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lvm2/tools/vgscan.c
Alasdair G Kergon 438e0050df config: add silent mode
Accept -q as the short form of --quiet.
Suppress non-essential standard output if -q is given twice.
Treat log/silent in lvm.conf as equivalent to -qq.
Review all log_print messages and change some to
log_print_unless_silent.

When silent, the following commands still produce output:
dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck, pvdisplay,
pvs, version, vgcfgrestore -l, vgdisplay, vgs.
[Needs checking.]

Non-essential messages are shifted from log level 4 to log level 5
for syslog and lvm2_log_fn purposes.
2012-08-25 20:35:48 +01:00

82 lines
2.1 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"
static int _lvmetad;
static int vgscan_single(struct cmd_context *cmd, const char *vg_name,
struct volume_group *vg,
void *handle __attribute__((unused)))
{
log_print_unless_silent("Found %svolume group \"%s\" using metadata type %s",
vg_is_exported(vg) ? "exported " : "", vg_name,
vg->fid->fmt->name);
check_current_backup(vg);
/* keep lvmetad up to date, restore the "active" state temporarily */
lvmetad_set_active(_lvmetad);
if (!lvmetad_vg_update(vg))
stack;
lvmetad_set_active(0);
return ECMD_PROCESSED;
}
int vgscan(struct cmd_context *cmd, int argc, char **argv)
{
int maxret, ret;
if (argc) {
log_error("Too many parameters on command line");
return EINVALID_CMD_LINE;
}
if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_WRITE)) {
log_error("Unable to obtain global lock.");
return ECMD_FAILED;
}
persistent_filter_wipe(cmd->filter);
lvmcache_destroy(cmd, 1);
_lvmetad = lvmetad_active();
if (arg_count(cmd, cache_ARG)) {
if (_lvmetad)
lvmetad_set_active(0); /* do not rely on lvmetad info */
else {
log_error("Cannot proceed since lvmetad is not active.");
unlock_vg(cmd, VG_GLOBAL);
return ECMD_FAILED;
}
}
log_print_unless_silent("Reading all physical volumes. This may take a while...");
maxret = process_each_vg(cmd, argc, argv, 0, NULL,
&vgscan_single);
if (arg_count(cmd, mknodes_ARG)) {
ret = vgmknodes(cmd, argc, argv);
if (ret > maxret)
maxret = ret;
}
lvmetad_set_active(_lvmetad); /* restore */
unlock_vg(cmd, VG_GLOBAL);
return maxret;
}