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7e3141512a
Add a very simple version of lvm_vg_remove_lv. Since we currently can only create linear LVs, this simple remove function is adequate. We must refactor lvremove_single a bit. Author: Dave Wysochanski <dwysocha@redhat.com>
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*
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* Copyright (C) 2008,2009 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 "lib.h"
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#include "lvm.h"
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#include "metadata-exported.h"
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#include "lvm-string.h"
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#include "defaults.h"
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#include "segtype.h"
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#include <string.h>
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/* FIXME: have lib/report/report.c _disp function call lv_size()? */
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uint64_t lvm_lv_get_size(const lv_t *lv)
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{
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return lv_size(lv);
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}
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char *lvm_lv_get_uuid(const lv_t *lv)
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{
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char uuid[64] __attribute((aligned(8)));
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if (!id_write_format(&lv->lvid.id[1], uuid, sizeof(uuid))) {
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log_error("Internal error converting uuid");
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return NULL;
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}
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return strndup((const char *)uuid, 64);
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}
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char *lvm_lv_get_name(const lv_t *lv)
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{
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char *name;
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name = malloc(NAME_LEN + 1);
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strncpy(name, (const char *)lv->name, NAME_LEN);
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name[NAME_LEN] = '\0';
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return name;
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}
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/* Set defaults for non-segment specific LV parameters */
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static void _lv_set_default_params(struct lvcreate_params *lp,
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vg_t *vg, const char *lvname,
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uint64_t extents)
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{
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lp->zero = 1;
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lp->major = -1;
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lp->minor = -1;
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lp->vg_name = vg->name;
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lp->lv_name = lvname; /* FIXME: check this for safety */
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lp->pvh = &vg->pvs;
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lp->extents = extents;
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lp->permission = LVM_READ | LVM_WRITE;
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lp->read_ahead = DM_READ_AHEAD_NONE;
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lp->alloc = ALLOC_INHERIT;
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lp->tag = NULL;
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}
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/* Set default for linear segment specific LV parameters */
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static void _lv_set_default_linear_params(struct cmd_context *cmd,
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struct lvcreate_params *lp)
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{
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lp->segtype = get_segtype_from_string(cmd, "striped");
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lp->stripes = 1;
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lp->stripe_size = DEFAULT_STRIPESIZE * 2;
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}
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lv_t *lvm_vg_create_lv_linear(vg_t *vg, const char *name, uint64_t size)
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{
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struct lvcreate_params lp;
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uint64_t extents;
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struct lv_list *lvl;
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/* FIXME: check for proper VG access */
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if (vg_read_error(vg))
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return NULL;
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memset(&lp, 0, sizeof(lp));
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extents = extents_from_size(vg->cmd, size, vg->extent_size);
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_lv_set_default_params(&lp, vg, name, extents);
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_lv_set_default_linear_params(vg->cmd, &lp);
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if (!lv_create_single(vg, &lp))
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return NULL;
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lvl = find_lv_in_vg(vg, name);
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if (!lvl)
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return NULL;
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return lvl->lv;
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}
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int lvm_vg_remove_lv(lv_t *lv)
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{
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if (!lv || !lv->vg || vg_read_error(lv->vg))
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return 0;
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return lv_remove_single(lv->vg->cmd, lv, DONT_PROMPT);
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}
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