Branch data Line data Source code
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/buffer_head.h>
10 : : #include <linux/tracepoint.h>
11 : :
12 : : #define RWBS_LEN 8
13 : :
14 [ # # # # ]: 0 : DECLARE_EVENT_CLASS(block_buffer,
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
15 : :
16 : : TP_PROTO(struct buffer_head *bh),
17 : :
18 : : TP_ARGS(bh),
19 : :
20 : : TP_STRUCT__entry (
21 : : __field( dev_t, dev )
22 : : __field( sector_t, sector )
23 : : __field( size_t, size )
24 : : ),
25 : :
26 : : TP_fast_assign(
27 : : __entry->dev = bh->b_bdev->bd_dev;
28 : : __entry->sector = bh->b_blocknr;
29 : : __entry->size = bh->b_size;
30 : : ),
31 : :
32 : : TP_printk("%d,%d sector=%llu size=%zu",
33 : : MAJOR(__entry->dev), MINOR(__entry->dev),
34 : : (unsigned long long)__entry->sector, __entry->size
35 : : )
36 : : );
37 : :
38 : : /**
39 : : * block_touch_buffer - mark a buffer accessed
40 : : * @bh: buffer_head being touched
41 : : *
42 : : * Called from touch_buffer().
43 : : */
44 [ - + # # ]: 14354989 : DEFINE_EVENT(block_buffer, block_touch_buffer,
[ # # ]
[ # # # # ]
[ # # ]
45 : :
46 : : TP_PROTO(struct buffer_head *bh),
47 : :
48 : : TP_ARGS(bh)
49 : : );
50 : :
51 : : /**
52 : : * block_dirty_buffer - mark a buffer dirty
53 : : * @bh: buffer_head being dirtied
54 : : *
55 : : * Called from mark_buffer_dirty().
56 : : */
57 [ - + # # ]: 7417484 : DEFINE_EVENT(block_buffer, block_dirty_buffer,
[ # # ]
58 : :
59 : : TP_PROTO(struct buffer_head *bh),
60 : :
61 : : TP_ARGS(bh)
62 : : );
63 : :
64 [ # # # # ]: 0 : DECLARE_EVENT_CLASS(block_rq_with_error,
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
65 : :
66 : : TP_PROTO(struct request_queue *q, struct request *rq),
67 : :
68 : : TP_ARGS(q, rq),
69 : :
70 : : TP_STRUCT__entry(
71 : : __field( dev_t, dev )
72 : : __field( sector_t, sector )
73 : : __field( unsigned int, nr_sector )
74 : : __field( int, errors )
75 : : __array( char, rwbs, RWBS_LEN )
76 : : __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
77 : : ),
78 : :
79 : : TP_fast_assign(
80 : : __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
81 : : __entry->sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
82 : : 0 : blk_rq_pos(rq);
83 : : __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
84 : : 0 : blk_rq_sectors(rq);
85 : : __entry->errors = rq->errors;
86 : :
87 : : blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
88 : : blk_dump_cmd(__get_str(cmd), rq);
89 : : ),
90 : :
91 : : TP_printk("%d,%d %s (%s) %llu + %u [%d]",
92 : : MAJOR(__entry->dev), MINOR(__entry->dev),
93 : : __entry->rwbs, __get_str(cmd),
94 : : (unsigned long long)__entry->sector,
95 : : __entry->nr_sector, __entry->errors)
96 : : );
97 : :
98 : : /**
99 : : * block_rq_abort - abort block operation request
100 : : * @q: queue containing the block operation request
101 : : * @rq: block IO operation request
102 : : *
103 : : * Called immediately after pending block IO operation request @rq in
104 : : * queue @q is aborted. The fields in the operation request @rq
105 : : * can be examined to determine which device and sectors the pending
106 : : * operation would access.
107 : : */
108 [ # # # # ]: 0 : DEFINE_EVENT(block_rq_with_error, block_rq_abort,
[ # # ]
109 : :
110 : : TP_PROTO(struct request_queue *q, struct request *rq),
111 : :
112 : : TP_ARGS(q, rq)
113 : : );
114 : :
115 : : /**
116 : : * block_rq_requeue - place block IO request back on a queue
117 : : * @q: queue holding operation
118 : : * @rq: block IO operation request
119 : : *
120 : : * The block operation request @rq is being placed back into queue
121 : : * @q. For some reason the request was not completed and needs to be
122 : : * put back in the queue.
123 : : */
124 [ # # # # ]: 0 : DEFINE_EVENT(block_rq_with_error, block_rq_requeue,
[ # # ]
125 : :
126 : : TP_PROTO(struct request_queue *q, struct request *rq),
127 : :
128 : : TP_ARGS(q, rq)
129 : : );
130 : :
131 : : /**
132 : : * block_rq_complete - block IO operation completed by device driver
133 : : * @q: queue containing the block operation request
134 : : * @rq: block operations request
135 : : *
136 : : * The block_rq_complete tracepoint event indicates that some portion
137 : : * of operation request has been completed by the device driver. If
138 : : * the @rq->bio is %NULL, then there is absolutely no additional work to
139 : : * do for the request. If @rq->bio is non-NULL then there is
140 : : * additional work required to complete the request.
141 : : */
142 [ - + # # ]: 394901 : DEFINE_EVENT(block_rq_with_error, block_rq_complete,
[ # # ]
143 : :
144 : : TP_PROTO(struct request_queue *q, struct request *rq),
145 : :
146 : : TP_ARGS(q, rq)
147 : : );
148 : :
149 [ # # # # ]: 0 : DECLARE_EVENT_CLASS(block_rq,
[ # # ][ # # ]
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[ # # ][ # # ]
[ # # ][ # # ]
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150 : :
151 : : TP_PROTO(struct request_queue *q, struct request *rq),
152 : :
153 : : TP_ARGS(q, rq),
154 : :
155 : : TP_STRUCT__entry(
156 : : __field( dev_t, dev )
157 : : __field( sector_t, sector )
158 : : __field( unsigned int, nr_sector )
159 : : __field( unsigned int, bytes )
160 : : __array( char, rwbs, RWBS_LEN )
161 : : __array( char, comm, TASK_COMM_LEN )
162 : : __dynamic_array( char, cmd, blk_cmd_buf_len(rq) )
163 : : ),
164 : :
165 : : TP_fast_assign(
166 : : __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
167 : : __entry->sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
168 : : 0 : blk_rq_pos(rq);
169 : : __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
170 : : 0 : blk_rq_sectors(rq);
171 : : __entry->bytes = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ?
172 : : blk_rq_bytes(rq) : 0;
173 : :
174 : : blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
175 : : blk_dump_cmd(__get_str(cmd), rq);
176 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
177 : : ),
178 : :
179 : : TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
180 : : MAJOR(__entry->dev), MINOR(__entry->dev),
181 : : __entry->rwbs, __entry->bytes, __get_str(cmd),
182 : : (unsigned long long)__entry->sector,
183 : : __entry->nr_sector, __entry->comm)
184 : : );
185 : :
186 : : /**
187 : : * block_rq_insert - insert block operation request into queue
188 : : * @q: target queue
189 : : * @rq: block IO operation request
190 : : *
191 : : * Called immediately before block operation request @rq is inserted
192 : : * into queue @q. The fields in the operation request @rq struct can
193 : : * be examined to determine which device and sectors the pending
194 : : * operation would access.
195 : : */
196 [ - + # # ]: 435066 : DEFINE_EVENT(block_rq, block_rq_insert,
[ # # ]
197 : :
198 : : TP_PROTO(struct request_queue *q, struct request *rq),
199 : :
200 : : TP_ARGS(q, rq)
201 : : );
202 : :
203 : : /**
204 : : * block_rq_issue - issue pending block IO request operation to device driver
205 : : * @q: queue holding operation
206 : : * @rq: block IO operation operation request
207 : : *
208 : : * Called when block operation request @rq from queue @q is sent to a
209 : : * device driver for processing.
210 : : */
211 [ - + # # ]: 433719 : DEFINE_EVENT(block_rq, block_rq_issue,
[ # # ]
212 : :
213 : : TP_PROTO(struct request_queue *q, struct request *rq),
214 : :
215 : : TP_ARGS(q, rq)
216 : : );
217 : :
218 : : /**
219 : : * block_bio_bounce - used bounce buffer when processing block operation
220 : : * @q: queue holding the block operation
221 : : * @bio: block operation
222 : : *
223 : : * A bounce buffer was used to handle the block operation @bio in @q.
224 : : * This occurs when hardware limitations prevent a direct transfer of
225 : : * data between the @bio data memory area and the IO device. Use of a
226 : : * bounce buffer requires extra copying of data and decreases
227 : : * performance.
228 : : */
229 [ # # # # ]: 259215 : TRACE_EVENT(block_bio_bounce,
[ # # ]
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ - + # # ]
230 : :
231 : : TP_PROTO(struct request_queue *q, struct bio *bio),
232 : :
233 : : TP_ARGS(q, bio),
234 : :
235 : : TP_STRUCT__entry(
236 : : __field( dev_t, dev )
237 : : __field( sector_t, sector )
238 : : __field( unsigned int, nr_sector )
239 : : __array( char, rwbs, RWBS_LEN )
240 : : __array( char, comm, TASK_COMM_LEN )
241 : : ),
242 : :
243 : : TP_fast_assign(
244 : : __entry->dev = bio->bi_bdev ?
245 : : bio->bi_bdev->bd_dev : 0;
246 : : __entry->sector = bio->bi_sector;
247 : : __entry->nr_sector = bio_sectors(bio);
248 : : blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
249 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
250 : : ),
251 : :
252 : : TP_printk("%d,%d %s %llu + %u [%s]",
253 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
254 : : (unsigned long long)__entry->sector,
255 : : __entry->nr_sector, __entry->comm)
256 : : );
257 : :
258 : : /**
259 : : * block_bio_complete - completed all work on the block operation
260 : : * @q: queue holding the block operation
261 : : * @bio: block operation completed
262 : : * @error: io error value
263 : : *
264 : : * This tracepoint indicates there is no further work to do on this
265 : : * block IO operation @bio.
266 : : */
267 [ # # # # ]: 0 : TRACE_EVENT(block_bio_complete,
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
[ # # # # ]
[ # # ]
268 : :
269 : : TP_PROTO(struct request_queue *q, struct bio *bio, int error),
270 : :
271 : : TP_ARGS(q, bio, error),
272 : :
273 : : TP_STRUCT__entry(
274 : : __field( dev_t, dev )
275 : : __field( sector_t, sector )
276 : : __field( unsigned, nr_sector )
277 : : __field( int, error )
278 : : __array( char, rwbs, RWBS_LEN)
279 : : ),
280 : :
281 : : TP_fast_assign(
282 : : __entry->dev = bio->bi_bdev->bd_dev;
283 : : __entry->sector = bio->bi_sector;
284 : : __entry->nr_sector = bio_sectors(bio);
285 : : __entry->error = error;
286 : : blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
287 : : ),
288 : :
289 : : TP_printk("%d,%d %s %llu + %u [%d]",
290 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
291 : : (unsigned long long)__entry->sector,
292 : : __entry->nr_sector, __entry->error)
293 : : );
294 : :
295 [ # # # # ]: 0 : DECLARE_EVENT_CLASS(block_bio_merge,
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
296 : :
297 : : TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
298 : :
299 : : TP_ARGS(q, rq, bio),
300 : :
301 : : TP_STRUCT__entry(
302 : : __field( dev_t, dev )
303 : : __field( sector_t, sector )
304 : : __field( unsigned int, nr_sector )
305 : : __array( char, rwbs, RWBS_LEN )
306 : : __array( char, comm, TASK_COMM_LEN )
307 : : ),
308 : :
309 : : TP_fast_assign(
310 : : __entry->dev = bio->bi_bdev->bd_dev;
311 : : __entry->sector = bio->bi_sector;
312 : : __entry->nr_sector = bio_sectors(bio);
313 : : blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
314 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
315 : : ),
316 : :
317 : : TP_printk("%d,%d %s %llu + %u [%s]",
318 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
319 : : (unsigned long long)__entry->sector,
320 : : __entry->nr_sector, __entry->comm)
321 : : );
322 : :
323 : : /**
324 : : * block_bio_backmerge - merging block operation to the end of an existing operation
325 : : * @q: queue holding operation
326 : : * @rq: request bio is being merged into
327 : : * @bio: new block operation to merge
328 : : *
329 : : * Merging block request @bio to the end of an existing block request
330 : : * in queue @q.
331 : : */
332 [ - + # # ]: 97624 : DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
[ # # ]
333 : :
334 : : TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
335 : :
336 : : TP_ARGS(q, rq, bio)
337 : : );
338 : :
339 : : /**
340 : : * block_bio_frontmerge - merging block operation to the beginning of an existing operation
341 : : * @q: queue holding operation
342 : : * @rq: request bio is being merged into
343 : : * @bio: new block operation to merge
344 : : *
345 : : * Merging block IO operation @bio to the beginning of an existing block
346 : : * operation in queue @q.
347 : : */
348 [ - + # # ]: 707 : DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
[ # # ]
349 : :
350 : : TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
351 : :
352 : : TP_ARGS(q, rq, bio)
353 : : );
354 : :
355 : : /**
356 : : * block_bio_queue - putting new block IO operation in queue
357 : : * @q: queue holding operation
358 : : * @bio: new block operation
359 : : *
360 : : * About to place the block IO operation @bio into queue @q.
361 : : */
362 [ - + # # ]: 494557 : TRACE_EVENT(block_bio_queue,
[ # # ]
[ # # # # ]
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
363 : :
364 : : TP_PROTO(struct request_queue *q, struct bio *bio),
365 : :
366 : : TP_ARGS(q, bio),
367 : :
368 : : TP_STRUCT__entry(
369 : : __field( dev_t, dev )
370 : : __field( sector_t, sector )
371 : : __field( unsigned int, nr_sector )
372 : : __array( char, rwbs, RWBS_LEN )
373 : : __array( char, comm, TASK_COMM_LEN )
374 : : ),
375 : :
376 : : TP_fast_assign(
377 : : __entry->dev = bio->bi_bdev->bd_dev;
378 : : __entry->sector = bio->bi_sector;
379 : : __entry->nr_sector = bio_sectors(bio);
380 : : blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
381 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
382 : : ),
383 : :
384 : : TP_printk("%d,%d %s %llu + %u [%s]",
385 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
386 : : (unsigned long long)__entry->sector,
387 : : __entry->nr_sector, __entry->comm)
388 : : );
389 : :
390 [ # # # # ]: 0 : DECLARE_EVENT_CLASS(block_get_rq,
[ # # ][ # # ]
[ # # ][ # # ]
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
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[ # # ][ # # ]
[ # # ]
391 : :
392 : : TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
393 : :
394 : : TP_ARGS(q, bio, rw),
395 : :
396 : : TP_STRUCT__entry(
397 : : __field( dev_t, dev )
398 : : __field( sector_t, sector )
399 : : __field( unsigned int, nr_sector )
400 : : __array( char, rwbs, RWBS_LEN )
401 : : __array( char, comm, TASK_COMM_LEN )
402 : : ),
403 : :
404 : : TP_fast_assign(
405 : : __entry->dev = bio ? bio->bi_bdev->bd_dev : 0;
406 : : __entry->sector = bio ? bio->bi_sector : 0;
407 : : __entry->nr_sector = bio ? bio_sectors(bio) : 0;
408 : : blk_fill_rwbs(__entry->rwbs,
409 : : bio ? bio->bi_rw : 0, __entry->nr_sector);
410 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
411 : : ),
412 : :
413 : : TP_printk("%d,%d %s %llu + %u [%s]",
414 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
415 : : (unsigned long long)__entry->sector,
416 : : __entry->nr_sector, __entry->comm)
417 : : );
418 : :
419 : : /**
420 : : * block_getrq - get a free request entry in queue for block IO operations
421 : : * @q: queue for operations
422 : : * @bio: pending block IO operation
423 : : * @rw: low bit indicates a read (%0) or a write (%1)
424 : : *
425 : : * A request struct for queue @q has been allocated to handle the
426 : : * block IO operation @bio.
427 : : */
428 [ - + # # ]: 435048 : DEFINE_EVENT(block_get_rq, block_getrq,
[ # # ]
429 : :
430 : : TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
431 : :
432 : : TP_ARGS(q, bio, rw)
433 : : );
434 : :
435 : : /**
436 : : * block_sleeprq - waiting to get a free request entry in queue for block IO operation
437 : : * @q: queue for operation
438 : : * @bio: pending block IO operation
439 : : * @rw: low bit indicates a read (%0) or a write (%1)
440 : : *
441 : : * In the case where a request struct cannot be provided for queue @q
442 : : * the process needs to wait for an request struct to become
443 : : * available. This tracepoint event is generated each time the
444 : : * process goes to sleep waiting for request struct become available.
445 : : */
446 [ - + # # ]: 685 : DEFINE_EVENT(block_get_rq, block_sleeprq,
[ # # ]
447 : :
448 : : TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
449 : :
450 : : TP_ARGS(q, bio, rw)
451 : : );
452 : :
453 : : /**
454 : : * block_plug - keep operations requests in request queue
455 : : * @q: request queue to plug
456 : : *
457 : : * Plug the request queue @q. Do not allow block operation requests
458 : : * to be sent to the device driver. Instead, accumulate requests in
459 : : * the queue to improve throughput performance of the block device.
460 : : */
461 [ - + # # ]: 241620 : TRACE_EVENT(block_plug,
[ # # ]
[ - + # # ]
[ # # ]
[ # # # # ]
[ # # # # ]
[ # # ][ # # ]
[ # # ]
462 : :
463 : : TP_PROTO(struct request_queue *q),
464 : :
465 : : TP_ARGS(q),
466 : :
467 : : TP_STRUCT__entry(
468 : : __array( char, comm, TASK_COMM_LEN )
469 : : ),
470 : :
471 : : TP_fast_assign(
472 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
473 : : ),
474 : :
475 : : TP_printk("[%s]", __entry->comm)
476 : : );
477 : :
478 [ # # # # ]: 0 : DECLARE_EVENT_CLASS(block_unplug,
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
479 : :
480 : : TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
481 : :
482 : : TP_ARGS(q, depth, explicit),
483 : :
484 : : TP_STRUCT__entry(
485 : : __field( int, nr_rq )
486 : : __array( char, comm, TASK_COMM_LEN )
487 : : ),
488 : :
489 : : TP_fast_assign(
490 : : __entry->nr_rq = depth;
491 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
492 : : ),
493 : :
494 : : TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
495 : : );
496 : :
497 : : /**
498 : : * block_unplug - release of operations requests in request queue
499 : : * @q: request queue to unplug
500 : : * @depth: number of requests just added to the queue
501 : : * @explicit: whether this was an explicit unplug, or one from schedule()
502 : : *
503 : : * Unplug request queue @q because device driver is scheduled to work
504 : : * on elements in the request queue.
505 : : */
506 [ - + # # ]: 242071 : DEFINE_EVENT(block_unplug, block_unplug,
[ # # ]
507 : :
508 : : TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
509 : :
510 : : TP_ARGS(q, depth, explicit)
511 : : );
512 : :
513 : : /**
514 : : * block_split - split a single bio struct into two bio structs
515 : : * @q: queue containing the bio
516 : : * @bio: block operation being split
517 : : * @new_sector: The starting sector for the new bio
518 : : *
519 : : * The bio request @bio in request queue @q needs to be split into two
520 : : * bio requests. The newly created @bio request starts at
521 : : * @new_sector. This split may be required due to hardware limitation
522 : : * such as operation crossing device boundaries in a RAID system.
523 : : */
524 [ # # # # ]: 0 : TRACE_EVENT(block_split,
[ # # ]
[ # # # # ]
[ # # # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ]
525 : :
526 : : TP_PROTO(struct request_queue *q, struct bio *bio,
527 : : unsigned int new_sector),
528 : :
529 : : TP_ARGS(q, bio, new_sector),
530 : :
531 : : TP_STRUCT__entry(
532 : : __field( dev_t, dev )
533 : : __field( sector_t, sector )
534 : : __field( sector_t, new_sector )
535 : : __array( char, rwbs, RWBS_LEN )
536 : : __array( char, comm, TASK_COMM_LEN )
537 : : ),
538 : :
539 : : TP_fast_assign(
540 : : __entry->dev = bio->bi_bdev->bd_dev;
541 : : __entry->sector = bio->bi_sector;
542 : : __entry->new_sector = new_sector;
543 : : blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
544 : : memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
545 : : ),
546 : :
547 : : TP_printk("%d,%d %s %llu / %llu [%s]",
548 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
549 : : (unsigned long long)__entry->sector,
550 : : (unsigned long long)__entry->new_sector,
551 : : __entry->comm)
552 : : );
553 : :
554 : : /**
555 : : * block_bio_remap - map request for a logical device to the raw device
556 : : * @q: queue holding the operation
557 : : * @bio: revised operation
558 : : * @dev: device for the operation
559 : : * @from: original sector for the operation
560 : : *
561 : : * An operation for a logical device has been mapped to the
562 : : * raw block device.
563 : : */
564 [ - + # # ]: 494530 : TRACE_EVENT(block_bio_remap,
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565 : :
566 : : TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
567 : : sector_t from),
568 : :
569 : : TP_ARGS(q, bio, dev, from),
570 : :
571 : : TP_STRUCT__entry(
572 : : __field( dev_t, dev )
573 : : __field( sector_t, sector )
574 : : __field( unsigned int, nr_sector )
575 : : __field( dev_t, old_dev )
576 : : __field( sector_t, old_sector )
577 : : __array( char, rwbs, RWBS_LEN)
578 : : ),
579 : :
580 : : TP_fast_assign(
581 : : __entry->dev = bio->bi_bdev->bd_dev;
582 : : __entry->sector = bio->bi_sector;
583 : : __entry->nr_sector = bio_sectors(bio);
584 : : __entry->old_dev = dev;
585 : : __entry->old_sector = from;
586 : : blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_size);
587 : : ),
588 : :
589 : : TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
590 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
591 : : (unsigned long long)__entry->sector,
592 : : __entry->nr_sector,
593 : : MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
594 : : (unsigned long long)__entry->old_sector)
595 : : );
596 : :
597 : : /**
598 : : * block_rq_remap - map request for a block operation request
599 : : * @q: queue holding the operation
600 : : * @rq: block IO operation request
601 : : * @dev: device for the operation
602 : : * @from: original sector for the operation
603 : : *
604 : : * The block operation request @rq in @q has been remapped. The block
605 : : * operation request @rq holds the current information and @from hold
606 : : * the original sector.
607 : : */
608 [ # # # # ]: 0 : TRACE_EVENT(block_rq_remap,
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609 : :
610 : : TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev,
611 : : sector_t from),
612 : :
613 : : TP_ARGS(q, rq, dev, from),
614 : :
615 : : TP_STRUCT__entry(
616 : : __field( dev_t, dev )
617 : : __field( sector_t, sector )
618 : : __field( unsigned int, nr_sector )
619 : : __field( dev_t, old_dev )
620 : : __field( sector_t, old_sector )
621 : : __field( unsigned int, nr_bios )
622 : : __array( char, rwbs, RWBS_LEN)
623 : : ),
624 : :
625 : : TP_fast_assign(
626 : : __entry->dev = disk_devt(rq->rq_disk);
627 : : __entry->sector = blk_rq_pos(rq);
628 : : __entry->nr_sector = blk_rq_sectors(rq);
629 : : __entry->old_dev = dev;
630 : : __entry->old_sector = from;
631 : : __entry->nr_bios = blk_rq_count_bios(rq);
632 : : blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
633 : : ),
634 : :
635 : : TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u",
636 : : MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
637 : : (unsigned long long)__entry->sector,
638 : : __entry->nr_sector,
639 : : MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
640 : : (unsigned long long)__entry->old_sector, __entry->nr_bios)
641 : : );
642 : :
643 : : #endif /* _TRACE_BLOCK_H */
644 : :
645 : : /* This part must be outside protection */
646 : : #include <trace/define_trace.h>
647 : :
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