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lvm2/tools/vgscan.c

75 lines
2.0 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 vgscan_single(struct cmd_context *cmd, const char *vg_name,
struct volume_group *vg, int consistent, void *handle)
{
if (!vg) {
log_error("Volume group \"%s\" not found", vg_name);
return ECMD_FAILED;
}
if (!consistent) {
unlock_vg(cmd, vg_name);
dev_close_all();
log_error("Volume group \"%s\" inconsistent", vg_name);
/* Don't allow partial switch to this program */
if (!(vg = recover_vg(cmd, vg_name, LCK_VG_WRITE)))
return ECMD_FAILED;
}
log_print("Found %svolume group \"%s\" using metadata type %s",
(vg->status & EXPORTED_VG) ? "exported " : "", vg_name,
vg->fid->fmt->name);
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;
}
log_verbose("Wiping cache of LVM-capable devices");
persistent_filter_wipe(cmd->filter);
log_verbose("Wiping internal cache");
lvmcache_destroy();
log_print("Reading all physical volumes. This may take a while...");
maxret = process_each_vg(cmd, argc, argv, LCK_VG_READ, 1, NULL,
&vgscan_single);
if (arg_count(cmd, mknodes_ARG)) {
ret = vgmknodes(cmd, argc, argv);
if (ret > maxret)
maxret = ret;
}
return maxret;
}