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54b41dcd53
When an orphan PV is changed/resized, the lvmlockd global lock is converted from sh to ex. If the command is changing two orphan PVs, the conversion to ex should be done only once.
232 lines
6.4 KiB
C
232 lines
6.4 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2015 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "tools.h"
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struct pvchange_params {
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unsigned done;
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unsigned total;
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};
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static int _pvchange_single(struct cmd_context *cmd, struct volume_group *vg,
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struct physical_volume *pv, struct processing_handle *handle)
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{
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struct pvchange_params *params = (struct pvchange_params *) handle->custom_handle;
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const char *pv_name = pv_dev_name(pv);
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char uuid[64] __attribute__((aligned(8)));
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unsigned done = 0;
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int allocatable = arg_int_value(cmd, allocatable_ARG, 0);
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int mda_ignore = arg_int_value(cmd, metadataignore_ARG, 0);
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int tagargs = arg_count(cmd, addtag_ARG) + arg_count(cmd, deltag_ARG);
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params->total++;
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/* If in a VG, must change using volume group. */
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if (!is_orphan(pv)) {
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if (tagargs && !(vg->fid->fmt->features & FMT_TAGS)) {
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log_error("Volume group containing %s does not "
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"support tags", pv_name);
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goto bad;
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}
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if (arg_count(cmd, uuid_ARG) && lvs_in_vg_activated(vg)) {
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log_error("Volume group containing %s has active "
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"logical volumes", pv_name);
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goto bad;
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}
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if (!archive(vg))
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goto_bad;
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} else if (tagargs) {
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log_error("Can't change tag on Physical Volume %s not "
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"in volume group", pv_name);
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goto bad;
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}
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if (arg_count(cmd, allocatable_ARG)) {
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if (is_orphan(pv) &&
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!(pv->fmt->features & FMT_ORPHAN_ALLOCATABLE)) {
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log_error("Allocatability not supported by orphan "
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"%s format PV %s", pv->fmt->name, pv_name);
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goto bad;
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}
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/* change allocatability for a PV */
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if (allocatable && (pv_status(pv) & ALLOCATABLE_PV)) {
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log_warn("Physical volume \"%s\" is already "
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"allocatable.", pv_name);
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} else if (!allocatable && !(pv_status(pv) & ALLOCATABLE_PV)) {
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log_warn("Physical volume \"%s\" is already "
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"unallocatable.", pv_name);
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} else if (allocatable) {
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log_verbose("Setting physical volume \"%s\" "
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"allocatable", pv_name);
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pv->status |= ALLOCATABLE_PV;
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done = 1;
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} else {
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log_verbose("Setting physical volume \"%s\" NOT "
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"allocatable", pv_name);
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pv->status &= ~ALLOCATABLE_PV;
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done = 1;
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}
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}
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/*
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* Needed to change a property on an orphan PV.
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* i.e. the global lock is only needed for orphans.
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* Convert sh to ex.
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*/
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if (is_orphan(pv)) {
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if (!lockd_gl(cmd, "ex", 0))
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return_ECMD_FAILED;
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cmd->lockd_gl_disable = 1;
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}
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if (tagargs) {
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/* tag or deltag */
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if (arg_count(cmd, addtag_ARG) && !change_tag(cmd, NULL, NULL, pv, addtag_ARG))
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goto_bad;
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if (arg_count(cmd, deltag_ARG) && !change_tag(cmd, NULL, NULL, pv, deltag_ARG))
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goto_bad;
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done = 1;
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}
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if (arg_count(cmd, metadataignore_ARG)) {
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if ((vg_mda_copies(vg) != VGMETADATACOPIES_UNMANAGED) &&
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(arg_count(cmd, force_ARG) == PROMPT) &&
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yes_no_prompt("Override preferred number of copies "
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"of VG %s metadata? [y/n]: ",
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pv_vg_name(pv)) == 'n')
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goto_bad;
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if (!pv_change_metadataignore(pv, mda_ignore))
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goto_bad;
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done = 1;
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}
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if (arg_count(cmd, uuid_ARG)) {
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/* --uuid: Change PV ID randomly */
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memcpy(&pv->old_id, &pv->id, sizeof(pv->id));
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if (!id_create(&pv->id)) {
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log_error("Failed to generate new random UUID for %s.",
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pv_name);
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goto bad;
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}
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if (!id_write_format(&pv->id, uuid, sizeof(uuid)))
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goto_bad;
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log_verbose("Changing uuid of %s to %s.", pv_name, uuid);
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if (!is_orphan(pv) && (!pv_write(cmd, pv, 1))) {
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log_error("pv_write with new uuid failed "
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"for %s.", pv_name);
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goto bad;
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}
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done = 1;
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}
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if (!done) {
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log_print_unless_silent("Physical volume %s not changed", pv_name);
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return ECMD_PROCESSED;
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}
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log_verbose("Updating physical volume \"%s\"", pv_name);
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if (!is_orphan(pv)) {
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if (!vg_write(vg) || !vg_commit(vg)) {
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log_error("Failed to store physical volume \"%s\" in "
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"volume group \"%s\"", pv_name, vg->name);
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goto bad;
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}
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backup(vg);
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} else if (!(pv_write(cmd, pv, 0))) {
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log_error("Failed to store physical volume \"%s\"",
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pv_name);
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goto bad;
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}
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log_print_unless_silent("Physical volume \"%s\" changed", pv_name);
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params->done++;
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return ECMD_PROCESSED;
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bad:
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log_error("Physical volume %s not changed", pv_name);
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return ECMD_FAILED;
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}
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int pvchange(struct cmd_context *cmd, int argc, char **argv)
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{
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struct pvchange_params params = { 0 };
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struct processing_handle *handle = NULL;
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int ret;
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if (!(arg_count(cmd, allocatable_ARG) + arg_is_set(cmd, addtag_ARG) +
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arg_is_set(cmd, deltag_ARG) + arg_count(cmd, uuid_ARG) +
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arg_count(cmd, metadataignore_ARG))) {
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log_error("Please give one or more of -x, -uuid, "
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"--addtag, --deltag or --metadataignore");
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ret = EINVALID_CMD_LINE;
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goto out;
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}
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if (!(handle = init_processing_handle(cmd))) {
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log_error("Failed to initialize processing handle.");
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ret = ECMD_FAILED;
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goto out;
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}
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handle->custom_handle = ¶ms;
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if (!(arg_count(cmd, all_ARG)) && !argc && !handle->internal_report_for_select) {
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log_error("Please give a physical volume path or use --select for selection.");
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ret = EINVALID_CMD_LINE;
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goto out;
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}
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if (arg_count(cmd, all_ARG) && argc) {
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log_error("Option --all and PhysicalVolumePath are exclusive.");
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ret = EINVALID_CMD_LINE;
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goto out;
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}
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if (!argc) {
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/*
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* Take the global lock here so the lvmcache remains
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* consistent across orphan/non-orphan vg locks. If we don't
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* take the lock here, pvs with 0 mdas in a non-orphan VG will
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* be processed twice.
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*/
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if (!lock_vol(cmd, VG_GLOBAL, LCK_VG_WRITE, NULL)) {
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log_error("Unable to obtain global lock.");
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ret = ECMD_FAILED;
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goto out;
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}
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}
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ret = process_each_pv(cmd, argc, argv, NULL, READ_FOR_UPDATE, handle, _pvchange_single);
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if (!argc)
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unlock_vg(cmd, VG_GLOBAL);
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log_print_unless_silent("%d physical volume%s changed / %d physical volume%s not changed",
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params.done, params.done == 1 ? "" : "s",
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params.total - params.done, (params.total - params.done) == 1 ? "" : "s");
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out:
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destroy_processing_handle(cmd, handle);
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return ret;
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}
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