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f62b389e MD |
1 | #undef TRACE_SYSTEM |
2 | #define TRACE_SYSTEM block | |
3 | ||
4 | #if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ) | |
5 | #define _TRACE_BLOCK_H | |
6 | ||
7 | #include <linux/blktrace_api.h> | |
8 | #include <linux/blkdev.h> | |
9 | #include <linux/tracepoint.h> | |
10 | #include <linux/trace_seq.h> | |
11 | ||
12 | #ifndef _TRACE_BLOCK_DEF_ | |
13 | #define _TRACE_BLOCK_DEF_ | |
14 | ||
15 | #define __blk_dump_cmd(cmd, len) "<unknown>" | |
16 | ||
17 | enum { | |
18 | RWBS_FLAG_WRITE = (1 << 0), | |
19 | RWBS_FLAG_DISCARD = (1 << 1), | |
20 | RWBS_FLAG_READ = (1 << 2), | |
21 | RWBS_FLAG_RAHEAD = (1 << 3), | |
22 | RWBS_FLAG_SYNC = (1 << 4), | |
23 | RWBS_FLAG_META = (1 << 5), | |
24 | RWBS_FLAG_SECURE = (1 << 6), | |
25 | }; | |
26 | ||
27 | #endif /* _TRACE_BLOCK_DEF_ */ | |
28 | ||
29 | #define __print_rwbs_flags(rwbs) \ | |
30 | __print_flags(rwbs, "", \ | |
31 | { RWBS_FLAG_WRITE, "W" }, \ | |
32 | { RWBS_FLAG_DISCARD, "D" }, \ | |
33 | { RWBS_FLAG_READ, "R" }, \ | |
34 | { RWBS_FLAG_RAHEAD, "A" }, \ | |
35 | { RWBS_FLAG_SYNC, "S" }, \ | |
36 | { RWBS_FLAG_META, "M" }, \ | |
37 | { RWBS_FLAG_SECURE, "E" }) | |
38 | ||
39 | #define blk_fill_rwbs(rwbs, rw, bytes) \ | |
40 | tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \ | |
41 | ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \ | |
42 | ( (bytes) ? RWBS_FLAG_READ : \ | |
43 | ( 0 )))) \ | |
44 | | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \ | |
45 | | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \ | |
46 | | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \ | |
47 | | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0)) | |
48 | ||
49 | DECLARE_EVENT_CLASS(block_rq_with_error, | |
50 | ||
51 | TP_PROTO(struct request_queue *q, struct request *rq), | |
52 | ||
53 | TP_ARGS(q, rq), | |
54 | ||
55 | TP_STRUCT__entry( | |
56 | __field( dev_t, dev ) | |
57 | __field( sector_t, sector ) | |
58 | __field( unsigned int, nr_sector ) | |
59 | __field( int, errors ) | |
60 | __field( unsigned int, rwbs ) | |
16830439 MD |
61 | __dynamic_array_hex( unsigned char, cmd, |
62 | (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
63 | rq->cmd_len : 0) | |
f62b389e MD |
64 | ), |
65 | ||
66 | TP_fast_assign( | |
67 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
68 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
69 | 0 : blk_rq_pos(rq)) | |
70 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
71 | 0 : blk_rq_sectors(rq)) | |
72 | tp_assign(errors, rq->errors) | |
73 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 | 74 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
16830439 | 75 | rq->cmd : NULL); |
f62b389e MD |
76 | ), |
77 | ||
78 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
79 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
80 | __print_rwbs_flags(__entry->rwbs), | |
81 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
82 | __get_dynamic_array_len(cmd)), | |
83 | (unsigned long long)__entry->sector, | |
84 | __entry->nr_sector, __entry->errors) | |
85 | ) | |
86 | ||
87 | /** | |
88 | * block_rq_abort - abort block operation request | |
89 | * @q: queue containing the block operation request | |
90 | * @rq: block IO operation request | |
91 | * | |
92 | * Called immediately after pending block IO operation request @rq in | |
93 | * queue @q is aborted. The fields in the operation request @rq | |
94 | * can be examined to determine which device and sectors the pending | |
95 | * operation would access. | |
96 | */ | |
97 | DEFINE_EVENT(block_rq_with_error, block_rq_abort, | |
98 | ||
99 | TP_PROTO(struct request_queue *q, struct request *rq), | |
100 | ||
101 | TP_ARGS(q, rq) | |
102 | ) | |
103 | ||
104 | /** | |
105 | * block_rq_requeue - place block IO request back on a queue | |
106 | * @q: queue holding operation | |
107 | * @rq: block IO operation request | |
108 | * | |
109 | * The block operation request @rq is being placed back into queue | |
110 | * @q. For some reason the request was not completed and needs to be | |
111 | * put back in the queue. | |
112 | */ | |
113 | DEFINE_EVENT(block_rq_with_error, block_rq_requeue, | |
114 | ||
115 | TP_PROTO(struct request_queue *q, struct request *rq), | |
116 | ||
117 | TP_ARGS(q, rq) | |
118 | ) | |
119 | ||
120 | /** | |
121 | * block_rq_complete - block IO operation completed by device driver | |
122 | * @q: queue containing the block operation request | |
123 | * @rq: block operations request | |
124 | * | |
125 | * The block_rq_complete tracepoint event indicates that some portion | |
126 | * of operation request has been completed by the device driver. If | |
127 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
128 | * do for the request. If @rq->bio is non-NULL then there is | |
129 | * additional work required to complete the request. | |
130 | */ | |
131 | DEFINE_EVENT(block_rq_with_error, block_rq_complete, | |
132 | ||
133 | TP_PROTO(struct request_queue *q, struct request *rq), | |
134 | ||
135 | TP_ARGS(q, rq) | |
136 | ) | |
137 | ||
138 | DECLARE_EVENT_CLASS(block_rq, | |
139 | ||
140 | TP_PROTO(struct request_queue *q, struct request *rq), | |
141 | ||
142 | TP_ARGS(q, rq), | |
143 | ||
144 | TP_STRUCT__entry( | |
145 | __field( dev_t, dev ) | |
146 | __field( sector_t, sector ) | |
147 | __field( unsigned int, nr_sector ) | |
148 | __field( unsigned int, bytes ) | |
149 | __field( unsigned int, rwbs ) | |
64c796d8 | 150 | __array_text( char, comm, TASK_COMM_LEN ) |
16830439 MD |
151 | __dynamic_array_hex( unsigned char, cmd, |
152 | (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
153 | rq->cmd_len : 0) | |
f62b389e MD |
154 | ), |
155 | ||
156 | TP_fast_assign( | |
157 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
158 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
159 | 0 : blk_rq_pos(rq)) | |
160 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
161 | 0 : blk_rq_sectors(rq)) | |
162 | tp_assign(bytes, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
163 | blk_rq_bytes(rq) : 0) | |
164 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 | 165 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
16830439 | 166 | rq->cmd : NULL); |
f62b389e MD |
167 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
168 | ), | |
169 | ||
170 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
171 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
172 | __print_rwbs_flags(__entry->rwbs), | |
173 | __entry->bytes, | |
174 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
175 | __get_dynamic_array_len(cmd)), | |
176 | (unsigned long long)__entry->sector, | |
177 | __entry->nr_sector, __entry->comm) | |
178 | ) | |
179 | ||
180 | /** | |
181 | * block_rq_insert - insert block operation request into queue | |
182 | * @q: target queue | |
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 | */ | |
190 | DEFINE_EVENT(block_rq, block_rq_insert, | |
191 | ||
192 | TP_PROTO(struct request_queue *q, struct request *rq), | |
193 | ||
194 | TP_ARGS(q, rq) | |
195 | ) | |
196 | ||
197 | /** | |
198 | * block_rq_issue - issue pending block IO request operation to device driver | |
199 | * @q: queue holding operation | |
200 | * @rq: block IO operation operation request | |
201 | * | |
202 | * Called when block operation request @rq from queue @q is sent to a | |
203 | * device driver for processing. | |
204 | */ | |
205 | DEFINE_EVENT(block_rq, block_rq_issue, | |
206 | ||
207 | TP_PROTO(struct request_queue *q, struct request *rq), | |
208 | ||
209 | TP_ARGS(q, rq) | |
210 | ) | |
211 | ||
212 | /** | |
213 | * block_bio_bounce - used bounce buffer when processing block operation | |
214 | * @q: queue holding the block operation | |
215 | * @bio: block operation | |
216 | * | |
217 | * A bounce buffer was used to handle the block operation @bio in @q. | |
218 | * This occurs when hardware limitations prevent a direct transfer of | |
219 | * data between the @bio data memory area and the IO device. Use of a | |
220 | * bounce buffer requires extra copying of data and decreases | |
221 | * performance. | |
222 | */ | |
223 | TRACE_EVENT(block_bio_bounce, | |
224 | ||
225 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
226 | ||
227 | TP_ARGS(q, bio), | |
228 | ||
229 | TP_STRUCT__entry( | |
230 | __field( dev_t, dev ) | |
231 | __field( sector_t, sector ) | |
232 | __field( unsigned int, nr_sector ) | |
233 | __field( unsigned int, rwbs ) | |
64c796d8 | 234 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
235 | ), |
236 | ||
237 | TP_fast_assign( | |
238 | tp_assign(dev, bio->bi_bdev ? | |
239 | bio->bi_bdev->bd_dev : 0) | |
240 | tp_assign(sector, bio->bi_sector) | |
241 | tp_assign(nr_sector, bio->bi_size >> 9) | |
242 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
243 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
244 | ), | |
245 | ||
246 | TP_printk("%d,%d %s %llu + %u [%s]", | |
247 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
248 | __print_rwbs_flags(__entry->rwbs), | |
249 | (unsigned long long)__entry->sector, | |
250 | __entry->nr_sector, __entry->comm) | |
251 | ) | |
252 | ||
253 | /** | |
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 | |
258 | * | |
259 | * This tracepoint indicates there is no further work to do on this | |
260 | * block IO operation @bio. | |
261 | */ | |
262 | TRACE_EVENT(block_bio_complete, | |
263 | ||
264 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), | |
265 | ||
266 | TP_ARGS(q, bio, error), | |
267 | ||
268 | TP_STRUCT__entry( | |
269 | __field( dev_t, dev ) | |
270 | __field( sector_t, sector ) | |
271 | __field( unsigned, nr_sector ) | |
272 | __field( int, error ) | |
273 | __field( unsigned int, rwbs ) | |
274 | ), | |
275 | ||
276 | TP_fast_assign( | |
277 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
278 | tp_assign(sector, bio->bi_sector) | |
279 | tp_assign(nr_sector, bio->bi_size >> 9) | |
280 | tp_assign(error, error) | |
281 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
282 | ), | |
283 | ||
284 | TP_printk("%d,%d %s %llu + %u [%d]", | |
285 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
286 | __print_rwbs_flags(__entry->rwbs), | |
287 | (unsigned long long)__entry->sector, | |
288 | __entry->nr_sector, __entry->error) | |
289 | ) | |
290 | ||
291 | DECLARE_EVENT_CLASS(block_bio, | |
292 | ||
293 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
294 | ||
295 | TP_ARGS(q, bio), | |
296 | ||
297 | TP_STRUCT__entry( | |
298 | __field( dev_t, dev ) | |
299 | __field( sector_t, sector ) | |
300 | __field( unsigned int, nr_sector ) | |
301 | __field( unsigned int, rwbs ) | |
64c796d8 | 302 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
303 | ), |
304 | ||
305 | TP_fast_assign( | |
306 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
307 | tp_assign(sector, bio->bi_sector) | |
308 | tp_assign(nr_sector, bio->bi_size >> 9) | |
309 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
310 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
311 | ), | |
312 | ||
313 | TP_printk("%d,%d %s %llu + %u [%s]", | |
314 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
315 | __print_rwbs_flags(__entry->rwbs), | |
316 | (unsigned long long)__entry->sector, | |
317 | __entry->nr_sector, __entry->comm) | |
318 | ) | |
319 | ||
320 | /** | |
321 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
322 | * @q: queue holding operation | |
323 | * @bio: new block operation to merge | |
324 | * | |
325 | * Merging block request @bio to the end of an existing block request | |
326 | * in queue @q. | |
327 | */ | |
328 | DEFINE_EVENT(block_bio, block_bio_backmerge, | |
329 | ||
330 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
331 | ||
332 | TP_ARGS(q, bio) | |
333 | ) | |
334 | ||
335 | /** | |
336 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
337 | * @q: queue holding operation | |
338 | * @bio: new block operation to merge | |
339 | * | |
340 | * Merging block IO operation @bio to the beginning of an existing block | |
341 | * operation in queue @q. | |
342 | */ | |
343 | DEFINE_EVENT(block_bio, block_bio_frontmerge, | |
344 | ||
345 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
346 | ||
347 | TP_ARGS(q, bio) | |
348 | ) | |
349 | ||
350 | /** | |
351 | * block_bio_queue - putting new block IO operation in queue | |
352 | * @q: queue holding operation | |
353 | * @bio: new block operation | |
354 | * | |
355 | * About to place the block IO operation @bio into queue @q. | |
356 | */ | |
357 | DEFINE_EVENT(block_bio, block_bio_queue, | |
358 | ||
359 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
360 | ||
361 | TP_ARGS(q, bio) | |
362 | ) | |
363 | ||
364 | DECLARE_EVENT_CLASS(block_get_rq, | |
365 | ||
366 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
367 | ||
368 | TP_ARGS(q, bio, rw), | |
369 | ||
370 | TP_STRUCT__entry( | |
371 | __field( dev_t, dev ) | |
372 | __field( sector_t, sector ) | |
373 | __field( unsigned int, nr_sector ) | |
374 | __field( unsigned int, rwbs ) | |
64c796d8 | 375 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
376 | ), |
377 | ||
378 | TP_fast_assign( | |
379 | tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0) | |
380 | tp_assign(sector, bio ? bio->bi_sector : 0) | |
381 | tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0) | |
382 | blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0, | |
383 | bio ? bio->bi_size >> 9 : 0) | |
384 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
385 | ), | |
386 | ||
387 | TP_printk("%d,%d %s %llu + %u [%s]", | |
388 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
389 | __print_rwbs_flags(__entry->rwbs), | |
390 | (unsigned long long)__entry->sector, | |
391 | __entry->nr_sector, __entry->comm) | |
392 | ) | |
393 | ||
394 | /** | |
395 | * block_getrq - get a free request entry in queue for block IO operations | |
396 | * @q: queue for operations | |
397 | * @bio: pending block IO operation | |
398 | * @rw: low bit indicates a read (%0) or a write (%1) | |
399 | * | |
400 | * A request struct for queue @q has been allocated to handle the | |
401 | * block IO operation @bio. | |
402 | */ | |
403 | DEFINE_EVENT(block_get_rq, block_getrq, | |
404 | ||
405 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
406 | ||
407 | TP_ARGS(q, bio, rw) | |
408 | ) | |
409 | ||
410 | /** | |
411 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation | |
412 | * @q: queue for operation | |
413 | * @bio: pending block IO operation | |
414 | * @rw: low bit indicates a read (%0) or a write (%1) | |
415 | * | |
416 | * In the case where a request struct cannot be provided for queue @q | |
417 | * the process needs to wait for an request struct to become | |
418 | * available. This tracepoint event is generated each time the | |
419 | * process goes to sleep waiting for request struct become available. | |
420 | */ | |
421 | DEFINE_EVENT(block_get_rq, block_sleeprq, | |
422 | ||
423 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
424 | ||
425 | TP_ARGS(q, bio, rw) | |
426 | ) | |
427 | ||
428 | /** | |
429 | * block_plug - keep operations requests in request queue | |
430 | * @q: request queue to plug | |
431 | * | |
432 | * Plug the request queue @q. Do not allow block operation requests | |
433 | * to be sent to the device driver. Instead, accumulate requests in | |
434 | * the queue to improve throughput performance of the block device. | |
435 | */ | |
436 | TRACE_EVENT(block_plug, | |
437 | ||
438 | TP_PROTO(struct request_queue *q), | |
439 | ||
440 | TP_ARGS(q), | |
441 | ||
442 | TP_STRUCT__entry( | |
64c796d8 | 443 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
444 | ), |
445 | ||
446 | TP_fast_assign( | |
447 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
448 | ), | |
449 | ||
450 | TP_printk("[%s]", __entry->comm) | |
451 | ) | |
452 | ||
453 | DECLARE_EVENT_CLASS(block_unplug, | |
454 | ||
455 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), | |
456 | ||
457 | TP_ARGS(q, depth, explicit), | |
458 | ||
459 | TP_STRUCT__entry( | |
460 | __field( int, nr_rq ) | |
64c796d8 | 461 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
462 | ), |
463 | ||
464 | TP_fast_assign( | |
465 | tp_assign(nr_rq, depth) | |
466 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
467 | ), | |
468 | ||
469 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
470 | ) | |
471 | ||
472 | /** | |
473 | * block_unplug - release of operations requests in request queue | |
474 | * @q: request queue to unplug | |
475 | * @depth: number of requests just added to the queue | |
476 | * @explicit: whether this was an explicit unplug, or one from schedule() | |
477 | * | |
478 | * Unplug request queue @q because device driver is scheduled to work | |
479 | * on elements in the request queue. | |
480 | */ | |
481 | DEFINE_EVENT(block_unplug, block_unplug, | |
482 | ||
483 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), | |
484 | ||
485 | TP_ARGS(q, depth, explicit) | |
486 | ) | |
487 | ||
488 | /** | |
489 | * block_split - split a single bio struct into two bio structs | |
490 | * @q: queue containing the bio | |
491 | * @bio: block operation being split | |
492 | * @new_sector: The starting sector for the new bio | |
493 | * | |
494 | * The bio request @bio in request queue @q needs to be split into two | |
495 | * bio requests. The newly created @bio request starts at | |
496 | * @new_sector. This split may be required due to hardware limitation | |
497 | * such as operation crossing device boundaries in a RAID system. | |
498 | */ | |
499 | TRACE_EVENT(block_split, | |
500 | ||
501 | TP_PROTO(struct request_queue *q, struct bio *bio, | |
502 | unsigned int new_sector), | |
503 | ||
504 | TP_ARGS(q, bio, new_sector), | |
505 | ||
506 | TP_STRUCT__entry( | |
507 | __field( dev_t, dev ) | |
508 | __field( sector_t, sector ) | |
509 | __field( sector_t, new_sector ) | |
510 | __field( unsigned int, rwbs ) | |
64c796d8 | 511 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
512 | ), |
513 | ||
514 | TP_fast_assign( | |
515 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
516 | tp_assign(sector, bio->bi_sector) | |
517 | tp_assign(new_sector, new_sector) | |
518 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
519 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
520 | ), | |
521 | ||
522 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
523 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
524 | __print_rwbs_flags(__entry->rwbs), | |
525 | (unsigned long long)__entry->sector, | |
526 | (unsigned long long)__entry->new_sector, | |
527 | __entry->comm) | |
528 | ) | |
529 | ||
530 | /** | |
531 | * block_bio_remap - map request for a logical device to the raw device | |
532 | * @q: queue holding the operation | |
533 | * @bio: revised operation | |
534 | * @dev: device for the operation | |
535 | * @from: original sector for the operation | |
536 | * | |
537 | * An operation for a logical device has been mapped to the | |
538 | * raw block device. | |
539 | */ | |
540 | TRACE_EVENT(block_bio_remap, | |
541 | ||
542 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
543 | sector_t from), | |
544 | ||
545 | TP_ARGS(q, bio, dev, from), | |
546 | ||
547 | TP_STRUCT__entry( | |
548 | __field( dev_t, dev ) | |
549 | __field( sector_t, sector ) | |
550 | __field( unsigned int, nr_sector ) | |
551 | __field( dev_t, old_dev ) | |
552 | __field( sector_t, old_sector ) | |
553 | __field( unsigned int, rwbs ) | |
554 | ), | |
555 | ||
556 | TP_fast_assign( | |
557 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
558 | tp_assign(sector, bio->bi_sector) | |
559 | tp_assign(nr_sector, bio->bi_size >> 9) | |
560 | tp_assign(old_dev, dev) | |
561 | tp_assign(old_sector, from) | |
562 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
563 | ), | |
564 | ||
565 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
566 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
567 | __print_rwbs_flags(__entry->rwbs), | |
568 | (unsigned long long)__entry->sector, | |
569 | __entry->nr_sector, | |
570 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
571 | (unsigned long long)__entry->old_sector) | |
572 | ) | |
573 | ||
574 | /** | |
575 | * block_rq_remap - map request for a block operation request | |
576 | * @q: queue holding the operation | |
577 | * @rq: block IO operation request | |
578 | * @dev: device for the operation | |
579 | * @from: original sector for the operation | |
580 | * | |
581 | * The block operation request @rq in @q has been remapped. The block | |
582 | * operation request @rq holds the current information and @from hold | |
583 | * the original sector. | |
584 | */ | |
585 | TRACE_EVENT(block_rq_remap, | |
586 | ||
587 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
588 | sector_t from), | |
589 | ||
590 | TP_ARGS(q, rq, dev, from), | |
591 | ||
592 | TP_STRUCT__entry( | |
593 | __field( dev_t, dev ) | |
594 | __field( sector_t, sector ) | |
595 | __field( unsigned int, nr_sector ) | |
596 | __field( dev_t, old_dev ) | |
597 | __field( sector_t, old_sector ) | |
598 | __field( unsigned int, rwbs ) | |
599 | ), | |
600 | ||
601 | TP_fast_assign( | |
602 | tp_assign(dev, disk_devt(rq->rq_disk)) | |
603 | tp_assign(sector, blk_rq_pos(rq)) | |
604 | tp_assign(nr_sector, blk_rq_sectors(rq)) | |
605 | tp_assign(old_dev, dev) | |
606 | tp_assign(old_sector, from) | |
607 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
608 | ), | |
609 | ||
610 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
611 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
612 | __print_rwbs_flags(__entry->rwbs), | |
613 | (unsigned long long)__entry->sector, | |
614 | __entry->nr_sector, | |
615 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
616 | (unsigned long long)__entry->old_sector) | |
617 | ) | |
618 | ||
619 | #undef __print_rwbs_flags | |
620 | #undef blk_fill_rwbs | |
621 | ||
622 | #endif /* _TRACE_BLOCK_H */ | |
623 | ||
624 | /* This part must be outside protection */ | |
5b88d86e | 625 | #include "../../../probes/define_trace.h" |
f62b389e | 626 |