mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
e6923120b9
We must hold the VG_ORPHAN lock until we commit to disk. Otherwise,
we risk a race condition on vgcreate / vgextend. Reverts the following
commit:
commit 72a41480ba
Author: Dave Wysochanski <dwysocha@redhat.com>
Date: Fri Jul 10 20:09:21 2009 +0000
Move orphan lock obtain/release inside vg_extend().
With this change we now have vgcreate/vgextend liblvm functions.
Note that this changes the lock order of the following functions as the
orphan lock is now obtained first. With our policy of non-blocking
second locks, this should not be a problem.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
82 lines
1.9 KiB
C
82 lines
1.9 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);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/********** FIXME
|
|
log_print("maximum logical volume size is %s",
|
|
(dummy = lvm_show_size(LVM_LV_SIZE_MAX(vg) / 2, LONG)));
|
|
dm_free(dummy);
|
|
dummy = NULL;
|
|
**********/
|
|
|
|
if (!archive(vg))
|
|
goto error;
|
|
|
|
if (!lock_vol(cmd, VG_ORPHANS, LCK_VG_WRITE)) {
|
|
log_error("Can't get lock for orphan PVs");
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/* extend vg */
|
|
if (!vg_extend(vg, argc, argv))
|
|
goto error;
|
|
|
|
/* 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 error;
|
|
|
|
backup(vg);
|
|
log_print("Volume group \"%s\" successfully extended", vg_name);
|
|
r = ECMD_PROCESSED;
|
|
|
|
error:
|
|
unlock_vg(cmd, VG_ORPHANS);
|
|
unlock_and_release_vg(cmd, vg, vg_name);
|
|
return r;
|
|
}
|