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 | |
af5040da | 135 | * @nr_bytes: number of completed bytes |
881245dc WC |
136 | * |
137 | * The block_rq_complete tracepoint event indicates that some portion | |
138 | * of operation request has been completed by the device driver. If | |
139 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
140 | * do for the request. If @rq->bio is non-NULL then there is | |
141 | * additional work required to complete the request. | |
142 | */ | |
af5040da | 143 | TRACE_EVENT(block_rq_complete, |
77ca1e02 | 144 | |
af5040da RP |
145 | TP_PROTO(struct request_queue *q, struct request *rq, |
146 | unsigned int nr_bytes), | |
77ca1e02 | 147 | |
af5040da RP |
148 | TP_ARGS(q, rq, nr_bytes), |
149 | ||
150 | TP_STRUCT__entry( | |
151 | __field( dev_t, dev ) | |
152 | __field( sector_t, sector ) | |
153 | __field( unsigned int, nr_sector ) | |
154 | __field( int, errors ) | |
155 | __array( char, rwbs, RWBS_LEN ) | |
156 | __dynamic_array( char, cmd, blk_cmd_buf_len(rq) ) | |
157 | ), | |
158 | ||
159 | TP_fast_assign( | |
160 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
161 | __entry->sector = blk_rq_pos(rq); | |
162 | __entry->nr_sector = nr_bytes >> 9; | |
163 | __entry->errors = rq->errors; | |
164 | ||
165 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes); | |
166 | blk_dump_cmd(__get_str(cmd), rq); | |
167 | ), | |
168 | ||
169 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
170 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
171 | __entry->rwbs, __get_str(cmd), | |
172 | (unsigned long long)__entry->sector, | |
173 | __entry->nr_sector, __entry->errors) | |
55782138 LZ |
174 | ); |
175 | ||
77ca1e02 | 176 | DECLARE_EVENT_CLASS(block_rq, |
55782138 LZ |
177 | |
178 | TP_PROTO(struct request_queue *q, struct request *rq), | |
179 | ||
180 | TP_ARGS(q, rq), | |
181 | ||
182 | TP_STRUCT__entry( | |
183 | __field( dev_t, dev ) | |
184 | __field( sector_t, sector ) | |
185 | __field( unsigned int, nr_sector ) | |
186 | __field( unsigned int, bytes ) | |
c09c47ca | 187 | __array( char, rwbs, RWBS_LEN ) |
77ca1e02 | 188 | __array( char, comm, TASK_COMM_LEN ) |
55782138 LZ |
189 | __dynamic_array( char, cmd, blk_cmd_buf_len(rq) ) |
190 | ), | |
191 | ||
192 | TP_fast_assign( | |
193 | __entry->dev = rq->rq_disk ? disk_devt(rq->rq_disk) : 0; | |
33659ebb CH |
194 | __entry->sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
195 | 0 : blk_rq_pos(rq); | |
196 | __entry->nr_sector = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
197 | 0 : blk_rq_sectors(rq); | |
198 | __entry->bytes = (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
199 | blk_rq_bytes(rq) : 0; | |
55782138 | 200 | |
2d3a8497 | 201 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
55782138 LZ |
202 | blk_dump_cmd(__get_str(cmd), rq); |
203 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); | |
204 | ), | |
205 | ||
206 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
207 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
208 | __entry->rwbs, __entry->bytes, __get_str(cmd), | |
6556d1df SR |
209 | (unsigned long long)__entry->sector, |
210 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
211 | ); |
212 | ||
881245dc WC |
213 | /** |
214 | * block_rq_insert - insert block operation request into queue | |
215 | * @q: target queue | |
216 | * @rq: block IO operation request | |
217 | * | |
218 | * Called immediately before block operation request @rq is inserted | |
219 | * into queue @q. The fields in the operation request @rq struct can | |
220 | * be examined to determine which device and sectors the pending | |
221 | * operation would access. | |
222 | */ | |
77ca1e02 | 223 | DEFINE_EVENT(block_rq, block_rq_insert, |
55782138 LZ |
224 | |
225 | TP_PROTO(struct request_queue *q, struct request *rq), | |
226 | ||
77ca1e02 | 227 | TP_ARGS(q, rq) |
55782138 LZ |
228 | ); |
229 | ||
881245dc WC |
230 | /** |
231 | * block_rq_issue - issue pending block IO request operation to device driver | |
232 | * @q: queue holding operation | |
233 | * @rq: block IO operation operation request | |
234 | * | |
235 | * Called when block operation request @rq from queue @q is sent to a | |
236 | * device driver for processing. | |
237 | */ | |
77ca1e02 | 238 | DEFINE_EVENT(block_rq, block_rq_issue, |
55782138 LZ |
239 | |
240 | TP_PROTO(struct request_queue *q, struct request *rq), | |
241 | ||
77ca1e02 | 242 | TP_ARGS(q, rq) |
55782138 | 243 | ); |
fe63b94a | 244 | |
881245dc WC |
245 | /** |
246 | * block_bio_bounce - used bounce buffer when processing block operation | |
247 | * @q: queue holding the block operation | |
248 | * @bio: block operation | |
249 | * | |
250 | * A bounce buffer was used to handle the block operation @bio in @q. | |
251 | * This occurs when hardware limitations prevent a direct transfer of | |
252 | * data between the @bio data memory area and the IO device. Use of a | |
253 | * bounce buffer requires extra copying of data and decreases | |
254 | * performance. | |
255 | */ | |
55782138 LZ |
256 | TRACE_EVENT(block_bio_bounce, |
257 | ||
258 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
259 | ||
260 | TP_ARGS(q, bio), | |
261 | ||
262 | TP_STRUCT__entry( | |
263 | __field( dev_t, dev ) | |
264 | __field( sector_t, sector ) | |
265 | __field( unsigned int, nr_sector ) | |
c09c47ca | 266 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
267 | __array( char, comm, TASK_COMM_LEN ) |
268 | ), | |
269 | ||
270 | TP_fast_assign( | |
fe63b94a CE |
271 | __entry->dev = bio->bi_bdev ? |
272 | bio->bi_bdev->bd_dev : 0; | |
4f024f37 | 273 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 274 | __entry->nr_sector = bio_sectors(bio); |
4f024f37 | 275 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
276 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
277 | ), | |
278 | ||
279 | TP_printk("%d,%d %s %llu + %u [%s]", | |
280 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
281 | (unsigned long long)__entry->sector, |
282 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
283 | ); |
284 | ||
881245dc WC |
285 | /** |
286 | * block_bio_complete - completed all work on the block operation | |
0a82a8d1 | 287 | * @q: queue holding the block operation |
881245dc | 288 | * @bio: block operation completed |
b7908c10 | 289 | * @error: io error value |
881245dc WC |
290 | * |
291 | * This tracepoint indicates there is no further work to do on this | |
292 | * block IO operation @bio. | |
293 | */ | |
55782138 LZ |
294 | TRACE_EVENT(block_bio_complete, |
295 | ||
0a82a8d1 | 296 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), |
55782138 | 297 | |
0a82a8d1 | 298 | TP_ARGS(q, bio, error), |
55782138 LZ |
299 | |
300 | TP_STRUCT__entry( | |
301 | __field( dev_t, dev ) | |
302 | __field( sector_t, sector ) | |
303 | __field( unsigned, nr_sector ) | |
304 | __field( int, error ) | |
c09c47ca | 305 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
306 | ), |
307 | ||
308 | TP_fast_assign( | |
0a82a8d1 | 309 | __entry->dev = bio->bi_bdev->bd_dev; |
4f024f37 | 310 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 311 | __entry->nr_sector = bio_sectors(bio); |
b7908c10 | 312 | __entry->error = error; |
4f024f37 | 313 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
314 | ), |
315 | ||
316 | TP_printk("%d,%d %s %llu + %u [%d]", | |
317 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
318 | (unsigned long long)__entry->sector, |
319 | __entry->nr_sector, __entry->error) | |
55782138 LZ |
320 | ); |
321 | ||
8c1cf6bb | 322 | DECLARE_EVENT_CLASS(block_bio_merge, |
55782138 | 323 | |
8c1cf6bb | 324 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
55782138 | 325 | |
8c1cf6bb | 326 | TP_ARGS(q, rq, bio), |
55782138 LZ |
327 | |
328 | TP_STRUCT__entry( | |
329 | __field( dev_t, dev ) | |
330 | __field( sector_t, sector ) | |
331 | __field( unsigned int, nr_sector ) | |
c09c47ca | 332 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
333 | __array( char, comm, TASK_COMM_LEN ) |
334 | ), | |
335 | ||
336 | TP_fast_assign( | |
337 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 338 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 339 | __entry->nr_sector = bio_sectors(bio); |
4f024f37 | 340 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
341 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
342 | ), | |
343 | ||
344 | TP_printk("%d,%d %s %llu + %u [%s]", | |
345 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
346 | (unsigned long long)__entry->sector, |
347 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
348 | ); |
349 | ||
881245dc WC |
350 | /** |
351 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
352 | * @q: queue holding operation | |
8c1cf6bb | 353 | * @rq: request bio is being merged into |
881245dc WC |
354 | * @bio: new block operation to merge |
355 | * | |
356 | * Merging block request @bio to the end of an existing block request | |
357 | * in queue @q. | |
358 | */ | |
8c1cf6bb | 359 | DEFINE_EVENT(block_bio_merge, block_bio_backmerge, |
55782138 | 360 | |
8c1cf6bb | 361 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
55782138 | 362 | |
8c1cf6bb | 363 | TP_ARGS(q, rq, bio) |
55782138 LZ |
364 | ); |
365 | ||
881245dc WC |
366 | /** |
367 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
368 | * @q: queue holding operation | |
8c1cf6bb | 369 | * @rq: request bio is being merged into |
881245dc WC |
370 | * @bio: new block operation to merge |
371 | * | |
372 | * Merging block IO operation @bio to the beginning of an existing block | |
373 | * operation in queue @q. | |
374 | */ | |
8c1cf6bb | 375 | DEFINE_EVENT(block_bio_merge, block_bio_frontmerge, |
55782138 | 376 | |
8c1cf6bb | 377 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
55782138 | 378 | |
8c1cf6bb | 379 | TP_ARGS(q, rq, bio) |
77ca1e02 | 380 | ); |
55782138 | 381 | |
881245dc WC |
382 | /** |
383 | * block_bio_queue - putting new block IO operation in queue | |
384 | * @q: queue holding operation | |
385 | * @bio: new block operation | |
386 | * | |
387 | * About to place the block IO operation @bio into queue @q. | |
388 | */ | |
8c1cf6bb | 389 | TRACE_EVENT(block_bio_queue, |
55782138 | 390 | |
77ca1e02 | 391 | TP_PROTO(struct request_queue *q, struct bio *bio), |
55782138 | 392 | |
8c1cf6bb TH |
393 | TP_ARGS(q, bio), |
394 | ||
395 | TP_STRUCT__entry( | |
396 | __field( dev_t, dev ) | |
397 | __field( sector_t, sector ) | |
398 | __field( unsigned int, nr_sector ) | |
399 | __array( char, rwbs, RWBS_LEN ) | |
400 | __array( char, comm, TASK_COMM_LEN ) | |
401 | ), | |
402 | ||
403 | TP_fast_assign( | |
404 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 405 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 406 | __entry->nr_sector = bio_sectors(bio); |
4f024f37 | 407 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
8c1cf6bb TH |
408 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
409 | ), | |
410 | ||
411 | TP_printk("%d,%d %s %llu + %u [%s]", | |
412 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
413 | (unsigned long long)__entry->sector, | |
414 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
415 | ); |
416 | ||
77ca1e02 | 417 | DECLARE_EVENT_CLASS(block_get_rq, |
55782138 LZ |
418 | |
419 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
420 | ||
421 | TP_ARGS(q, bio, rw), | |
422 | ||
423 | TP_STRUCT__entry( | |
424 | __field( dev_t, dev ) | |
425 | __field( sector_t, sector ) | |
426 | __field( unsigned int, nr_sector ) | |
c09c47ca | 427 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
428 | __array( char, comm, TASK_COMM_LEN ) |
429 | ), | |
430 | ||
431 | TP_fast_assign( | |
432 | __entry->dev = bio ? bio->bi_bdev->bd_dev : 0; | |
4f024f37 | 433 | __entry->sector = bio ? bio->bi_iter.bi_sector : 0; |
aa8b57aa | 434 | __entry->nr_sector = bio ? bio_sectors(bio) : 0; |
55782138 LZ |
435 | blk_fill_rwbs(__entry->rwbs, |
436 | bio ? bio->bi_rw : 0, __entry->nr_sector); | |
437 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); | |
438 | ), | |
439 | ||
440 | TP_printk("%d,%d %s %llu + %u [%s]", | |
441 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
442 | (unsigned long long)__entry->sector, |
443 | __entry->nr_sector, __entry->comm) | |
55782138 LZ |
444 | ); |
445 | ||
881245dc WC |
446 | /** |
447 | * block_getrq - get a free request entry in queue for block IO operations | |
448 | * @q: queue for operations | |
449 | * @bio: pending block IO operation | |
450 | * @rw: low bit indicates a read (%0) or a write (%1) | |
451 | * | |
452 | * A request struct for queue @q has been allocated to handle the | |
453 | * block IO operation @bio. | |
454 | */ | |
77ca1e02 | 455 | DEFINE_EVENT(block_get_rq, block_getrq, |
55782138 LZ |
456 | |
457 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
458 | ||
77ca1e02 LZ |
459 | TP_ARGS(q, bio, rw) |
460 | ); | |
55782138 | 461 | |
881245dc WC |
462 | /** |
463 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation | |
464 | * @q: queue for operation | |
465 | * @bio: pending block IO operation | |
466 | * @rw: low bit indicates a read (%0) or a write (%1) | |
467 | * | |
468 | * In the case where a request struct cannot be provided for queue @q | |
469 | * the process needs to wait for an request struct to become | |
470 | * available. This tracepoint event is generated each time the | |
471 | * process goes to sleep waiting for request struct become available. | |
472 | */ | |
77ca1e02 | 473 | DEFINE_EVENT(block_get_rq, block_sleeprq, |
55782138 | 474 | |
77ca1e02 | 475 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), |
55782138 | 476 | |
77ca1e02 | 477 | TP_ARGS(q, bio, rw) |
55782138 LZ |
478 | ); |
479 | ||
881245dc WC |
480 | /** |
481 | * block_plug - keep operations requests in request queue | |
482 | * @q: request queue to plug | |
483 | * | |
484 | * Plug the request queue @q. Do not allow block operation requests | |
485 | * to be sent to the device driver. Instead, accumulate requests in | |
486 | * the queue to improve throughput performance of the block device. | |
487 | */ | |
55782138 LZ |
488 | TRACE_EVENT(block_plug, |
489 | ||
490 | TP_PROTO(struct request_queue *q), | |
491 | ||
492 | TP_ARGS(q), | |
493 | ||
494 | TP_STRUCT__entry( | |
495 | __array( char, comm, TASK_COMM_LEN ) | |
496 | ), | |
497 | ||
498 | TP_fast_assign( | |
499 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); | |
500 | ), | |
501 | ||
502 | TP_printk("[%s]", __entry->comm) | |
503 | ); | |
504 | ||
77ca1e02 | 505 | DECLARE_EVENT_CLASS(block_unplug, |
55782138 | 506 | |
49cac01e | 507 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 508 | |
49cac01e | 509 | TP_ARGS(q, depth, explicit), |
55782138 LZ |
510 | |
511 | TP_STRUCT__entry( | |
512 | __field( int, nr_rq ) | |
513 | __array( char, comm, TASK_COMM_LEN ) | |
514 | ), | |
515 | ||
516 | TP_fast_assign( | |
94b5eb28 | 517 | __entry->nr_rq = depth; |
55782138 LZ |
518 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
519 | ), | |
520 | ||
521 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
522 | ); | |
523 | ||
881245dc | 524 | /** |
49cac01e | 525 | * block_unplug - release of operations requests in request queue |
881245dc | 526 | * @q: request queue to unplug |
94b5eb28 | 527 | * @depth: number of requests just added to the queue |
49cac01e | 528 | * @explicit: whether this was an explicit unplug, or one from schedule() |
881245dc WC |
529 | * |
530 | * Unplug request queue @q because device driver is scheduled to work | |
531 | * on elements in the request queue. | |
532 | */ | |
49cac01e | 533 | DEFINE_EVENT(block_unplug, block_unplug, |
55782138 | 534 | |
49cac01e | 535 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
55782138 | 536 | |
49cac01e | 537 | TP_ARGS(q, depth, explicit) |
55782138 LZ |
538 | ); |
539 | ||
881245dc WC |
540 | /** |
541 | * block_split - split a single bio struct into two bio structs | |
542 | * @q: queue containing the bio | |
543 | * @bio: block operation being split | |
544 | * @new_sector: The starting sector for the new bio | |
545 | * | |
546 | * The bio request @bio in request queue @q needs to be split into two | |
547 | * bio requests. The newly created @bio request starts at | |
548 | * @new_sector. This split may be required due to hardware limitation | |
549 | * such as operation crossing device boundaries in a RAID system. | |
550 | */ | |
55782138 LZ |
551 | TRACE_EVENT(block_split, |
552 | ||
553 | TP_PROTO(struct request_queue *q, struct bio *bio, | |
554 | unsigned int new_sector), | |
555 | ||
556 | TP_ARGS(q, bio, new_sector), | |
557 | ||
558 | TP_STRUCT__entry( | |
559 | __field( dev_t, dev ) | |
560 | __field( sector_t, sector ) | |
561 | __field( sector_t, new_sector ) | |
c09c47ca | 562 | __array( char, rwbs, RWBS_LEN ) |
55782138 LZ |
563 | __array( char, comm, TASK_COMM_LEN ) |
564 | ), | |
565 | ||
566 | TP_fast_assign( | |
567 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 568 | __entry->sector = bio->bi_iter.bi_sector; |
55782138 | 569 | __entry->new_sector = new_sector; |
4f024f37 | 570 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
571 | memcpy(__entry->comm, current->comm, TASK_COMM_LEN); |
572 | ), | |
573 | ||
574 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
575 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
576 | (unsigned long long)__entry->sector, |
577 | (unsigned long long)__entry->new_sector, | |
578 | __entry->comm) | |
55782138 LZ |
579 | ); |
580 | ||
881245dc | 581 | /** |
d07335e5 | 582 | * block_bio_remap - map request for a logical device to the raw device |
881245dc WC |
583 | * @q: queue holding the operation |
584 | * @bio: revised operation | |
585 | * @dev: device for the operation | |
586 | * @from: original sector for the operation | |
587 | * | |
d07335e5 | 588 | * An operation for a logical device has been mapped to the |
881245dc WC |
589 | * raw block device. |
590 | */ | |
d07335e5 | 591 | TRACE_EVENT(block_bio_remap, |
55782138 LZ |
592 | |
593 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
594 | sector_t from), | |
595 | ||
596 | TP_ARGS(q, bio, dev, from), | |
597 | ||
598 | TP_STRUCT__entry( | |
599 | __field( dev_t, dev ) | |
600 | __field( sector_t, sector ) | |
601 | __field( unsigned int, nr_sector ) | |
602 | __field( dev_t, old_dev ) | |
603 | __field( sector_t, old_sector ) | |
c09c47ca | 604 | __array( char, rwbs, RWBS_LEN) |
55782138 LZ |
605 | ), |
606 | ||
607 | TP_fast_assign( | |
608 | __entry->dev = bio->bi_bdev->bd_dev; | |
4f024f37 | 609 | __entry->sector = bio->bi_iter.bi_sector; |
aa8b57aa | 610 | __entry->nr_sector = bio_sectors(bio); |
55782138 LZ |
611 | __entry->old_dev = dev; |
612 | __entry->old_sector = from; | |
4f024f37 | 613 | blk_fill_rwbs(__entry->rwbs, bio->bi_rw, bio->bi_iter.bi_size); |
55782138 LZ |
614 | ), |
615 | ||
616 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
617 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
6556d1df SR |
618 | (unsigned long long)__entry->sector, |
619 | __entry->nr_sector, | |
55782138 | 620 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), |
6556d1df | 621 | (unsigned long long)__entry->old_sector) |
55782138 LZ |
622 | ); |
623 | ||
881245dc WC |
624 | /** |
625 | * block_rq_remap - map request for a block operation request | |
626 | * @q: queue holding the operation | |
627 | * @rq: block IO operation request | |
628 | * @dev: device for the operation | |
629 | * @from: original sector for the operation | |
630 | * | |
631 | * The block operation request @rq in @q has been remapped. The block | |
632 | * operation request @rq holds the current information and @from hold | |
633 | * the original sector. | |
634 | */ | |
b0da3f0d JN |
635 | TRACE_EVENT(block_rq_remap, |
636 | ||
637 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
638 | sector_t from), | |
639 | ||
640 | TP_ARGS(q, rq, dev, from), | |
641 | ||
642 | TP_STRUCT__entry( | |
643 | __field( dev_t, dev ) | |
644 | __field( sector_t, sector ) | |
645 | __field( unsigned int, nr_sector ) | |
646 | __field( dev_t, old_dev ) | |
647 | __field( sector_t, old_sector ) | |
75afb352 | 648 | __field( unsigned int, nr_bios ) |
c09c47ca | 649 | __array( char, rwbs, RWBS_LEN) |
b0da3f0d JN |
650 | ), |
651 | ||
652 | TP_fast_assign( | |
653 | __entry->dev = disk_devt(rq->rq_disk); | |
654 | __entry->sector = blk_rq_pos(rq); | |
655 | __entry->nr_sector = blk_rq_sectors(rq); | |
656 | __entry->old_dev = dev; | |
657 | __entry->old_sector = from; | |
75afb352 | 658 | __entry->nr_bios = blk_rq_count_bios(rq); |
2d3a8497 | 659 | blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq)); |
b0da3f0d JN |
660 | ), |
661 | ||
75afb352 | 662 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u", |
b0da3f0d JN |
663 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, |
664 | (unsigned long long)__entry->sector, | |
665 | __entry->nr_sector, | |
666 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
75afb352 | 667 | (unsigned long long)__entry->old_sector, __entry->nr_bios) |
b0da3f0d JN |
668 | ); |
669 | ||
55782138 LZ |
670 | #endif /* _TRACE_BLOCK_H */ |
671 | ||
672 | /* This part must be outside protection */ | |
673 | #include <trace/define_trace.h> | |
674 |