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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "tools.h"
#include "lib/format_text/format-text.h"
/*
* TODO: we cannot yet repair corruption in label_header, pv_header/locations,
* or corruption of some mda_header fields.
*/
static int _update_metadata_single(struct cmd_context *cmd __attribute__((unused)),
const char *vg_name,
struct volume_group *vg,
struct processing_handle *handle __attribute__((unused)))
{
/*
* Simply calling vg_write can correct or clean up various things:
* . some mda's have old versions of metdadata
* . wipe outdated PVs
* . fix pv_header used flag and version
* . strip historical lvs
* . clear missing pv flag on unused PV
*/
if (!vg_write(vg)) {
log_error("Failed to write VG.");
return 0;
}
/*
* Prevent vg_commit from freeing the metadata
* buffer that vg_write wrote to disk so that
* vg_write_commit_bad_mdas() can use the same
* metadata buffer to write to the bad mdas.
*/
preserve_text_fidtc(vg);
if (!vg_commit(vg)) {
log_error("Failed to commit VG.");
return 0;
}
/*
* vg_write does not write to "bad" mdas (where "bad" is corrupt, can't
* be processed when reading). bad mdas are not kept in
* fid->metadata_areas_in_use so vg_read and vg_write ignore them, but
* they are saved in lvmcache. this gets them from lvmcache and tries
* to write this metadata to them.
*/
vg_write_commit_bad_mdas(cmd, vg);
/*
* Now free the metadata buffer that was
* preserved above.
*/
free_text_fidtc(vg);
return 1;
}
static int _update_metadata(struct cmd_context *cmd, int argc, char **argv)
{
cmd->handles_missing_pvs = 1;
cmd->wipe_outdated_pvs = 1;
cmd->handles_unknown_segments = 1;
return process_each_vg(cmd, argc, argv, NULL, NULL, READ_FOR_UPDATE, 0, NULL,
&_update_metadata_single);
}
static int vgck_single(struct cmd_context *cmd __attribute__((unused)),
const char *vg_name,
struct volume_group *vg,
struct processing_handle *handle __attribute__((unused)))
{
if (!vg_validate(vg))
return_ECMD_FAILED;
if (vg_missing_pv_count(vg)) {
log_error("The volume group is missing %d physical volumes.",
vg_missing_pv_count(vg));
return ECMD_FAILED;
}
return ECMD_PROCESSED;
}
int vgck(struct cmd_context *cmd, int argc, char **argv)
{
if (arg_is_set(cmd, updatemetadata_ARG))
return _update_metadata(cmd, argc, argv);
return process_each_vg(cmd, argc, argv, NULL, NULL, 0, 0, NULL,
&vgck_single);
}
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