1 /*- 2 * Copyright (c) 1997, 1998, 1999 3 * Nan Yang Computer Services Limited. All rights reserved. 4 * 5 * Parts copyright (c) 1997, 1998 Cybernet Corporation, NetMAX project. 6 * 7 * Written by Greg Lehey 8 * 9 * This software is distributed under the so-called ``Berkeley 10 * License'': 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by Nan Yang Computer 23 * Services Limited. 24 * 4. Neither the name of the Company nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * This software is provided ``as is'', and any express or implied 29 * warranties, including, but not limited to, the implied warranties of 30 * merchantability and fitness for a particular purpose are disclaimed. 31 * In no event shall the company or contributors be liable for any 32 * direct, indirect, incidental, special, exemplary, or consequential 33 * damages (including, but not limited to, procurement of substitute 34 * goods or services; loss of use, data, or profits; or business 35 * interruption) however caused and on any theory of liability, whether 36 * in contract, strict liability, or tort (including negligence or 37 * otherwise) arising in any way out of the use of this software, even if 38 * advised of the possibility of such damage. 39 * 40 * $Id: vinumrevive.c,v 1.14 2000/12/21 01:55:11 grog Exp grog $ 41 * $FreeBSD: src/sys/dev/vinum/vinumrevive.c,v 1.22.2.5 2001/03/13 02:59:43 grog Exp $ 42 * $DragonFly: src/sys/dev/raid/vinum/vinumrevive.c,v 1.15 2006/12/22 23:26:24 swildner Exp $ 43 */ 44 45 #include "vinumhdr.h" 46 #include "request.h" 47 48 /* 49 * Revive a block of a subdisk. Return an error 50 * indication. EAGAIN means successful copy, but 51 * that more blocks remain to be copied. EINVAL 52 * means that the subdisk isn't associated with a 53 * plex (which means a programming error if we get 54 * here at all; FIXME). 55 */ 56 57 int 58 revive_block(int sdno) 59 { 60 struct sd *sd; 61 struct plex *plex; 62 struct volume *vol; 63 struct buf *bp; 64 cdev_t dev; 65 int error = EAGAIN; 66 int size; /* size of revive block, bytes */ 67 vinum_off_t plexblkno; /* lblkno in plex */ 68 int psd; /* parity subdisk number */ 69 u_int64_t stripe; /* stripe number */ 70 int paritysd = 0; /* set if this is the parity stripe */ 71 struct rangelock *lock; /* for locking */ 72 vinum_off_t stripeoffset; /* offset in stripe */ 73 74 plexblkno = 0; /* to keep the compiler happy */ 75 sd = &SD[sdno]; 76 lock = NULL; 77 if (sd->plexno < 0) /* no plex? */ 78 return EINVAL; 79 plex = &PLEX[sd->plexno]; /* point to plex */ 80 if (plex->volno >= 0) 81 vol = &VOL[plex->volno]; 82 else 83 vol = NULL; 84 85 if ((sd->revive_blocksize == 0) /* no block size */ 86 ||(sd->revive_blocksize & ((1 << DEV_BSHIFT) - 1))) /* or invalid block size */ 87 sd->revive_blocksize = DEFAULT_REVIVE_BLOCKSIZE; 88 else if (sd->revive_blocksize > MAX_REVIVE_BLOCKSIZE) 89 sd->revive_blocksize = MAX_REVIVE_BLOCKSIZE; 90 size = u64min(sd->revive_blocksize >> DEV_BSHIFT, sd->sectors - sd->revived) << DEV_BSHIFT; 91 sd->reviver = curproc->p_pid; /* note who last had a bash at it */ 92 93 /* Now decide where to read from */ 94 switch (plex->organization) { 95 case plex_concat: 96 plexblkno = sd->revived + sd->plexoffset; /* corresponding address in plex */ 97 break; 98 99 case plex_striped: 100 stripeoffset = sd->revived % plex->stripesize; /* offset from beginning of stripe */ 101 if (stripeoffset + (size >> DEV_BSHIFT) > plex->stripesize) 102 size = (plex->stripesize - stripeoffset) << DEV_BSHIFT; 103 plexblkno = sd->plexoffset /* base */ 104 + (sd->revived - stripeoffset) * plex->subdisks /* offset to beginning of stripe */ 105 + stripeoffset; /* offset from beginning of stripe */ 106 break; 107 108 case plex_raid4: 109 case plex_raid5: 110 stripeoffset = sd->revived % plex->stripesize; /* offset from beginning of stripe */ 111 plexblkno = sd->plexoffset /* base */ 112 + (sd->revived - stripeoffset) * (plex->subdisks - 1) /* offset to beginning of stripe */ 113 +stripeoffset; /* offset from beginning of stripe */ 114 stripe = (sd->revived / plex->stripesize); /* stripe number */ 115 116 /* Make sure we don't go beyond the end of the band. */ 117 size = u64min(size, (plex->stripesize - stripeoffset) << DEV_BSHIFT); 118 if (plex->organization == plex_raid4) 119 psd = plex->subdisks - 1; /* parity subdisk for this stripe */ 120 else 121 psd = plex->subdisks - 1 - stripe % plex->subdisks; /* parity subdisk for this stripe */ 122 paritysd = plex->sdnos[psd] == sdno; /* note if it's the parity subdisk */ 123 124 /* 125 * Now adjust for the strangenesses 126 * in RAID-4 and RAID-5 striping. 127 */ 128 if (sd->plexsdno > psd) /* beyond the parity stripe, */ 129 plexblkno -= plex->stripesize; /* one stripe less */ 130 else if (paritysd) 131 plexblkno -= plex->stripesize * sd->plexsdno; /* go back to the beginning of the band */ 132 break; 133 134 case plex_disorg: /* to keep the compiler happy */ 135 break; 136 } 137 138 if (paritysd) { /* we're reviving a parity block, */ 139 bp = parityrebuild(plex, sd->revived, size, rebuildparity, &lock, NULL); /* do the grunt work */ 140 if (bp == NULL) /* no buffer space */ 141 return ENOMEM; /* chicken out */ 142 } else { /* data block */ 143 bp = getpbuf(&vinum_conf.physbufs); /* Get a buffer */ 144 bp->b_data = Malloc(size); 145 146 /* 147 * Amount to transfer: block size, unless it 148 * would overlap the end. 149 */ 150 bp->b_bcount = size; 151 bp->b_resid = bp->b_bcount; 152 bp->b_bio1.bio_offset = (off_t)plexblkno << DEV_BSHIFT; /* start here */ 153 bp->b_bio1.bio_done = biodone_sync; 154 bp->b_bio1.bio_flags |= BIO_SYNC; 155 if (isstriped(plex)) /* we need to lock striped plexes */ 156 lock = lockrange(plexblkno << DEV_BSHIFT, bp, plex); /* lock it */ 157 if (vol != NULL) /* it's part of a volume, */ 158 /* 159 * First, read the data from the volume. We 160 * don't care which plex, that's bre's job. 161 */ 162 dev = vol->vol_dev; 163 else /* it's an unattached plex */ 164 dev = PLEX[sd->plexno].plex_dev; 165 166 bp->b_cmd = BUF_CMD_READ; 167 vinumstart(dev, &bp->b_bio1, 1); 168 biowait(&bp->b_bio1, "drvrd"); 169 } 170 171 if (bp->b_flags & B_ERROR) 172 error = bp->b_error; 173 else 174 /* Now write to the subdisk */ 175 { 176 dev = SD[sdno].sd_dev; 177 KKASSERT(dev != NULL); 178 bp->b_flags |= B_ORDERED; /* and make this an ordered write */ 179 bp->b_cmd = BUF_CMD_WRITE; 180 bp->b_resid = bp->b_bcount; 181 bp->b_bio1.bio_offset = (off_t)sd->revived << DEV_BSHIFT; /* write it to here */ 182 bp->b_bio1.bio_driver_info = dev; 183 bp->b_bio1.bio_done = biodone_sync; 184 sdio(&bp->b_bio1); /* perform the I/O */ 185 biowait(&bp->b_bio1, "drvwr"); 186 if (bp->b_flags & B_ERROR) 187 error = bp->b_error; 188 else { 189 sd->revived += bp->b_bcount >> DEV_BSHIFT; /* moved this much further down */ 190 if (sd->revived >= sd->sectors) { /* finished */ 191 sd->revived = 0; 192 set_sd_state(sdno, sd_up, setstate_force); /* bring the sd up */ 193 log(LOG_INFO, "vinum: %s is %s\n", sd->name, sd_state(sd->state)); 194 save_config(); /* and save the updated configuration */ 195 error = 0; /* we're done */ 196 } 197 } 198 if (lock) /* we took a lock, */ 199 unlockrange(sd->plexno, lock); /* give it back */ 200 while (sd->waitlist) { /* we have waiting requests */ 201 #if VINUMDEBUG 202 struct request *rq = sd->waitlist; 203 cdev_t dev; 204 205 if (debug & DEBUG_REVIVECONFLICT) { 206 dev = rq->bio->bio_driver_info; 207 log(LOG_DEBUG, 208 "Relaunch revive conflict sd %d: %p\n%s dev %d.%d, offset 0x%llx, length %d\n", 209 rq->sdno, 210 rq, 211 (rq->bio->bio_buf->b_cmd == BUF_CMD_READ) ? "Read" : "Write", 212 major(dev), 213 minor(dev), 214 rq->bio->bio_offset, 215 rq->bio->bio_buf->b_bcount); 216 } 217 #endif 218 launch_requests(sd->waitlist, 1); /* do them now */ 219 sd->waitlist = sd->waitlist->next; /* and move on to the next */ 220 } 221 } 222 Free(bp->b_data); 223 relpbuf(bp, &vinum_conf.physbufs); 224 return error; 225 } 226 227 /* 228 * Check or rebuild the parity blocks of a RAID-4 229 * or RAID-5 plex. 230 * 231 * The variables plex->checkblock and 232 * plex->rebuildblock represent the 233 * subdisk-relative address of the stripe we're 234 * looking at, not the plex-relative address. We 235 * store it in the plex and not as a local 236 * variable because this function could be 237 * stopped, and we don't want to repeat the part 238 * we've already done. This is also the reason 239 * why we don't initialize it here except at the 240 * end. It gets initialized with the plex on 241 * creation. 242 * 243 * Each call to this function processes at most 244 * one stripe. We can't loop in this function, 245 * because we're unstoppable, so we have to be 246 * called repeatedly from userland. 247 */ 248 void 249 parityops(struct vinum_ioctl_msg *data) 250 { 251 int plexno; 252 struct plex *plex; 253 int size; /* I/O transfer size, bytes */ 254 vinum_off_t stripe; /* stripe number in plex */ 255 int psd; /* parity subdisk number */ 256 struct rangelock *lock; /* lock on stripe */ 257 struct _ioctl_reply *reply; 258 off_t pstripe; /* pointer to our stripe counter */ 259 struct buf *pbp; 260 off_t errorloc; /* offset of parity error */ 261 enum parityop op; /* operation to perform */ 262 263 plexno = data->index; 264 op = data->op; 265 pbp = NULL; 266 reply = (struct _ioctl_reply *) data; 267 reply->error = EAGAIN; /* expect to repeat this call */ 268 plex = &PLEX[plexno]; 269 if (!isparity(plex)) { /* not RAID-4 or RAID-5 */ 270 reply->error = EINVAL; 271 return; 272 } else if (plex->state < plex_flaky) { 273 reply->error = EIO; 274 strcpy(reply->msg, "Plex is not completely accessible\n"); 275 return; 276 } 277 pstripe = data->offset; 278 stripe = pstripe / plex->stripesize; /* stripe number */ 279 psd = plex->subdisks - 1 - stripe % plex->subdisks; /* parity subdisk for this stripe */ 280 size = imin(DEFAULT_REVIVE_BLOCKSIZE, /* one block at a time */ 281 plex->stripesize << DEV_BSHIFT); 282 283 pbp = parityrebuild(plex, pstripe, size, op, &lock, &errorloc); /* do the grunt work */ 284 if (pbp == NULL) { /* no buffer space */ 285 reply->error = ENOMEM; 286 return; /* chicken out */ 287 } 288 /* 289 * Now we have a result in the data buffer of 290 * the parity buffer header, which we have kept. 291 * Decide what to do with it. 292 */ 293 reply->msg[0] = '\0'; /* until shown otherwise */ 294 if ((pbp->b_flags & B_ERROR) == 0) { /* no error */ 295 if ((op == rebuildparity) 296 || (op == rebuildandcheckparity)) { 297 pbp->b_cmd = BUF_CMD_WRITE; 298 pbp->b_resid = pbp->b_bcount; 299 pbp->b_bio1.bio_done = biodone_sync; 300 sdio(&pbp->b_bio1); /* write the parity block */ 301 biowait(&pbp->b_bio1, "drvwr"); 302 } 303 if (((op == checkparity) 304 || (op == rebuildandcheckparity)) 305 && (errorloc != -1)) { 306 if (op == checkparity) 307 reply->error = EIO; 308 ksprintf(reply->msg, 309 "Parity incorrect at offset 0x%llx\n", 310 (long long)errorloc); 311 } 312 if (reply->error == EAGAIN) { /* still OK, */ 313 plex->checkblock = pstripe + (pbp->b_bcount >> DEV_BSHIFT); /* moved this much further down */ 314 if (plex->checkblock >= SD[plex->sdnos[0]].sectors) { /* finished */ 315 plex->checkblock = 0; 316 reply->error = 0; 317 } 318 } 319 } 320 if (pbp->b_flags & B_ERROR) 321 reply->error = pbp->b_error; 322 Free(pbp->b_data); 323 relpbuf(pbp, &vinum_conf.physbufs); 324 unlockrange(plexno, lock); 325 } 326 327 /* 328 * Rebuild a parity stripe. Return pointer to 329 * parity bp. On return, 330 * 331 * 1. The band is locked. The caller must unlock 332 * the band and release the buffer header. 333 * 334 * 2. All buffer headers except php have been 335 * released. The caller must release pbp. 336 * 337 * 3. For checkparity and rebuildandcheckparity, 338 * the parity is compared with the current 339 * parity block. If it's different, the 340 * offset of the error is returned to 341 * errorloc. The caller can set the value of 342 * the pointer to NULL if this is called for 343 * rebuilding parity. 344 * 345 * pstripe is the subdisk-relative base address of 346 * the data to be reconstructed, size is the size 347 * of the transfer in bytes. 348 */ 349 struct buf * 350 parityrebuild(struct plex *plex, 351 vinum_off_t pstripe, 352 int size, 353 enum parityop op, 354 struct rangelock **lockp, 355 off_t * errorloc) 356 { 357 int error; 358 int sdno; 359 u_int64_t stripe; /* stripe number */ 360 int *parity_buf; /* buffer address for current parity block */ 361 int *newparity_buf; /* and for new parity block */ 362 int mysize; /* I/O transfer size for this transfer */ 363 int isize; /* mysize in ints */ 364 int i; 365 int psd; /* parity subdisk number */ 366 int newpsd; /* and "subdisk number" of new parity */ 367 struct buf **bpp; /* pointers to our bps */ 368 struct buf *pbp; /* buffer header for parity stripe */ 369 int *sbuf; 370 int bufcount; /* number of buffers we need */ 371 372 stripe = pstripe / plex->stripesize; /* stripe number */ 373 psd = plex->subdisks - 1 - stripe % plex->subdisks; /* parity subdisk for this stripe */ 374 parity_buf = NULL; /* to keep the compiler happy */ 375 error = 0; 376 377 /* 378 * It's possible that the default transfer size 379 * we chose is not a factor of the stripe size. 380 * We *must* limit this operation to a single 381 * stripe, at least for RAID-5 rebuild, since 382 * the parity subdisk changes between stripes, 383 * so in this case we need to perform a short 384 * transfer. Set variable mysize to reflect 385 * this. 386 */ 387 mysize = u64min(size, (plex->stripesize * (stripe + 1) - pstripe) << DEV_BSHIFT); 388 isize = mysize / (sizeof(int)); /* number of ints in the buffer */ 389 bufcount = plex->subdisks + 1; /* sd buffers plus result buffer */ 390 newpsd = plex->subdisks; 391 bpp = (struct buf **) Malloc(bufcount * sizeof(struct buf *)); /* array of pointers to bps */ 392 393 /* First, build requests for all subdisks */ 394 for (sdno = 0; sdno < bufcount; sdno++) { /* for each subdisk */ 395 if ((sdno != psd) || (op != rebuildparity)) { 396 /* Get a buffer header and initialize it. */ 397 bpp[sdno] = getpbuf(&vinum_conf.physbufs); /* Get a buffer */ 398 bpp[sdno]->b_data = Malloc(mysize); 399 if (sdno == psd) 400 parity_buf = (int *) bpp[sdno]->b_data; 401 if (sdno == newpsd) /* the new one? */ 402 bpp[sdno]->b_bio1.bio_driver_info = SD[plex->sdnos[psd]].sd_dev; /* write back to the parity SD */ 403 else 404 bpp[sdno]->b_bio1.bio_driver_info = SD[plex->sdnos[sdno]].sd_dev; /* device number */ 405 KKASSERT(bpp[sdno]->b_bio1.bio_driver_info); 406 bpp[sdno]->b_cmd = BUF_CMD_READ; /* either way, read it */ 407 bpp[sdno]->b_bcount = mysize; 408 bpp[sdno]->b_resid = bpp[sdno]->b_bcount; 409 bpp[sdno]->b_bio1.bio_offset = (off_t)pstripe << DEV_BSHIFT; /* transfer from here */ 410 bpp[sdno]->b_bio1.bio_done = biodone_sync; 411 } 412 } 413 414 /* Initialize result buffer */ 415 pbp = bpp[newpsd]; 416 newparity_buf = (int *) bpp[newpsd]->b_data; 417 bzero(newparity_buf, mysize); 418 419 /* 420 * Now lock the stripe with the first non-parity 421 * bp as locking bp. 422 */ 423 *lockp = lockrange(pstripe * plex->stripesize * (plex->subdisks - 1), 424 bpp[psd ? 0 : 1], 425 plex); 426 427 /* 428 * Then issue requests for all subdisks in 429 * parallel. Don't transfer the parity stripe 430 * if we're rebuilding parity, unless we also 431 * want to check it. 432 */ 433 for (sdno = 0; sdno < plex->subdisks; sdno++) { /* for each real subdisk */ 434 if ((sdno != psd) || (op != rebuildparity)) { 435 sdio(&bpp[sdno]->b_bio1); 436 } 437 } 438 439 /* 440 * Next, wait for the requests to complete. 441 * We wait in the order in which they were 442 * issued, which isn't necessarily the order in 443 * which they complete, but we don't have a 444 * convenient way of doing the latter, and the 445 * delay is minimal. 446 */ 447 for (sdno = 0; sdno < plex->subdisks; sdno++) { /* for each subdisk */ 448 if ((sdno != psd) || (op != rebuildparity)) { 449 biowait(&bpp[sdno]->b_bio1, "drvio"); 450 if (bpp[sdno]->b_flags & B_ERROR) /* can't read, */ 451 error = bpp[sdno]->b_error; 452 else if (sdno != psd) { /* update parity */ 453 sbuf = (int *) bpp[sdno]->b_data; 454 for (i = 0; i < isize; i++) 455 ((int *) newparity_buf)[i] ^= sbuf[i]; /* xor in the buffer */ 456 } 457 } 458 if (sdno != psd) { /* release all bps except parity */ 459 Free(bpp[sdno]->b_data); 460 relpbuf(bpp[sdno], &vinum_conf.physbufs); /* give back our resources */ 461 } 462 } 463 464 /* 465 * If we're checking, compare the calculated 466 * and the read parity block. If they're 467 * different, return the plex-relative offset; 468 * otherwise return -1. 469 */ 470 if ((op == checkparity) 471 || (op == rebuildandcheckparity)) { 472 *errorloc = -1; /* no error yet */ 473 for (i = 0; i < isize; i++) { 474 if (parity_buf[i] != newparity_buf[i]) { 475 *errorloc = (off_t) (pstripe << DEV_BSHIFT) * (plex->subdisks - 1) 476 + i * sizeof(int); 477 break; 478 } 479 } 480 Free(bpp[psd]->b_data); 481 relpbuf(bpp[psd], &vinum_conf.physbufs); /* give back our resources */ 482 } 483 /* release our resources */ 484 Free(bpp); 485 if (error) { 486 pbp->b_flags |= B_ERROR; 487 pbp->b_error = error; 488 } 489 return pbp; 490 } 491 492 /* 493 * Initialize a subdisk by writing zeroes to the 494 * complete address space. If verify is set, 495 * check each transfer for correctness. 496 * 497 * Each call to this function writes (and maybe 498 * checks) a single block. 499 */ 500 int 501 initsd(int sdno, int verify) 502 { 503 struct sd *sd; 504 struct plex *plex; 505 struct volume *vol; 506 struct buf *bp; 507 int error; 508 int size; /* size of init block, bytes */ 509 vinum_off_t plexblkno; /* lblkno in plex */ 510 int verified; /* set when we're happy with what we wrote */ 511 512 error = 0; 513 plexblkno = 0; /* to keep the compiler happy */ 514 sd = &SD[sdno]; 515 if (sd->plexno < 0) /* no plex? */ 516 return EINVAL; 517 plex = &PLEX[sd->plexno]; /* point to plex */ 518 if (plex->volno >= 0) 519 vol = &VOL[plex->volno]; 520 else 521 vol = NULL; 522 523 if (sd->init_blocksize == 0) { 524 if (plex->stripesize != 0) /* we're striped, don't init more than */ 525 sd->init_blocksize = u64min(DEFAULT_REVIVE_BLOCKSIZE, /* one block at a time */ 526 plex->stripesize << DEV_BSHIFT); 527 else 528 sd->init_blocksize = DEFAULT_REVIVE_BLOCKSIZE; 529 } else if (sd->init_blocksize > MAX_REVIVE_BLOCKSIZE) 530 sd->init_blocksize = MAX_REVIVE_BLOCKSIZE; 531 532 size = u64min(sd->init_blocksize >> DEV_BSHIFT, sd->sectors - sd->initialized) << DEV_BSHIFT; 533 534 bp = getpbuf(&vinum_conf.physbufs); /* Get a buffer */ 535 bp->b_data = Malloc(size); 536 537 verified = 0; 538 while (!verified) { /* until we're happy with it, */ 539 bp->b_bcount = size; 540 bp->b_resid = bp->b_bcount; 541 bp->b_bio1.bio_offset = (off_t)sd->initialized << DEV_BSHIFT; /* write it to here */ 542 bp->b_bio1.bio_driver_info = SD[sdno].sd_dev; 543 bp->b_bio1.bio_done = biodone_sync; 544 KKASSERT(bp->b_bio1.bio_driver_info); 545 bzero(bp->b_data, bp->b_bcount); 546 bp->b_cmd = BUF_CMD_WRITE; 547 sdio(&bp->b_bio1); /* perform the I/O */ 548 biowait(&bp->b_bio1, "drvwr"); 549 if (bp->b_flags & B_ERROR) 550 error = bp->b_error; 551 if ((error == 0) && verify) { /* check that it got there */ 552 bp->b_bcount = size; 553 bp->b_resid = bp->b_bcount; 554 bp->b_bio1.bio_offset = (off_t)sd->initialized << DEV_BSHIFT; /* read from here */ 555 bp->b_bio1.bio_driver_info = SD[sdno].sd_dev; 556 bp->b_bio1.bio_done = biodone_sync; 557 KKASSERT(bp->b_bio1.bio_driver_info); 558 bp->b_cmd = BUF_CMD_READ; /* read it back */ 559 sdio(&bp->b_bio1); 560 biowait(&bp->b_bio1, "drvrd"); 561 /* 562 * XXX Bug fix code. This is hopefully no 563 * longer needed (21 February 2000). 564 */ 565 if (bp->b_flags & B_ERROR) 566 error = bp->b_error; 567 else if ((*bp->b_data != 0) /* first word spammed */ 568 ||(bcmp(bp->b_data, &bp->b_data[1], bp->b_bcount - 1))) { /* or one of the others */ 569 kprintf("vinum: init error on %s, offset 0x%llx sectors\n", 570 sd->name, 571 (long long) sd->initialized); 572 verified = 0; 573 } else 574 verified = 1; 575 } else 576 verified = 1; 577 } 578 Free(bp->b_data); 579 relpbuf(bp, &vinum_conf.physbufs); 580 if (error == 0) { /* did it, */ 581 sd->initialized += size >> DEV_BSHIFT; /* moved this much further down */ 582 if (sd->initialized >= sd->sectors) { /* finished */ 583 sd->initialized = 0; 584 set_sd_state(sdno, sd_initialized, setstate_force); /* bring the sd up */ 585 log(LOG_INFO, "vinum: %s is %s\n", sd->name, sd_state(sd->state)); 586 save_config(); /* and save the updated configuration */ 587 } else /* more to go, */ 588 error = EAGAIN; /* ya'll come back, see? */ 589 } 590 return error; 591 } 592 593 /* Local Variables: */ 594 /* fill-column: 50 */ 595 /* End: */ 596