mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
145 lines
3.5 KiB
C
145 lines
3.5 KiB
C
/*
|
|
* Copyright (C) 2002-2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/*
|
|
* Changelog
|
|
*
|
|
* 05/02/2002 - First drop [HM]
|
|
*/
|
|
|
|
#include "tools.h"
|
|
|
|
int disks_found;
|
|
int parts_found;
|
|
int pv_disks_found;
|
|
int pv_parts_found;
|
|
int max_len;
|
|
|
|
static int _get_max_dev_name_len(struct cmd_context *cmd, struct dev_filter *filter)
|
|
{
|
|
int len = 0;
|
|
int maxlen = 0;
|
|
struct dev_iter *iter;
|
|
struct device *dev;
|
|
|
|
if (!(iter = dev_iter_create(filter, 1))) {
|
|
log_error("dev_iter_create failed");
|
|
return 0;
|
|
}
|
|
|
|
/* Do scan */
|
|
for (dev = dev_iter_get(cmd, iter); dev; dev = dev_iter_get(cmd, iter)) {
|
|
len = strlen(dev_name(dev));
|
|
if (len > maxlen)
|
|
maxlen = len;
|
|
}
|
|
dev_iter_destroy(iter);
|
|
|
|
return maxlen;
|
|
}
|
|
|
|
static void _count(struct device *dev, int *disks, int *parts)
|
|
{
|
|
int c = dev_name(dev)[strlen(dev_name(dev)) - 1];
|
|
|
|
if (!isdigit(c))
|
|
(*disks)++;
|
|
else
|
|
(*parts)++;
|
|
}
|
|
|
|
static void _print(struct cmd_context *cmd, const struct device *dev,
|
|
uint64_t size, const char *what)
|
|
{
|
|
log_print("%-*s [%15s] %s", max_len, dev_name(dev),
|
|
display_size(cmd, size), what ? : "");
|
|
}
|
|
|
|
static int _check_device(struct cmd_context *cmd, struct device *dev)
|
|
{
|
|
uint64_t size;
|
|
|
|
if (!dev_get_size(dev, &size)) {
|
|
log_error("Couldn't get size of \"%s\"", dev_name(dev));
|
|
size = 0;
|
|
}
|
|
_print(cmd, dev, size, NULL);
|
|
_count(dev, &disks_found, &parts_found);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int lvmdiskscan(struct cmd_context *cmd, int argc __attribute__((unused)),
|
|
char **argv __attribute__((unused)))
|
|
{
|
|
uint64_t size;
|
|
struct dev_iter *iter;
|
|
struct device *dev;
|
|
|
|
/* initialise these here to avoid problems with the lvm shell */
|
|
disks_found = 0;
|
|
parts_found = 0;
|
|
pv_disks_found = 0;
|
|
pv_parts_found = 0;
|
|
|
|
if (arg_is_set(cmd, lvmpartition_ARG))
|
|
log_warn("WARNING: only considering LVM devices");
|
|
|
|
/* Call before using dev_iter which uses filters which want bcache data. */
|
|
label_scan(cmd);
|
|
|
|
max_len = _get_max_dev_name_len(cmd, cmd->filter);
|
|
|
|
if (!(iter = dev_iter_create(cmd->filter, 0))) {
|
|
log_error("dev_iter_create failed");
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
for (dev = dev_iter_get(cmd, iter); dev; dev = dev_iter_get(cmd, iter)) {
|
|
if (lvmcache_has_dev_info(dev)) {
|
|
if (!dev_get_size(dev, &size)) {
|
|
log_error("Couldn't get size of \"%s\"",
|
|
dev_name(dev));
|
|
continue;
|
|
}
|
|
_print(cmd, dev, size, "LVM physical volume");
|
|
_count(dev, &pv_disks_found, &pv_parts_found);
|
|
continue;
|
|
}
|
|
/* If user just wants PVs we are done */
|
|
if (arg_is_set(cmd, lvmpartition_ARG))
|
|
continue;
|
|
|
|
/* What other device is it? */
|
|
if (!_check_device(cmd, dev))
|
|
continue;
|
|
}
|
|
dev_iter_destroy(iter);
|
|
|
|
/* Display totals */
|
|
if (!arg_is_set(cmd, lvmpartition_ARG)) {
|
|
log_print("%d disk%s",
|
|
disks_found, disks_found == 1 ? "" : "s");
|
|
log_print("%d partition%s",
|
|
parts_found, parts_found == 1 ? "" : "s");
|
|
}
|
|
log_print("%d LVM physical volume whole disk%s",
|
|
pv_disks_found, pv_disks_found == 1 ? "" : "s");
|
|
log_print("%d LVM physical volume%s",
|
|
pv_parts_found, pv_parts_found == 1 ? "" : "s");
|
|
|
|
return ECMD_PROCESSED;
|
|
}
|