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/*
* 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"
int pv_max_name_len = 0;
int vg_max_name_len = 0;
void pvscan_display_single(struct cmd_context *cmd, struct physical_volume *pv,
void *handle)
{
char uuid[64];
int vg_name_len = 0;
char *s1, *s2;
char pv_tmp_name[NAME_LEN] = { 0, };
char vg_tmp_name[NAME_LEN] = { 0, };
char vg_name_this[NAME_LEN] = { 0, };
/* short listing? */
if (arg_count(cmd, short_ARG) > 0) {
log_print("%s", dev_name(pv->dev));
return;
}
if (arg_count(cmd, verbose_ARG) > 1) {
/* FIXME As per pv_display! Drop through for now. */
/* pv_show(pv); */
/* FIXME - Moved to Volume Group structure */
/* log_print("System Id %s", pv->vg->system_id); */
/* log_print(" "); */
/* return; */
}
memset(pv_tmp_name, 0, sizeof(pv_tmp_name));
vg_name_len = strlen(pv->vg_name) + 1;
if (arg_count(cmd, uuid_ARG)) {
if (!id_write_format(&pv->id, uuid, sizeof(uuid))) {
stack;
return;
}
sprintf(pv_tmp_name, "%-*s with UUID %s",
pv_max_name_len - 2, dev_name(pv->dev), uuid);
} else {
sprintf(pv_tmp_name, "%s", dev_name(pv->dev));
}
if (!*pv->vg_name) {
log_print("PV %-*s %-*s %s [%s]",
pv_max_name_len, pv_tmp_name,
vg_max_name_len, " ",
pv->fmt ? pv->fmt->name : " ",
(s1 = display_size(pv->size / 2, SIZE_SHORT)));
dbg_free(s1);
return;
}
if (pv->status & EXPORTED_VG) {
strncpy(vg_name_this, pv->vg_name, vg_name_len);
log_print("PV %-*s is in exported VG %s "
"[%s / %s free]",
pv_max_name_len, pv_tmp_name,
vg_name_this, (s1 =
display_size(pv->pe_count *
pv->pe_size / 2,
SIZE_SHORT)),
(s2 = display_size((pv->pe_count - pv->pe_alloc_count)
* pv->pe_size / 2, SIZE_SHORT)));
dbg_free(s1);
dbg_free(s2);
return;
}
sprintf(vg_tmp_name, "%s", pv->vg_name);
log_print
("PV %-*s VG %-*s %s [%s / %s free]", pv_max_name_len,
pv_tmp_name, vg_max_name_len, vg_tmp_name,
pv->fmt ? pv->fmt->name : " ",
(s1 = display_size(pv->pe_count * pv->pe_size / 2, SIZE_SHORT)),
(s2 =
display_size((pv->pe_count - pv->pe_alloc_count) * pv->pe_size /
2, SIZE_SHORT)));
dbg_free(s1);
dbg_free(s2);
return;
}
int pvscan(struct cmd_context *cmd, int argc, char **argv)
{
int new_pvs_found = 0;
int pvs_found = 0;
char *s1, *s2, *s3;
struct list *pvs;
struct list *pvh;
struct pv_list *pvl;
struct physical_volume *pv;
uint64_t size_total = 0;
uint64_t size_new = 0;
int len = 0;
pv_max_name_len = 0;
vg_max_name_len = 0;
if (arg_count(cmd, novolumegroup_ARG) && arg_count(cmd, exported_ARG)) {
log_error("Options -e and -n are incompatible");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, exported_ARG) || arg_count(cmd, novolumegroup_ARG))
log_print("WARNING: only considering physical volumes %s",
arg_count(cmd, exported_ARG) ?
"of exported volume group(s)" : "in no volume group");
log_verbose("Wiping cache of LVM-capable devices");
persistent_filter_wipe(cmd->filter);
log_verbose("Wiping internal cache");
cache_destroy();
log_verbose("Walking through all physical volumes");
if (!(pvs = get_pvs(cmd)))
return ECMD_FAILED;
/* eliminate exported/new if required */
list_iterate(pvh, pvs) {
pvl = list_item(pvh, struct pv_list);
pv = pvl->pv;
if ((arg_count(cmd, exported_ARG)
&& !(pv->status & EXPORTED_VG))
|| (arg_count(cmd, novolumegroup_ARG) && (*pv->vg_name))) {
list_del(&pvl->list);
continue;
}
/* Also check for MD use? */
/*******
if (MAJOR(pv_create_kdev_t(pv[p]->pv_name)) != MD_MAJOR) {
log_print
("WARNING: physical volume \"%s\" belongs to a meta device",
pv[p]->pv_name);
}
if (MAJOR(pv[p]->pv_dev) != MD_MAJOR)
continue;
********/
pvs_found++;
if (!*pv->vg_name) {
new_pvs_found++;
size_new += pv->size;
size_total += pv->size;
} else
size_total += (pv->pe_count - pv->pe_alloc_count)
* pv->pe_size;
}
/* find maximum pv name length */
pv_max_name_len = vg_max_name_len = 0;
list_iterate(pvh, pvs) {
pv = list_item(pvh, struct pv_list)->pv;
len = strlen(dev_name(pv->dev));
if (pv_max_name_len < len)
pv_max_name_len = len;
len = strlen(pv->vg_name);
if (vg_max_name_len < len)
vg_max_name_len = len;
}
pv_max_name_len += 2;
vg_max_name_len += 2;
list_iterate(pvh, pvs)
pvscan_display_single(cmd, list_item(pvh, struct pv_list)->pv,
NULL);
if (!pvs_found) {
log_print("No matching physical volumes found");
return 0;
}
log_print("Total: %d [%s] / in use: %d [%s] / in no VG: %d [%s]",
pvs_found,
(s1 = display_size(size_total / 2, SIZE_SHORT)),
pvs_found - new_pvs_found,
(s2 =
display_size((size_total - size_new) / 2, SIZE_SHORT)),
new_pvs_found, (s3 = display_size(size_new / 2, SIZE_SHORT)));
dbg_free(s1);
dbg_free(s2);
dbg_free(s3);
return 0;
}
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