| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | #undef TRACE_SYSTEM |
| 3 | #define TRACE_SYSTEM block |
| 4 | |
| 5 | #if !defined(LTTNG_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ) |
| 6 | #define LTTNG_TRACE_BLOCK_H |
| 7 | |
| 8 | #include <probes/lttng-tracepoint-event.h> |
| 9 | #include <linux/blktrace_api.h> |
| 10 | #include <linux/blkdev.h> |
| 11 | #include <linux/trace_seq.h> |
| 12 | |
| 13 | #include <scsi/scsi_request.h> |
| 14 | |
| 15 | #ifndef _TRACE_BLOCK_DEF_ |
| 16 | #define _TRACE_BLOCK_DEF_ |
| 17 | |
| 18 | enum { |
| 19 | RWBS_FLAG_WRITE = (1 << 0), |
| 20 | RWBS_FLAG_DISCARD = (1 << 1), |
| 21 | RWBS_FLAG_READ = (1 << 2), |
| 22 | RWBS_FLAG_RAHEAD = (1 << 3), |
| 23 | RWBS_FLAG_BARRIER = (1 << 4), |
| 24 | RWBS_FLAG_SYNC = (1 << 5), |
| 25 | RWBS_FLAG_META = (1 << 6), |
| 26 | RWBS_FLAG_SECURE = (1 << 7), |
| 27 | RWBS_FLAG_FLUSH = (1 << 8), |
| 28 | RWBS_FLAG_FUA = (1 << 9), |
| 29 | RWBS_FLAG_PREFLUSH = (1 << 10), |
| 30 | }; |
| 31 | |
| 32 | #endif /* _TRACE_BLOCK_DEF_ */ |
| 33 | |
| 34 | LTTNG_TRACEPOINT_ENUM(block_rq_type, |
| 35 | TP_ENUM_VALUES( |
| 36 | ctf_enum_value("RWBS_FLAG_WRITE", RWBS_FLAG_WRITE) |
| 37 | ctf_enum_value("RWBS_FLAG_DISCARD", RWBS_FLAG_DISCARD) |
| 38 | ctf_enum_value("RWBS_FLAG_READ", RWBS_FLAG_READ) |
| 39 | ctf_enum_value("RWBS_FLAG_RAHEAD", RWBS_FLAG_RAHEAD) |
| 40 | ctf_enum_value("RWBS_FLAG_BARRIER", RWBS_FLAG_BARRIER) |
| 41 | ctf_enum_value("RWBS_FLAG_SYNC", RWBS_FLAG_SYNC) |
| 42 | ctf_enum_value("RWBS_FLAG_META", RWBS_FLAG_META) |
| 43 | ctf_enum_value("RWBS_FLAG_SECURE", RWBS_FLAG_SECURE) |
| 44 | ctf_enum_value("RWBS_FLAG_FLUSH", RWBS_FLAG_FLUSH) |
| 45 | ctf_enum_value("RWBS_FLAG_FUA", RWBS_FLAG_FUA) |
| 46 | ctf_enum_value("RWBS_FLAG_PREFLUSH", RWBS_FLAG_PREFLUSH) |
| 47 | ) |
| 48 | ) |
| 49 | |
| 50 | #define lttng_req_op(rq) req_op(rq) |
| 51 | #define lttng_req_rw(rq) ((rq)->cmd_flags) |
| 52 | #define lttng_bio_op(bio) bio_op(bio) |
| 53 | #define lttng_bio_rw(bio) ((bio)->bi_opf) |
| 54 | |
| 55 | #define blk_rwbs_ctf_integer(type, rwbs, op, rw, bytes) \ |
| 56 | ctf_enum(block_rq_type, type, rwbs, \ |
| 57 | (((op) == REQ_OP_WRITE || (op) == REQ_OP_WRITE_SAME) ? RWBS_FLAG_WRITE : \ |
| 58 | ( (op) == REQ_OP_DISCARD ? RWBS_FLAG_DISCARD : \ |
| 59 | ( (op) == REQ_OP_SECURE_ERASE ? (RWBS_FLAG_DISCARD | RWBS_FLAG_SECURE) : \ |
| 60 | ( (op) == REQ_OP_FLUSH ? RWBS_FLAG_FLUSH : \ |
| 61 | ( (op) == REQ_OP_READ ? RWBS_FLAG_READ : \ |
| 62 | ( 0 )))))) \ |
| 63 | | ((rw) & REQ_RAHEAD ? RWBS_FLAG_RAHEAD : 0) \ |
| 64 | | ((rw) & REQ_SYNC ? RWBS_FLAG_SYNC : 0) \ |
| 65 | | ((rw) & REQ_META ? RWBS_FLAG_META : 0) \ |
| 66 | | ((rw) & REQ_PREFLUSH ? RWBS_FLAG_PREFLUSH : 0) \ |
| 67 | | ((rw) & REQ_FUA ? RWBS_FLAG_FUA : 0)) |
| 68 | |
| 69 | LTTNG_TRACEPOINT_EVENT_CLASS(block_buffer, |
| 70 | |
| 71 | TP_PROTO(struct buffer_head *bh), |
| 72 | |
| 73 | TP_ARGS(bh), |
| 74 | |
| 75 | TP_FIELDS ( |
| 76 | ctf_integer(dev_t, dev, bh->b_bdev->bd_dev) |
| 77 | ctf_integer(sector_t, sector, bh->b_blocknr) |
| 78 | ctf_integer(size_t, size, bh->b_size) |
| 79 | ) |
| 80 | ) |
| 81 | |
| 82 | /** |
| 83 | * block_touch_buffer - mark a buffer accessed |
| 84 | * @bh: buffer_head being touched |
| 85 | * |
| 86 | * Called from touch_buffer(). |
| 87 | */ |
| 88 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_buffer, block_touch_buffer, |
| 89 | |
| 90 | TP_PROTO(struct buffer_head *bh), |
| 91 | |
| 92 | TP_ARGS(bh) |
| 93 | ) |
| 94 | |
| 95 | /** |
| 96 | * block_dirty_buffer - mark a buffer dirty |
| 97 | * @bh: buffer_head being dirtied |
| 98 | * |
| 99 | * Called from mark_buffer_dirty(). |
| 100 | */ |
| 101 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_buffer, block_dirty_buffer, |
| 102 | |
| 103 | TP_PROTO(struct buffer_head *bh), |
| 104 | |
| 105 | TP_ARGS(bh) |
| 106 | ) |
| 107 | |
| 108 | /** |
| 109 | * block_rq_requeue - place block IO request back on a queue |
| 110 | * @q: queue holding operation |
| 111 | * @rq: block IO operation request |
| 112 | * |
| 113 | * The block operation request @rq is being placed back into queue |
| 114 | * @q. For some reason the request was not completed and needs to be |
| 115 | * put back in the queue. |
| 116 | */ |
| 117 | LTTNG_TRACEPOINT_EVENT(block_rq_requeue, |
| 118 | |
| 119 | TP_PROTO(struct request_queue *q, struct request *rq), |
| 120 | |
| 121 | TP_ARGS(q, rq), |
| 122 | |
| 123 | TP_FIELDS( |
| 124 | ctf_integer(dev_t, dev, |
| 125 | rq->rq_disk ? disk_devt(rq->rq_disk) : 0) |
| 126 | ctf_integer(sector_t, sector, blk_rq_trace_sector(rq)) |
| 127 | ctf_integer(unsigned int, nr_sector, blk_rq_trace_nr_sectors(rq)) |
| 128 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 129 | lttng_req_op(rq), lttng_req_rw(rq), blk_rq_bytes(rq)) |
| 130 | ) |
| 131 | ) |
| 132 | |
| 133 | /** |
| 134 | * block_rq_complete - block IO operation completed by device driver |
| 135 | * @q: queue containing the block operation request |
| 136 | * @rq: block operations request |
| 137 | * @nr_bytes: number of completed bytes |
| 138 | * |
| 139 | * The block_rq_complete tracepoint event indicates that some portion |
| 140 | * of operation request has been completed by the device driver. If |
| 141 | * the @rq->bio is %NULL, then there is absolutely no additional work to |
| 142 | * do for the request. If @rq->bio is non-NULL then there is |
| 143 | * additional work required to complete the request. |
| 144 | */ |
| 145 | LTTNG_TRACEPOINT_EVENT(block_rq_complete, |
| 146 | |
| 147 | TP_PROTO(struct request *rq, int error, unsigned int nr_bytes), |
| 148 | |
| 149 | TP_ARGS(rq, error, nr_bytes), |
| 150 | |
| 151 | TP_FIELDS( |
| 152 | ctf_integer(dev_t, dev, |
| 153 | rq->rq_disk ? disk_devt(rq->rq_disk) : 0) |
| 154 | ctf_integer(sector_t, sector, blk_rq_pos(rq)) |
| 155 | ctf_integer(unsigned int, nr_sector, nr_bytes >> 9) |
| 156 | ctf_integer(int, error, error) |
| 157 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 158 | lttng_req_op(rq), lttng_req_rw(rq), nr_bytes) |
| 159 | ) |
| 160 | ) |
| 161 | |
| 162 | LTTNG_TRACEPOINT_EVENT_CLASS(block_rq, |
| 163 | |
| 164 | TP_PROTO(struct request_queue *q, struct request *rq), |
| 165 | |
| 166 | TP_ARGS(q, rq), |
| 167 | |
| 168 | TP_FIELDS( |
| 169 | ctf_integer(dev_t, dev, |
| 170 | rq->rq_disk ? disk_devt(rq->rq_disk) : 0) |
| 171 | ctf_integer(sector_t, sector, blk_rq_trace_sector(rq)) |
| 172 | ctf_integer(unsigned int, nr_sector, blk_rq_trace_nr_sectors(rq)) |
| 173 | ctf_integer(unsigned int, bytes, blk_rq_bytes(rq)) |
| 174 | ctf_integer(pid_t, tid, current->pid) |
| 175 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 176 | lttng_req_op(rq), lttng_req_rw(rq), blk_rq_bytes(rq)) |
| 177 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 178 | ) |
| 179 | ) |
| 180 | |
| 181 | /** |
| 182 | * block_rq_insert - insert block operation request into queue |
| 183 | * @q: target queue |
| 184 | * @rq: block IO operation request |
| 185 | * |
| 186 | * Called immediately before block operation request @rq is inserted |
| 187 | * into queue @q. The fields in the operation request @rq struct can |
| 188 | * be examined to determine which device and sectors the pending |
| 189 | * operation would access. |
| 190 | */ |
| 191 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq, block_rq_insert, |
| 192 | |
| 193 | TP_PROTO(struct request_queue *q, struct request *rq), |
| 194 | |
| 195 | TP_ARGS(q, rq) |
| 196 | ) |
| 197 | |
| 198 | /** |
| 199 | * block_rq_issue - issue pending block IO request operation to device driver |
| 200 | * @q: queue holding operation |
| 201 | * @rq: block IO operation operation request |
| 202 | * |
| 203 | * Called when block operation request @rq from queue @q is sent to a |
| 204 | * device driver for processing. |
| 205 | */ |
| 206 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_rq, block_rq_issue, |
| 207 | |
| 208 | TP_PROTO(struct request_queue *q, struct request *rq), |
| 209 | |
| 210 | TP_ARGS(q, rq) |
| 211 | ) |
| 212 | |
| 213 | /** |
| 214 | * block_bio_bounce - used bounce buffer when processing block operation |
| 215 | * @q: queue holding the block operation |
| 216 | * @bio: block operation |
| 217 | * |
| 218 | * A bounce buffer was used to handle the block operation @bio in @q. |
| 219 | * This occurs when hardware limitations prevent a direct transfer of |
| 220 | * data between the @bio data memory area and the IO device. Use of a |
| 221 | * bounce buffer requires extra copying of data and decreases |
| 222 | * performance. |
| 223 | */ |
| 224 | LTTNG_TRACEPOINT_EVENT(block_bio_bounce, |
| 225 | |
| 226 | TP_PROTO(struct request_queue *q, struct bio *bio), |
| 227 | |
| 228 | TP_ARGS(q, bio), |
| 229 | |
| 230 | TP_FIELDS( |
| 231 | ctf_integer(dev_t, dev, bio_dev(bio)) |
| 232 | ctf_integer(sector_t, sector, bio->bi_iter.bi_sector) |
| 233 | ctf_integer(unsigned int, nr_sector, bio_sectors(bio)) |
| 234 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 235 | lttng_bio_op(bio), lttng_bio_rw(bio), |
| 236 | bio->bi_iter.bi_size) |
| 237 | ctf_integer(pid_t, tid, current->pid) |
| 238 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 239 | ) |
| 240 | ) |
| 241 | |
| 242 | /** |
| 243 | * block_bio_complete - completed all work on the block operation |
| 244 | * @q: queue holding the block operation |
| 245 | * @bio: block operation completed |
| 246 | * @error: io error value |
| 247 | * |
| 248 | * This tracepoint indicates there is no further work to do on this |
| 249 | * block IO operation @bio. |
| 250 | */ |
| 251 | LTTNG_TRACEPOINT_EVENT(block_bio_complete, |
| 252 | |
| 253 | TP_PROTO(struct request_queue *q, struct bio *bio, int error), |
| 254 | |
| 255 | TP_ARGS(q, bio, error), |
| 256 | |
| 257 | TP_FIELDS( |
| 258 | ctf_integer(dev_t, dev, bio_dev(bio)) |
| 259 | ctf_integer(sector_t, sector, bio->bi_iter.bi_sector) |
| 260 | ctf_integer(unsigned int, nr_sector, bio_sectors(bio)) |
| 261 | ctf_integer(int, error, error) |
| 262 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 263 | lttng_bio_op(bio), lttng_bio_rw(bio), |
| 264 | bio->bi_iter.bi_size) |
| 265 | ) |
| 266 | ) |
| 267 | |
| 268 | LTTNG_TRACEPOINT_EVENT_CLASS(block_bio_merge, |
| 269 | |
| 270 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
| 271 | |
| 272 | TP_ARGS(q, rq, bio), |
| 273 | |
| 274 | TP_FIELDS( |
| 275 | ctf_integer(dev_t, dev, bio_dev(bio)) |
| 276 | ctf_integer(sector_t, sector, bio->bi_iter.bi_sector) |
| 277 | ctf_integer(unsigned int, nr_sector, bio_sectors(bio)) |
| 278 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 279 | lttng_bio_op(bio), lttng_bio_rw(bio), |
| 280 | bio->bi_iter.bi_size) |
| 281 | ctf_integer(pid_t, tid, current->pid) |
| 282 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 283 | ) |
| 284 | ) |
| 285 | |
| 286 | /** |
| 287 | * block_bio_backmerge - merging block operation to the end of an existing operation |
| 288 | * @q: queue holding operation |
| 289 | * @bio: new block operation to merge |
| 290 | * |
| 291 | * Merging block request @bio to the end of an existing block request |
| 292 | * in queue @q. |
| 293 | */ |
| 294 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio_merge, block_bio_backmerge, |
| 295 | |
| 296 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
| 297 | |
| 298 | TP_ARGS(q, rq, bio) |
| 299 | ) |
| 300 | |
| 301 | /** |
| 302 | * block_bio_frontmerge - merging block operation to the beginning of an existing operation |
| 303 | * @q: queue holding operation |
| 304 | * @bio: new block operation to merge |
| 305 | * |
| 306 | * Merging block IO operation @bio to the beginning of an existing block |
| 307 | * operation in queue @q. |
| 308 | */ |
| 309 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_bio_merge, block_bio_frontmerge, |
| 310 | |
| 311 | TP_PROTO(struct request_queue *q, struct request *rq, struct bio *bio), |
| 312 | |
| 313 | TP_ARGS(q, rq, bio) |
| 314 | ) |
| 315 | |
| 316 | /** |
| 317 | * block_bio_queue - putting new block IO operation in queue |
| 318 | * @q: queue holding operation |
| 319 | * @bio: new block operation |
| 320 | * |
| 321 | * About to place the block IO operation @bio into queue @q. |
| 322 | */ |
| 323 | LTTNG_TRACEPOINT_EVENT(block_bio_queue, |
| 324 | |
| 325 | TP_PROTO(struct request_queue *q, struct bio *bio), |
| 326 | |
| 327 | TP_ARGS(q, bio), |
| 328 | |
| 329 | TP_FIELDS( |
| 330 | ctf_integer(dev_t, dev, bio_dev(bio)) |
| 331 | ctf_integer(sector_t, sector, bio->bi_iter.bi_sector) |
| 332 | ctf_integer(unsigned int, nr_sector, bio_sectors(bio)) |
| 333 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 334 | lttng_bio_op(bio), lttng_bio_rw(bio), |
| 335 | bio->bi_iter.bi_size) |
| 336 | ctf_integer(pid_t, tid, current->pid) |
| 337 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 338 | ) |
| 339 | ) |
| 340 | |
| 341 | LTTNG_TRACEPOINT_EVENT_CLASS(block_get_rq, |
| 342 | |
| 343 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), |
| 344 | |
| 345 | TP_ARGS(q, bio, rw), |
| 346 | |
| 347 | TP_FIELDS( |
| 348 | ctf_integer(dev_t, dev, bio ? bio_dev(bio) : 0) |
| 349 | ctf_integer(sector_t, sector, bio ? bio->bi_iter.bi_sector : 0) |
| 350 | ctf_integer(unsigned int, nr_sector, |
| 351 | bio ? bio_sectors(bio) : 0) |
| 352 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 353 | bio ? lttng_bio_op(bio) : 0, |
| 354 | bio ? lttng_bio_rw(bio) : 0, |
| 355 | bio ? bio->bi_iter.bi_size : 0) |
| 356 | ctf_integer(pid_t, tid, current->pid) |
| 357 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 358 | ) |
| 359 | ) |
| 360 | |
| 361 | /** |
| 362 | * block_getrq - get a free request entry in queue for block IO operations |
| 363 | * @q: queue for operations |
| 364 | * @bio: pending block IO operation (can be %NULL) |
| 365 | * @rw: low bit indicates a read (%0) or a write (%1) |
| 366 | * |
| 367 | * A request struct for queue @q has been allocated to handle the |
| 368 | * block IO operation @bio. |
| 369 | */ |
| 370 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_get_rq, block_getrq, |
| 371 | |
| 372 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), |
| 373 | |
| 374 | TP_ARGS(q, bio, rw) |
| 375 | ) |
| 376 | |
| 377 | /** |
| 378 | * block_sleeprq - waiting to get a free request entry in queue for block IO operation |
| 379 | * @q: queue for operation |
| 380 | * @bio: pending block IO operation (can be %NULL) |
| 381 | * @rw: low bit indicates a read (%0) or a write (%1) |
| 382 | * |
| 383 | * In the case where a request struct cannot be provided for queue @q |
| 384 | * the process needs to wait for an request struct to become |
| 385 | * available. This tracepoint event is generated each time the |
| 386 | * process goes to sleep waiting for request struct become available. |
| 387 | */ |
| 388 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_get_rq, block_sleeprq, |
| 389 | |
| 390 | TP_PROTO(struct request_queue *q, struct bio *bio, int rw), |
| 391 | |
| 392 | TP_ARGS(q, bio, rw) |
| 393 | ) |
| 394 | |
| 395 | /** |
| 396 | * block_plug - keep operations requests in request queue |
| 397 | * @q: request queue to plug |
| 398 | * |
| 399 | * Plug the request queue @q. Do not allow block operation requests |
| 400 | * to be sent to the device driver. Instead, accumulate requests in |
| 401 | * the queue to improve throughput performance of the block device. |
| 402 | */ |
| 403 | LTTNG_TRACEPOINT_EVENT(block_plug, |
| 404 | |
| 405 | TP_PROTO(struct request_queue *q), |
| 406 | |
| 407 | TP_ARGS(q), |
| 408 | |
| 409 | TP_FIELDS( |
| 410 | ctf_integer(pid_t, tid, current->pid) |
| 411 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 412 | ) |
| 413 | ) |
| 414 | |
| 415 | LTTNG_TRACEPOINT_EVENT_CLASS(block_unplug, |
| 416 | |
| 417 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
| 418 | |
| 419 | TP_ARGS(q, depth, explicit), |
| 420 | |
| 421 | TP_FIELDS( |
| 422 | ctf_integer(int, nr_rq, depth) |
| 423 | ctf_integer(pid_t, tid, current->pid) |
| 424 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 425 | ) |
| 426 | ) |
| 427 | |
| 428 | /** |
| 429 | * block_unplug - release of operations requests in request queue |
| 430 | * @q: request queue to unplug |
| 431 | * @depth: number of requests just added to the queue |
| 432 | * @explicit: whether this was an explicit unplug, or one from schedule() |
| 433 | * |
| 434 | * Unplug request queue @q because device driver is scheduled to work |
| 435 | * on elements in the request queue. |
| 436 | */ |
| 437 | LTTNG_TRACEPOINT_EVENT_INSTANCE(block_unplug, block_unplug, |
| 438 | |
| 439 | TP_PROTO(struct request_queue *q, unsigned int depth, bool explicit), |
| 440 | |
| 441 | TP_ARGS(q, depth, explicit) |
| 442 | ) |
| 443 | |
| 444 | /** |
| 445 | * block_split - split a single bio struct into two bio structs |
| 446 | * @q: queue containing the bio |
| 447 | * @bio: block operation being split |
| 448 | * @new_sector: The starting sector for the new bio |
| 449 | * |
| 450 | * The bio request @bio in request queue @q needs to be split into two |
| 451 | * bio requests. The newly created @bio request starts at |
| 452 | * @new_sector. This split may be required due to hardware limitation |
| 453 | * such as operation crossing device boundaries in a RAID system. |
| 454 | */ |
| 455 | LTTNG_TRACEPOINT_EVENT(block_split, |
| 456 | |
| 457 | TP_PROTO(struct request_queue *q, struct bio *bio, |
| 458 | unsigned int new_sector), |
| 459 | |
| 460 | TP_ARGS(q, bio, new_sector), |
| 461 | |
| 462 | TP_FIELDS( |
| 463 | ctf_integer(dev_t, dev, bio_dev(bio)) |
| 464 | ctf_integer(sector_t, sector, bio->bi_iter.bi_sector) |
| 465 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 466 | lttng_bio_op(bio), lttng_bio_rw(bio), |
| 467 | bio->bi_iter.bi_size) |
| 468 | ctf_integer(sector_t, new_sector, new_sector) |
| 469 | ctf_integer(pid_t, tid, current->pid) |
| 470 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) |
| 471 | ) |
| 472 | ) |
| 473 | |
| 474 | /** |
| 475 | * block_bio_remap - map request for a logical device to the raw device |
| 476 | * @q: queue holding the operation |
| 477 | * @bio: revised operation |
| 478 | * @dev: device for the operation |
| 479 | * @from: original sector for the operation |
| 480 | * |
| 481 | * An operation for a logical device has been mapped to the |
| 482 | * raw block device. |
| 483 | */ |
| 484 | LTTNG_TRACEPOINT_EVENT(block_bio_remap, |
| 485 | |
| 486 | TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev, |
| 487 | sector_t from), |
| 488 | |
| 489 | TP_ARGS(q, bio, dev, from), |
| 490 | |
| 491 | TP_FIELDS( |
| 492 | ctf_integer(dev_t, dev, bio_dev(bio)) |
| 493 | ctf_integer(sector_t, sector, bio->bi_iter.bi_sector) |
| 494 | ctf_integer(unsigned int, nr_sector, bio_sectors(bio)) |
| 495 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 496 | lttng_bio_op(bio), lttng_bio_rw(bio), |
| 497 | bio->bi_iter.bi_size) |
| 498 | ctf_integer(dev_t, old_dev, dev) |
| 499 | ctf_integer(sector_t, old_sector, from) |
| 500 | ) |
| 501 | ) |
| 502 | |
| 503 | /** |
| 504 | * block_rq_remap - map request for a block operation request |
| 505 | * @q: queue holding the operation |
| 506 | * @rq: block IO operation request |
| 507 | * @dev: device for the operation |
| 508 | * @from: original sector for the operation |
| 509 | * |
| 510 | * The block operation request @rq in @q has been remapped. The block |
| 511 | * operation request @rq holds the current information and @from hold |
| 512 | * the original sector. |
| 513 | */ |
| 514 | LTTNG_TRACEPOINT_EVENT(block_rq_remap, |
| 515 | |
| 516 | TP_PROTO(struct request_queue *q, struct request *rq, dev_t dev, |
| 517 | sector_t from), |
| 518 | |
| 519 | TP_ARGS(q, rq, dev, from), |
| 520 | |
| 521 | TP_FIELDS( |
| 522 | ctf_integer(dev_t, dev, disk_devt(rq->rq_disk)) |
| 523 | ctf_integer(sector_t, sector, blk_rq_pos(rq)) |
| 524 | ctf_integer(unsigned int, nr_sector, blk_rq_sectors(rq)) |
| 525 | ctf_integer(dev_t, old_dev, dev) |
| 526 | ctf_integer(sector_t, old_sector, from) |
| 527 | blk_rwbs_ctf_integer(unsigned int, rwbs, |
| 528 | lttng_req_op(rq), lttng_req_rw(rq), blk_rq_bytes(rq)) |
| 529 | ) |
| 530 | ) |
| 531 | |
| 532 | #undef __print_rwbs_flags |
| 533 | #undef blk_fill_rwbs |
| 534 | |
| 535 | #endif /* LTTNG_TRACE_BLOCK_H */ |
| 536 | |
| 537 | /* This part must be outside protection */ |
| 538 | #include <probes/define_trace.h> |