1 /* $NetBSD: rf_states.c,v 1.18 2002/09/17 03:54:43 oster 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@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/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: rf_states.c,v 1.18 2002/09/17 03:54:43 oster Exp $"); 31 32 #include <sys/errno.h> 33 34 #include "rf_archs.h" 35 #include "rf_threadstuff.h" 36 #include "rf_raid.h" 37 #include "rf_dag.h" 38 #include "rf_desc.h" 39 #include "rf_aselect.h" 40 #include "rf_general.h" 41 #include "rf_states.h" 42 #include "rf_dagutils.h" 43 #include "rf_driver.h" 44 #include "rf_engine.h" 45 #include "rf_map.h" 46 #include "rf_etimer.h" 47 #include "rf_kintf.h" 48 49 /* prototypes for some of the available states. 50 51 States must: 52 53 - not block. 54 55 - either schedule rf_ContinueRaidAccess as a callback and return 56 RF_TRUE, or complete all of their work and return RF_FALSE. 57 58 - increment desc->state when they have finished their work. 59 */ 60 61 static char * 62 StateName(RF_AccessState_t state) 63 { 64 switch (state) { 65 case rf_QuiesceState:return "QuiesceState"; 66 case rf_MapState: 67 return "MapState"; 68 case rf_LockState: 69 return "LockState"; 70 case rf_CreateDAGState: 71 return "CreateDAGState"; 72 case rf_ExecuteDAGState: 73 return "ExecuteDAGState"; 74 case rf_ProcessDAGState: 75 return "ProcessDAGState"; 76 case rf_CleanupState: 77 return "CleanupState"; 78 case rf_LastState: 79 return "LastState"; 80 case rf_IncrAccessesCountState: 81 return "IncrAccessesCountState"; 82 case rf_DecrAccessesCountState: 83 return "DecrAccessesCountState"; 84 default: 85 return "!!! UnnamedState !!!"; 86 } 87 } 88 89 void 90 rf_ContinueRaidAccess(RF_RaidAccessDesc_t * desc) 91 { 92 int suspended = RF_FALSE; 93 int current_state_index = desc->state; 94 RF_AccessState_t current_state = desc->states[current_state_index]; 95 int unit = desc->raidPtr->raidid; 96 97 do { 98 99 current_state_index = desc->state; 100 current_state = desc->states[current_state_index]; 101 102 switch (current_state) { 103 104 case rf_QuiesceState: 105 suspended = rf_State_Quiesce(desc); 106 break; 107 case rf_IncrAccessesCountState: 108 suspended = rf_State_IncrAccessCount(desc); 109 break; 110 case rf_MapState: 111 suspended = rf_State_Map(desc); 112 break; 113 case rf_LockState: 114 suspended = rf_State_Lock(desc); 115 break; 116 case rf_CreateDAGState: 117 suspended = rf_State_CreateDAG(desc); 118 break; 119 case rf_ExecuteDAGState: 120 suspended = rf_State_ExecuteDAG(desc); 121 break; 122 case rf_ProcessDAGState: 123 suspended = rf_State_ProcessDAG(desc); 124 break; 125 case rf_CleanupState: 126 suspended = rf_State_Cleanup(desc); 127 break; 128 case rf_DecrAccessesCountState: 129 suspended = rf_State_DecrAccessCount(desc); 130 break; 131 case rf_LastState: 132 suspended = rf_State_LastState(desc); 133 break; 134 } 135 136 /* after this point, we cannot dereference desc since desc may 137 * have been freed. desc is only freed in LastState, so if we 138 * renter this function or loop back up, desc should be valid. */ 139 140 if (rf_printStatesDebug) { 141 printf("raid%d: State: %-24s StateIndex: %3i desc: 0x%ld %s\n", 142 unit, StateName(current_state), 143 current_state_index, (long) desc, 144 suspended ? "callback scheduled" : "looping"); 145 } 146 } while (!suspended && current_state != rf_LastState); 147 148 return; 149 } 150 151 152 void 153 rf_ContinueDagAccess(RF_DagList_t * dagList) 154 { 155 RF_AccTraceEntry_t *tracerec = &(dagList->desc->tracerec); 156 RF_RaidAccessDesc_t *desc; 157 RF_DagHeader_t *dag_h; 158 RF_Etimer_t timer; 159 int i; 160 161 desc = dagList->desc; 162 163 timer = tracerec->timer; 164 RF_ETIMER_STOP(timer); 165 RF_ETIMER_EVAL(timer); 166 tracerec->specific.user.exec_us = RF_ETIMER_VAL_US(timer); 167 RF_ETIMER_START(tracerec->timer); 168 169 /* skip to dag which just finished */ 170 dag_h = dagList->dags; 171 for (i = 0; i < dagList->numDagsDone; i++) { 172 dag_h = dag_h->next; 173 } 174 175 /* check to see if retry is required */ 176 if (dag_h->status == rf_rollBackward) { 177 /* when a dag fails, mark desc status as bad and allow all 178 * other dags in the desc to execute to completion. then, 179 * free all dags and start over */ 180 desc->status = 1; /* bad status */ 181 { 182 printf("raid%d: DAG failure: %c addr 0x%lx (%ld) nblk 0x%x (%d) buf 0x%lx\n", 183 desc->raidPtr->raidid, desc->type, 184 (long) desc->raidAddress, 185 (long) desc->raidAddress, (int) desc->numBlocks, 186 (int) desc->numBlocks, 187 (unsigned long) (desc->bufPtr)); 188 } 189 } 190 dagList->numDagsDone++; 191 rf_ContinueRaidAccess(desc); 192 } 193 194 int 195 rf_State_LastState(RF_RaidAccessDesc_t * desc) 196 { 197 void (*callbackFunc) (RF_CBParam_t) = desc->callbackFunc; 198 RF_CBParam_t callbackArg; 199 200 callbackArg.p = desc->callbackArg; 201 202 /* 203 * If this is not an async request, wake up the caller 204 */ 205 if (desc->async_flag == 0) 206 wakeup(desc->bp); 207 208 /* 209 * That's all the IO for this one... unbusy the 'disk'. 210 */ 211 212 rf_disk_unbusy(desc); 213 214 /* 215 * Wakeup any requests waiting to go. 216 */ 217 218 RF_LOCK_MUTEX(((RF_Raid_t *) desc->raidPtr)->mutex); 219 ((RF_Raid_t *) desc->raidPtr)->openings++; 220 RF_UNLOCK_MUTEX(((RF_Raid_t *) desc->raidPtr)->mutex); 221 222 /* wake up any pending IO */ 223 raidstart(((RF_Raid_t *) desc->raidPtr)); 224 225 /* printf("Calling biodone on 0x%x\n",desc->bp); */ 226 biodone(desc->bp); /* access came through ioctl */ 227 228 if (callbackFunc) 229 callbackFunc(callbackArg); 230 rf_FreeRaidAccDesc(desc); 231 232 return RF_FALSE; 233 } 234 235 int 236 rf_State_IncrAccessCount(RF_RaidAccessDesc_t * desc) 237 { 238 RF_Raid_t *raidPtr; 239 240 raidPtr = desc->raidPtr; 241 /* Bummer. We have to do this to be 100% safe w.r.t. the increment 242 * below */ 243 RF_LOCK_MUTEX(raidPtr->access_suspend_mutex); 244 raidPtr->accs_in_flight++; /* used to detect quiescence */ 245 RF_UNLOCK_MUTEX(raidPtr->access_suspend_mutex); 246 247 desc->state++; 248 return RF_FALSE; 249 } 250 251 int 252 rf_State_DecrAccessCount(RF_RaidAccessDesc_t * desc) 253 { 254 RF_Raid_t *raidPtr; 255 256 raidPtr = desc->raidPtr; 257 258 RF_LOCK_MUTEX(raidPtr->access_suspend_mutex); 259 raidPtr->accs_in_flight--; 260 if (raidPtr->accesses_suspended && raidPtr->accs_in_flight == 0) { 261 rf_SignalQuiescenceLock(raidPtr, raidPtr->reconDesc); 262 } 263 rf_UpdateUserStats(raidPtr, RF_ETIMER_VAL_US(desc->timer), desc->numBlocks); 264 RF_UNLOCK_MUTEX(raidPtr->access_suspend_mutex); 265 266 desc->state++; 267 return RF_FALSE; 268 } 269 270 int 271 rf_State_Quiesce(RF_RaidAccessDesc_t * desc) 272 { 273 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 274 RF_Etimer_t timer; 275 int suspended = RF_FALSE; 276 RF_Raid_t *raidPtr; 277 278 raidPtr = desc->raidPtr; 279 280 RF_ETIMER_START(timer); 281 RF_ETIMER_START(desc->timer); 282 283 RF_LOCK_MUTEX(raidPtr->access_suspend_mutex); 284 if (raidPtr->accesses_suspended) { 285 RF_CallbackDesc_t *cb; 286 cb = rf_AllocCallbackDesc(); 287 /* XXX the following cast is quite bogus... 288 * rf_ContinueRaidAccess takes a (RF_RaidAccessDesc_t *) as an 289 * argument.. GO */ 290 cb->callbackFunc = (void (*) (RF_CBParam_t)) rf_ContinueRaidAccess; 291 cb->callbackArg.p = (void *) desc; 292 cb->next = raidPtr->quiesce_wait_list; 293 raidPtr->quiesce_wait_list = cb; 294 suspended = RF_TRUE; 295 } 296 RF_UNLOCK_MUTEX(raidPtr->access_suspend_mutex); 297 298 RF_ETIMER_STOP(timer); 299 RF_ETIMER_EVAL(timer); 300 tracerec->specific.user.suspend_ovhd_us += RF_ETIMER_VAL_US(timer); 301 302 #if RF_DEBUG_QUIESCE 303 if (suspended && rf_quiesceDebug) 304 printf("Stalling access due to quiescence lock\n"); 305 #endif 306 desc->state++; 307 return suspended; 308 } 309 310 int 311 rf_State_Map(RF_RaidAccessDesc_t * desc) 312 { 313 RF_Raid_t *raidPtr = desc->raidPtr; 314 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 315 RF_Etimer_t timer; 316 317 RF_ETIMER_START(timer); 318 319 if (!(desc->asmap = rf_MapAccess(raidPtr, desc->raidAddress, desc->numBlocks, 320 desc->bufPtr, RF_DONT_REMAP))) 321 RF_PANIC(); 322 323 RF_ETIMER_STOP(timer); 324 RF_ETIMER_EVAL(timer); 325 tracerec->specific.user.map_us = RF_ETIMER_VAL_US(timer); 326 327 desc->state++; 328 return RF_FALSE; 329 } 330 331 int 332 rf_State_Lock(RF_RaidAccessDesc_t * desc) 333 { 334 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 335 RF_Raid_t *raidPtr = desc->raidPtr; 336 RF_AccessStripeMapHeader_t *asmh = desc->asmap; 337 RF_AccessStripeMap_t *asm_p; 338 RF_Etimer_t timer; 339 int suspended = RF_FALSE; 340 341 RF_ETIMER_START(timer); 342 if (!(raidPtr->Layout.map->flags & RF_NO_STRIPE_LOCKS)) { 343 RF_StripeNum_t lastStripeID = -1; 344 345 /* acquire each lock that we don't already hold */ 346 for (asm_p = asmh->stripeMap; asm_p; asm_p = asm_p->next) { 347 RF_ASSERT(RF_IO_IS_R_OR_W(desc->type)); 348 if (!rf_suppressLocksAndLargeWrites && 349 asm_p->parityInfo && 350 !(desc->flags & RF_DAG_SUPPRESS_LOCKS) && 351 !(asm_p->flags & RF_ASM_FLAGS_LOCK_TRIED)) { 352 asm_p->flags |= RF_ASM_FLAGS_LOCK_TRIED; 353 RF_ASSERT(asm_p->stripeID > lastStripeID); /* locks must be 354 * acquired 355 * hierarchically */ 356 lastStripeID = asm_p->stripeID; 357 /* XXX the cast to (void (*)(RF_CBParam_t)) 358 * below is bogus! GO */ 359 RF_INIT_LOCK_REQ_DESC(asm_p->lockReqDesc, desc->type, 360 (void (*) (struct buf *)) rf_ContinueRaidAccess, desc, asm_p, 361 raidPtr->Layout.dataSectorsPerStripe); 362 if (rf_AcquireStripeLock(raidPtr->lockTable, asm_p->stripeID, 363 &asm_p->lockReqDesc)) { 364 suspended = RF_TRUE; 365 break; 366 } 367 } 368 if (desc->type == RF_IO_TYPE_WRITE && 369 raidPtr->status[asm_p->physInfo->row] == rf_rs_reconstructing) { 370 if (!(asm_p->flags & RF_ASM_FLAGS_FORCE_TRIED)) { 371 int val; 372 373 asm_p->flags |= RF_ASM_FLAGS_FORCE_TRIED; 374 /* XXX the cast below is quite 375 * bogus!!! XXX GO */ 376 val = rf_ForceOrBlockRecon(raidPtr, asm_p, 377 (void (*) (RF_Raid_t *, void *)) rf_ContinueRaidAccess, desc); 378 if (val == 0) { 379 asm_p->flags |= RF_ASM_FLAGS_RECON_BLOCKED; 380 } else { 381 suspended = RF_TRUE; 382 break; 383 } 384 } else { 385 if (rf_pssDebug) { 386 printf("raid%d: skipping force/block because already done, psid %ld\n", 387 desc->raidPtr->raidid, 388 (long) asm_p->stripeID); 389 } 390 } 391 } else { 392 if (rf_pssDebug) { 393 printf("raid%d: skipping force/block because not write or not under recon, psid %ld\n", 394 desc->raidPtr->raidid, 395 (long) asm_p->stripeID); 396 } 397 } 398 } 399 400 RF_ETIMER_STOP(timer); 401 RF_ETIMER_EVAL(timer); 402 tracerec->specific.user.lock_us += RF_ETIMER_VAL_US(timer); 403 404 if (suspended) 405 return (RF_TRUE); 406 } 407 desc->state++; 408 return (RF_FALSE); 409 } 410 /* 411 * the following three states create, execute, and post-process dags 412 * the error recovery unit is a single dag. 413 * by default, SelectAlgorithm creates an array of dags, one per parity stripe 414 * in some tricky cases, multiple dags per stripe are created 415 * - dags within a parity stripe are executed sequentially (arbitrary order) 416 * - dags for distinct parity stripes are executed concurrently 417 * 418 * repeat until all dags complete successfully -or- dag selection fails 419 * 420 * while !done 421 * create dag(s) (SelectAlgorithm) 422 * if dag 423 * execute dag (DispatchDAG) 424 * if dag successful 425 * done (SUCCESS) 426 * else 427 * !done (RETRY - start over with new dags) 428 * else 429 * done (FAIL) 430 */ 431 int 432 rf_State_CreateDAG(RF_RaidAccessDesc_t * desc) 433 { 434 RF_AccTraceEntry_t *tracerec = &desc->tracerec; 435 RF_Etimer_t timer; 436 RF_DagHeader_t *dag_h; 437 int i, selectStatus; 438 439 /* generate a dag for the access, and fire it off. When the dag 440 * completes, we'll get re-invoked in the next state. */ 441 RF_ETIMER_START(timer); 442 /* SelectAlgorithm returns one or more dags */ 443 selectStatus = rf_SelectAlgorithm(desc, desc->flags | RF_DAG_SUPPRESS_LOCKS); 444 #if RF_DEBUG_VALIDATE_DAG 445 if (rf_printDAGsDebug) 446 for (i = 0; i < desc->numStripes; i++) 447 rf_PrintDAGList(desc->dagArray[i].dags); 448 #endif /* RF_DEBUG_VALIDATE_DAG */ 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 i; 593 594 desc->state++; 595 596 timer = tracerec->timer; 597 RF_ETIMER_STOP(timer); 598 RF_ETIMER_EVAL(timer); 599 tracerec->specific.user.dag_retry_us = RF_ETIMER_VAL_US(timer); 600 601 /* the RAID I/O is complete. Clean up. */ 602 tracerec->specific.user.dag_retry_us = 0; 603 604 RF_ETIMER_START(timer); 605 if (desc->flags & RF_DAG_RETURN_DAG) { 606 /* copy dags into paramDAG */ 607 *(desc->paramDAG) = desc->dagArray[0].dags; 608 dag_h = *(desc->paramDAG); 609 for (i = 1; i < desc->numStripes; i++) { 610 /* concatenate dags from remaining stripes */ 611 RF_ASSERT(dag_h); 612 while (dag_h->next) 613 dag_h = dag_h->next; 614 dag_h->next = desc->dagArray[i].dags; 615 } 616 } else { 617 /* free all dags */ 618 for (i = 0; i < desc->numStripes; i++) { 619 rf_FreeDAG(desc->dagArray[i].dags); 620 } 621 } 622 623 RF_ETIMER_STOP(timer); 624 RF_ETIMER_EVAL(timer); 625 tracerec->specific.user.cleanup_us = RF_ETIMER_VAL_US(timer); 626 627 RF_ETIMER_START(timer); 628 if (!(raidPtr->Layout.map->flags & RF_NO_STRIPE_LOCKS)) { 629 for (asm_p = asmh->stripeMap; asm_p; asm_p = asm_p->next) { 630 if (!rf_suppressLocksAndLargeWrites && 631 asm_p->parityInfo && 632 !(desc->flags & RF_DAG_SUPPRESS_LOCKS)) { 633 RF_ASSERT_VALID_LOCKREQ(&asm_p->lockReqDesc); 634 rf_ReleaseStripeLock(raidPtr->lockTable, 635 asm_p->stripeID, 636 &asm_p->lockReqDesc); 637 } 638 if (asm_p->flags & RF_ASM_FLAGS_RECON_BLOCKED) { 639 rf_UnblockRecon(raidPtr, asm_p); 640 } 641 } 642 } 643 RF_ETIMER_STOP(timer); 644 RF_ETIMER_EVAL(timer); 645 tracerec->specific.user.lock_us += RF_ETIMER_VAL_US(timer); 646 647 RF_ETIMER_START(timer); 648 if (desc->flags & RF_DAG_RETURN_ASM) 649 *(desc->paramASM) = asmh; 650 else 651 rf_FreeAccessStripeMap(asmh); 652 RF_ETIMER_STOP(timer); 653 RF_ETIMER_EVAL(timer); 654 tracerec->specific.user.cleanup_us += RF_ETIMER_VAL_US(timer); 655 656 RF_ETIMER_STOP(desc->timer); 657 RF_ETIMER_EVAL(desc->timer); 658 659 timer = desc->tracerec.tot_timer; 660 RF_ETIMER_STOP(timer); 661 RF_ETIMER_EVAL(timer); 662 desc->tracerec.total_us = RF_ETIMER_VAL_US(timer); 663 664 rf_LogTraceRec(raidPtr, tracerec); 665 666 desc->flags |= RF_DAG_ACCESS_COMPLETE; 667 668 return RF_FALSE; 669 } 670