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( | |
88 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
48b77ad6 CH |
89 | __entry->sector = blk_rq_trace_sector(rq); |
90 | __entry->nr_sector = blk_rq_trace_nr_sectors(rq); | |
55782138 | 91 | |
ef295ecf | 92 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
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 | ||
881245dc WC |
103 | /** |
104 | * block_rq_complete - block IO operation completed by device driver | |
881245dc | 105 | * @rq: block operations request |
caf7df12 | 106 | * @error: status code |
af5040da | 107 | * @nr_bytes: number of completed bytes |
881245dc WC |
108 | * |
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. | |
114 | */ | |
af5040da | 115 | TRACE_EVENT(block_rq_complete, |
77ca1e02 | 116 | |
caf7df12 | 117 | TP_PROTO(struct request *rq, int error, unsigned int nr_bytes), |
77ca1e02 | 118 | |
caf7df12 | 119 | TP_ARGS(rq, error, nr_bytes), |
af5040da RP |
120 | |
121 | TP_STRUCT__entry( | |
122 | __field( dev_t, dev ) | |
123 | __field( sector_t, sector ) | |
124 | __field( unsigned int, nr_sector ) | |
caf7df12 | 125 | __field( int, error ) |
af5040da | 126 | __array( char, rwbs, RWBS_LEN ) |
48b77ad6 | 127 | __dynamic_array( char, cmd, 1 ) |
af5040da RP |
128 | ), |
129 | ||
130 | TP_fast_assign( | |
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; | |
caf7df12 | 134 | __entry->error = error; |
af5040da | 135 | |
ef295ecf | 136 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes); |
48b77ad6 | 137 | __get_str(cmd)[0] = '\0'; |
af5040da RP |
138 | ), |
139 | ||
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, | |
caf7df12 | 144 | __entry->nr_sector, __entry->error) |
55782138 LZ |
145 | ); |
146 | ||
77ca1e02 | 147 | DECLARE_EVENT_CLASS(block_rq, |
55782138 | 148 | |
a54895fa | 149 | TP_PROTO(struct request *rq), |
55782138 | 150 | |
a54895fa | 151 | TP_ARGS(rq), |
55782138 LZ |
152 | |
153 | TP_STRUCT__entry( | |
154 | __field( dev_t, dev ) | |
155 | __field( sector_t, sector ) | |
156 | __field( unsigned int, nr_sector ) | |
157 | __field( unsigned int, bytes ) | |
c09c47ca | 158 | __array( char, rwbs, RWBS_LEN ) |
77ca1e02 | 159 | __array( char, comm, TASK_COMM_LEN ) |
48b77ad6 | 160 | __dynamic_array( char, cmd, 1 ) |
55782138 LZ |
161 | ), |
162 | ||
163 | TP_fast_assign( | |
164 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
48b77ad6 CH |
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); | |
55782138 | 168 | |
ef295ecf | 169 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
48b77ad6 | 170 | __get_str(cmd)[0] = '\0'; |
55782138 LZ |
171 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
172 | ), | |
173 | ||
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), | |
6556d1df SR |
177 | (unsigned long long)__entry->sector, |
178 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
179 | ); |
180 | ||
881245dc WC |
181 | /** |
182 | * block_rq_insert - insert block operation request into queue | |
881245dc WC |
183 | * @rq: block IO operation request |
184 | * | |
185 | * Called immediately before block operation request @rq is inserted | |
186 | * into queue @q. The fields in the operation request @rq struct can | |
187 | * be examined to determine which device and sectors the pending | |
188 | * operation would access. | |
189 | */ | |
77ca1e02 | 190 | DEFINE_EVENT(block_rq, block_rq_insert, |
55782138 | 191 | |
a54895fa | 192 | TP_PROTO(struct request *rq), |
55782138 | 193 | |
a54895fa | 194 | TP_ARGS(rq) |
55782138 LZ |
195 | ); |
196 | ||
881245dc WC |
197 | /** |
198 | * block_rq_issue - issue pending block IO request operation to device driver | |
881245dc WC |
199 | * @rq: block IO operation operation request |
200 | * | |
201 | * Called when block operation request @rq from queue @q is sent to a | |
202 | * device driver for processing. | |
203 | */ | |
77ca1e02 | 204 | DEFINE_EVENT(block_rq, block_rq_issue, |
55782138 | 205 | |
a54895fa | 206 | TP_PROTO(struct request *rq), |
55782138 | 207 | |
a54895fa | 208 | TP_ARGS(rq) |
55782138 | 209 | ); |
fe63b94a | 210 | |
f3bdc62f JK |
211 | /** |
212 | * block_rq_merge - merge request with another one in the elevator | |
f3bdc62f JK |
213 | * @rq: block IO operation operation request |
214 | * | |
215 | * Called when block operation request @rq from queue @q is merged to another | |
216 | * request queued in the elevator. | |
217 | */ | |
218 | DEFINE_EVENT(block_rq, block_rq_merge, | |
219 | ||
a54895fa | 220 | TP_PROTO(struct request *rq), |
f3bdc62f | 221 | |
a54895fa | 222 | TP_ARGS(rq) |
f3bdc62f JK |
223 | ); |
224 | ||
881245dc WC |
225 | /** |
226 | * block_bio_complete - completed all work on the block operation | |
0a82a8d1 | 227 | * @q: queue holding the block operation |
881245dc WC |
228 | * @bio: block operation completed |
229 | * | |
230 | * This tracepoint indicates there is no further work to do on this | |
231 | * block IO operation @bio. | |
232 | */ | |
55782138 LZ |
233 | TRACE_EVENT(block_bio_complete, |
234 | ||
d24de76a | 235 | TP_PROTO(struct request_queue *q, struct bio *bio), |
55782138 | 236 | |
d24de76a | 237 | TP_ARGS(q, bio), |
55782138 LZ |
238 | |
239 | TP_STRUCT__entry( | |
240 | __field( dev_t, dev ) | |
241 | __field( sector_t, sector ) | |
242 | __field( unsigned, nr_sector ) | |
243 | __field( int, error ) | |
c09c47ca | 244 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
245 | ), |
246 | ||
247 | TP_fast_assign( | |
74d46992 | 248 | __entry->dev = bio_dev(bio); |
4f024f37 | 249 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 250 | __entry->nr_sector = bio_sectors(bio); |
d24de76a | 251 | __entry->error = blk_status_to_errno(bio->bi_status); |
ef295ecf | 252 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
253 | ), |
254 | ||
255 | TP_printk("%d,%d %s %llu + %u [%d]", | |
256 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
257 | (unsigned long long)__entry->sector, |
258 | __entry->nr_sector, __entry->error) | |
55782138 LZ |
259 | ); |
260 | ||
e8a676d6 | 261 | DECLARE_EVENT_CLASS(block_bio, |
55782138 | 262 | |
e8a676d6 | 263 | TP_PROTO(struct bio *bio), |
55782138 | 264 | |
e8a676d6 | 265 | TP_ARGS(bio), |
55782138 LZ |
266 | |
267 | TP_STRUCT__entry( | |
268 | __field( dev_t, dev ) | |
269 | __field( sector_t, sector ) | |
270 | __field( unsigned int, nr_sector ) | |
c09c47ca | 271 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
272 | __array( char, comm, TASK_COMM_LEN ) |
273 | ), | |
274 | ||
275 | TP_fast_assign( | |
74d46992 | 276 | __entry->dev = bio_dev(bio); |
4f024f37 | 277 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 278 | __entry->nr_sector = bio_sectors(bio); |
ef295ecf | 279 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
280 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
281 | ), | |
282 | ||
283 | TP_printk("%d,%d %s %llu + %u [%s]", | |
284 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
285 | (unsigned long long)__entry->sector, |
286 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
287 | ); |
288 | ||
e8a676d6 CH |
289 | /** |
290 | * block_bio_bounce - used bounce buffer when processing block operation | |
291 | * @bio: block operation | |
292 | * | |
293 | * A bounce buffer was used to handle the block operation @bio in @q. | |
294 | * This occurs when hardware limitations prevent a direct transfer of | |
295 | * data between the @bio data memory area and the IO device. Use of a | |
296 | * bounce buffer requires extra copying of data and decreases | |
297 | * performance. | |
298 | */ | |
299 | DEFINE_EVENT(block_bio, block_bio_bounce, | |
300 | TP_PROTO(struct bio *bio), | |
301 | TP_ARGS(bio) | |
302 | ); | |
303 | ||
881245dc WC |
304 | /** |
305 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
881245dc WC |
306 | * @bio: new block operation to merge |
307 | * | |
e8a676d6 | 308 | * Merging block request @bio to the end of an existing block request. |
881245dc | 309 | */ |
e8a676d6 CH |
310 | DEFINE_EVENT(block_bio, block_bio_backmerge, |
311 | TP_PROTO(struct bio *bio), | |
312 | TP_ARGS(bio) | |
55782138 LZ |
313 | ); |
314 | ||
881245dc WC |
315 | /** |
316 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
881245dc WC |
317 | * @bio: new block operation to merge |
318 | * | |
e8a676d6 | 319 | * Merging block IO operation @bio to the beginning of an existing block request. |
881245dc | 320 | */ |
e8a676d6 CH |
321 | DEFINE_EVENT(block_bio, block_bio_frontmerge, |
322 | TP_PROTO(struct bio *bio), | |
323 | TP_ARGS(bio) | |
77ca1e02 | 324 | ); |
55782138 | 325 | |
881245dc WC |
326 | /** |
327 | * block_bio_queue - putting new block IO operation in queue | |
881245dc WC |
328 | * @bio: new block operation |
329 | * | |
330 | * About to place the block IO operation @bio into queue @q. | |
331 | */ | |
e8a676d6 CH |
332 | DEFINE_EVENT(block_bio, block_bio_queue, |
333 | TP_PROTO(struct bio *bio), | |
334 | TP_ARGS(bio) | |
55782138 LZ |
335 | ); |
336 | ||
881245dc WC |
337 | /** |
338 | * block_getrq - get a free request entry in queue for block IO operations | |
f8e9ec16 | 339 | * @bio: pending block IO operation (can be %NULL) |
881245dc | 340 | * |
e8a676d6 | 341 | * A request struct has been allocated to handle the block IO operation @bio. |
881245dc | 342 | */ |
e8a676d6 CH |
343 | DEFINE_EVENT(block_bio, block_getrq, |
344 | TP_PROTO(struct bio *bio), | |
345 | TP_ARGS(bio) | |
77ca1e02 | 346 | ); |
55782138 | 347 | |
881245dc WC |
348 | /** |
349 | * block_plug - keep operations requests in request queue | |
350 | * @q: request queue to plug | |
351 | * | |
352 | * Plug the request queue @q. Do not allow block operation requests | |
353 | * to be sent to the device driver. Instead, accumulate requests in | |
354 | * the queue to improve throughput performance of the block device. | |
355 | */ | |
55782138 LZ |
356 | TRACE_EVENT(block_plug, |
357 | ||
358 | TP_PROTO(struct request_queue *q), | |
359 | ||
360 | TP_ARGS(q), | |
361 | ||
362 | TP_STRUCT__entry( | |
363 | __array( char, comm, TASK_COMM_LEN ) | |
364 | ), | |
365 | ||
366 | TP_fast_assign( | |
367 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); | |
368 | ), | |
369 | ||
370 | TP_printk("[%s]", __entry->comm) | |
371 | ); | |
372 | ||
77ca1e02 | 373 | DECLARE_EVENT_CLASS(block_unplug, |
55782138 | 374 | |
49cac01e | 375 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 376 | |
49cac01e | 377 | TP_ARGS(q, depth, explicit), |
55782138 LZ |
378 | |
379 | TP_STRUCT__entry( | |
380 | __field( int, nr_rq ) | |
381 | __array( char, comm, TASK_COMM_LEN ) | |
382 | ), | |
383 | ||
384 | TP_fast_assign( | |
94b5eb28 | 385 | __entry->nr_rq = depth; |
55782138 LZ |
386 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
387 | ), | |
388 | ||
389 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
390 | ); | |
391 | ||
881245dc | 392 | /** |
49cac01e | 393 | * block_unplug - release of operations requests in request queue |
881245dc | 394 | * @q: request queue to unplug |
94b5eb28 | 395 | * @depth: number of requests just added to the queue |
49cac01e | 396 | * @explicit: whether this was an explicit unplug, or one from schedule() |
881245dc WC |
397 | * |
398 | * Unplug request queue @q because device driver is scheduled to work | |
399 | * on elements in the request queue. | |
400 | */ | |
49cac01e | 401 | DEFINE_EVENT(block_unplug, block_unplug, |
55782138 | 402 | |
49cac01e | 403 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 404 | |
49cac01e | 405 | TP_ARGS(q, depth, explicit) |
55782138 LZ |
406 | ); |
407 | ||
881245dc WC |
408 | /** |
409 | * block_split - split a single bio struct into two bio structs | |
881245dc WC |
410 | * @bio: block operation being split |
411 | * @new_sector: The starting sector for the new bio | |
412 | * | |
eb6f7f7c CH |
413 | * The bio request @bio needs to be split into two bio requests. The newly |
414 | * created @bio request starts at @new_sector. This split may be required due to | |
415 | * hardware limitations such as operation crossing device boundaries in a RAID | |
416 | * system. | |
881245dc | 417 | */ |
55782138 LZ |
418 | TRACE_EVENT(block_split, |
419 | ||
eb6f7f7c | 420 | TP_PROTO(struct bio *bio, unsigned int new_sector), |
55782138 | 421 | |
eb6f7f7c | 422 | TP_ARGS(bio, new_sector), |
55782138 LZ |
423 | |
424 | TP_STRUCT__entry( | |
425 | __field( dev_t, dev ) | |
426 | __field( sector_t, sector ) | |
427 | __field( sector_t, new_sector ) | |
c09c47ca | 428 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
429 | __array( char, comm, TASK_COMM_LEN ) |
430 | ), | |
431 | ||
432 | TP_fast_assign( | |
74d46992 | 433 | __entry->dev = bio_dev(bio); |
4f024f37 | 434 | __entry->sector = bio->bi_iter.bi_sector; |
55782138 | 435 | __entry->new_sector = new_sector; |
ef295ecf | 436 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
437 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
438 | ), | |
439 | ||
440 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
441 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
442 | (unsigned long long)__entry->sector, |
443 | (unsigned long long)__entry->new_sector, | |
444 | __entry->comm) | |
55782138 LZ |
445 | ); |
446 | ||
881245dc | 447 | /** |
d07335e5 | 448 | * block_bio_remap - map request for a logical device to the raw device |
881245dc | 449 | * @bio: revised operation |
1c02fca6 | 450 | * @dev: original device for the operation |
881245dc WC |
451 | * @from: original sector for the operation |
452 | * | |
d07335e5 | 453 | * An operation for a logical device has been mapped to the |
881245dc WC |
454 | * raw block device. |
455 | */ | |
d07335e5 | 456 | TRACE_EVENT(block_bio_remap, |
55782138 | 457 | |
1c02fca6 | 458 | TP_PROTO(struct bio *bio, dev_t dev, sector_t from), |
55782138 | 459 | |
1c02fca6 | 460 | TP_ARGS(bio, dev, from), |
55782138 LZ |
461 | |
462 | TP_STRUCT__entry( | |
463 | __field( dev_t, dev ) | |
464 | __field( sector_t, sector ) | |
465 | __field( unsigned int, nr_sector ) | |
466 | __field( dev_t, old_dev ) | |
467 | __field( sector_t, old_sector ) | |
c09c47ca | 468 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
469 | ), |
470 | ||
471 | TP_fast_assign( | |
74d46992 | 472 | __entry->dev = bio_dev(bio); |
4f024f37 | 473 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 474 | __entry->nr_sector = bio_sectors(bio); |
55782138 LZ |
475 | __entry->old_dev = dev; |
476 | __entry->old_sector = from; | |
ef295ecf | 477 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
478 | ), |
479 | ||
480 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
481 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
482 | (unsigned long long)__entry->sector, |
483 | __entry->nr_sector, | |
55782138 | 484 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), |
6556d1df | 485 | (unsigned long long)__entry->old_sector) |
55782138 LZ |
486 | ); |
487 | ||
881245dc WC |
488 | /** |
489 | * block_rq_remap - map request for a block operation request | |
881245dc WC |
490 | * @rq: block IO operation request |
491 | * @dev: device for the operation | |
492 | * @from: original sector for the operation | |
493 | * | |
494 | * The block operation request @rq in @q has been remapped. The block | |
495 | * operation request @rq holds the current information and @from hold | |
496 | * the original sector. | |
497 | */ | |
b0da3f0d JN |
498 | TRACE_EVENT(block_rq_remap, |
499 | ||
a54895fa | 500 | TP_PROTO(struct request *rq, dev_t dev, sector_t from), |
b0da3f0d | 501 | |
a54895fa | 502 | TP_ARGS(rq, dev, from), |
b0da3f0d JN |
503 | |
504 | TP_STRUCT__entry( | |
505 | __field( dev_t, dev ) | |
506 | __field( sector_t, sector ) | |
507 | __field( unsigned int, nr_sector ) | |
508 | __field( dev_t, old_dev ) | |
509 | __field( sector_t, old_sector ) | |
75afb352 | 510 | __field( unsigned int, nr_bios ) |
c09c47ca | 511 | __array( char, rwbs, RWBS_LEN) |
b0da3f0d JN |
512 | ), |
513 | ||
514 | TP_fast_assign( | |
515 | __entry->dev = disk_devt(rq->rq_disk); | |
516 | __entry->sector = blk_rq_pos(rq); | |
517 | __entry->nr_sector = blk_rq_sectors(rq); | |
518 | __entry->old_dev = dev; | |
519 | __entry->old_sector = from; | |
75afb352 | 520 | __entry->nr_bios = blk_rq_count_bios(rq); |
ef295ecf | 521 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
b0da3f0d JN |
522 | ), |
523 | ||
75afb352 | 524 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", |
b0da3f0d JN |
525 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, |
526 | (unsigned long long)__entry->sector, | |
527 | __entry->nr_sector, | |
528 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
75afb352 | 529 | (unsigned long long)__entry->old_sector, __entry->nr_bios) |
b0da3f0d JN |
530 | ); |
531 | ||
55782138 LZ |
532 | #endif /* _TRACE_BLOCK_H */ |
533 | ||
534 | /* This part must be outside protection */ | |
535 | #include <trace/define_trace.h> | |
536 |