rf_states.c revision 1.6.2.1
1 /* $NetBSD: rf_states.c,v 1.6.2.1 1999/09/26 02:14:27 cgd Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland, William V. Courtright II, Robby Findler 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 #include <sys/errno.h> 30 31 #include "rf_archs.h" 32 #include "rf_threadstuff.h" 33 #include "rf_raid.h" 34 #include "rf_dag.h" 35 #include "rf_desc.h" 36 #include "rf_aselect.h" 37 #include "rf_threadid.h" 38 #include "rf_general.h" 39 #include "rf_states.h" 40 #include "rf_dagutils.h" 41 #include "rf_driver.h" 42 #include "rf_engine.h" 43 #include "rf_map.h" 44 #include "rf_etimer.h" 45 46 #if defined(KERNEL) && (DKUSAGE > 0) 47 #include <sys/dkusage.h> 48 #include <io/common/iotypes.h> 49 #include <io/cam/dec_cam.h> 50 #include <io/cam/cam.h> 51 #include <io/cam/pdrv.h> 52 #endif /* KERNEL && DKUSAGE > 0 */ 53 54 /* prototypes for some of the available states. 55 56 States must: 57 58 - not block. 59 60 - either schedule rf_ContinueRaidAccess as a callback and return 61 RF_TRUE, or complete all of their work and return RF_FALSE. 62 63 - increment desc->state when they have finished their work. 64 */ 65 66 static char * 67 StateName(RF_AccessState_t state) 68 { 69 switch (state) { 70 case rf_QuiesceState:return "QuiesceState"; 71 case rf_MapState: 72 return "MapState"; 73 case rf_LockState: 74 return "LockState"; 75 case rf_CreateDAGState: 76 return "CreateDAGState"; 77 case rf_ExecuteDAGState: 78 return "ExecuteDAGState"; 79 case rf_ProcessDAGState: 80 return "ProcessDAGState"; 81 case rf_CleanupState: 82 return "CleanupState"; 83 case rf_LastState: 84 return "LastState"; 85 case rf_IncrAccessesCountState: 86 return "IncrAccessesCountState"; 87 case rf_DecrAccessesCountState: 88 return "DecrAccessesCountState"; 89 default: 90 return "!!! UnnamedState !!!"; 91 } 92 } 93 94 void 95 rf_ContinueRaidAccess(RF_RaidAccessDesc_t * desc) 96 { 97 int suspended = RF_FALSE; 98 int current_state_index = desc->state; 99 RF_AccessState_t current_state = desc->states[current_state_index]; 100 101 do { 102 103 current_state_index = desc->state; 104 current_state = desc->states[current_state_index]; 105 106 switch (current_state) { 107 108 case rf_QuiesceState: 109 suspended = rf_State_Quiesce(desc); 110 break; 111 case rf_IncrAccessesCountState: 112 suspended = rf_State_IncrAccessCount(desc); 113 break; 114 case rf_MapState: 115 suspended = rf_State_Map(desc); 116 break; 117 case rf_LockState: 118 suspended = rf_State_Lock(desc); 119 break; 120 case rf_CreateDAGState: 121 suspended = rf_State_CreateDAG(desc); 122 break; 123 case rf_ExecuteDAGState: 124 suspended = rf_State_ExecuteDAG(desc); 125 break; 126 case rf_ProcessDAGState: 127 suspended = rf_State_ProcessDAG(desc); 128 break; 129 case rf_CleanupState: 130 suspended = rf_State_Cleanup(desc); 131 break; 132 case rf_DecrAccessesCountState: 133 suspended = rf_State_DecrAccessCount(desc); 134 break; 135 case rf_LastState: 136 suspended = rf_State_LastState(desc); 137 break; 138 } 139 140 /* after this point, we cannot dereference desc since desc may 141 * have been freed. desc is only freed in LastState, so if we 142 * renter this function or loop back up, desc should be valid. */ 143 144 if (rf_printStatesDebug) { 145 int tid; 146 rf_get_threadid(tid); 147 148 printf("[%d] State: %-24s StateIndex: %3i desc: 0x%ld %s\n", 149 tid, StateName(current_state), current_state_index, (long) desc, 150 suspended ? "callback scheduled" : "looping"); 151 } 152 } while (!suspended && current_state != rf_LastState); 153 154 return; 155 } 156 157 158 void 159 rf_ContinueDagAccess(RF_DagList_t * dagList) 160 { 161 RF_AccTraceEntry_t *tracerec = &(dagList->desc->tracerec); 162 RF_RaidAccessDesc_t *desc; 163 RF_DagHeader_t *dag_h; 164 RF_Etimer_t timer; 165 int i; 166 167 desc = dagList->desc; 168 169 timer = tracerec->timer; 170 RF_ETIMER_STOP(timer); 171 RF_ETIMER_EVAL(timer); 172 tracerec->specific.user.exec_us = RF_ETIMER_VAL_US(timer); 173 RF_ETIMER_START(tracerec->timer); 174 175 /* skip to dag which just finished */ 176 dag_h = dagList->dags; 177 for (i = 0; i < dagList->numDagsDone; i++) { 178 dag_h = dag_h->next; 179 } 180 181 /* check to see if retry is required */ 182 if (dag_h->status == rf_rollBackward) { 183 /* when a dag fails, mark desc status as bad and allow all 184 * other dags in the desc to execute to completion. then, 185 * free all dags and start over */ 186 desc->status = 1; /* bad status */ 187 { 188 printf("[%d] DAG failure: %c addr 0x%lx (%ld) nblk 0x%x (%d) buf 0x%lx\n", 189 desc->tid, desc->type, (long) desc->raidAddress, 190 (long) desc->raidAddress, (int) desc->numBlocks, 191 (int) desc->numBlocks, (unsigned long) (desc->bufPtr)); 192 } 193 } 194 dagList->numDagsDone++; 195 rf_ContinueRaidAccess(desc); 196 } 197 198 199 int 200 rf_State_LastState(RF_RaidAccessDesc_t * desc) 201 { 202 void (*callbackFunc) (RF_CBParam_t) = desc->callbackFunc; 203 RF_CBParam_t callbackArg; 204 205 callbackArg.p = desc->callbackArg; 206 207 if (!(desc->flags & RF_DAG_TEST_ACCESS)) { /* don't biodone if this */ 208 #if DKUSAGE > 0 209 RF_DKU_END_IO(((RF_Raid_t *) desc->raidPtr)->raidid, (struct buf *) desc->bp); 210 #else 211 RF_DKU_END_IO(((RF_Raid_t *) desc->raidPtr)->raidid); 212 #endif /* DKUSAGE > 0 */ 213 214 /* 215 * If this is not an async request, wake up the caller 216 */ 217 if (desc->async_flag == 0) 218 wakeup(desc->bp); 219 220 /* 221 * Wakeup any requests waiting to go. 222 */ 223 224 RF_LOCK_MUTEX(((RF_Raid_t *) desc->raidPtr)->mutex); 225 ((RF_Raid_t *) desc->raidPtr)->openings++; 226 wakeup(&(((RF_Raid_t *) desc->raidPtr)->openings)); 227 RF_UNLOCK_MUTEX(((RF_Raid_t *) desc->raidPtr)->mutex); 228 229 230 /* printf("Calling biodone on 0x%x\n",desc->bp); */ 231 biodone(desc->bp); /* access came through ioctl */ 232 } 233 if (callbackFunc) 234 callbackFunc(callbackArg); 235 rf_FreeRaidAccDesc(desc); 236 237 return RF_FALSE; 238 } 239 240 int 241 rf_State_IncrAccessCount(RF_RaidAccessDesc_t * desc) 242 { 243 RF_Raid_t *raidPtr; 244 245 raidPtr = desc->raidPtr; 246 /* Bummer. We have to do this to be 100% safe w.r.t. the increment 247 * below */ 248 RF_LOCK_MUTEX(raidPtr->access_suspend_mutex); 249 raidPtr->accs_in_flight++; /* used to detect quiescence */ 250 RF_UNLOCK_MUTEX(raidPtr->access_suspend_mutex); 251 252 desc->state++; 253 return RF_FALSE; 254 } 255 256 int 257 rf_State_DecrAccessCount(RF_RaidAccessDesc_t * desc) 258 { 259 RF_Raid_t *raidPtr; 260 261 raidPtr = desc->raidPtr; 262 263 RF_LOCK_MUTEX(raidPtr->access_suspend_mutex); 264 raidPtr->accs_in_flight--; 265 if (raidPtr->accesses_suspended && raidPtr->accs_in_flight == 0) { 266 rf_SignalQuiescenceLock(raidPtr, raidPtr->reconDesc); 267 } 268 rf_UpdateUserStats(raidPtr, RF_ETIMER_VAL_US(desc->timer), desc->numBlocks); 269 RF_UNLOCK_MUTEX(raidPtr->access_suspend_mutex); 270 271 desc->state++; 272 return RF_FALSE; 273 } 274 275 int 276 rf_State_Quiesce(RF_RaidAccessDesc_t * desc) 277 { 278 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 279 RF_Etimer_t timer; 280 int suspended = RF_FALSE; 281 RF_Raid_t *raidPtr; 282 283 raidPtr = desc->raidPtr; 284 285 RF_ETIMER_START(timer); 286 RF_ETIMER_START(desc->timer); 287 288 RF_LOCK_MUTEX(raidPtr->access_suspend_mutex); 289 if (raidPtr->accesses_suspended) { 290 RF_CallbackDesc_t *cb; 291 cb = rf_AllocCallbackDesc(); 292 /* XXX the following cast is quite bogus... 293 * rf_ContinueRaidAccess takes a (RF_RaidAccessDesc_t *) as an 294 * argument.. GO */ 295 cb->callbackFunc = (void (*) (RF_CBParam_t)) rf_ContinueRaidAccess; 296 cb->callbackArg.p = (void *) desc; 297 cb->next = raidPtr->quiesce_wait_list; 298 raidPtr->quiesce_wait_list = cb; 299 suspended = RF_TRUE; 300 } 301 RF_UNLOCK_MUTEX(raidPtr->access_suspend_mutex); 302 303 RF_ETIMER_STOP(timer); 304 RF_ETIMER_EVAL(timer); 305 tracerec->specific.user.suspend_ovhd_us += RF_ETIMER_VAL_US(timer); 306 307 if (suspended && rf_quiesceDebug) 308 printf("Stalling access due to quiescence lock\n"); 309 310 desc->state++; 311 return suspended; 312 } 313 314 int 315 rf_State_Map(RF_RaidAccessDesc_t * desc) 316 { 317 RF_Raid_t *raidPtr = desc->raidPtr; 318 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 319 RF_Etimer_t timer; 320 321 RF_ETIMER_START(timer); 322 323 if (!(desc->asmap = rf_MapAccess(raidPtr, desc->raidAddress, desc->numBlocks, 324 desc->bufPtr, RF_DONT_REMAP))) 325 RF_PANIC(); 326 327 RF_ETIMER_STOP(timer); 328 RF_ETIMER_EVAL(timer); 329 tracerec->specific.user.map_us = RF_ETIMER_VAL_US(timer); 330 331 desc->state++; 332 return RF_FALSE; 333 } 334 335 int 336 rf_State_Lock(RF_RaidAccessDesc_t * desc) 337 { 338 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 339 RF_Raid_t *raidPtr = desc->raidPtr; 340 RF_AccessStripeMapHeader_t *asmh = desc->asmap; 341 RF_AccessStripeMap_t *asm_p; 342 RF_Etimer_t timer; 343 int suspended = RF_FALSE; 344 345 RF_ETIMER_START(timer); 346 if (!(raidPtr->Layout.map->flags & RF_NO_STRIPE_LOCKS)) { 347 RF_StripeNum_t lastStripeID = -1; 348 349 /* acquire each lock that we don't already hold */ 350 for (asm_p = asmh->stripeMap; asm_p; asm_p = asm_p->next) { 351 RF_ASSERT(RF_IO_IS_R_OR_W(desc->type)); 352 if (!rf_suppressLocksAndLargeWrites && 353 asm_p->parityInfo && 354 !(desc->flags & RF_DAG_SUPPRESS_LOCKS) && 355 !(asm_p->flags & RF_ASM_FLAGS_LOCK_TRIED)) { 356 asm_p->flags |= RF_ASM_FLAGS_LOCK_TRIED; 357 RF_ASSERT(asm_p->stripeID > lastStripeID); /* locks must be 358 * acquired 359 * hierarchically */ 360 lastStripeID = asm_p->stripeID; 361 /* XXX the cast to (void (*)(RF_CBParam_t)) 362 * below is bogus! GO */ 363 RF_INIT_LOCK_REQ_DESC(asm_p->lockReqDesc, desc->type, 364 (void (*) (struct buf *)) rf_ContinueRaidAccess, desc, asm_p, 365 raidPtr->Layout.dataSectorsPerStripe); 366 if (rf_AcquireStripeLock(raidPtr->lockTable, asm_p->stripeID, 367 &asm_p->lockReqDesc)) { 368 suspended = RF_TRUE; 369 break; 370 } 371 } 372 if (desc->type == RF_IO_TYPE_WRITE && 373 raidPtr->status[asm_p->physInfo->row] == rf_rs_reconstructing) { 374 if (!(asm_p->flags & RF_ASM_FLAGS_FORCE_TRIED)) { 375 int val; 376 377 asm_p->flags |= RF_ASM_FLAGS_FORCE_TRIED; 378 /* XXX the cast below is quite 379 * bogus!!! XXX GO */ 380 val = rf_ForceOrBlockRecon(raidPtr, asm_p, 381 (void (*) (RF_Raid_t *, void *)) rf_ContinueRaidAccess, desc); 382 if (val == 0) { 383 asm_p->flags |= RF_ASM_FLAGS_RECON_BLOCKED; 384 } else { 385 suspended = RF_TRUE; 386 break; 387 } 388 } else { 389 if (rf_pssDebug) { 390 printf("[%d] skipping force/block because already done, psid %ld\n", 391 desc->tid, (long) asm_p->stripeID); 392 } 393 } 394 } else { 395 if (rf_pssDebug) { 396 printf("[%d] skipping force/block because not write or not under recon, psid %ld\n", 397 desc->tid, (long) asm_p->stripeID); 398 } 399 } 400 } 401 402 RF_ETIMER_STOP(timer); 403 RF_ETIMER_EVAL(timer); 404 tracerec->specific.user.lock_us += RF_ETIMER_VAL_US(timer); 405 406 if (suspended) 407 return (RF_TRUE); 408 } 409 desc->state++; 410 return (RF_FALSE); 411 } 412 /* 413 * the following three states create, execute, and post-process dags 414 * the error recovery unit is a single dag. 415 * by default, SelectAlgorithm creates an array of dags, one per parity stripe 416 * in some tricky cases, multiple dags per stripe are created 417 * - dags within a parity stripe are executed sequentially (arbitrary order) 418 * - dags for distinct parity stripes are executed concurrently 419 * 420 * repeat until all dags complete successfully -or- dag selection fails 421 * 422 * while !done 423 * create dag(s) (SelectAlgorithm) 424 * if dag 425 * execute dag (DispatchDAG) 426 * if dag successful 427 * done (SUCCESS) 428 * else 429 * !done (RETRY - start over with new dags) 430 * else 431 * done (FAIL) 432 */ 433 int 434 rf_State_CreateDAG(RF_RaidAccessDesc_t * desc) 435 { 436 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 437 RF_Etimer_t timer; 438 RF_DagHeader_t *dag_h; 439 int i, selectStatus; 440 441 /* generate a dag for the access, and fire it off. When the dag 442 * completes, we'll get re-invoked in the next state. */ 443 RF_ETIMER_START(timer); 444 /* SelectAlgorithm returns one or more dags */ 445 selectStatus = rf_SelectAlgorithm(desc, desc->flags | RF_DAG_SUPPRESS_LOCKS); 446 if (rf_printDAGsDebug) 447 for (i = 0; i < desc->numStripes; i++) 448 rf_PrintDAGList(desc->dagArray[i].dags); 449 RF_ETIMER_STOP(timer); 450 RF_ETIMER_EVAL(timer); 451 /* update time to create all dags */ 452 tracerec->specific.user.dag_create_us = RF_ETIMER_VAL_US(timer); 453 454 desc->status = 0; /* good status */ 455 456 if (selectStatus) { 457 /* failed to create a dag */ 458 /* this happens when there are too many faults or incomplete 459 * dag libraries */ 460 printf("[Failed to create a DAG\n]"); 461 RF_PANIC(); 462 } else { 463 /* bind dags to desc */ 464 for (i = 0; i < desc->numStripes; i++) { 465 dag_h = desc->dagArray[i].dags; 466 while (dag_h) { 467 dag_h->bp = (struct buf *) desc->bp; 468 dag_h->tracerec = tracerec; 469 dag_h = dag_h->next; 470 } 471 } 472 desc->flags |= RF_DAG_DISPATCH_RETURNED; 473 desc->state++; /* next state should be rf_State_ExecuteDAG */ 474 } 475 return RF_FALSE; 476 } 477 478 479 480 /* the access has an array of dagLists, one dagList per parity stripe. 481 * fire the first dag in each parity stripe (dagList). 482 * dags within a stripe (dagList) must be executed sequentially 483 * - this preserves atomic parity update 484 * dags for independents parity groups (stripes) are fired concurrently */ 485 486 int 487 rf_State_ExecuteDAG(RF_RaidAccessDesc_t * desc) 488 { 489 int i; 490 RF_DagHeader_t *dag_h; 491 RF_DagList_t *dagArray = desc->dagArray; 492 493 /* next state is always rf_State_ProcessDAG important to do this 494 * before firing the first dag (it may finish before we leave this 495 * routine) */ 496 desc->state++; 497 498 /* sweep dag array, a stripe at a time, firing the first dag in each 499 * stripe */ 500 for (i = 0; i < desc->numStripes; i++) { 501 RF_ASSERT(dagArray[i].numDags > 0); 502 RF_ASSERT(dagArray[i].numDagsDone == 0); 503 RF_ASSERT(dagArray[i].numDagsFired == 0); 504 RF_ETIMER_START(dagArray[i].tracerec.timer); 505 /* fire first dag in this stripe */ 506 dag_h = dagArray[i].dags; 507 RF_ASSERT(dag_h); 508 dagArray[i].numDagsFired++; 509 /* XXX Yet another case where we pass in a conflicting 510 * function pointer :-( XXX GO */ 511 rf_DispatchDAG(dag_h, (void (*) (void *)) rf_ContinueDagAccess, &dagArray[i]); 512 } 513 514 /* the DAG will always call the callback, even if there was no 515 * blocking, so we are always suspended in this state */ 516 return RF_TRUE; 517 } 518 519 520 521 /* rf_State_ProcessDAG is entered when a dag completes. 522 * first, check to all dags in the access have completed 523 * if not, fire as many dags as possible */ 524 525 int 526 rf_State_ProcessDAG(RF_RaidAccessDesc_t * desc) 527 { 528 RF_AccessStripeMapHeader_t *asmh = desc->asmap; 529 RF_Raid_t *raidPtr = desc->raidPtr; 530 RF_DagHeader_t *dag_h; 531 int i, j, done = RF_TRUE; 532 RF_DagList_t *dagArray = desc->dagArray; 533 RF_Etimer_t timer; 534 535 /* check to see if this is the last dag */ 536 for (i = 0; i < desc->numStripes; i++) 537 if (dagArray[i].numDags != dagArray[i].numDagsDone) 538 done = RF_FALSE; 539 540 if (done) { 541 if (desc->status) { 542 /* a dag failed, retry */ 543 RF_ETIMER_START(timer); 544 /* free all dags */ 545 for (i = 0; i < desc->numStripes; i++) { 546 rf_FreeDAG(desc->dagArray[i].dags); 547 } 548 rf_MarkFailuresInASMList(raidPtr, asmh); 549 /* back up to rf_State_CreateDAG */ 550 desc->state = desc->state - 2; 551 return RF_FALSE; 552 } else { 553 /* move on to rf_State_Cleanup */ 554 desc->state++; 555 } 556 return RF_FALSE; 557 } else { 558 /* more dags to execute */ 559 /* see if any are ready to be fired. if so, fire them */ 560 /* don't fire the initial dag in a list, it's fired in 561 * rf_State_ExecuteDAG */ 562 for (i = 0; i < desc->numStripes; i++) { 563 if ((dagArray[i].numDagsDone < dagArray[i].numDags) 564 && (dagArray[i].numDagsDone == dagArray[i].numDagsFired) 565 && (dagArray[i].numDagsFired > 0)) { 566 RF_ETIMER_START(dagArray[i].tracerec.timer); 567 /* fire next dag in this stripe */ 568 /* first, skip to next dag awaiting execution */ 569 dag_h = dagArray[i].dags; 570 for (j = 0; j < dagArray[i].numDagsDone; j++) 571 dag_h = dag_h->next; 572 dagArray[i].numDagsFired++; 573 /* XXX and again we pass a different function 574 * pointer.. GO */ 575 rf_DispatchDAG(dag_h, (void (*) (void *)) rf_ContinueDagAccess, 576 &dagArray[i]); 577 } 578 } 579 return RF_TRUE; 580 } 581 } 582 /* only make it this far if all dags complete successfully */ 583 int 584 rf_State_Cleanup(RF_RaidAccessDesc_t * desc) 585 { 586 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 587 RF_AccessStripeMapHeader_t *asmh = desc->asmap; 588 RF_Raid_t *raidPtr = desc->raidPtr; 589 RF_AccessStripeMap_t *asm_p; 590 RF_DagHeader_t *dag_h; 591 RF_Etimer_t timer; 592 int tid, i; 593 594 desc->state++; 595 596 rf_get_threadid(tid); 597 598 timer = tracerec->timer; 599 RF_ETIMER_STOP(timer); 600 RF_ETIMER_EVAL(timer); 601 tracerec->specific.user.dag_retry_us = RF_ETIMER_VAL_US(timer); 602 603 /* the RAID I/O is complete. Clean up. */ 604 tracerec->specific.user.dag_retry_us = 0; 605 606 RF_ETIMER_START(timer); 607 if (desc->flags & RF_DAG_RETURN_DAG) { 608 /* copy dags into paramDAG */ 609 *(desc->paramDAG) = desc->dagArray[0].dags; 610 dag_h = *(desc->paramDAG); 611 for (i = 1; i < desc->numStripes; i++) { 612 /* concatenate dags from remaining stripes */ 613 RF_ASSERT(dag_h); 614 while (dag_h->next) 615 dag_h = dag_h->next; 616 dag_h->next = desc->dagArray[i].dags; 617 } 618 } else { 619 /* free all dags */ 620 for (i = 0; i < desc->numStripes; i++) { 621 rf_FreeDAG(desc->dagArray[i].dags); 622 } 623 } 624 625 RF_ETIMER_STOP(timer); 626 RF_ETIMER_EVAL(timer); 627 tracerec->specific.user.cleanup_us = RF_ETIMER_VAL_US(timer); 628 629 RF_ETIMER_START(timer); 630 if (!(raidPtr->Layout.map->flags & RF_NO_STRIPE_LOCKS)) { 631 for (asm_p = asmh->stripeMap; asm_p; asm_p = asm_p->next) { 632 if (!rf_suppressLocksAndLargeWrites && 633 asm_p->parityInfo && 634 !(desc->flags & RF_DAG_SUPPRESS_LOCKS)) { 635 RF_ASSERT_VALID_LOCKREQ(&asm_p->lockReqDesc); 636 rf_ReleaseStripeLock(raidPtr->lockTable, asm_p->stripeID, 637 &asm_p->lockReqDesc); 638 } 639 if (asm_p->flags & RF_ASM_FLAGS_RECON_BLOCKED) { 640 rf_UnblockRecon(raidPtr, asm_p); 641 } 642 } 643 } 644 RF_ETIMER_STOP(timer); 645 RF_ETIMER_EVAL(timer); 646 tracerec->specific.user.lock_us += RF_ETIMER_VAL_US(timer); 647 648 RF_ETIMER_START(timer); 649 if (desc->flags & RF_DAG_RETURN_ASM) 650 *(desc->paramASM) = asmh; 651 else 652 rf_FreeAccessStripeMap(asmh); 653 RF_ETIMER_STOP(timer); 654 RF_ETIMER_EVAL(timer); 655 tracerec->specific.user.cleanup_us += RF_ETIMER_VAL_US(timer); 656 657 RF_ETIMER_STOP(desc->timer); 658 RF_ETIMER_EVAL(desc->timer); 659 660 timer = desc->tracerec.tot_timer; 661 RF_ETIMER_STOP(timer); 662 RF_ETIMER_EVAL(timer); 663 desc->tracerec.total_us = RF_ETIMER_VAL_US(timer); 664 665 rf_LogTraceRec(raidPtr, tracerec); 666 667 desc->flags |= RF_DAG_ACCESS_COMPLETE; 668 669 return RF_FALSE; 670 } 671
Indexes created Sat Oct 11 19:10:01 GMT 2025