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13cb94909c
o Skip autobackup when in test mode. o Set test mode from config file. o Create system/backup dirs if not present (unless LVM_SYSTEM_DIR holds "").
216 lines
5.5 KiB
C
216 lines
5.5 KiB
C
/*
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* Copyright (C) 2001 Sistina Software
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*
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* LVM 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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* LVM 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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static int vgchange_single(const char *vg_name);
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void vgchange_available(struct volume_group *vg);
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void vgchange_allocation(struct volume_group *vg);
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void vgchange_logicalvolume(struct volume_group *vg);
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int vgchange(int argc, char **argv)
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{
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if (!(arg_count(available_ARG) + arg_count(logicalvolume_ARG) +
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arg_count(allocation_ARG))) {
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log_error("One of -a, -l or -x options required");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(available_ARG) + arg_count(logicalvolume_ARG) +
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arg_count(allocation_ARG) > 1) {
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log_error("Only one of -a, -l or -x options allowed");
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return EINVALID_CMD_LINE;
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}
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if (arg_count(available_ARG) == 1 && arg_count(autobackup_ARG)) {
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log_error("-A option not necessary with -a option");
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return EINVALID_CMD_LINE;
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}
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return process_each_vg(argc, argv, &vgchange_single);
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}
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static int vgchange_single(const char *vg_name)
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{
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struct volume_group *vg;
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if (!(vg = fid->ops->vg_read(fid, vg_name))) {
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log_error("Unable to find volume group %s", vg_name);
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return ECMD_FAILED;
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}
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if (vg->status & EXPORTED_VG) {
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log_error("Volume group %s is exported", vg_name);
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return ECMD_FAILED;
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}
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if (arg_count(available_ARG)) {
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vgchange_available(vg);
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}
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if (arg_count(allocation_ARG)) {
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vgchange_allocation(vg);
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}
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if (arg_count(logicalvolume_ARG)) {
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vgchange_logicalvolume(vg);
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}
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return 0;
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}
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void vgchange_available(struct volume_group *vg)
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{
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int lv_open, lv_active;
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struct list *lvh;
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int available = !strcmp(arg_str_value(available_ARG, "n"), "y");
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/* Ignore existing disk status */
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if (available && (vg->status & ACTIVE))
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log_verbose("Volume group %s is already active on disk",
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vg->name);
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if (!available && !(vg->status & ACTIVE))
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log_verbose("Volume group %s is already inactive on disk",
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vg->name);
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/* FIXME: Force argument to deactivate them? */
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if (!available && (lv_open = lvs_in_vg_opened(vg))) {
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log_error("Can't deactivate volume group '%s' with %d open "
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"logical volume(s)", vg->name, lv_open);
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return;
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}
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if (available && (lv_active = lvs_in_vg_activated(vg)))
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log_verbose("%d logical volume(s) in volume group %s "
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"already active", lv_active, vg->name);
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if (available) {
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vg->status |= ACTIVE;
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list_iterate(lvh, &vg->lvs)
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list_item(lvh, struct lv_list)->lv.status
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|= ACTIVE;
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} else {
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vg->status &= ~ACTIVE;
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list_iterate(lvh, &vg->lvs)
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list_item(lvh, struct lv_list)->lv.status
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&= ~ACTIVE;
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}
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if (!fid->ops->vg_write(fid, vg))
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return;
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autobackup(vg);
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if (available && (lv_open = activate_lvs_in_vg(vg)))
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log_verbose("Activated %d logical volumes in "
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"volume group %s", lv_open, vg->name);
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if (!available && (lv_open = deactivate_lvs_in_vg(vg)))
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log_verbose("Deactivated %d logical volumes in "
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"volume group %s", lv_open, vg->name);
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log_print("Volume group %s updated", vg->name);
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return;
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}
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void vgchange_allocation(struct volume_group *vg)
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{
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int extendable = !strcmp(arg_str_value(allocation_ARG, "n"), "y");
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if (extendable && (vg->status & EXTENDABLE_VG)) {
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log_error("Volume group %s is already extendable", vg->name);
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return;
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}
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if (!extendable && !(vg->status & EXTENDABLE_VG)) {
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log_error("Volume group %s is already not extendable",
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vg->name);
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return;
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}
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if (extendable)
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vg->status |= EXTENDABLE_VG;
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else
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vg->status &= ~EXTENDABLE_VG;
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if (!fid->ops->vg_write(fid, vg))
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return;
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autobackup(vg);
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log_print("Volume group %s successfully changed", vg->name);
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return;
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}
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void vgchange_logicalvolume(struct volume_group *vg)
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{
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int max_lv = arg_int_value(logicalvolume_ARG, 0);
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if (vg->status & ACTIVE) {
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log_error("MaxLogicalVolume can't be changed in "
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"active volume group '%s'", vg->name);
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return;
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}
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if (!(vg->status & EXTENDABLE_VG)) {
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log_error("Volume group '%s' must be extendable "
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"to change MaxLogicalVolume", vg->name);
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return;
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}
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if (max_lv < vg->lv_count) {
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log_error("MaxLogicalVolume is less than the current number "
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"%d of logical volume(s) for '%s'", vg->lv_count,
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vg->name);
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return;
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}
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/************** FIXME To be handled within vg_write
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for (p = 0, pp = *vg->pv; p < vg->pv_max; p++, pp++) {
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if (pp != NULL) {
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pp->lv_on_disk.size =
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round_up((max_lv + 1) * sizeof(lv_disk_t), LVM_VGDA_ALIGN);
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pe_on_disk_base_sav = pp->pe_on_disk.base;
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pp->pe_on_disk.base = pp->lv_on_disk.base + pp->lv_on_disk.size;
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pp->pe_on_disk.size -= pp->pe_on_disk.base - pe_on_disk_base_sav;
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if (LVM_VGDA_SIZE(pp) / SECTOR_SIZE >
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(pp->pv_size & ~LVM_PE_ALIGN) - pp->pe_total * pp->pe_size) {
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log_error("extended VGDA would overlap first physical extent");
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return LVM_E_PE_OVERLAP;
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}
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}
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}
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****************/
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vg->max_lv = max_lv;
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if (!fid->ops->vg_write(fid, vg))
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return;
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autobackup(vg);
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log_print("Volume group %s successfully changed", vg->name);
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return;
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}
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