mirror of
git://sourceware.org/git/lvm2.git
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013c080756
Change run time access to the command_name struct cmd->cname instead of indirectly through cmd->command->cname. This removes the two run time fields from struct command.
1275 lines
35 KiB
C
1275 lines
35 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2013 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "tools.h"
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struct vgchange_params {
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int lock_start_count;
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unsigned int lock_start_sanlock : 1;
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};
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/*
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* Increments *count by the number of _new_ monitored devices.
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*/
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static int _monitor_lvs_in_vg(struct cmd_context *cmd,
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struct volume_group *vg, int reg, int *count)
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{
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struct lv_list *lvl;
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struct logical_volume *lv;
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int r = 1;
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dm_list_iterate_items(lvl, &vg->lvs) {
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lv = lvl->lv;
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if (!lv_info(cmd, lv, lv_is_thin_pool(lv) ? 1 : 0,
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NULL, 0, 0))
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continue;
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/*
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* FIXME: Need to consider all cases... PVMOVE, etc
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*/
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if (lv_is_pvmove(lv))
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continue;
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if (!monitor_dev_for_events(cmd, lv, 0, reg)) {
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r = 0;
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continue;
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}
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(*count)++;
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}
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return r;
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}
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static int _poll_lvs_in_vg(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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struct lv_list *lvl;
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struct logical_volume *lv;
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struct lvinfo info;
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int lv_active;
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int count = 0;
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dm_list_iterate_items(lvl, &vg->lvs) {
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lv = lvl->lv;
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if (!lv_info(cmd, lv, 0, &info, 0, 0))
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lv_active = 0;
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else
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lv_active = info.exists;
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if (lv_active &&
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(lv_is_pvmove(lv) || lv_is_converting(lv) || lv_is_merging(lv))) {
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lv_spawn_background_polling(cmd, lv);
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count++;
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}
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}
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/*
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* returns the number of polled devices
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* - there is no way to know if lv is already being polled
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*/
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return count;
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}
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static int _activate_lvs_in_vg(struct cmd_context *cmd, struct volume_group *vg,
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activation_change_t activate)
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{
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struct lv_list *lvl;
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struct logical_volume *lv;
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int count = 0, expected_count = 0, r = 1;
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sigint_allow();
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dm_list_iterate_items(lvl, &vg->lvs) {
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if (sigint_caught())
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return_0;
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lv = lvl->lv;
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if (!lv_is_visible(lv))
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continue;
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/* If LV is sparse, activate origin instead */
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if (lv_is_cow(lv) && lv_is_virtual_origin(origin_from_cow(lv)))
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lv = origin_from_cow(lv);
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/* Only request activation of snapshot origin devices */
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if (lv_is_snapshot(lv) || lv_is_cow(lv))
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continue;
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/* Only request activation of mirror LV */
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if (lv_is_mirror_image(lv) || lv_is_mirror_log(lv))
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continue;
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/* Only request activation of the first replicator-dev LV */
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/* Avoids retry with all heads in case of failure */
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if (lv_is_replicator_dev(lv) && (lv != first_replicator_dev(lv)))
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continue;
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if (lv_activation_skip(lv, activate, arg_is_set(cmd, ignoreactivationskip_ARG)))
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continue;
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if ((activate == CHANGE_AAY) &&
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!lv_passes_auto_activation_filter(cmd, lv))
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continue;
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expected_count++;
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if (!lv_change_activate(cmd, lv, activate)) {
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if (!lv_is_active_exclusive_remotely(lv))
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stack;
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else {
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/*
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* If the LV is active exclusive remotely,
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* then ignore it here
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*/
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log_verbose("%s/%s is exclusively active on"
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" a remote node", vg->name, lv->name);
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expected_count--; /* not accounted */
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}
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continue;
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}
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count++;
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}
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sigint_restore();
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/* Wait until devices are available */
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if (!sync_local_dev_names(vg->cmd)) {
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log_error("Failed to sync local devices for VG %s.", vg->name);
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r = 0;
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}
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if (expected_count)
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log_verbose("%s %d logical volumes in volume group %s",
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is_change_activating(activate) ?
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"Activated" : "Deactivated", count, vg->name);
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return (expected_count != count) ? 0 : r;
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}
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static int _vgchange_monitoring(struct cmd_context *cmd, struct volume_group *vg)
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{
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int r = 1;
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int monitored = 0;
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if (lvs_in_vg_activated(vg) &&
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dmeventd_monitor_mode() != DMEVENTD_MONITOR_IGNORE) {
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if (!_monitor_lvs_in_vg(cmd, vg, dmeventd_monitor_mode(), &monitored))
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r = 0;
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log_print_unless_silent("%d logical volume(s) in volume group "
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"\"%s\" %smonitored",
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monitored, vg->name, (dmeventd_monitor_mode()) ? "" : "un");
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}
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return r;
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}
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int vgchange_background_polling(struct cmd_context *cmd, struct volume_group *vg)
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{
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int polled;
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if (lvs_in_vg_activated(vg) && background_polling()) {
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polled = _poll_lvs_in_vg(cmd, vg);
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if (polled)
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log_print_unless_silent("Background polling started for %d logical volume(s) "
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"in volume group \"%s\"",
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polled, vg->name);
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}
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return 1;
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}
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int vgchange_activate(struct cmd_context *cmd, struct volume_group *vg,
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activation_change_t activate)
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{
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int lv_open, active, monitored = 0, r = 1;
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const struct lv_list *lvl;
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int do_activate = is_change_activating(activate);
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/*
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* We can get here in the odd case where an LV is already active in
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* a foreign VG, which allows the VG to be accessed by vgchange -a
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* so the LV can be deactivated.
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*/
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if (vg->system_id && vg->system_id[0] &&
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cmd->system_id && cmd->system_id[0] &&
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strcmp(vg->system_id, cmd->system_id) &&
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do_activate) {
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log_error("Cannot activate LVs in a foreign VG.");
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return ECMD_FAILED;
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}
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/*
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* Safe, since we never write out new metadata here. Required for
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* partial activation to work.
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*/
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cmd->handles_missing_pvs = 1;
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/* FIXME: Force argument to deactivate them? */
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if (!do_activate && (lv_open = lvs_in_vg_opened(vg))) {
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dm_list_iterate_items(lvl, &vg->lvs)
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if (lv_is_visible(lvl->lv) &&
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!lv_check_not_in_use(lvl->lv, 1)) {
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log_error("Can't deactivate volume group \"%s\" with %d open "
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"logical volume(s)", vg->name, lv_open);
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return 0;
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}
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}
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/* FIXME Move into library where clvmd can use it */
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if (do_activate)
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check_current_backup(vg);
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if (do_activate && (active = lvs_in_vg_activated(vg))) {
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log_verbose("%d logical volume(s) in volume group \"%s\" "
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"already active", active, vg->name);
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if (dmeventd_monitor_mode() != DMEVENTD_MONITOR_IGNORE) {
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if (!_monitor_lvs_in_vg(cmd, vg, dmeventd_monitor_mode(), &monitored))
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r = 0;
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log_verbose("%d existing logical volume(s) in volume "
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"group \"%s\" %smonitored",
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monitored, vg->name,
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dmeventd_monitor_mode() ? "" : "un");
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}
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}
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if (!_activate_lvs_in_vg(cmd, vg, activate)) {
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stack;
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r = 0;
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}
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/* Print message only if there was not found a missing VG */
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if (!vg->cmd_missing_vgs)
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log_print_unless_silent("%d logical volume(s) in volume group \"%s\" now active",
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lvs_in_vg_activated(vg), vg->name);
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return r;
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}
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static int _vgchange_refresh(struct cmd_context *cmd, struct volume_group *vg)
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{
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log_verbose("Refreshing volume group \"%s\"", vg->name);
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if (!vg_refresh_visible(cmd, vg))
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return_0;
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return 1;
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}
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static int _vgchange_alloc(struct cmd_context *cmd, struct volume_group *vg)
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{
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alloc_policy_t alloc;
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alloc = (alloc_policy_t) arg_uint_value(cmd, alloc_ARG, ALLOC_NORMAL);
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/* FIXME: make consistent with vg_set_alloc_policy() */
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if (alloc == vg->alloc) {
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log_error("Volume group allocation policy is already %s",
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get_alloc_string(vg->alloc));
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return 0;
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}
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if (!vg_set_alloc_policy(vg, alloc))
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return_0;
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return 1;
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}
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static int _vgchange_resizeable(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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int resizeable = arg_int_value(cmd, resizeable_ARG, 0);
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if (resizeable && vg_is_resizeable(vg)) {
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log_error("Volume group \"%s\" is already resizeable",
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vg->name);
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return 0;
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}
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if (!resizeable && !vg_is_resizeable(vg)) {
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log_error("Volume group \"%s\" is already not resizeable",
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vg->name);
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return 0;
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}
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if (resizeable)
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vg->status |= RESIZEABLE_VG;
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else
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vg->status &= ~RESIZEABLE_VG;
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return 1;
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}
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static int _vgchange_clustered(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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int clustered = arg_int_value(cmd, clustered_ARG, 0);
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const char *lock_type = arg_str_value(cmd, locktype_ARG, NULL);
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struct lv_list *lvl;
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struct lv_segment *mirror_seg;
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if (find_config_tree_bool(cmd, global_use_lvmlockd_CFG, NULL)) {
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log_error("lvmlockd requires using the vgchange --lock-type option.");
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return 0;
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}
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if (lock_type && !strcmp(lock_type, "clvm"))
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clustered = 1;
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if (clustered && vg_is_clustered(vg)) {
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if (vg->system_id && *vg->system_id)
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log_warn("WARNING: Clearing invalid system ID %s from volume group %s.",
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vg->system_id, vg->name);
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else {
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log_error("Volume group \"%s\" is already clustered", vg->name);
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return 0;
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}
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}
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if (!clustered && !vg_is_clustered(vg)) {
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if ((!vg->system_id || !*vg->system_id) && cmd->system_id && *cmd->system_id)
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log_warn("Setting missing system ID on Volume Group %s to %s.",
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vg->name, cmd->system_id);
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else {
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log_error("Volume group \"%s\" is already not clustered",
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vg->name);
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return 0;
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}
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}
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if (clustered && !arg_is_set(cmd, yes_ARG)) {
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if (!clvmd_is_running()) {
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if (yes_no_prompt("LVM cluster daemon (clvmd) is not running. "
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"Make volume group \"%s\" clustered "
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"anyway? [y/n]: ", vg->name) == 'n') {
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log_error("No volume groups changed.");
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return 0;
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}
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} else if (!locking_is_clustered() &&
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(yes_no_prompt("LVM locking type is not clustered. "
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"Make volume group \"%s\" clustered "
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"anyway? [y/n]: ", vg->name) == 'n')) {
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log_error("No volume groups changed.");
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return 0;
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}
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#ifdef CMIRROR_REGION_COUNT_LIMIT
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dm_list_iterate_items(lvl, &vg->lvs) {
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if (!lv_is_mirror(lvl->lv))
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continue;
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mirror_seg = first_seg(lvl->lv);
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if ((lvl->lv->size / mirror_seg->region_size) >
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CMIRROR_REGION_COUNT_LIMIT) {
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log_error("Unable to convert %s to clustered mode:"
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" Mirror region size of %s is too small.",
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vg->name, lvl->lv->name);
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return 0;
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}
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}
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#endif
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}
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if (!vg_set_system_id(vg, clustered ? NULL : cmd->system_id))
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return_0;
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if (!vg_set_clustered(vg, clustered))
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return_0;
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return 1;
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}
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static int _vgchange_logicalvolume(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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uint32_t max_lv = arg_uint_value(cmd, logicalvolume_ARG, 0);
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if (!vg_set_max_lv(vg, max_lv))
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return_0;
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return 1;
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}
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static int _vgchange_physicalvolumes(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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uint32_t max_pv = arg_uint_value(cmd, maxphysicalvolumes_ARG, 0);
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if (!vg_set_max_pv(vg, max_pv))
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return_0;
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return 1;
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}
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static int _vgchange_pesize(struct cmd_context *cmd, struct volume_group *vg)
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{
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uint32_t extent_size;
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if (arg_uint64_value(cmd, physicalextentsize_ARG, 0) > MAX_EXTENT_SIZE) {
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log_warn("Physical extent size cannot be larger than %s.",
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display_size(cmd, (uint64_t) MAX_EXTENT_SIZE));
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return 1;
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}
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extent_size = arg_uint_value(cmd, physicalextentsize_ARG, 0);
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/* FIXME: remove check - redundant with vg_change_pesize */
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if (extent_size == vg->extent_size) {
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log_warn("Physical extent size of VG %s is already %s.",
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vg->name, display_size(cmd, (uint64_t) extent_size));
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return 1;
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}
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if (!vg_set_extent_size(vg, extent_size))
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return_0;
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if (!vg_check_pv_dev_block_sizes(vg)) {
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log_error("Failed to change physical extent size for VG %s.",
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vg->name);
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return 0;
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}
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return 1;
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}
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static int _vgchange_addtag(struct cmd_context *cmd, struct volume_group *vg)
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{
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return change_tag(cmd, vg, NULL, NULL, addtag_ARG);
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}
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static int _vgchange_deltag(struct cmd_context *cmd, struct volume_group *vg)
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{
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return change_tag(cmd, vg, NULL, NULL, deltag_ARG);
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}
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static int _vgchange_uuid(struct cmd_context *cmd __attribute__((unused)),
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struct volume_group *vg)
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{
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struct lv_list *lvl;
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if (lvs_in_vg_activated(vg)) {
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log_error("Volume group has active logical volumes");
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return 0;
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}
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if (!id_create(&vg->id)) {
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log_error("Failed to generate new random UUID for VG %s.",
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vg->name);
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return 0;
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}
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dm_list_iterate_items(lvl, &vg->lvs) {
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memcpy(&lvl->lv->lvid, &vg->id, sizeof(vg->id));
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}
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return 1;
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}
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static int _vgchange_metadata_copies(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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uint32_t mda_copies = arg_uint_value(cmd, vgmetadatacopies_ARG, DEFAULT_VGMETADATACOPIES);
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log_warn("vgchange_metadata_copies new %u vg_mda_copies %u D %u",
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mda_copies, vg_mda_copies(vg), DEFAULT_VGMETADATACOPIES);
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if (mda_copies == vg_mda_copies(vg)) {
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if (vg_mda_copies(vg) == VGMETADATACOPIES_UNMANAGED)
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log_warn("Number of metadata copies for VG %s is already unmanaged.",
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vg->name);
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else
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log_warn("Number of metadata copies for VG %s is already %u.",
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vg->name, mda_copies);
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return 1;
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}
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if (!vg_set_mda_copies(vg, mda_copies))
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return_0;
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return 1;
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}
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static int _vgchange_profile(struct cmd_context *cmd,
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struct volume_group *vg)
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{
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const char *old_profile_name, *new_profile_name;
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struct profile *new_profile;
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old_profile_name = vg->profile ? vg->profile->name : "(no profile)";
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if (arg_is_set(cmd, detachprofile_ARG)) {
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new_profile_name = "(no profile)";
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vg->profile = NULL;
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} else {
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if (arg_is_set(cmd, metadataprofile_ARG))
|
|
new_profile_name = arg_str_value(cmd, metadataprofile_ARG, NULL);
|
|
else
|
|
new_profile_name = arg_str_value(cmd, profile_ARG, NULL);
|
|
if (!(new_profile = add_profile(cmd, new_profile_name, CONFIG_PROFILE_METADATA)))
|
|
return_0;
|
|
vg->profile = new_profile;
|
|
}
|
|
|
|
log_verbose("Changing configuration profile for VG %s: %s -> %s.",
|
|
vg->name, old_profile_name, new_profile_name);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _vgchange_locktype(struct cmd_context *cmd,
|
|
struct volume_group *vg)
|
|
{
|
|
const char *lock_type = arg_str_value(cmd, locktype_ARG, NULL);
|
|
struct lv_list *lvl;
|
|
struct logical_volume *lv;
|
|
int lv_lock_count = 0;
|
|
|
|
if (!lock_type) {
|
|
log_error(INTERNAL_ERROR "No locktype_ARG.");
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This is a special/forced exception to change the lock type to none.
|
|
* It's needed for recovery cases and skips the normal steps of undoing
|
|
* the current lock type. It's a way to forcibly get access to a VG
|
|
* when the normal locking mechanisms are not working.
|
|
*
|
|
* It ignores: the current lvm locking config, lvmlockd, the state of
|
|
* the vg on other hosts, etc. It is meant to just remove any locking
|
|
* related metadata from the VG (cluster/lock_type flags, lock_type,
|
|
* lock_args).
|
|
*
|
|
* This can be necessary when manually recovering from certain failures.
|
|
* e.g. when a pv is lost containing the lvmlock lv (holding sanlock
|
|
* leases), the vg lock_type needs to be changed to none, and then
|
|
* back to sanlock, which recreates the lvmlock lv and leases.
|
|
*/
|
|
if (!strcmp(lock_type, "none") && arg_is_set(cmd, force_ARG)) {
|
|
if (yes_no_prompt("Forcibly change VG %s lock type to none? [y/n]: ", vg->name) == 'n') {
|
|
log_error("VG lock type not changed.");
|
|
return 0;
|
|
}
|
|
|
|
vg->status &= ~CLUSTERED;
|
|
vg->lock_type = "none";
|
|
vg->lock_args = NULL;
|
|
|
|
dm_list_iterate_items(lvl, &vg->lvs)
|
|
lvl->lv->lock_args = NULL;
|
|
|
|
return 1;
|
|
}
|
|
|
|
if (!vg->lock_type) {
|
|
if (vg_is_clustered(vg))
|
|
vg->lock_type = "clvm";
|
|
else
|
|
vg->lock_type = "none";
|
|
}
|
|
|
|
if (!strcmp(vg->lock_type, lock_type)) {
|
|
log_warn("New lock type %s matches the current lock type %s.",
|
|
lock_type, vg->lock_type);
|
|
return 1;
|
|
}
|
|
|
|
if (is_lockd_type(vg->lock_type) && is_lockd_type(lock_type)) {
|
|
log_error("Cannot change lock type directly from \"%s\" to \"%s\".",
|
|
vg->lock_type, lock_type);
|
|
log_error("First change lock type to \"none\", then to \"%s\".",
|
|
lock_type);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* When lvm is currently using clvm, this function is just an alternative
|
|
* to vgchange -c{y,n}, and can:
|
|
* - change none to clvm
|
|
* - change clvm to none
|
|
* - it CANNOT change to or from a lockd type
|
|
*/
|
|
if (locking_is_clustered()) {
|
|
if (is_lockd_type(lock_type)) {
|
|
log_error("Changing to lock type %s requires lvmlockd.", lock_type);
|
|
return 0;
|
|
}
|
|
|
|
return _vgchange_clustered(cmd, vg);
|
|
}
|
|
|
|
/*
|
|
* When lvm is currently using lvmlockd, this function can:
|
|
* - change none to lockd type
|
|
* - change none to clvm (with warning about not being able to use it)
|
|
* - change lockd type to none
|
|
* - change lockd type to clvm (with warning about not being able to use it)
|
|
* - change clvm to none
|
|
* - change clvm to lockd type
|
|
*/
|
|
|
|
if (lvs_in_vg_activated(vg)) {
|
|
log_error("Changing VG %s lock type not allowed with active LVs",
|
|
vg->name);
|
|
return 0;
|
|
}
|
|
|
|
/* none to clvm */
|
|
if (!strcmp(vg->lock_type, "none") && !strcmp(lock_type, "clvm")) {
|
|
log_warn("New clvm lock type will not be usable with lvmlockd.");
|
|
vg->status |= CLUSTERED;
|
|
vg->lock_type = "clvm"; /* this is optional */
|
|
return 1;
|
|
}
|
|
|
|
/* clvm to none */
|
|
if (!strcmp(vg->lock_type, "clvm") && !strcmp(lock_type, "none")) {
|
|
vg->status &= ~CLUSTERED;
|
|
vg->lock_type = "none";
|
|
return 1;
|
|
}
|
|
|
|
/* clvm to ..., first undo clvm */
|
|
if (!strcmp(vg->lock_type, "clvm")) {
|
|
vg->status &= ~CLUSTERED;
|
|
}
|
|
|
|
/*
|
|
* lockd type to ..., first undo lockd type
|
|
*/
|
|
if (is_lockd_type(vg->lock_type)) {
|
|
if (!lockd_free_vg_before(cmd, vg, 1))
|
|
return 0;
|
|
|
|
lockd_free_vg_final(cmd, vg);
|
|
|
|
vg->status &= ~CLUSTERED;
|
|
vg->lock_type = "none";
|
|
vg->lock_args = NULL;
|
|
|
|
dm_list_iterate_items(lvl, &vg->lvs)
|
|
lvl->lv->lock_args = NULL;
|
|
}
|
|
|
|
/* ... to clvm */
|
|
if (!strcmp(lock_type, "clvm")) {
|
|
log_warn("New clvm lock type will not be usable with lvmlockd.");
|
|
vg->status |= CLUSTERED;
|
|
vg->lock_type = "clvm"; /* this is optional */
|
|
vg->system_id = NULL;
|
|
return 1;
|
|
}
|
|
|
|
/* ... to lockd type */
|
|
if (is_lockd_type(lock_type)) {
|
|
/*
|
|
* For lock_type dlm, lockd_init_vg() will do a single
|
|
* vg_write() that sets lock_type, sets lock_args, clears
|
|
* system_id, and sets all LV lock_args to dlm.
|
|
* For lock_type sanlock, lockd_init_vg() needs to know
|
|
* how many LV locks are needed so that it can make the
|
|
* sanlock lv large enough.
|
|
*/
|
|
dm_list_iterate_items(lvl, &vg->lvs) {
|
|
lv = lvl->lv;
|
|
|
|
if (lockd_lv_uses_lock(lv)) {
|
|
lv_lock_count++;
|
|
|
|
if (!strcmp(lock_type, "dlm"))
|
|
lv->lock_args = "dlm";
|
|
}
|
|
}
|
|
|
|
/*
|
|
* See below. We cannot set valid LV lock_args until stage 1
|
|
* of the change is done, so we need to skip the validation of
|
|
* the lock_args during stage 1.
|
|
*/
|
|
if (!strcmp(lock_type, "sanlock"))
|
|
vg->skip_validate_lock_args = 1;
|
|
|
|
vg->system_id = NULL;
|
|
|
|
if (!lockd_init_vg(cmd, vg, lock_type, lv_lock_count)) {
|
|
log_error("Failed to initialize lock args for lock type %s", lock_type);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* For lock_type sanlock, there must be multiple steps
|
|
* because the VG needs an active lvmlock LV before
|
|
* LV lock areas can be allocated, which must be done
|
|
* before LV lock_args are written. So, the LV lock_args
|
|
* remain unset during the first stage of the conversion.
|
|
*
|
|
* Stage 1:
|
|
* lockd_init_vg() creates and activates the lvmlock LV,
|
|
* then sets lock_type, sets lock_args, and clears system_id.
|
|
*
|
|
* Stage 2:
|
|
* We get here, and can now set LV lock_args. This uses
|
|
* the standard code path for allocating LV locks in
|
|
* vg_write() by setting LV lock_args to "pending",
|
|
* which tells vg_write() to call lockd_init_lv()
|
|
* and sets the lv->lock_args value before writing the VG.
|
|
*/
|
|
if (!strcmp(lock_type, "sanlock")) {
|
|
dm_list_iterate_items(lvl, &vg->lvs) {
|
|
lv = lvl->lv;
|
|
if (lockd_lv_uses_lock(lv))
|
|
lv->lock_args = "pending";
|
|
}
|
|
|
|
vg->skip_validate_lock_args = 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* ... to none */
|
|
if (!strcmp(lock_type, "none")) {
|
|
vg->lock_type = NULL;
|
|
vg->system_id = cmd->system_id ? dm_pool_strdup(vg->vgmem, cmd->system_id) : NULL;
|
|
return 1;
|
|
}
|
|
|
|
log_error("Cannot change to unknown lock type %s", lock_type);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function will not be called unless the local host is allowed to use the
|
|
* VG. Either the VG has no system_id, or the VG and host have matching
|
|
* system_ids, or the host has the VG's current system_id in its
|
|
* extra_system_ids list. This function is not allowed to change the system_id
|
|
* of a foreign VG (VG owned by another host).
|
|
*/
|
|
static int _vgchange_system_id(struct cmd_context *cmd, struct volume_group *vg)
|
|
{
|
|
const char *system_id;
|
|
const char *system_id_arg_str = arg_str_value(cmd, systemid_ARG, NULL);
|
|
|
|
/* FIXME Merge with vg_set_system_id() */
|
|
if (systemid_on_pvs(vg)) {
|
|
log_error("Metadata format %s does not support this type of system ID.",
|
|
vg->fid->fmt->name);
|
|
return 0;
|
|
}
|
|
|
|
if (!(system_id = system_id_from_string(cmd, system_id_arg_str))) {
|
|
log_error("Unable to set system ID.");
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(vg->system_id, system_id)) {
|
|
log_error("Volume Group system ID is already \"%s\".", vg->system_id);
|
|
return 0;
|
|
}
|
|
|
|
if (!*system_id && cmd->system_id && strcmp(system_id, cmd->system_id)) {
|
|
log_warn("WARNING: Removing the system ID allows unsafe access from other hosts.");
|
|
|
|
if (!arg_is_set(cmd, yes_ARG) &&
|
|
yes_no_prompt("Remove system ID %s from volume group %s? [y/n]: ",
|
|
vg->system_id, vg->name) == 'n') {
|
|
log_error("System ID of volume group %s not changed.", vg->name);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (*system_id && (!cmd->system_id || strcmp(system_id, cmd->system_id))) {
|
|
if (lvs_in_vg_activated(vg)) {
|
|
log_error("Logical Volumes in VG %s must be deactivated before system ID can be changed.",
|
|
vg->name);
|
|
return 0;
|
|
}
|
|
|
|
if (cmd->system_id)
|
|
log_warn("WARNING: Requested system ID %s does not match local system ID %s.",
|
|
system_id, cmd->system_id ? : "");
|
|
else
|
|
log_warn("WARNING: No local system ID is set.");
|
|
log_warn("WARNING: Volume group %s might become inaccessible from this machine.",
|
|
vg->name);
|
|
|
|
if (!arg_is_set(cmd, yes_ARG) &&
|
|
yes_no_prompt("Set foreign system ID %s on volume group %s? [y/n]: ",
|
|
system_id, vg->name) == 'n') {
|
|
log_error("Volume group %s system ID not changed.", vg->name);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
log_verbose("Changing system ID for VG %s from \"%s\" to \"%s\".",
|
|
vg->name, vg->system_id, system_id);
|
|
|
|
vg->system_id = system_id;
|
|
|
|
if (vg->lvm1_system_id)
|
|
*vg->lvm1_system_id = '\0';
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _passes_lock_start_filter(struct cmd_context *cmd,
|
|
struct volume_group *vg,
|
|
const int cfg_id)
|
|
{
|
|
const struct dm_config_node *cn;
|
|
const struct dm_config_value *cv;
|
|
const char *str;
|
|
|
|
/* undefined list means no restrictions, all vg names pass */
|
|
|
|
cn = find_config_tree_array(cmd, cfg_id, NULL);
|
|
if (!cn)
|
|
return 1;
|
|
|
|
/* with a defined list, the vg name must be included to pass */
|
|
|
|
for (cv = cn->v; cv; cv = cv->next) {
|
|
if (cv->type == DM_CFG_EMPTY_ARRAY)
|
|
break;
|
|
if (cv->type != DM_CFG_STRING) {
|
|
log_error("Ignoring invalid string in lock_start list");
|
|
continue;
|
|
}
|
|
str = cv->v.str;
|
|
if (!*str) {
|
|
log_error("Ignoring empty string in config file");
|
|
continue;
|
|
}
|
|
|
|
/* ignoring tags for now */
|
|
|
|
if (!strcmp(str, vg->name))
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int _vgchange_lock_start(struct cmd_context *cmd, struct volume_group *vg,
|
|
struct vgchange_params *vp)
|
|
{
|
|
const char *start_opt = arg_str_value(cmd, lockopt_ARG, NULL);
|
|
int auto_opt = 0;
|
|
int r;
|
|
|
|
if (!is_lockd_type(vg->lock_type))
|
|
return 1;
|
|
|
|
if (arg_is_set(cmd, force_ARG))
|
|
goto do_start;
|
|
|
|
/*
|
|
* Recognize both "auto" and "autonowait" options.
|
|
* Any waiting is done at the end of vgchange.
|
|
*/
|
|
if (start_opt && !strncmp(start_opt, "auto", 4))
|
|
auto_opt = 1;
|
|
|
|
if (!_passes_lock_start_filter(cmd, vg, activation_lock_start_list_CFG)) {
|
|
log_verbose("Not starting %s since it does not pass lock_start_list", vg->name);
|
|
return 1;
|
|
}
|
|
|
|
if (auto_opt && !_passes_lock_start_filter(cmd, vg, activation_auto_lock_start_list_CFG)) {
|
|
log_verbose("Not starting %s since it does not pass auto_lock_start_list", vg->name);
|
|
return 1;
|
|
}
|
|
|
|
do_start:
|
|
r = lockd_start_vg(cmd, vg, 0);
|
|
|
|
if (r)
|
|
vp->lock_start_count++;
|
|
if (!strcmp(vg->lock_type, "sanlock"))
|
|
vp->lock_start_sanlock = 1;
|
|
|
|
return r;
|
|
}
|
|
|
|
static int _vgchange_lock_stop(struct cmd_context *cmd, struct volume_group *vg)
|
|
{
|
|
return lockd_stop_vg(cmd, vg);
|
|
}
|
|
|
|
static int vgchange_single(struct cmd_context *cmd, const char *vg_name,
|
|
struct volume_group *vg,
|
|
struct processing_handle *handle)
|
|
{
|
|
struct vgchange_params *vp = (struct vgchange_params *)handle->custom_handle;
|
|
int ret = ECMD_PROCESSED;
|
|
unsigned i;
|
|
struct lv_list *lvl;
|
|
|
|
static const struct {
|
|
int arg;
|
|
int (*fn)(struct cmd_context *cmd, struct volume_group *vg);
|
|
} _vgchange_args[] = {
|
|
{ logicalvolume_ARG, &_vgchange_logicalvolume },
|
|
{ maxphysicalvolumes_ARG, &_vgchange_physicalvolumes },
|
|
{ resizeable_ARG, &_vgchange_resizeable },
|
|
{ deltag_ARG, &_vgchange_deltag },
|
|
{ addtag_ARG, &_vgchange_addtag },
|
|
{ physicalextentsize_ARG, &_vgchange_pesize },
|
|
{ uuid_ARG, &_vgchange_uuid },
|
|
{ alloc_ARG, &_vgchange_alloc },
|
|
{ clustered_ARG, &_vgchange_clustered },
|
|
{ vgmetadatacopies_ARG, &_vgchange_metadata_copies },
|
|
{ metadataprofile_ARG, &_vgchange_profile },
|
|
{ profile_ARG, &_vgchange_profile },
|
|
{ detachprofile_ARG, &_vgchange_profile },
|
|
{ locktype_ARG, &_vgchange_locktype },
|
|
{ systemid_ARG, &_vgchange_system_id },
|
|
};
|
|
|
|
if (vg_is_exported(vg) &&
|
|
!(arg_is_set(cmd, lockstop_ARG) || arg_is_set(cmd, lockstart_ARG))) {
|
|
log_error("Volume group \"%s\" is exported", vg_name);
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
/*
|
|
* FIXME: DEFAULT_BACKGROUND_POLLING should be "unspecified".
|
|
* If --poll is explicitly provided use it; otherwise polling
|
|
* should only be started if the LV is not already active. So:
|
|
* 1) change the activation code to say if the LV was actually activated
|
|
* 2) make polling of an LV tightly coupled with LV activation
|
|
*
|
|
* Do not initiate any polling if --sysinit option is used.
|
|
*/
|
|
init_background_polling(arg_is_set(cmd, sysinit_ARG) ? 0 :
|
|
arg_int_value(cmd, poll_ARG,
|
|
DEFAULT_BACKGROUND_POLLING));
|
|
|
|
for (i = 0; i < DM_ARRAY_SIZE(_vgchange_args); ++i) {
|
|
if (arg_is_set(cmd, _vgchange_args[i].arg)) {
|
|
if (!archive(vg))
|
|
return_ECMD_FAILED;
|
|
if (!_vgchange_args[i].fn(cmd, vg))
|
|
return_ECMD_FAILED;
|
|
}
|
|
}
|
|
|
|
if (vg_is_archived(vg)) {
|
|
if (!vg_write(vg) || !vg_commit(vg))
|
|
return_ECMD_FAILED;
|
|
|
|
backup(vg);
|
|
|
|
log_print_unless_silent("Volume group \"%s\" successfully changed", vg->name);
|
|
|
|
/* FIXME: fix clvmd bug and take DLM lock for non clustered VGs. */
|
|
if (arg_is_set(cmd, clustered_ARG) &&
|
|
vg_is_clustered(vg) && /* just switched to clustered */
|
|
locking_is_clustered() &&
|
|
locking_supports_remote_queries())
|
|
dm_list_iterate_items(lvl, &vg->lvs) {
|
|
if ((lv_lock_holder(lvl->lv) != lvl->lv) ||
|
|
!lv_is_active(lvl->lv))
|
|
continue;
|
|
|
|
if (!activate_lv_excl_local(cmd, lvl->lv) ||
|
|
!lv_is_active_exclusive_locally(lvl->lv)) {
|
|
log_error("Can't reactive logical volume %s, "
|
|
"please fix manually.",
|
|
display_lvname(lvl->lv));
|
|
ret = ECMD_FAILED;
|
|
}
|
|
|
|
if (lv_is_mirror(lvl->lv))
|
|
/* Give hint for clustered mirroring */
|
|
log_print_unless_silent("For clustered mirroring of %s "
|
|
"deactivation and activation is needed.",
|
|
display_lvname(lvl->lv));
|
|
}
|
|
}
|
|
|
|
if (arg_is_set(cmd, activate_ARG)) {
|
|
if (!vgchange_activate(cmd, vg, (activation_change_t)
|
|
arg_uint_value(cmd, activate_ARG, CHANGE_AY)))
|
|
return_ECMD_FAILED;
|
|
}
|
|
|
|
if (arg_is_set(cmd, refresh_ARG)) {
|
|
/* refreshes the visible LVs (which starts polling) */
|
|
if (!_vgchange_refresh(cmd, vg))
|
|
return_ECMD_FAILED;
|
|
}
|
|
|
|
if (!arg_is_set(cmd, activate_ARG) &&
|
|
!arg_is_set(cmd, refresh_ARG) &&
|
|
arg_is_set(cmd, monitor_ARG)) {
|
|
/* -ay* will have already done monitoring changes */
|
|
if (!_vgchange_monitoring(cmd, vg))
|
|
return_ECMD_FAILED;
|
|
}
|
|
|
|
if (!arg_is_set(cmd, refresh_ARG) &&
|
|
!vgchange_background_polling(cmd, vg))
|
|
return_ECMD_FAILED;
|
|
|
|
if (arg_is_set(cmd, lockstart_ARG)) {
|
|
if (!_vgchange_lock_start(cmd, vg, vp))
|
|
return_ECMD_FAILED;
|
|
} else if (arg_is_set(cmd, lockstop_ARG)) {
|
|
if (!_vgchange_lock_stop(cmd, vg))
|
|
return_ECMD_FAILED;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* vgchange can do different things that require different
|
|
* locking, so look at each of those things here.
|
|
*
|
|
* Set up overrides for the default VG locking for various special cases.
|
|
* The VG lock will be acquired in process_each_vg.
|
|
*
|
|
* Acquire the gl lock according to which kind of vgchange command this is.
|
|
*/
|
|
|
|
static int _lockd_vgchange(struct cmd_context *cmd, int argc, char **argv)
|
|
{
|
|
/* The default vg lock mode is ex, but these options only need sh. */
|
|
|
|
if (!lvmlockd_use() && arg_is_set(cmd, locktype_ARG)) {
|
|
log_error("Using lock type requires lvmlockd.");
|
|
return 0;
|
|
}
|
|
|
|
if (!lvmlockd_use() && (arg_is_set(cmd, lockstart_ARG) || arg_is_set(cmd, lockstop_ARG))) {
|
|
log_error("Using lock start and lock stop requires lvmlockd.");
|
|
return 0;
|
|
}
|
|
|
|
if (arg_is_set(cmd, activate_ARG) || arg_is_set(cmd, refresh_ARG)) {
|
|
cmd->lockd_vg_default_sh = 1;
|
|
/* Allow deactivating if locks fail. */
|
|
if (is_change_activating((activation_change_t)arg_uint_value(cmd, activate_ARG, CHANGE_AY)))
|
|
cmd->lockd_vg_enforce_sh = 1;
|
|
}
|
|
|
|
if (arg_is_set(cmd, lockstop_ARG))
|
|
cmd->lockd_vg_default_sh = 1;
|
|
|
|
/*
|
|
* Starting lockspaces. For VGs not yet started, locks are not
|
|
* available to acquire, and for VGs already started, there's nothing
|
|
* to do, so disable VG locks. Try to acquire the global lock sh to
|
|
* validate the cache (if no gl is available, lockd_gl will force a
|
|
* cache validation). If the global lock is available, it can be
|
|
* benficial to hold sh to serialize lock-start with vgremove of the
|
|
* same VG from another host.
|
|
*/
|
|
if (arg_is_set(cmd, lockstart_ARG)) {
|
|
cmd->lockd_vg_disable = 1;
|
|
|
|
if (!lockd_gl(cmd, "sh", 0))
|
|
log_debug("No global lock for lock start");
|
|
|
|
/* Disable the lockd_gl in process_each_vg. */
|
|
cmd->lockd_gl_disable = 1;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Changing system_id or lock_type must only be done on explicitly
|
|
* named vgs.
|
|
*/
|
|
|
|
if (arg_is_set(cmd, systemid_ARG) || arg_is_set(cmd, locktype_ARG))
|
|
cmd->cname->flags &= ~ALL_VGS_IS_DEFAULT;
|
|
|
|
if (arg_is_set(cmd, systemid_ARG) || arg_is_set(cmd, locktype_ARG)) {
|
|
/*
|
|
* This is a special case where taking the global lock is
|
|
* not needed to protect global state, because the change is
|
|
* only to an existing VG. But, taking the global lock ex is
|
|
* helpful in this case to trigger a global cache validation
|
|
* on other hosts, to cause them to see the new system_id or
|
|
* lock_type.
|
|
*/
|
|
if (!lockd_gl(cmd, "ex", LDGL_UPDATE_NAMES))
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int vgchange(struct cmd_context *cmd, int argc, char **argv)
|
|
{
|
|
struct processing_handle *handle;
|
|
struct vgchange_params vp = { 0 };
|
|
uint32_t flags = 0;
|
|
int ret;
|
|
|
|
int noupdate =
|
|
arg_is_set(cmd, activate_ARG) ||
|
|
arg_is_set(cmd, lockstart_ARG) ||
|
|
arg_is_set(cmd, lockstop_ARG) ||
|
|
arg_is_set(cmd, monitor_ARG) ||
|
|
arg_is_set(cmd, poll_ARG) ||
|
|
arg_is_set(cmd, refresh_ARG);
|
|
|
|
int update_partial_safe =
|
|
arg_is_set(cmd, deltag_ARG) ||
|
|
arg_is_set(cmd, addtag_ARG) ||
|
|
arg_is_set(cmd, metadataprofile_ARG) ||
|
|
arg_is_set(cmd, profile_ARG) ||
|
|
arg_is_set(cmd, detachprofile_ARG);
|
|
|
|
int update_partial_unsafe =
|
|
arg_is_set(cmd, logicalvolume_ARG) ||
|
|
arg_is_set(cmd, maxphysicalvolumes_ARG) ||
|
|
arg_is_set(cmd, resizeable_ARG) ||
|
|
arg_is_set(cmd, uuid_ARG) ||
|
|
arg_is_set(cmd, physicalextentsize_ARG) ||
|
|
arg_is_set(cmd, clustered_ARG) ||
|
|
arg_is_set(cmd, alloc_ARG) ||
|
|
arg_is_set(cmd, vgmetadatacopies_ARG) ||
|
|
arg_is_set(cmd, locktype_ARG) ||
|
|
arg_is_set(cmd, systemid_ARG);
|
|
|
|
int update = update_partial_safe || update_partial_unsafe;
|
|
|
|
if (!update && !noupdate) {
|
|
log_error("Need one or more command options.");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if ((arg_is_set(cmd, profile_ARG) || arg_is_set(cmd, metadataprofile_ARG)) &&
|
|
arg_is_set(cmd, detachprofile_ARG)) {
|
|
log_error("Only one of --metadataprofile and --detachprofile permitted.");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (arg_is_set(cmd, activate_ARG) && arg_is_set(cmd, refresh_ARG)) {
|
|
log_error("Only one of -a and --refresh permitted.");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if ((arg_is_set(cmd, ignorelockingfailure_ARG) ||
|
|
arg_is_set(cmd, sysinit_ARG)) && update) {
|
|
log_error("Only -a permitted with --ignorelockingfailure and --sysinit");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (arg_is_set(cmd, activate_ARG) &&
|
|
(arg_is_set(cmd, monitor_ARG) || arg_is_set(cmd, poll_ARG))) {
|
|
if (!is_change_activating((activation_change_t) arg_uint_value(cmd, activate_ARG, 0))) {
|
|
log_error("Only -ay* allowed with --monitor or --poll.");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
}
|
|
|
|
if (arg_is_set(cmd, poll_ARG) && arg_is_set(cmd, sysinit_ARG)) {
|
|
log_error("Only one of --poll and --sysinit permitted.");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (arg_is_set(cmd, activate_ARG) &&
|
|
arg_is_set(cmd, autobackup_ARG)) {
|
|
log_error("-A option not necessary with -a option");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (arg_is_set(cmd, maxphysicalvolumes_ARG) &&
|
|
arg_sign_value(cmd, maxphysicalvolumes_ARG, SIGN_NONE) == SIGN_MINUS) {
|
|
log_error("MaxPhysicalVolumes may not be negative");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
if (arg_is_set(cmd, physicalextentsize_ARG) &&
|
|
arg_sign_value(cmd, physicalextentsize_ARG, SIGN_NONE) == SIGN_MINUS) {
|
|
log_error("Physical extent size may not be negative");
|
|
return EINVALID_CMD_LINE;
|
|
}
|
|
|
|
/*
|
|
* If --sysinit -aay is used and at the same time lvmetad is used,
|
|
* we want to rely on autoactivation to take place. Also, we
|
|
* need to take special care here as lvmetad service does
|
|
* not neet to be running at this moment yet - it could be
|
|
* just too early during system initialization time.
|
|
*/
|
|
if (arg_is_set(cmd, sysinit_ARG) && (arg_uint_value(cmd, activate_ARG, 0) == CHANGE_AAY)) {
|
|
if (lvmetad_used()) {
|
|
log_warn("WARNING: lvmetad is active, skipping direct activation during sysinit");
|
|
return ECMD_PROCESSED;
|
|
}
|
|
}
|
|
|
|
if (arg_is_set(cmd, clustered_ARG) && !argc && !arg_is_set(cmd, yes_ARG) &&
|
|
(yes_no_prompt("Change clustered property of all volumes groups? [y/n]: ") == 'n')) {
|
|
log_error("No volume groups changed.");
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
if (!update || !update_partial_unsafe)
|
|
cmd->handles_missing_pvs = 1;
|
|
|
|
/*
|
|
* Include foreign VGs that contain active LVs.
|
|
* That shouldn't happen in general, but if it does by some
|
|
* mistake, then we want to allow those LVs to be deactivated.
|
|
*/
|
|
if (arg_is_set(cmd, activate_ARG))
|
|
cmd->include_active_foreign_vgs = 1;
|
|
|
|
if (!_lockd_vgchange(cmd, argc, argv))
|
|
return_ECMD_FAILED;
|
|
|
|
if (update)
|
|
flags |= READ_FOR_UPDATE;
|
|
if (arg_is_set(cmd, lockstart_ARG) || arg_is_set(cmd, lockstop_ARG))
|
|
flags |= READ_ALLOW_EXPORTED;
|
|
|
|
if (!(handle = init_processing_handle(cmd, NULL))) {
|
|
log_error("Failed to initialize processing handle.");
|
|
return ECMD_FAILED;
|
|
}
|
|
|
|
handle->custom_handle = &vp;
|
|
|
|
ret = process_each_vg(cmd, argc, argv, NULL, NULL, flags, 0, handle, &vgchange_single);
|
|
|
|
/* Wait for lock-start ops that were initiated in vgchange_lockstart. */
|
|
|
|
if (arg_is_set(cmd, lockstart_ARG) && vp.lock_start_count) {
|
|
const char *start_opt = arg_str_value(cmd, lockopt_ARG, NULL);
|
|
|
|
if (!lockd_gl(cmd, "un", 0))
|
|
stack;
|
|
|
|
if (!start_opt || !strcmp(start_opt, "auto")) {
|
|
if (vp.lock_start_sanlock)
|
|
log_print_unless_silent("Starting locking. Waiting for sanlock may take 20 sec to 3 min...");
|
|
else
|
|
log_print_unless_silent("Starting locking. Waiting until locks are ready...");
|
|
lockd_start_wait(cmd);
|
|
} else if (!strcmp(start_opt, "nowait") || !strcmp(start_opt, "autonowait")) {
|
|
log_print_unless_silent("Starting locking. VG can only be read until locks are ready.");
|
|
}
|
|
}
|
|
|
|
destroy_processing_handle(cmd, handle);
|
|
return ret;
|
|
}
|