1 /*- 2 * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 #include <sys/lock.h> 35 #include <sys/mutex.h> 36 #include <sys/bio.h> 37 #include <sys/sysctl.h> 38 #include <sys/malloc.h> 39 #include <sys/bitstring.h> 40 #include <vm/uma.h> 41 #include <machine/atomic.h> 42 #include <geom/geom.h> 43 #include <sys/proc.h> 44 #include <sys/kthread.h> 45 #include <geom/mirror/g_mirror.h> 46 47 48 static struct g_mirror_softc * 49 g_mirror_find_device(struct g_class *mp, const char *name) 50 { 51 struct g_mirror_softc *sc; 52 struct g_geom *gp; 53 54 g_topology_lock(); 55 LIST_FOREACH(gp, &mp->geom, geom) { 56 sc = gp->softc; 57 if (sc == NULL) 58 continue; 59 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_DESTROY) != 0) 60 continue; 61 if (strcmp(gp->name, name) == 0 || 62 strcmp(sc->sc_name, name) == 0) { 63 g_topology_unlock(); 64 sx_xlock(&sc->sc_lock); 65 return (sc); 66 } 67 } 68 g_topology_unlock(); 69 return (NULL); 70 } 71 72 static struct g_mirror_disk * 73 g_mirror_find_disk(struct g_mirror_softc *sc, const char *name) 74 { 75 struct g_mirror_disk *disk; 76 77 sx_assert(&sc->sc_lock, SX_XLOCKED); 78 LIST_FOREACH(disk, &sc->sc_disks, d_next) { 79 if (disk->d_consumer == NULL) 80 continue; 81 if (disk->d_consumer->provider == NULL) 82 continue; 83 if (strcmp(disk->d_consumer->provider->name, name) == 0) 84 return (disk); 85 } 86 return (NULL); 87 } 88 89 static void 90 g_mirror_ctl_configure(struct gctl_req *req, struct g_class *mp) 91 { 92 struct g_mirror_softc *sc; 93 struct g_mirror_disk *disk; 94 const char *name, *balancep; 95 intmax_t *slicep; 96 uint32_t slice; 97 uint8_t balance; 98 int *nargs, *autosync, *noautosync, *hardcode, *dynamic, do_sync = 0; 99 100 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 101 if (nargs == NULL) { 102 gctl_error(req, "No '%s' argument.", "nargs"); 103 return; 104 } 105 if (*nargs != 1) { 106 gctl_error(req, "Invalid number of arguments."); 107 return; 108 } 109 name = gctl_get_asciiparam(req, "arg0"); 110 if (name == NULL) { 111 gctl_error(req, "No 'arg%u' argument.", 0); 112 return; 113 } 114 balancep = gctl_get_asciiparam(req, "balance"); 115 if (balancep == NULL) { 116 gctl_error(req, "No '%s' argument.", "balance"); 117 return; 118 } 119 autosync = gctl_get_paraml(req, "autosync", sizeof(*autosync)); 120 if (autosync == NULL) { 121 gctl_error(req, "No '%s' argument.", "autosync"); 122 return; 123 } 124 noautosync = gctl_get_paraml(req, "noautosync", sizeof(*noautosync)); 125 if (noautosync == NULL) { 126 gctl_error(req, "No '%s' argument.", "noautosync"); 127 return; 128 } 129 hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode)); 130 if (hardcode == NULL) { 131 gctl_error(req, "No '%s' argument.", "hardcode"); 132 return; 133 } 134 dynamic = gctl_get_paraml(req, "dynamic", sizeof(*dynamic)); 135 if (dynamic == NULL) { 136 gctl_error(req, "No '%s' argument.", "dynamic"); 137 return; 138 } 139 if (*autosync && *noautosync) { 140 gctl_error(req, "'%s' and '%s' specified.", "autosync", 141 "noautosync"); 142 return; 143 } 144 if (*hardcode && *dynamic) { 145 gctl_error(req, "'%s' and '%s' specified.", "hardcode", 146 "dynamic"); 147 return; 148 } 149 sc = g_mirror_find_device(mp, name); 150 if (sc == NULL) { 151 gctl_error(req, "No such device: %s.", name); 152 return; 153 } 154 if (strcmp(balancep, "none") == 0) 155 balance = sc->sc_balance; 156 else { 157 if (balance_id(balancep) == -1) { 158 gctl_error(req, "Invalid balance algorithm."); 159 sx_xunlock(&sc->sc_lock); 160 return; 161 } 162 balance = balance_id(balancep); 163 } 164 slicep = gctl_get_paraml(req, "slice", sizeof(*slicep)); 165 if (slicep == NULL) { 166 gctl_error(req, "No '%s' argument.", "slice"); 167 sx_xunlock(&sc->sc_lock); 168 return; 169 } 170 if (*slicep == -1) 171 slice = sc->sc_slice; 172 else 173 slice = *slicep; 174 if (g_mirror_ndisks(sc, -1) < sc->sc_ndisks) { 175 sx_xunlock(&sc->sc_lock); 176 gctl_error(req, "Not all disks connected. Try 'forget' command " 177 "first."); 178 return; 179 } 180 if (sc->sc_balance == balance && sc->sc_slice == slice && !*autosync && 181 !*noautosync && !*hardcode && !*dynamic) { 182 sx_xunlock(&sc->sc_lock); 183 gctl_error(req, "Nothing has changed."); 184 return; 185 } 186 sc->sc_balance = balance; 187 sc->sc_slice = slice; 188 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_NOAUTOSYNC) != 0) { 189 if (*autosync) { 190 sc->sc_flags &= ~G_MIRROR_DEVICE_FLAG_NOAUTOSYNC; 191 do_sync = 1; 192 } 193 } else { 194 if (*noautosync) 195 sc->sc_flags |= G_MIRROR_DEVICE_FLAG_NOAUTOSYNC; 196 } 197 LIST_FOREACH(disk, &sc->sc_disks, d_next) { 198 if (do_sync) { 199 if (disk->d_state == G_MIRROR_DISK_STATE_SYNCHRONIZING) 200 disk->d_flags &= ~G_MIRROR_DISK_FLAG_FORCE_SYNC; 201 } 202 if (*hardcode) 203 disk->d_flags |= G_MIRROR_DISK_FLAG_HARDCODED; 204 else if (*dynamic) 205 disk->d_flags &= ~G_MIRROR_DISK_FLAG_HARDCODED; 206 g_mirror_update_metadata(disk); 207 if (do_sync) { 208 if (disk->d_state == G_MIRROR_DISK_STATE_STALE) { 209 g_mirror_event_send(disk, 210 G_MIRROR_DISK_STATE_DISCONNECTED, 211 G_MIRROR_EVENT_DONTWAIT); 212 } 213 } 214 } 215 sx_xunlock(&sc->sc_lock); 216 } 217 218 static void 219 g_mirror_ctl_rebuild(struct gctl_req *req, struct g_class *mp) 220 { 221 struct g_mirror_metadata md; 222 struct g_mirror_softc *sc; 223 struct g_mirror_disk *disk; 224 struct g_provider *pp; 225 const char *name; 226 char param[16]; 227 int error, *nargs; 228 u_int i; 229 230 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 231 if (nargs == NULL) { 232 gctl_error(req, "No '%s' argument.", "nargs"); 233 return; 234 } 235 if (*nargs < 2) { 236 gctl_error(req, "Too few arguments."); 237 return; 238 } 239 name = gctl_get_asciiparam(req, "arg0"); 240 if (name == NULL) { 241 gctl_error(req, "No 'arg%u' argument.", 0); 242 return; 243 } 244 sc = g_mirror_find_device(mp, name); 245 if (sc == NULL) { 246 gctl_error(req, "No such device: %s.", name); 247 return; 248 } 249 for (i = 1; i < (u_int)*nargs; i++) { 250 snprintf(param, sizeof(param), "arg%u", i); 251 name = gctl_get_asciiparam(req, param); 252 if (name == NULL) { 253 gctl_error(req, "No 'arg%u' argument.", i); 254 continue; 255 } 256 disk = g_mirror_find_disk(sc, name); 257 if (disk == NULL) { 258 gctl_error(req, "No such provider: %s.", name); 259 continue; 260 } 261 if (g_mirror_ndisks(sc, G_MIRROR_DISK_STATE_ACTIVE) == 1 && 262 disk->d_state == G_MIRROR_DISK_STATE_ACTIVE) { 263 /* 264 * This is the last active disk. There will be nothing 265 * to rebuild it from, so deny this request. 266 */ 267 gctl_error(req, 268 "Provider %s is the last active provider in %s.", 269 name, sc->sc_geom->name); 270 break; 271 } 272 /* 273 * Do rebuild by resetting syncid, disconnecting the disk and 274 * connecting it again. 275 */ 276 disk->d_sync.ds_syncid = 0; 277 if ((sc->sc_flags & G_MIRROR_DEVICE_FLAG_NOAUTOSYNC) != 0) 278 disk->d_flags |= G_MIRROR_DISK_FLAG_FORCE_SYNC; 279 g_mirror_update_metadata(disk); 280 pp = disk->d_consumer->provider; 281 g_topology_lock(); 282 error = g_mirror_read_metadata(disk->d_consumer, &md); 283 g_topology_unlock(); 284 g_mirror_event_send(disk, G_MIRROR_DISK_STATE_DISCONNECTED, 285 G_MIRROR_EVENT_WAIT); 286 if (error != 0) { 287 gctl_error(req, "Cannot read metadata from %s.", 288 pp->name); 289 continue; 290 } 291 error = g_mirror_add_disk(sc, pp, &md); 292 if (error != 0) { 293 gctl_error(req, "Cannot reconnect component %s.", 294 pp->name); 295 continue; 296 } 297 } 298 sx_xunlock(&sc->sc_lock); 299 } 300 301 static void 302 g_mirror_ctl_insert(struct gctl_req *req, struct g_class *mp) 303 { 304 struct g_mirror_softc *sc; 305 struct g_mirror_disk *disk; 306 struct g_mirror_metadata md; 307 struct g_provider *pp; 308 struct g_consumer *cp; 309 intmax_t *priority; 310 const char *name; 311 char param[16]; 312 u_char *sector; 313 u_int i, n; 314 int error, *nargs, *hardcode, *inactive; 315 struct { 316 struct g_provider *provider; 317 struct g_consumer *consumer; 318 } *disks; 319 320 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 321 if (nargs == NULL) { 322 gctl_error(req, "No '%s' argument.", "nargs"); 323 return; 324 } 325 if (*nargs < 2) { 326 gctl_error(req, "Too few arguments."); 327 return; 328 } 329 priority = gctl_get_paraml(req, "priority", sizeof(*priority)); 330 if (priority == NULL) { 331 gctl_error(req, "No '%s' argument.", "priority"); 332 return; 333 } 334 inactive = gctl_get_paraml(req, "inactive", sizeof(*inactive)); 335 if (inactive == NULL) { 336 gctl_error(req, "No '%s' argument.", "inactive"); 337 return; 338 } 339 hardcode = gctl_get_paraml(req, "hardcode", sizeof(*hardcode)); 340 if (hardcode == NULL) { 341 gctl_error(req, "No '%s' argument.", "hardcode"); 342 return; 343 } 344 name = gctl_get_asciiparam(req, "arg0"); 345 if (name == NULL) { 346 gctl_error(req, "No 'arg%u' argument.", 0); 347 return; 348 } 349 sc = g_mirror_find_device(mp, name); 350 if (sc == NULL) { 351 gctl_error(req, "No such device: %s.", name); 352 return; 353 } 354 if (g_mirror_ndisks(sc, -1) < sc->sc_ndisks) { 355 gctl_error(req, "Not all disks connected."); 356 sx_xunlock(&sc->sc_lock); 357 return; 358 } 359 360 disks = g_malloc(sizeof(*disks) * (*nargs), M_WAITOK | M_ZERO); 361 g_topology_lock(); 362 for (i = 1, n = 0; i < (u_int)*nargs; i++) { 363 snprintf(param, sizeof(param), "arg%u", i); 364 name = gctl_get_asciiparam(req, param); 365 if (name == NULL) { 366 gctl_error(req, "No 'arg%u' argument.", i); 367 continue; 368 } 369 if (strncmp(name, "/dev/", strlen("/dev/")) == 0) 370 name += strlen("/dev/"); 371 if (g_mirror_find_disk(sc, name) != NULL) { 372 gctl_error(req, "Provider %s already inserted.", name); 373 continue; 374 } 375 pp = g_provider_by_name(name); 376 if (pp == NULL) { 377 gctl_error(req, "Unknown provider %s.", name); 378 continue; 379 } 380 if (sc->sc_provider->mediasize > 381 pp->mediasize - pp->sectorsize) { 382 gctl_error(req, "Provider %s too small.", name); 383 continue; 384 } 385 if ((sc->sc_provider->sectorsize % pp->sectorsize) != 0) { 386 gctl_error(req, "Invalid sectorsize of provider %s.", 387 name); 388 continue; 389 } 390 cp = g_new_consumer(sc->sc_geom); 391 if (g_attach(cp, pp) != 0) { 392 g_destroy_consumer(cp); 393 gctl_error(req, "Cannot attach to provider %s.", name); 394 continue; 395 } 396 if (g_access(cp, 0, 1, 1) != 0) { 397 g_detach(cp); 398 g_destroy_consumer(cp); 399 gctl_error(req, "Cannot access provider %s.", name); 400 continue; 401 } 402 disks[n].provider = pp; 403 disks[n].consumer = cp; 404 n++; 405 } 406 if (n == 0) { 407 g_topology_unlock(); 408 sx_xunlock(&sc->sc_lock); 409 g_free(disks); 410 return; 411 } 412 sc->sc_ndisks += n; 413 again: 414 for (i = 0; i < n; i++) { 415 if (disks[i].consumer == NULL) 416 continue; 417 g_mirror_fill_metadata(sc, NULL, &md); 418 md.md_priority = *priority; 419 if (*inactive) 420 md.md_dflags |= G_MIRROR_DISK_FLAG_INACTIVE; 421 pp = disks[i].provider; 422 if (*hardcode) { 423 strlcpy(md.md_provider, pp->name, 424 sizeof(md.md_provider)); 425 } else { 426 bzero(md.md_provider, sizeof(md.md_provider)); 427 } 428 md.md_provsize = pp->mediasize; 429 sector = g_malloc(pp->sectorsize, M_WAITOK); 430 mirror_metadata_encode(&md, sector); 431 error = g_write_data(disks[i].consumer, 432 pp->mediasize - pp->sectorsize, sector, pp->sectorsize); 433 g_free(sector); 434 if (error != 0) { 435 gctl_error(req, "Cannot store metadata on %s.", 436 pp->name); 437 g_access(disks[i].consumer, 0, -1, -1); 438 g_detach(disks[i].consumer); 439 g_destroy_consumer(disks[i].consumer); 440 disks[i].consumer = NULL; 441 disks[i].provider = NULL; 442 sc->sc_ndisks--; 443 goto again; 444 } 445 } 446 g_topology_unlock(); 447 if (i == 0) { 448 /* All writes failed. */ 449 sx_xunlock(&sc->sc_lock); 450 g_free(disks); 451 return; 452 } 453 LIST_FOREACH(disk, &sc->sc_disks, d_next) { 454 g_mirror_update_metadata(disk); 455 } 456 /* 457 * Release provider and wait for retaste. 458 */ 459 g_topology_lock(); 460 for (i = 0; i < n; i++) { 461 if (disks[i].consumer == NULL) 462 continue; 463 g_access(disks[i].consumer, 0, -1, -1); 464 g_detach(disks[i].consumer); 465 g_destroy_consumer(disks[i].consumer); 466 } 467 g_topology_unlock(); 468 sx_xunlock(&sc->sc_lock); 469 g_free(disks); 470 } 471 472 static void 473 g_mirror_ctl_remove(struct gctl_req *req, struct g_class *mp) 474 { 475 struct g_mirror_softc *sc; 476 struct g_mirror_disk *disk; 477 const char *name; 478 char param[16]; 479 int *nargs; 480 u_int i; 481 482 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 483 if (nargs == NULL) { 484 gctl_error(req, "No '%s' argument.", "nargs"); 485 return; 486 } 487 if (*nargs < 2) { 488 gctl_error(req, "Too few arguments."); 489 return; 490 } 491 name = gctl_get_asciiparam(req, "arg0"); 492 if (name == NULL) { 493 gctl_error(req, "No 'arg%u' argument.", 0); 494 return; 495 } 496 sc = g_mirror_find_device(mp, name); 497 if (sc == NULL) { 498 gctl_error(req, "No such device: %s.", name); 499 return; 500 } 501 if (g_mirror_ndisks(sc, -1) < sc->sc_ndisks) { 502 sx_xunlock(&sc->sc_lock); 503 gctl_error(req, "Not all disks connected. Try 'forget' command " 504 "first."); 505 return; 506 } 507 for (i = 1; i < (u_int)*nargs; i++) { 508 snprintf(param, sizeof(param), "arg%u", i); 509 name = gctl_get_asciiparam(req, param); 510 if (name == NULL) { 511 gctl_error(req, "No 'arg%u' argument.", i); 512 continue; 513 } 514 disk = g_mirror_find_disk(sc, name); 515 if (disk == NULL) { 516 gctl_error(req, "No such provider: %s.", name); 517 continue; 518 } 519 g_mirror_event_send(disk, G_MIRROR_DISK_STATE_DESTROY, 520 G_MIRROR_EVENT_DONTWAIT); 521 } 522 sx_xunlock(&sc->sc_lock); 523 } 524 525 static void 526 g_mirror_ctl_deactivate(struct gctl_req *req, struct g_class *mp) 527 { 528 struct g_mirror_softc *sc; 529 struct g_mirror_disk *disk; 530 const char *name; 531 char param[16]; 532 int *nargs; 533 u_int i; 534 535 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 536 if (nargs == NULL) { 537 gctl_error(req, "No '%s' argument.", "nargs"); 538 return; 539 } 540 if (*nargs < 2) { 541 gctl_error(req, "Too few arguments."); 542 return; 543 } 544 name = gctl_get_asciiparam(req, "arg0"); 545 if (name == NULL) { 546 gctl_error(req, "No 'arg%u' argument.", 0); 547 return; 548 } 549 sc = g_mirror_find_device(mp, name); 550 if (sc == NULL) { 551 gctl_error(req, "No such device: %s.", name); 552 return; 553 } 554 for (i = 1; i < (u_int)*nargs; i++) { 555 snprintf(param, sizeof(param), "arg%u", i); 556 name = gctl_get_asciiparam(req, param); 557 if (name == NULL) { 558 gctl_error(req, "No 'arg%u' argument.", i); 559 continue; 560 } 561 disk = g_mirror_find_disk(sc, name); 562 if (disk == NULL) { 563 gctl_error(req, "No such provider: %s.", name); 564 continue; 565 } 566 disk->d_flags |= G_MIRROR_DISK_FLAG_INACTIVE; 567 disk->d_flags &= ~G_MIRROR_DISK_FLAG_FORCE_SYNC; 568 g_mirror_update_metadata(disk); 569 sc->sc_bump_id |= G_MIRROR_BUMP_SYNCID; 570 g_mirror_event_send(disk, G_MIRROR_DISK_STATE_DISCONNECTED, 571 G_MIRROR_EVENT_DONTWAIT); 572 } 573 sx_xunlock(&sc->sc_lock); 574 } 575 576 static void 577 g_mirror_ctl_forget(struct gctl_req *req, struct g_class *mp) 578 { 579 struct g_mirror_softc *sc; 580 struct g_mirror_disk *disk; 581 const char *name; 582 char param[16]; 583 int *nargs; 584 u_int i; 585 586 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 587 if (nargs == NULL) { 588 gctl_error(req, "No '%s' argument.", "nargs"); 589 return; 590 } 591 if (*nargs < 1) { 592 gctl_error(req, "Missing device(s)."); 593 return; 594 } 595 596 for (i = 0; i < (u_int)*nargs; i++) { 597 snprintf(param, sizeof(param), "arg%u", i); 598 name = gctl_get_asciiparam(req, param); 599 if (name == NULL) { 600 gctl_error(req, "No 'arg%u' argument.", i); 601 return; 602 } 603 sc = g_mirror_find_device(mp, name); 604 if (sc == NULL) { 605 gctl_error(req, "No such device: %s.", name); 606 return; 607 } 608 if (g_mirror_ndisks(sc, -1) == sc->sc_ndisks) { 609 sx_xunlock(&sc->sc_lock); 610 G_MIRROR_DEBUG(1, 611 "All disks connected in %s, skipping.", 612 sc->sc_name); 613 continue; 614 } 615 sc->sc_ndisks = g_mirror_ndisks(sc, -1); 616 LIST_FOREACH(disk, &sc->sc_disks, d_next) { 617 g_mirror_update_metadata(disk); 618 } 619 sx_xunlock(&sc->sc_lock); 620 } 621 } 622 623 static void 624 g_mirror_ctl_stop(struct gctl_req *req, struct g_class *mp) 625 { 626 struct g_mirror_softc *sc; 627 int *force, *nargs, error; 628 const char *name; 629 char param[16]; 630 u_int i; 631 632 nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs)); 633 if (nargs == NULL) { 634 gctl_error(req, "No '%s' argument.", "nargs"); 635 return; 636 } 637 if (*nargs < 1) { 638 gctl_error(req, "Missing device(s)."); 639 return; 640 } 641 force = gctl_get_paraml(req, "force", sizeof(*force)); 642 if (force == NULL) { 643 gctl_error(req, "No '%s' argument.", "force"); 644 return; 645 } 646 647 for (i = 0; i < (u_int)*nargs; i++) { 648 snprintf(param, sizeof(param), "arg%u", i); 649 name = gctl_get_asciiparam(req, param); 650 if (name == NULL) { 651 gctl_error(req, "No 'arg%u' argument.", i); 652 return; 653 } 654 sc = g_mirror_find_device(mp, name); 655 if (sc == NULL) { 656 gctl_error(req, "No such device: %s.", name); 657 return; 658 } 659 error = g_mirror_destroy(sc, *force); 660 if (error != 0) { 661 gctl_error(req, "Cannot destroy device %s (error=%d).", 662 sc->sc_geom->name, error); 663 sx_xunlock(&sc->sc_lock); 664 return; 665 } 666 /* No need to unlock, because lock is already dead. */ 667 } 668 } 669 670 void 671 g_mirror_config(struct gctl_req *req, struct g_class *mp, const char *verb) 672 { 673 uint32_t *version; 674 675 g_topology_assert(); 676 677 version = gctl_get_paraml(req, "version", sizeof(*version)); 678 if (version == NULL) { 679 gctl_error(req, "No '%s' argument.", "version"); 680 return; 681 } 682 if (*version != G_MIRROR_VERSION) { 683 gctl_error(req, "Userland and kernel parts are out of sync."); 684 return; 685 } 686 687 g_topology_unlock(); 688 if (strcmp(verb, "configure") == 0) 689 g_mirror_ctl_configure(req, mp); 690 else if (strcmp(verb, "rebuild") == 0) 691 g_mirror_ctl_rebuild(req, mp); 692 else if (strcmp(verb, "insert") == 0) 693 g_mirror_ctl_insert(req, mp); 694 else if (strcmp(verb, "remove") == 0) 695 g_mirror_ctl_remove(req, mp); 696 else if (strcmp(verb, "deactivate") == 0) 697 g_mirror_ctl_deactivate(req, mp); 698 else if (strcmp(verb, "forget") == 0) 699 g_mirror_ctl_forget(req, mp); 700 else if (strcmp(verb, "stop") == 0) 701 g_mirror_ctl_stop(req, mp); 702 else 703 gctl_error(req, "Unknown verb."); 704 g_topology_lock(); 705 } 706