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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.
75 lines
1.9 KiB
C
75 lines
1.9 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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static int vgscan_single(struct cmd_context *cmd, const char *vg_name,
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struct volume_group *vg,
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void *handle __attribute__((unused)))
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{
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log_print_unless_silent("Found %svolume group \"%s\" using metadata type %s",
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vg_is_exported(vg) ? "exported " : "", vg_name,
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vg->fid->fmt->name);
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check_current_backup(vg);
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return ECMD_PROCESSED;
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}
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int vgscan(struct cmd_context *cmd, int argc, char **argv)
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{
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int maxret, ret;
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if (argc) {
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log_error("Too many parameters on command line");
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return EINVALID_CMD_LINE;
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}
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if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_WRITE, NULL)) {
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log_error("Unable to obtain global lock.");
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return ECMD_FAILED;
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}
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if (cmd->filter->wipe)
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cmd->filter->wipe(cmd->filter);
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lvmcache_destroy(cmd, 1);
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if (arg_count(cmd, cache_ARG)) {
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if (lvmetad_active()) {
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if (!lvmetad_pvscan_all_devs(cmd, NULL))
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return ECMD_FAILED;
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}
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else {
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log_error("Cannot proceed since lvmetad is not active.");
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unlock_vg(cmd, VG_GLOBAL);
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return ECMD_FAILED;
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}
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}
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log_print_unless_silent("Reading all physical volumes. This may take a while...");
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maxret = process_each_vg(cmd, argc, argv, 0, NULL,
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&vgscan_single);
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if (arg_count(cmd, mknodes_ARG)) {
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ret = vgmknodes(cmd, argc, argv);
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if (ret > maxret)
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maxret = ret;
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}
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unlock_vg(cmd, VG_GLOBAL);
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return maxret;
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}
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