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lvm2/liblvm/lvm_pv.c
Zdenek Kabelac eae8784ae2 Remove duplicate test
Tested condition has been already evaluated before
For strlen() code has already excluded <ID_LEN.
For repairing, already tested (!argc && !repairing) before.
2012-02-08 11:41:18 +00:00

130 lines
2.8 KiB
C

/*
* Copyright (C) 2008,2009 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 "lib.h"
#include "metadata.h"
#include "lvm-string.h"
#include "lvm_misc.h"
#include "lvm2app.h"
const char *lvm_pv_get_uuid(const pv_t pv)
{
return pv_uuid_dup(pv);
}
const char *lvm_pv_get_name(const pv_t pv)
{
return dm_pool_strndup(pv->vg->vgmem,
(const char *)pv_dev_name(pv), NAME_LEN + 1);
}
uint64_t lvm_pv_get_mda_count(const pv_t pv)
{
return (uint64_t) pv_mda_count(pv);
}
uint64_t lvm_pv_get_dev_size(const pv_t pv)
{
return (uint64_t) SECTOR_SIZE * pv_dev_size(pv);
}
uint64_t lvm_pv_get_size(const pv_t pv)
{
return (uint64_t) SECTOR_SIZE * pv_size_field(pv);
}
uint64_t lvm_pv_get_free(const pv_t pv)
{
return (uint64_t) SECTOR_SIZE * pv_free(pv);
}
struct lvm_property_value lvm_pv_get_property(const pv_t pv, const char *name)
{
return get_property(pv, NULL, NULL, NULL, NULL, name);
}
struct lvm_property_value lvm_pvseg_get_property(const pvseg_t pvseg,
const char *name)
{
return get_property(NULL, NULL, NULL, NULL, pvseg, name);
}
struct dm_list *lvm_pv_list_pvsegs(pv_t pv)
{
struct dm_list *list;
pvseg_list_t *pvseg;
struct pv_segment *pvl;
if (dm_list_empty(&pv->segments))
return NULL;
if (!(list = dm_pool_zalloc(pv->vg->vgmem, sizeof(*list)))) {
log_errno(ENOMEM, "Memory allocation fail for dm_list.");
return NULL;
}
dm_list_init(list);
dm_list_iterate_items(pvl, &pv->segments) {
if (!(pvseg = dm_pool_zalloc(pv->vg->vgmem, sizeof(*pvseg)))) {
log_errno(ENOMEM,
"Memory allocation fail for lvm_pvseg_list.");
return NULL;
}
pvseg->pvseg = pvl;
dm_list_add(list, &pvseg->list);
}
return list;
}
pv_t lvm_pv_from_name(vg_t vg, const char *name)
{
struct pv_list *pvl;
dm_list_iterate_items(pvl, &vg->pvs) {
if (!strcmp(name, pv_dev_name(pvl->pv)))
return pvl->pv;
}
return NULL;
}
pv_t lvm_pv_from_uuid(vg_t vg, const char *uuid)
{
struct pv_list *pvl;
struct id id;
if (strlen(uuid) < ID_LEN) {
log_errno (EINVAL, "Invalid UUID string length");
return NULL;
}
if (!id_read_format(&id, uuid)) {
log_errno(EINVAL, "Invalid UUID format.");
return NULL;
}
dm_list_iterate_items(pvl, &vg->pvs) {
if (id_equal(&id, &pvl->pv->id))
return pvl->pv;
}
return NULL;
}
int lvm_pv_resize(const pv_t pv, uint64_t new_size)
{
/* FIXME: add pv resize code here */
log_error("NOT IMPLEMENTED YET");
return -1;
}