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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2009 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "tools.h"
struct vgextend_params {
struct pvcreate_params pp;
};
static int _restore_pv(struct volume_group *vg, const char *pv_name)
{
struct pv_list *pvl = NULL;
pvl = find_pv_in_vg(vg, pv_name);
if (!pvl) {
log_warn("WARNING: PV %s not found in VG %s", pv_name, vg->name);
return 0;
}
if (!pvl->pv->dev) {
log_warn("WARNING: The PV %s is still missing.", pv_name);
return 0;
}
if (pvl->pv->status & MISSING_PV)
goto clear_flag;
/*
* when the PV has no used PE's vg_read clears the MISSING_PV flag
* and sets this so we know.
*/
if (pvl->pv->unused_missing_cleared)
goto clear_flag;
log_warn("WARNING: PV %s was not missing in VG %s", pv_name, vg->name);
return 0;
clear_flag:
pvl->pv->status &= ~MISSING_PV;
return 1;
}
static int _vgextend_restoremissing(struct cmd_context *cmd __attribute__((unused)),
const char *vg_name, struct volume_group *vg,
struct processing_handle *handle)
{
struct vgextend_params *vp = (struct vgextend_params *) handle->custom_handle;
struct pvcreate_params *pp = &vp->pp;
int fixed = 0;
unsigned i;
for (i = 0; i < pp->pv_count; i++)
if (_restore_pv(vg, pp->pv_names[i]))
fixed++;
if (!fixed) {
log_error("No PV has been restored.");
return ECMD_FAILED;
}
if (!vg_write(vg) || !vg_commit(vg))
return_ECMD_FAILED;
log_print_unless_silent("Volume group \"%s\" successfully extended", vg_name);
return ECMD_PROCESSED;
}
static int _vgextend_single(struct cmd_context *cmd, const char *vg_name,
struct volume_group *vg, struct processing_handle *handle)
{
struct vgextend_params *vp = (struct vgextend_params *) handle->custom_handle;
struct pvcreate_params *pp = &vp->pp;
uint32_t mda_copies;
uint32_t mda_used;
int ret = ECMD_FAILED;
if (arg_is_set(cmd, metadataignore_ARG) &&
(pp->force == PROMPT) && !pp->yes &&
(vg_mda_copies(vg) != VGMETADATACOPIES_UNMANAGED) &&
(yes_no_prompt("Override preferred number of copies of VG %s metadata? [y/n]: ", vg_name) == 'n')) {
log_error("Volume group %s not changed", vg_name);
return ECMD_FAILED;
}
if (!vg_extend_each_pv(vg, pp))
goto_out;
if (arg_is_set(cmd, metadataignore_ARG)) {
mda_copies = vg_mda_copies(vg);
mda_used = vg_mda_used_count(vg);
if ((mda_copies != VGMETADATACOPIES_UNMANAGED) &&
(mda_copies != mda_used)) {
log_warn("WARNING: Changing preferred number of copies of VG %s metadata from %" PRIu32 " to %" PRIu32,
vg_name, mda_copies, mda_used);
vg_set_mda_copies(vg, mda_used);
}
}
log_verbose("Volume group \"%s\" will be extended by %d new physical volumes", vg_name, pp->pv_count);
if (!vg_write(vg) || !vg_commit(vg))
goto_out;
log_print_unless_silent("Volume group \"%s\" successfully extended", vg_name);
ret = ECMD_PROCESSED;
out:
return ret;
}
int vgextend(struct cmd_context *cmd, int argc, char **argv)
{
struct processing_handle *handle;
struct vgextend_params vp;
struct pvcreate_params *pp = &vp.pp;
unsigned restoremissing = arg_is_set(cmd, restoremissing_ARG);
const char *vg_name;
int ret;
if (!argc) {
log_error("Please enter volume group name and "
"physical volume(s)");
return EINVALID_CMD_LINE;
}
vg_name = skip_dev_dir(cmd, argv[0], NULL);
argc--;
argv++;
pvcreate_params_set_defaults(pp);
if (!pvcreate_params_from_args(cmd, pp))
return EINVALID_CMD_LINE;
pp->pv_count = argc;
pp->pv_names = argv;
/* Don't create a new PV on top of an existing PV like pvcreate does. */
pp->preserve_existing = 1;
/* pvcreate within vgextend cannot be forced. */
pp->force = PROMPT;
if (!lock_global(cmd, "ex"))
return_ECMD_FAILED;
clear_hint_file(cmd);
cmd->edit_devices_file = 1;
if (!lvmcache_label_scan(cmd))
return_ECMD_FAILED;
if (!(handle = init_processing_handle(cmd, NULL))) {
log_error("Failed to initialize processing handle.");
return ECMD_FAILED;
}
if (!restoremissing) {
if (!pvcreate_each_device(cmd, handle, pp)) {
destroy_processing_handle(cmd, handle);
return_ECMD_FAILED;
}
}
unlock_devices_file(cmd);
/*
* It is always ok to add new PVs to a VG - even if there are
* missing PVs. No LVs are affected by this operation, but
* repair processes - particularly for RAID segtypes - can
* be facilitated.
*/
cmd->handles_missing_pvs = 1;
handle->custom_handle = &vp;
ret = process_each_vg(cmd, 0, NULL, vg_name, NULL,
READ_FOR_UPDATE | PROCESS_SKIP_SCAN, 0, handle,
restoremissing ? &_vgextend_restoremissing : &_vgextend_single);
destroy_processing_handle(cmd, handle);
return ret;
}
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