become available.
441 DEFINE_EVENT(block_get_rq
, block_sleeprq
,
443 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, int rw
),
449 * block_plug - keep operations requests in request queue
450 * @q: request queue to plug
452 * Plug the request queue @q. Do not allow block operation requests
453 * to be sent to the device driver. Instead, accumulate requests in
454 * the queue to improve throughput performance of the block device.
456 TRACE_EVENT(block_plug
,
458 TP_PROTO(struct request_queue
*q
),
463 __array( char, comm
, TASK_COMM_LEN
)
467 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
470 TP_printk("[%s]", __entry
->comm
)
473 DECLARE_EVENT_CLASS(block_unplug
,
475 TP_PROTO(struct request_queue
*q
, unsigned int depth
, bool explicit),
477 TP_ARGS(q
, depth
, explicit),
480 __field( int, nr_rq
)
481 __array( char, comm
, TASK_COMM_LEN
)
485 __entry
->nr_rq
= depth
;
486 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
489 TP_printk("[%s] %d", __entry
->comm
, __entry
->nr_rq
)
493 * block_unplug - release of operations requests in request queue
494 * @q: request queue to unplug
495 * @depth: number of requests just added to the queue
496 * @explicit: whether this was an explicit unplug, or one from schedule()
498 * Unplug request queue @q because device driver is scheduled to work
499 * on elements in the request queue.
501 DEFINE_EVENT(block_unplug
, block_unplug
,
503 TP_PROTO(struct request_queue
*q
, unsigned int depth
, bool explicit),
505 TP_ARGS(q
, depth
, explicit)
509 * block_split - split a single bio struct into two bio structs
510 * @q: queue containing the bio
511 * @bio: block operation being split
512 * @new_sector: The starting sector for the new bio
514 * The bio request @bio in request queue @q needs to be split into two
515 * bio requests. The newly created @bio request starts at
516 * @new_sector. This split may be required due to hardware limitation
517 * such as operation crossing device boundaries in a RAID system.
519 TRACE_EVENT(block_split
,
521 TP_PROTO(struct request_queue
*q
, struct bio
*bio
,
522 unsigned int new_sector
),
524 TP_ARGS(q
, bio
, new_sector
),
527 __field( dev_t
, dev
)
528 __field( sector_t
, sector
)
529 __field( sector_t
, new_sector
)
530 __array( char, rwbs
, RWBS_LEN
)
531 __array( char, comm
, TASK_COMM_LEN
)
535 __entry
->dev
= bio
->bi_bdev
->bd_dev
;
536 __entry
->sector
= bio
->bi_iter
.bi_sector
;
537 __entry
->new_sector
= new_sector
;
538 blk_fill_rwbs(__entry
->rwbs
, bio
->bi_opf
, bio
->bi_iter
.bi_size
);
539 memcpy(__entry
->comm
, current
->comm
, TASK_COMM_LEN
);
542 TP_printk("%d,%d %s %llu / %llu [%s]",
543 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
544 (unsigned long long)__entry
->sector
,
545 (unsigned long long)__entry
->new_sector
,
550 * block_bio_remap - map request for a logical device to the raw device
551 * @q: queue holding the operation
552 * @bio: revised operation
553 * @dev: device for the operation
554 * @from: original sector for the operation
556 * An operation for a logical device has been mapped to the
559 TRACE_EVENT(block_bio_remap
,
561 TP_PROTO(struct request_queue
*q
, struct bio
*bio
, dev_t dev
,
564 TP_ARGS(q
, bio
, dev
, from
),
567 __field( dev_t
, dev
)
568 __field( sector_t
, sector
)
569 __field( unsigned int, nr_sector
)
570 __field( dev_t
, old_dev
)
571 __field( sector_t
, old_sector
)
572 __array( char, rwbs
, RWBS_LEN
)
576 __entry
->dev
= bio
->bi_bdev
->bd_dev
;
577 __entry
->sector
= bio
->bi_iter
.bi_sector
;
578 __entry
->nr_sector
= bio_sectors(bio
);
579 __entry
->old_dev
= dev
;
580 __entry
->old_sector
= from
;
581 blk_fill_rwbs(__entry
->rwbs
, bio
->bi_opf
, bio
->bi_iter
.bi_size
);
584 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
585 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
586 (unsigned long long)__entry
->sector
,
588 MAJOR(__entry
->old_dev
), MINOR(__entry
->old_dev
),
589 (unsigned long long)__entry
->old_sector
)
593 * block_rq_remap - map request for a block operation request
594 * @q: queue holding the operation
595 * @rq: block IO operation request
596 * @dev: device for the operation
597 * @from: original sector for the operation
599 * The block operation request @rq in @q has been remapped. The block
600 * operation request @rq holds the current information and @from hold
601 * the original sector.
603 TRACE_EVENT(block_rq_remap
,
605 TP_PROTO(struct request_queue
*q
, struct request
*rq
, dev_t dev
,
608 TP_ARGS(q
, rq
, dev
, from
),
611 __field( dev_t
, dev
)
612 __field( sector_t
, sector
)
613 __field( unsigned int, nr_sector
)
614 __field( dev_t
, old_dev
)
615 __field( sector_t
, old_sector
)
616 __field( unsigned int, nr_bios
)
617 __array( char, rwbs
, RWBS_LEN
)
621 __entry
->dev
= disk_devt(rq
->rq_disk
);
622 __entry
->sector
= blk_rq_pos(rq
);
623 __entry
->nr_sector
= blk_rq_sectors(rq
);
624 __entry
->old_dev
= dev
;
625 __entry
->old_sector
= from
;
626 __entry
->nr_bios
= blk_rq_count_bios(rq
);
627 blk_fill_rwbs(__entry
->rwbs
, rq
->cmd_flags
, blk_rq_bytes(rq
));
630 TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u",
631 MAJOR(__entry
->dev
), MINOR(__entry
->dev
), __entry
->rwbs
,
632 (unsigned long long)__entry
->sector
,
634 MAJOR(__entry
->old_dev
), MINOR(__entry
->old_dev
),
635 (unsigned long long)__entry
->old_sector
, __entry
->nr_bios
)
638 #endif /* _TRACE_BLOCK_H */
640 /* This part must be outside protection */
641 #include <trace/define_trace.h>