mirror of
git://sourceware.org/git/lvm2.git
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1034 lines
21 KiB
C
1034 lines
21 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2005 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 General Public License v.2.
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*
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* You should have received a copy of the GNU 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 "metadata.h"
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#include "activate.h"
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#include "memlock.h"
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#include "display.h"
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#include "fs.h"
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#include "lvm-exec.h"
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#include "lvm-file.h"
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#include "lvm-string.h"
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#include "toolcontext.h"
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#include "dev_manager.h"
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#include "str_list.h"
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#include "config.h"
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#include "filter.h"
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#include "segtype.h"
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#include <limits.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define _skip(fmt, args...) log_very_verbose("Skipping: " fmt , ## args)
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int lvm1_present(struct cmd_context *cmd)
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{
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char path[PATH_MAX];
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if (dm_snprintf(path, sizeof(path), "%s/lvm/global", cmd->proc_dir)
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< 0) {
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log_error("LVM1 proc global snprintf failed");
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return 0;
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}
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if (path_exists(path))
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return 1;
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else
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return 0;
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}
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int list_segment_modules(struct dm_pool *mem, const struct lv_segment *seg,
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struct list *modules)
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{
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unsigned int s;
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struct lv_segment *seg2, *snap_seg;
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struct list *snh;
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if (seg->segtype->ops->modules_needed &&
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!seg->segtype->ops->modules_needed(mem, seg, modules)) {
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log_error("module string allocation failed");
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return 0;
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}
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if (lv_is_origin(seg->lv))
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list_iterate(snh, &seg->lv->snapshot_segs)
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if (!list_lv_modules(mem,
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list_struct_base(snh,
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struct lv_segment,
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origin_list)->cow,
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modules))
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return_0;
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if (lv_is_cow(seg->lv)) {
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snap_seg = find_cow(seg->lv);
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if (snap_seg->segtype->ops->modules_needed &&
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!snap_seg->segtype->ops->modules_needed(mem, snap_seg,
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modules)) {
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log_error("snap_seg module string allocation failed");
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return 0;
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}
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}
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for (s = 0; s < seg->area_count; s++) {
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switch (seg_type(seg, s)) {
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case AREA_LV:
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seg2 = find_seg_by_le(seg_lv(seg, s), seg_le(seg, s));
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if (seg2 && !list_segment_modules(mem, seg2, modules))
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return_0;
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break;
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case AREA_PV:
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case AREA_UNASSIGNED:
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;
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}
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}
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return 1;
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}
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int list_lv_modules(struct dm_pool *mem, const struct logical_volume *lv,
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struct list *modules)
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{
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struct lv_segment *seg;
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list_iterate_items(seg, &lv->segments)
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if (!list_segment_modules(mem, seg, modules))
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return_0;
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return 1;
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}
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#ifndef DEVMAPPER_SUPPORT
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void set_activation(int act)
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{
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static int warned = 0;
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if (warned || !act)
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return;
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log_error("Compiled without libdevmapper support. "
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"Can't enable activation.");
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warned = 1;
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}
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int activation(void)
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{
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return 0;
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}
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int library_version(char *version, size_t size)
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{
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return 0;
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}
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int driver_version(char *version, size_t size)
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{
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return 0;
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}
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int target_version(const char *target_name, uint32_t *maj,
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uint32_t *min, uint32_t *patchlevel)
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{
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return 0;
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}
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int target_present(const char *target_name, int use_modprobe)
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{
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return 0;
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}
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int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info,
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int with_open_count)
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{
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return 0;
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}
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int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s,
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struct lvinfo *info, int with_open_count)
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{
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return 0;
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}
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int lv_snapshot_percent(const struct logical_volume *lv, float *percent)
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{
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return 0;
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}
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int lv_mirror_percent(struct cmd_context *cmd, struct logical_volume *lv,
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int wait, float *percent, uint32_t *event_nr)
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{
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return 0;
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}
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int lvs_in_vg_activated(struct volume_group *vg)
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{
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return 0;
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}
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int lvs_in_vg_activated_by_uuid_only(struct volume_group *vg);
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{
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return 0;
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}
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int lvs_in_vg_opened(struct volume_group *vg)
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{
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return 0;
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}
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int lv_suspend(struct cmd_context *cmd, const char *lvid_s)
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{
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return 1;
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}
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int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
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{
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return 1;
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}
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int lv_resume(struct cmd_context *cmd, const char *lvid_s)
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{
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return 1;
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}
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int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
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{
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return 1;
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}
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int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
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{
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return 1;
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}
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int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s,
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int *activate_lv)
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{
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return 1;
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}
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int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive)
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{
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return 1;
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}
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int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive)
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{
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return 1;
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}
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int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv)
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{
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return 1;
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}
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int pv_uses_vg(struct physical_volume *pv,
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struct volume_group *vg)
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{
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return 0;
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}
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void activation_release(void)
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{
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return;
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}
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void activation_exit(void)
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{
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return;
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}
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#else /* DEVMAPPER_SUPPORT */
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static int _activation = 1;
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void set_activation(int act)
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{
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if (act == _activation)
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return;
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_activation = act;
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if (_activation)
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log_verbose("Activation enabled. Device-mapper kernel "
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"driver will be used.");
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else
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log_print("WARNING: Activation disabled. No device-mapper "
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"interaction will be attempted.");
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}
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int activation(void)
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{
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return _activation;
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}
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static int _passes_activation_filter(struct cmd_context *cmd,
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struct logical_volume *lv)
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{
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const struct config_node *cn;
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struct config_value *cv;
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char *str;
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char path[PATH_MAX];
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if (!(cn = find_config_tree_node(cmd, "activation/volume_list"))) {
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/* If no host tags defined, activate */
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if (list_empty(&cmd->tags))
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return 1;
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/* If any host tag matches any LV or VG tag, activate */
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if (str_list_match_list(&cmd->tags, &lv->tags) ||
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str_list_match_list(&cmd->tags, &lv->vg->tags))
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return 1;
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/* Don't activate */
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return 0;
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}
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for (cv = cn->v; cv; cv = cv->next) {
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if (cv->type != CFG_STRING) {
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log_error("Ignoring invalid string in config file "
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"activation/volume_list");
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continue;
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}
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str = cv->v.str;
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if (!*str) {
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log_error("Ignoring empty string in config file "
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"activation/volume_list");
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continue;
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}
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/* Tag? */
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if (*str == '@') {
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str++;
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if (!*str) {
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log_error("Ignoring empty tag in config file "
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"activation/volume_list");
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continue;
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}
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/* If any host tag matches any LV or VG tag, activate */
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if (!strcmp(str, "*")) {
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if (str_list_match_list(&cmd->tags, &lv->tags)
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|| str_list_match_list(&cmd->tags,
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&lv->vg->tags))
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return 1;
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else
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continue;
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}
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/* If supplied tag matches LV or VG tag, activate */
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if (str_list_match_item(&lv->tags, str) ||
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str_list_match_item(&lv->vg->tags, str))
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return 1;
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else
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continue;
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}
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if (!index(str, '/')) {
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/* vgname supplied */
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if (!strcmp(str, lv->vg->name))
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return 1;
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else
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continue;
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}
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/* vgname/lvname */
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if (dm_snprintf(path, sizeof(path), "%s/%s", lv->vg->name,
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lv->name) < 0) {
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log_error("dm_snprintf error from %s/%s", lv->vg->name,
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lv->name);
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continue;
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}
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if (!strcmp(path, str))
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return 1;
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}
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return 0;
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}
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int library_version(char *version, size_t size)
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{
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if (!activation())
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return 0;
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return dm_get_library_version(version, size);
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}
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int driver_version(char *version, size_t size)
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{
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if (!activation())
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return 0;
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log_very_verbose("Getting driver version");
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return dm_driver_version(version, size);
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}
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int target_version(const char *target_name, uint32_t *maj,
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uint32_t *min, uint32_t *patchlevel)
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{
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int r = 0;
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struct dm_task *dmt;
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struct dm_versions *target, *last_target;
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log_very_verbose("Getting target version for %s", target_name);
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if (!(dmt = dm_task_create(DM_DEVICE_LIST_VERSIONS)))
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return_0;
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if (!dm_task_run(dmt)) {
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log_debug("Failed to get %s target version", target_name);
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/* Assume this was because LIST_VERSIONS isn't supported */
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return 1;
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}
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target = dm_task_get_versions(dmt);
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do {
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last_target = target;
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if (!strcmp(target_name, target->name)) {
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r = 1;
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*maj = target->version[0];
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*min = target->version[1];
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*patchlevel = target->version[2];
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goto out;
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}
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target = (void *) target + target->next;
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} while (last_target != target);
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out:
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dm_task_destroy(dmt);
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return r;
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}
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int target_present(const char *target_name, int use_modprobe)
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{
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uint32_t maj, min, patchlevel;
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#ifdef MODPROBE_CMD
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char module[128];
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#endif
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if (!activation())
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return 0;
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#ifdef MODPROBE_CMD
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if (use_modprobe) {
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if (target_version(target_name, &maj, &min, &patchlevel))
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return 1;
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if (dm_snprintf(module, sizeof(module), "dm-%s", target_name)
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< 0) {
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log_error("target_present module name too long: %s",
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target_name);
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return 0;
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}
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if (!exec_cmd(MODPROBE_CMD, module, "", ""))
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return_0;
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}
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#endif
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return target_version(target_name, &maj, &min, &patchlevel);
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}
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/*
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* Returns 1 if info structure populated, else 0 on failure.
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*/
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static int _lv_info(struct cmd_context *cmd, const struct logical_volume *lv, int with_mknodes,
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struct lvinfo *info, int with_open_count, unsigned by_uuid_only)
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{
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struct dm_info dminfo;
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char *name = NULL;
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if (!activation())
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return 0;
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if (!by_uuid_only &&
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!(name = build_dm_name(cmd->mem, lv->vg->name, lv->name, NULL)))
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return_0;
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log_debug("Getting device info for %s", name);
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if (!dev_manager_info(lv->vg->cmd->mem, name, lv, with_mknodes,
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with_open_count, &dminfo)) {
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if (name)
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dm_pool_free(cmd->mem, name);
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return_0;
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}
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info->exists = dminfo.exists;
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info->suspended = dminfo.suspended;
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info->open_count = dminfo.open_count;
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info->major = dminfo.major;
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info->minor = dminfo.minor;
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info->read_only = dminfo.read_only;
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info->live_table = dminfo.live_table;
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info->inactive_table = dminfo.inactive_table;
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if (name)
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dm_pool_free(cmd->mem, name);
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return 1;
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}
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int lv_info(struct cmd_context *cmd, const struct logical_volume *lv, struct lvinfo *info,
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int with_open_count)
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{
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return _lv_info(cmd, lv, 0, info, with_open_count, 0);
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}
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int lv_info_by_lvid(struct cmd_context *cmd, const char *lvid_s,
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struct lvinfo *info, int with_open_count)
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{
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struct logical_volume *lv;
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if (!(lv = lv_from_lvid(cmd, lvid_s, 0)))
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return 0;
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return _lv_info(cmd, lv, 0, info, with_open_count, 0);
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}
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|
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/*
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* Returns 1 if percent set, else 0 on failure.
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*/
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int lv_snapshot_percent(const struct logical_volume *lv, float *percent)
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{
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int r;
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struct dev_manager *dm;
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if (!activation())
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return 0;
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if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name)))
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return_0;
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if (!(r = dev_manager_snapshot_percent(dm, lv, percent)))
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stack;
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dev_manager_destroy(dm);
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return r;
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}
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|
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/* FIXME Merge with snapshot_percent */
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int lv_mirror_percent(struct cmd_context *cmd, struct logical_volume *lv,
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int wait, float *percent, uint32_t *event_nr)
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{
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int r;
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struct dev_manager *dm;
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struct lvinfo info;
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if (!activation())
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return 0;
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if (!lv_info(cmd, lv, &info, 0))
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return_0;
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if (!info.exists)
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return 0;
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if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name)))
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return_0;
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if (!(r = dev_manager_mirror_percent(dm, lv, wait, percent, event_nr)))
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stack;
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dev_manager_destroy(dm);
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return r;
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}
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|
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static int _lv_active(struct cmd_context *cmd, struct logical_volume *lv,
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unsigned by_uuid_only)
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{
|
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struct lvinfo info;
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if (!_lv_info(cmd, lv, 0, &info, 0, by_uuid_only)) {
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stack;
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return -1;
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}
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return info.exists;
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}
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|
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static int _lv_open_count(struct cmd_context *cmd, struct logical_volume *lv)
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{
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struct lvinfo info;
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|
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if (!lv_info(cmd, lv, &info, 1)) {
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stack;
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return -1;
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}
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return info.open_count;
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}
|
|
|
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static int _lv_activate_lv(struct logical_volume *lv)
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{
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int r;
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struct dev_manager *dm;
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|
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if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name)))
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return_0;
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|
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if (!(r = dev_manager_activate(dm, lv)))
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stack;
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|
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dev_manager_destroy(dm);
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return r;
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}
|
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|
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static int _lv_preload(struct logical_volume *lv)
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{
|
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int r;
|
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struct dev_manager *dm;
|
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|
|
if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name)))
|
|
return_0;
|
|
|
|
if (!(r = dev_manager_preload(dm, lv)))
|
|
stack;
|
|
|
|
dev_manager_destroy(dm);
|
|
return r;
|
|
}
|
|
|
|
static int _lv_deactivate(struct logical_volume *lv)
|
|
{
|
|
int r;
|
|
struct dev_manager *dm;
|
|
|
|
if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name)))
|
|
return_0;
|
|
|
|
if (!(r = dev_manager_deactivate(dm, lv)))
|
|
stack;
|
|
|
|
dev_manager_destroy(dm);
|
|
return r;
|
|
}
|
|
|
|
static int _lv_suspend_lv(struct logical_volume *lv, int lockfs)
|
|
{
|
|
int r;
|
|
struct dev_manager *dm;
|
|
|
|
if (!(dm = dev_manager_create(lv->vg->cmd, lv->vg->name)))
|
|
return_0;
|
|
|
|
if (!(r = dev_manager_suspend(dm, lv, lockfs)))
|
|
stack;
|
|
|
|
dev_manager_destroy(dm);
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* These two functions return the number of visible LVs in the state,
|
|
* or -1 on error.
|
|
*/
|
|
static int _lvs_in_vg_activated(struct volume_group *vg, unsigned by_uuid_only)
|
|
{
|
|
struct lv_list *lvl;
|
|
int count = 0;
|
|
|
|
if (!activation())
|
|
return 0;
|
|
|
|
list_iterate_items(lvl, &vg->lvs) {
|
|
if (lvl->lv->status & VISIBLE_LV)
|
|
count += (_lv_active(vg->cmd, lvl->lv, by_uuid_only) == 1);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
int lvs_in_vg_activated_by_uuid_only(struct volume_group *vg)
|
|
{
|
|
return _lvs_in_vg_activated(vg, 1);
|
|
}
|
|
|
|
int lvs_in_vg_activated(struct volume_group *vg)
|
|
{
|
|
return _lvs_in_vg_activated(vg, 0);
|
|
}
|
|
|
|
int lvs_in_vg_opened(struct volume_group *vg)
|
|
{
|
|
struct lv_list *lvl;
|
|
int count = 0;
|
|
|
|
if (!activation())
|
|
return 0;
|
|
|
|
list_iterate_items(lvl, &vg->lvs) {
|
|
if (lvl->lv->status & VISIBLE_LV)
|
|
count += (_lv_open_count(vg->cmd, lvl->lv) > 0);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* Returns 0 if an attempt to (un)monitor the device failed.
|
|
* Returns 1 otherwise.
|
|
*/
|
|
int monitor_dev_for_events(struct cmd_context *cmd,
|
|
struct logical_volume *lv, int monitor)
|
|
{
|
|
#ifdef DMEVENTD
|
|
int i, pending = 0, monitored;
|
|
int r = 1;
|
|
struct list *tmp;
|
|
struct lv_segment *seg;
|
|
int (*monitor_fn) (struct lv_segment *s, int e);
|
|
|
|
/* skip dmeventd code altogether */
|
|
if (dmeventd_monitor_mode() == DMEVENTD_MONITOR_IGNORE)
|
|
return 1;
|
|
|
|
/*
|
|
* Nothing to do if dmeventd configured not to be used.
|
|
*/
|
|
if (monitor && !dmeventd_monitor_mode())
|
|
return 1;
|
|
|
|
list_iterate(tmp, &lv->segments) {
|
|
seg = list_item(tmp, struct lv_segment);
|
|
|
|
if (!seg_monitored(seg) || (seg->status & PVMOVE))
|
|
continue;
|
|
|
|
monitor_fn = NULL;
|
|
|
|
/* Check monitoring status */
|
|
if (seg->segtype->ops->target_monitored)
|
|
monitored = seg->segtype->ops->target_monitored(seg, &pending);
|
|
else
|
|
continue; /* segtype doesn't support registration */
|
|
|
|
/*
|
|
* FIXME: We should really try again if pending
|
|
*/
|
|
monitored = (pending) ? 0 : monitored;
|
|
|
|
if (monitor) {
|
|
if (monitored)
|
|
log_verbose("%s/%s already monitored.", lv->vg->name, lv->name);
|
|
else if (seg->segtype->ops->target_monitor_events)
|
|
monitor_fn = seg->segtype->ops->target_monitor_events;
|
|
} else {
|
|
if (!monitored)
|
|
log_verbose("%s/%s already not monitored.", lv->vg->name, lv->name);
|
|
else if (seg->segtype->ops->target_unmonitor_events)
|
|
monitor_fn = seg->segtype->ops->target_unmonitor_events;
|
|
}
|
|
|
|
/* Do [un]monitor */
|
|
if (!monitor_fn)
|
|
continue;
|
|
|
|
log_verbose("%sonitoring %s/%s", monitor ? "M" : "Not m", lv->vg->name, lv->name);
|
|
|
|
/* FIXME specify events */
|
|
if (!monitor_fn(seg, 0)) {
|
|
log_error("%s/%s: %s segment monitoring function failed.",
|
|
lv->vg->name, lv->name, seg->segtype->name);
|
|
return 0;
|
|
}
|
|
|
|
/* Check [un]monitor results */
|
|
/* Try a couple times if pending, but not forever... */
|
|
for (i = 0; i < 10; i++) {
|
|
pending = 0;
|
|
monitored = seg->segtype->ops->target_monitored(seg, &pending);
|
|
if (pending ||
|
|
(!monitored && monitor) ||
|
|
(monitored && !monitor))
|
|
log_very_verbose("%s/%s %smonitoring still pending: waiting...",
|
|
lv->vg->name, lv->name, monitor ? "" : "un");
|
|
else
|
|
break;
|
|
sleep(1);
|
|
}
|
|
|
|
r = (monitored && monitor) || (!monitored && !monitor);
|
|
}
|
|
|
|
return r;
|
|
#else
|
|
return 1;
|
|
#endif
|
|
}
|
|
|
|
static int _lv_suspend(struct cmd_context *cmd, const char *lvid_s,
|
|
int error_if_not_suspended)
|
|
{
|
|
struct logical_volume *lv, *lv_pre;
|
|
struct lvinfo info;
|
|
int lockfs = 0;
|
|
|
|
if (!activation())
|
|
return 1;
|
|
|
|
if (!(lv = lv_from_lvid(cmd, lvid_s, 0)))
|
|
return_0;
|
|
|
|
/* Use precommitted metadata if present */
|
|
if (!(lv_pre = lv_from_lvid(cmd, lvid_s, 1)))
|
|
return_0;
|
|
|
|
if (test_mode()) {
|
|
_skip("Suspending '%s'.", lv->name);
|
|
return 1;
|
|
}
|
|
|
|
if (!lv_info(cmd, lv, &info, 0))
|
|
return_0;
|
|
|
|
if (!info.exists || info.suspended)
|
|
return error_if_not_suspended ? 0 : 1;
|
|
|
|
/* If VG was precommitted, preload devices for the LV */
|
|
if ((lv_pre->vg->status & PRECOMMITTED)) {
|
|
if (!_lv_preload(lv_pre)) {
|
|
/* FIXME Revert preloading */
|
|
return_0;
|
|
}
|
|
}
|
|
|
|
if (!monitor_dev_for_events(cmd, lv, 0))
|
|
/* FIXME Consider aborting here */
|
|
stack;
|
|
|
|
memlock_inc();
|
|
|
|
if (lv_is_origin(lv_pre) || lv_is_cow(lv_pre))
|
|
lockfs = 1;
|
|
|
|
if (!_lv_suspend_lv(lv, lockfs)) {
|
|
memlock_dec();
|
|
fs_unlock();
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Returns success if the device is not active */
|
|
int lv_suspend_if_active(struct cmd_context *cmd, const char *lvid_s)
|
|
{
|
|
return _lv_suspend(cmd, lvid_s, 0);
|
|
}
|
|
|
|
int lv_suspend(struct cmd_context *cmd, const char *lvid_s)
|
|
{
|
|
return _lv_suspend(cmd, lvid_s, 1);
|
|
}
|
|
|
|
static int _lv_resume(struct cmd_context *cmd, const char *lvid_s,
|
|
int error_if_not_active)
|
|
{
|
|
struct logical_volume *lv;
|
|
struct lvinfo info;
|
|
|
|
if (!activation())
|
|
return 1;
|
|
|
|
if (!(lv = lv_from_lvid(cmd, lvid_s, 0)))
|
|
return 0;
|
|
|
|
if (test_mode()) {
|
|
_skip("Resuming '%s'.", lv->name);
|
|
return 1;
|
|
}
|
|
|
|
if (!lv_info(cmd, lv, &info, 0))
|
|
return_0;
|
|
|
|
if (!info.exists || !info.suspended)
|
|
return error_if_not_active ? 0 : 1;
|
|
|
|
if (!_lv_activate_lv(lv))
|
|
return 0;
|
|
|
|
memlock_dec();
|
|
fs_unlock();
|
|
|
|
if (!monitor_dev_for_events(cmd, lv, 1))
|
|
stack;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Returns success if the device is not active */
|
|
int lv_resume_if_active(struct cmd_context *cmd, const char *lvid_s)
|
|
{
|
|
return _lv_resume(cmd, lvid_s, 0);
|
|
}
|
|
|
|
int lv_resume(struct cmd_context *cmd, const char *lvid_s)
|
|
{
|
|
return _lv_resume(cmd, lvid_s, 1);
|
|
}
|
|
|
|
int lv_deactivate(struct cmd_context *cmd, const char *lvid_s)
|
|
{
|
|
struct logical_volume *lv;
|
|
struct lvinfo info;
|
|
int r;
|
|
|
|
if (!activation())
|
|
return 1;
|
|
|
|
if (!(lv = lv_from_lvid(cmd, lvid_s, 0)))
|
|
return 0;
|
|
|
|
if (test_mode()) {
|
|
_skip("Deactivating '%s'.", lv->name);
|
|
return 1;
|
|
}
|
|
|
|
if (!lv_info(cmd, lv, &info, 1))
|
|
return_0;
|
|
|
|
if (!info.exists)
|
|
return 1;
|
|
|
|
if (info.open_count && (lv->status & VISIBLE_LV)) {
|
|
log_error("LV %s/%s in use: not deactivating", lv->vg->name,
|
|
lv->name);
|
|
return 0;
|
|
}
|
|
|
|
if (!monitor_dev_for_events(cmd, lv, 0))
|
|
stack;
|
|
|
|
memlock_inc();
|
|
r = _lv_deactivate(lv);
|
|
memlock_dec();
|
|
fs_unlock();
|
|
|
|
return r;
|
|
}
|
|
|
|
/* Test if LV passes filter */
|
|
int lv_activation_filter(struct cmd_context *cmd, const char *lvid_s,
|
|
int *activate_lv)
|
|
{
|
|
struct logical_volume *lv;
|
|
|
|
if (!activation())
|
|
goto activate;
|
|
|
|
if (!(lv = lv_from_lvid(cmd, lvid_s, 0)))
|
|
return 0;
|
|
|
|
if (!_passes_activation_filter(cmd, lv)) {
|
|
log_verbose("Not activating %s/%s due to config file settings",
|
|
lv->vg->name, lv->name);
|
|
*activate_lv = 0;
|
|
return 1;
|
|
}
|
|
|
|
activate:
|
|
*activate_lv = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int _lv_activate(struct cmd_context *cmd, const char *lvid_s,
|
|
int exclusive, int filter)
|
|
{
|
|
struct logical_volume *lv;
|
|
struct lvinfo info;
|
|
int r;
|
|
|
|
if (!activation())
|
|
return 1;
|
|
|
|
if (!(lv = lv_from_lvid(cmd, lvid_s, 0)))
|
|
return 0;
|
|
|
|
if (filter && !_passes_activation_filter(cmd, lv)) {
|
|
log_verbose("Not activating %s/%s due to config file settings",
|
|
lv->vg->name, lv->name);
|
|
return 0;
|
|
}
|
|
|
|
if (test_mode()) {
|
|
_skip("Activating '%s'.", lv->name);
|
|
return 1;
|
|
}
|
|
|
|
if (!lv_info(cmd, lv, &info, 0))
|
|
return_0;
|
|
|
|
if (info.exists && !info.suspended && info.live_table)
|
|
return 1;
|
|
|
|
if (exclusive)
|
|
lv->status |= ACTIVATE_EXCL;
|
|
|
|
memlock_inc();
|
|
r = _lv_activate_lv(lv);
|
|
memlock_dec();
|
|
fs_unlock();
|
|
|
|
if (!monitor_dev_for_events(cmd, lv, 1))
|
|
stack;
|
|
|
|
return r;
|
|
}
|
|
|
|
/* Activate LV */
|
|
int lv_activate(struct cmd_context *cmd, const char *lvid_s, int exclusive)
|
|
{
|
|
return _lv_activate(cmd, lvid_s, exclusive, 0);
|
|
}
|
|
|
|
/* Activate LV only if it passes filter */
|
|
int lv_activate_with_filter(struct cmd_context *cmd, const char *lvid_s, int exclusive)
|
|
{
|
|
return _lv_activate(cmd, lvid_s, exclusive, 1);
|
|
}
|
|
|
|
int lv_mknodes(struct cmd_context *cmd, const struct logical_volume *lv)
|
|
{
|
|
struct lvinfo info;
|
|
int r = 1;
|
|
|
|
if (!lv) {
|
|
r = dm_mknodes(NULL);
|
|
fs_unlock();
|
|
return r;
|
|
}
|
|
|
|
if (!_lv_info(cmd, lv, 1, &info, 0, 0))
|
|
return_0;
|
|
|
|
if (info.exists)
|
|
r = dev_manager_lv_mknodes(lv);
|
|
else
|
|
r = dev_manager_lv_rmnodes(lv);
|
|
|
|
fs_unlock();
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Does PV use VG somewhere in its construction?
|
|
* Returns 1 on failure.
|
|
*/
|
|
int pv_uses_vg(struct physical_volume *pv,
|
|
struct volume_group *vg)
|
|
{
|
|
if (!activation())
|
|
return 0;
|
|
|
|
if (!dm_is_dm_major(MAJOR(pv->dev->dev)))
|
|
return 0;
|
|
|
|
return dev_manager_device_uses_vg(pv->dev, vg);
|
|
}
|
|
|
|
void activation_release(void)
|
|
{
|
|
dev_manager_release();
|
|
}
|
|
|
|
void activation_exit(void)
|
|
{
|
|
dev_manager_exit();
|
|
}
|
|
#endif
|