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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 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"
#include "lvmetad.h"
#include "lvmcache.h"
int pv_max_name_len = 0;
int vg_max_name_len = 0;
static void _pvscan_display_single(struct cmd_context *cmd,
struct physical_volume *pv,
void *handle __attribute__((unused)))
{
char uuid[64] __attribute__((aligned(8)));
unsigned vg_name_len = 0;
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", pv_dev_name(pv));
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(pv)) + 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, pv_dev_name(pv), uuid);
} else {
sprintf(pv_tmp_name, "%s", pv_dev_name(pv));
}
if (is_orphan(pv)) {
log_print("PV %-*s %-*s %s [%s]",
pv_max_name_len, pv_tmp_name,
vg_max_name_len, " ",
pv->fmt ? pv->fmt->name : " ",
display_size(cmd, pv_size(pv)));
return;
}
if (pv_status(pv) & EXPORTED_VG) {
strncpy(vg_name_this, pv_vg_name(pv), 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,
display_size(cmd, (uint64_t) pv_pe_count(pv) *
pv_pe_size(pv)),
display_size(cmd, (uint64_t) (pv_pe_count(pv) -
pv_pe_alloc_count(pv))
* pv_pe_size(pv)));
return;
}
sprintf(vg_tmp_name, "%s", pv_vg_name(pv));
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 : " ",
display_size(cmd, (uint64_t) pv_pe_count(pv) *
pv_pe_size(pv)),
display_size(cmd, (uint64_t) (pv_pe_count(pv) -
pv_pe_alloc_count(pv)) *
pv_pe_size(pv)));
}
static int _pvscan_lvmetad(struct cmd_context *cmd, int argc, char **argv)
{
int ret = ECMD_PROCESSED;
if (!argc) {
log_error("List of Physical Volumes to be cached by the lvmetad daemon required.");
return EINVALID_CMD_LINE;
}
if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_READ)) {
log_error("Unable to obtain global lock.");
return ECMD_FAILED;
}
log_verbose("Using physical volume(s) on command line");
while (argc--) {
if (!pvscan_lvmetad_single(cmd, *argv++)) {
ret = ECMD_FAILED;
break;
}
if (sigint_caught())
break;
}
unlock_vg(cmd, VG_GLOBAL);
return ret;
}
int pvscan(struct cmd_context *cmd, int argc, char **argv)
{
int new_pvs_found = 0;
int pvs_found = 0;
struct dm_list *pvslist;
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, cache_ARG))
return _pvscan_lvmetad(cmd, argc, argv);
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_warn("WARNING: only considering physical volumes %s",
arg_count(cmd, exported_ARG) ?
"of exported volume group(s)" : "in no volume group");
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);
log_verbose("Walking through all physical volumes");
if (!(pvslist = get_pvs(cmd))) {
unlock_vg(cmd, VG_GLOBAL);
stack;
return ECMD_FAILED;
}
/* eliminate exported/new if required */
dm_list_iterate_items(pvl, pvslist) {
pv = pvl->pv;
if ((arg_count(cmd, exported_ARG)
&& !(pv_status(pv) & EXPORTED_VG))
|| (arg_count(cmd, novolumegroup_ARG) && (!is_orphan(pv)))) {
dm_list_del(&pvl->list);
continue;
}
/* Also check for MD use? */
/*******
if (MAJOR(pv_create_kdev_t(pv[p]->pv_name)) != MD_MAJOR) {
log_warn
("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 (is_orphan(pv)) {
new_pvs_found++;
size_new += pv_size(pv);
size_total += pv_size(pv);
} else
size_total += (uint64_t) pv_pe_count(pv) * pv_pe_size(pv);
}
/* find maximum pv name length */
pv_max_name_len = vg_max_name_len = 0;
dm_list_iterate_items(pvl, pvslist) {
pv = pvl->pv;
len = strlen(pv_dev_name(pv));
if (pv_max_name_len < len)
pv_max_name_len = len;
len = strlen(pv_vg_name(pv));
if (vg_max_name_len < len)
vg_max_name_len = len;
}
pv_max_name_len += 2;
vg_max_name_len += 2;
dm_list_iterate_items(pvl, pvslist) {
_pvscan_display_single(cmd, pvl->pv, NULL);
free_pv_fid(pvl->pv);
}
if (!pvs_found) {
log_print("No matching physical volumes found");
unlock_vg(cmd, VG_GLOBAL);
return ECMD_PROCESSED;
}
log_print("Total: %d [%s] / in use: %d [%s] / in no VG: %d [%s]",
pvs_found,
display_size(cmd, size_total),
pvs_found - new_pvs_found,
display_size(cmd, (size_total - size_new)),
new_pvs_found, display_size(cmd, size_new));
unlock_vg(cmd, VG_GLOBAL);
return ECMD_PROCESSED;
}
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