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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 | ||
217f66c6 MD |
101 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
102 | DECLARE_EVENT_CLASS(block_buffer, | |
103 | ||
104 | TP_PROTO(struct buffer_head *bh), | |
105 | ||
106 | TP_ARGS(bh), | |
107 | ||
108 | TP_STRUCT__entry ( | |
109 | __field( dev_t, dev ) | |
110 | __field( sector_t, sector ) | |
111 | __field( size_t, size ) | |
112 | ), | |
113 | ||
114 | TP_fast_assign( | |
115 | tp_assign(dev, bh->b_bdev->bd_dev) | |
116 | tp_assign(sector, bh->b_blocknr) | |
117 | tp_assign(size, bh->b_size) | |
118 | ), | |
119 | ||
120 | TP_printk("%d,%d sector=%llu size=%zu", | |
121 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
122 | (unsigned long long)__entry->sector, __entry->size | |
123 | ) | |
124 | ) | |
125 | ||
126 | /** | |
127 | * block_touch_buffer - mark a buffer accessed | |
128 | * @bh: buffer_head being touched | |
129 | * | |
130 | * Called from touch_buffer(). | |
131 | */ | |
132 | DEFINE_EVENT(block_buffer, block_touch_buffer, | |
133 | ||
134 | TP_PROTO(struct buffer_head *bh), | |
135 | ||
136 | TP_ARGS(bh) | |
137 | ) | |
138 | ||
139 | /** | |
140 | * block_dirty_buffer - mark a buffer dirty | |
141 | * @bh: buffer_head being dirtied | |
142 | * | |
143 | * Called from mark_buffer_dirty(). | |
144 | */ | |
145 | DEFINE_EVENT(block_buffer, block_dirty_buffer, | |
146 | ||
147 | TP_PROTO(struct buffer_head *bh), | |
148 | ||
149 | TP_ARGS(bh) | |
150 | ) | |
151 | #endif | |
152 | ||
f62b389e MD |
153 | DECLARE_EVENT_CLASS(block_rq_with_error, |
154 | ||
155 | TP_PROTO(struct request_queue *q, struct request *rq), | |
156 | ||
157 | TP_ARGS(q, rq), | |
158 | ||
159 | TP_STRUCT__entry( | |
160 | __field( dev_t, dev ) | |
161 | __field( sector_t, sector ) | |
162 | __field( unsigned int, nr_sector ) | |
163 | __field( int, errors ) | |
164 | __field( unsigned int, rwbs ) | |
16830439 MD |
165 | __dynamic_array_hex( unsigned char, cmd, |
166 | (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
167 | rq->cmd_len : 0) | |
f62b389e MD |
168 | ), |
169 | ||
170 | TP_fast_assign( | |
171 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
172 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
173 | 0 : blk_rq_pos(rq)) | |
174 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
175 | 0 : blk_rq_sectors(rq)) | |
176 | tp_assign(errors, rq->errors) | |
177 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 | 178 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
217f66c6 | 179 | rq->cmd : NULL) |
f62b389e MD |
180 | ), |
181 | ||
182 | TP_printk("%d,%d %s (%s) %llu + %u [%d]", | |
183 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
184 | __print_rwbs_flags(__entry->rwbs), | |
185 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
186 | __get_dynamic_array_len(cmd)), | |
187 | (unsigned long long)__entry->sector, | |
188 | __entry->nr_sector, __entry->errors) | |
189 | ) | |
190 | ||
191 | /** | |
192 | * block_rq_abort - abort block operation request | |
193 | * @q: queue containing the block operation request | |
194 | * @rq: block IO operation request | |
195 | * | |
196 | * Called immediately after pending block IO operation request @rq in | |
197 | * queue @q is aborted. The fields in the operation request @rq | |
198 | * can be examined to determine which device and sectors the pending | |
199 | * operation would access. | |
200 | */ | |
201 | DEFINE_EVENT(block_rq_with_error, block_rq_abort, | |
202 | ||
203 | TP_PROTO(struct request_queue *q, struct request *rq), | |
204 | ||
205 | TP_ARGS(q, rq) | |
206 | ) | |
207 | ||
208 | /** | |
209 | * block_rq_requeue - place block IO request back on a queue | |
210 | * @q: queue holding operation | |
211 | * @rq: block IO operation request | |
212 | * | |
213 | * The block operation request @rq is being placed back into queue | |
214 | * @q. For some reason the request was not completed and needs to be | |
215 | * put back in the queue. | |
216 | */ | |
217 | DEFINE_EVENT(block_rq_with_error, block_rq_requeue, | |
218 | ||
219 | TP_PROTO(struct request_queue *q, struct request *rq), | |
220 | ||
221 | TP_ARGS(q, rq) | |
222 | ) | |
223 | ||
224 | /** | |
225 | * block_rq_complete - block IO operation completed by device driver | |
226 | * @q: queue containing the block operation request | |
227 | * @rq: block operations request | |
228 | * | |
229 | * The block_rq_complete tracepoint event indicates that some portion | |
230 | * of operation request has been completed by the device driver. If | |
231 | * the @rq->bio is %NULL, then there is absolutely no additional work to | |
232 | * do for the request. If @rq->bio is non-NULL then there is | |
233 | * additional work required to complete the request. | |
234 | */ | |
235 | DEFINE_EVENT(block_rq_with_error, block_rq_complete, | |
236 | ||
237 | TP_PROTO(struct request_queue *q, struct request *rq), | |
238 | ||
239 | TP_ARGS(q, rq) | |
240 | ) | |
241 | ||
242 | DECLARE_EVENT_CLASS(block_rq, | |
243 | ||
244 | TP_PROTO(struct request_queue *q, struct request *rq), | |
245 | ||
246 | TP_ARGS(q, rq), | |
247 | ||
248 | TP_STRUCT__entry( | |
249 | __field( dev_t, dev ) | |
250 | __field( sector_t, sector ) | |
251 | __field( unsigned int, nr_sector ) | |
252 | __field( unsigned int, bytes ) | |
253 | __field( unsigned int, rwbs ) | |
64c796d8 | 254 | __array_text( char, comm, TASK_COMM_LEN ) |
16830439 MD |
255 | __dynamic_array_hex( unsigned char, cmd, |
256 | (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
257 | rq->cmd_len : 0) | |
f62b389e MD |
258 | ), |
259 | ||
260 | TP_fast_assign( | |
261 | tp_assign(dev, rq->rq_disk ? disk_devt(rq->rq_disk) : 0) | |
262 | tp_assign(sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
263 | 0 : blk_rq_pos(rq)) | |
264 | tp_assign(nr_sector, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
265 | 0 : blk_rq_sectors(rq)) | |
266 | tp_assign(bytes, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? | |
267 | blk_rq_bytes(rq) : 0) | |
268 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
e17d7b27 | 269 | tp_memcpy_dyn(cmd, (rq->cmd_type == REQ_TYPE_BLOCK_PC) ? |
217f66c6 | 270 | rq->cmd : NULL) |
f62b389e MD |
271 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
272 | ), | |
273 | ||
274 | TP_printk("%d,%d %s %u (%s) %llu + %u [%s]", | |
275 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
276 | __print_rwbs_flags(__entry->rwbs), | |
277 | __entry->bytes, | |
278 | __blk_dump_cmd(__get_dynamic_array(cmd), | |
279 | __get_dynamic_array_len(cmd)), | |
280 | (unsigned long long)__entry->sector, | |
281 | __entry->nr_sector, __entry->comm) | |
282 | ) | |
283 | ||
284 | /** | |
285 | * block_rq_insert - insert block operation request into queue | |
286 | * @q: target queue | |
287 | * @rq: block IO operation request | |
288 | * | |
289 | * Called immediately before block operation request @rq is inserted | |
290 | * into queue @q. The fields in the operation request @rq struct can | |
291 | * be examined to determine which device and sectors the pending | |
292 | * operation would access. | |
293 | */ | |
294 | DEFINE_EVENT(block_rq, block_rq_insert, | |
295 | ||
296 | TP_PROTO(struct request_queue *q, struct request *rq), | |
297 | ||
298 | TP_ARGS(q, rq) | |
299 | ) | |
300 | ||
301 | /** | |
302 | * block_rq_issue - issue pending block IO request operation to device driver | |
303 | * @q: queue holding operation | |
304 | * @rq: block IO operation operation request | |
305 | * | |
306 | * Called when block operation request @rq from queue @q is sent to a | |
307 | * device driver for processing. | |
308 | */ | |
309 | DEFINE_EVENT(block_rq, block_rq_issue, | |
310 | ||
311 | TP_PROTO(struct request_queue *q, struct request *rq), | |
312 | ||
313 | TP_ARGS(q, rq) | |
314 | ) | |
315 | ||
316 | /** | |
317 | * block_bio_bounce - used bounce buffer when processing block operation | |
318 | * @q: queue holding the block operation | |
319 | * @bio: block operation | |
320 | * | |
321 | * A bounce buffer was used to handle the block operation @bio in @q. | |
322 | * This occurs when hardware limitations prevent a direct transfer of | |
323 | * data between the @bio data memory area and the IO device. Use of a | |
324 | * bounce buffer requires extra copying of data and decreases | |
325 | * performance. | |
326 | */ | |
327 | TRACE_EVENT(block_bio_bounce, | |
328 | ||
329 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
330 | ||
331 | TP_ARGS(q, bio), | |
332 | ||
333 | TP_STRUCT__entry( | |
334 | __field( dev_t, dev ) | |
335 | __field( sector_t, sector ) | |
336 | __field( unsigned int, nr_sector ) | |
337 | __field( unsigned int, rwbs ) | |
64c796d8 | 338 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
339 | ), |
340 | ||
341 | TP_fast_assign( | |
342 | tp_assign(dev, bio->bi_bdev ? | |
343 | bio->bi_bdev->bd_dev : 0) | |
344 | tp_assign(sector, bio->bi_sector) | |
345 | tp_assign(nr_sector, bio->bi_size >> 9) | |
346 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
347 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
348 | ), | |
349 | ||
350 | TP_printk("%d,%d %s %llu + %u [%s]", | |
351 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
352 | __print_rwbs_flags(__entry->rwbs), | |
353 | (unsigned long long)__entry->sector, | |
354 | __entry->nr_sector, __entry->comm) | |
355 | ) | |
356 | ||
357 | /** | |
358 | * block_bio_complete - completed all work on the block operation | |
359 | * @q: queue holding the block operation | |
360 | * @bio: block operation completed | |
361 | * @error: io error value | |
362 | * | |
363 | * This tracepoint indicates there is no further work to do on this | |
364 | * block IO operation @bio. | |
365 | */ | |
366 | TRACE_EVENT(block_bio_complete, | |
367 | ||
1bc491fc | 368 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e MD |
369 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), |
370 | ||
371 | TP_ARGS(q, bio, error), | |
7c68b363 AG |
372 | #else |
373 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
374 | ||
375 | TP_ARGS(q, bio), | |
376 | #endif | |
f62b389e MD |
377 | |
378 | TP_STRUCT__entry( | |
379 | __field( dev_t, dev ) | |
380 | __field( sector_t, sector ) | |
381 | __field( unsigned, nr_sector ) | |
382 | __field( int, error ) | |
383 | __field( unsigned int, rwbs ) | |
384 | ), | |
385 | ||
386 | TP_fast_assign( | |
387 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
388 | tp_assign(sector, bio->bi_sector) | |
389 | tp_assign(nr_sector, bio->bi_size >> 9) | |
7c68b363 | 390 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e | 391 | tp_assign(error, error) |
7c68b363 AG |
392 | #else |
393 | tp_assign(error, 0) | |
394 | #endif | |
f62b389e MD |
395 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) |
396 | ), | |
397 | ||
398 | TP_printk("%d,%d %s %llu + %u [%d]", | |
399 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
400 | __print_rwbs_flags(__entry->rwbs), | |
401 | (unsigned long long)__entry->sector, | |
402 | __entry->nr_sector, __entry->error) | |
403 | ) | |
404 | ||
217f66c6 MD |
405 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
406 | DECLARE_EVENT_CLASS(block_bio_merge, | |
407 | ||
408 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
409 | ||
410 | TP_ARGS(q, rq, bio), | |
411 | ||
412 | TP_STRUCT__entry( | |
413 | __field( dev_t, dev ) | |
414 | __field( sector_t, sector ) | |
415 | __field( unsigned int, nr_sector ) | |
416 | __field( unsigned int, rwbs ) | |
417 | __array_text( char, comm, TASK_COMM_LEN ) | |
418 | ), | |
419 | ||
420 | TP_fast_assign( | |
421 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
422 | tp_assign(sector, bio->bi_sector) | |
423 | tp_assign(nr_sector, bio->bi_size >> 9) | |
424 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
425 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
426 | ), | |
427 | ||
428 | TP_printk("%d,%d %s %llu + %u [%s]", | |
429 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
430 | __print_rwbs_flags(__entry->rwbs), | |
431 | (unsigned long long)__entry->sector, | |
432 | __entry->nr_sector, __entry->comm) | |
433 | ) | |
434 | ||
435 | /** | |
436 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
437 | * @q: queue holding operation | |
438 | * @bio: new block operation to merge | |
439 | * | |
440 | * Merging block request @bio to the end of an existing block request | |
441 | * in queue @q. | |
442 | */ | |
443 | DEFINE_EVENT(block_bio_merge, block_bio_backmerge, | |
444 | ||
445 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
446 | ||
447 | TP_ARGS(q, rq, bio) | |
448 | ) | |
449 | ||
450 | /** | |
451 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
452 | * @q: queue holding operation | |
453 | * @bio: new block operation to merge | |
454 | * | |
455 | * Merging block IO operation @bio to the beginning of an existing block | |
456 | * operation in queue @q. | |
457 | */ | |
458 | DEFINE_EVENT(block_bio_merge, block_bio_frontmerge, | |
459 | ||
460 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
461 | ||
462 | TP_ARGS(q, rq, bio) | |
463 | ) | |
464 | ||
465 | /** | |
466 | * block_bio_queue - putting new block IO operation in queue | |
467 | * @q: queue holding operation | |
468 | * @bio: new block operation | |
469 | * | |
470 | * About to place the block IO operation @bio into queue @q. | |
471 | */ | |
472 | TRACE_EVENT(block_bio_queue, | |
473 | ||
474 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
475 | ||
476 | TP_ARGS(q, bio), | |
477 | ||
478 | TP_STRUCT__entry( | |
479 | __field( dev_t, dev ) | |
480 | __field( sector_t, sector ) | |
481 | __field( unsigned int, nr_sector ) | |
482 | __array( char, rwbs, RWBS_LEN ) | |
483 | __array( char, comm, TASK_COMM_LEN ) | |
484 | ), | |
485 | ||
486 | TP_fast_assign( | |
487 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
488 | tp_assign(sector, bio->bi_sector) | |
489 | tp_assign(nr_sector, bio->bi_size >> 9) | |
490 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
491 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
492 | ), | |
493 | ||
494 | TP_printk("%d,%d %s %llu + %u [%s]", | |
495 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
496 | (unsigned long long)__entry->sector, | |
497 | __entry->nr_sector, __entry->comm) | |
498 | ) | |
499 | #else | |
f62b389e MD |
500 | DECLARE_EVENT_CLASS(block_bio, |
501 | ||
502 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
503 | ||
504 | TP_ARGS(q, bio), | |
505 | ||
506 | TP_STRUCT__entry( | |
507 | __field( dev_t, dev ) | |
508 | __field( sector_t, sector ) | |
509 | __field( unsigned int, nr_sector ) | |
510 | __field( unsigned int, rwbs ) | |
64c796d8 | 511 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
512 | ), |
513 | ||
514 | TP_fast_assign( | |
058e913a | 515 | tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0) |
f62b389e MD |
516 | tp_assign(sector, bio->bi_sector) |
517 | tp_assign(nr_sector, bio->bi_size >> 9) | |
518 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
519 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
520 | ), | |
521 | ||
522 | TP_printk("%d,%d %s %llu + %u [%s]", | |
523 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
524 | __print_rwbs_flags(__entry->rwbs), | |
525 | (unsigned long long)__entry->sector, | |
526 | __entry->nr_sector, __entry->comm) | |
527 | ) | |
528 | ||
529 | /** | |
530 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
531 | * @q: queue holding operation | |
532 | * @bio: new block operation to merge | |
533 | * | |
534 | * Merging block request @bio to the end of an existing block request | |
535 | * in queue @q. | |
536 | */ | |
537 | DEFINE_EVENT(block_bio, block_bio_backmerge, | |
538 | ||
539 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
540 | ||
541 | TP_ARGS(q, bio) | |
542 | ) | |
543 | ||
544 | /** | |
545 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
546 | * @q: queue holding operation | |
547 | * @bio: new block operation to merge | |
548 | * | |
549 | * Merging block IO operation @bio to the beginning of an existing block | |
550 | * operation in queue @q. | |
551 | */ | |
552 | DEFINE_EVENT(block_bio, block_bio_frontmerge, | |
553 | ||
554 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
555 | ||
556 | TP_ARGS(q, bio) | |
557 | ) | |
558 | ||
559 | /** | |
560 | * block_bio_queue - putting new block IO operation in queue | |
561 | * @q: queue holding operation | |
562 | * @bio: new block operation | |
563 | * | |
564 | * About to place the block IO operation @bio into queue @q. | |
565 | */ | |
566 | DEFINE_EVENT(block_bio, block_bio_queue, | |
567 | ||
568 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
569 | ||
570 | TP_ARGS(q, bio) | |
571 | ) | |
217f66c6 | 572 | #endif |
f62b389e MD |
573 | |
574 | DECLARE_EVENT_CLASS(block_get_rq, | |
575 | ||
576 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
577 | ||
578 | TP_ARGS(q, bio, rw), | |
579 | ||
580 | TP_STRUCT__entry( | |
581 | __field( dev_t, dev ) | |
582 | __field( sector_t, sector ) | |
583 | __field( unsigned int, nr_sector ) | |
584 | __field( unsigned int, rwbs ) | |
64c796d8 | 585 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
586 | ), |
587 | ||
588 | TP_fast_assign( | |
589 | tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0) | |
590 | tp_assign(sector, bio ? bio->bi_sector : 0) | |
591 | tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0) | |
592 | blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0, | |
593 | bio ? bio->bi_size >> 9 : 0) | |
594 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
595 | ), | |
596 | ||
597 | TP_printk("%d,%d %s %llu + %u [%s]", | |
598 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
599 | __print_rwbs_flags(__entry->rwbs), | |
600 | (unsigned long long)__entry->sector, | |
601 | __entry->nr_sector, __entry->comm) | |
602 | ) | |
603 | ||
604 | /** | |
605 | * block_getrq - get a free request entry in queue for block IO operations | |
606 | * @q: queue for operations | |
607 | * @bio: pending block IO operation | |
608 | * @rw: low bit indicates a read (%0) or a write (%1) | |
609 | * | |
610 | * A request struct for queue @q has been allocated to handle the | |
611 | * block IO operation @bio. | |
612 | */ | |
613 | DEFINE_EVENT(block_get_rq, block_getrq, | |
614 | ||
615 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
616 | ||
617 | TP_ARGS(q, bio, rw) | |
618 | ) | |
619 | ||
620 | /** | |
621 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation | |
622 | * @q: queue for operation | |
623 | * @bio: pending block IO operation | |
624 | * @rw: low bit indicates a read (%0) or a write (%1) | |
625 | * | |
626 | * In the case where a request struct cannot be provided for queue @q | |
627 | * the process needs to wait for an request struct to become | |
628 | * available. This tracepoint event is generated each time the | |
629 | * process goes to sleep waiting for request struct become available. | |
630 | */ | |
631 | DEFINE_EVENT(block_get_rq, block_sleeprq, | |
632 | ||
633 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
634 | ||
635 | TP_ARGS(q, bio, rw) | |
636 | ) | |
637 | ||
638 | /** | |
639 | * block_plug - keep operations requests in request queue | |
640 | * @q: request queue to plug | |
641 | * | |
642 | * Plug the request queue @q. Do not allow block operation requests | |
643 | * to be sent to the device driver. Instead, accumulate requests in | |
644 | * the queue to improve throughput performance of the block device. | |
645 | */ | |
646 | TRACE_EVENT(block_plug, | |
647 | ||
648 | TP_PROTO(struct request_queue *q), | |
649 | ||
650 | TP_ARGS(q), | |
651 | ||
652 | TP_STRUCT__entry( | |
64c796d8 | 653 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
654 | ), |
655 | ||
656 | TP_fast_assign( | |
657 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
658 | ), | |
659 | ||
660 | TP_printk("[%s]", __entry->comm) | |
661 | ) | |
662 | ||
663 | DECLARE_EVENT_CLASS(block_unplug, | |
664 | ||
7c68b363 | 665 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e MD |
666 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
667 | ||
668 | TP_ARGS(q, depth, explicit), | |
7c68b363 AG |
669 | #else |
670 | TP_PROTO(struct request_queue *q), | |
671 | ||
672 | TP_ARGS(q), | |
673 | #endif | |
f62b389e MD |
674 | |
675 | TP_STRUCT__entry( | |
676 | __field( int, nr_rq ) | |
64c796d8 | 677 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
678 | ), |
679 | ||
680 | TP_fast_assign( | |
7c68b363 | 681 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e | 682 | tp_assign(nr_rq, depth) |
7c68b363 AG |
683 | #else |
684 | tp_assign(nr_rq, q->rq.count[READ] + q->rq.count[WRITE]) | |
685 | #endif | |
f62b389e MD |
686 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
687 | ), | |
688 | ||
689 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
690 | ) | |
691 | ||
7c68b363 AG |
692 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) |
693 | /** | |
694 | * block_unplug_timer - timed release of operations requests in queue to device driver | |
695 | * @q: request queue to unplug | |
696 | * | |
697 | * Unplug the request queue @q because a timer expired and allow block | |
698 | * operation requests to be sent to the device driver. | |
699 | */ | |
700 | DEFINE_EVENT(block_unplug, block_unplug_timer, | |
701 | ||
702 | TP_PROTO(struct request_queue *q), | |
703 | ||
704 | TP_ARGS(q) | |
705 | ) | |
706 | #endif | |
707 | ||
f62b389e MD |
708 | /** |
709 | * block_unplug - release of operations requests in request queue | |
710 | * @q: request queue to unplug | |
711 | * @depth: number of requests just added to the queue | |
712 | * @explicit: whether this was an explicit unplug, or one from schedule() | |
713 | * | |
714 | * Unplug request queue @q because device driver is scheduled to work | |
715 | * on elements in the request queue. | |
716 | */ | |
7c68b363 | 717 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e | 718 | DEFINE_EVENT(block_unplug, block_unplug, |
7c68b363 AG |
719 | #else |
720 | DEFINE_EVENT(block_unplug, block_unplug_io, | |
721 | #endif | |
f62b389e | 722 | |
7c68b363 | 723 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e MD |
724 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
725 | ||
726 | TP_ARGS(q, depth, explicit) | |
7c68b363 AG |
727 | #else |
728 | TP_PROTO(struct request_queue *q), | |
729 | ||
730 | TP_ARGS(q) | |
731 | #endif | |
f62b389e MD |
732 | ) |
733 | ||
734 | /** | |
735 | * block_split - split a single bio struct into two bio structs | |
736 | * @q: queue containing the bio | |
737 | * @bio: block operation being split | |
738 | * @new_sector: The starting sector for the new bio | |
739 | * | |
740 | * The bio request @bio in request queue @q needs to be split into two | |
741 | * bio requests. The newly created @bio request starts at | |
742 | * @new_sector. This split may be required due to hardware limitation | |
743 | * such as operation crossing device boundaries in a RAID system. | |
744 | */ | |
745 | TRACE_EVENT(block_split, | |
746 | ||
747 | TP_PROTO(struct request_queue *q, struct bio *bio, | |
748 | unsigned int new_sector), | |
749 | ||
750 | TP_ARGS(q, bio, new_sector), | |
751 | ||
752 | TP_STRUCT__entry( | |
753 | __field( dev_t, dev ) | |
754 | __field( sector_t, sector ) | |
755 | __field( sector_t, new_sector ) | |
756 | __field( unsigned int, rwbs ) | |
64c796d8 | 757 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
758 | ), |
759 | ||
760 | TP_fast_assign( | |
761 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
762 | tp_assign(sector, bio->bi_sector) | |
763 | tp_assign(new_sector, new_sector) | |
764 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
765 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
766 | ), | |
767 | ||
768 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
769 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
770 | __print_rwbs_flags(__entry->rwbs), | |
771 | (unsigned long long)__entry->sector, | |
772 | (unsigned long long)__entry->new_sector, | |
773 | __entry->comm) | |
774 | ) | |
775 | ||
776 | /** | |
777 | * block_bio_remap - map request for a logical device to the raw device | |
778 | * @q: queue holding the operation | |
779 | * @bio: revised operation | |
780 | * @dev: device for the operation | |
781 | * @from: original sector for the operation | |
782 | * | |
783 | * An operation for a logical device has been mapped to the | |
784 | * raw block device. | |
785 | */ | |
7c68b363 | 786 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e | 787 | TRACE_EVENT(block_bio_remap, |
7c68b363 AG |
788 | #else |
789 | TRACE_EVENT(block_remap, | |
790 | #endif | |
f62b389e MD |
791 | |
792 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
793 | sector_t from), | |
794 | ||
795 | TP_ARGS(q, bio, dev, from), | |
796 | ||
797 | TP_STRUCT__entry( | |
798 | __field( dev_t, dev ) | |
799 | __field( sector_t, sector ) | |
800 | __field( unsigned int, nr_sector ) | |
801 | __field( dev_t, old_dev ) | |
802 | __field( sector_t, old_sector ) | |
803 | __field( unsigned int, rwbs ) | |
804 | ), | |
805 | ||
806 | TP_fast_assign( | |
807 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
808 | tp_assign(sector, bio->bi_sector) | |
809 | tp_assign(nr_sector, bio->bi_size >> 9) | |
810 | tp_assign(old_dev, dev) | |
811 | tp_assign(old_sector, from) | |
812 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
813 | ), | |
814 | ||
815 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
816 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
817 | __print_rwbs_flags(__entry->rwbs), | |
818 | (unsigned long long)__entry->sector, | |
819 | __entry->nr_sector, | |
820 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
821 | (unsigned long long)__entry->old_sector) | |
822 | ) | |
823 | ||
7c68b363 | 824 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)) |
f62b389e MD |
825 | /** |
826 | * block_rq_remap - map request for a block operation request | |
827 | * @q: queue holding the operation | |
828 | * @rq: block IO operation request | |
829 | * @dev: device for the operation | |
830 | * @from: original sector for the operation | |
831 | * | |
832 | * The block operation request @rq in @q has been remapped. The block | |
833 | * operation request @rq holds the current information and @from hold | |
834 | * the original sector. | |
835 | */ | |
836 | TRACE_EVENT(block_rq_remap, | |
837 | ||
838 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
839 | sector_t from), | |
840 | ||
841 | TP_ARGS(q, rq, dev, from), | |
842 | ||
843 | TP_STRUCT__entry( | |
844 | __field( dev_t, dev ) | |
845 | __field( sector_t, sector ) | |
846 | __field( unsigned int, nr_sector ) | |
847 | __field( dev_t, old_dev ) | |
848 | __field( sector_t, old_sector ) | |
849 | __field( unsigned int, rwbs ) | |
850 | ), | |
851 | ||
852 | TP_fast_assign( | |
853 | tp_assign(dev, disk_devt(rq->rq_disk)) | |
854 | tp_assign(sector, blk_rq_pos(rq)) | |
855 | tp_assign(nr_sector, blk_rq_sectors(rq)) | |
856 | tp_assign(old_dev, dev) | |
857 | tp_assign(old_sector, from) | |
858 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
859 | ), | |
860 | ||
861 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
862 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
863 | __print_rwbs_flags(__entry->rwbs), | |
864 | (unsigned long long)__entry->sector, | |
865 | __entry->nr_sector, | |
866 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
867 | (unsigned long long)__entry->old_sector) | |
868 | ) | |
7c68b363 | 869 | #endif |
f62b389e MD |
870 | |
871 | #undef __print_rwbs_flags | |
872 | #undef blk_fill_rwbs | |
873 | ||
874 | #endif /* _TRACE_BLOCK_H */ | |
875 | ||
876 | /* This part must be outside protection */ | |
5b88d86e | 877 | #include "../../../probes/define_trace.h" |
f62b389e | 878 |