mirror of
git://sourceware.org/git/lvm2.git
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167 lines
4.2 KiB
C
167 lines
4.2 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2007 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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#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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struct volume_group *vg;
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const char *tag;
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alloc_policy_t alloc;
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int clustered;
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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 = skip_dev_dir(cmd, argv[0], NULL);
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max_lv = arg_uint_value(cmd, maxlogicalvolumes_ARG, 0);
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max_pv = arg_uint_value(cmd, maxphysicalvolumes_ARG, 0);
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alloc = arg_uint_value(cmd, alloc_ARG, ALLOC_NORMAL);
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if (alloc == ALLOC_INHERIT) {
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log_error("Volume Group allocation policy cannot inherit "
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"from anything");
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return EINVALID_CMD_LINE;
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}
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if (!(cmd->fmt->features & FMT_UNLIMITED_VOLS)) {
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if (!max_lv)
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max_lv = 255;
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if (!max_pv)
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max_pv = 255;
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if (max_lv > 255 || max_pv > 255) {
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log_error("Number of volumes may not exceed 255");
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return EINVALID_CMD_LINE;
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}
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}
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if (arg_sign_value(cmd, physicalextentsize_ARG, 0) == SIGN_MINUS) {
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log_error("Physical extent size may not be negative");
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return EINVALID_CMD_LINE;
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}
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if (arg_sign_value(cmd, maxlogicalvolumes_ARG, 0) == SIGN_MINUS) {
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log_error("Max Logical Volumes may not be negative");
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return EINVALID_CMD_LINE;
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}
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if (arg_sign_value(cmd, maxphysicalvolumes_ARG, 0) == SIGN_MINUS) {
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log_error("Max Physical Volumes may not be negative");
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return EINVALID_CMD_LINE;
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}
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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 (!extent_size) {
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log_error("Physical extent size may not be zero");
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return EINVALID_CMD_LINE;
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}
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if (!validate_vg_name(cmd, vg_name)) {
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log_error("New volume group name \"%s\" is invalid", 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, alloc,
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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_warn("WARNING: Setting maxlogicalvolumes to %d "
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"(0 means unlimited)", vg->max_lv);
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if (max_pv != vg->max_pv)
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log_warn("WARNING: Setting maxphysicalvolumes to %d "
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"(0 means unlimited)", vg->max_pv);
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if (arg_count(cmd, addtag_ARG)) {
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if (!(tag = arg_str_value(cmd, addtag_ARG, NULL))) {
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log_error("Failed to get tag");
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return ECMD_FAILED;
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}
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if (!(vg->fid->fmt->features & FMT_TAGS)) {
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log_error("Volume group format does not support tags");
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return ECMD_FAILED;
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}
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if (!str_list_add(cmd->mem, &vg->tags, tag)) {
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log_error("Failed to add tag %s to volume group %s",
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tag, vg_name);
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return ECMD_FAILED;
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}
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}
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if (arg_count(cmd, clustered_ARG))
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clustered = !strcmp(arg_str_value(cmd, clustered_ARG, "n"), "y");
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else
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/* Default depends on current locking type */
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clustered = locking_is_clustered();
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if (clustered)
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vg->status |= CLUSTERED;
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else
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vg->status &= ~CLUSTERED;
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if (!lock_vol(cmd, ORPHAN, 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, ORPHAN);
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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, ORPHAN);
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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, ORPHAN);
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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, ORPHAN);
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backup(vg);
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log_print("Volume group \"%s\" successfully created", vg->name);
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return ECMD_PROCESSED;
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}
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