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lvm2/tools/vgextend.c
Alasdair Kergon 013f27e3e6 Add lots of missing stack debug messages to tools.
Make readonly locking available as locking type 4.
Fix readonly locking to permit writeable global locks (for vgscan). (2.02.49)
2009-09-14 22:47:49 +00:00

77 lines
1.8 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "tools.h"
int vgextend(struct cmd_context *cmd, int argc, char **argv)
{
char *vg_name;
struct volume_group *vg = NULL;
int r = ECMD_FAILED;
if (!argc) {
log_error("Please enter volume group name and "
"physical volume(s)");
return EINVALID_CMD_LINE;
}
if (argc == 1) {
log_error("Please enter physical volume(s)");
return EINVALID_CMD_LINE;
}
vg_name = skip_dev_dir(cmd, argv[0], NULL);
argc--;
argv++;
log_verbose("Checking for volume group \"%s\"", vg_name);
vg = vg_read_for_update(cmd, vg_name, NULL, 0);
if (vg_read_error(vg)) {
vg_release(vg);
stack;
return ECMD_FAILED;
}
if (!lock_vol(cmd, VG_ORPHANS, LCK_VG_WRITE)) {
log_error("Can't get lock for orphan PVs");
unlock_and_release_vg(cmd, vg, vg_name);
return ECMD_FAILED;
}
if (!archive(vg))
goto_bad;
/* extend vg */
if (!vg_extend(vg, argc, argv))
goto_bad;
/* ret > 0 */
log_verbose("Volume group \"%s\" will be extended by %d new "
"physical volumes", vg_name, argc);
/* store vg on disk(s) */
if (!vg_write(vg) || !vg_commit(vg))
goto_bad;
backup(vg);
log_print("Volume group \"%s\" successfully extended", vg_name);
r = ECMD_PROCESSED;
bad:
unlock_vg(cmd, VG_ORPHANS);
unlock_and_release_vg(cmd, vg, vg_name);
return r;
}