Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
d0b6e04a LZ |
2 | #undef TRACE_SYSTEM |
3 | #define TRACE_SYSTEM block | |
4 | ||
55782138 LZ |
5 | #if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ) |
6 | #define _TRACE_BLOCK_H | |
7 | ||
8 | #include <linux/blktrace_api.h> | |
9 | #include <linux/blkdev.h> | |
5305cb83 | 10 | #include <linux/buffer_head.h> |
55782138 LZ |
11 | #include <linux/tracepoint.h> |
12 | ||
c09c47ca NK |
13 | #define RWBS_LEN 8 |
14 | ||
5305cb83 TH |
15 | DECLARE_EVENT_CLASS(block_buffer, |
16 | ||
17 | TP_PROTO(struct buffer_head *bh), | |
18 | ||
19 | TP_ARGS(bh), | |
20 | ||
21 | TP_STRUCT__entry ( | |
22 | __field( dev_t, dev ) | |
23 | __field( sector_t, sector ) | |
24 | __field( size_t, size ) | |
25 | ), | |
26 | ||
27 | TP_fast_assign( | |
28 | __entry->dev = bh->b_bdev->bd_dev; | |
29 | __entry->sector = bh->b_blocknr; | |
30 | __entry->size = bh->b_size; | |
31 | ), | |
32 | ||
33 | TP_printk("%d,%d sector=%llu size=%zu", | |
34 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
35 | (unsigned long long)__entry->sector, __entry->size | |
36 | ) | |
37 | ); | |
38 | ||
39 | /** | |
40 | * block_touch_buffer - mark a buffer accessed | |
41 | * @bh: buffer_head being touched | |
42 | * | |
43 | * Called from touch_buffer(). | |
44 | */ | |
45 | DEFINE_EVENT(block_buffer, block_touch_buffer, | |
46 | ||
47 | TP_PROTO(struct buffer_head *bh), | |
48 | ||
49 | TP_ARGS(bh) | |
50 | ); | |
51 | ||
52 | /** | |
53 | * block_dirty_buffer - mark a buffer dirty | |
54 | * @bh: buffer_head being dirtied | |
55 | * | |
56 | * Called from mark_buffer_dirty(). | |
57 | */ | |
58 | DEFINE_EVENT(block_buffer, block_dirty_buffer, | |
59 | ||
60 | TP_PROTO(struct buffer_head *bh), | |
61 | ||
62 | TP_ARGS(bh) | |
63 | ); | |
64 | ||
cee4b7ce CH |
65 | /** |
66 | * block_rq_requeue - place block IO request back on a queue | |
cee4b7ce CH |
67 | * @rq: block IO operation request |
68 | * | |
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. | |
72 | */ | |
73 | TRACE_EVENT(block_rq_requeue, | |
55782138 | 74 | |
a54895fa | 75 | TP_PROTO(struct request *rq), |
55782138 | 76 | |
a54895fa | 77 | TP_ARGS(rq), |
55782138 LZ |
78 | |
79 | TP_STRUCT__entry( | |
80 | __field( dev_t, dev ) | |
81 | __field( sector_t, sector ) | |
82 | __field( unsigned int, nr_sector ) | |
c09c47ca | 83 | __array( char, rwbs, RWBS_LEN ) |
48b77ad6 | 84 | __dynamic_array( char, cmd, 1 ) |
55782138 LZ |
85 | ), |
86 | ||
87 | TP_fast_assign( | |
f3fa33ac | 88 | __entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0; |
48b77ad6 CH |
89 | __entry->sector = blk_rq_trace_sector(rq); |
90 | __entry->nr_sector = blk_rq_trace_nr_sectors(rq); | |
55782138 | 91 | |
179d1600 | 92 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags); |
48b77ad6 | 93 | __get_str(cmd)[0] = '\0'; |
55782138 LZ |
94 | ), |
95 | ||
96 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
97 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
98 | __entry->rwbs, __get_str(cmd), | |
6556d1df | 99 | (unsigned long long)__entry->sector, |
caf7df12 | 100 | __entry->nr_sector, 0) |
55782138 LZ |
101 | ); |
102 | ||
d5869fdc | 103 | DECLARE_EVENT_CLASS(block_rq_completion, |
77ca1e02 | 104 | |
8a7d267b | 105 | TP_PROTO(struct request *rq, blk_status_t error, unsigned int nr_bytes), |
77ca1e02 | 106 | |
caf7df12 | 107 | TP_ARGS(rq, error, nr_bytes), |
af5040da RP |
108 | |
109 | TP_STRUCT__entry( | |
110 | __field( dev_t, dev ) | |
111 | __field( sector_t, sector ) | |
112 | __field( unsigned int, nr_sector ) | |
8a7d267b | 113 | __field( int , error ) |
af5040da | 114 | __array( char, rwbs, RWBS_LEN ) |
48b77ad6 | 115 | __dynamic_array( char, cmd, 1 ) |
af5040da RP |
116 | ), |
117 | ||
118 | TP_fast_assign( | |
f3fa33ac | 119 | __entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0; |
af5040da RP |
120 | __entry->sector = blk_rq_pos(rq); |
121 | __entry->nr_sector = nr_bytes >> 9; | |
8a7d267b | 122 | __entry->error = blk_status_to_errno(error); |
af5040da | 123 | |
179d1600 | 124 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags); |
48b77ad6 | 125 | __get_str(cmd)[0] = '\0'; |
af5040da RP |
126 | ), |
127 | ||
128 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
129 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
130 | __entry->rwbs, __get_str(cmd), | |
131 | (unsigned long long)__entry->sector, | |
caf7df12 | 132 | __entry->nr_sector, __entry->error) |
55782138 LZ |
133 | ); |
134 | ||
d5869fdc YS |
135 | /** |
136 | * block_rq_complete - block IO operation completed by device driver | |
137 | * @rq: block operations request | |
138 | * @error: status code | |
139 | * @nr_bytes: number of completed bytes | |
140 | * | |
141 | * The block_rq_complete tracepoint event indicates that some portion | |
142 | * of operation request has been completed by the device driver. If | |
143 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
144 | * do for the request. If @rq->bio is non-NULL then there is | |
145 | * additional work required to complete the request. | |
146 | */ | |
147 | DEFINE_EVENT(block_rq_completion, block_rq_complete, | |
148 | ||
149 | TP_PROTO(struct request *rq, blk_status_t error, unsigned int nr_bytes), | |
150 | ||
151 | TP_ARGS(rq, error, nr_bytes) | |
152 | ); | |
153 | ||
154 | /** | |
155 | * block_rq_error - block IO operation error reported by device driver | |
156 | * @rq: block operations request | |
157 | * @error: status code | |
158 | * @nr_bytes: number of completed bytes | |
159 | * | |
160 | * The block_rq_error tracepoint event indicates that some portion | |
161 | * of operation request has failed as reported by the device driver. | |
162 | */ | |
163 | DEFINE_EVENT(block_rq_completion, block_rq_error, | |
164 | ||
165 | TP_PROTO(struct request *rq, blk_status_t error, unsigned int nr_bytes), | |
166 | ||
167 | TP_ARGS(rq, error, nr_bytes) | |
168 | ); | |
169 | ||
77ca1e02 | 170 | DECLARE_EVENT_CLASS(block_rq, |
55782138 | 171 | |
a54895fa | 172 | TP_PROTO(struct request *rq), |
55782138 | 173 | |
a54895fa | 174 | TP_ARGS(rq), |
55782138 LZ |
175 | |
176 | TP_STRUCT__entry( | |
177 | __field( dev_t, dev ) | |
178 | __field( sector_t, sector ) | |
179 | __field( unsigned int, nr_sector ) | |
180 | __field( unsigned int, bytes ) | |
c09c47ca | 181 | __array( char, rwbs, RWBS_LEN ) |
77ca1e02 | 182 | __array( char, comm, TASK_COMM_LEN ) |
48b77ad6 | 183 | __dynamic_array( char, cmd, 1 ) |
55782138 LZ |
184 | ), |
185 | ||
186 | TP_fast_assign( | |
f3fa33ac | 187 | __entry->dev = rq->q->disk ? disk_devt(rq->q->disk) : 0; |
48b77ad6 CH |
188 | __entry->sector = blk_rq_trace_sector(rq); |
189 | __entry->nr_sector = blk_rq_trace_nr_sectors(rq); | |
190 | __entry->bytes = blk_rq_bytes(rq); | |
55782138 | 191 | |
179d1600 | 192 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags); |
48b77ad6 | 193 | __get_str(cmd)[0] = '\0'; |
55782138 LZ |
194 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
195 | ), | |
196 | ||
197 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
198 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
199 | __entry->rwbs, __entry->bytes, __get_str(cmd), | |
6556d1df SR |
200 | (unsigned long long)__entry->sector, |
201 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
202 | ); |
203 | ||
881245dc WC |
204 | /** |
205 | * block_rq_insert - insert block operation request into queue | |
881245dc WC |
206 | * @rq: block IO operation request |
207 | * | |
208 | * Called immediately before block operation request @rq is inserted | |
209 | * into queue @q. The fields in the operation request @rq struct can | |
210 | * be examined to determine which device and sectors the pending | |
211 | * operation would access. | |
212 | */ | |
77ca1e02 | 213 | DEFINE_EVENT(block_rq, block_rq_insert, |
55782138 | 214 | |
a54895fa | 215 | TP_PROTO(struct request *rq), |
55782138 | 216 | |
a54895fa | 217 | TP_ARGS(rq) |
55782138 LZ |
218 | ); |
219 | ||
881245dc WC |
220 | /** |
221 | * block_rq_issue - issue pending block IO request operation to device driver | |
c7ff6519 | 222 | * @rq: block IO operation request |
881245dc WC |
223 | * |
224 | * Called when block operation request @rq from queue @q is sent to a | |
225 | * device driver for processing. | |
226 | */ | |
77ca1e02 | 227 | DEFINE_EVENT(block_rq, block_rq_issue, |
55782138 | 228 | |
a54895fa | 229 | TP_PROTO(struct request *rq), |
55782138 | 230 | |
a54895fa | 231 | TP_ARGS(rq) |
55782138 | 232 | ); |
fe63b94a | 233 | |
f3bdc62f JK |
234 | /** |
235 | * block_rq_merge - merge request with another one in the elevator | |
b0719245 | 236 | * @rq: block IO operation request |
f3bdc62f JK |
237 | * |
238 | * Called when block operation request @rq from queue @q is merged to another | |
239 | * request queued in the elevator. | |
240 | */ | |
241 | DEFINE_EVENT(block_rq, block_rq_merge, | |
242 | ||
a54895fa | 243 | TP_PROTO(struct request *rq), |
f3bdc62f | 244 | |
a54895fa | 245 | TP_ARGS(rq) |
f3bdc62f JK |
246 | ); |
247 | ||
5a80bd07 HC |
248 | /** |
249 | * block_io_start - insert a request for execution | |
250 | * @rq: block IO operation request | |
251 | * | |
252 | * Called when block operation request @rq is queued for execution | |
253 | */ | |
254 | DEFINE_EVENT(block_rq, block_io_start, | |
255 | ||
256 | TP_PROTO(struct request *rq), | |
257 | ||
258 | TP_ARGS(rq) | |
259 | ); | |
260 | ||
261 | /** | |
262 | * block_io_done - block IO operation request completed | |
263 | * @rq: block IO operation request | |
264 | * | |
265 | * Called when block operation request @rq is completed | |
266 | */ | |
267 | DEFINE_EVENT(block_rq, block_io_done, | |
268 | ||
269 | TP_PROTO(struct request *rq), | |
270 | ||
271 | TP_ARGS(rq) | |
272 | ); | |
273 | ||
881245dc WC |
274 | /** |
275 | * block_bio_complete - completed all work on the block operation | |
0a82a8d1 | 276 | * @q: queue holding the block operation |
881245dc WC |
277 | * @bio: block operation completed |
278 | * | |
279 | * This tracepoint indicates there is no further work to do on this | |
280 | * block IO operation @bio. | |
281 | */ | |
55782138 LZ |
282 | TRACE_EVENT(block_bio_complete, |
283 | ||
d24de76a | 284 | TP_PROTO(struct request_queue *q, struct bio *bio), |
55782138 | 285 | |
d24de76a | 286 | TP_ARGS(q, bio), |
55782138 LZ |
287 | |
288 | TP_STRUCT__entry( | |
289 | __field( dev_t, dev ) | |
290 | __field( sector_t, sector ) | |
291 | __field( unsigned, nr_sector ) | |
292 | __field( int, error ) | |
c09c47ca | 293 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
294 | ), |
295 | ||
296 | TP_fast_assign( | |
74d46992 | 297 | __entry->dev = bio_dev(bio); |
4f024f37 | 298 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 299 | __entry->nr_sector = bio_sectors(bio); |
d24de76a | 300 | __entry->error = blk_status_to_errno(bio->bi_status); |
179d1600 | 301 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf); |
55782138 LZ |
302 | ), |
303 | ||
304 | TP_printk("%d,%d %s %llu + %u [%d]", | |
305 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
306 | (unsigned long long)__entry->sector, |
307 | __entry->nr_sector, __entry->error) | |
55782138 LZ |
308 | ); |
309 | ||
e8a676d6 | 310 | DECLARE_EVENT_CLASS(block_bio, |
55782138 | 311 | |
e8a676d6 | 312 | TP_PROTO(struct bio *bio), |
55782138 | 313 | |
e8a676d6 | 314 | TP_ARGS(bio), |
55782138 LZ |
315 | |
316 | TP_STRUCT__entry( | |
317 | __field( dev_t, dev ) | |
318 | __field( sector_t, sector ) | |
319 | __field( unsigned int, nr_sector ) | |
c09c47ca | 320 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
321 | __array( char, comm, TASK_COMM_LEN ) |
322 | ), | |
323 | ||
324 | TP_fast_assign( | |
74d46992 | 325 | __entry->dev = bio_dev(bio); |
4f024f37 | 326 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 327 | __entry->nr_sector = bio_sectors(bio); |
179d1600 | 328 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf); |
55782138 LZ |
329 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
330 | ), | |
331 | ||
332 | TP_printk("%d,%d %s %llu + %u [%s]", | |
333 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
334 | (unsigned long long)__entry->sector, |
335 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
336 | ); |
337 | ||
e8a676d6 CH |
338 | /** |
339 | * block_bio_bounce - used bounce buffer when processing block operation | |
340 | * @bio: block operation | |
341 | * | |
342 | * A bounce buffer was used to handle the block operation @bio in @q. | |
343 | * This occurs when hardware limitations prevent a direct transfer of | |
344 | * data between the @bio data memory area and the IO device. Use of a | |
345 | * bounce buffer requires extra copying of data and decreases | |
346 | * performance. | |
347 | */ | |
348 | DEFINE_EVENT(block_bio, block_bio_bounce, | |
349 | TP_PROTO(struct bio *bio), | |
350 | TP_ARGS(bio) | |
351 | ); | |
352 | ||
881245dc WC |
353 | /** |
354 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
881245dc WC |
355 | * @bio: new block operation to merge |
356 | * | |
e8a676d6 | 357 | * Merging block request @bio to the end of an existing block request. |
881245dc | 358 | */ |
e8a676d6 CH |
359 | DEFINE_EVENT(block_bio, block_bio_backmerge, |
360 | TP_PROTO(struct bio *bio), | |
361 | TP_ARGS(bio) | |
55782138 LZ |
362 | ); |
363 | ||
881245dc WC |
364 | /** |
365 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
881245dc WC |
366 | * @bio: new block operation to merge |
367 | * | |
e8a676d6 | 368 | * Merging block IO operation @bio to the beginning of an existing block request. |
881245dc | 369 | */ |
e8a676d6 CH |
370 | DEFINE_EVENT(block_bio, block_bio_frontmerge, |
371 | TP_PROTO(struct bio *bio), | |
372 | TP_ARGS(bio) | |
77ca1e02 | 373 | ); |
55782138 | 374 | |
881245dc WC |
375 | /** |
376 | * block_bio_queue - putting new block IO operation in queue | |
881245dc WC |
377 | * @bio: new block operation |
378 | * | |
379 | * About to place the block IO operation @bio into queue @q. | |
380 | */ | |
e8a676d6 CH |
381 | DEFINE_EVENT(block_bio, block_bio_queue, |
382 | TP_PROTO(struct bio *bio), | |
383 | TP_ARGS(bio) | |
55782138 LZ |
384 | ); |
385 | ||
881245dc WC |
386 | /** |
387 | * block_getrq - get a free request entry in queue for block IO operations | |
f8e9ec16 | 388 | * @bio: pending block IO operation (can be %NULL) |
881245dc | 389 | * |
e8a676d6 | 390 | * A request struct has been allocated to handle the block IO operation @bio. |
881245dc | 391 | */ |
e8a676d6 CH |
392 | DEFINE_EVENT(block_bio, block_getrq, |
393 | TP_PROTO(struct bio *bio), | |
394 | TP_ARGS(bio) | |
77ca1e02 | 395 | ); |
55782138 | 396 | |
881245dc WC |
397 | /** |
398 | * block_plug - keep operations requests in request queue | |
399 | * @q: request queue to plug | |
400 | * | |
401 | * Plug the request queue @q. Do not allow block operation requests | |
402 | * to be sent to the device driver. Instead, accumulate requests in | |
403 | * the queue to improve throughput performance of the block device. | |
404 | */ | |
55782138 LZ |
405 | TRACE_EVENT(block_plug, |
406 | ||
407 | TP_PROTO(struct request_queue *q), | |
408 | ||
409 | TP_ARGS(q), | |
410 | ||
411 | TP_STRUCT__entry( | |
412 | __array( char, comm, TASK_COMM_LEN ) | |
413 | ), | |
414 | ||
415 | TP_fast_assign( | |
416 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); | |
417 | ), | |
418 | ||
419 | TP_printk("[%s]", __entry->comm) | |
420 | ); | |
421 | ||
77ca1e02 | 422 | DECLARE_EVENT_CLASS(block_unplug, |
55782138 | 423 | |
49cac01e | 424 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 425 | |
49cac01e | 426 | TP_ARGS(q, depth, explicit), |
55782138 LZ |
427 | |
428 | TP_STRUCT__entry( | |
429 | __field( int, nr_rq ) | |
430 | __array( char, comm, TASK_COMM_LEN ) | |
431 | ), | |
432 | ||
433 | TP_fast_assign( | |
94b5eb28 | 434 | __entry->nr_rq = depth; |
55782138 LZ |
435 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
436 | ), | |
437 | ||
438 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
439 | ); | |
440 | ||
881245dc | 441 | /** |
49cac01e | 442 | * block_unplug - release of operations requests in request queue |
881245dc | 443 | * @q: request queue to unplug |
94b5eb28 | 444 | * @depth: number of requests just added to the queue |
49cac01e | 445 | * @explicit: whether this was an explicit unplug, or one from schedule() |
881245dc WC |
446 | * |
447 | * Unplug request queue @q because device driver is scheduled to work | |
448 | * on elements in the request queue. | |
449 | */ | |
49cac01e | 450 | DEFINE_EVENT(block_unplug, block_unplug, |
55782138 | 451 | |
49cac01e | 452 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 453 | |
49cac01e | 454 | TP_ARGS(q, depth, explicit) |
55782138 LZ |
455 | ); |
456 | ||
881245dc WC |
457 | /** |
458 | * block_split - split a single bio struct into two bio structs | |
881245dc WC |
459 | * @bio: block operation being split |
460 | * @new_sector: The starting sector for the new bio | |
461 | * | |
eb6f7f7c CH |
462 | * The bio request @bio needs to be split into two bio requests. The newly |
463 | * created @bio request starts at @new_sector. This split may be required due to | |
464 | * hardware limitations such as operation crossing device boundaries in a RAID | |
465 | * system. | |
881245dc | 466 | */ |
55782138 LZ |
467 | TRACE_EVENT(block_split, |
468 | ||
eb6f7f7c | 469 | TP_PROTO(struct bio *bio, unsigned int new_sector), |
55782138 | 470 | |
eb6f7f7c | 471 | TP_ARGS(bio, new_sector), |
55782138 LZ |
472 | |
473 | TP_STRUCT__entry( | |
474 | __field( dev_t, dev ) | |
475 | __field( sector_t, sector ) | |
476 | __field( sector_t, new_sector ) | |
c09c47ca | 477 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
478 | __array( char, comm, TASK_COMM_LEN ) |
479 | ), | |
480 | ||
481 | TP_fast_assign( | |
74d46992 | 482 | __entry->dev = bio_dev(bio); |
4f024f37 | 483 | __entry->sector = bio->bi_iter.bi_sector; |
55782138 | 484 | __entry->new_sector = new_sector; |
179d1600 | 485 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf); |
55782138 LZ |
486 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
487 | ), | |
488 | ||
489 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
490 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
491 | (unsigned long long)__entry->sector, |
492 | (unsigned long long)__entry->new_sector, | |
493 | __entry->comm) | |
55782138 LZ |
494 | ); |
495 | ||
881245dc | 496 | /** |
d07335e5 | 497 | * block_bio_remap - map request for a logical device to the raw device |
881245dc | 498 | * @bio: revised operation |
1c02fca6 | 499 | * @dev: original device for the operation |
881245dc WC |
500 | * @from: original sector for the operation |
501 | * | |
d07335e5 | 502 | * An operation for a logical device has been mapped to the |
881245dc WC |
503 | * raw block device. |
504 | */ | |
d07335e5 | 505 | TRACE_EVENT(block_bio_remap, |
55782138 | 506 | |
1c02fca6 | 507 | TP_PROTO(struct bio *bio, dev_t dev, sector_t from), |
55782138 | 508 | |
1c02fca6 | 509 | TP_ARGS(bio, dev, from), |
55782138 LZ |
510 | |
511 | TP_STRUCT__entry( | |
512 | __field( dev_t, dev ) | |
513 | __field( sector_t, sector ) | |
514 | __field( unsigned int, nr_sector ) | |
515 | __field( dev_t, old_dev ) | |
516 | __field( sector_t, old_sector ) | |
c09c47ca | 517 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
518 | ), |
519 | ||
520 | TP_fast_assign( | |
74d46992 | 521 | __entry->dev = bio_dev(bio); |
4f024f37 | 522 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 523 | __entry->nr_sector = bio_sectors(bio); |
55782138 LZ |
524 | __entry->old_dev = dev; |
525 | __entry->old_sector = from; | |
179d1600 | 526 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf); |
55782138 LZ |
527 | ), |
528 | ||
529 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
530 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
531 | (unsigned long long)__entry->sector, |
532 | __entry->nr_sector, | |
55782138 | 533 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), |
6556d1df | 534 | (unsigned long long)__entry->old_sector) |
55782138 LZ |
535 | ); |
536 | ||
881245dc WC |
537 | /** |
538 | * block_rq_remap - map request for a block operation request | |
881245dc WC |
539 | * @rq: block IO operation request |
540 | * @dev: device for the operation | |
541 | * @from: original sector for the operation | |
542 | * | |
543 | * The block operation request @rq in @q has been remapped. The block | |
544 | * operation request @rq holds the current information and @from hold | |
545 | * the original sector. | |
546 | */ | |
b0da3f0d JN |
547 | TRACE_EVENT(block_rq_remap, |
548 | ||
a54895fa | 549 | TP_PROTO(struct request *rq, dev_t dev, sector_t from), |
b0da3f0d | 550 | |
a54895fa | 551 | TP_ARGS(rq, dev, from), |
b0da3f0d JN |
552 | |
553 | TP_STRUCT__entry( | |
554 | __field( dev_t, dev ) | |
555 | __field( sector_t, sector ) | |
556 | __field( unsigned int, nr_sector ) | |
557 | __field( dev_t, old_dev ) | |
558 | __field( sector_t, old_sector ) | |
75afb352 | 559 | __field( unsigned int, nr_bios ) |
c09c47ca | 560 | __array( char, rwbs, RWBS_LEN) |
b0da3f0d JN |
561 | ), |
562 | ||
563 | TP_fast_assign( | |
f3fa33ac | 564 | __entry->dev = disk_devt(rq->q->disk); |
b0da3f0d JN |
565 | __entry->sector = blk_rq_pos(rq); |
566 | __entry->nr_sector = blk_rq_sectors(rq); | |
567 | __entry->old_dev = dev; | |
568 | __entry->old_sector = from; | |
75afb352 | 569 | __entry->nr_bios = blk_rq_count_bios(rq); |
179d1600 | 570 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags); |
b0da3f0d JN |
571 | ), |
572 | ||
75afb352 | 573 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", |
b0da3f0d JN |
574 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, |
575 | (unsigned long long)__entry->sector, | |
576 | __entry->nr_sector, | |
577 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
75afb352 | 578 | (unsigned long long)__entry->old_sector, __entry->nr_bios) |
b0da3f0d JN |
579 | ); |
580 | ||
55782138 LZ |
581 | #endif /* _TRACE_BLOCK_H */ |
582 | ||
583 | /* This part must be outside protection */ | |
584 | #include <trace/define_trace.h> | |
585 |