include/trace/events/block.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM block
   4
   5 #if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_BLOCK_H
   7
   8 #include <linux/blktrace_api.h>
   9 #include <linux/blkdev.h>
  10 #include <linux/buffer_head.h>
  11 #include <linux/tracepoint.h>
  12
  13 #define RWBS_LEN        8
  14
  15 DECLARE_EVENT_CLASS(block_buffer,
  16
  17         TP_PROTO(struct buffer_head *bh),
  18
  19         TP_ARGS(bh),
  20
  21         TP_STRUCT__entry (
  22                 __field(  dev_t,        dev                     )
  23                 __field(  sector_t,     sector                  )
  24                 __field(  size_t,       size                    )
  25         ),
  26
  27         TP_fast_assign(
  28                 __entry->dev            = bh->b_bdev->bd_dev;
  29                 __entry->sector         = bh->b_blocknr;
  30                 __entry->size           = bh->b_size;
  31         ),
  32
  33         TP_printk("%d,%d sector=%llu size=%zu",
  34                 MAJOR(__entry->dev), MINOR(__entry->dev),
  35                 (unsigned long long)__entry->sector, __entry->size
  36         )
  37 );
  38
  39 /**
  40  * block_touch_buffer - mark a buffer accessed
  41  * @bh: buffer_head being touched
  42  *
  43  * Called from touch_buffer().
  44  */
  45 DEFINE_EVENT(block_buffer, block_touch_buffer,
  46
  47         TP_PROTO(struct buffer_head *bh),
  48
  49         TP_ARGS(bh)
  50 );
  51
  52 /**
  53  * block_dirty_buffer - mark a buffer dirty
  54  * @bh: buffer_head being dirtied
  55  *
  56  * Called from mark_buffer_dirty().
  57  */
  58 DEFINE_EVENT(block_buffer, block_dirty_buffer,
  59
  60         TP_PROTO(struct buffer_head *bh),
  61
  62         TP_ARGS(bh)
  63 );
  64
  65 /**
  66  * block_rq_requeue - place block IO request back on a queue
  67  * @rq: block IO operation request
  68  *
  69  * The block operation request @rq is being placed back into queue
  70  * @q.  For some reason the request was not completed and needs to be
  71  * put back in the queue.
  72  */
  73 TRACE_EVENT(block_rq_requeue,
  74
  75         TP_PROTO(struct request *rq),
  76
  77         TP_ARGS(rq),
  78
  79         TP_STRUCT__entry(
  80                 __field(  dev_t,        dev                     )
  81                 __field(  sector_t,     sector                  )
  82                 __field(  unsigned int, nr_sector               )
  83                 __array(  char,         rwbs,   RWBS_LEN        )
  84                 __dynamic_array( char,  cmd,    1               )
  85         ),
  86
  87         TP_fast_assign(
  88                 __entry->dev       = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
  89                 __entry->sector    = blk_rq_trace_sector(rq);
  90                 __entry->nr_sector = blk_rq_trace_nr_sectors(rq);
  91
  92                 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
  93                 __get_str(cmd)[0] = '\0';
  94         ),
  95
  96         TP_printk("%d,%d %s (%s) %llu + %u [%d]",
  97                   MAJOR(__entry->dev), MINOR(__entry->dev),
  98                   __entry->rwbs, __get_str(cmd),
  99                   (unsigned long long)__entry->sector,
 100                   __entry->nr_sector, 0)
 101 );
 102
 103 /**
 104  * block_rq_complete - block IO operation completed by device driver
 105  * @rq: block operations request
 106  * @error: status code
 107  * @nr_bytes: number of completed bytes
 108  *
 109  * The block_rq_complete tracepoint event indicates that some portion
 110  * of operation request has been completed by the device driver.  If
 111  * the @rq->bio is %NULL, then there is absolutely no additional work to
 112  * do for the request. If @rq->bio is non-NULL then there is
 113  * additional work required to complete the request.
 114  */
 115 TRACE_EVENT(block_rq_complete,
 116
 117         TP_PROTO(struct request *rq, int error, unsigned int nr_bytes),
 118
 119         TP_ARGS(rq, error, nr_bytes),
 120
 121         TP_STRUCT__entry(
 122                 __field(  dev_t,        dev                     )
 123                 __field(  sector_t,     sector                  )
 124                 __field(  unsigned int, nr_sector               )
 125                 __field(  int,          error                   )
 126                 __array(  char,         rwbs,   RWBS_LEN        )
 127                 __dynamic_array( char,  cmd,    1               )
 128         ),
 129
 130         TP_fast_assign(
 131                 __entry->dev       = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
 132                 __entry->sector    = blk_rq_pos(rq);
 133                 __entry->nr_sector = nr_bytes >> 9;
 134                 __entry->error     = error;
 135
 136                 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, nr_bytes);
 137                 __get_str(cmd)[0] = '\0';
 138         ),
 139
 140         TP_printk("%d,%d %s (%s) %llu + %u [%d]",
 141                   MAJOR(__entry->dev), MINOR(__entry->dev),
 142                   __entry->rwbs, __get_str(cmd),
 143                   (unsigned long long)__entry->sector,
 144                   __entry->nr_sector, __entry->error)
 145 );
 146
 147 DECLARE_EVENT_CLASS(block_rq,
 148
 149         TP_PROTO(struct request *rq),
 150
 151         TP_ARGS(rq),
 152
 153         TP_STRUCT__entry(
 154                 __field(  dev_t,        dev                     )
 155                 __field(  sector_t,     sector                  )
 156                 __field(  unsigned int, nr_sector               )
 157                 __field(  unsigned int, bytes                   )
 158                 __array(  char,         rwbs,   RWBS_LEN        )
 159                 __array(  char,         comm,   TASK_COMM_LEN   )
 160                 __dynamic_array( char,  cmd,    1               )
 161         ),
 162
 163         TP_fast_assign(
 164                 __entry->dev       = rq->rq_disk ? disk_devt(rq->rq_disk) : 0;
 165                 __entry->sector    = blk_rq_trace_sector(rq);
 166                 __entry->nr_sector = blk_rq_trace_nr_sectors(rq);
 167                 __entry->bytes     = blk_rq_bytes(rq);
 168
 169                 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
 170                 __get_str(cmd)[0] = '\0';
 171                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 172         ),
 173
 174         TP_printk("%d,%d %s %u (%s) %llu + %u [%s]",
 175                   MAJOR(__entry->dev), MINOR(__entry->dev),
 176                   __entry->rwbs, __entry->bytes, __get_str(cmd),
 177                   (unsigned long long)__entry->sector,
 178                   __entry->nr_sector, __entry->comm)
 179 );
 180
 181 /**
 182  * block_rq_insert - insert block operation request into queue
 183  * @rq: block IO operation request
 184  *
 185  * Called immediately before block operation request @rq is inserted
 186  * into queue @q.  The fields in the operation request @rq struct can
 187  * be examined to determine which device and sectors the pending
 188  * operation would access.
 189  */
 190 DEFINE_EVENT(block_rq, block_rq_insert,
 191
 192         TP_PROTO(struct request *rq),
 193
 194         TP_ARGS(rq)
 195 );
 196
 197 /**
 198  * block_rq_issue - issue pending block IO request operation to device driver
 199  * @rq: block IO operation operation request
 200  *
 201  * Called when block operation request @rq from queue @q is sent to a
 202  * device driver for processing.
 203  */
 204 DEFINE_EVENT(block_rq, block_rq_issue,
 205
 206         TP_PROTO(struct request *rq),
 207
 208         TP_ARGS(rq)
 209 );
 210
 211 /**
 212  * block_rq_merge - merge request with another one in the elevator
 213  * @rq: block IO operation operation request
 214  *
 215  * Called when block operation request @rq from queue @q is merged to another
 216  * request queued in the elevator.
 217  */
 218 DEFINE_EVENT(block_rq, block_rq_merge,
 219
 220         TP_PROTO(struct request *rq),
 221
 222         TP_ARGS(rq)
 223 );
 224
 225 /**
 226  * block_bio_bounce - used bounce buffer when processing block operation
 227  * @q: queue holding the block operation
 228  * @bio: block operation
 229  *
 230  * A bounce buffer was used to handle the block operation @bio in @q.
 231  * This occurs when hardware limitations prevent a direct transfer of
 232  * data between the @bio data memory area and the IO device.  Use of a
 233  * bounce buffer requires extra copying of data and decreases
 234  * performance.
 235  */
 236 TRACE_EVENT(block_bio_bounce,
 237
 238         TP_PROTO(struct request_queue *q, struct bio *bio),
 239
 240         TP_ARGS(q, bio),
 241
 242         TP_STRUCT__entry(
 243                 __field( dev_t,         dev                     )
 244                 __field( sector_t,      sector                  )
 245                 __field( unsigned int,  nr_sector               )
 246                 __array( char,          rwbs,   RWBS_LEN        )
 247                 __array( char,          comm,   TASK_COMM_LEN   )
 248         ),
 249
 250         TP_fast_assign(
 251                 __entry->dev            = bio_dev(bio);
 252                 __entry->sector         = bio->bi_iter.bi_sector;
 253                 __entry->nr_sector      = bio_sectors(bio);
 254                 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
 255                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 256         ),
 257
 258         TP_printk("%d,%d %s %llu + %u [%s]",
 259                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 260                   (unsigned long long)__entry->sector,
 261                   __entry->nr_sector, __entry->comm)
 262 );
 263
 264 /**
 265  * block_bio_complete - completed all work on the block operation
 266  * @q: queue holding the block operation
 267  * @bio: block operation completed
 268  *
 269  * This tracepoint indicates there is no further work to do on this
 270  * block IO operation @bio.
 271  */
 272 TRACE_EVENT(block_bio_complete,
 273
 274         TP_PROTO(struct request_queue *q, struct bio *bio),
 275
 276         TP_ARGS(q, bio),
 277
 278         TP_STRUCT__entry(
 279                 __field( dev_t,         dev             )
 280                 __field( sector_t,      sector          )
 281                 __field( unsigned,      nr_sector       )
 282                 __field( int,           error           )
 283                 __array( char,          rwbs,   RWBS_LEN)
 284         ),
 285
 286         TP_fast_assign(
 287                 __entry->dev            = bio_dev(bio);
 288                 __entry->sector         = bio->bi_iter.bi_sector;
 289                 __entry->nr_sector      = bio_sectors(bio);
 290                 __entry->error          = blk_status_to_errno(bio->bi_status);
 291                 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
 292         ),
 293
 294         TP_printk("%d,%d %s %llu + %u [%d]",
 295                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 296                   (unsigned long long)__entry->sector,
 297                   __entry->nr_sector, __entry->error)
 298 );
 299
 300 DECLARE_EVENT_CLASS(block_bio_merge,
 301
 302         TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
 303
 304         TP_ARGS(q, rq, bio),
 305
 306         TP_STRUCT__entry(
 307                 __field( dev_t,         dev                     )
 308                 __field( sector_t,      sector                  )
 309                 __field( unsigned int,  nr_sector               )
 310                 __array( char,          rwbs,   RWBS_LEN        )
 311                 __array( char,          comm,   TASK_COMM_LEN   )
 312         ),
 313
 314         TP_fast_assign(
 315                 __entry->dev            = bio_dev(bio);
 316                 __entry->sector         = bio->bi_iter.bi_sector;
 317                 __entry->nr_sector      = bio_sectors(bio);
 318                 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
 319                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 320         ),
 321
 322         TP_printk("%d,%d %s %llu + %u [%s]",
 323                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 324                   (unsigned long long)__entry->sector,
 325                   __entry->nr_sector, __entry->comm)
 326 );
 327
 328 /**
 329  * block_bio_backmerge - merging block operation to the end of an existing operation
 330  * @q: queue holding operation
 331  * @rq: request bio is being merged into
 332  * @bio: new block operation to merge
 333  *
 334  * Merging block request @bio to the end of an existing block request
 335  * in queue @q.
 336  */
 337 DEFINE_EVENT(block_bio_merge, block_bio_backmerge,
 338
 339         TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
 340
 341         TP_ARGS(q, rq, bio)
 342 );
 343
 344 /**
 345  * block_bio_frontmerge - merging block operation to the beginning of an existing operation
 346  * @q: queue holding operation
 347  * @rq: request bio is being merged into
 348  * @bio: new block operation to merge
 349  *
 350  * Merging block IO operation @bio to the beginning of an existing block
 351  * operation in queue @q.
 352  */
 353 DEFINE_EVENT(block_bio_merge, block_bio_frontmerge,
 354
 355         TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio),
 356
 357         TP_ARGS(q, rq, bio)
 358 );
 359
 360 /**
 361  * block_bio_queue - putting new block IO operation in queue
 362  * @q: queue holding operation
 363  * @bio: new block operation
 364  *
 365  * About to place the block IO operation @bio into queue @q.
 366  */
 367 TRACE_EVENT(block_bio_queue,
 368
 369         TP_PROTO(struct request_queue *q, struct bio *bio),
 370
 371         TP_ARGS(q, bio),
 372
 373         TP_STRUCT__entry(
 374                 __field( dev_t,         dev                     )
 375                 __field( sector_t,      sector                  )
 376                 __field( unsigned int,  nr_sector               )
 377                 __array( char,          rwbs,   RWBS_LEN        )
 378                 __array( char,          comm,   TASK_COMM_LEN   )
 379         ),
 380
 381         TP_fast_assign(
 382                 __entry->dev            = bio_dev(bio);
 383                 __entry->sector         = bio->bi_iter.bi_sector;
 384                 __entry->nr_sector      = bio_sectors(bio);
 385                 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
 386                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 387         ),
 388
 389         TP_printk("%d,%d %s %llu + %u [%s]",
 390                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 391                   (unsigned long long)__entry->sector,
 392                   __entry->nr_sector, __entry->comm)
 393 );
 394
 395 DECLARE_EVENT_CLASS(block_get_rq,
 396
 397         TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
 398
 399         TP_ARGS(q, bio, rw),
 400
 401         TP_STRUCT__entry(
 402                 __field( dev_t,         dev                     )
 403                 __field( sector_t,      sector                  )
 404                 __field( unsigned int,  nr_sector               )
 405                 __array( char,          rwbs,   RWBS_LEN        )
 406                 __array( char,          comm,   TASK_COMM_LEN   )
 407         ),
 408
 409         TP_fast_assign(
 410                 __entry->dev            = bio ? bio_dev(bio) : 0;
 411                 __entry->sector         = bio ? bio->bi_iter.bi_sector : 0;
 412                 __entry->nr_sector      = bio ? bio_sectors(bio) : 0;
 413                 blk_fill_rwbs(__entry->rwbs,
 414                               bio ? bio->bi_opf : 0, __entry->nr_sector);
 415                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 416         ),
 417
 418         TP_printk("%d,%d %s %llu + %u [%s]",
 419                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 420                   (unsigned long long)__entry->sector,
 421                   __entry->nr_sector, __entry->comm)
 422 );
 423
 424 /**
 425  * block_getrq - get a free request entry in queue for block IO operations
 426  * @q: queue for operations
 427  * @bio: pending block IO operation (can be %NULL)
 428  * @rw: low bit indicates a read (%0) or a write (%1)
 429  *
 430  * A request struct for queue @q has been allocated to handle the
 431  * block IO operation @bio.
 432  */
 433 DEFINE_EVENT(block_get_rq, block_getrq,
 434
 435         TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
 436
 437         TP_ARGS(q, bio, rw)
 438 );
 439
 440 /**
 441  * block_sleeprq - waiting to get a free request entry in queue for block IO operation
 442  * @q: queue for operation
 443  * @bio: pending block IO operation (can be %NULL)
 444  * @rw: low bit indicates a read (%0) or a write (%1)
 445  *
 446  * In the case where a request struct cannot be provided for queue @q
 447  * the process needs to wait for an request struct to become
 448  * available.  This tracepoint event is generated each time the
 449  * process goes to sleep waiting for request struct become available.
 450  */
 451 DEFINE_EVENT(block_get_rq, block_sleeprq,
 452
 453         TP_PROTO(struct request_queue *q, struct bio *bio, int rw),
 454
 455         TP_ARGS(q, bio, rw)
 456 );
 457
 458 /**
 459  * block_plug - keep operations requests in request queue
 460  * @q: request queue to plug
 461  *
 462  * Plug the request queue @q.  Do not allow block operation requests
 463  * to be sent to the device driver. Instead, accumulate requests in
 464  * the queue to improve throughput performance of the block device.
 465  */
 466 TRACE_EVENT(block_plug,
 467
 468         TP_PROTO(struct request_queue *q),
 469
 470         TP_ARGS(q),
 471
 472         TP_STRUCT__entry(
 473                 __array( char,          comm,   TASK_COMM_LEN   )
 474         ),
 475
 476         TP_fast_assign(
 477                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 478         ),
 479
 480         TP_printk("[%s]", __entry->comm)
 481 );
 482
 483 DECLARE_EVENT_CLASS(block_unplug,
 484
 485         TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
 486
 487         TP_ARGS(q, depth, explicit),
 488
 489         TP_STRUCT__entry(
 490                 __field( int,           nr_rq                   )
 491                 __array( char,          comm,   TASK_COMM_LEN   )
 492         ),
 493
 494         TP_fast_assign(
 495                 __entry->nr_rq = depth;
 496                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 497         ),
 498
 499         TP_printk("[%s] %d", __entry->comm, __entry->nr_rq)
 500 );
 501
 502 /**
 503  * block_unplug - release of operations requests in request queue
 504  * @q: request queue to unplug
 505  * @depth: number of requests just added to the queue
 506  * @explicit: whether this was an explicit unplug, or one from schedule()
 507  *
 508  * Unplug request queue @q because device driver is scheduled to work
 509  * on elements in the request queue.
 510  */
 511 DEFINE_EVENT(block_unplug, block_unplug,
 512
 513         TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit),
 514
 515         TP_ARGS(q, depth, explicit)
 516 );
 517
 518 /**
 519  * block_split - split a single bio struct into two bio structs
 520  * @q: queue containing the bio
 521  * @bio: block operation being split
 522  * @new_sector: The starting sector for the new bio
 523  *
 524  * The bio request @bio in request queue @q needs to be split into two
 525  * bio requests. The newly created @bio request starts at
 526  * @new_sector. This split may be required due to hardware limitation
 527  * such as operation crossing device boundaries in a RAID system.
 528  */
 529 TRACE_EVENT(block_split,
 530
 531         TP_PROTO(struct request_queue *q, struct bio *bio,
 532                  unsigned int new_sector),
 533
 534         TP_ARGS(q, bio, new_sector),
 535
 536         TP_STRUCT__entry(
 537                 __field( dev_t,         dev                             )
 538                 __field( sector_t,      sector                          )
 539                 __field( sector_t,      new_sector                      )
 540                 __array( char,          rwbs,           RWBS_LEN        )
 541                 __array( char,          comm,           TASK_COMM_LEN   )
 542         ),
 543
 544         TP_fast_assign(
 545                 __entry->dev            = bio_dev(bio);
 546                 __entry->sector         = bio->bi_iter.bi_sector;
 547                 __entry->new_sector     = new_sector;
 548                 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
 549                 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
 550         ),
 551
 552         TP_printk("%d,%d %s %llu / %llu [%s]",
 553                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 554                   (unsigned long long)__entry->sector,
 555                   (unsigned long long)__entry->new_sector,
 556                   __entry->comm)
 557 );
 558
 559 /**
 560  * block_bio_remap - map request for a logical device to the raw device
 561  * @q: queue holding the operation
 562  * @bio: revised operation
 563  * @dev: device for the operation
 564  * @from: original sector for the operation
 565  *
 566  * An operation for a logical device has been mapped to the
 567  * raw block device.
 568  */
 569 TRACE_EVENT(block_bio_remap,
 570
 571         TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
 572                  sector_t from),
 573
 574         TP_ARGS(q, bio, dev, from),
 575
 576         TP_STRUCT__entry(
 577                 __field( dev_t,         dev             )
 578                 __field( sector_t,      sector          )
 579                 __field( unsigned int,  nr_sector       )
 580                 __field( dev_t,         old_dev         )
 581                 __field( sector_t,      old_sector      )
 582                 __array( char,          rwbs,   RWBS_LEN)
 583         ),
 584
 585         TP_fast_assign(
 586                 __entry->dev            = bio_dev(bio);
 587                 __entry->sector         = bio->bi_iter.bi_sector;
 588                 __entry->nr_sector      = bio_sectors(bio);
 589                 __entry->old_dev        = dev;
 590                 __entry->old_sector     = from;
 591                 blk_fill_rwbs(__entry->rwbs, bio->bi_opf, bio->bi_iter.bi_size);
 592         ),
 593
 594         TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu",
 595                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 596                   (unsigned long long)__entry->sector,
 597                   __entry->nr_sector,
 598                   MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
 599                   (unsigned long long)__entry->old_sector)
 600 );
 601
 602 /**
 603  * block_rq_remap - map request for a block operation request
 604  * @rq: block IO operation request
 605  * @dev: device for the operation
 606  * @from: original sector for the operation
 607  *
 608  * The block operation request @rq in @q has been remapped.  The block
 609  * operation request @rq holds the current information and @from hold
 610  * the original sector.
 611  */
 612 TRACE_EVENT(block_rq_remap,
 613
 614         TP_PROTO(struct request *rq, dev_t dev, sector_t from),
 615
 616         TP_ARGS(rq, dev, from),
 617
 618         TP_STRUCT__entry(
 619                 __field( dev_t,         dev             )
 620                 __field( sector_t,      sector          )
 621                 __field( unsigned int,  nr_sector       )
 622                 __field( dev_t,         old_dev         )
 623                 __field( sector_t,      old_sector      )
 624                 __field( unsigned int,  nr_bios         )
 625                 __array( char,          rwbs,   RWBS_LEN)
 626         ),
 627
 628         TP_fast_assign(
 629                 __entry->dev            = disk_devt(rq->rq_disk);
 630                 __entry->sector         = blk_rq_pos(rq);
 631                 __entry->nr_sector      = blk_rq_sectors(rq);
 632                 __entry->old_dev        = dev;
 633                 __entry->old_sector     = from;
 634                 __entry->nr_bios        = blk_rq_count_bios(rq);
 635                 blk_fill_rwbs(__entry->rwbs, rq->cmd_flags, blk_rq_bytes(rq));
 636         ),
 637
 638         TP_printk("%d,%d %s %llu + %u <- (%d,%d) %llu %u",
 639                   MAJOR(__entry->dev), MINOR(__entry->dev), __entry->rwbs,
 640                   (unsigned long long)__entry->sector,
 641                   __entry->nr_sector,
 642                   MAJOR(__entry->old_dev), MINOR(__entry->old_dev),
 643                   (unsigned long long)__entry->old_sector, __entry->nr_bios)
 644 );
 645
 646 #endif /* _TRACE_BLOCK_H */
 647
 648 /* This part must be outside protection */
 649 #include <trace/define_trace.h>
 650