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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( | |
54c4c2e3 MD |
342 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
343 | tp_assign(dev, bio->bi_bdev ? | |
344 | bio->bi_bdev->bd_dev : 0) | |
345 | tp_assign(sector, bio->bi_iter.bi_sector) | |
346 | tp_assign(nr_sector, bio_sectors(bio)) | |
347 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size) | |
348 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
349 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
f62b389e MD |
350 | tp_assign(dev, bio->bi_bdev ? |
351 | bio->bi_bdev->bd_dev : 0) | |
352 | tp_assign(sector, bio->bi_sector) | |
353 | tp_assign(nr_sector, bio->bi_size >> 9) | |
354 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
355 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
54c4c2e3 | 356 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
f62b389e MD |
357 | ), |
358 | ||
359 | TP_printk("%d,%d %s %llu + %u [%s]", | |
360 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
361 | __print_rwbs_flags(__entry->rwbs), | |
362 | (unsigned long long)__entry->sector, | |
363 | __entry->nr_sector, __entry->comm) | |
364 | ) | |
365 | ||
366 | /** | |
367 | * block_bio_complete - completed all work on the block operation | |
368 | * @q: queue holding the block operation | |
369 | * @bio: block operation completed | |
370 | * @error: io error value | |
371 | * | |
372 | * This tracepoint indicates there is no further work to do on this | |
373 | * block IO operation @bio. | |
374 | */ | |
375 | TRACE_EVENT(block_bio_complete, | |
376 | ||
1bc491fc | 377 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e MD |
378 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), |
379 | ||
380 | TP_ARGS(q, bio, error), | |
7c68b363 AG |
381 | #else |
382 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
383 | ||
384 | TP_ARGS(q, bio), | |
385 | #endif | |
f62b389e MD |
386 | |
387 | TP_STRUCT__entry( | |
388 | __field( dev_t, dev ) | |
389 | __field( sector_t, sector ) | |
390 | __field( unsigned, nr_sector ) | |
391 | __field( int, error ) | |
392 | __field( unsigned int, rwbs ) | |
393 | ), | |
394 | ||
395 | TP_fast_assign( | |
54c4c2e3 MD |
396 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
397 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
398 | tp_assign(sector, bio->bi_iter.bi_sector) | |
399 | tp_assign(nr_sector, bio_sectors(bio)) | |
400 | tp_assign(error, error) | |
401 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size) | |
402 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
f62b389e MD |
403 | tp_assign(dev, bio->bi_bdev->bd_dev) |
404 | tp_assign(sector, bio->bi_sector) | |
405 | tp_assign(nr_sector, bio->bi_size >> 9) | |
7c68b363 | 406 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e | 407 | tp_assign(error, error) |
7c68b363 AG |
408 | #else |
409 | tp_assign(error, 0) | |
410 | #endif | |
f62b389e | 411 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) |
54c4c2e3 | 412 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
f62b389e MD |
413 | ), |
414 | ||
415 | TP_printk("%d,%d %s %llu + %u [%d]", | |
416 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
417 | __print_rwbs_flags(__entry->rwbs), | |
418 | (unsigned long long)__entry->sector, | |
419 | __entry->nr_sector, __entry->error) | |
420 | ) | |
421 | ||
217f66c6 MD |
422 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) |
423 | DECLARE_EVENT_CLASS(block_bio_merge, | |
424 | ||
425 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
426 | ||
427 | TP_ARGS(q, rq, bio), | |
428 | ||
429 | TP_STRUCT__entry( | |
430 | __field( dev_t, dev ) | |
431 | __field( sector_t, sector ) | |
432 | __field( unsigned int, nr_sector ) | |
433 | __field( unsigned int, rwbs ) | |
434 | __array_text( char, comm, TASK_COMM_LEN ) | |
435 | ), | |
436 | ||
437 | TP_fast_assign( | |
54c4c2e3 MD |
438 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
439 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
440 | tp_assign(sector, bio->bi_iter.bi_sector) | |
441 | tp_assign(nr_sector, bio_sectors(bio)) | |
442 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size) | |
443 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
444 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
217f66c6 MD |
445 | tp_assign(dev, bio->bi_bdev->bd_dev) |
446 | tp_assign(sector, bio->bi_sector) | |
447 | tp_assign(nr_sector, bio->bi_size >> 9) | |
448 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
449 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
54c4c2e3 | 450 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
217f66c6 MD |
451 | ), |
452 | ||
453 | TP_printk("%d,%d %s %llu + %u [%s]", | |
454 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
455 | __print_rwbs_flags(__entry->rwbs), | |
456 | (unsigned long long)__entry->sector, | |
457 | __entry->nr_sector, __entry->comm) | |
458 | ) | |
459 | ||
460 | /** | |
461 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
462 | * @q: queue holding operation | |
463 | * @bio: new block operation to merge | |
464 | * | |
465 | * Merging block request @bio to the end of an existing block request | |
466 | * in queue @q. | |
467 | */ | |
468 | DEFINE_EVENT(block_bio_merge, block_bio_backmerge, | |
469 | ||
470 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
471 | ||
472 | TP_ARGS(q, rq, bio) | |
473 | ) | |
474 | ||
475 | /** | |
476 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
477 | * @q: queue holding operation | |
478 | * @bio: new block operation to merge | |
479 | * | |
480 | * Merging block IO operation @bio to the beginning of an existing block | |
481 | * operation in queue @q. | |
482 | */ | |
483 | DEFINE_EVENT(block_bio_merge, block_bio_frontmerge, | |
484 | ||
485 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), | |
486 | ||
487 | TP_ARGS(q, rq, bio) | |
488 | ) | |
489 | ||
490 | /** | |
491 | * block_bio_queue - putting new block IO operation in queue | |
492 | * @q: queue holding operation | |
493 | * @bio: new block operation | |
494 | * | |
495 | * About to place the block IO operation @bio into queue @q. | |
496 | */ | |
497 | TRACE_EVENT(block_bio_queue, | |
498 | ||
499 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
500 | ||
501 | TP_ARGS(q, bio), | |
502 | ||
503 | TP_STRUCT__entry( | |
504 | __field( dev_t, dev ) | |
505 | __field( sector_t, sector ) | |
506 | __field( unsigned int, nr_sector ) | |
507 | __array( char, rwbs, RWBS_LEN ) | |
508 | __array( char, comm, TASK_COMM_LEN ) | |
509 | ), | |
510 | ||
511 | TP_fast_assign( | |
54c4c2e3 MD |
512 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
513 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
514 | tp_assign(sector, bio->bi_iter.bi_sector) | |
515 | tp_assign(nr_sector, bio_sectors(bio)) | |
516 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size) | |
517 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
518 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
217f66c6 MD |
519 | tp_assign(dev, bio->bi_bdev->bd_dev) |
520 | tp_assign(sector, bio->bi_sector) | |
521 | tp_assign(nr_sector, bio->bi_size >> 9) | |
522 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
523 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
54c4c2e3 | 524 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
217f66c6 MD |
525 | ), |
526 | ||
527 | TP_printk("%d,%d %s %llu + %u [%s]", | |
528 | MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs, | |
529 | (unsigned long long)__entry->sector, | |
530 | __entry->nr_sector, __entry->comm) | |
531 | ) | |
532 | #else | |
f62b389e MD |
533 | DECLARE_EVENT_CLASS(block_bio, |
534 | ||
535 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
536 | ||
537 | TP_ARGS(q, bio), | |
538 | ||
539 | TP_STRUCT__entry( | |
540 | __field( dev_t, dev ) | |
541 | __field( sector_t, sector ) | |
542 | __field( unsigned int, nr_sector ) | |
543 | __field( unsigned int, rwbs ) | |
64c796d8 | 544 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
545 | ), |
546 | ||
547 | TP_fast_assign( | |
058e913a | 548 | tp_assign(dev, bio->bi_bdev ? bio->bi_bdev->bd_dev : 0) |
f62b389e MD |
549 | tp_assign(sector, bio->bi_sector) |
550 | tp_assign(nr_sector, bio->bi_size >> 9) | |
551 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
552 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
553 | ), | |
554 | ||
555 | TP_printk("%d,%d %s %llu + %u [%s]", | |
556 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
557 | __print_rwbs_flags(__entry->rwbs), | |
558 | (unsigned long long)__entry->sector, | |
559 | __entry->nr_sector, __entry->comm) | |
560 | ) | |
561 | ||
562 | /** | |
563 | * block_bio_backmerge - merging block operation to the end of an existing operation | |
564 | * @q: queue holding operation | |
565 | * @bio: new block operation to merge | |
566 | * | |
567 | * Merging block request @bio to the end of an existing block request | |
568 | * in queue @q. | |
569 | */ | |
570 | DEFINE_EVENT(block_bio, block_bio_backmerge, | |
571 | ||
572 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
573 | ||
574 | TP_ARGS(q, bio) | |
575 | ) | |
576 | ||
577 | /** | |
578 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation | |
579 | * @q: queue holding operation | |
580 | * @bio: new block operation to merge | |
581 | * | |
582 | * Merging block IO operation @bio to the beginning of an existing block | |
583 | * operation in queue @q. | |
584 | */ | |
585 | DEFINE_EVENT(block_bio, block_bio_frontmerge, | |
586 | ||
587 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
588 | ||
589 | TP_ARGS(q, bio) | |
590 | ) | |
591 | ||
592 | /** | |
593 | * block_bio_queue - putting new block IO operation in queue | |
594 | * @q: queue holding operation | |
595 | * @bio: new block operation | |
596 | * | |
597 | * About to place the block IO operation @bio into queue @q. | |
598 | */ | |
599 | DEFINE_EVENT(block_bio, block_bio_queue, | |
600 | ||
601 | TP_PROTO(struct request_queue *q, struct bio *bio), | |
602 | ||
603 | TP_ARGS(q, bio) | |
604 | ) | |
217f66c6 | 605 | #endif |
f62b389e MD |
606 | |
607 | DECLARE_EVENT_CLASS(block_get_rq, | |
608 | ||
609 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
610 | ||
611 | TP_ARGS(q, bio, rw), | |
612 | ||
613 | TP_STRUCT__entry( | |
614 | __field( dev_t, dev ) | |
615 | __field( sector_t, sector ) | |
616 | __field( unsigned int, nr_sector ) | |
617 | __field( unsigned int, rwbs ) | |
64c796d8 | 618 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
619 | ), |
620 | ||
621 | TP_fast_assign( | |
54c4c2e3 MD |
622 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
623 | tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0) | |
624 | tp_assign(sector, bio ? bio->bi_iter.bi_sector : 0) | |
625 | tp_assign(nr_sector, bio ? bio_sectors(bio) : 0) | |
626 | blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0, | |
627 | bio ? bio_sectors(bio) : 0) | |
628 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
629 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
f62b389e MD |
630 | tp_assign(dev, bio ? bio->bi_bdev->bd_dev : 0) |
631 | tp_assign(sector, bio ? bio->bi_sector : 0) | |
632 | tp_assign(nr_sector, bio ? bio->bi_size >> 9 : 0) | |
633 | blk_fill_rwbs(rwbs, bio ? bio->bi_rw : 0, | |
634 | bio ? bio->bi_size >> 9 : 0) | |
635 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
54c4c2e3 | 636 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
f62b389e MD |
637 | ), |
638 | ||
639 | TP_printk("%d,%d %s %llu + %u [%s]", | |
640 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
641 | __print_rwbs_flags(__entry->rwbs), | |
642 | (unsigned long long)__entry->sector, | |
643 | __entry->nr_sector, __entry->comm) | |
644 | ) | |
645 | ||
646 | /** | |
647 | * block_getrq - get a free request entry in queue for block IO operations | |
648 | * @q: queue for operations | |
649 | * @bio: pending block IO operation | |
650 | * @rw: low bit indicates a read (%0) or a write (%1) | |
651 | * | |
652 | * A request struct for queue @q has been allocated to handle the | |
653 | * block IO operation @bio. | |
654 | */ | |
655 | DEFINE_EVENT(block_get_rq, block_getrq, | |
656 | ||
657 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
658 | ||
659 | TP_ARGS(q, bio, rw) | |
660 | ) | |
661 | ||
662 | /** | |
663 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation | |
664 | * @q: queue for operation | |
665 | * @bio: pending block IO operation | |
666 | * @rw: low bit indicates a read (%0) or a write (%1) | |
667 | * | |
668 | * In the case where a request struct cannot be provided for queue @q | |
669 | * the process needs to wait for an request struct to become | |
670 | * available. This tracepoint event is generated each time the | |
671 | * process goes to sleep waiting for request struct become available. | |
672 | */ | |
673 | DEFINE_EVENT(block_get_rq, block_sleeprq, | |
674 | ||
675 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), | |
676 | ||
677 | TP_ARGS(q, bio, rw) | |
678 | ) | |
679 | ||
680 | /** | |
681 | * block_plug - keep operations requests in request queue | |
682 | * @q: request queue to plug | |
683 | * | |
684 | * Plug the request queue @q. Do not allow block operation requests | |
685 | * to be sent to the device driver. Instead, accumulate requests in | |
686 | * the queue to improve throughput performance of the block device. | |
687 | */ | |
688 | TRACE_EVENT(block_plug, | |
689 | ||
690 | TP_PROTO(struct request_queue *q), | |
691 | ||
692 | TP_ARGS(q), | |
693 | ||
694 | TP_STRUCT__entry( | |
64c796d8 | 695 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
696 | ), |
697 | ||
698 | TP_fast_assign( | |
699 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
700 | ), | |
701 | ||
702 | TP_printk("[%s]", __entry->comm) | |
703 | ) | |
704 | ||
705 | DECLARE_EVENT_CLASS(block_unplug, | |
706 | ||
7c68b363 | 707 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e MD |
708 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
709 | ||
710 | TP_ARGS(q, depth, explicit), | |
7c68b363 AG |
711 | #else |
712 | TP_PROTO(struct request_queue *q), | |
713 | ||
714 | TP_ARGS(q), | |
715 | #endif | |
f62b389e MD |
716 | |
717 | TP_STRUCT__entry( | |
718 | __field( int, nr_rq ) | |
64c796d8 | 719 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
720 | ), |
721 | ||
722 | TP_fast_assign( | |
7c68b363 | 723 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e | 724 | tp_assign(nr_rq, depth) |
7c68b363 AG |
725 | #else |
726 | tp_assign(nr_rq, q->rq.count[READ] + q->rq.count[WRITE]) | |
727 | #endif | |
f62b389e MD |
728 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
729 | ), | |
730 | ||
731 | TP_printk("[%s] %d", __entry->comm, __entry->nr_rq) | |
732 | ) | |
733 | ||
7c68b363 AG |
734 | #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)) |
735 | /** | |
736 | * block_unplug_timer - timed release of operations requests in queue to device driver | |
737 | * @q: request queue to unplug | |
738 | * | |
739 | * Unplug the request queue @q because a timer expired and allow block | |
740 | * operation requests to be sent to the device driver. | |
741 | */ | |
742 | DEFINE_EVENT(block_unplug, block_unplug_timer, | |
743 | ||
744 | TP_PROTO(struct request_queue *q), | |
745 | ||
746 | TP_ARGS(q) | |
747 | ) | |
748 | #endif | |
749 | ||
f62b389e MD |
750 | /** |
751 | * block_unplug - release of operations requests in request queue | |
752 | * @q: request queue to unplug | |
753 | * @depth: number of requests just added to the queue | |
754 | * @explicit: whether this was an explicit unplug, or one from schedule() | |
755 | * | |
756 | * Unplug request queue @q because device driver is scheduled to work | |
757 | * on elements in the request queue. | |
758 | */ | |
7c68b363 | 759 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e | 760 | DEFINE_EVENT(block_unplug, block_unplug, |
7c68b363 AG |
761 | #else |
762 | DEFINE_EVENT(block_unplug, block_unplug_io, | |
763 | #endif | |
f62b389e | 764 | |
7c68b363 | 765 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)) |
f62b389e MD |
766 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
767 | ||
768 | TP_ARGS(q, depth, explicit) | |
7c68b363 AG |
769 | #else |
770 | TP_PROTO(struct request_queue *q), | |
771 | ||
772 | TP_ARGS(q) | |
773 | #endif | |
f62b389e MD |
774 | ) |
775 | ||
776 | /** | |
777 | * block_split - split a single bio struct into two bio structs | |
778 | * @q: queue containing the bio | |
779 | * @bio: block operation being split | |
780 | * @new_sector: The starting sector for the new bio | |
781 | * | |
782 | * The bio request @bio in request queue @q needs to be split into two | |
783 | * bio requests. The newly created @bio request starts at | |
784 | * @new_sector. This split may be required due to hardware limitation | |
785 | * such as operation crossing device boundaries in a RAID system. | |
786 | */ | |
787 | TRACE_EVENT(block_split, | |
788 | ||
789 | TP_PROTO(struct request_queue *q, struct bio *bio, | |
790 | unsigned int new_sector), | |
791 | ||
792 | TP_ARGS(q, bio, new_sector), | |
793 | ||
794 | TP_STRUCT__entry( | |
795 | __field( dev_t, dev ) | |
796 | __field( sector_t, sector ) | |
797 | __field( sector_t, new_sector ) | |
798 | __field( unsigned int, rwbs ) | |
64c796d8 | 799 | __array_text( char, comm, TASK_COMM_LEN ) |
f62b389e MD |
800 | ), |
801 | ||
802 | TP_fast_assign( | |
54c4c2e3 MD |
803 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
804 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
805 | tp_assign(sector, bio->bi_iter.bi_sector) | |
806 | tp_assign(new_sector, new_sector) | |
807 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size) | |
808 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) | |
809 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
f62b389e MD |
810 | tp_assign(dev, bio->bi_bdev->bd_dev) |
811 | tp_assign(sector, bio->bi_sector) | |
812 | tp_assign(new_sector, new_sector) | |
08fa6ec9 | 813 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) |
f62b389e | 814 | tp_memcpy(comm, current->comm, TASK_COMM_LEN) |
54c4c2e3 | 815 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
f62b389e MD |
816 | ), |
817 | ||
818 | TP_printk("%d,%d %s %llu / %llu [%s]", | |
819 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
820 | __print_rwbs_flags(__entry->rwbs), | |
821 | (unsigned long long)__entry->sector, | |
822 | (unsigned long long)__entry->new_sector, | |
823 | __entry->comm) | |
824 | ) | |
825 | ||
826 | /** | |
827 | * block_bio_remap - map request for a logical device to the raw device | |
828 | * @q: queue holding the operation | |
829 | * @bio: revised operation | |
830 | * @dev: device for the operation | |
831 | * @from: original sector for the operation | |
832 | * | |
833 | * An operation for a logical device has been mapped to the | |
834 | * raw block device. | |
835 | */ | |
7c68b363 | 836 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38)) |
f62b389e | 837 | TRACE_EVENT(block_bio_remap, |
7c68b363 AG |
838 | #else |
839 | TRACE_EVENT(block_remap, | |
840 | #endif | |
f62b389e MD |
841 | |
842 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, | |
843 | sector_t from), | |
844 | ||
845 | TP_ARGS(q, bio, dev, from), | |
846 | ||
847 | TP_STRUCT__entry( | |
848 | __field( dev_t, dev ) | |
849 | __field( sector_t, sector ) | |
850 | __field( unsigned int, nr_sector ) | |
851 | __field( dev_t, old_dev ) | |
852 | __field( sector_t, old_sector ) | |
853 | __field( unsigned int, rwbs ) | |
854 | ), | |
855 | ||
856 | TP_fast_assign( | |
54c4c2e3 MD |
857 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
858 | tp_assign(dev, bio->bi_bdev->bd_dev) | |
859 | tp_assign(sector, bio->bi_iter.bi_sector) | |
860 | tp_assign(nr_sector, bio_sectors(bio)) | |
861 | tp_assign(old_dev, dev) | |
862 | tp_assign(old_sector, from) | |
863 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_iter.bi_size) | |
864 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ | |
f62b389e MD |
865 | tp_assign(dev, bio->bi_bdev->bd_dev) |
866 | tp_assign(sector, bio->bi_sector) | |
867 | tp_assign(nr_sector, bio->bi_size >> 9) | |
868 | tp_assign(old_dev, dev) | |
869 | tp_assign(old_sector, from) | |
870 | blk_fill_rwbs(rwbs, bio->bi_rw, bio->bi_size) | |
54c4c2e3 | 871 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) */ |
f62b389e MD |
872 | ), |
873 | ||
874 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
875 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
876 | __print_rwbs_flags(__entry->rwbs), | |
877 | (unsigned long long)__entry->sector, | |
878 | __entry->nr_sector, | |
879 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
880 | (unsigned long long)__entry->old_sector) | |
881 | ) | |
882 | ||
7c68b363 | 883 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)) |
f62b389e MD |
884 | /** |
885 | * block_rq_remap - map request for a block operation request | |
886 | * @q: queue holding the operation | |
887 | * @rq: block IO operation request | |
888 | * @dev: device for the operation | |
889 | * @from: original sector for the operation | |
890 | * | |
891 | * The block operation request @rq in @q has been remapped. The block | |
892 | * operation request @rq holds the current information and @from hold | |
893 | * the original sector. | |
894 | */ | |
895 | TRACE_EVENT(block_rq_remap, | |
896 | ||
897 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, | |
898 | sector_t from), | |
899 | ||
900 | TP_ARGS(q, rq, dev, from), | |
901 | ||
902 | TP_STRUCT__entry( | |
903 | __field( dev_t, dev ) | |
904 | __field( sector_t, sector ) | |
905 | __field( unsigned int, nr_sector ) | |
906 | __field( dev_t, old_dev ) | |
907 | __field( sector_t, old_sector ) | |
908 | __field( unsigned int, rwbs ) | |
909 | ), | |
910 | ||
911 | TP_fast_assign( | |
912 | tp_assign(dev, disk_devt(rq->rq_disk)) | |
913 | tp_assign(sector, blk_rq_pos(rq)) | |
914 | tp_assign(nr_sector, blk_rq_sectors(rq)) | |
915 | tp_assign(old_dev, dev) | |
916 | tp_assign(old_sector, from) | |
917 | blk_fill_rwbs(rwbs, rq->cmd_flags, blk_rq_bytes(rq)) | |
918 | ), | |
919 | ||
920 | TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu", | |
921 | MAJOR(__entry->dev), MINOR(__entry->dev), | |
922 | __print_rwbs_flags(__entry->rwbs), | |
923 | (unsigned long long)__entry->sector, | |
924 | __entry->nr_sector, | |
925 | MAJOR(__entry->old_dev), MINOR(__entry->old_dev), | |
926 | (unsigned long long)__entry->old_sector) | |
927 | ) | |
7c68b363 | 928 | #endif |
f62b389e MD |
929 | |
930 | #undef __print_rwbs_flags | |
931 | #undef blk_fill_rwbs | |
932 | ||
933 | #endif /* _TRACE_BLOCK_H */ | |
934 | ||
935 | /* This part must be outside protection */ | |
5b88d86e | 936 | #include "../../../probes/define_trace.h" |
f62b389e | 937 |