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mirror of git://sourceware.org/git/lvm2.git synced 2025-03-10 16:58:47 +03:00

lvconvert: use command defs for repair and replace

Shift --repair and --replace to the new system based on
command defs.
This commit is contained in:
David Teigland 2016-11-04 14:15:20 -05:00
parent 17a255b8d5
commit ea68bb038e
3 changed files with 474 additions and 94 deletions

View File

@ -1364,7 +1364,8 @@ static int _lvconvert_mirrors_aux(struct cmd_context *cmd,
struct lvconvert_params *lp,
struct dm_list *operable_pvs,
uint32_t new_mimage_count,
uint32_t new_log_count)
uint32_t new_log_count,
struct dm_list *pvh)
{
uint32_t region_size;
struct lv_segment *seg = first_seg(lv);
@ -1384,7 +1385,7 @@ static int _lvconvert_mirrors_aux(struct cmd_context *cmd,
vg_is_clustered(lv->vg));
if (!operable_pvs)
operable_pvs = lp->pvh;
operable_pvs = pvh;
/*
* Up-convert from linear to mirror
@ -1393,7 +1394,7 @@ static int _lvconvert_mirrors_aux(struct cmd_context *cmd,
/* FIXME Share code with lvcreate */
/*
* FIXME should we give not only lp->pvh, but also all PVs
* FIXME should we give not only pvh, but also all PVs
* currently taken by the mirror? Would make more sense from
* user perspective.
*/
@ -1402,7 +1403,7 @@ static int _lvconvert_mirrors_aux(struct cmd_context *cmd,
lp->alloc, MIRROR_BY_LV))
return_0;
if (lp->wait_completion)
if (!arg_is_set(cmd, background_ARG))
lp->need_polling = 1;
goto out;
@ -1579,7 +1580,8 @@ int mirror_remove_missing(struct cmd_context *cmd,
*/
static int _lvconvert_mirrors_repair(struct cmd_context *cmd,
struct logical_volume *lv,
struct lvconvert_params *lp)
struct lvconvert_params *lp,
struct dm_list *pvh)
{
int failed_logs;
int failed_mimages;
@ -1590,7 +1592,6 @@ static int _lvconvert_mirrors_repair(struct cmd_context *cmd,
uint32_t original_mimages = lv_mirror_count(lv);
uint32_t original_logs = _get_log_count(lv);
cmd->handles_missing_pvs = 1;
cmd->partial_activation = 1;
lp->need_polling = 0;
@ -1646,7 +1647,7 @@ static int _lvconvert_mirrors_repair(struct cmd_context *cmd,
while (replace_mimages || replace_logs) {
log_warn("Trying to up-convert to %d images, %d logs.", lp->mirrors, log_count);
if (_lvconvert_mirrors_aux(cmd, lv, lp, NULL,
lp->mirrors, log_count))
lp->mirrors, log_count, pvh))
break;
if (lp->mirrors > 2)
--lp->mirrors;
@ -1766,11 +1767,8 @@ static int _lvconvert_mirrors(struct cmd_context *cmd,
(old_log_count == new_log_count) && !lp->repair)
return 1;
if (lp->repair)
return _lvconvert_mirrors_repair(cmd, lv, lp);
if (!_lvconvert_mirrors_aux(cmd, lv, lp, NULL,
new_mimage_count, new_log_count))
new_mimage_count, new_log_count, lp->pvh))
return 0;
if (!lp->need_polling)
@ -1801,33 +1799,6 @@ static int _is_valid_raid_conversion(const struct segment_type *from_segtype,
return 1;
}
static void _lvconvert_raid_repair_ask(struct cmd_context *cmd,
struct lvconvert_params *lp,
int *replace_dev)
{
const char *dev_policy;
*replace_dev = 1;
if (arg_is_set(cmd, usepolicies_ARG)) {
dev_policy = find_config_tree_str(cmd, activation_raid_fault_policy_CFG, NULL);
if (!strcmp(dev_policy, "allocate") ||
!strcmp(dev_policy, "replace"))
return;
/* else if (!strcmp(dev_policy, "anything_else")) -- no replace */
*replace_dev = 0;
return;
}
if (!lp->yes &&
yes_no_prompt("Attempt to replace failed RAID images "
"(requires full device resync)? [y/n]: ") == 'n') {
*replace_dev = 0;
}
}
static int _lvconvert_raid(struct logical_volume *lv, struct lvconvert_params *lp)
{
int replace = 0, image_count = 0;
@ -1963,49 +1934,6 @@ static int _lvconvert_raid(struct logical_volume *lv, struct lvconvert_params *l
return 1;
}
if (lp->replace)
return lv_raid_replace(lv, lp->replace_pvh, lp->pvh);
if (lp->repair) {
if (!lv_is_active_exclusive_locally(lv_lock_holder(lv))) {
log_error("%s must be active %sto perform this operation.",
display_lvname(lv),
vg_is_clustered(lv->vg) ?
"exclusive locally " : "");
return 0;
}
if (seg_is_striped(seg)) {
log_error("Cannot repair LV %s of type raid0.",
display_lvname(lv));
return 0;
}
_lvconvert_raid_repair_ask(cmd, lp, &replace);
if (replace) {
if (!(failed_pvs = _failed_pv_list(lv->vg)))
return_0;
if (!lv_raid_replace(lv, failed_pvs, lp->pvh)) {
log_error("Failed to replace faulty devices in %s.",
display_lvname(lv));
return 0;
}
log_print_unless_silent("Faulty devices in %s successfully replaced.",
display_lvname(lv));
return 1;
}
/* "warn" if policy not set to replace */
if (arg_is_set(cmd, usepolicies_ARG))
log_warn("Use 'lvconvert --repair %s' to replace "
"failed device.", display_lvname(lv));
return 1;
}
try_new_takeover_or_reshape:
/* FIXME This needs changing globally. */
@ -2509,7 +2437,7 @@ out:
static int _lvconvert_thin_pool_repair(struct cmd_context *cmd,
struct logical_volume *pool_lv,
struct lvconvert_params *lp)
struct dm_list *pvh, int poolmetadataspare)
{
const char *dmdir = dm_dir();
const char *thin_dump =
@ -2538,7 +2466,7 @@ static int _lvconvert_thin_pool_repair(struct cmd_context *cmd,
pmslv = pool_lv->vg->pool_metadata_spare_lv;
/* Check we have pool metadata spare LV */
if (!handle_pool_metadata_spare(pool_lv->vg, 0, lp->pvh, 1))
if (!handle_pool_metadata_spare(pool_lv->vg, 0, pvh, 1))
return_0;
if (pmslv != pool_lv->vg->pool_metadata_spare_lv) {
@ -2663,8 +2591,8 @@ deactivate_pmslv:
}
/* Try to allocate new pool metadata spare LV */
if (!handle_pool_metadata_spare(pool_lv->vg, 0, lp->pvh,
lp->poolmetadataspare))
if (!handle_pool_metadata_spare(pool_lv->vg, 0, pvh,
poolmetadataspare))
stack;
if (dm_snprintf(meta_path, sizeof(meta_path), "%s_meta%%d", pool_lv->name) < 0) {
@ -3543,7 +3471,8 @@ static int _convert_thin_pool_uncache(struct cmd_context *cmd, struct logical_vo
static int _convert_thin_pool_repair(struct cmd_context *cmd, struct logical_volume *lv,
struct lvconvert_params *lp)
{
return _lvconvert_thin_pool_repair(cmd, lv, lp);
/* return _lvconvert_thin_pool_repair(cmd, lv, lp); */
return 0;
}
/*
@ -3731,7 +3660,7 @@ static int _convert_mirror_repair(struct cmd_context *cmd, struct logical_volume
struct dm_list *failed_pvs;
int ret;
ret = _lvconvert_mirrors_repair(cmd, lv, lp);
ret = _lvconvert_mirrors_repair(cmd, lv, lp, lp->pvh);
if (ret && arg_is_set(cmd, usepolicies_ARG)) {
if ((failed_pvs = _failed_pv_list(lv->vg)))
@ -4711,3 +4640,305 @@ out:
return ret;
}
/*
* Below is code that has transitioned to using command defs.
* ----------------------------------------------------------
*
* This code does not use read_params (or any other param reading
* functions associated with it), or the lp struct. Those have
* been primary vehicles for entangling all the lvconvert operations,
* so avoiding them is important for untangling. They were also
* heavily used for trying to figure out what the lvconvert operation
* was meant to be doing, and that is no longer needed since the
* command def provides it.
*
* All input data is already available from cmd->arg_values and
* cmd->position_argv (the --option args in the former, the position
* args in the later.) There is no need to copy these values into
* another redundant struct of input values which just obfuscates.
*
* The new lvconvert_result struct, passed via custom_handle, is
* used for *returning* data from processing, not for passing data
* into processing.
*/
/*
* Data/results accumulated during processing.
*/
struct lvconvert_result {
int need_polling;
struct dm_list poll_idls;
};
static int _lvconvert_repair_pvs_mirror(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle,
struct dm_list *use_pvh)
{
struct lvconvert_result *lr = (struct lvconvert_result *) handle->custom_handle;
struct lvconvert_params lp = { 0 };
struct convert_poll_id_list *idl;
struct lvinfo info;
int ret;
/*
* FIXME: temporary use of lp because _lvconvert_mirrors_repair()
* and _aux() still use lp fields everywhere.
* Migrate them away from using lp (for the most part just use
* local variables, and check arg_values directly).
*/
/*
* Fill in any lp fields here that this fn expects to be set before
* it's called. It's hard to tell by reading old code, but it seems
* that repair takes nothing like stripes/stripsize.
*/
lp.alloc = (alloc_policy_t) arg_uint_value(cmd, alloc_ARG, ALLOC_INHERIT);
ret = _lvconvert_mirrors_repair(cmd, lv, &lp, use_pvh);
if (lp.need_polling) {
if (!lv_info(cmd, lp.lv_to_poll, 0, &info, 0, 0) || !info.exists)
log_print_unless_silent("Conversion starts after activation.");
else {
if (!(idl = _convert_poll_id_list_create(cmd, lp.lv_to_poll)))
return_ECMD_FAILED;
dm_list_add(&lr->poll_idls, &idl->list);
}
lr->need_polling = 1;
}
return ret;
}
static void _lvconvert_repair_pvs_raid_ask(struct cmd_context *cmd, int *do_it)
{
const char *dev_policy;
*do_it = 1;
if (arg_is_set(cmd, usepolicies_ARG)) {
dev_policy = find_config_tree_str(cmd, activation_raid_fault_policy_CFG, NULL);
if (!strcmp(dev_policy, "allocate") ||
!strcmp(dev_policy, "replace"))
return;
/* else if (!strcmp(dev_policy, "anything_else")) -- no replace */
*do_it = 0;
return;
}
if (!arg_count(cmd, yes_ARG) &&
yes_no_prompt("Attempt to replace failed RAID images "
"(requires full device resync)? [y/n]: ") == 'n') {
*do_it = 0;
}
}
static int _lvconvert_repair_pvs_raid(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle,
struct dm_list *use_pvh)
{
struct dm_list *failed_pvs;
int do_it;
if (!lv_is_active_exclusive_locally(lv_lock_holder(lv))) {
log_error("%s must be active %sto perform this operation.",
display_lvname(lv),
vg_is_clustered(lv->vg) ?
"exclusive locally " : "");
return 0;
}
_lvconvert_repair_pvs_raid_ask(cmd, &do_it);
if (do_it) {
if (!(failed_pvs = _failed_pv_list(lv->vg)))
return_0;
if (!lv_raid_replace(lv, failed_pvs, use_pvh)) {
log_error("Failed to replace faulty devices in %s.",
display_lvname(lv));
return 0;
}
log_print_unless_silent("Faulty devices in %s successfully replaced.",
display_lvname(lv));
return 1;
}
/* "warn" if policy not set to replace */
if (arg_is_set(cmd, usepolicies_ARG))
log_warn("Use 'lvconvert --repair %s' to replace "
"failed device.", display_lvname(lv));
return 1;
}
static int _lvconvert_repair_pvs(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle)
{
struct dm_list *failed_pvs;
struct dm_list *use_pvh;
int ret;
/* First pos arg is required LV, remaining are optional PVs. */
if (cmd->position_argc > 1) {
if (!(use_pvh = create_pv_list(cmd->mem, lv->vg, cmd->position_argc, cmd->position_argv, 0)))
return_ECMD_FAILED;
} else
use_pvh = &lv->vg->pvs;
if (lv_is_raid(lv))
ret = _lvconvert_repair_pvs_raid(cmd, lv, handle, use_pvh);
else if (lv_is_mirror(lv))
ret = _lvconvert_repair_pvs_mirror(cmd, lv, handle, use_pvh);
else
ret = 0;
if (ret && arg_is_set(cmd, usepolicies_ARG)) {
if ((failed_pvs = _failed_pv_list(lv->vg)))
_remove_missing_empty_pv(lv->vg, failed_pvs);
}
return ret ? ECMD_PROCESSED : ECMD_FAILED;
}
static int _lvconvert_repair_thinpool(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle)
{
int poolmetadataspare = arg_int_value(cmd, poolmetadataspare_ARG, DEFAULT_POOL_METADATA_SPARE);
struct dm_list *use_pvh;
/* First pos arg is required LV, remaining are optional PVs. */
if (cmd->position_argc > 1) {
if (!(use_pvh = create_pv_list(cmd->mem, lv->vg, cmd->position_argc, cmd->position_argv, 0)))
return_ECMD_FAILED;
} else
use_pvh = &lv->vg->pvs;
return _lvconvert_thin_pool_repair(cmd, lv, use_pvh, poolmetadataspare);
}
static int _lvconvert_repair_pvs_or_thinpool(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle)
{
if (lv_is_thin_pool(lv))
return _lvconvert_repair_thinpool(cmd, lv, handle);
else if (lv_is_raid(lv) || lv_is_mirror(lv))
return _lvconvert_repair_pvs(cmd, lv, handle);
else
return_ECMD_FAILED;
}
/*
* FIXME: add option --repair-pvs to call _lvconvert_repair_pvs() directly,
* and option --repair-thinpool to call _lvconvert_repair_thinpool().
*/
int lvconvert_repair_pvs_or_thinpool_fn(struct cmd_context *cmd, int argc, char **argv)
{
struct processing_handle *handle;
struct lvconvert_result lr = { 0 };
struct convert_poll_id_list *idl;
int saved_ignore_suspended_devices;
int ret, poll_ret;
dm_list_init(&lr.poll_idls);
if (!(handle = init_processing_handle(cmd, NULL))) {
log_error("Failed to initialize processing handle.");
return ECMD_FAILED;
}
handle->custom_handle = &lr;
saved_ignore_suspended_devices = ignore_suspended_devices();
init_ignore_suspended_devices(1);
cmd->handles_missing_pvs = 1;
ret = process_each_lv(cmd, 1, cmd->position_argv, NULL, NULL,
READ_FOR_UPDATE, handle,
&_lvconvert_repair_pvs_or_thinpool);
init_ignore_suspended_devices(saved_ignore_suspended_devices);
if (lr.need_polling) {
dm_list_iterate_items(idl, &lr.poll_idls)
poll_ret = _lvconvert_poll_by_id(cmd, idl->id,
arg_is_set(cmd, background_ARG), 0, 0);
if (poll_ret > ret)
ret = poll_ret;
}
destroy_processing_handle(cmd, handle);
return ret;
}
static int _lvconvert_replace_pv(struct cmd_context *cmd, struct logical_volume *lv,
struct processing_handle *handle)
{
struct arg_value_group_list *group;
struct dm_list *use_pvh;
struct dm_list *replace_pvh;
char **replace_pvs;
const char *tmp_str;
int replace_pv_count;
int i;
/* First pos arg is required LV, remaining are optional PVs. */
if (cmd->position_argc > 1) {
if (!(use_pvh = create_pv_list(cmd->mem, lv->vg, cmd->position_argc, cmd->position_argv, 0)))
return_ECMD_FAILED;
} else
use_pvh = &lv->vg->pvs;
if (!(replace_pv_count = arg_count(cmd, replace_ARG)))
return_ECMD_FAILED;
if (!(replace_pvs = dm_pool_alloc(cmd->mem, sizeof(char *) * replace_pv_count)))
return_ECMD_FAILED;
i = 0;
dm_list_iterate_items(group, &cmd->arg_value_groups) {
if (!grouped_arg_is_set(group->arg_values, replace_ARG))
continue;
if (!(tmp_str = grouped_arg_str_value(group->arg_values, replace_ARG, NULL))) {
log_error("Failed to get '--replace' argument");
return_ECMD_FAILED;
}
if (!(replace_pvs[i++] = dm_pool_strdup(cmd->mem, tmp_str)))
return_ECMD_FAILED;
}
if (!(replace_pvh = create_pv_list(cmd->mem, lv->vg, replace_pv_count, replace_pvs, 0)))
return_ECMD_FAILED;
return lv_raid_replace(lv, replace_pvh, use_pvh);
}
int lvconvert_replace_pv_fn(struct cmd_context *cmd, int argc, char **argv)
{
struct processing_handle *handle;
struct lvconvert_result lr = { 0 };
int ret;
if (!(handle = init_processing_handle(cmd, NULL))) {
log_error("Failed to initialize processing handle.");
return ECMD_FAILED;
}
handle->custom_handle = &lr;
ret = process_each_lv(cmd, 1, cmd->position_argv, NULL, NULL,
READ_FOR_UPDATE, handle,
&_lvconvert_replace_pv);
destroy_processing_handle(cmd, handle);
return ret;
}

View File

@ -85,6 +85,10 @@ struct command_name command_names[MAX_COMMAND_NAMES] = {
static struct command commands[COMMAND_COUNT];
static struct cmdline_context _cmdline;
int lvconvert_replace_pv_fn(struct cmd_context *cmd, int argc, char **argv);
int lvconvert_repair_pvs_or_thinpool_fn(struct cmd_context *cmd, int argc, char **argv);
/*
* Table of command line functions
*
@ -93,19 +97,24 @@ static struct cmdline_context _cmdline;
* For now, any command id not included here uses the old command fn.
*/
struct command_function command_functions[COMMAND_ID_COUNT] = {
{ lvmconfig_general_CMD, lvmconfig },
{ lvmconfig_general_CMD, lvmconfig },
/* lvconvert: utilities related to snapshots and repair */
{ lvconvert_repair_pvs_or_thinpool_CMD, lvconvert_repair_pvs_or_thinpool_fn },
{ lvconvert_replace_pv_CMD, lvconvert_replace_pv_fn },
};
#if 0
/* all raid-related type conversions */
{ lvconvert_raid_types_CMD, lvconvert_raid_types_fn },
/* raid-related utilities (move into lvconvert_raid_types?) */
/* lvconvert: raid-related utilities (move into lvconvert_raid_types?) */
{ lvconvert_split_mirror_images_CMD, lvconvert_split_mirror_images_fn },
{ lvconvert_change_mirrorlog_CMD, lvconvert_change_mirrorlog_fn },
/* utilities for creating/maintaining thin and cache objects. */
/* lvconvert: utilities for creating/maintaining thin and cache objects. */
{ lvconvert_to_thin_with_external_CMD, lvconvert_to_thin_with_external_fn },
{ lvconvert_to_cache_vol_CMD, lvconvert_to_cache_vol_fn },
@ -115,12 +124,10 @@ struct command_function command_functions[COMMAND_ID_COUNT] = {
{ lvconvert_split_and_delete_cachepool_CMD, lvconvert_split_and_delete_cachepool_fn },
{ lvconvert_swap_pool_metadata_CMD, lvconvert_swap_pool_metadata_fn },
/* utilities related to snapshots and repair. */
/* lvconvert: utilities related to snapshots and repair. */
{ lvconvert_merge_CMD, lvconvert_merge_fn },
{ lvconvert_combine_split_snapshot_CMD, lvconvert_combine_split_snapshot_fn },
{ lvconvert_repair_pvs_or_thinpool_CMD, lvconvert_repair_pvs_or_thinpool_fn },
{ lvconvert_replace_pv_CMD, lvconvert_replace_pv_fn },
{ lvconvert_split_cow_snapshot_CMD, lvconvert_split_cow_snapshot_fn },
{ lvconvert_poll_start_CMD, lvconvert_poll_start_fn },

View File

@ -2674,7 +2674,8 @@ out:
*/
static int _get_arg_lvnames(struct cmd_context *cmd,
int argc, char **argv,
const char *one_vgname, const char *one_lvname,
const char *one_vgname,
const char *one_lvname,
struct dm_list *arg_vgnames,
struct dm_list *arg_lvnames,
struct dm_list *arg_tags)
@ -2795,6 +2796,134 @@ static int _get_arg_lvnames(struct cmd_context *cmd,
return ret_max;
}
/*
* Some commands will look in specific options to:
*
* - find the intended LV name if only the VG name was found
* in the position arg or env.
*
* command --foo=lvname VG
* . add VG/lvname to arg_lvnames
*
* - find both the intended VG name and LV name if nothing
* was found in the position arg or env.
*
* command --foo=vgname/lvname
* . add vgname to arg_vgnames
* . add vgname/lvname to arg_lvnames
*
* If a VG name was found in the position arg or from env,
* and options are searched for an LV name, then if VG name
* is repeated in the option name, verify it matches the VG
* name found previously.
*
* command --foo=vgname/lvname VG
* . verify vgname matches VG
* . add vgname/lvname to arg_lvnames
*
*
* In some cases, lvconvert wants to get the intended vg/lv
* from --thinpool, --cachepool.
*
*
* N.B.
* lvconvert --snapshot is a special case where the first
* positional arg is saved away and skipped, and the second
* positional arg is the LV that is passed to process_each.
*/
#if 0
static int _get_arg_lvnames_from_options(struct cmd_context *cmd,
struct dm_list *arg_vgnames,
struct dm_list *arg_lvnames)
{
struct str_list *sl;
const char *arg_name = NULL;;
const char *pos_vgname = NULL;
const char *pos_lvname = NULL;
const char *opt_lvname = NULL;
const char *opt_vgname = NULL;
const char *use_vgname = NULL;
char *tmp_name;
char *split;
char *vglv;
size_t vglv_sz;
int i;
dm_list_iterate_items(sl, arg_vgnames) {
pos_vgname = sl->str;
break;
}
dm_list_iterate_items(sl, arg_lvnames) {
if ((pos_lvname = strchr(sl->str, '/')))
pos_lvname++;
break;
}
if (arg_is_set(cmd, thinpool_ARG))
arg_name = arg_str_value(cmd, thinpool_ARG, NULL);
else if (arg_is_set(cmd, cachepool_ARG))
arg_name = arg_str_value(cmd, cachepool_ARG, NULL);
if (arg_name) {
if ((split = strchr(arg_name, '/'))) {
/* combined VG/LV */
if (!(tmp_name = dm_pool_strdup(cmd->mem, arg_name))) {
log_error("string alloc failed.");
return ECMD_FAILED;
}
if (!(split = strchr(tmp_name, '/')))
return ECMD_FAILED;
opt_vgname = tmp_name;
opt_lvname = split + 1;
*split = '\0';
} else {
/* only LV */
opt_lvname = arg_name;
}
if (pos_vgname && opt_vgname && strcmp(pos_vgname, opt_vgname)) {
log_error("VG name mismatch from position arg (%s) and option arg (%s).",
pos_vgname, opt_vgname);
return ECMD_FAILED;
}
if (!pos_vgname && opt_vgname) {
if (!str_list_add(cmd->mem, arg_vgnames,
dm_pool_strdup(cmd->mem, opt_vgname))) {
log_error("strlist allocation failed.");
return ECMD_FAILED;
}
use_vgname = opt_vgname;
} else {
use_vgname = pos_vgname;
}
if (use_vgname && !pos_lvname && opt_lvname) {
vglv_sz = strlen(use_vgname) + strlen(opt_lvname) + 2;
if (!(vglv = dm_pool_alloc(cmd->mem, vglv_sz)) ||
dm_snprintf(vglv, vglv_sz, "%s/%s", use_vgname, opt_lvname) < 0) {
log_error("vg/lv string alloc failed.");
return ECMD_FAILED;
}
if (!str_list_add(cmd->mem, arg_lvnames, vglv)) {
log_error("strlist allocation failed.");
return ECMD_FAILED;
}
}
}
return ECMD_PROCESSED;
}
#endif
static int _process_lv_vgnameid_list(struct cmd_context *cmd, uint32_t read_flags,
struct dm_list *vgnameids_to_process,
struct dm_list *arg_vgnames,
@ -2957,6 +3086,19 @@ int process_each_lv(struct cmd_context *cmd,
goto_out;
}
#if 0
/*
* Some commands will search for VG/LV position args from option
* values, e.g. lvconvert.
*/
if (cmd->command->flags & ALLOW_VGLV_ARG_FROM_OPTIONS) {
if ((ret = _get_arg_lvnames_from_options(cmd, argc, argv, &arg_vgnames, &arg_lvnames) != ECMD_PROCESSED)) {
ret_max = ret;
goto_out;
}
}
#endif
if (!handle && !(handle = init_processing_handle(cmd, NULL))) {
ret_max = ECMD_FAILED;
goto_out;