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9a8c36b891
vgreduce, vgremove and vgcfgrestore were acquiring the orphan lock in the midst of command processing instead of at the start of the command. (The orphan lock moved to being acquired at the start of the command back when pvcreate/vgcreate/vgextend were reworked based on pvcreate_each_device.) vgsplit also needed a small update to avoid reacquiring a VG lock that it already held (for the new VG name).
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2014 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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static int _vgremove_single(struct cmd_context *cmd, const char *vg_name,
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struct volume_group *vg,
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struct processing_handle *handle __attribute__((unused)))
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{
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/*
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* Though vgremove operates per VG by definition, internally, it
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* actually means iterating over each LV it contains to do the remove.
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*
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* Use processing handle with void_handle.internal_report_for_select=0
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* for the process_each_lv_in_vg that is called later in this fn.
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* We need to disable internal selection for process_each_lv_in_vg
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* here as selection is already done by process_each_vg which calls
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* vgremove_single. Otherwise selection would be done per-LV and
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* not per-VG as we intend!
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*/
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struct processing_handle void_handle = {0};
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/*
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* Single force is equivalent to sinle --yes
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* Even multiple --yes are equivalent to single --force
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* When we require -ff it cannot be replaces with -f -y
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*/
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force_t force = (force_t) arg_count(cmd, force_ARG)
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? : (arg_is_set(cmd, yes_ARG) ? DONT_PROMPT : PROMPT);
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unsigned lv_count, missing;
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int ret;
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if (!vg_check_status(vg, EXPORTED_VG))
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return_ECMD_FAILED;
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lv_count = vg_visible_lvs(vg);
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if (lv_count) {
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if (force == PROMPT) {
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if ((missing = vg_missing_pv_count(vg)))
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log_warn("WARNING: %d physical volumes are currently missing "
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"from the system.", missing);
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if (yes_no_prompt("Do you really want to remove volume "
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"group \"%s\" containing %u "
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"logical volumes? [y/n]: ",
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vg_name, lv_count) == 'n') {
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log_error("Volume group \"%s\" not removed", vg_name);
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return ECMD_FAILED;
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}
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}
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if ((ret = process_each_lv_in_vg(cmd, vg, NULL, NULL, 1, &void_handle,
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NULL, (process_single_lv_fn_t)lvremove_single)) != ECMD_PROCESSED) {
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stack;
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return ret;
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}
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}
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if (!lockd_free_vg_before(cmd, vg, 0))
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return_ECMD_FAILED;
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if (!force && !vg_remove_check(vg))
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return_ECMD_FAILED;
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vg_remove_pvs(vg);
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if (!vg_remove(vg))
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return_ECMD_FAILED;
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lockd_free_vg_final(cmd, vg);
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return ECMD_PROCESSED;
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}
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int vgremove(struct cmd_context *cmd, int argc, char **argv)
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{
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int ret;
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if (!argc && !arg_is_set(cmd, select_ARG)) {
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log_error("Please enter one or more volume group paths "
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"or use --select for selection.");
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return EINVALID_CMD_LINE;
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}
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/*
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* Needed to change the global VG namespace,
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* and to change the set of orphan PVs.
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*/
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if (!lockd_gl(cmd, "ex", LDGL_UPDATE_NAMES))
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return ECMD_FAILED;
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/*
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* This is a special case: if vgremove is given a tag, it causes
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* process_each_vg to do lockd_gl(sh) when getting a list of all
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* VG names. We don't want the gl converted to sh, so disable it.
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*/
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cmd->lockd_gl_disable = 1;
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if (!lock_vol(cmd, VG_ORPHANS, LCK_VG_WRITE, NULL)) {
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log_error("Can't get lock for orphan PVs");
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return ECMD_FAILED;
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}
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cmd->handles_missing_pvs = 1;
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ret = process_each_vg(cmd, argc, argv, NULL, NULL,
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READ_FOR_UPDATE, 0,
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NULL, &_vgremove_single);
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unlock_vg(cmd, NULL, VG_ORPHANS);
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return ret;
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}
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