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f62b389e MD |
1 | #undef TRACE_SYSTEM |
2 | #define TRACE_SYSTEM block | |
3 | ||
4 | #if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ) | |
5 | #define _TRACE_BLOCK_H | |
6 | ||
7 | #include <linux/blktrace_api.h> | |
8 | #include <linux/blkdev.h> | |
9 | #include <linux/tracepoint.h> | |
10 | #include <linux/trace_seq.h> | |
7c68b363 AG |
11 | #include <linux/version.h> |
12 | ||
13 | #define RWBS_LEN 8 | |
f62b389e MD |
14 | |
15 | #ifndef _TRACE_BLOCK_DEF_ | |
16 | #define _TRACE_BLOCK_DEF_ | |
17 | ||
18 | #define __blk_dump_cmd(cmd, len) "<unknown>" | |
19 | ||
20 | enum { | |
21 | RWBS_FLAG_WRITE = (1 << 0), | |
22 | RWBS_FLAG_DISCARD = (1 << 1), | |
23 | RWBS_FLAG_READ = (1 << 2), | |
24 | RWBS_FLAG_RAHEAD = (1 << 3), | |
7c68b363 AG |
25 | RWBS_FLAG_BARRIER = (1 << 4), |
26 | RWBS_FLAG_SYNC = (1 << 5), | |
27 | RWBS_FLAG_META = (1 << 6), | |
28 | RWBS_FLAG_SECURE = (1 << 7), | |
29 | RWBS_FLAG_FLUSH = (1 << 8), | |
30 | RWBS_FLAG_FUA = (1 << 9), | |
f62b389e MD |
31 | }; |
32 | ||
33 | #endif /* _TRACE_BLOCK_DEF_ */ | |
34 | ||
35 | #define __print_rwbs_flags(rwbs) \ | |
36 | __print_flags(rwbs, "", \ | |
7c68b363 | 37 | { RWBS_FLAG_FLUSH, "F" }, \ |
f62b389e MD |
38 | { RWBS_FLAG_WRITE, "W" }, \ |
39 | { RWBS_FLAG_DISCARD, "D" }, \ | |
40 | { RWBS_FLAG_READ, "R" }, \ | |
7c68b363 | 41 | { RWBS_FLAG_FUA, "F" }, \ |
f62b389e | 42 | { RWBS_FLAG_RAHEAD, "A" }, \ |
7c68b363 | 43 | { RWBS_FLAG_BARRIER, "B" }, \ |
f62b389e MD |
44 | { RWBS_FLAG_SYNC, "S" }, \ |
45 | { RWBS_FLAG_META, "M" }, \ | |
46 | { RWBS_FLAG_SECURE, "E" }) | |
47 | ||
7c68b363 AG |
48 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) |
49 | ||
50 | #define blk_fill_rwbs(rwbs, rw, bytes) \ | |
51 | tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \ | |
52 | ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \ | |
53 | ( (bytes) ? RWBS_FLAG_READ : \ | |
54 | ( 0 )))) \ | |
55 | | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \ | |
56 | | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \ | |
57 | | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \ | |
58 | | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0) \ | |
59 | | ((rw) & REQ_FLUSH ? RWBS_FLAG_FLUSH : 0) \ | |
60 | | ((rw) & REQ_FUA ? RWBS_FLAG_FUA : 0)) | |
61 | ||
62 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) | |
63 | ||
f62b389e MD |
64 | #define blk_fill_rwbs(rwbs, rw, bytes) \ |
65 | tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \ | |
66 | ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \ | |
67 | ( (bytes) ? RWBS_FLAG_READ : \ | |
68 | ( 0 )))) \ | |
69 | | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \ | |
70 | | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \ | |
71 | | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \ | |
72 | | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0)) | |
73 | ||
7c68b363 AG |
74 | #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)) |
75 | ||
76 | #define blk_fill_rwbs(rwbs, rw, bytes) \ | |
77 | tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \ | |
78 | ( (rw) & REQ_DISCARD ? RWBS_FLAG_DISCARD : \ | |
79 | ( (bytes) ? RWBS_FLAG_READ : \ | |
80 | ( 0 )))) \ | |
81 | | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \ | |
82 | | ((rw) & REQ_HARDBARRIER ? RWBS_FLAG_BARRIER : 0) \ | |
83 | | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \ | |
84 | | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \ | |
85 | | ((rw) & REQ_SECURE ? RWBS_FLAG_SECURE : 0)) | |
86 | ||
87 | #else | |
88 | ||
89 | #define blk_fill_rwbs(rwbs, rw, bytes) \ | |
90 | tp_assign(rwbs, ((rw) & WRITE ? RWBS_FLAG_WRITE : \ | |
91 | ( (rw) & (1 << BIO_RW_DISCARD) ? RWBS_FLAG_DISCARD : \ | |
92 | ( (bytes) ? RWBS_FLAG_READ : \ | |
93 | ( 0 )))) \ | |
94 | | ((rw) & (1 << BIO_RW_AHEAD) ? RWBS_FLAG_RAHEAD : 0) \ | |
95 | | ((rw) & (1 << BIO_RW_SYNCIO) ? RWBS_FLAG_SYNC : 0) \ | |
96 | | ((rw) & (1 << BIO_RW_META) ? RWBS_FLAG_META : 0) \ | |
97 | | ((rw) & (1 << BIO_RW_BARRIER) ? RWBS_FLAG_BARRIER : 0)) | |
98 | ||
99 | #endif | |
100 | ||
f62b389e MD |
101 | DECLARE_EVENT_CLASS(block_rq_with_error, |
102 | ||
103 | TP_PROTO(struct request_queue *q, struct request *rq), | |
104 | ||
105 | TP_ARGS(q, rq), | |
106 | ||
107 | TP_STRUCT__entry( | |
108 | __field( dev_t, dev ) | |
109 | __field( sector_t, sector ) | |
110 | __field( unsigned int, nr_sector ) | |
111 | __field( int, errors ) | |
112 | __field( unsigned int, rwbs ) | |
16830439 MD |
113 | __dynamic_array_hex( unsigned char, cmd, |
114 | (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
115 | rq->cmd_len : 0) | |
f62b389e MD |
116 | ), |
117 | ||
118 | TP_fast_assign( | |
119 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
120 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
121 | 0 : blk_rq_pos(rq)) | |
122 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
123 | 0 : blk_rq_sectors(rq)) | |
124 | tp_assign(errors, rq->errors) | |
125 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 | 126 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
16830439 | 127 | rq->cmd : NULL); |
f62b389e MD |
128 | ), |
129 | ||
130 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
131 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
132 | __print_rwbs_flags(__entry->rwbs), | |
133 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
134 | __get_dynamic_array_len(cmd)), | |
135 | (unsigned long long)__entry->sector, | |
136 | __entry->nr_sector, __entry->errors) | |
137 | ) | |
138 | ||
139 | /** | |
140 | * block_rq_abort - abort block operation request | |
141 | * @q: queue containing the block operation request | |
142 | * @rq: block IO operation request | |
143 | * | |
144 | * Called immediately after pending block IO operation request @rq in | |
145 | * queue @q is aborted. The fields in the operation request @rq | |
146 | * can be examined to determine which device and sectors the pending | |
147 | * operation would access. | |
148 | */ | |
149 | DEFINE_EVENT(block_rq_with_error, block_rq_abort, | |
150 | ||
151 | TP_PROTO(struct request_queue *q, struct request *rq), | |
152 | ||
153 | TP_ARGS(q, rq) | |
154 | ) | |
155 | ||
156 | /** | |
157 | * block_rq_requeue - place block IO request back on a queue | |
158 | * @q: queue holding operation | |
159 | * @rq: block IO operation request | |
160 | * | |
161 | * The block operation request @rq is being placed back into queue | |
162 | * @q. For some reason the request was not completed and needs to be | |
163 | * put back in the queue. | |
164 | */ | |
165 | DEFINE_EVENT(block_rq_with_error, block_rq_requeue, | |
166 | ||
167 | TP_PROTO(struct request_queue *q, struct request *rq), | |
168 | ||
169 | TP_ARGS(q, rq) | |
170 | ) | |
171 | ||
172 | /** | |
173 | * block_rq_complete - block IO operation completed by device driver | |
174 | * @q: queue containing the block operation request | |
175 | * @rq: block operations request | |
176 | * | |
177 | * The block_rq_complete tracepoint event indicates that some portion | |
178 | * of operation request has been completed by the device driver. If | |
179 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
180 | * do for the request. If @rq->bio is non-NULL then there is | |
181 | * additional work required to complete the request. | |
182 | */ | |
183 | DEFINE_EVENT(block_rq_with_error, block_rq_complete, | |
184 | ||
185 | TP_PROTO(struct request_queue *q, struct request *rq), | |
186 | ||
187 | TP_ARGS(q, rq) | |
188 | ) | |
189 | ||
190 | DECLARE_EVENT_CLASS(block_rq, | |
191 | ||
192 | TP_PROTO(struct request_queue *q, struct request *rq), | |
193 | ||
194 | TP_ARGS(q, rq), | |
195 | ||
196 | TP_STRUCT__entry( | |
197 | __field( dev_t, dev ) | |
198 | __field( sector_t, sector ) | |
199 | __field( unsigned int, nr_sector ) | |
200 | __field( unsigned int, bytes ) | |
201 | __field( unsigned int, rwbs ) | |
64c796d8 | 202 | __array_text( char, comm, TASK_COMM_LEN ) |
16830439 MD |
203 | __dynamic_array_hex( unsigned char, cmd, |
204 | (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
205 | rq->cmd_len : 0) | |
f62b389e MD |
206 | ), |
207 | ||
208 | TP_fast_assign( | |
209 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
210 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
211 | 0 : blk_rq_pos(rq)) | |
212 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
213 | 0 : blk_rq_sectors(rq)) | |
214 | tp_assign(bytes, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
215 | blk_rq_bytes(rq) : 0) | |
216 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 | 217 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
16830439 | 218 | rq->cmd : NULL); |
f62b389e MD |
219 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
220 | ), | |
221 | ||
222 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
223 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
224 | __print_rwbs_flags(__entry->rwbs), | |
225 | __entry->bytes, | |
226 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
227 | __get_dynamic_array_len(cmd)), | |
228 | (unsigned long long)__entry->sector, | |
229 | __entry->nr_sector, __entry->comm) | |
230 | ) | |
231 | ||
232 | /** | |
233 | * block_rq_insert - insert block operation request into queue | |
234 | * @q: target queue | |
235 | * @rq: block IO operation request | |
236 | * | |
237 | * Called immediately before block operation request @rq is inserted | |
238 | * into queue @q. The fields in the operation request @rq struct can | |
239 | * be examined to determine which device and sectors the pending | |
240 | * operation would access. | |
241 | */ | |
242 | DEFINE_EVENT(block_rq, block_rq_insert, | |
243 | ||
244 | TP_PROTO(struct request_queue *q, struct request *rq), | |
245 | ||
246 | TP_ARGS(q, rq) | |
247 | ) | |
248 | ||
249 | /** | |
250 | * block_rq_issue - issue pending block IO request operation to device driver | |
251 | * @q: queue holding operation | |
252 | * @rq: block IO operation operation request | |
253 | * | |
254 | * Called when block operation request @rq from queue @q is sent to a | |
255 | * device driver for processing. | |
256 | */ | |
257 | DEFINE_EVENT(block_rq, block_rq_issue, | |
258 | ||
259 | TP_PROTO(struct request_queue *q, struct request *rq), | |
260 | ||
261 | TP_ARGS(q, rq) | |
262 | ) | |
263 | ||
264 | /** | |
265 | * block_bio_bounce - used bounce buffer when processing block operation | |
266 | * @q: queue holding the block operation | |
267 | * @bio: block operation | |
268 | * | |
269 | * A bounce buffer was used to handle the block operation @bio in @q. | |
270 | * This occurs when hardware limitations prevent a direct transfer of | |
271 | * data between the @bio data memory area and the IO device. Use of a | |
272 | * bounce buffer requires extra copying of data and decreases | |
273 | * performance. | |
274 | */ | |
275 | TRACE_EVENT(block_bio_bounce, | |
276 | ||
277 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
278 | ||
279 | TP_ARGS(q, bio), | |
280 | ||
281 | TP_STRUCT__entry( | |
282 | __field( dev_t, dev ) | |
283 | __field( sector_t, sector ) | |
284 | __field( unsigned int, nr_sector ) | |
285 | __field( unsigned int, rwbs ) | |
64c796d8 | 286 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
287 | ), |
288 | ||
289 | TP_fast_assign( | |
290 | tp_assign(dev, bio->bi_bdev ? | |
291 | bio->bi_bdev->bd_dev : 0) | |
292 | tp_assign(sector, bio->bi_sector) | |
293 | tp_assign(nr_sector, bio->bi_size >> 9) | |
294 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
295 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
296 | ), | |
297 | ||
298 | TP_printk("%d,%d %s %llu + %u [%s]", | |
299 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
300 | __print_rwbs_flags(__entry->rwbs), | |
301 | (unsigned long long)__entry->sector, | |
302 | __entry->nr_sector, __entry->comm) | |
303 | ) | |
304 | ||
305 | /** | |
306 | * block_bio_complete - completed all work on the block operation | |
307 | * @q: queue holding the block operation | |
308 | * @bio: block operation completed | |
309 | * @error: io error value | |
310 | * | |
311 | * This tracepoint indicates there is no further work to do on this | |
312 | * block IO operation @bio. | |
313 | */ | |
314 | TRACE_EVENT(block_bio_complete, | |
315 | ||
1bc491fc | 316 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e MD |
317 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), |
318 | ||
319 | TP_ARGS(q, bio, error), | |
7c68b363 AG |
320 | #else |
321 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
322 | ||
323 | TP_ARGS(q, bio), | |
324 | #endif | |
f62b389e MD |
325 | |
326 | TP_STRUCT__entry( | |
327 | __field( dev_t, dev ) | |
328 | __field( sector_t, sector ) | |
329 | __field( unsigned, nr_sector ) | |
330 | __field( int, error ) | |
331 | __field( unsigned int, rwbs ) | |
332 | ), | |
333 | ||
334 | TP_fast_assign( | |
335 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
336 | tp_assign(sector, bio->bi_sector) | |
337 | tp_assign(nr_sector, bio->bi_size >> 9) | |
7c68b363 | 338 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e | 339 | tp_assign(error, error) |
7c68b363 AG |
340 | #else |
341 | tp_assign(error, 0) | |
342 | #endif | |
f62b389e MD |
343 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) |
344 | ), | |
345 | ||
346 | TP_printk("%d,%d %s %llu + %u [%d]", | |
347 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
348 | __print_rwbs_flags(__entry->rwbs), | |
349 | (unsigned long long)__entry->sector, | |
350 | __entry->nr_sector, __entry->error) | |
351 | ) | |
352 | ||
353 | DECLARE_EVENT_CLASS(block_bio, | |
354 | ||
355 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
356 | ||
357 | TP_ARGS(q, bio), | |
358 | ||
359 | TP_STRUCT__entry( | |
360 | __field( dev_t, dev ) | |
361 | __field( sector_t, sector ) | |
362 | __field( unsigned int, nr_sector ) | |
363 | __field( unsigned int, rwbs ) | |
64c796d8 | 364 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
365 | ), |
366 | ||
367 | TP_fast_assign( | |
368 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
369 | tp_assign(sector, bio->bi_sector) | |
370 | tp_assign(nr_sector, bio->bi_size >> 9) | |
371 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
372 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
373 | ), | |
374 | ||
375 | TP_printk("%d,%d %s %llu + %u [%s]", | |
376 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
377 | __print_rwbs_flags(__entry->rwbs), | |
378 | (unsigned long long)__entry->sector, | |
379 | __entry->nr_sector, __entry->comm) | |
380 | ) | |
381 | ||
382 | /** | |
383 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
384 | * @q: queue holding operation | |
385 | * @bio: new block operation to merge | |
386 | * | |
387 | * Merging block request @bio to the end of an existing block request | |
388 | * in queue @q. | |
389 | */ | |
390 | DEFINE_EVENT(block_bio, block_bio_backmerge, | |
391 | ||
fa7c32a4 MD |
392 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
393 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
394 | ||
395 | TP_ARGS(q, rq, bio) | |
396 | #else | |
f62b389e MD |
397 | TP_PROTO(struct request_queue *q, struct bio *bio), |
398 | ||
399 | TP_ARGS(q, bio) | |
fa7c32a4 | 400 | #endif |
f62b389e MD |
401 | ) |
402 | ||
403 | /** | |
404 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
405 | * @q: queue holding operation | |
406 | * @bio: new block operation to merge | |
407 | * | |
408 | * Merging block IO operation @bio to the beginning of an existing block | |
409 | * operation in queue @q. | |
410 | */ | |
411 | DEFINE_EVENT(block_bio, block_bio_frontmerge, | |
412 | ||
fa7c32a4 MD |
413 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
414 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
415 | ||
416 | TP_ARGS(q, rq, bio) | |
417 | #else | |
f62b389e MD |
418 | TP_PROTO(struct request_queue *q, struct bio *bio), |
419 | ||
420 | TP_ARGS(q, bio) | |
fa7c32a4 | 421 | #endif |
f62b389e MD |
422 | ) |
423 | ||
424 | /** | |
425 | * block_bio_queue - putting new block IO operation in queue | |
426 | * @q: queue holding operation | |
427 | * @bio: new block operation | |
428 | * | |
429 | * About to place the block IO operation @bio into queue @q. | |
430 | */ | |
431 | DEFINE_EVENT(block_bio, block_bio_queue, | |
432 | ||
433 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
434 | ||
435 | TP_ARGS(q, bio) | |
436 | ) | |
437 | ||
438 | DECLARE_EVENT_CLASS(block_get_rq, | |
439 | ||
440 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
441 | ||
442 | TP_ARGS(q, bio, rw), | |
443 | ||
444 | TP_STRUCT__entry( | |
445 | __field( dev_t, dev ) | |
446 | __field( sector_t, sector ) | |
447 | __field( unsigned int, nr_sector ) | |
448 | __field( unsigned int, rwbs ) | |
64c796d8 | 449 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
450 | ), |
451 | ||
452 | TP_fast_assign( | |
453 | tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0) | |
454 | tp_assign(sector, bio ? bio->bi_sector : 0) | |
455 | tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0) | |
456 | blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0, | |
457 | bio ? bio->bi_size >> 9 : 0) | |
458 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
459 | ), | |
460 | ||
461 | TP_printk("%d,%d %s %llu + %u [%s]", | |
462 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
463 | __print_rwbs_flags(__entry->rwbs), | |
464 | (unsigned long long)__entry->sector, | |
465 | __entry->nr_sector, __entry->comm) | |
466 | ) | |
467 | ||
468 | /** | |
469 | * block_getrq - get a free request entry in queue for block IO operations | |
470 | * @q: queue for operations | |
471 | * @bio: pending block IO operation | |
472 | * @rw: low bit indicates a read (%0) or a write (%1) | |
473 | * | |
474 | * A request struct for queue @q has been allocated to handle the | |
475 | * block IO operation @bio. | |
476 | */ | |
477 | DEFINE_EVENT(block_get_rq, block_getrq, | |
478 | ||
479 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
480 | ||
481 | TP_ARGS(q, bio, rw) | |
482 | ) | |
483 | ||
484 | /** | |
485 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation | |
486 | * @q: queue for operation | |
487 | * @bio: pending block IO operation | |
488 | * @rw: low bit indicates a read (%0) or a write (%1) | |
489 | * | |
490 | * In the case where a request struct cannot be provided for queue @q | |
491 | * the process needs to wait for an request struct to become | |
492 | * available. This tracepoint event is generated each time the | |
493 | * process goes to sleep waiting for request struct become available. | |
494 | */ | |
495 | DEFINE_EVENT(block_get_rq, block_sleeprq, | |
496 | ||
497 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
498 | ||
499 | TP_ARGS(q, bio, rw) | |
500 | ) | |
501 | ||
502 | /** | |
503 | * block_plug - keep operations requests in request queue | |
504 | * @q: request queue to plug | |
505 | * | |
506 | * Plug the request queue @q. Do not allow block operation requests | |
507 | * to be sent to the device driver. Instead, accumulate requests in | |
508 | * the queue to improve throughput performance of the block device. | |
509 | */ | |
510 | TRACE_EVENT(block_plug, | |
511 | ||
512 | TP_PROTO(struct request_queue *q), | |
513 | ||
514 | TP_ARGS(q), | |
515 | ||
516 | TP_STRUCT__entry( | |
64c796d8 | 517 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
518 | ), |
519 | ||
520 | TP_fast_assign( | |
521 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
522 | ), | |
523 | ||
524 | TP_printk("[%s]", __entry->comm) | |
525 | ) | |
526 | ||
527 | DECLARE_EVENT_CLASS(block_unplug, | |
528 | ||
7c68b363 | 529 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e MD |
530 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
531 | ||
532 | TP_ARGS(q, depth, explicit), | |
7c68b363 AG |
533 | #else |
534 | TP_PROTO(struct request_queue *q), | |
535 | ||
536 | TP_ARGS(q), | |
537 | #endif | |
f62b389e MD |
538 | |
539 | TP_STRUCT__entry( | |
540 | __field( int, nr_rq ) | |
64c796d8 | 541 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
542 | ), |
543 | ||
544 | TP_fast_assign( | |
7c68b363 | 545 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e | 546 | tp_assign(nr_rq, depth) |
7c68b363 AG |
547 | #else |
548 | tp_assign(nr_rq, q->rq.count[READ] + q->rq.count[WRITE]) | |
549 | #endif | |
f62b389e MD |
550 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
551 | ), | |
552 | ||
553 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
554 | ) | |
555 | ||
7c68b363 AG |
556 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) |
557 | /** | |
558 | * block_unplug_timer - timed release of operations requests in queue to device driver | |
559 | * @q: request queue to unplug | |
560 | * | |
561 | * Unplug the request queue @q because a timer expired and allow block | |
562 | * operation requests to be sent to the device driver. | |
563 | */ | |
564 | DEFINE_EVENT(block_unplug, block_unplug_timer, | |
565 | ||
566 | TP_PROTO(struct request_queue *q), | |
567 | ||
568 | TP_ARGS(q) | |
569 | ) | |
570 | #endif | |
571 | ||
f62b389e MD |
572 | /** |
573 | * block_unplug - release of operations requests in request queue | |
574 | * @q: request queue to unplug | |
575 | * @depth: number of requests just added to the queue | |
576 | * @explicit: whether this was an explicit unplug, or one from schedule() | |
577 | * | |
578 | * Unplug request queue @q because device driver is scheduled to work | |
579 | * on elements in the request queue. | |
580 | */ | |
7c68b363 | 581 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e | 582 | DEFINE_EVENT(block_unplug, block_unplug, |
7c68b363 AG |
583 | #else |
584 | DEFINE_EVENT(block_unplug, block_unplug_io, | |
585 | #endif | |
f62b389e | 586 | |
7c68b363 | 587 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e MD |
588 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
589 | ||
590 | TP_ARGS(q, depth, explicit) | |
7c68b363 AG |
591 | #else |
592 | TP_PROTO(struct request_queue *q), | |
593 | ||
594 | TP_ARGS(q) | |
595 | #endif | |
f62b389e MD |
596 | ) |
597 | ||
598 | /** | |
599 | * block_split - split a single bio struct into two bio structs | |
600 | * @q: queue containing the bio | |
601 | * @bio: block operation being split | |
602 | * @new_sector: The starting sector for the new bio | |
603 | * | |
604 | * The bio request @bio in request queue @q needs to be split into two | |
605 | * bio requests. The newly created @bio request starts at | |
606 | * @new_sector. This split may be required due to hardware limitation | |
607 | * such as operation crossing device boundaries in a RAID system. | |
608 | */ | |
609 | TRACE_EVENT(block_split, | |
610 | ||
611 | TP_PROTO(struct request_queue *q, struct bio *bio, | |
612 | unsigned int new_sector), | |
613 | ||
614 | TP_ARGS(q, bio, new_sector), | |
615 | ||
616 | TP_STRUCT__entry( | |
617 | __field( dev_t, dev ) | |
618 | __field( sector_t, sector ) | |
619 | __field( sector_t, new_sector ) | |
620 | __field( unsigned int, rwbs ) | |
64c796d8 | 621 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
622 | ), |
623 | ||
624 | TP_fast_assign( | |
625 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
626 | tp_assign(sector, bio->bi_sector) | |
627 | tp_assign(new_sector, new_sector) | |
628 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
629 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
630 | ), | |
631 | ||
632 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
633 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
634 | __print_rwbs_flags(__entry->rwbs), | |
635 | (unsigned long long)__entry->sector, | |
636 | (unsigned long long)__entry->new_sector, | |
637 | __entry->comm) | |
638 | ) | |
639 | ||
640 | /** | |
641 | * block_bio_remap - map request for a logical device to the raw device | |
642 | * @q: queue holding the operation | |
643 | * @bio: revised operation | |
644 | * @dev: device for the operation | |
645 | * @from: original sector for the operation | |
646 | * | |
647 | * An operation for a logical device has been mapped to the | |
648 | * raw block device. | |
649 | */ | |
7c68b363 | 650 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e | 651 | TRACE_EVENT(block_bio_remap, |
7c68b363 AG |
652 | #else |
653 | TRACE_EVENT(block_remap, | |
654 | #endif | |
f62b389e MD |
655 | |
656 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
657 | sector_t from), | |
658 | ||
659 | TP_ARGS(q, bio, dev, from), | |
660 | ||
661 | TP_STRUCT__entry( | |
662 | __field( dev_t, dev ) | |
663 | __field( sector_t, sector ) | |
664 | __field( unsigned int, nr_sector ) | |
665 | __field( dev_t, old_dev ) | |
666 | __field( sector_t, old_sector ) | |
667 | __field( unsigned int, rwbs ) | |
668 | ), | |
669 | ||
670 | TP_fast_assign( | |
671 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
672 | tp_assign(sector, bio->bi_sector) | |
673 | tp_assign(nr_sector, bio->bi_size >> 9) | |
674 | tp_assign(old_dev, dev) | |
675 | tp_assign(old_sector, from) | |
676 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
677 | ), | |
678 | ||
679 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
680 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
681 | __print_rwbs_flags(__entry->rwbs), | |
682 | (unsigned long long)__entry->sector, | |
683 | __entry->nr_sector, | |
684 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
685 | (unsigned long long)__entry->old_sector) | |
686 | ) | |
687 | ||
7c68b363 | 688 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)) |
f62b389e MD |
689 | /** |
690 | * block_rq_remap - map request for a block operation request | |
691 | * @q: queue holding the operation | |
692 | * @rq: block IO operation request | |
693 | * @dev: device for the operation | |
694 | * @from: original sector for the operation | |
695 | * | |
696 | * The block operation request @rq in @q has been remapped. The block | |
697 | * operation request @rq holds the current information and @from hold | |
698 | * the original sector. | |
699 | */ | |
700 | TRACE_EVENT(block_rq_remap, | |
701 | ||
702 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
703 | sector_t from), | |
704 | ||
705 | TP_ARGS(q, rq, dev, from), | |
706 | ||
707 | TP_STRUCT__entry( | |
708 | __field( dev_t, dev ) | |
709 | __field( sector_t, sector ) | |
710 | __field( unsigned int, nr_sector ) | |
711 | __field( dev_t, old_dev ) | |
712 | __field( sector_t, old_sector ) | |
713 | __field( unsigned int, rwbs ) | |
714 | ), | |
715 | ||
716 | TP_fast_assign( | |
717 | tp_assign(dev, disk_devt(rq->rq_disk)) | |
718 | tp_assign(sector, blk_rq_pos(rq)) | |
719 | tp_assign(nr_sector, blk_rq_sectors(rq)) | |
720 | tp_assign(old_dev, dev) | |
721 | tp_assign(old_sector, from) | |
722 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
723 | ), | |
724 | ||
725 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
726 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
727 | __print_rwbs_flags(__entry->rwbs), | |
728 | (unsigned long long)__entry->sector, | |
729 | __entry->nr_sector, | |
730 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
731 | (unsigned long long)__entry->old_sector) | |
732 | ) | |
7c68b363 | 733 | #endif |
f62b389e MD |
734 | |
735 | #undef __print_rwbs_flags | |
736 | #undef blk_fill_rwbs | |
737 | ||
738 | #endif /* _TRACE_BLOCK_H */ | |
739 | ||
740 | /* This part must be outside protection */ | |
5b88d86e | 741 | #include "../../../probes/define_trace.h" |
f62b389e | 742 |