mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-22 17:35:59 +03:00
6116b1d6e3
Function tests, that given new thin pool is still unused.
624 lines
17 KiB
C
624 lines
17 KiB
C
/*
|
|
* Copyright (C) 2011-2013 Red Hat, Inc. All rights reserved.
|
|
*
|
|
* This file is part of LVM2.
|
|
*
|
|
* This copyrighted material is made available to anyone wishing to use,
|
|
* modify, copy, or redistribute it subject to the terms and conditions
|
|
* of the GNU Lesser General Public License v.2.1.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "lib.h"
|
|
#include "activate.h"
|
|
#include "locking.h"
|
|
#include "memlock.h"
|
|
#include "metadata.h"
|
|
#include "segtype.h"
|
|
#include "defaults.h"
|
|
#include "display.h"
|
|
|
|
int attach_pool_message(struct lv_segment *pool_seg, dm_thin_message_t type,
|
|
struct logical_volume *lv, uint32_t delete_id,
|
|
int no_update)
|
|
{
|
|
struct lv_thin_message *tmsg;
|
|
|
|
if (!seg_is_thin_pool(pool_seg)) {
|
|
log_error(INTERNAL_ERROR "Cannot attach message to non-pool LV %s.", pool_seg->lv->name);
|
|
return 0;
|
|
}
|
|
|
|
if (pool_has_message(pool_seg, lv, delete_id)) {
|
|
if (lv)
|
|
log_error("Message referring LV %s already queued in pool %s.",
|
|
lv->name, pool_seg->lv->name);
|
|
else
|
|
log_error("Delete for device %u already queued in pool %s.",
|
|
delete_id, pool_seg->lv->name);
|
|
return 0;
|
|
}
|
|
|
|
if (!(tmsg = dm_pool_alloc(pool_seg->lv->vg->vgmem, sizeof(*tmsg)))) {
|
|
log_error("Failed to allocate memory for message.");
|
|
return 0;
|
|
}
|
|
|
|
switch (type) {
|
|
case DM_THIN_MESSAGE_CREATE_SNAP:
|
|
case DM_THIN_MESSAGE_CREATE_THIN:
|
|
tmsg->u.lv = lv;
|
|
break;
|
|
case DM_THIN_MESSAGE_DELETE:
|
|
tmsg->u.delete_id = delete_id;
|
|
break;
|
|
default:
|
|
log_error(INTERNAL_ERROR "Unsupported message type %u.", type);
|
|
return 0;
|
|
}
|
|
|
|
tmsg->type = type;
|
|
|
|
/* If the 1st message is add in non-read-only mode, modify transaction_id */
|
|
if (!no_update && dm_list_empty(&pool_seg->thin_messages))
|
|
pool_seg->transaction_id++;
|
|
|
|
dm_list_add(&pool_seg->thin_messages, &tmsg->list);
|
|
|
|
log_debug_metadata("Added %s message.",
|
|
(type == DM_THIN_MESSAGE_CREATE_SNAP ||
|
|
type == DM_THIN_MESSAGE_CREATE_THIN) ? "create" :
|
|
(type == DM_THIN_MESSAGE_DELETE) ? "delete" : "unknown");
|
|
|
|
return 1;
|
|
}
|
|
|
|
int attach_thin_external_origin(struct lv_segment *seg,
|
|
struct logical_volume *external_lv)
|
|
{
|
|
if (seg->external_lv) {
|
|
log_error(INTERNAL_ERROR "LV \"%s\" already has external origin.",
|
|
seg->lv->name);
|
|
return 0;
|
|
}
|
|
|
|
seg->external_lv = external_lv;
|
|
|
|
if (external_lv) {
|
|
if (!add_seg_to_segs_using_this_lv(external_lv, seg))
|
|
return_0;
|
|
|
|
external_lv->external_count++;
|
|
|
|
if (external_lv->status & LVM_WRITE) {
|
|
log_verbose("Setting logical volume \"%s\" read-only.",
|
|
external_lv->name);
|
|
external_lv->status &= ~LVM_WRITE;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int detach_thin_external_origin(struct lv_segment *seg)
|
|
{
|
|
if (seg->external_lv) {
|
|
if (!lv_is_external_origin(seg->external_lv)) {
|
|
log_error(INTERNAL_ERROR "Inconsitent external origin.");
|
|
return 0;
|
|
}
|
|
|
|
if (!remove_seg_from_segs_using_this_lv(seg->external_lv, seg))
|
|
return_0;
|
|
|
|
seg->external_lv->external_count--;
|
|
seg->external_lv = NULL;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int lv_is_merging_thin_snapshot(const struct logical_volume *lv)
|
|
{
|
|
struct lv_segment *seg = first_seg(lv);
|
|
|
|
return (seg && seg->status & MERGING) ? 1 : 0;
|
|
}
|
|
|
|
/*
|
|
* Check whether pool has some message queued for LV or for device_id
|
|
* When LV is NULL and device_id is 0 it just checks for any message.
|
|
*/
|
|
int pool_has_message(const struct lv_segment *seg,
|
|
const struct logical_volume *lv, uint32_t device_id)
|
|
{
|
|
const struct lv_thin_message *tmsg;
|
|
|
|
if (!seg_is_thin_pool(seg)) {
|
|
log_error(INTERNAL_ERROR "LV %s is not pool.", seg->lv->name);
|
|
return 0;
|
|
}
|
|
|
|
if (!lv && !device_id)
|
|
return !dm_list_empty(&seg->thin_messages);
|
|
|
|
dm_list_iterate_items(tmsg, &seg->thin_messages) {
|
|
switch (tmsg->type) {
|
|
case DM_THIN_MESSAGE_CREATE_SNAP:
|
|
case DM_THIN_MESSAGE_CREATE_THIN:
|
|
if (tmsg->u.lv == lv)
|
|
return 1;
|
|
break;
|
|
case DM_THIN_MESSAGE_DELETE:
|
|
if (tmsg->u.delete_id == device_id)
|
|
return 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int pool_is_active(const struct logical_volume *lv)
|
|
{
|
|
struct lvinfo info;
|
|
const struct seg_list *sl;
|
|
|
|
if (!lv_is_thin_pool(lv)) {
|
|
log_error(INTERNAL_ERROR "pool_is_active called with non-pool LV %s.", lv->name);
|
|
return 0;
|
|
}
|
|
|
|
/* On clustered VG, query every related thin pool volume */
|
|
if (vg_is_clustered(lv->vg)) {
|
|
if (lv_is_active(lv))
|
|
return 1;
|
|
|
|
dm_list_iterate_items(sl, &lv->segs_using_this_lv)
|
|
if (lv_is_active(sl->seg->lv)) {
|
|
log_debug("Thin volume \"%s\" is active.", sl->seg->lv->name);
|
|
return 1;
|
|
}
|
|
} else if (lv_info(lv->vg->cmd, lv, 1, &info, 0, 0) && info.exists)
|
|
return 1; /* Non clustered VG - just checks for '-tpool' */
|
|
|
|
return 0;
|
|
}
|
|
|
|
int thin_pool_feature_supported(const struct logical_volume *lv, int feature)
|
|
{
|
|
static unsigned attr = 0U;
|
|
struct lv_segment *seg;
|
|
|
|
if (!lv_is_thin_pool(lv)) {
|
|
log_error(INTERNAL_ERROR "LV %s is not thin pool.", lv->name);
|
|
return 0;
|
|
}
|
|
|
|
seg = first_seg(lv);
|
|
if ((attr == 0U) && activation() && seg->segtype &&
|
|
seg->segtype->ops->target_present &&
|
|
!seg->segtype->ops->target_present(lv->vg->cmd, NULL, &attr)) {
|
|
log_error("%s: Required device-mapper target(s) not "
|
|
"detected in your kernel", seg->segtype->name);
|
|
return 0;
|
|
}
|
|
|
|
return (attr & feature) ? 1 : 0;
|
|
}
|
|
|
|
int pool_below_threshold(const struct lv_segment *pool_seg)
|
|
{
|
|
dm_percent_t percent;
|
|
int threshold = DM_PERCENT_1 *
|
|
find_config_tree_int(pool_seg->lv->vg->cmd, activation_thin_pool_autoextend_threshold_CFG,
|
|
lv_config_profile(pool_seg->lv));
|
|
|
|
/* Data */
|
|
if (!lv_thin_pool_percent(pool_seg->lv, 0, &percent))
|
|
return_0;
|
|
|
|
if (percent >= threshold)
|
|
return 0;
|
|
|
|
/* Metadata */
|
|
if (!lv_thin_pool_percent(pool_seg->lv, 1, &percent))
|
|
return_0;
|
|
|
|
if (percent >= threshold)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Validate given external origin could be used with thin pool
|
|
*/
|
|
int pool_supports_external_origin(const struct lv_segment *pool_seg, const struct logical_volume *external_lv)
|
|
{
|
|
uint32_t csize = pool_seg->chunk_size;
|
|
|
|
if ((external_lv->size < csize) || (external_lv->size % csize)) {
|
|
/* TODO: Validate with thin feature flag once, it will be supported */
|
|
log_error("Can't use \"%s/%s\" as external origin with \"%s/%s\" pool. "
|
|
"Size %s is not a multiple of pool's chunk size %s.",
|
|
external_lv->vg->name, external_lv->name,
|
|
pool_seg->lv->vg->name, pool_seg->lv->name,
|
|
display_size(external_lv->vg->cmd, external_lv->size),
|
|
display_size(external_lv->vg->cmd, csize));
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
struct logical_volume *find_pool_lv(const struct logical_volume *lv)
|
|
{
|
|
struct lv_segment *seg;
|
|
|
|
if (!(seg = first_seg(lv))) {
|
|
log_error("LV %s has no segment", lv->name);
|
|
return NULL;
|
|
}
|
|
|
|
if (!(seg = find_pool_seg(seg)))
|
|
return_NULL;
|
|
|
|
return seg->lv;
|
|
}
|
|
|
|
/*
|
|
* Find a free device_id for given thin_pool segment.
|
|
*
|
|
* \return
|
|
* Free device id, or 0 if free device_id is not found.
|
|
*
|
|
* FIXME: Improve naive search and keep the value cached
|
|
* and updated during VG lifetime (so no const for lv_segment)
|
|
*/
|
|
uint32_t get_free_pool_device_id(struct lv_segment *thin_pool_seg)
|
|
{
|
|
uint32_t max_id = 0;
|
|
struct seg_list *sl;
|
|
|
|
if (!seg_is_thin_pool(thin_pool_seg)) {
|
|
log_error(INTERNAL_ERROR
|
|
"Segment in %s is not a thin pool segment.",
|
|
thin_pool_seg->lv->name);
|
|
return 0;
|
|
}
|
|
|
|
dm_list_iterate_items(sl, &thin_pool_seg->lv->segs_using_this_lv)
|
|
if (sl->seg->device_id > max_id)
|
|
max_id = sl->seg->device_id;
|
|
|
|
if (++max_id > DM_THIN_MAX_DEVICE_ID) {
|
|
/* FIXME Find empty holes instead of aborting! */
|
|
log_error("Cannot find free device_id.");
|
|
return 0;
|
|
}
|
|
|
|
log_debug_metadata("Found free pool device_id %u.", max_id);
|
|
|
|
return max_id;
|
|
}
|
|
|
|
static int _check_pool_create(const struct logical_volume *lv)
|
|
{
|
|
const struct lv_thin_message *lmsg;
|
|
struct lvinfo info;
|
|
|
|
dm_list_iterate_items(lmsg, &first_seg(lv)->thin_messages) {
|
|
if (lmsg->type != DM_THIN_MESSAGE_CREATE_THIN)
|
|
continue;
|
|
/* When creating new thin LV, check for size would be needed */
|
|
if (!lv_info(lv->vg->cmd, lv, 1, &info, 0, 0) ||
|
|
!info.exists) {
|
|
log_error("Pool %s needs to be locally active for threshold check.",
|
|
display_lvname(lv));
|
|
return 0;
|
|
}
|
|
if (!pool_below_threshold(first_seg(lv))) {
|
|
log_error("Free space in pool %s is above threshold, new volumes are not allowed.",
|
|
display_lvname(lv));
|
|
return 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int update_pool_lv(struct logical_volume *lv, int activate)
|
|
{
|
|
int monitored;
|
|
int ret = 1;
|
|
|
|
if (!lv_is_thin_pool(lv)) {
|
|
log_error(INTERNAL_ERROR "Updated LV %s is not pool.", lv->name);
|
|
return 0;
|
|
}
|
|
|
|
if (dm_list_empty(&(first_seg(lv)->thin_messages)))
|
|
return 1; /* No messages */
|
|
|
|
if (activate) {
|
|
/* If the pool is not active, do activate deactivate */
|
|
if (!lv_is_active(lv)) {
|
|
monitored = dmeventd_monitor_mode();
|
|
init_dmeventd_monitor(DMEVENTD_MONITOR_IGNORE);
|
|
if (!activate_lv_excl(lv->vg->cmd, lv)) {
|
|
init_dmeventd_monitor(monitored);
|
|
return_0;
|
|
}
|
|
if (!lv_is_active(lv)) {
|
|
init_dmeventd_monitor(monitored);
|
|
log_error("Cannot activate thin pool %s, perhaps skipped in lvm.conf volume_list?",
|
|
display_lvname(lv));
|
|
return 0;
|
|
}
|
|
|
|
if (!(ret = _check_pool_create(lv)))
|
|
stack;
|
|
|
|
if (!deactivate_lv(lv->vg->cmd, lv)) {
|
|
init_dmeventd_monitor(monitored);
|
|
return_0;
|
|
}
|
|
init_dmeventd_monitor(monitored);
|
|
|
|
/* Unlock memory if possible */
|
|
memlock_unlock(lv->vg->cmd);
|
|
}
|
|
/*
|
|
* Resume active pool to send thin messages.
|
|
* origin_only is used to skip check for resumed state
|
|
*/
|
|
else if (!resume_lv_origin(lv->vg->cmd, lv)) {
|
|
log_error("Failed to resume %s.", lv->name);
|
|
return 0;
|
|
} else if (!(ret = _check_pool_create(lv)))
|
|
stack;
|
|
}
|
|
|
|
dm_list_init(&(first_seg(lv)->thin_messages));
|
|
|
|
if (!vg_write(lv->vg) || !vg_commit(lv->vg))
|
|
return_0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
int update_thin_pool_params(const struct segment_type *segtype,
|
|
struct volume_group *vg,
|
|
unsigned attr, int passed_args,
|
|
uint32_t pool_data_extents,
|
|
uint32_t *pool_metadata_extents,
|
|
int *chunk_size_calc_method, uint32_t *chunk_size,
|
|
thin_discards_t *discards, int *zero)
|
|
{
|
|
struct cmd_context *cmd = vg->cmd;
|
|
struct profile *profile = vg->profile;
|
|
uint32_t extent_size = vg->extent_size;
|
|
uint64_t pool_metadata_size = (uint64_t) *pool_metadata_extents * extent_size;
|
|
size_t estimate_chunk_size;
|
|
const char *str;
|
|
|
|
if (!(passed_args & PASS_ARG_CHUNK_SIZE)) {
|
|
if (!(*chunk_size = find_config_tree_int(cmd, allocation_thin_pool_chunk_size_CFG, profile) * 2)) {
|
|
if (!(str = find_config_tree_str(cmd, allocation_thin_pool_chunk_size_policy_CFG, profile))) {
|
|
log_error(INTERNAL_ERROR "Could not find configuration.");
|
|
return 0;
|
|
}
|
|
if (!strcasecmp(str, "generic"))
|
|
*chunk_size_calc_method = THIN_CHUNK_SIZE_CALC_METHOD_GENERIC;
|
|
else if (!strcasecmp(str, "performance"))
|
|
*chunk_size_calc_method = THIN_CHUNK_SIZE_CALC_METHOD_PERFORMANCE;
|
|
else {
|
|
log_error("Thin pool chunk size calculation policy \"%s\" is unrecognised.", str);
|
|
return 0;
|
|
}
|
|
if (!(*chunk_size = get_default_allocation_thin_pool_chunk_size_CFG(cmd, profile)))
|
|
return_0;
|
|
}
|
|
}
|
|
|
|
if (!validate_pool_chunk_size(cmd, segtype, *chunk_size))
|
|
return_0;
|
|
|
|
if (!(passed_args & PASS_ARG_DISCARDS)) {
|
|
if (!(str = find_config_tree_str(cmd, allocation_thin_pool_discards_CFG, profile))) {
|
|
log_error(INTERNAL_ERROR "Could not find configuration.");
|
|
return 0;
|
|
}
|
|
if (!get_pool_discards(str, discards))
|
|
return_0;
|
|
}
|
|
|
|
if (!(passed_args & PASS_ARG_ZERO))
|
|
*zero = find_config_tree_bool(cmd, allocation_thin_pool_zero_CFG, profile);
|
|
|
|
if (!(attr & THIN_FEATURE_BLOCK_SIZE) &&
|
|
(*chunk_size & (*chunk_size - 1))) {
|
|
log_error("Chunk size must be a power of 2 for this thin target version.");
|
|
return 0;
|
|
}
|
|
|
|
if (!pool_metadata_size) {
|
|
/* Defaults to nr_pool_blocks * 64b converted to size in sectors */
|
|
pool_metadata_size = (uint64_t) pool_data_extents * extent_size /
|
|
(*chunk_size * (SECTOR_SIZE / UINT64_C(64)));
|
|
/* Check if we could eventually use bigger chunk size */
|
|
if (!(passed_args & PASS_ARG_CHUNK_SIZE)) {
|
|
while ((pool_metadata_size >
|
|
(DEFAULT_THIN_POOL_OPTIMAL_SIZE / SECTOR_SIZE)) &&
|
|
(*chunk_size < DM_THIN_MAX_DATA_BLOCK_SIZE)) {
|
|
*chunk_size <<= 1;
|
|
pool_metadata_size >>= 1;
|
|
}
|
|
log_verbose("Setting chunk size to %s.",
|
|
display_size(cmd, *chunk_size));
|
|
} else if (pool_metadata_size > (DEFAULT_THIN_POOL_MAX_METADATA_SIZE * 2)) {
|
|
/* Suggest bigger chunk size */
|
|
estimate_chunk_size = (uint64_t) pool_data_extents * extent_size /
|
|
(DEFAULT_THIN_POOL_MAX_METADATA_SIZE * 2 * (SECTOR_SIZE / UINT64_C(64)));
|
|
log_warn("WARNING: Chunk size is too small for pool, suggested minimum is %s.",
|
|
display_size(cmd, UINT64_C(1) << (ffs(estimate_chunk_size) + 1)));
|
|
}
|
|
|
|
/* Round up to extent size silently */
|
|
if (pool_metadata_size % extent_size)
|
|
pool_metadata_size += extent_size - pool_metadata_size % extent_size;
|
|
} else {
|
|
estimate_chunk_size = (uint64_t) pool_data_extents * extent_size /
|
|
(pool_metadata_size * (SECTOR_SIZE / UINT64_C(64)));
|
|
if (estimate_chunk_size < DM_THIN_MIN_DATA_BLOCK_SIZE)
|
|
estimate_chunk_size = DM_THIN_MIN_DATA_BLOCK_SIZE;
|
|
else if (estimate_chunk_size > DM_THIN_MAX_DATA_BLOCK_SIZE)
|
|
estimate_chunk_size = DM_THIN_MAX_DATA_BLOCK_SIZE;
|
|
|
|
/* Check to eventually use bigger chunk size */
|
|
if (!(passed_args & PASS_ARG_CHUNK_SIZE)) {
|
|
*chunk_size = estimate_chunk_size;
|
|
log_verbose("Setting chunk size %s.", display_size(cmd, *chunk_size));
|
|
} else if (*chunk_size < estimate_chunk_size) {
|
|
/* Suggest bigger chunk size */
|
|
log_warn("WARNING: Chunk size is smaller then suggested minimum size %s.",
|
|
display_size(cmd, estimate_chunk_size));
|
|
}
|
|
}
|
|
|
|
if (pool_metadata_size > (2 * DEFAULT_THIN_POOL_MAX_METADATA_SIZE)) {
|
|
pool_metadata_size = 2 * DEFAULT_THIN_POOL_MAX_METADATA_SIZE;
|
|
if (passed_args & PASS_ARG_POOL_METADATA_SIZE)
|
|
log_warn("WARNING: Maximum supported pool metadata size is %s.",
|
|
display_size(cmd, pool_metadata_size));
|
|
} else if (pool_metadata_size < (2 * DEFAULT_THIN_POOL_MIN_METADATA_SIZE)) {
|
|
pool_metadata_size = 2 * DEFAULT_THIN_POOL_MIN_METADATA_SIZE;
|
|
if (passed_args & PASS_ARG_POOL_METADATA_SIZE)
|
|
log_warn("WARNING: Minimum supported pool metadata size is %s.",
|
|
display_size(cmd, pool_metadata_size));
|
|
}
|
|
|
|
if (!(*pool_metadata_extents =
|
|
extents_from_size(vg->cmd, pool_metadata_size, extent_size)))
|
|
return_0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int get_pool_discards(const char *str, thin_discards_t *discards)
|
|
{
|
|
if (!strcasecmp(str, "passdown"))
|
|
*discards = THIN_DISCARDS_PASSDOWN;
|
|
else if (!strcasecmp(str, "nopassdown"))
|
|
*discards = THIN_DISCARDS_NO_PASSDOWN;
|
|
else if (!strcasecmp(str, "ignore"))
|
|
*discards = THIN_DISCARDS_IGNORE;
|
|
else {
|
|
log_error("Thin pool discards type \"%s\" is unknown.", str);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
const char *get_pool_discards_name(thin_discards_t discards)
|
|
{
|
|
switch (discards) {
|
|
case THIN_DISCARDS_PASSDOWN:
|
|
return "passdown";
|
|
case THIN_DISCARDS_NO_PASSDOWN:
|
|
return "nopassdown";
|
|
case THIN_DISCARDS_IGNORE:
|
|
return "ignore";
|
|
}
|
|
|
|
log_error(INTERNAL_ERROR "Unknown discards type encountered.");
|
|
|
|
return "unknown";
|
|
}
|
|
|
|
int lv_is_thin_origin(const struct logical_volume *lv, unsigned int *snap_count)
|
|
{
|
|
struct seg_list *segl;
|
|
int r = 0;
|
|
|
|
if (snap_count)
|
|
*snap_count = 0;
|
|
|
|
if (!lv_is_thin_volume(lv) ||
|
|
dm_list_empty(&lv->segs_using_this_lv))
|
|
return 0;
|
|
|
|
dm_list_iterate_items(segl, &lv->segs_using_this_lv) {
|
|
if (segl->seg->origin == lv) {
|
|
r = 1;
|
|
if (snap_count)
|
|
(*snap_count)++;
|
|
else
|
|
/* not interested in number of snapshots */
|
|
break;
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Explict check of new thin pool for usability
|
|
*
|
|
* Allow use of thin pools by external apps. When lvm2 metadata has
|
|
* transaction_id == 0 for a new thin pool, it will explicitely validate
|
|
* the pool is still unused.
|
|
*
|
|
* To prevent lvm2 to create thin volumes in externally used thin pools
|
|
* simply increment its transaction_id.
|
|
*/
|
|
int check_new_thin_pool(const struct logical_volume *pool_lv)
|
|
{
|
|
struct cmd_context *cmd = pool_lv->vg->cmd;
|
|
uint64_t transaction_id;
|
|
|
|
/* For transaction_id check LOCAL activation is required */
|
|
if (!activate_lv_excl_local(cmd, pool_lv)) {
|
|
log_error("Aborting. Failed to locally activate thin pool %s.",
|
|
display_lvname(pool_lv));
|
|
return 0;
|
|
}
|
|
|
|
/* With volume lists, check pool really is locally active */
|
|
if (!lv_thin_pool_transaction_id(pool_lv, &transaction_id)) {
|
|
log_error("Cannot read thin pool %s transaction id locally, perhaps skipped in lvm.conf volume_list?",
|
|
display_lvname(pool_lv));
|
|
return 0;
|
|
}
|
|
|
|
/* Require pool to have same transaction_id as new */
|
|
if (first_seg(pool_lv)->transaction_id != transaction_id) {
|
|
log_error("Cannot use thin pool %s with transaction id "
|
|
"%" PRIu64 " for thin volumes. "
|
|
"Expected transaction id %" PRIu64 ".",
|
|
display_lvname(pool_lv), transaction_id,
|
|
first_seg(pool_lv)->transaction_id);
|
|
return 0;
|
|
}
|
|
|
|
log_verbose("Deactivating public thin pool %s",
|
|
display_lvname(pool_lv));
|
|
|
|
/* Prevent any 'race' with in-use thin pool and always deactivate */
|
|
if (!deactivate_lv(pool_lv->vg->cmd, pool_lv)) {
|
|
log_error("Aborting. Could not deactivate thin pool %s.",
|
|
display_lvname(pool_lv));
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|