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128 lines
3.1 KiB
C
128 lines
3.1 KiB
C
/*
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* Copyright (C) 2001 Sistina Software
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*
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* vgcreate is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* vgcreate is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LVM; see the file COPYING. If not, write to
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* the Free Software Foundation, 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include "tools.h"
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/* FIXME From config file? */
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#define DEFAULT_PV 256
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#define DEFAULT_LV 256
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#define DEFAULT_EXTENT 4096 /* In KB */
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int vgcreate(struct cmd_context *cmd, int argc, char **argv)
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{
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size_t max_lv, max_pv;
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uint32_t extent_size;
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char *vg_name;
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char vg_path[PATH_MAX];
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struct volume_group *vg;
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if (!argc) {
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log_error("Please provide volume group name and "
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"physical volumes");
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return EINVALID_CMD_LINE;
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}
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if (argc == 1) {
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log_error("Please enter physical volume name(s)");
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return EINVALID_CMD_LINE;
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}
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vg_name = argv[0];
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max_lv = arg_uint_value(cmd, maxlogicalvolumes_ARG, DEFAULT_LV);
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max_pv = arg_uint_value(cmd, maxphysicalvolumes_ARG, DEFAULT_PV);
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/* Units of 512-byte sectors */
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extent_size =
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arg_uint_value(cmd, physicalextentsize_ARG, DEFAULT_EXTENT) * 2;
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if (max_lv < 1) {
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log_error("maxlogicalvolumes too low");
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return EINVALID_CMD_LINE;
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}
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if (max_pv < 1) {
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log_error("maxphysicalvolumes too low");
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return EINVALID_CMD_LINE;
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}
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/* Strip dev_dir if present */
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if (!strncmp(vg_name, cmd->dev_dir, strlen(cmd->dev_dir)))
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vg_name += strlen(cmd->dev_dir);
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snprintf(vg_path, PATH_MAX, "%s%s", cmd->dev_dir, vg_name);
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if (path_exists(vg_path)) {
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log_error("%s: already exists in filesystem", vg_path);
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return ECMD_FAILED;
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}
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if (!validate_name(vg_name)) {
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log_error("New volume group name \"%s\" has invalid characters",
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vg_name);
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return ECMD_FAILED;
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}
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/* Create the new VG */
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if (!(vg = vg_create(cmd, vg_name, extent_size, max_pv, max_lv,
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argc - 1, argv + 1)))
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return ECMD_FAILED;
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if (max_lv != vg->max_lv)
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log_error("Warning: Setting maxlogicalvolumes to %d",
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vg->max_lv);
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if (max_pv != vg->max_pv)
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log_error("Warning: Setting maxphysicalvolumes to %d",
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vg->max_pv);
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if (!lock_vol(cmd, "", LCK_VG_WRITE)) {
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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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if (!lock_vol(cmd, vg_name, LCK_VG_WRITE | LCK_NONBLOCK)) {
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log_error("Can't get lock for %s", vg_name);
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unlock_vg(cmd, "");
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return ECMD_FAILED;
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}
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if (!archive(vg)) {
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unlock_vg(cmd, vg_name);
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unlock_vg(cmd, "");
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return ECMD_FAILED;
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}
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/* Store VG on disk(s) */
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if (!vg_write(vg) || !vg_commit(vg)) {
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unlock_vg(cmd, vg_name);
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unlock_vg(cmd, "");
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return ECMD_FAILED;
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}
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unlock_vg(cmd, vg_name);
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unlock_vg(cmd, "");
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backup(vg);
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log_print("Volume group \"%s\" successfully created", vg->name);
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return 0;
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}
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