| 1 | /* |
| 2 | * rbd engine |
| 3 | * |
| 4 | * IO engine using Ceph's librbd to test RADOS Block Devices. |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <rbd/librbd.h> |
| 9 | |
| 10 | #include "../fio.h" |
| 11 | #include "../optgroup.h" |
| 12 | #ifdef CONFIG_RBD_BLKIN |
| 13 | #include <zipkin_c.h> |
| 14 | #endif |
| 15 | |
| 16 | #ifdef CONFIG_RBD_POLL |
| 17 | /* add for poll */ |
| 18 | #include <poll.h> |
| 19 | #include <sys/eventfd.h> |
| 20 | #endif |
| 21 | |
| 22 | struct fio_rbd_iou { |
| 23 | struct io_u *io_u; |
| 24 | rbd_completion_t completion; |
| 25 | int io_seen; |
| 26 | int io_complete; |
| 27 | #ifdef CONFIG_RBD_BLKIN |
| 28 | struct blkin_trace_info info; |
| 29 | #endif |
| 30 | }; |
| 31 | |
| 32 | struct rbd_data { |
| 33 | rados_t cluster; |
| 34 | rados_ioctx_t io_ctx; |
| 35 | rbd_image_t image; |
| 36 | struct io_u **aio_events; |
| 37 | struct io_u **sort_events; |
| 38 | int fd; /* add for poll */ |
| 39 | bool connected; |
| 40 | }; |
| 41 | |
| 42 | struct rbd_options { |
| 43 | void *pad; |
| 44 | char *cluster_name; |
| 45 | char *rbd_name; |
| 46 | char *pool_name; |
| 47 | char *client_name; |
| 48 | int busy_poll; |
| 49 | }; |
| 50 | |
| 51 | static struct fio_option options[] = { |
| 52 | { |
| 53 | .name = "clustername", |
| 54 | .lname = "ceph cluster name", |
| 55 | .type = FIO_OPT_STR_STORE, |
| 56 | .help = "Cluster name for ceph", |
| 57 | .off1 = offsetof(struct rbd_options, cluster_name), |
| 58 | .category = FIO_OPT_C_ENGINE, |
| 59 | .group = FIO_OPT_G_RBD, |
| 60 | }, |
| 61 | { |
| 62 | .name = "rbdname", |
| 63 | .lname = "rbd engine rbdname", |
| 64 | .type = FIO_OPT_STR_STORE, |
| 65 | .help = "RBD name for RBD engine", |
| 66 | .off1 = offsetof(struct rbd_options, rbd_name), |
| 67 | .category = FIO_OPT_C_ENGINE, |
| 68 | .group = FIO_OPT_G_RBD, |
| 69 | }, |
| 70 | { |
| 71 | .name = "pool", |
| 72 | .lname = "rbd engine pool", |
| 73 | .type = FIO_OPT_STR_STORE, |
| 74 | .help = "Name of the pool hosting the RBD for the RBD engine", |
| 75 | .off1 = offsetof(struct rbd_options, pool_name), |
| 76 | .category = FIO_OPT_C_ENGINE, |
| 77 | .group = FIO_OPT_G_RBD, |
| 78 | }, |
| 79 | { |
| 80 | .name = "clientname", |
| 81 | .lname = "rbd engine clientname", |
| 82 | .type = FIO_OPT_STR_STORE, |
| 83 | .help = "Name of the ceph client to access the RBD for the RBD engine", |
| 84 | .off1 = offsetof(struct rbd_options, client_name), |
| 85 | .category = FIO_OPT_C_ENGINE, |
| 86 | .group = FIO_OPT_G_RBD, |
| 87 | }, |
| 88 | { |
| 89 | .name = "busy_poll", |
| 90 | .lname = "Busy poll", |
| 91 | .type = FIO_OPT_BOOL, |
| 92 | .help = "Busy poll for completions instead of sleeping", |
| 93 | .off1 = offsetof(struct rbd_options, busy_poll), |
| 94 | .def = "0", |
| 95 | .category = FIO_OPT_C_ENGINE, |
| 96 | .group = FIO_OPT_G_RBD, |
| 97 | }, |
| 98 | { |
| 99 | .name = NULL, |
| 100 | }, |
| 101 | }; |
| 102 | |
| 103 | static int _fio_setup_rbd_data(struct thread_data *td, |
| 104 | struct rbd_data **rbd_data_ptr) |
| 105 | { |
| 106 | struct rbd_data *rbd; |
| 107 | |
| 108 | if (td->io_ops_data) |
| 109 | return 0; |
| 110 | |
| 111 | rbd = calloc(1, sizeof(struct rbd_data)); |
| 112 | if (!rbd) |
| 113 | goto failed; |
| 114 | |
| 115 | rbd->connected = false; |
| 116 | |
| 117 | /* add for poll, init fd: -1 */ |
| 118 | rbd->fd = -1; |
| 119 | |
| 120 | rbd->aio_events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
| 121 | if (!rbd->aio_events) |
| 122 | goto failed; |
| 123 | |
| 124 | rbd->sort_events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
| 125 | if (!rbd->sort_events) |
| 126 | goto failed; |
| 127 | |
| 128 | *rbd_data_ptr = rbd; |
| 129 | return 0; |
| 130 | |
| 131 | failed: |
| 132 | if (rbd) { |
| 133 | if (rbd->aio_events) |
| 134 | free(rbd->aio_events); |
| 135 | if (rbd->sort_events) |
| 136 | free(rbd->sort_events); |
| 137 | free(rbd); |
| 138 | } |
| 139 | return 1; |
| 140 | |
| 141 | } |
| 142 | |
| 143 | #ifdef CONFIG_RBD_POLL |
| 144 | static bool _fio_rbd_setup_poll(struct rbd_data *rbd) |
| 145 | { |
| 146 | int r; |
| 147 | |
| 148 | /* add for rbd poll */ |
| 149 | rbd->fd = eventfd(0, EFD_NONBLOCK); |
| 150 | if (rbd->fd < 0) { |
| 151 | log_err("eventfd failed.\n"); |
| 152 | return false; |
| 153 | } |
| 154 | |
| 155 | r = rbd_set_image_notification(rbd->image, rbd->fd, EVENT_TYPE_EVENTFD); |
| 156 | if (r < 0) { |
| 157 | log_err("rbd_set_image_notification failed.\n"); |
| 158 | close(rbd->fd); |
| 159 | rbd->fd = -1; |
| 160 | return false; |
| 161 | } |
| 162 | |
| 163 | return true; |
| 164 | } |
| 165 | #else |
| 166 | static bool _fio_rbd_setup_poll(struct rbd_data *rbd) |
| 167 | { |
| 168 | return true; |
| 169 | } |
| 170 | #endif |
| 171 | |
| 172 | static int _fio_rbd_connect(struct thread_data *td) |
| 173 | { |
| 174 | struct rbd_data *rbd = td->io_ops_data; |
| 175 | struct rbd_options *o = td->eo; |
| 176 | int r; |
| 177 | |
| 178 | if (o->cluster_name) { |
| 179 | char *client_name = NULL; |
| 180 | |
| 181 | /* |
| 182 | * If we specify cluser name, the rados_create2 |
| 183 | * will not assume 'client.'. name is considered |
| 184 | * as a full type.id namestr |
| 185 | */ |
| 186 | if (o->client_name) { |
| 187 | if (!index(o->client_name, '.')) { |
| 188 | client_name = calloc(1, strlen("client.") + |
| 189 | strlen(o->client_name) + 1); |
| 190 | strcat(client_name, "client."); |
| 191 | strcat(client_name, o->client_name); |
| 192 | } else { |
| 193 | client_name = o->client_name; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | r = rados_create2(&rbd->cluster, o->cluster_name, |
| 198 | client_name, 0); |
| 199 | |
| 200 | if (client_name && !index(o->client_name, '.')) |
| 201 | free(client_name); |
| 202 | } else |
| 203 | r = rados_create(&rbd->cluster, o->client_name); |
| 204 | |
| 205 | if (r < 0) { |
| 206 | log_err("rados_create failed.\n"); |
| 207 | goto failed_early; |
| 208 | } |
| 209 | |
| 210 | r = rados_conf_read_file(rbd->cluster, NULL); |
| 211 | if (r < 0) { |
| 212 | log_err("rados_conf_read_file failed.\n"); |
| 213 | goto failed_early; |
| 214 | } |
| 215 | |
| 216 | r = rados_connect(rbd->cluster); |
| 217 | if (r < 0) { |
| 218 | log_err("rados_connect failed.\n"); |
| 219 | goto failed_shutdown; |
| 220 | } |
| 221 | |
| 222 | r = rados_ioctx_create(rbd->cluster, o->pool_name, &rbd->io_ctx); |
| 223 | if (r < 0) { |
| 224 | log_err("rados_ioctx_create failed.\n"); |
| 225 | goto failed_shutdown; |
| 226 | } |
| 227 | |
| 228 | r = rbd_open(rbd->io_ctx, o->rbd_name, &rbd->image, NULL /*snap */ ); |
| 229 | if (r < 0) { |
| 230 | log_err("rbd_open failed.\n"); |
| 231 | goto failed_open; |
| 232 | } |
| 233 | |
| 234 | if (!_fio_rbd_setup_poll(rbd)) |
| 235 | goto failed_poll; |
| 236 | |
| 237 | return 0; |
| 238 | |
| 239 | failed_poll: |
| 240 | rbd_close(rbd->image); |
| 241 | rbd->image = NULL; |
| 242 | failed_open: |
| 243 | rados_ioctx_destroy(rbd->io_ctx); |
| 244 | rbd->io_ctx = NULL; |
| 245 | failed_shutdown: |
| 246 | rados_shutdown(rbd->cluster); |
| 247 | rbd->cluster = NULL; |
| 248 | failed_early: |
| 249 | return 1; |
| 250 | } |
| 251 | |
| 252 | static void _fio_rbd_disconnect(struct rbd_data *rbd) |
| 253 | { |
| 254 | if (!rbd) |
| 255 | return; |
| 256 | |
| 257 | /* close eventfd */ |
| 258 | if (rbd->fd != -1) { |
| 259 | close(rbd->fd); |
| 260 | rbd->fd = -1; |
| 261 | } |
| 262 | |
| 263 | /* shutdown everything */ |
| 264 | if (rbd->image) { |
| 265 | rbd_close(rbd->image); |
| 266 | rbd->image = NULL; |
| 267 | } |
| 268 | |
| 269 | if (rbd->io_ctx) { |
| 270 | rados_ioctx_destroy(rbd->io_ctx); |
| 271 | rbd->io_ctx = NULL; |
| 272 | } |
| 273 | |
| 274 | if (rbd->cluster) { |
| 275 | rados_shutdown(rbd->cluster); |
| 276 | rbd->cluster = NULL; |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | static void _fio_rbd_finish_aiocb(rbd_completion_t comp, void *data) |
| 281 | { |
| 282 | struct fio_rbd_iou *fri = data; |
| 283 | struct io_u *io_u = fri->io_u; |
| 284 | ssize_t ret; |
| 285 | |
| 286 | /* |
| 287 | * Looks like return value is 0 for success, or < 0 for |
| 288 | * a specific error. So we have to assume that it can't do |
| 289 | * partial completions. |
| 290 | */ |
| 291 | ret = rbd_aio_get_return_value(fri->completion); |
| 292 | if (ret < 0) { |
| 293 | io_u->error = -ret; |
| 294 | io_u->resid = io_u->xfer_buflen; |
| 295 | } else |
| 296 | io_u->error = 0; |
| 297 | |
| 298 | fri->io_complete = 1; |
| 299 | } |
| 300 | |
| 301 | static struct io_u *fio_rbd_event(struct thread_data *td, int event) |
| 302 | { |
| 303 | struct rbd_data *rbd = td->io_ops_data; |
| 304 | |
| 305 | return rbd->aio_events[event]; |
| 306 | } |
| 307 | |
| 308 | static inline int fri_check_complete(struct rbd_data *rbd, struct io_u *io_u, |
| 309 | unsigned int *events) |
| 310 | { |
| 311 | struct fio_rbd_iou *fri = io_u->engine_data; |
| 312 | |
| 313 | if (fri->io_complete) { |
| 314 | fri->io_seen = 1; |
| 315 | rbd->aio_events[*events] = io_u; |
| 316 | (*events)++; |
| 317 | |
| 318 | rbd_aio_release(fri->completion); |
| 319 | return 1; |
| 320 | } |
| 321 | |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | static inline int rbd_io_u_seen(struct io_u *io_u) |
| 326 | { |
| 327 | struct fio_rbd_iou *fri = io_u->engine_data; |
| 328 | |
| 329 | return fri->io_seen; |
| 330 | } |
| 331 | |
| 332 | static void rbd_io_u_wait_complete(struct io_u *io_u) |
| 333 | { |
| 334 | struct fio_rbd_iou *fri = io_u->engine_data; |
| 335 | |
| 336 | rbd_aio_wait_for_complete(fri->completion); |
| 337 | } |
| 338 | |
| 339 | static int rbd_io_u_cmp(const void *p1, const void *p2) |
| 340 | { |
| 341 | const struct io_u **a = (const struct io_u **) p1; |
| 342 | const struct io_u **b = (const struct io_u **) p2; |
| 343 | uint64_t at, bt; |
| 344 | |
| 345 | at = utime_since_now(&(*a)->start_time); |
| 346 | bt = utime_since_now(&(*b)->start_time); |
| 347 | |
| 348 | if (at < bt) |
| 349 | return -1; |
| 350 | else if (at == bt) |
| 351 | return 0; |
| 352 | else |
| 353 | return 1; |
| 354 | } |
| 355 | |
| 356 | static int rbd_iter_events(struct thread_data *td, unsigned int *events, |
| 357 | unsigned int min_evts, int wait) |
| 358 | { |
| 359 | struct rbd_data *rbd = td->io_ops_data; |
| 360 | unsigned int this_events = 0; |
| 361 | struct io_u *io_u; |
| 362 | int i, sidx = 0; |
| 363 | |
| 364 | #ifdef CONFIG_RBD_POLL |
| 365 | int ret = 0; |
| 366 | int event_num = 0; |
| 367 | struct fio_rbd_iou *fri = NULL; |
| 368 | rbd_completion_t comps[min_evts]; |
| 369 | |
| 370 | struct pollfd pfd; |
| 371 | pfd.fd = rbd->fd; |
| 372 | pfd.events = POLLIN; |
| 373 | |
| 374 | ret = poll(&pfd, 1, -1); |
| 375 | if (ret <= 0) |
| 376 | return 0; |
| 377 | |
| 378 | assert(pfd.revents & POLLIN); |
| 379 | |
| 380 | event_num = rbd_poll_io_events(rbd->image, comps, min_evts); |
| 381 | |
| 382 | for (i = 0; i < event_num; i++) { |
| 383 | fri = rbd_aio_get_arg(comps[i]); |
| 384 | io_u = fri->io_u; |
| 385 | #else |
| 386 | io_u_qiter(&td->io_u_all, io_u, i) { |
| 387 | #endif |
| 388 | if (!(io_u->flags & IO_U_F_FLIGHT)) |
| 389 | continue; |
| 390 | if (rbd_io_u_seen(io_u)) |
| 391 | continue; |
| 392 | |
| 393 | if (fri_check_complete(rbd, io_u, events)) |
| 394 | this_events++; |
| 395 | else if (wait) |
| 396 | rbd->sort_events[sidx++] = io_u; |
| 397 | } |
| 398 | |
| 399 | if (!wait || !sidx) |
| 400 | return this_events; |
| 401 | |
| 402 | /* |
| 403 | * Sort events, oldest issue first, then wait on as many as we |
| 404 | * need in order of age. If we have enough events, stop waiting, |
| 405 | * and just check if any of the older ones are done. |
| 406 | */ |
| 407 | if (sidx > 1) |
| 408 | qsort(rbd->sort_events, sidx, sizeof(struct io_u *), rbd_io_u_cmp); |
| 409 | |
| 410 | for (i = 0; i < sidx; i++) { |
| 411 | io_u = rbd->sort_events[i]; |
| 412 | |
| 413 | if (fri_check_complete(rbd, io_u, events)) { |
| 414 | this_events++; |
| 415 | continue; |
| 416 | } |
| 417 | |
| 418 | /* |
| 419 | * Stop waiting when we have enough, but continue checking |
| 420 | * all pending IOs if they are complete. |
| 421 | */ |
| 422 | if (*events >= min_evts) |
| 423 | continue; |
| 424 | |
| 425 | rbd_io_u_wait_complete(io_u); |
| 426 | |
| 427 | if (fri_check_complete(rbd, io_u, events)) |
| 428 | this_events++; |
| 429 | } |
| 430 | |
| 431 | return this_events; |
| 432 | } |
| 433 | |
| 434 | static int fio_rbd_getevents(struct thread_data *td, unsigned int min, |
| 435 | unsigned int max, const struct timespec *t) |
| 436 | { |
| 437 | unsigned int this_events, events = 0; |
| 438 | struct rbd_options *o = td->eo; |
| 439 | int wait = 0; |
| 440 | |
| 441 | do { |
| 442 | this_events = rbd_iter_events(td, &events, min, wait); |
| 443 | |
| 444 | if (events >= min) |
| 445 | break; |
| 446 | if (this_events) |
| 447 | continue; |
| 448 | |
| 449 | if (!o->busy_poll) |
| 450 | wait = 1; |
| 451 | else |
| 452 | nop; |
| 453 | } while (1); |
| 454 | |
| 455 | return events; |
| 456 | } |
| 457 | |
| 458 | static int fio_rbd_queue(struct thread_data *td, struct io_u *io_u) |
| 459 | { |
| 460 | struct rbd_data *rbd = td->io_ops_data; |
| 461 | struct fio_rbd_iou *fri = io_u->engine_data; |
| 462 | int r = -1; |
| 463 | |
| 464 | fio_ro_check(td, io_u); |
| 465 | |
| 466 | fri->io_seen = 0; |
| 467 | fri->io_complete = 0; |
| 468 | |
| 469 | r = rbd_aio_create_completion(fri, _fio_rbd_finish_aiocb, |
| 470 | &fri->completion); |
| 471 | if (r < 0) { |
| 472 | log_err("rbd_aio_create_completion failed.\n"); |
| 473 | goto failed; |
| 474 | } |
| 475 | |
| 476 | if (io_u->ddir == DDIR_WRITE) { |
| 477 | #ifdef CONFIG_RBD_BLKIN |
| 478 | blkin_init_trace_info(&fri->info); |
| 479 | r = rbd_aio_write_traced(rbd->image, io_u->offset, io_u->xfer_buflen, |
| 480 | io_u->xfer_buf, fri->completion, &fri->info); |
| 481 | #else |
| 482 | r = rbd_aio_write(rbd->image, io_u->offset, io_u->xfer_buflen, |
| 483 | io_u->xfer_buf, fri->completion); |
| 484 | #endif |
| 485 | if (r < 0) { |
| 486 | log_err("rbd_aio_write failed.\n"); |
| 487 | goto failed_comp; |
| 488 | } |
| 489 | |
| 490 | } else if (io_u->ddir == DDIR_READ) { |
| 491 | #ifdef CONFIG_RBD_BLKIN |
| 492 | blkin_init_trace_info(&fri->info); |
| 493 | r = rbd_aio_read_traced(rbd->image, io_u->offset, io_u->xfer_buflen, |
| 494 | io_u->xfer_buf, fri->completion, &fri->info); |
| 495 | #else |
| 496 | r = rbd_aio_read(rbd->image, io_u->offset, io_u->xfer_buflen, |
| 497 | io_u->xfer_buf, fri->completion); |
| 498 | #endif |
| 499 | |
| 500 | if (r < 0) { |
| 501 | log_err("rbd_aio_read failed.\n"); |
| 502 | goto failed_comp; |
| 503 | } |
| 504 | } else if (io_u->ddir == DDIR_TRIM) { |
| 505 | r = rbd_aio_discard(rbd->image, io_u->offset, |
| 506 | io_u->xfer_buflen, fri->completion); |
| 507 | if (r < 0) { |
| 508 | log_err("rbd_aio_discard failed.\n"); |
| 509 | goto failed_comp; |
| 510 | } |
| 511 | } else if (io_u->ddir == DDIR_SYNC) { |
| 512 | r = rbd_aio_flush(rbd->image, fri->completion); |
| 513 | if (r < 0) { |
| 514 | log_err("rbd_flush failed.\n"); |
| 515 | goto failed_comp; |
| 516 | } |
| 517 | } else { |
| 518 | dprint(FD_IO, "%s: Warning: unhandled ddir: %d\n", __func__, |
| 519 | io_u->ddir); |
| 520 | r = -EINVAL; |
| 521 | goto failed_comp; |
| 522 | } |
| 523 | |
| 524 | return FIO_Q_QUEUED; |
| 525 | failed_comp: |
| 526 | rbd_aio_release(fri->completion); |
| 527 | failed: |
| 528 | io_u->error = -r; |
| 529 | td_verror(td, io_u->error, "xfer"); |
| 530 | return FIO_Q_COMPLETED; |
| 531 | } |
| 532 | |
| 533 | static int fio_rbd_init(struct thread_data *td) |
| 534 | { |
| 535 | int r; |
| 536 | struct rbd_data *rbd = td->io_ops_data; |
| 537 | |
| 538 | if (rbd->connected) |
| 539 | return 0; |
| 540 | |
| 541 | r = _fio_rbd_connect(td); |
| 542 | if (r) { |
| 543 | log_err("fio_rbd_connect failed, return code: %d .\n", r); |
| 544 | goto failed; |
| 545 | } |
| 546 | |
| 547 | return 0; |
| 548 | |
| 549 | failed: |
| 550 | return 1; |
| 551 | } |
| 552 | |
| 553 | static void fio_rbd_cleanup(struct thread_data *td) |
| 554 | { |
| 555 | struct rbd_data *rbd = td->io_ops_data; |
| 556 | |
| 557 | if (rbd) { |
| 558 | _fio_rbd_disconnect(rbd); |
| 559 | free(rbd->aio_events); |
| 560 | free(rbd->sort_events); |
| 561 | free(rbd); |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | static int fio_rbd_setup(struct thread_data *td) |
| 566 | { |
| 567 | rbd_image_info_t info; |
| 568 | struct fio_file *f; |
| 569 | struct rbd_data *rbd = NULL; |
| 570 | int r; |
| 571 | |
| 572 | /* allocate engine specific structure to deal with librbd. */ |
| 573 | r = _fio_setup_rbd_data(td, &rbd); |
| 574 | if (r) { |
| 575 | log_err("fio_setup_rbd_data failed.\n"); |
| 576 | goto cleanup; |
| 577 | } |
| 578 | td->io_ops_data = rbd; |
| 579 | |
| 580 | /* librbd does not allow us to run first in the main thread and later |
| 581 | * in a fork child. It needs to be the same process context all the |
| 582 | * time. |
| 583 | */ |
| 584 | td->o.use_thread = 1; |
| 585 | |
| 586 | /* connect in the main thread to determine to determine |
| 587 | * the size of the given RADOS block device. And disconnect |
| 588 | * later on. |
| 589 | */ |
| 590 | r = _fio_rbd_connect(td); |
| 591 | if (r) { |
| 592 | log_err("fio_rbd_connect failed.\n"); |
| 593 | goto cleanup; |
| 594 | } |
| 595 | rbd->connected = true; |
| 596 | |
| 597 | /* get size of the RADOS block device */ |
| 598 | r = rbd_stat(rbd->image, &info, sizeof(info)); |
| 599 | if (r < 0) { |
| 600 | log_err("rbd_status failed.\n"); |
| 601 | goto cleanup; |
| 602 | } else if (info.size == 0) { |
| 603 | log_err("image size should be larger than zero.\n"); |
| 604 | r = -EINVAL; |
| 605 | goto cleanup; |
| 606 | } |
| 607 | |
| 608 | dprint(FD_IO, "rbd-engine: image size: %" PRIu64 "\n", info.size); |
| 609 | |
| 610 | /* taken from "net" engine. Pretend we deal with files, |
| 611 | * even if we do not have any ideas about files. |
| 612 | * The size of the RBD is set instead of a artificial file. |
| 613 | */ |
| 614 | if (!td->files_index) { |
| 615 | add_file(td, td->o.filename ? : "rbd", 0, 0); |
| 616 | td->o.nr_files = td->o.nr_files ? : 1; |
| 617 | td->o.open_files++; |
| 618 | } |
| 619 | f = td->files[0]; |
| 620 | f->real_file_size = info.size; |
| 621 | |
| 622 | return 0; |
| 623 | |
| 624 | cleanup: |
| 625 | fio_rbd_cleanup(td); |
| 626 | return r; |
| 627 | } |
| 628 | |
| 629 | static int fio_rbd_open(struct thread_data *td, struct fio_file *f) |
| 630 | { |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | static int fio_rbd_invalidate(struct thread_data *td, struct fio_file *f) |
| 635 | { |
| 636 | #if defined(CONFIG_RBD_INVAL) |
| 637 | struct rbd_data *rbd = td->io_ops_data; |
| 638 | |
| 639 | return rbd_invalidate_cache(rbd->image); |
| 640 | #else |
| 641 | return 0; |
| 642 | #endif |
| 643 | } |
| 644 | |
| 645 | static void fio_rbd_io_u_free(struct thread_data *td, struct io_u *io_u) |
| 646 | { |
| 647 | struct fio_rbd_iou *fri = io_u->engine_data; |
| 648 | |
| 649 | if (fri) { |
| 650 | io_u->engine_data = NULL; |
| 651 | free(fri); |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | static int fio_rbd_io_u_init(struct thread_data *td, struct io_u *io_u) |
| 656 | { |
| 657 | struct fio_rbd_iou *fri; |
| 658 | |
| 659 | fri = calloc(1, sizeof(*fri)); |
| 660 | fri->io_u = io_u; |
| 661 | io_u->engine_data = fri; |
| 662 | return 0; |
| 663 | } |
| 664 | |
| 665 | static struct ioengine_ops ioengine = { |
| 666 | .name = "rbd", |
| 667 | .version = FIO_IOOPS_VERSION, |
| 668 | .setup = fio_rbd_setup, |
| 669 | .init = fio_rbd_init, |
| 670 | .queue = fio_rbd_queue, |
| 671 | .getevents = fio_rbd_getevents, |
| 672 | .event = fio_rbd_event, |
| 673 | .cleanup = fio_rbd_cleanup, |
| 674 | .open_file = fio_rbd_open, |
| 675 | .invalidate = fio_rbd_invalidate, |
| 676 | .options = options, |
| 677 | .io_u_init = fio_rbd_io_u_init, |
| 678 | .io_u_free = fio_rbd_io_u_free, |
| 679 | .option_struct_size = sizeof(struct rbd_options), |
| 680 | }; |
| 681 | |
| 682 | static void fio_init fio_rbd_register(void) |
| 683 | { |
| 684 | register_ioengine(&ioengine); |
| 685 | } |
| 686 | |
| 687 | static void fio_exit fio_rbd_unregister(void) |
| 688 | { |
| 689 | unregister_ioengine(&ioengine); |
| 690 | } |