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 | |
67 | * @q: queue holding operation | |
68 | * @rq: block IO operation request | |
69 | * | |
70 | * The block operation request @rq is being placed back into queue | |
71 | * @q. For some reason the request was not completed and needs to be | |
72 | * put back in the queue. | |
73 | */ | |
74 | TRACE_EVENT(block_rq_requeue, | |
55782138 LZ |
75 | |
76 | TP_PROTO(struct request_queue *q, struct request *rq), | |
77 | ||
78 | TP_ARGS(q, rq), | |
79 | ||
80 | TP_STRUCT__entry( | |
81 | __field( dev_t, dev ) | |
82 | __field( sector_t, sector ) | |
83 | __field( unsigned int, nr_sector ) | |
c09c47ca | 84 | __array( char, rwbs, RWBS_LEN ) |
48b77ad6 | 85 | __dynamic_array( char, cmd, 1 ) |
55782138 LZ |
86 | ), |
87 | ||
88 | TP_fast_assign( | |
89 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
48b77ad6 CH |
90 | __entry->sector = blk_rq_trace_sector(rq); |
91 | __entry->nr_sector = blk_rq_trace_nr_sectors(rq); | |
55782138 | 92 | |
ef295ecf | 93 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
48b77ad6 | 94 | __get_str(cmd)[0] = '\0'; |
55782138 LZ |
95 | ), |
96 | ||
97 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
98 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
99 | __entry->rwbs, __get_str(cmd), | |
6556d1df | 100 | (unsigned long long)__entry->sector, |
caf7df12 | 101 | __entry->nr_sector, 0) |
55782138 LZ |
102 | ); |
103 | ||
881245dc WC |
104 | /** |
105 | * block_rq_complete - block IO operation completed by device driver | |
881245dc | 106 | * @rq: block operations request |
caf7df12 | 107 | * @error: status code |
af5040da | 108 | * @nr_bytes: number of completed bytes |
881245dc WC |
109 | * |
110 | * The block_rq_complete tracepoint event indicates that some portion | |
111 | * of operation request has been completed by the device driver. If | |
112 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
113 | * do for the request. If @rq->bio is non-NULL then there is | |
114 | * additional work required to complete the request. | |
115 | */ | |
af5040da | 116 | TRACE_EVENT(block_rq_complete, |
77ca1e02 | 117 | |
caf7df12 | 118 | TP_PROTO(struct request *rq, int error, unsigned int nr_bytes), |
77ca1e02 | 119 | |
caf7df12 | 120 | TP_ARGS(rq, error, nr_bytes), |
af5040da RP |
121 | |
122 | TP_STRUCT__entry( | |
123 | __field( dev_t, dev ) | |
124 | __field( sector_t, sector ) | |
125 | __field( unsigned int, nr_sector ) | |
caf7df12 | 126 | __field( int, error ) |
af5040da | 127 | __array( char, rwbs, RWBS_LEN ) |
48b77ad6 | 128 | __dynamic_array( char, cmd, 1 ) |
af5040da RP |
129 | ), |
130 | ||
131 | TP_fast_assign( | |
132 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
133 | __entry->sector = blk_rq_pos(rq); | |
134 | __entry->nr_sector = nr_bytes >> 9; | |
caf7df12 | 135 | __entry->error = error; |
af5040da | 136 | |
ef295ecf | 137 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes); |
48b77ad6 | 138 | __get_str(cmd)[0] = '\0'; |
af5040da RP |
139 | ), |
140 | ||
141 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
142 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
143 | __entry->rwbs, __get_str(cmd), | |
144 | (unsigned long long)__entry->sector, | |
caf7df12 | 145 | __entry->nr_sector, __entry->error) |
55782138 LZ |
146 | ); |
147 | ||
77ca1e02 | 148 | DECLARE_EVENT_CLASS(block_rq, |
55782138 LZ |
149 | |
150 | TP_PROTO(struct request_queue *q, struct request *rq), | |
151 | ||
152 | TP_ARGS(q, rq), | |
153 | ||
154 | TP_STRUCT__entry( | |
155 | __field( dev_t, dev ) | |
156 | __field( sector_t, sector ) | |
157 | __field( unsigned int, nr_sector ) | |
158 | __field( unsigned int, bytes ) | |
c09c47ca | 159 | __array( char, rwbs, RWBS_LEN ) |
77ca1e02 | 160 | __array( char, comm, TASK_COMM_LEN ) |
48b77ad6 | 161 | __dynamic_array( char, cmd, 1 ) |
55782138 LZ |
162 | ), |
163 | ||
164 | TP_fast_assign( | |
165 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
48b77ad6 CH |
166 | __entry->sector = blk_rq_trace_sector(rq); |
167 | __entry->nr_sector = blk_rq_trace_nr_sectors(rq); | |
168 | __entry->bytes = blk_rq_bytes(rq); | |
55782138 | 169 | |
ef295ecf | 170 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
48b77ad6 | 171 | __get_str(cmd)[0] = '\0'; |
55782138 LZ |
172 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
173 | ), | |
174 | ||
175 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
176 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
177 | __entry->rwbs, __entry->bytes, __get_str(cmd), | |
6556d1df SR |
178 | (unsigned long long)__entry->sector, |
179 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
180 | ); |
181 | ||
881245dc WC |
182 | /** |
183 | * block_rq_insert - insert block operation request into queue | |
184 | * @q: target queue | |
185 | * @rq: block IO operation request | |
186 | * | |
187 | * Called immediately before block operation request @rq is inserted | |
188 | * into queue @q. The fields in the operation request @rq struct can | |
189 | * be examined to determine which device and sectors the pending | |
190 | * operation would access. | |
191 | */ | |
77ca1e02 | 192 | DEFINE_EVENT(block_rq, block_rq_insert, |
55782138 LZ |
193 | |
194 | TP_PROTO(struct request_queue *q, struct request *rq), | |
195 | ||
77ca1e02 | 196 | TP_ARGS(q, rq) |
55782138 LZ |
197 | ); |
198 | ||
881245dc WC |
199 | /** |
200 | * block_rq_issue - issue pending block IO request operation to device driver | |
201 | * @q: queue holding operation | |
202 | * @rq: block IO operation operation request | |
203 | * | |
204 | * Called when block operation request @rq from queue @q is sent to a | |
205 | * device driver for processing. | |
206 | */ | |
77ca1e02 | 207 | DEFINE_EVENT(block_rq, block_rq_issue, |
55782138 LZ |
208 | |
209 | TP_PROTO(struct request_queue *q, struct request *rq), | |
210 | ||
77ca1e02 | 211 | TP_ARGS(q, rq) |
55782138 | 212 | ); |
fe63b94a | 213 | |
f3bdc62f JK |
214 | /** |
215 | * block_rq_merge - merge request with another one in the elevator | |
216 | * @q: queue holding operation | |
217 | * @rq: block IO operation operation request | |
218 | * | |
219 | * Called when block operation request @rq from queue @q is merged to another | |
220 | * request queued in the elevator. | |
221 | */ | |
222 | DEFINE_EVENT(block_rq, block_rq_merge, | |
223 | ||
224 | TP_PROTO(struct request_queue *q, struct request *rq), | |
225 | ||
226 | TP_ARGS(q, rq) | |
227 | ); | |
228 | ||
881245dc WC |
229 | /** |
230 | * block_bio_complete - completed all work on the block operation | |
0a82a8d1 | 231 | * @q: queue holding the block operation |
881245dc WC |
232 | * @bio: block operation completed |
233 | * | |
234 | * This tracepoint indicates there is no further work to do on this | |
235 | * block IO operation @bio. | |
236 | */ | |
55782138 LZ |
237 | TRACE_EVENT(block_bio_complete, |
238 | ||
d24de76a | 239 | TP_PROTO(struct request_queue *q, struct bio *bio), |
55782138 | 240 | |
d24de76a | 241 | TP_ARGS(q, bio), |
55782138 LZ |
242 | |
243 | TP_STRUCT__entry( | |
244 | __field( dev_t, dev ) | |
245 | __field( sector_t, sector ) | |
246 | __field( unsigned, nr_sector ) | |
247 | __field( int, error ) | |
c09c47ca | 248 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
249 | ), |
250 | ||
251 | TP_fast_assign( | |
74d46992 | 252 | __entry->dev = bio_dev(bio); |
4f024f37 | 253 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 254 | __entry->nr_sector = bio_sectors(bio); |
d24de76a | 255 | __entry->error = blk_status_to_errno(bio->bi_status); |
ef295ecf | 256 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
257 | ), |
258 | ||
259 | TP_printk("%d,%d %s %llu + %u [%d]", | |
260 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
261 | (unsigned long long)__entry->sector, |
262 | __entry->nr_sector, __entry->error) | |
55782138 LZ |
263 | ); |
264 | ||
e8a676d6 | 265 | DECLARE_EVENT_CLASS(block_bio, |
55782138 | 266 | |
e8a676d6 | 267 | TP_PROTO(struct bio *bio), |
55782138 | 268 | |
e8a676d6 | 269 | TP_ARGS(bio), |
55782138 LZ |
270 | |
271 | TP_STRUCT__entry( | |
272 | __field( dev_t, dev ) | |
273 | __field( sector_t, sector ) | |
274 | __field( unsigned int, nr_sector ) | |
c09c47ca | 275 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
276 | __array( char, comm, TASK_COMM_LEN ) |
277 | ), | |
278 | ||
279 | TP_fast_assign( | |
74d46992 | 280 | __entry->dev = bio_dev(bio); |
4f024f37 | 281 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 282 | __entry->nr_sector = bio_sectors(bio); |
ef295ecf | 283 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
284 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
285 | ), | |
286 | ||
287 | TP_printk("%d,%d %s %llu + %u [%s]", | |
288 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
289 | (unsigned long long)__entry->sector, |
290 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
291 | ); |
292 | ||
e8a676d6 CH |
293 | /** |
294 | * block_bio_bounce - used bounce buffer when processing block operation | |
295 | * @bio: block operation | |
296 | * | |
297 | * A bounce buffer was used to handle the block operation @bio in @q. | |
298 | * This occurs when hardware limitations prevent a direct transfer of | |
299 | * data between the @bio data memory area and the IO device. Use of a | |
300 | * bounce buffer requires extra copying of data and decreases | |
301 | * performance. | |
302 | */ | |
303 | DEFINE_EVENT(block_bio, block_bio_bounce, | |
304 | TP_PROTO(struct bio *bio), | |
305 | TP_ARGS(bio) | |
306 | ); | |
307 | ||
881245dc WC |
308 | /** |
309 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
881245dc WC |
310 | * @bio: new block operation to merge |
311 | * | |
e8a676d6 | 312 | * Merging block request @bio to the end of an existing block request. |
881245dc | 313 | */ |
e8a676d6 CH |
314 | DEFINE_EVENT(block_bio, block_bio_backmerge, |
315 | TP_PROTO(struct bio *bio), | |
316 | TP_ARGS(bio) | |
55782138 LZ |
317 | ); |
318 | ||
881245dc WC |
319 | /** |
320 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
881245dc WC |
321 | * @bio: new block operation to merge |
322 | * | |
e8a676d6 | 323 | * Merging block IO operation @bio to the beginning of an existing block request. |
881245dc | 324 | */ |
e8a676d6 CH |
325 | DEFINE_EVENT(block_bio, block_bio_frontmerge, |
326 | TP_PROTO(struct bio *bio), | |
327 | TP_ARGS(bio) | |
77ca1e02 | 328 | ); |
55782138 | 329 | |
881245dc WC |
330 | /** |
331 | * block_bio_queue - putting new block IO operation in queue | |
881245dc WC |
332 | * @bio: new block operation |
333 | * | |
334 | * About to place the block IO operation @bio into queue @q. | |
335 | */ | |
e8a676d6 CH |
336 | DEFINE_EVENT(block_bio, block_bio_queue, |
337 | TP_PROTO(struct bio *bio), | |
338 | TP_ARGS(bio) | |
55782138 LZ |
339 | ); |
340 | ||
881245dc WC |
341 | /** |
342 | * block_getrq - get a free request entry in queue for block IO operations | |
f8e9ec16 | 343 | * @bio: pending block IO operation (can be %NULL) |
881245dc | 344 | * |
e8a676d6 | 345 | * A request struct has been allocated to handle the block IO operation @bio. |
881245dc | 346 | */ |
e8a676d6 CH |
347 | DEFINE_EVENT(block_bio, block_getrq, |
348 | TP_PROTO(struct bio *bio), | |
349 | TP_ARGS(bio) | |
77ca1e02 | 350 | ); |
55782138 | 351 | |
881245dc WC |
352 | /** |
353 | * block_plug - keep operations requests in request queue | |
354 | * @q: request queue to plug | |
355 | * | |
356 | * Plug the request queue @q. Do not allow block operation requests | |
357 | * to be sent to the device driver. Instead, accumulate requests in | |
358 | * the queue to improve throughput performance of the block device. | |
359 | */ | |
55782138 LZ |
360 | TRACE_EVENT(block_plug, |
361 | ||
362 | TP_PROTO(struct request_queue *q), | |
363 | ||
364 | TP_ARGS(q), | |
365 | ||
366 | TP_STRUCT__entry( | |
367 | __array( char, comm, TASK_COMM_LEN ) | |
368 | ), | |
369 | ||
370 | TP_fast_assign( | |
371 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); | |
372 | ), | |
373 | ||
374 | TP_printk("[%s]", __entry->comm) | |
375 | ); | |
376 | ||
77ca1e02 | 377 | DECLARE_EVENT_CLASS(block_unplug, |
55782138 | 378 | |
49cac01e | 379 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 380 | |
49cac01e | 381 | TP_ARGS(q, depth, explicit), |
55782138 LZ |
382 | |
383 | TP_STRUCT__entry( | |
384 | __field( int, nr_rq ) | |
385 | __array( char, comm, TASK_COMM_LEN ) | |
386 | ), | |
387 | ||
388 | TP_fast_assign( | |
94b5eb28 | 389 | __entry->nr_rq = depth; |
55782138 LZ |
390 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
391 | ), | |
392 | ||
393 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
394 | ); | |
395 | ||
881245dc | 396 | /** |
49cac01e | 397 | * block_unplug - release of operations requests in request queue |
881245dc | 398 | * @q: request queue to unplug |
94b5eb28 | 399 | * @depth: number of requests just added to the queue |
49cac01e | 400 | * @explicit: whether this was an explicit unplug, or one from schedule() |
881245dc WC |
401 | * |
402 | * Unplug request queue @q because device driver is scheduled to work | |
403 | * on elements in the request queue. | |
404 | */ | |
49cac01e | 405 | DEFINE_EVENT(block_unplug, block_unplug, |
55782138 | 406 | |
49cac01e | 407 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 408 | |
49cac01e | 409 | TP_ARGS(q, depth, explicit) |
55782138 LZ |
410 | ); |
411 | ||
881245dc WC |
412 | /** |
413 | * block_split - split a single bio struct into two bio structs | |
881245dc WC |
414 | * @bio: block operation being split |
415 | * @new_sector: The starting sector for the new bio | |
416 | * | |
eb6f7f7c CH |
417 | * The bio request @bio needs to be split into two bio requests. The newly |
418 | * created @bio request starts at @new_sector. This split may be required due to | |
419 | * hardware limitations such as operation crossing device boundaries in a RAID | |
420 | * system. | |
881245dc | 421 | */ |
55782138 LZ |
422 | TRACE_EVENT(block_split, |
423 | ||
eb6f7f7c | 424 | TP_PROTO(struct bio *bio, unsigned int new_sector), |
55782138 | 425 | |
eb6f7f7c | 426 | TP_ARGS(bio, new_sector), |
55782138 LZ |
427 | |
428 | TP_STRUCT__entry( | |
429 | __field( dev_t, dev ) | |
430 | __field( sector_t, sector ) | |
431 | __field( sector_t, new_sector ) | |
c09c47ca | 432 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
433 | __array( char, comm, TASK_COMM_LEN ) |
434 | ), | |
435 | ||
436 | TP_fast_assign( | |
74d46992 | 437 | __entry->dev = bio_dev(bio); |
4f024f37 | 438 | __entry->sector = bio->bi_iter.bi_sector; |
55782138 | 439 | __entry->new_sector = new_sector; |
ef295ecf | 440 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
441 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
442 | ), | |
443 | ||
444 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
445 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
446 | (unsigned long long)__entry->sector, |
447 | (unsigned long long)__entry->new_sector, | |
448 | __entry->comm) | |
55782138 LZ |
449 | ); |
450 | ||
881245dc | 451 | /** |
d07335e5 | 452 | * block_bio_remap - map request for a logical device to the raw device |
881245dc WC |
453 | * @q: queue holding the operation |
454 | * @bio: revised operation | |
455 | * @dev: device for the operation | |
456 | * @from: original sector for the operation | |
457 | * | |
d07335e5 | 458 | * An operation for a logical device has been mapped to the |
881245dc WC |
459 | * raw block device. |
460 | */ | |
d07335e5 | 461 | TRACE_EVENT(block_bio_remap, |
55782138 LZ |
462 | |
463 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
464 | sector_t from), | |
465 | ||
466 | TP_ARGS(q, bio, dev, from), | |
467 | ||
468 | TP_STRUCT__entry( | |
469 | __field( dev_t, dev ) | |
470 | __field( sector_t, sector ) | |
471 | __field( unsigned int, nr_sector ) | |
472 | __field( dev_t, old_dev ) | |
473 | __field( sector_t, old_sector ) | |
c09c47ca | 474 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
475 | ), |
476 | ||
477 | TP_fast_assign( | |
74d46992 | 478 | __entry->dev = bio_dev(bio); |
4f024f37 | 479 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 480 | __entry->nr_sector = bio_sectors(bio); |
55782138 LZ |
481 | __entry->old_dev = dev; |
482 | __entry->old_sector = from; | |
ef295ecf | 483 | blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size); |
55782138 LZ |
484 | ), |
485 | ||
486 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
487 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
488 | (unsigned long long)__entry->sector, |
489 | __entry->nr_sector, | |
55782138 | 490 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), |
6556d1df | 491 | (unsigned long long)__entry->old_sector) |
55782138 LZ |
492 | ); |
493 | ||
881245dc WC |
494 | /** |
495 | * block_rq_remap - map request for a block operation request | |
496 | * @q: queue holding the operation | |
497 | * @rq: block IO operation request | |
498 | * @dev: device for the operation | |
499 | * @from: original sector for the operation | |
500 | * | |
501 | * The block operation request @rq in @q has been remapped. The block | |
502 | * operation request @rq holds the current information and @from hold | |
503 | * the original sector. | |
504 | */ | |
b0da3f0d JN |
505 | TRACE_EVENT(block_rq_remap, |
506 | ||
507 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
508 | sector_t from), | |
509 | ||
510 | TP_ARGS(q, rq, dev, from), | |
511 | ||
512 | TP_STRUCT__entry( | |
513 | __field( dev_t, dev ) | |
514 | __field( sector_t, sector ) | |
515 | __field( unsigned int, nr_sector ) | |
516 | __field( dev_t, old_dev ) | |
517 | __field( sector_t, old_sector ) | |
75afb352 | 518 | __field( unsigned int, nr_bios ) |
c09c47ca | 519 | __array( char, rwbs, RWBS_LEN) |
b0da3f0d JN |
520 | ), |
521 | ||
522 | TP_fast_assign( | |
523 | __entry->dev = disk_devt(rq->rq_disk); | |
524 | __entry->sector = blk_rq_pos(rq); | |
525 | __entry->nr_sector = blk_rq_sectors(rq); | |
526 | __entry->old_dev = dev; | |
527 | __entry->old_sector = from; | |
75afb352 | 528 | __entry->nr_bios = blk_rq_count_bios(rq); |
ef295ecf | 529 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
b0da3f0d JN |
530 | ), |
531 | ||
75afb352 | 532 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", |
b0da3f0d JN |
533 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, |
534 | (unsigned long long)__entry->sector, | |
535 | __entry->nr_sector, | |
536 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
75afb352 | 537 | (unsigned long long)__entry->old_sector, __entry->nr_bios) |
b0da3f0d JN |
538 | ); |
539 | ||
55782138 LZ |
540 | #endif /* _TRACE_BLOCK_H */ |
541 | ||
542 | /* This part must be outside protection */ | |
543 | #include <trace/define_trace.h> | |
544 |