Commit | Line | Data |
---|---|---|
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 ) | |
64c796d8 | 61 | __dynamic_array_text( char, cmd, blk_cmd_buf_len(rq) ) |
f62b389e MD |
62 | ), |
63 | ||
64 | TP_fast_assign( | |
65 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
66 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
67 | 0 : blk_rq_pos(rq)) | |
68 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
69 | 0 : blk_rq_sectors(rq)) | |
70 | tp_assign(errors, rq->errors) | |
71 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 MD |
72 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
73 | rq->cmd : (unsigned char *) ""); | |
f62b389e MD |
74 | ), |
75 | ||
76 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
77 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
78 | __print_rwbs_flags(__entry->rwbs), | |
79 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
80 | __get_dynamic_array_len(cmd)), | |
81 | (unsigned long long)__entry->sector, | |
82 | __entry->nr_sector, __entry->errors) | |
83 | ) | |
84 | ||
85 | /** | |
86 | * block_rq_abort - abort block operation request | |
87 | * @q: queue containing the block operation request | |
88 | * @rq: block IO operation request | |
89 | * | |
90 | * Called immediately after pending block IO operation request @rq in | |
91 | * queue @q is aborted. The fields in the operation request @rq | |
92 | * can be examined to determine which device and sectors the pending | |
93 | * operation would access. | |
94 | */ | |
95 | DEFINE_EVENT(block_rq_with_error, block_rq_abort, | |
96 | ||
97 | TP_PROTO(struct request_queue *q, struct request *rq), | |
98 | ||
99 | TP_ARGS(q, rq) | |
100 | ) | |
101 | ||
102 | /** | |
103 | * block_rq_requeue - place block IO request back on a queue | |
104 | * @q: queue holding operation | |
105 | * @rq: block IO operation request | |
106 | * | |
107 | * The block operation request @rq is being placed back into queue | |
108 | * @q. For some reason the request was not completed and needs to be | |
109 | * put back in the queue. | |
110 | */ | |
111 | DEFINE_EVENT(block_rq_with_error, block_rq_requeue, | |
112 | ||
113 | TP_PROTO(struct request_queue *q, struct request *rq), | |
114 | ||
115 | TP_ARGS(q, rq) | |
116 | ) | |
117 | ||
118 | /** | |
119 | * block_rq_complete - block IO operation completed by device driver | |
120 | * @q: queue containing the block operation request | |
121 | * @rq: block operations request | |
122 | * | |
123 | * The block_rq_complete tracepoint event indicates that some portion | |
124 | * of operation request has been completed by the device driver. If | |
125 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
126 | * do for the request. If @rq->bio is non-NULL then there is | |
127 | * additional work required to complete the request. | |
128 | */ | |
129 | DEFINE_EVENT(block_rq_with_error, block_rq_complete, | |
130 | ||
131 | TP_PROTO(struct request_queue *q, struct request *rq), | |
132 | ||
133 | TP_ARGS(q, rq) | |
134 | ) | |
135 | ||
136 | DECLARE_EVENT_CLASS(block_rq, | |
137 | ||
138 | TP_PROTO(struct request_queue *q, struct request *rq), | |
139 | ||
140 | TP_ARGS(q, rq), | |
141 | ||
142 | TP_STRUCT__entry( | |
143 | __field( dev_t, dev ) | |
144 | __field( sector_t, sector ) | |
145 | __field( unsigned int, nr_sector ) | |
146 | __field( unsigned int, bytes ) | |
147 | __field( unsigned int, rwbs ) | |
64c796d8 MD |
148 | __array_text( char, comm, TASK_COMM_LEN ) |
149 | __dynamic_array_text( char, cmd, blk_cmd_buf_len(rq) ) | |
f62b389e MD |
150 | ), |
151 | ||
152 | TP_fast_assign( | |
153 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
154 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
155 | 0 : blk_rq_pos(rq)) | |
156 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
157 | 0 : blk_rq_sectors(rq)) | |
158 | tp_assign(bytes, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
159 | blk_rq_bytes(rq) : 0) | |
160 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 MD |
161 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
162 | rq->cmd : (unsigned char *) ""); | |
f62b389e MD |
163 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
164 | ), | |
165 | ||
166 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
167 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
168 | __print_rwbs_flags(__entry->rwbs), | |
169 | __entry->bytes, | |
170 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
171 | __get_dynamic_array_len(cmd)), | |
172 | (unsigned long long)__entry->sector, | |
173 | __entry->nr_sector, __entry->comm) | |
174 | ) | |
175 | ||
176 | /** | |
177 | * block_rq_insert - insert block operation request into queue | |
178 | * @q: target queue | |
179 | * @rq: block IO operation request | |
180 | * | |
181 | * Called immediately before block operation request @rq is inserted | |
182 | * into queue @q. The fields in the operation request @rq struct can | |
183 | * be examined to determine which device and sectors the pending | |
184 | * operation would access. | |
185 | */ | |
186 | DEFINE_EVENT(block_rq, block_rq_insert, | |
187 | ||
188 | TP_PROTO(struct request_queue *q, struct request *rq), | |
189 | ||
190 | TP_ARGS(q, rq) | |
191 | ) | |
192 | ||
193 | /** | |
194 | * block_rq_issue - issue pending block IO request operation to device driver | |
195 | * @q: queue holding operation | |
196 | * @rq: block IO operation operation request | |
197 | * | |
198 | * Called when block operation request @rq from queue @q is sent to a | |
199 | * device driver for processing. | |
200 | */ | |
201 | DEFINE_EVENT(block_rq, block_rq_issue, | |
202 | ||
203 | TP_PROTO(struct request_queue *q, struct request *rq), | |
204 | ||
205 | TP_ARGS(q, rq) | |
206 | ) | |
207 | ||
208 | /** | |
209 | * block_bio_bounce - used bounce buffer when processing block operation | |
210 | * @q: queue holding the block operation | |
211 | * @bio: block operation | |
212 | * | |
213 | * A bounce buffer was used to handle the block operation @bio in @q. | |
214 | * This occurs when hardware limitations prevent a direct transfer of | |
215 | * data between the @bio data memory area and the IO device. Use of a | |
216 | * bounce buffer requires extra copying of data and decreases | |
217 | * performance. | |
218 | */ | |
219 | TRACE_EVENT(block_bio_bounce, | |
220 | ||
221 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
222 | ||
223 | TP_ARGS(q, bio), | |
224 | ||
225 | TP_STRUCT__entry( | |
226 | __field( dev_t, dev ) | |
227 | __field( sector_t, sector ) | |
228 | __field( unsigned int, nr_sector ) | |
229 | __field( unsigned int, rwbs ) | |
64c796d8 | 230 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
231 | ), |
232 | ||
233 | TP_fast_assign( | |
234 | tp_assign(dev, bio->bi_bdev ? | |
235 | bio->bi_bdev->bd_dev : 0) | |
236 | tp_assign(sector, bio->bi_sector) | |
237 | tp_assign(nr_sector, bio->bi_size >> 9) | |
238 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
239 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
240 | ), | |
241 | ||
242 | TP_printk("%d,%d %s %llu + %u [%s]", | |
243 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
244 | __print_rwbs_flags(__entry->rwbs), | |
245 | (unsigned long long)__entry->sector, | |
246 | __entry->nr_sector, __entry->comm) | |
247 | ) | |
248 | ||
249 | /** | |
250 | * block_bio_complete - completed all work on the block operation | |
251 | * @q: queue holding the block operation | |
252 | * @bio: block operation completed | |
253 | * @error: io error value | |
254 | * | |
255 | * This tracepoint indicates there is no further work to do on this | |
256 | * block IO operation @bio. | |
257 | */ | |
258 | TRACE_EVENT(block_bio_complete, | |
259 | ||
260 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), | |
261 | ||
262 | TP_ARGS(q, bio, error), | |
263 | ||
264 | TP_STRUCT__entry( | |
265 | __field( dev_t, dev ) | |
266 | __field( sector_t, sector ) | |
267 | __field( unsigned, nr_sector ) | |
268 | __field( int, error ) | |
269 | __field( unsigned int, rwbs ) | |
270 | ), | |
271 | ||
272 | TP_fast_assign( | |
273 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
274 | tp_assign(sector, bio->bi_sector) | |
275 | tp_assign(nr_sector, bio->bi_size >> 9) | |
276 | tp_assign(error, error) | |
277 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
278 | ), | |
279 | ||
280 | TP_printk("%d,%d %s %llu + %u [%d]", | |
281 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
282 | __print_rwbs_flags(__entry->rwbs), | |
283 | (unsigned long long)__entry->sector, | |
284 | __entry->nr_sector, __entry->error) | |
285 | ) | |
286 | ||
287 | DECLARE_EVENT_CLASS(block_bio, | |
288 | ||
289 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
290 | ||
291 | TP_ARGS(q, bio), | |
292 | ||
293 | TP_STRUCT__entry( | |
294 | __field( dev_t, dev ) | |
295 | __field( sector_t, sector ) | |
296 | __field( unsigned int, nr_sector ) | |
297 | __field( unsigned int, rwbs ) | |
64c796d8 | 298 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
299 | ), |
300 | ||
301 | TP_fast_assign( | |
302 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
303 | tp_assign(sector, bio->bi_sector) | |
304 | tp_assign(nr_sector, bio->bi_size >> 9) | |
305 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
306 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
307 | ), | |
308 | ||
309 | TP_printk("%d,%d %s %llu + %u [%s]", | |
310 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
311 | __print_rwbs_flags(__entry->rwbs), | |
312 | (unsigned long long)__entry->sector, | |
313 | __entry->nr_sector, __entry->comm) | |
314 | ) | |
315 | ||
316 | /** | |
317 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
318 | * @q: queue holding operation | |
319 | * @bio: new block operation to merge | |
320 | * | |
321 | * Merging block request @bio to the end of an existing block request | |
322 | * in queue @q. | |
323 | */ | |
324 | DEFINE_EVENT(block_bio, block_bio_backmerge, | |
325 | ||
326 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
327 | ||
328 | TP_ARGS(q, bio) | |
329 | ) | |
330 | ||
331 | /** | |
332 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
333 | * @q: queue holding operation | |
334 | * @bio: new block operation to merge | |
335 | * | |
336 | * Merging block IO operation @bio to the beginning of an existing block | |
337 | * operation in queue @q. | |
338 | */ | |
339 | DEFINE_EVENT(block_bio, block_bio_frontmerge, | |
340 | ||
341 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
342 | ||
343 | TP_ARGS(q, bio) | |
344 | ) | |
345 | ||
346 | /** | |
347 | * block_bio_queue - putting new block IO operation in queue | |
348 | * @q: queue holding operation | |
349 | * @bio: new block operation | |
350 | * | |
351 | * About to place the block IO operation @bio into queue @q. | |
352 | */ | |
353 | DEFINE_EVENT(block_bio, block_bio_queue, | |
354 | ||
355 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
356 | ||
357 | TP_ARGS(q, bio) | |
358 | ) | |
359 | ||
360 | DECLARE_EVENT_CLASS(block_get_rq, | |
361 | ||
362 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
363 | ||
364 | TP_ARGS(q, bio, rw), | |
365 | ||
366 | TP_STRUCT__entry( | |
367 | __field( dev_t, dev ) | |
368 | __field( sector_t, sector ) | |
369 | __field( unsigned int, nr_sector ) | |
370 | __field( unsigned int, rwbs ) | |
64c796d8 | 371 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
372 | ), |
373 | ||
374 | TP_fast_assign( | |
375 | tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0) | |
376 | tp_assign(sector, bio ? bio->bi_sector : 0) | |
377 | tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0) | |
378 | blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0, | |
379 | bio ? bio->bi_size >> 9 : 0) | |
380 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
381 | ), | |
382 | ||
383 | TP_printk("%d,%d %s %llu + %u [%s]", | |
384 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
385 | __print_rwbs_flags(__entry->rwbs), | |
386 | (unsigned long long)__entry->sector, | |
387 | __entry->nr_sector, __entry->comm) | |
388 | ) | |
389 | ||
390 | /** | |
391 | * block_getrq - get a free request entry in queue for block IO operations | |
392 | * @q: queue for operations | |
393 | * @bio: pending block IO operation | |
394 | * @rw: low bit indicates a read (%0) or a write (%1) | |
395 | * | |
396 | * A request struct for queue @q has been allocated to handle the | |
397 | * block IO operation @bio. | |
398 | */ | |
399 | DEFINE_EVENT(block_get_rq, block_getrq, | |
400 | ||
401 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
402 | ||
403 | TP_ARGS(q, bio, rw) | |
404 | ) | |
405 | ||
406 | /** | |
407 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation | |
408 | * @q: queue for operation | |
409 | * @bio: pending block IO operation | |
410 | * @rw: low bit indicates a read (%0) or a write (%1) | |
411 | * | |
412 | * In the case where a request struct cannot be provided for queue @q | |
413 | * the process needs to wait for an request struct to become | |
414 | * available. This tracepoint event is generated each time the | |
415 | * process goes to sleep waiting for request struct become available. | |
416 | */ | |
417 | DEFINE_EVENT(block_get_rq, block_sleeprq, | |
418 | ||
419 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
420 | ||
421 | TP_ARGS(q, bio, rw) | |
422 | ) | |
423 | ||
424 | /** | |
425 | * block_plug - keep operations requests in request queue | |
426 | * @q: request queue to plug | |
427 | * | |
428 | * Plug the request queue @q. Do not allow block operation requests | |
429 | * to be sent to the device driver. Instead, accumulate requests in | |
430 | * the queue to improve throughput performance of the block device. | |
431 | */ | |
432 | TRACE_EVENT(block_plug, | |
433 | ||
434 | TP_PROTO(struct request_queue *q), | |
435 | ||
436 | TP_ARGS(q), | |
437 | ||
438 | TP_STRUCT__entry( | |
64c796d8 | 439 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
440 | ), |
441 | ||
442 | TP_fast_assign( | |
443 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
444 | ), | |
445 | ||
446 | TP_printk("[%s]", __entry->comm) | |
447 | ) | |
448 | ||
449 | DECLARE_EVENT_CLASS(block_unplug, | |
450 | ||
451 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), | |
452 | ||
453 | TP_ARGS(q, depth, explicit), | |
454 | ||
455 | TP_STRUCT__entry( | |
456 | __field( int, nr_rq ) | |
64c796d8 | 457 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
458 | ), |
459 | ||
460 | TP_fast_assign( | |
461 | tp_assign(nr_rq, depth) | |
462 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
463 | ), | |
464 | ||
465 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
466 | ) | |
467 | ||
468 | /** | |
469 | * block_unplug - release of operations requests in request queue | |
470 | * @q: request queue to unplug | |
471 | * @depth: number of requests just added to the queue | |
472 | * @explicit: whether this was an explicit unplug, or one from schedule() | |
473 | * | |
474 | * Unplug request queue @q because device driver is scheduled to work | |
475 | * on elements in the request queue. | |
476 | */ | |
477 | DEFINE_EVENT(block_unplug, block_unplug, | |
478 | ||
479 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), | |
480 | ||
481 | TP_ARGS(q, depth, explicit) | |
482 | ) | |
483 | ||
484 | /** | |
485 | * block_split - split a single bio struct into two bio structs | |
486 | * @q: queue containing the bio | |
487 | * @bio: block operation being split | |
488 | * @new_sector: The starting sector for the new bio | |
489 | * | |
490 | * The bio request @bio in request queue @q needs to be split into two | |
491 | * bio requests. The newly created @bio request starts at | |
492 | * @new_sector. This split may be required due to hardware limitation | |
493 | * such as operation crossing device boundaries in a RAID system. | |
494 | */ | |
495 | TRACE_EVENT(block_split, | |
496 | ||
497 | TP_PROTO(struct request_queue *q, struct bio *bio, | |
498 | unsigned int new_sector), | |
499 | ||
500 | TP_ARGS(q, bio, new_sector), | |
501 | ||
502 | TP_STRUCT__entry( | |
503 | __field( dev_t, dev ) | |
504 | __field( sector_t, sector ) | |
505 | __field( sector_t, new_sector ) | |
506 | __field( unsigned int, rwbs ) | |
64c796d8 | 507 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
508 | ), |
509 | ||
510 | TP_fast_assign( | |
511 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
512 | tp_assign(sector, bio->bi_sector) | |
513 | tp_assign(new_sector, new_sector) | |
514 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
515 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
516 | ), | |
517 | ||
518 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
519 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
520 | __print_rwbs_flags(__entry->rwbs), | |
521 | (unsigned long long)__entry->sector, | |
522 | (unsigned long long)__entry->new_sector, | |
523 | __entry->comm) | |
524 | ) | |
525 | ||
526 | /** | |
527 | * block_bio_remap - map request for a logical device to the raw device | |
528 | * @q: queue holding the operation | |
529 | * @bio: revised operation | |
530 | * @dev: device for the operation | |
531 | * @from: original sector for the operation | |
532 | * | |
533 | * An operation for a logical device has been mapped to the | |
534 | * raw block device. | |
535 | */ | |
536 | TRACE_EVENT(block_bio_remap, | |
537 | ||
538 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
539 | sector_t from), | |
540 | ||
541 | TP_ARGS(q, bio, dev, from), | |
542 | ||
543 | TP_STRUCT__entry( | |
544 | __field( dev_t, dev ) | |
545 | __field( sector_t, sector ) | |
546 | __field( unsigned int, nr_sector ) | |
547 | __field( dev_t, old_dev ) | |
548 | __field( sector_t, old_sector ) | |
549 | __field( unsigned int, rwbs ) | |
550 | ), | |
551 | ||
552 | TP_fast_assign( | |
553 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
554 | tp_assign(sector, bio->bi_sector) | |
555 | tp_assign(nr_sector, bio->bi_size >> 9) | |
556 | tp_assign(old_dev, dev) | |
557 | tp_assign(old_sector, from) | |
558 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
559 | ), | |
560 | ||
561 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
562 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
563 | __print_rwbs_flags(__entry->rwbs), | |
564 | (unsigned long long)__entry->sector, | |
565 | __entry->nr_sector, | |
566 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
567 | (unsigned long long)__entry->old_sector) | |
568 | ) | |
569 | ||
570 | /** | |
571 | * block_rq_remap - map request for a block operation request | |
572 | * @q: queue holding the operation | |
573 | * @rq: block IO operation request | |
574 | * @dev: device for the operation | |
575 | * @from: original sector for the operation | |
576 | * | |
577 | * The block operation request @rq in @q has been remapped. The block | |
578 | * operation request @rq holds the current information and @from hold | |
579 | * the original sector. | |
580 | */ | |
581 | TRACE_EVENT(block_rq_remap, | |
582 | ||
583 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
584 | sector_t from), | |
585 | ||
586 | TP_ARGS(q, rq, dev, from), | |
587 | ||
588 | TP_STRUCT__entry( | |
589 | __field( dev_t, dev ) | |
590 | __field( sector_t, sector ) | |
591 | __field( unsigned int, nr_sector ) | |
592 | __field( dev_t, old_dev ) | |
593 | __field( sector_t, old_sector ) | |
594 | __field( unsigned int, rwbs ) | |
595 | ), | |
596 | ||
597 | TP_fast_assign( | |
598 | tp_assign(dev, disk_devt(rq->rq_disk)) | |
599 | tp_assign(sector, blk_rq_pos(rq)) | |
600 | tp_assign(nr_sector, blk_rq_sectors(rq)) | |
601 | tp_assign(old_dev, dev) | |
602 | tp_assign(old_sector, from) | |
603 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
604 | ), | |
605 | ||
606 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
607 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
608 | __print_rwbs_flags(__entry->rwbs), | |
609 | (unsigned long long)__entry->sector, | |
610 | __entry->nr_sector, | |
611 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
612 | (unsigned long long)__entry->old_sector) | |
613 | ) | |
614 | ||
615 | #undef __print_rwbs_flags | |
616 | #undef blk_fill_rwbs | |
617 | ||
618 | #endif /* _TRACE_BLOCK_H */ | |
619 | ||
620 | /* This part must be outside protection */ | |
5b88d86e | 621 | #include "../../../probes/define_trace.h" |
f62b389e | 622 |