mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
cc21948339
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 "").
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/*
|
|
* Copyright (C) 2001 Sistina Software
|
|
*
|
|
* LVM is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* LVM is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with LVM; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
|
|
#include "tools.h"
|
|
|
|
static int vgreduce_single(struct volume_group *vg, struct physical_volume *pv);
|
|
|
|
int vgreduce(int argc, char **argv)
|
|
{
|
|
struct volume_group *vg;
|
|
char *vg_name;
|
|
|
|
if (!argc) {
|
|
log_error("Please give volume group name and "
|
|
"physical volume paths");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (argc == 1 && !arg_count(all_ARG)) {
|
|
log_error("Please enter physical volume paths or option -a");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (argc > 1 && arg_count(all_ARG)) {
|
|
log_error("Option -a and physical volume paths mutually "
|
|
"exclusive");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
vg_name = argv[0];
|
|
argv++;
|
|
argc--;
|
|
|
|
log_verbose("Finding volume group %s", vg_name);
|
|
if (!(vg = fid->ops->vg_read(fid, vg_name))) {
|
|
log_error("Volume group %s doesn't exist", vg_name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/******* Ignore active status
|
|
if (!(vg->status & ACTIVE)) {
|
|
log_error("Volume group %s is not active", vg_name);
|
|
return ECMD_FAILED;
|
|
}
|
|
*******/
|
|
|
|
if (!(vg->status & EXTENDABLE_VG)) {
|
|
log_error("Volume group %s is not reducable", vg_name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/* FIXME: Pass private structure through to all these functions */
|
|
/* and update in batch here? */
|
|
return process_each_pv(argc, argv, vg, vgreduce_single);
|
|
|
|
/******* FIXME
|
|
log_error ("no empty physical volumes found in volume group \"%s\"", vg_name);
|
|
|
|
log_verbose
|
|
("volume group \"%s\" will be reduced by %d physical volume%s",
|
|
vg_name, np, np > 1 ? "s" : "");
|
|
log_verbose ("reducing volume group \"%s\" by physical volume \"%s\"", vg_name, pv_names[p]);
|
|
|
|
log_print
|
|
("volume group \"%s\" %ssuccessfully reduced by physical volume%s:",
|
|
vg_name, error > 0 ? "NOT " : "", p > 1 ? "s" : "");
|
|
log_print("%s", pv_this[p]->pv_name);
|
|
********/
|
|
|
|
}
|
|
|
|
/* Or take pv_name instead? */
|
|
static int vgreduce_single(struct volume_group *vg, struct physical_volume *pv)
|
|
{
|
|
struct list *pvh;
|
|
const char *name = dev_name(pv->dev);
|
|
|
|
if (pv->pe_allocated) {
|
|
log_error("Physical volume %s still in use", name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/********* FIXME: Is this unnecessary after checking pe_allocated?
|
|
if (pv->lv_cur > 0) {
|
|
log_error ("can't reduce volume group \"%s\" by used physical volume \"%s\"", vg_name, error_pv_name);
|
|
}
|
|
*********/
|
|
|
|
if (vg->pv_count == 1) {
|
|
log_error("Can't remove final physical volume %s from "
|
|
"volume group %s", name, vg->name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
pvh = find_pv_in_vg(vg, name);
|
|
|
|
log_verbose("Removing %s from volume group %s", name, vg->name);
|
|
list_del(pvh);
|
|
*pv->vg_name = '\0';
|
|
vg->pv_count--;
|
|
vg->free_count -= pv->pe_count - pv->pe_allocated;
|
|
vg->extent_count -= pv->pe_count;
|
|
|
|
if (!(fid->ops->vg_write(fid, vg))) {
|
|
log_error("Removal of physical volume %s from %s failed",
|
|
name, vg->name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
if (!fid->ops->pv_write(fid, pv)) {
|
|
log_error("Failed to clear metadata from physical volume %s "
|
|
"after removal from %s", name, vg->name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
autobackup(vg);
|
|
|
|
log_print("Removed %s from volume group %s", name, vg->name);
|
|
|
|
return 0;
|
|
}
|