mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
077a6755ff
Move the free_vg() to vg.c and replace free_vg with release_vg and make the _free_vg internal. Patch is needed for sharing VG in vginfo cache so the release_vg function name is a better fit here.
370 lines
7.0 KiB
C
370 lines
7.0 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 "toolcontext.h"
|
|
#include "metadata.h"
|
|
#include "archiver.h"
|
|
#include "locking.h"
|
|
#include "lvmcache.h"
|
|
#include "lvm_misc.h"
|
|
#include "lvm2app.h"
|
|
|
|
int lvm_vg_add_tag(vg_t vg, const char *tag)
|
|
{
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (!vg_change_tag(vg, tag, 1))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
int lvm_vg_remove_tag(vg_t vg, const char *tag)
|
|
{
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (!vg_change_tag(vg, tag, 0))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
vg_t lvm_vg_create(lvm_t libh, const char *vg_name)
|
|
{
|
|
struct volume_group *vg;
|
|
|
|
vg = vg_create((struct cmd_context *)libh, vg_name);
|
|
/* FIXME: error handling is still TBD */
|
|
if (vg_read_error(vg)) {
|
|
release_vg(vg);
|
|
return NULL;
|
|
}
|
|
vg->open_mode = 'w';
|
|
return (vg_t) vg;
|
|
}
|
|
|
|
int lvm_vg_extend(vg_t vg, const char *device)
|
|
{
|
|
struct pvcreate_params pp;
|
|
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (!lock_vol(vg->cmd, VG_ORPHANS, LCK_VG_WRITE)) {
|
|
log_error("Can't get lock for orphan PVs");
|
|
return -1;
|
|
}
|
|
|
|
pvcreate_params_set_defaults(&pp);
|
|
if (!vg_extend(vg, 1, &device, &pp)) {
|
|
unlock_vg(vg->cmd, VG_ORPHANS);
|
|
return -1;
|
|
}
|
|
/*
|
|
* FIXME: Either commit to disk, or keep holding VG_ORPHANS and
|
|
* release in lvm_vg_close().
|
|
*/
|
|
unlock_vg(vg->cmd, VG_ORPHANS);
|
|
return 0;
|
|
}
|
|
|
|
int lvm_vg_reduce(vg_t vg, const char *device)
|
|
{
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (!vg_reduce(vg, device))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
int lvm_vg_set_extent_size(vg_t vg, uint32_t new_size)
|
|
{
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (!vg_set_extent_size(vg, new_size / SECTOR_SIZE))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
int lvm_vg_write(vg_t vg)
|
|
{
|
|
struct pv_list *pvl;
|
|
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (dm_list_empty(&vg->pvs)) {
|
|
if (!vg_remove(vg))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
if (! dm_list_empty(&vg->removed_pvs)) {
|
|
if (!lock_vol(vg->cmd, VG_ORPHANS, LCK_VG_WRITE)) {
|
|
log_error("Can't get lock for orphan PVs");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!archive(vg))
|
|
return -1;
|
|
|
|
/* Store VG on disk(s) */
|
|
if (!vg_write(vg) || !vg_commit(vg))
|
|
return -1;
|
|
|
|
if (! dm_list_empty(&vg->removed_pvs)) {
|
|
dm_list_iterate_items(pvl, &vg->removed_pvs) {
|
|
pv_write_orphan(vg->cmd, pvl->pv);
|
|
pv_set_fid(pvl->pv, NULL);
|
|
/* FIXME: do pvremove / label_remove()? */
|
|
}
|
|
dm_list_init(&vg->removed_pvs);
|
|
unlock_vg(vg->cmd, VG_ORPHANS);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int lvm_vg_close(vg_t vg)
|
|
{
|
|
if (vg_read_error(vg) == FAILED_LOCKING)
|
|
release_vg(vg);
|
|
else
|
|
unlock_and_release_vg(vg->cmd, vg, vg->name);
|
|
return 0;
|
|
}
|
|
|
|
int lvm_vg_remove(vg_t vg)
|
|
{
|
|
if (vg_read_error(vg))
|
|
return -1;
|
|
if (!vg_check_write_mode(vg))
|
|
return -1;
|
|
|
|
if (!vg_remove_check(vg))
|
|
return -1;
|
|
|
|
vg_remove_pvs(vg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
vg_t lvm_vg_open(lvm_t libh, const char *vgname, const char *mode,
|
|
uint32_t flags)
|
|
{
|
|
uint32_t internal_flags = 0;
|
|
struct volume_group *vg;
|
|
|
|
if (!strncmp(mode, "w", 1))
|
|
internal_flags |= READ_FOR_UPDATE;
|
|
else if (strncmp(mode, "r", 1)) {
|
|
log_errno(EINVAL, "Invalid VG open mode");
|
|
return NULL;
|
|
}
|
|
|
|
vg = vg_read((struct cmd_context *)libh, vgname, NULL, internal_flags);
|
|
if (vg_read_error(vg)) {
|
|
/* FIXME: use log_errno either here in inside vg_read */
|
|
release_vg(vg);
|
|
return NULL;
|
|
}
|
|
/* FIXME: combine this with locking ? */
|
|
vg->open_mode = mode[0];
|
|
|
|
return (vg_t) vg;
|
|
}
|
|
|
|
struct dm_list *lvm_vg_list_pvs(vg_t vg)
|
|
{
|
|
struct dm_list *list;
|
|
pv_list_t *pvs;
|
|
struct pv_list *pvl;
|
|
|
|
if (dm_list_empty(&vg->pvs))
|
|
return NULL;
|
|
|
|
if (!(list = dm_pool_zalloc(vg->vgmem, sizeof(*list)))) {
|
|
log_errno(ENOMEM, "Memory allocation fail for dm_list.");
|
|
return NULL;
|
|
}
|
|
dm_list_init(list);
|
|
|
|
dm_list_iterate_items(pvl, &vg->pvs) {
|
|
if (!(pvs = dm_pool_zalloc(vg->vgmem, sizeof(*pvs)))) {
|
|
log_errno(ENOMEM,
|
|
"Memory allocation fail for lvm_pv_list.");
|
|
return NULL;
|
|
}
|
|
pvs->pv = pvl->pv;
|
|
dm_list_add(list, &pvs->list);
|
|
}
|
|
return list;
|
|
}
|
|
|
|
struct dm_list *lvm_vg_list_lvs(vg_t vg)
|
|
{
|
|
struct dm_list *list;
|
|
lv_list_t *lvs;
|
|
struct lv_list *lvl;
|
|
|
|
if (dm_list_empty(&vg->lvs))
|
|
return NULL;
|
|
|
|
if (!(list = dm_pool_zalloc(vg->vgmem, sizeof(*list)))) {
|
|
log_errno(ENOMEM, "Memory allocation fail for dm_list.");
|
|
return NULL;
|
|
}
|
|
dm_list_init(list);
|
|
|
|
dm_list_iterate_items(lvl, &vg->lvs) {
|
|
if (!(lvs = dm_pool_zalloc(vg->vgmem, sizeof(*lvs)))) {
|
|
log_errno(ENOMEM,
|
|
"Memory allocation fail for lvm_lv_list.");
|
|
return NULL;
|
|
}
|
|
lvs->lv = lvl->lv;
|
|
dm_list_add(list, &lvs->list);
|
|
}
|
|
return list;
|
|
}
|
|
|
|
struct dm_list *lvm_vg_get_tags(const vg_t vg)
|
|
{
|
|
return tag_list_copy(vg->vgmem, &vg->tags);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_seqno(const vg_t vg)
|
|
{
|
|
return vg_seqno(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_is_clustered(const vg_t vg)
|
|
{
|
|
return vg_is_clustered(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_is_exported(const vg_t vg)
|
|
{
|
|
return vg_is_exported(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_is_partial(const vg_t vg)
|
|
{
|
|
return (vg_missing_pv_count(vg) != 0);
|
|
}
|
|
|
|
/* FIXME: invalid handle? return INTMAX? */
|
|
uint64_t lvm_vg_get_size(const vg_t vg)
|
|
{
|
|
return SECTOR_SIZE * vg_size(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_free_size(const vg_t vg)
|
|
{
|
|
return SECTOR_SIZE * vg_free(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_extent_size(const vg_t vg)
|
|
{
|
|
return SECTOR_SIZE * vg_extent_size(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_extent_count(const vg_t vg)
|
|
{
|
|
return vg_extent_count(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_free_extent_count(const vg_t vg)
|
|
{
|
|
return vg_free_count(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_pv_count(const vg_t vg)
|
|
{
|
|
return vg_pv_count(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_max_pv(const vg_t vg)
|
|
{
|
|
return vg_max_pv(vg);
|
|
}
|
|
|
|
uint64_t lvm_vg_get_max_lv(const vg_t vg)
|
|
{
|
|
return vg_max_lv(vg);
|
|
}
|
|
|
|
const char *lvm_vg_get_uuid(const vg_t vg)
|
|
{
|
|
return vg_uuid_dup(vg);
|
|
}
|
|
|
|
const char *lvm_vg_get_name(const vg_t vg)
|
|
{
|
|
return dm_pool_strndup(vg->vgmem, (const char *)vg->name, NAME_LEN+1);
|
|
}
|
|
|
|
|
|
struct lvm_property_value lvm_vg_get_property(const vg_t vg, const char *name)
|
|
{
|
|
return get_property(NULL, vg, NULL, NULL, NULL, name);
|
|
}
|
|
|
|
int lvm_vg_set_property(const vg_t vg, const char *name,
|
|
struct lvm_property_value *value)
|
|
{
|
|
return set_property(NULL, vg, NULL, name, value);
|
|
}
|
|
|
|
struct dm_list *lvm_list_vg_names(lvm_t libh)
|
|
{
|
|
return get_vgnames((struct cmd_context *)libh, 0);
|
|
}
|
|
|
|
struct dm_list *lvm_list_vg_uuids(lvm_t libh)
|
|
{
|
|
return get_vgids((struct cmd_context *)libh, 0);
|
|
}
|
|
|
|
/*
|
|
* FIXME: Elaborate on when to use, side-effects, .cache file, etc
|
|
*/
|
|
int lvm_scan(lvm_t libh)
|
|
{
|
|
if (!lvmcache_label_scan((struct cmd_context *)libh, 2))
|
|
return -1;
|
|
return 0;
|
|
}
|