static int raid_open_alt(mr_unit_t *un, int index) { mr_column_t *column = &un->un_column[index]; set_t setno = MD_MIN2SET(MD_SID(un)); side_t side = mddb_getsidenum(setno); md_dev64_t tmpdev = column->un_alt_dev; /* correct locks */ ASSERT(UNIT_WRITER_HELD(un)); /* not already writing to */ ASSERT(! (column->un_devflags & MD_RAID_WRITE_ALT)); /* not already open */ ASSERT(! (column->un_devflags & MD_RAID_ALT_ISOPEN)); if (tmpdev != NODEV64) { /* * Open by device id. We use orig_key since alt_dev * has been set by the caller to be the same as orig_dev. */ if ((md_getmajor(tmpdev) != md_major) && md_devid_found(setno, side, column->un_orig_key) == 1) { tmpdev = md_resolve_bydevid(MD_SID(un), tmpdev, column->un_orig_key); } if (md_layered_open(MD_SID(un), &tmpdev, MD_OFLG_NULL)) { /* failed open */ column->un_alt_dev = tmpdev; return (1); } else { /* open suceeded */ column->un_alt_dev = tmpdev; column->un_devflags |= MD_RAID_ALT_ISOPEN; return (0); } } else /* no alt device to open */ return (1); }
static int seths_replace(set_hs_params_t *shs) { hot_spare_t *hs; hot_spare_t *prev_hs; hot_spare_t *new_hs; hot_spare_pool_t *hsp; int new_found = 0; mddb_recid_t recid; mddb_recid_t recids[5]; int i; sv_dev_t sv; int delete_hs = 0; set_t setno; mddb_type_t typ1; mdkey_t key_old; int num_keys_old = 0; setno = HSP_SET(shs->shs_hot_spare_pool); typ1 = (mddb_type_t)md_getshared_key(setno, hotspares_md_ops.md_driver.md_drivername); /* Scan the hot spare list */ hs = (hot_spare_t *)md_set[setno].s_hs; prev_hs = (hot_spare_t *)0; while (hs) { if (hs->hs_devnum == shs->shs_component_old) { break; } prev_hs = hs; hs = hs->hs_next; } if (hs == NULL) { /* * Unable to find device using devnum so use * key associated with shs_component_old instead. * If unable to find a unique key for shs_component_old * then fail since namespace has multiple entries * for this old component and we're unable to determine * which key is the valid match for shs_component_old. * * Only need to compare keys when hs_devnum is NODEV. */ if (md_getkeyfromdev(setno, mddb_getsidenum(setno), shs->shs_component_old, &key_old, &num_keys_old) != 0) { return (mddeverror(&shs->mde, MDE_NAME_SPACE, shs->shs_component_old)); } /* * If more than one key matches given old_dev - fail command * since unable to determine which key is correct. */ if (num_keys_old > 1) { return (mddeverror(&shs->mde, MDE_MULTNM, shs->shs_component_old)); } /* * If there is no key for this entry then fail since * a key for this entry should exist. */ if (num_keys_old == 0) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* Scan the hot spare list again */ hs = (hot_spare_t *)md_set[setno].s_hs; prev_hs = (hot_spare_t *)0; while (hs) { /* * Only need to compare keys when hs_devnum is NODEV. */ if ((hs->hs_devnum == NODEV64) && (hs->hs_key == key_old)) { break; } prev_hs = hs; hs = hs->hs_next; } } if (hs == NULL) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* check the force flag and the state of the hot spare */ if (((shs->shs_options & HS_OPT_FORCE) == 0) && (hs->hs_state == HSS_RESERVED)) { return (mdhserror(&shs->mde, MDE_HS_RESVD, shs->shs_hot_spare_pool, hs->hs_devnum)); } /* Scan the hot spare pool list */ hsp = find_hot_spare_pool(setno, shs->shs_hot_spare_pool); if (hsp == (hot_spare_pool_t *)0) { return (mdhsperror(&shs->mde, MDE_INVAL_HSP, shs->shs_hot_spare_pool)); } /* * Make sure the old device is in the pool. */ for (i = 0; i < hsp->hsp_nhotspares; i++) { if (hsp->hsp_hotspares[i] == hs->hs_record_id) { break; } } if (i >= hsp->hsp_nhotspares) { return (mddeverror(&shs->mde, MDE_INVAL_HS, hs->hs_devnum)); } /* Scan the hot spare list for the new hs */ new_hs = (hot_spare_t *)md_set[setno].s_hs; new_found = 0; while (new_hs) { if (new_hs->hs_devnum == shs->shs_component_new) { new_found = 1; break; } new_hs = new_hs->hs_next; } /* * Make sure the new device is not already in the pool. * We don't have to search the hs in this hsp, if the * new hs was just created. Only if the hot spare was found. */ if (new_found) { for (i = 0; i < hsp->hsp_nhotspares; i++) if (hsp->hsp_hotspares[i] == new_hs->hs_record_id) { return (mdhserror(&shs->mde, MDE_HS_INUSE, shs->shs_hot_spare_pool, new_hs->hs_devnum)); } } /* In case of a dryrun, we're done here */ if (shs->shs_options & HS_OPT_DRYRUN) { return (0); } /* * Create the new hotspare */ if (!new_found) { /* create a hot spare record */ if (shs->shs_size_option & MD_CRO_64BIT) { #if defined(_ILP32) return (mdhserror(&shs->mde, MDE_HS_UNIT_TOO_LARGE, shs->shs_hot_spare_pool, shs->shs_component_new)); #else recid = mddb_createrec(HS_ONDSK_STR_SIZE, typ1, HS_REC, MD_CRO_64BIT | MD_CRO_HOTSPARE, setno); #endif } else { recid = mddb_createrec(HS_ONDSK_STR_SIZE, typ1, HS_REC, MD_CRO_32BIT | MD_CRO_HOTSPARE, setno); } if (recid < 0) { return (mdhserror(&shs->mde, MDE_HS_CREATE_FAILURE, shs->shs_hot_spare_pool, shs->shs_component_new)); } /* get the addr */ new_hs = (hot_spare_t *)mddb_getrecaddr_resize(recid, sizeof (*new_hs), 0); new_hs->hs_record_id = recid; new_hs->hs_devnum = shs->shs_component_new; new_hs->hs_key = shs->shs_key_new; new_hs->hs_start_blk = shs->shs_start_blk; new_hs->hs_has_label = shs->shs_has_label; new_hs->hs_number_blks = shs->shs_number_blks; set_hot_spare_state(new_hs, HSS_AVAILABLE); new_hs->hs_refcount = 0; new_hs->hs_isopen = 1; } /* lock the db records */ recids[0] = hs->hs_record_id; recids[1] = new_hs->hs_record_id; recids[2] = hsp->hsp_record_id; recids[3] = 0; sv.setno = setno; sv.key = hs->hs_key; hs->hs_refcount--; if (hs->hs_refcount == 0) { /* * NOTE: We do not commit the previous hot spare record. * There is no need, the link we get rebuilt at boot time. */ if (prev_hs) { prev_hs->hs_next = hs->hs_next; } else md_set[setno].s_hs = (void *) hs->hs_next; /* mark hs to be deleted in the correct order */ delete_hs = 1; recids[0] = new_hs->hs_record_id; recids[1] = hsp->hsp_record_id; recids[2] = 0; } /* link into the hs list */ new_hs->hs_refcount++; if (!new_found) { /* do this AFTER the old dev is possibly removed */ new_hs->hs_next = (hot_spare_t *)md_set[setno].s_hs; md_set[setno].s_hs = (void *) new_hs; } /* find the location of the old hs in the hsp */ for (i = 0; i < hsp->hsp_nhotspares; i++) { if (hsp->hsp_hotspares[i] == hs->hs_record_id) { hsp->hsp_hotspares[i] = new_hs->hs_record_id; break; } } if (shs->shs_size_option & MD_CRO_64BIT) { new_hs->hs_revision |= MD_64BIT_META_DEV; } else { new_hs->hs_revision &= ~MD_64BIT_META_DEV; } /* commit the db records */ mddb_commitrecs_wrapper(recids); if (delete_hs) mddb_deleterec_wrapper(hs->hs_record_id); md_rem_names(&sv, 1); SE_NOTIFY(EC_SVM_CONFIG, ESC_SVM_REPLACE, SVM_TAG_HSP, setno, md_expldev(hsp->hsp_self_id)); return (0); }
static int seths_enable(set_hs_params_t *shs) { hot_spare_t *hs; mddb_recid_t recids[2]; set_t setno = shs->md_driver.md_setno; mdkey_t key_old; int num_keys_old = 0; /* * Find device by using key associated with shs_component_old. * If unable to find a unique key for shs_component_old * then fail since namespace has multiple entries * for this old component and we're unable to determine * which key is the valid match for shs_component_old. * This failure keeps a hotspare from being enabled on a slice * that may already be in use by another metadevice. */ if (md_getkeyfromdev(setno, mddb_getsidenum(setno), shs->shs_component_old, &key_old, &num_keys_old) != 0) { return (mddeverror(&shs->mde, MDE_NAME_SPACE, shs->shs_component_old)); } /* * If more than one key matches given old_dev - fail command * since unable to determine which key is correct. */ if (num_keys_old > 1) { return (mddeverror(&shs->mde, MDE_MULTNM, shs->shs_component_old)); } /* * If there is no key for this entry then fail since * a key for this entry should exist. */ if (num_keys_old == 0) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* Scan the hot spare list for the hs */ hs = (hot_spare_t *)md_set[setno].s_hs; while (hs) { /* * Since component may or may not be currently in the system, * use the keys to find a match (not the devt). */ if (hs->hs_key == key_old) { break; } hs = hs->hs_next; } if (hs == NULL) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* make sure it's broken */ if (hs->hs_state != HSS_BROKEN) { return (mddeverror(&shs->mde, MDE_FIX_INVAL_HS_STATE, hs->hs_devnum)); } /* In case of a dryrun, we're done here */ if (shs->shs_options & HS_OPT_DRYRUN) { return (0); } /* fix it */ set_hot_spare_state(hs, HSS_AVAILABLE); hs->hs_start_blk = shs->shs_start_blk; hs->hs_has_label = shs->shs_has_label; hs->hs_number_blks = shs->shs_number_blks; /* commit the db records */ recids[0] = hs->hs_record_id; recids[1] = 0; mddb_commitrecs_wrapper(recids); SE_NOTIFY(EC_SVM_STATE, ESC_SVM_ENABLE, SVM_TAG_HS, setno, shs->shs_component_old); return (0); }
static int seths_delete(set_hs_params_t *shs) { hot_spare_t *hs; hot_spare_t *prev_hs; hot_spare_pool_t *hsp; mddb_recid_t recids[4]; int i; set_t setno; sv_dev_t sv; int delete_hs = 0; mdkey_t key_old; int num_keys_old = 0; /* delete the hot spare pool */ if (shs->shs_options & HS_OPT_POOL) { return (seths_delete_hsp(shs)); } setno = HSP_SET(shs->shs_hot_spare_pool); /* Scan the hot spare list */ hs = (hot_spare_t *)md_set[setno].s_hs; prev_hs = (hot_spare_t *)0; while (hs) { if (hs->hs_devnum == shs->shs_component_old) { break; } prev_hs = hs; hs = hs->hs_next; } if (hs == NULL) { /* * Unable to find device using devnum so use * key associated with shs_component_old instead. * If unable to find a unique key for shs_component_old * then fail since namespace has multiple entries * for this old component and we're unable to determine * which key is the valid match for shs_component_old. * * Only need to compare keys when hs_devnum is NODEV. */ if (md_getkeyfromdev(setno, mddb_getsidenum(setno), shs->shs_component_old, &key_old, &num_keys_old) != 0) { return (mddeverror(&shs->mde, MDE_NAME_SPACE, shs->shs_component_old)); } /* * If more than one key matches given old_dev - fail command * since shouldn't add new hotspare if namespace has * multiple entries. */ if (num_keys_old > 1) { return (mddeverror(&shs->mde, MDE_MULTNM, shs->shs_component_old)); } /* * If there is no key for this entry then fail since * a key for this entry should exist. */ if (num_keys_old == 0) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* Scan the hot spare list again */ hs = (hot_spare_t *)md_set[setno].s_hs; prev_hs = (hot_spare_t *)0; while (hs) { /* * Only need to compare keys when hs_devnum is NODEV. */ if ((hs->hs_devnum == NODEV64) && (hs->hs_key == key_old)) { break; } prev_hs = hs; hs = hs->hs_next; } } if (hs == NULL) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* Scan the hot spare pool list */ hsp = find_hot_spare_pool(setno, shs->shs_hot_spare_pool); if (hsp == (hot_spare_pool_t *)0) { return (mdhsperror(&shs->mde, MDE_INVAL_HSP, shs->shs_hot_spare_pool)); } /* check for force flag and state of hot spare */ if (((shs->shs_options & HS_OPT_FORCE) == 0) && (hs->hs_state == HSS_RESERVED)) { return (mdhserror(&shs->mde, MDE_HS_RESVD, shs->shs_hot_spare_pool, shs->shs_component_old)); } if (hsp->hsp_refcount && (hs->hs_state == HSS_RESERVED)) { return (mdhserror(&shs->mde, MDE_HS_RESVD, shs->shs_hot_spare_pool, shs->shs_component_old)); } /* * Make sure the device is in the pool. */ for (i = 0; i < hsp->hsp_nhotspares; i++) { if (hsp->hsp_hotspares[i] == hs->hs_record_id) { break; } } if (i >= hsp->hsp_nhotspares) { return (mddeverror(&shs->mde, MDE_INVAL_HS, hs->hs_devnum)); } /* In case of a dryrun, we're done here */ if (shs->shs_options & HS_OPT_DRYRUN) { return (0); } /* lock the db records */ recids[0] = hs->hs_record_id; recids[1] = hsp->hsp_record_id; recids[2] = 0; sv.setno = setno; sv.key = hs->hs_key; hs->hs_refcount--; if (hs->hs_refcount == 0) { /* * NOTE: We do not commit the previous hot spare record. * There is no need, the link we get rebuilt at boot time. */ if (prev_hs) { prev_hs->hs_next = hs->hs_next; } else md_set[setno].s_hs = (void *) hs->hs_next; /* mark the hot spare to be deleted */ delete_hs = 1; recids[0] = hsp->hsp_record_id; recids[1] = 0; } /* find the location of the hs in the hsp */ for (i = 0; i < hsp->hsp_nhotspares; i++) { if (hsp->hsp_hotspares[i] == hs->hs_record_id) break; } /* remove the hs from the hsp */ for (i++; i < hsp->hsp_nhotspares; i++) hsp->hsp_hotspares[i - 1] = hsp->hsp_hotspares[i]; hsp->hsp_nhotspares--; /* commit the db records */ mddb_commitrecs_wrapper(recids); if (delete_hs) mddb_deleterec_wrapper(hs->hs_record_id); md_rem_names(&sv, 1); SE_NOTIFY(EC_SVM_CONFIG, ESC_SVM_REMOVE, SVM_TAG_HSP, setno, md_expldev(hsp->hsp_self_id)); return (0); }
static int seths_add(set_hs_params_t *shs) { hot_spare_t *hs; hot_spare_pool_t *hsp; hot_spare_pool_t *prev_hsp; hot_spare_pool_t *new_hsp; hot_spare_pool_t *old_hsp; md_create_rec_option_t options; mddb_recid_t recid; mddb_recid_t recids[5]; size_t new_size; int i; int delete_hsp = 0; int irecid; set_t setno; mddb_type_t typ1; int hsp_created = 0; mdkey_t key_old; int num_keys_old = 0; /* Not much to do here in case of a dryrun */ if (shs->shs_options & HS_OPT_DRYRUN) { return (0); } /* create an empty hot spare pool */ if (shs->shs_options & HS_OPT_POOL) { return (seths_create_hsp(shs)); } setno = HSP_SET(shs->shs_hot_spare_pool); typ1 = (mddb_type_t)md_getshared_key(setno, hotspares_md_ops.md_driver.md_drivername); /* Scan the hot spare list */ hs = (hot_spare_t *)md_set[setno].s_hs; while (hs) { if (hs->hs_devnum == shs->shs_component_old) { break; } hs = hs->hs_next; } if (hs == NULL) { /* * Did not find match for device using devnum so use * key associated with shs_component_old just * in case there is a match but the match's dev is NODEV. * If unable to find a unique key for shs_component_old * then fail since namespace has multiple entries * for this old component and we shouldn't allow * an addition of a hotspare in this case. */ if (md_getkeyfromdev(setno, mddb_getsidenum(setno), shs->shs_component_old, &key_old, &num_keys_old) != 0) { return (mddeverror(&shs->mde, MDE_NAME_SPACE, shs->shs_component_old)); } /* * If more than one key matches given old_dev - fail command * since shouldn't add new hotspare if namespace has * multiple entries. */ if (num_keys_old > 1) { return (mddeverror(&shs->mde, MDE_MULTNM, shs->shs_component_old)); } /* * If there is no key for this entry then fail since * a key for this entry should exist. */ if (num_keys_old == 0) { return (mddeverror(&shs->mde, MDE_INVAL_HS, shs->shs_component_old)); } /* Scan the hot spare list again */ hs = (hot_spare_t *)md_set[setno].s_hs; while (hs) { /* * Only need to compare keys when hs_devnum is NODEV. */ if ((hs->hs_devnum == NODEV64) && (hs->hs_key == key_old)) { break; } hs = hs->hs_next; } } if (hs == NULL) { /* create a hot spare record */ if (shs->shs_size_option & MD_CRO_64BIT) { #if defined(_ILP32) return (mdhserror(&shs->mde, MDE_HS_UNIT_TOO_LARGE, shs->shs_hot_spare_pool, shs->shs_component_old)); #else recid = mddb_createrec(HS_ONDSK_STR_SIZE, typ1, HS_REC, MD_CRO_64BIT | MD_CRO_HOTSPARE, setno); #endif } else { recid = mddb_createrec(HS_ONDSK_STR_SIZE, typ1, HS_REC, MD_CRO_32BIT | MD_CRO_HOTSPARE, setno); } if (recid < 0) { return (mdhserror(&shs->mde, MDE_HS_CREATE_FAILURE, shs->shs_hot_spare_pool, shs->shs_component_old)); } /* get the addr */ hs = (hot_spare_t *)mddb_getrecaddr_resize(recid, sizeof (*hs), 0); hs->hs_record_id = recid; hs->hs_devnum = shs->shs_component_old; hs->hs_key = shs->shs_key_old; hs->hs_start_blk = shs->shs_start_blk; hs->hs_has_label = shs->shs_has_label; hs->hs_number_blks = shs->shs_number_blks; set_hot_spare_state(hs, HSS_AVAILABLE); hs->hs_refcount = 0; hs->hs_next = (hot_spare_t *)md_set[setno].s_hs; md_set[setno].s_hs = (void *) hs; } /* Scan the hot spare pool list */ hsp = (hot_spare_pool_t *)md_set[setno].s_hsp; prev_hsp = (hot_spare_pool_t *)0; while (hsp) { if (hsp->hsp_self_id == shs->shs_hot_spare_pool) { break; } prev_hsp = hsp; hsp = hsp->hsp_next; } if (hsp == NULL) { /* create a hot spare pool record */ recid = mddb_createrec(sizeof (hot_spare_pool_ond_t), typ1, HSP_REC, MD_CRO_32BIT | MD_CRO_HOTSPARE_POOL | MD_CRO_FN, setno); if (recid < 0) { return (mdhsperror(&shs->mde, MDE_HSP_CREATE_FAILURE, shs->shs_hot_spare_pool)); } /* get the record addr */ hsp = (hot_spare_pool_t *)mddb_getrecaddr_resize(recid, sizeof (*hsp), HSP_ONDSK_STR_OFF); hsp->hsp_self_id = shs->shs_hot_spare_pool; hsp->hsp_record_id = recid; hsp->hsp_next = (hot_spare_pool_t *)md_set[setno].s_hsp; hsp->hsp_refcount = 0; hsp->hsp_nhotspares = 0; hsp->hsp_revision |= MD_FN_META_DEV; /* force prev_hsp to NULL, this will cause hsp to be linked */ prev_hsp = (hot_spare_pool_t *)0; rw_enter(&hotspares_md_ops.md_link_rw.lock, RW_WRITER); hsp->hsp_link.ln_next = hotspares_md_ops.md_head; hsp->hsp_link.ln_setno = setno; hsp->hsp_link.ln_id = hsp->hsp_self_id; hotspares_md_ops.md_head = &hsp->hsp_link; rw_exit(&hotspares_md_ops.md_link_rw.lock); hsp_created = 1; } else { /* * Make sure the hot spare is not already in the pool. */ for (i = 0; i < hsp->hsp_nhotspares; i++) if (hsp->hsp_hotspares[i] == hs->hs_record_id) { return (mdhserror(&shs->mde, MDE_HS_INUSE, shs->shs_hot_spare_pool, hs->hs_devnum)); } /* * Create a new hot spare pool record * This gives us the one extra hs slot, * because there is one slot in the * hot_spare_pool struct */ new_size = sizeof (hot_spare_pool_ond_t) + (sizeof (mddb_recid_t) * hsp->hsp_nhotspares); /* * The Friendly Name status of the new HSP should duplicate * the status of the existing one. */ if (hsp->hsp_revision & MD_FN_META_DEV) { options = MD_CRO_32BIT | MD_CRO_HOTSPARE_POOL | MD_CRO_FN; } else { options = MD_CRO_32BIT | MD_CRO_HOTSPARE_POOL; } recid = mddb_createrec(new_size, typ1, HSP_REC, options, setno); if (recid < 0) { return (mdhsperror(&shs->mde, MDE_HSP_CREATE_FAILURE, hsp->hsp_self_id)); } new_size = sizeof (hot_spare_pool_t) + (sizeof (mddb_recid_t) * hsp->hsp_nhotspares); /* get the record addr */ new_hsp = (hot_spare_pool_t *)mddb_getrecaddr_resize(recid, new_size, HSP_ONDSK_STR_OFF); /* copy the old record into the new one */ bcopy((caddr_t)hsp, (caddr_t)new_hsp, (size_t)((sizeof (hot_spare_pool_t) + (sizeof (mddb_recid_t) * hsp->hsp_nhotspares) - sizeof (mddb_recid_t)))); new_hsp->hsp_record_id = recid; md_rem_link(setno, hsp->hsp_self_id, &hotspares_md_ops.md_link_rw.lock, &hotspares_md_ops.md_head); rw_enter(&hotspares_md_ops.md_link_rw.lock, RW_WRITER); new_hsp->hsp_link.ln_next = hotspares_md_ops.md_head; new_hsp->hsp_link.ln_setno = setno; new_hsp->hsp_link.ln_id = new_hsp->hsp_self_id; hotspares_md_ops.md_head = &new_hsp->hsp_link; rw_exit(&hotspares_md_ops.md_link_rw.lock); /* mark the old hsp to be deleted */ delete_hsp = 1; old_hsp = hsp; hsp = new_hsp; } if (shs->shs_size_option & MD_CRO_64BIT) { hs->hs_revision |= MD_64BIT_META_DEV; } else { hs->hs_revision &= ~MD_64BIT_META_DEV; } /* lock the db records */ recids[0] = hs->hs_record_id; recids[1] = hsp->hsp_record_id; irecid = 2; if (delete_hsp) recids[irecid++] = old_hsp->hsp_record_id; recids[irecid] = 0; /* increment the reference count */ hs->hs_refcount++; /* add the hs at the end of the hot spare pool */ hsp->hsp_hotspares[hsp->hsp_nhotspares] = hs->hs_record_id; hsp->hsp_nhotspares++; /* * NOTE: We do not commit the previous hot spare pool record. * There is no need, the link gets rebuilt at boot time. */ if (prev_hsp) prev_hsp->hsp_next = hsp; else md_set[setno].s_hsp = (void *) hsp; if (delete_hsp) old_hsp->hsp_self_id = MD_HSP_NONE; /* commit the db records */ mddb_commitrecs_wrapper(recids); if (delete_hsp) { /* delete the old hot spare pool record */ mddb_deleterec_wrapper(old_hsp->hsp_record_id); } if (hsp_created) { SE_NOTIFY(EC_SVM_CONFIG, ESC_SVM_CREATE, SVM_TAG_HSP, setno, md_expldev(hsp->hsp_self_id)); } SE_NOTIFY(EC_SVM_CONFIG, ESC_SVM_ADD, SVM_TAG_HSP, setno, md_expldev(hsp->hsp_self_id)); return (0); }
static void load_hotspare(set_t setno, mddb_recid_t recid) { hot_spare_t *hs; mddb_de_ic_t *dep; mddb_rb32_t *rbp; size_t newreqsize; hot_spare_t *b_hs; hot_spare32_od_t *s_hs; mddb_setrecprivate(recid, MD_PRV_GOTIT); dep = mddb_getrecdep(recid); dep->de_flags = MDDB_F_HOTSPARE; rbp = dep->de_rb; switch (rbp->rb_revision) { case MDDB_REV_RB: case MDDB_REV_RBFN: /* * Needs to convert to internal 64 bit */ s_hs = (hot_spare32_od_t *)mddb_getrecaddr(recid); newreqsize = sizeof (hot_spare_t); b_hs = (hot_spare_t *)kmem_zalloc(newreqsize, KM_SLEEP); hs_convert((caddr_t)s_hs, (caddr_t)b_hs, SMALL_2_BIG); kmem_free(s_hs, dep->de_reqsize); dep->de_rb_userdata = b_hs; dep->de_reqsize = newreqsize; hs = b_hs; break; case MDDB_REV_RB64: case MDDB_REV_RB64FN: hs = (hot_spare_t *)mddb_getrecaddr_resize (recid, sizeof (*hs), 0); break; } MDDB_NOTE_FN(rbp->rb_revision, hs->hs_revision); #if defined(_ILP32) if (hs->hs_revision & MD_64BIT_META_DEV) { char devname[MD_MAX_CTDLEN]; set_hot_spare_state(hs, HSS_BROKEN); (void) md_devname(setno, hs->hs_devnum, devname, sizeof (devname)); cmn_err(CE_NOTE, "%s is unavailable because 64 bit hotspares " "are not accessible on a 32 bit kernel\n", devname); } #endif ASSERT(hs != NULL); if (hs->hs_refcount == 0) { mddb_setrecprivate(recid, MD_PRV_PENDDEL); return; } hs->hs_next = (hot_spare_t *)md_set[setno].s_hs; md_set[setno].s_hs = (void *)hs; hs->hs_isopen = 0; hs->hs_devnum = md_getdevnum(setno, mddb_getsidenum(setno), hs->hs_key, MD_NOTRUST_DEVT); }
int stripe_build_incore(void *p, int snarfing) { ms_unit_t *un = (ms_unit_t *)p; struct ms_comp *mdcomp; minor_t mnum; int row; int i; int c; int ncomps; mnum = MD_SID(un); if (MD_UNIT(mnum) != NULL) return (0); MD_STATUS(un) = 0; /* * Reset all the is_open flags, these are probably set * cause they just came out of the database. */ mdcomp = (struct ms_comp *)((void *)&((char *)un)[un->un_ocomp]); ncomps = 0; for (row = 0; row < un->un_nrows; row++) { struct ms_row *mdr = &un->un_row[row]; ncomps += mdr->un_ncomp; } for (row = 0; row < un->un_nrows; row++) { struct ms_row *mdr = &un->un_row[row]; for (i = 0, c = mdr->un_icomp; i < mdr->un_ncomp; i++) { struct ms_comp *mdc; set_t setno; md_dev64_t tmpdev; mdc = &mdcomp[c++]; mdc->un_mirror.ms_flags &= ~(MDM_S_ISOPEN | MDM_S_IOERR | MDM_S_RS_TRIED); if (!snarfing) continue; setno = MD_MIN2SET(mnum); tmpdev = md_getdevnum(setno, mddb_getsidenum(setno), mdc->un_key, MD_NOTRUST_DEVT); mdc->un_dev = tmpdev; /* * Check for hotspares. If the hotspares haven't been * snarfed yet, stripe_open_all_devs() will do the * remapping of the dev's later. */ if (mdc->un_mirror.ms_hs_id != 0) { mdc->un_mirror.ms_orig_dev = mdc->un_dev; (void) md_hot_spare_ifc(HS_MKDEV, 0, 0, 0, &mdc->un_mirror.ms_hs_id, NULL, &tmpdev, NULL); mdc->un_dev = tmpdev; } } } /* place various information in the in-core data structures */ md_nblocks_set(mnum, un->c.un_total_blocks); MD_UNIT(mnum) = un; return (0); }
static int stripe_open_all_devs(ms_unit_t *un, int md_oflags) { minor_t mnum = MD_SID(un); int row; int i; int c; struct ms_comp *mdcomp; int err; int cont_on_errors = (md_oflags & MD_OFLG_CONT_ERRS); int probe_err_cnt = 0; int total_comp_cnt = 0; set_t setno = MD_MIN2SET(MD_SID(un)); side_t side = mddb_getsidenum(setno); mdkey_t key; mdcomp = (struct ms_comp *)((void *)&((char *)un)[un->un_ocomp]); /* * For a probe call, if any component of a stripe or a concat * can be opened, it is considered to be a success. The total number * of components in a stripe are computed prior to starting a probe. * This number is then compared against the number of components * that could be be successfully opened. If none of the components * in a stripe can be opened, only then an ENXIO is returned for a * probe type open. */ for (row = 0; row < un->un_nrows; row++) { struct ms_row *mdr = &un->un_row[row]; if (md_oflags & MD_OFLG_PROBEDEV) total_comp_cnt += mdr->un_ncomp; for (i = 0, c = mdr->un_icomp; i < mdr->un_ncomp; i++) { struct ms_comp *mdc; md_dev64_t tmpdev; mdc = &mdcomp[c++]; tmpdev = mdc->un_dev; /* * Do the open by device id * Check if this comp is hotspared and * if it is then use the key for hotspare. * MN disksets don't use devids, so we better don't use * md_devid_found/md_resolve_bydevid there. Rather do, * what's done in stripe_build_incore() */ if (MD_MNSET_SETNO(setno)) { if (mdc->un_mirror.ms_hs_id != 0) { (void) md_hot_spare_ifc(HS_MKDEV, 0, 0, 0, &mdc->un_mirror.ms_hs_id, NULL, &tmpdev, NULL); } } else { key = mdc->un_mirror.ms_hs_id ? mdc->un_mirror.ms_hs_key : mdc->un_key; if ((md_getmajor(tmpdev) != md_major) && md_devid_found(setno, side, key) == 1) { tmpdev = md_resolve_bydevid(mnum, tmpdev, key); } } /* * For a submirror, we only want to open those devices * that are not errored. If the device is errored then * then there is no reason to open it and leaving it * closed allows the RCM/DR code to work so that the * errored device can be replaced. */ if ((md_oflags & MD_OFLG_PROBEDEV) || ! (mdc->un_mirror.ms_state & CS_ERRED)) { err = md_layered_open(mnum, &tmpdev, md_oflags); } else { err = ENXIO; } /* * Only set the un_dev if the tmpdev != NODEV64. If * it is NODEV64 then the md_layered_open() will have * failed in some manner. */ if (tmpdev != NODEV64) mdc->un_dev = tmpdev; if (err) { if (!cont_on_errors) { stripe_close_all_devs(un, md_oflags); return (ENXIO); } if (md_oflags & MD_OFLG_PROBEDEV) probe_err_cnt++; } else { if (md_oflags & MD_OFLG_PROBEDEV) { mdc->un_mirror.ms_flags |= MDM_S_PROBEOPEN; } else mdc->un_mirror.ms_flags |= MDM_S_ISOPEN; } } } /* If every component in a stripe could not be opened fail */ if ((md_oflags & MD_OFLG_PROBEDEV) && (probe_err_cnt == total_comp_cnt)) return (ENXIO); else return (0); }