external/gpl2/lvm2/dist/tools/vgscan.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of LVM2.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU Lesser General Public License v.2.1.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #include "tools.h"
  19
  20 static int vgscan_single(struct cmd_context *cmd, const char *vg_name,
  21                          struct volume_group *vg,
  22                          void *handle __attribute((unused)))
  23 {
  24         log_print("Found %svolume group \"%s\" using metadata type %s",
  25                   vg_is_exported(vg) ? "exported " : "", vg_name,
  26                   vg->fid->fmt->name);
  27
  28         check_current_backup(vg);
  29
  30         return ECMD_PROCESSED;
  31 }
  32
  33 int vgscan(struct cmd_context *cmd, int argc, char **argv)
  34 {
  35         int maxret, ret;
  36
  37         if (argc) {
  38                 log_error("Too many parameters on command line");
  39                 return EINVALID_CMD_LINE;
  40         }
  41
  42         if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_WRITE)) {
  43                 log_error("Unable to obtain global lock.");
  44                 return ECMD_FAILED;
  45         }
  46
  47         persistent_filter_wipe(cmd->filter);
  48         lvmcache_destroy(cmd, 1);
  49
  50         log_print("Reading all physical volumes.  This may take a while...");
  51
  52         maxret = process_each_vg(cmd, argc, argv, 0, NULL,
  53                                  &vgscan_single);
  54
  55         if (arg_count(cmd, mknodes_ARG)) {
  56                 ret = vgmknodes(cmd, argc, argv);
  57                 if (ret > maxret)
  58                         maxret = ret;
  59         }
  60
  61         unlock_vg(cmd, VG_GLOBAL);
  62         return maxret;
  63 }