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Commit | Line | Data |
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d0b6e04a LZ |
1 | #undef TRACE_SYSTEM |
2 | #define TRACE_SYSTEM block | |
3 | ||
55782138 LZ |
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> | |
5305cb83 | 9 | #include <linux/buffer_head.h> |
55782138 LZ |
10 | #include <linux/tracepoint.h> |
11 | ||
c09c47ca NK |
12 | #define RWBS_LEN 8 |
13 | ||
5305cb83 TH |
14 | 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 | 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 | DEFINE_EVENT(block_buffer, block_dirty_buffer, | |
58 | ||
59 | TP_PROTO(struct buffer_head *bh), | |
60 | ||
61 | TP_ARGS(bh) | |
62 | ); | |
63 | ||
77ca1e02 | 64 | DECLARE_EVENT_CLASS(block_rq_with_error, |
55782138 LZ |
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 ) | |
c09c47ca | 75 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
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; | |
33659ebb CH |
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); | |
55782138 LZ |
85 | __entry->errors = rq->errors; |
86 | ||
2d3a8497 | 87 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
55782138 LZ |
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), | |
6556d1df SR |
94 | (unsigned long long)__entry->sector, |
95 | __entry->nr_sector, __entry->errors) | |
55782138 LZ |
96 | ); |
97 | ||
881245dc WC |
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 | */ | |
77ca1e02 | 108 | DEFINE_EVENT(block_rq_with_error, block_rq_abort, |
55782138 LZ |
109 | |
110 | TP_PROTO(struct request_queue *q, struct request *rq), | |
111 | ||
77ca1e02 LZ |
112 | TP_ARGS(q, rq) |
113 | ); | |
55782138 | 114 | |
881245dc WC |
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 | */ | |
77ca1e02 | 124 | DEFINE_EVENT(block_rq_with_error, block_rq_requeue, |
55782138 | 125 | |
77ca1e02 | 126 | TP_PROTO(struct request_queue *q, struct request *rq), |
55782138 | 127 | |
77ca1e02 LZ |
128 | TP_ARGS(q, rq) |
129 | ); | |
55782138 | 130 | |
881245dc WC |
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 | */ | |
77ca1e02 LZ |
142 | 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) | |
55782138 LZ |
147 | ); |
148 | ||
77ca1e02 | 149 | DECLARE_EVENT_CLASS(block_rq, |
55782138 LZ |
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 ) | |
c09c47ca | 160 | __array( char, rwbs, RWBS_LEN ) |
77ca1e02 | 161 | __array( char, comm, TASK_COMM_LEN ) |
55782138 LZ |
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; | |
33659ebb CH |
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; | |
55782138 | 173 | |
2d3a8497 | 174 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
55782138 LZ |
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), | |
6556d1df SR |
182 | (unsigned long long)__entry->sector, |
183 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
184 | ); |
185 | ||
881245dc WC |
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 | */ | |
77ca1e02 | 196 | DEFINE_EVENT(block_rq, block_rq_insert, |
55782138 LZ |
197 | |
198 | TP_PROTO(struct request_queue *q, struct request *rq), | |
199 | ||
77ca1e02 | 200 | TP_ARGS(q, rq) |
55782138 LZ |
201 | ); |
202 | ||
881245dc WC |
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 | */ | |
77ca1e02 | 211 | DEFINE_EVENT(block_rq, block_rq_issue, |
55782138 LZ |
212 | |
213 | TP_PROTO(struct request_queue *q, struct request *rq), | |
214 | ||
77ca1e02 | 215 | TP_ARGS(q, rq) |
55782138 | 216 | ); |
fe63b94a | 217 | |
881245dc WC |
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 | */ | |
55782138 LZ |
229 | 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 ) | |
c09c47ca | 239 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
240 | __array( char, comm, TASK_COMM_LEN ) |
241 | ), | |
242 | ||
243 | TP_fast_assign( | |
fe63b94a CE |
244 | __entry->dev = bio->bi_bdev ? |
245 | bio->bi_bdev->bd_dev : 0; | |
4f024f37 | 246 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 247 | __entry->nr_sector = bio_sectors(bio); |
4f024f37 | 248 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
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, | |
6556d1df SR |
254 | (unsigned long long)__entry->sector, |
255 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
256 | ); |
257 | ||
881245dc WC |
258 | /** |
259 | * block_bio_complete - completed all work on the block operation | |
0a82a8d1 | 260 | * @q: queue holding the block operation |
881245dc | 261 | * @bio: block operation completed |
b7908c10 | 262 | * @error: io error value |
881245dc WC |
263 | * |
264 | * This tracepoint indicates there is no further work to do on this | |
265 | * block IO operation @bio. | |
266 | */ | |
55782138 LZ |
267 | TRACE_EVENT(block_bio_complete, |
268 | ||
0a82a8d1 | 269 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), |
55782138 | 270 | |
0a82a8d1 | 271 | TP_ARGS(q, bio, error), |
55782138 LZ |
272 | |
273 | TP_STRUCT__entry( | |
274 | __field( dev_t, dev ) | |
275 | __field( sector_t, sector ) | |
276 | __field( unsigned, nr_sector ) | |
277 | __field( int, error ) | |
c09c47ca | 278 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
279 | ), |
280 | ||
281 | TP_fast_assign( | |
0a82a8d1 | 282 | __entry->dev = bio->bi_bdev->bd_dev; |
4f024f37 | 283 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 284 | __entry->nr_sector = bio_sectors(bio); |
b7908c10 | 285 | __entry->error = error; |
4f024f37 | 286 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
287 | ), |
288 | ||
289 | TP_printk("%d,%d %s %llu + %u [%d]", | |
290 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
291 | (unsigned long long)__entry->sector, |
292 | __entry->nr_sector, __entry->error) | |
55782138 LZ |
293 | ); |
294 | ||
8c1cf6bb | 295 | DECLARE_EVENT_CLASS(block_bio_merge, |
55782138 | 296 | |
8c1cf6bb | 297 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
55782138 | 298 | |
8c1cf6bb | 299 | TP_ARGS(q, rq, bio), |
55782138 LZ |
300 | |
301 | TP_STRUCT__entry( | |
302 | __field( dev_t, dev ) | |
303 | __field( sector_t, sector ) | |
304 | __field( unsigned int, nr_sector ) | |
c09c47ca | 305 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
306 | __array( char, comm, TASK_COMM_LEN ) |
307 | ), | |
308 | ||
309 | TP_fast_assign( | |
310 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 311 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 312 | __entry->nr_sector = bio_sectors(bio); |
4f024f37 | 313 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
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, | |
6556d1df SR |
319 | (unsigned long long)__entry->sector, |
320 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
321 | ); |
322 | ||
881245dc WC |
323 | /** |
324 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
325 | * @q: queue holding operation | |
8c1cf6bb | 326 | * @rq: request bio is being merged into |
881245dc WC |
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 | */ | |
8c1cf6bb | 332 | DEFINE_EVENT(block_bio_merge, block_bio_backmerge, |
55782138 | 333 | |
8c1cf6bb | 334 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
55782138 | 335 | |
8c1cf6bb | 336 | TP_ARGS(q, rq, bio) |
55782138 LZ |
337 | ); |
338 | ||
881245dc WC |
339 | /** |
340 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
341 | * @q: queue holding operation | |
8c1cf6bb | 342 | * @rq: request bio is being merged into |
881245dc WC |
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 | */ | |
8c1cf6bb | 348 | DEFINE_EVENT(block_bio_merge, block_bio_frontmerge, |
55782138 | 349 | |
8c1cf6bb | 350 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
55782138 | 351 | |
8c1cf6bb | 352 | TP_ARGS(q, rq, bio) |
77ca1e02 | 353 | ); |
55782138 | 354 | |
881245dc WC |
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 | */ | |
8c1cf6bb | 362 | TRACE_EVENT(block_bio_queue, |
55782138 | 363 | |
77ca1e02 | 364 | TP_PROTO(struct request_queue *q, struct bio *bio), |
55782138 | 365 | |
8c1cf6bb TH |
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; | |
4f024f37 | 378 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 379 | __entry->nr_sector = bio_sectors(bio); |
4f024f37 | 380 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
8c1cf6bb TH |
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) | |
55782138 LZ |
388 | ); |
389 | ||
77ca1e02 | 390 | DECLARE_EVENT_CLASS(block_get_rq, |
55782138 LZ |
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 ) | |
c09c47ca | 400 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
401 | __array( char, comm, TASK_COMM_LEN ) |
402 | ), | |
403 | ||
404 | TP_fast_assign( | |
405 | __entry->dev = bio ? bio->bi_bdev->bd_dev : 0; | |
4f024f37 | 406 | __entry->sector = bio ? bio->bi_iter.bi_sector : 0; |
aa8b57aa | 407 | __entry->nr_sector = bio ? bio_sectors(bio) : 0; |
55782138 LZ |
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, | |
6556d1df SR |
415 | (unsigned long long)__entry->sector, |
416 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
417 | ); |
418 | ||
881245dc WC |
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 | */ | |
77ca1e02 | 428 | DEFINE_EVENT(block_get_rq, block_getrq, |
55782138 LZ |
429 | |
430 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
431 | ||
77ca1e02 LZ |
432 | TP_ARGS(q, bio, rw) |
433 | ); | |
55782138 | 434 | |
881245dc WC |
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 | */ | |
77ca1e02 | 446 | DEFINE_EVENT(block_get_rq, block_sleeprq, |
55782138 | 447 | |
77ca1e02 | 448 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), |
55782138 | 449 | |
77ca1e02 | 450 | TP_ARGS(q, bio, rw) |
55782138 LZ |
451 | ); |
452 | ||
881245dc WC |
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 | */ | |
55782138 LZ |
461 | 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 | ||
77ca1e02 | 478 | DECLARE_EVENT_CLASS(block_unplug, |
55782138 | 479 | |
49cac01e | 480 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 481 | |
49cac01e | 482 | TP_ARGS(q, depth, explicit), |
55782138 LZ |
483 | |
484 | TP_STRUCT__entry( | |
485 | __field( int, nr_rq ) | |
486 | __array( char, comm, TASK_COMM_LEN ) | |
487 | ), | |
488 | ||
489 | TP_fast_assign( | |
94b5eb28 | 490 | __entry->nr_rq = depth; |
55782138 LZ |
491 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
492 | ), | |
493 | ||
494 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
495 | ); | |
496 | ||
881245dc | 497 | /** |
49cac01e | 498 | * block_unplug - release of operations requests in request queue |
881245dc | 499 | * @q: request queue to unplug |
94b5eb28 | 500 | * @depth: number of requests just added to the queue |
49cac01e | 501 | * @explicit: whether this was an explicit unplug, or one from schedule() |
881245dc WC |
502 | * |
503 | * Unplug request queue @q because device driver is scheduled to work | |
504 | * on elements in the request queue. | |
505 | */ | |
49cac01e | 506 | DEFINE_EVENT(block_unplug, block_unplug, |
55782138 | 507 | |
49cac01e | 508 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 509 | |
49cac01e | 510 | TP_ARGS(q, depth, explicit) |
55782138 LZ |
511 | ); |
512 | ||
881245dc WC |
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 | */ | |
55782138 LZ |
524 | 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 ) | |
c09c47ca | 535 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
536 | __array( char, comm, TASK_COMM_LEN ) |
537 | ), | |
538 | ||
539 | TP_fast_assign( | |
540 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 541 | __entry->sector = bio->bi_iter.bi_sector; |
55782138 | 542 | __entry->new_sector = new_sector; |
4f024f37 | 543 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
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, | |
6556d1df SR |
549 | (unsigned long long)__entry->sector, |
550 | (unsigned long long)__entry->new_sector, | |
551 | __entry->comm) | |
55782138 LZ |
552 | ); |
553 | ||
881245dc | 554 | /** |
d07335e5 | 555 | * block_bio_remap - map request for a logical device to the raw device |
881245dc WC |
556 | * @q: queue holding the operation |
557 | * @bio: revised operation | |
558 | * @dev: device for the operation | |
559 | * @from: original sector for the operation | |
560 | * | |
d07335e5 | 561 | * An operation for a logical device has been mapped to the |
881245dc WC |
562 | * raw block device. |
563 | */ | |
d07335e5 | 564 | TRACE_EVENT(block_bio_remap, |
55782138 LZ |
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 ) | |
c09c47ca | 577 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
578 | ), |
579 | ||
580 | TP_fast_assign( | |
581 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 582 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 583 | __entry->nr_sector = bio_sectors(bio); |
55782138 LZ |
584 | __entry->old_dev = dev; |
585 | __entry->old_sector = from; | |
4f024f37 | 586 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
587 | ), |
588 | ||
589 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
590 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
591 | (unsigned long long)__entry->sector, |
592 | __entry->nr_sector, | |
55782138 | 593 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), |
6556d1df | 594 | (unsigned long long)__entry->old_sector) |
55782138 LZ |
595 | ); |
596 | ||
881245dc WC |
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 | */ | |
b0da3f0d JN |
608 | TRACE_EVENT(block_rq_remap, |
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 ) | |
75afb352 | 621 | __field( unsigned int, nr_bios ) |
c09c47ca | 622 | __array( char, rwbs, RWBS_LEN) |
b0da3f0d JN |
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; | |
75afb352 | 631 | __entry->nr_bios = blk_rq_count_bios(rq); |
2d3a8497 | 632 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
b0da3f0d JN |
633 | ), |
634 | ||
75afb352 | 635 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", |
b0da3f0d JN |
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), | |
75afb352 | 640 | (unsigned long long)__entry->old_sector, __entry->nr_bios) |
b0da3f0d JN |
641 | ); |
642 | ||
55782138 LZ |
643 | #endif /* _TRACE_BLOCK_H */ |
644 | ||
645 | /* This part must be outside protection */ | |
646 | #include <trace/define_trace.h> | |
647 |