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f65dd341a5
Previously, we have relied on UUIDs alone, and on lvmcache to make getting a "new copy" of VG metadata fast. If the code which triggers the activation has the correct VG metadata at hand (the version which is currently on disk), it can now hand it to the activation code directly.
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "tools.h"
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#include "metadata-exported.h"
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/*
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* Intial sanity checking of recovery-related command-line arguments.
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* These args are: --restorefile, --uuid, and --physicalvolumesize
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*
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* Output arguments:
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* pp: structure allocated by caller, fields written / validated here
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*/
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static int pvcreate_restore_params_validate(struct cmd_context *cmd,
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int argc, char **argv,
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struct pvcreate_params *pp)
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{
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const char *uuid = NULL;
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struct volume_group *vg;
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struct pv_list *existing_pvl;
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if (arg_count(cmd, restorefile_ARG) && !arg_count(cmd, uuidstr_ARG)) {
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log_error("--uuid is required with --restorefile");
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return 0;
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}
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if (!arg_count(cmd, restorefile_ARG) && arg_count(cmd, uuidstr_ARG)) {
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if (!arg_count(cmd, norestorefile_ARG) &&
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find_config_tree_bool(cmd, devices_require_restorefile_with_uuid_CFG)) {
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log_error("--restorefile is required with --uuid");
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return 0;
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}
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}
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if (arg_count(cmd, uuidstr_ARG) && argc != 1) {
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log_error("Can only set uuid on one volume at once");
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return 0;
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}
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if (arg_count(cmd, uuidstr_ARG)) {
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uuid = arg_str_value(cmd, uuidstr_ARG, "");
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if (!id_read_format(&pp->rp.id, uuid))
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return 0;
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pp->rp.idp = &pp->rp.id;
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lvmcache_seed_infos_from_lvmetad(cmd); /* need to check for UUID dups */
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}
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if (arg_count(cmd, restorefile_ARG)) {
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pp->rp.restorefile = arg_str_value(cmd, restorefile_ARG, "");
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/* The uuid won't already exist */
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if (!(vg = backup_read_vg(cmd, NULL, pp->rp.restorefile))) {
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log_error("Unable to read volume group from %s",
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pp->rp.restorefile);
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return 0;
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}
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if (!(existing_pvl = find_pv_in_vg_by_uuid(vg, pp->rp.idp))) {
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release_vg(vg);
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log_error("Can't find uuid %s in backup file %s",
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uuid, pp->rp.restorefile);
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return 0;
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}
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pp->rp.ba_start = pv_ba_start(existing_pvl->pv);
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pp->rp.ba_size = pv_ba_size(existing_pvl->pv);
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pp->rp.pe_start = pv_pe_start(existing_pvl->pv);
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pp->rp.extent_size = pv_pe_size(existing_pvl->pv);
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pp->rp.extent_count = pv_pe_count(existing_pvl->pv);
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release_vg(vg);
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}
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if (arg_sign_value(cmd, physicalvolumesize_ARG, SIGN_NONE) == SIGN_MINUS) {
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log_error("Physical volume size may not be negative");
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return 0;
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}
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pp->size = arg_uint64_value(cmd, physicalvolumesize_ARG, UINT64_C(0));
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if (arg_count(cmd, restorefile_ARG) || arg_count(cmd, uuidstr_ARG))
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pp->zero = 0;
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return 1;
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}
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int pvcreate(struct cmd_context *cmd, int argc, char **argv)
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{
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int i;
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int ret = ECMD_PROCESSED;
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struct pvcreate_params pp;
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struct physical_volume *pv;
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pvcreate_params_set_defaults(&pp);
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if (!pvcreate_restore_params_validate(cmd, argc, argv, &pp)) {
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return EINVALID_CMD_LINE;
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}
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if (!pvcreate_params_validate(cmd, argc, argv, &pp)) {
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return EINVALID_CMD_LINE;
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}
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for (i = 0; i < argc; i++) {
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if (!lock_vol(cmd, VG_ORPHANS, LCK_VG_WRITE, NULL)) {
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log_error("Can't get lock for orphan PVs");
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return ECMD_FAILED;
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}
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dm_unescape_colons_and_at_signs(argv[i], NULL, NULL);
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if (!(pv = pvcreate_single(cmd, argv[i], &pp, 1))) {
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stack;
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ret = ECMD_FAILED;
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}
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unlock_vg(cmd, VG_ORPHANS);
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if (sigint_caught())
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return ret;
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}
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return ret;
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}
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