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lvm: change build_dm_uuid API

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Pass directly 'lv' into this build routine,
so we can eventually add more private UUID suffixes.
This commit is contained in:
Zdenek Kabelac 2014-03-11 17:13:47 +01:00
parent 4d64e91efd
commit 6a0d97a65c
8 changed files with 48 additions and 43 deletions
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1
WHATS_NEW
View File

@ -1,5 +1,6 @@
Version 2.02.106 - Version 2.02.106 -
==================================== ====================================
Update API for internal function build_dm_uuid().
Do not try to check empty pool with scheduled messages. Do not try to check empty pool with scheduled messages.
Fix return value in pool_has_message() when quering for any message. Fix return value in pool_has_message() when quering for any message.
Cleanup all client resources on clvmd exit. Cleanup all client resources on clvmd exit.

2
lib/activate/activate.c
View File

@ -1546,7 +1546,7 @@ static char *_build_target_uuid(struct cmd_context *cmd, struct logical_volume *
else else
layer = NULL; layer = NULL;
return build_dm_uuid(cmd->mem, lv->lvid.s, layer); return build_dm_uuid(cmd->mem, lv, layer);
} }
int target_registered_with_dmeventd(struct cmd_context *cmd, const char *dso, int target_registered_with_dmeventd(struct cmd_context *cmd, const char *dso,

62
lib/activate/dev_manager.c
View File

@ -505,7 +505,7 @@ int dev_manager_info(struct dm_pool *mem, const struct logical_volume *lv,
return 0; return 0;
} }
if (!(dlid = build_dm_uuid(mem, lv->lvid.s, layer))) { if (!(dlid = build_dm_uuid(mem, lv, layer))) {
log_error("dlid build failed for %s", name); log_error("dlid build failed for %s", name);
r = 0; r = 0;
goto out; goto out;
@ -528,7 +528,7 @@ static const struct dm_info *_cached_info(struct dm_pool *mem,
const struct dm_tree_node *dnode; const struct dm_tree_node *dnode;
const struct dm_info *dinfo = NULL; const struct dm_info *dinfo = NULL;
if (!(dlid = build_dm_uuid(mem, lv->lvid.s, layer))) { if (!(dlid = build_dm_uuid(mem, lv, layer))) {
log_error("Failed to build dlid for %s.", lv->name); log_error("Failed to build dlid for %s.", lv->name);
return NULL; return NULL;
} }
@ -641,7 +641,7 @@ int lv_has_target_type(struct dm_pool *mem, struct logical_volume *lv,
char *type = NULL; char *type = NULL;
char *params = NULL; char *params = NULL;
if (!(dlid = build_dm_uuid(mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(mem, lv, layer)))
return_0; return_0;
if (!(dmt = _setup_task(NULL, dlid, 0, if (!(dmt = _setup_task(NULL, dlid, 0,
@ -872,7 +872,7 @@ int dev_manager_transient(struct dev_manager *dm, struct logical_volume *lv)
const struct dm_list *segh = &lv->segments; const struct dm_list *segh = &lv->segments;
struct lv_segment *seg = NULL; struct lv_segment *seg = NULL;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
if (!(dmt = _setup_task(0, dlid, NULL, DM_DEVICE_STATUS, 0, 0))) if (!(dmt = _setup_task(0, dlid, NULL, DM_DEVICE_STATUS, 0, 0)))
@ -1015,7 +1015,7 @@ int dev_manager_snapshot_percent(struct dev_manager *dm,
if (!(name = dm_build_dm_name(dm->mem, snap_lv->vg->name, snap_lv->name, NULL))) if (!(name = dm_build_dm_name(dm->mem, snap_lv->vg->name, snap_lv->name, NULL)))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, snap_lv->lvid.s, NULL))) if (!(dlid = build_dm_uuid(dm->mem, snap_lv, NULL)))
return_0; return_0;
/* /*
@ -1047,7 +1047,7 @@ int dev_manager_mirror_percent(struct dev_manager *dm,
if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer))) if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer)))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) { if (!(dlid = build_dm_uuid(dm->mem, lv, layer))) {
log_error("dlid build failed for %s", lv->name); log_error("dlid build failed for %s", lv->name);
return 0; return 0;
} }
@ -1074,7 +1074,7 @@ int dev_manager_raid_status(struct dev_manager *dm,
char *params = NULL; char *params = NULL;
const char *layer = lv_layer(lv); const char *layer = lv_layer(lv);
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
log_debug_activation("Getting raid device status for %s.", lv->name); log_debug_activation("Getting raid device status for %s.", lv->name);
@ -1138,7 +1138,7 @@ int dev_manager_raid_message(struct dev_manager *dm,
return 0; return 0;
} }
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
if (!(dmt = _setup_task(NULL, dlid, 0, DM_DEVICE_TARGET_MSG, 0, 0))) if (!(dmt = _setup_task(NULL, dlid, 0, DM_DEVICE_TARGET_MSG, 0, 0)))
@ -1173,7 +1173,7 @@ int dev_manager_cache_status(struct dev_manager *dm,
char *params = NULL; char *params = NULL;
const char *layer = lv_layer(lv); const char *layer = lv_layer(lv);
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
log_debug_activation("Getting cache device status for %s.", lv->name); log_debug_activation("Getting cache device status for %s.", lv->name);
@ -1282,7 +1282,7 @@ int dev_manager_thin_pool_status(struct dev_manager *dm,
int r = 0; int r = 0;
/* Build dlid for the thin pool layer */ /* Build dlid for the thin pool layer */
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv)))) if (!(dlid = build_dm_uuid(dm->mem, lv, lv_layer(lv))))
return_0; return_0;
log_debug_activation("Getting thin pool device status for %s.", lv->name); log_debug_activation("Getting thin pool device status for %s.", lv->name);
@ -1328,7 +1328,7 @@ int dev_manager_thin_pool_percent(struct dev_manager *dm,
lv_layer(lv)))) lv_layer(lv))))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv)))) if (!(dlid = build_dm_uuid(dm->mem, lv, lv_layer(lv))))
return_0; return_0;
log_debug_activation("Getting device status percentage for %s", name); log_debug_activation("Getting device status percentage for %s", name);
@ -1351,7 +1351,7 @@ int dev_manager_thin_percent(struct dev_manager *dm,
if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer))) if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer)))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
log_debug_activation("Getting device status percentage for %s", name); log_debug_activation("Getting device status percentage for %s", name);
@ -1374,7 +1374,7 @@ int dev_manager_thin_device_id(struct dev_manager *dm,
int r = 0; int r = 0;
/* Build dlid for the thin layer */ /* Build dlid for the thin layer */
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv)))) if (!(dlid = build_dm_uuid(dm->mem, lv, lv_layer(lv))))
return_0; return_0;
log_debug_activation("Getting device id for %s.", dlid); log_debug_activation("Getting device id for %s.", dlid);
@ -1575,7 +1575,7 @@ static int _add_dev_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer))) if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer)))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
log_debug_activation("Getting device info for %s [%s]", name, dlid); log_debug_activation("Getting device info for %s [%s]", name, dlid);
@ -1648,7 +1648,7 @@ static int _add_partial_replicator_to_dtree(struct dev_manager *dm,
if (!_add_dev_to_dtree(dm, dtree, rlv, NULL)) if (!_add_dev_to_dtree(dm, dtree, rlv, NULL))
return_0; return_0;
if (!(uuid = build_dm_uuid(dm->mem, rlv->lvid.s, NULL))) if (!(uuid = build_dm_uuid(dm->mem, rlv, NULL)))
return_0; return_0;
rep_node = dm_tree_find_node_by_uuid(dtree, uuid); rep_node = dm_tree_find_node_by_uuid(dtree, uuid);
@ -1670,7 +1670,7 @@ static int _add_partial_replicator_to_dtree(struct dev_manager *dm,
/* If replicator exists - try connect existing heads */ /* If replicator exists - try connect existing heads */
if (rep_node) { if (rep_node) {
uuid = build_dm_uuid(dm->mem, uuid = build_dm_uuid(dm->mem,
rdev->replicator_dev->lv->lvid.s, rdev->replicator_dev->lv,
NULL); NULL);
if (!uuid) if (!uuid)
return_0; return_0;
@ -1838,7 +1838,7 @@ static int _add_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
#if 0 #if 0
/* ? Use origin_only to avoid 'deep' thin pool suspend ? */ /* ? Use origin_only to avoid 'deep' thin pool suspend ? */
/* FIXME Implement dm_tree_node_skip_childrens optimisation */ /* FIXME Implement dm_tree_node_skip_childrens optimisation */
if (!(uuid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv)))) if (!(uuid = build_dm_uuid(dm->mem, lv, lv_layer(lv))))
return_0; return_0;
if ((thin_node = dm_tree_find_node_by_uuid(dtree, uuid))) if ((thin_node = dm_tree_find_node_by_uuid(dtree, uuid)))
dm_tree_node_skip_childrens(thin_node, 1); dm_tree_node_skip_childrens(thin_node, 1);
@ -1868,7 +1868,7 @@ static int _add_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
/* Setup callback for non-activation partial tree */ /* Setup callback for non-activation partial tree */
/* Activation gets own callback when needed */ /* Activation gets own callback when needed */
/* TODO: extend _cached_info() to return dnode */ /* TODO: extend _cached_info() to return dnode */
if (!(uuid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv)))) if (!(uuid = build_dm_uuid(dm->mem, lv, lv_layer(lv))))
return_0; return_0;
if ((thin_node = dm_tree_find_node_by_uuid(dtree, uuid)) && if ((thin_node = dm_tree_find_node_by_uuid(dtree, uuid)) &&
!_thin_pool_register_callback(dm, thin_node, lv)) !_thin_pool_register_callback(dm, thin_node, lv))
@ -1979,7 +1979,7 @@ static char *_add_error_device(struct dev_manager *dm, struct dm_tree *dtree,
sprintf(errid, "missing_%d_%d", segno, s); sprintf(errid, "missing_%d_%d", segno, s);
if (!(dlid = build_dm_uuid(dm->mem, seg->lv->lvid.s, errid))) if (!(dlid = build_dm_uuid(dm->mem, seg->lv, errid)))
return_NULL; return_NULL;
if (!(name = dm_build_dm_name(dm->mem, seg->lv->vg->name, if (!(name = dm_build_dm_name(dm->mem, seg->lv->vg->name,
@ -2087,18 +2087,18 @@ int add_areas_line(struct dev_manager *dm, struct lv_segment *seg,
return_0; return_0;
continue; continue;
} }
if (!(dlid = build_dm_uuid(dm->mem, seg_metalv(seg, s)->lvid.s, NULL))) if (!(dlid = build_dm_uuid(dm->mem, seg_metalv(seg, s), NULL)))
return_0; return_0;
if (!dm_tree_node_add_target_area(node, NULL, dlid, extent_size * seg_metale(seg, s))) if (!dm_tree_node_add_target_area(node, NULL, dlid, extent_size * seg_metale(seg, s)))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, seg_lv(seg, s)->lvid.s, NULL))) if (!(dlid = build_dm_uuid(dm->mem, seg_lv(seg, s), NULL)))
return_0; return_0;
if (!dm_tree_node_add_target_area(node, NULL, dlid, extent_size * seg_le(seg, s))) if (!dm_tree_node_add_target_area(node, NULL, dlid, extent_size * seg_le(seg, s)))
return_0; return_0;
} else if (seg_type(seg, s) == AREA_LV) { } else if (seg_type(seg, s) == AREA_LV) {
if (!(dlid = build_dm_uuid(dm->mem, seg_lv(seg, s)->lvid.s, NULL))) if (!(dlid = build_dm_uuid(dm->mem, seg_lv(seg, s), NULL)))
return_0; return_0;
if (!dm_tree_node_add_target_area(node, NULL, dlid, extent_size * seg_le(seg, s))) if (!dm_tree_node_add_target_area(node, NULL, dlid, extent_size * seg_le(seg, s)))
return_0; return_0;
@ -2127,7 +2127,7 @@ static int _add_layer_target_to_dtree(struct dev_manager *dm,
{ {
const char *layer_dlid; const char *layer_dlid;
if (!(layer_dlid = build_dm_uuid(dm->mem, lv->lvid.s, lv_layer(lv)))) if (!(layer_dlid = build_dm_uuid(dm->mem, lv, lv_layer(lv))))
return_0; return_0;
/* Add linear mapping over layered LV */ /* Add linear mapping over layered LV */
@ -2146,7 +2146,7 @@ static int _add_origin_target_to_dtree(struct dev_manager *dm,
{ {
const char *real_dlid; const char *real_dlid;
if (!(real_dlid = build_dm_uuid(dm->mem, lv->lvid.s, "real"))) if (!(real_dlid = build_dm_uuid(dm->mem, lv, "real")))
return_0; return_0;
if (!dm_tree_node_add_snapshot_origin_target(dnode, lv->size, real_dlid)) if (!dm_tree_node_add_snapshot_origin_target(dnode, lv->size, real_dlid))
@ -2167,13 +2167,13 @@ static int _add_snapshot_merge_target_to_dtree(struct dev_manager *dm,
return 0; return 0;
} }
if (!(origin_dlid = build_dm_uuid(dm->mem, lv->lvid.s, "real"))) if (!(origin_dlid = build_dm_uuid(dm->mem, lv, "real")))
return_0; return_0;
if (!(cow_dlid = build_dm_uuid(dm->mem, merging_snap_seg->cow->lvid.s, "cow"))) if (!(cow_dlid = build_dm_uuid(dm->mem, merging_snap_seg->cow, "cow")))
return_0; return_0;
if (!(merge_dlid = build_dm_uuid(dm->mem, merging_snap_seg->cow->lvid.s, NULL))) if (!(merge_dlid = build_dm_uuid(dm->mem, merging_snap_seg->cow, NULL)))
return_0; return_0;
if (!dm_tree_node_add_snapshot_merge_target(dnode, lv->size, origin_dlid, if (!dm_tree_node_add_snapshot_merge_target(dnode, lv->size, origin_dlid,
@ -2199,10 +2199,10 @@ static int _add_snapshot_target_to_dtree(struct dev_manager *dm,
return 0; return 0;
} }
if (!(origin_dlid = build_dm_uuid(dm->mem, snap_seg->origin->lvid.s, "real"))) if (!(origin_dlid = build_dm_uuid(dm->mem, snap_seg->origin, "real")))
return_0; return_0;
if (!(cow_dlid = build_dm_uuid(dm->mem, snap_seg->cow->lvid.s, "cow"))) if (!(cow_dlid = build_dm_uuid(dm->mem, snap_seg->cow, "cow")))
return_0; return_0;
size = (uint64_t) snap_seg->len * snap_seg->origin->vg->extent_size; size = (uint64_t) snap_seg->len * snap_seg->origin->vg->extent_size;
@ -2516,7 +2516,7 @@ static int _add_new_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer))) if (!(name = dm_build_dm_name(dm->mem, lv->vg->name, lv->name, layer)))
return_0; return_0;
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, layer))) if (!(dlid = build_dm_uuid(dm->mem, lv, layer)))
return_0; return_0;
/* We've already processed this node if it already has a context ptr */ /* We've already processed this node if it already has a context ptr */
@ -2776,7 +2776,7 @@ static int _tree_action(struct dev_manager *dm, struct logical_volume *lv,
/* Restore fs cookie */ /* Restore fs cookie */
dm_tree_set_cookie(root, fs_get_cookie()); dm_tree_set_cookie(root, fs_get_cookie());
if (!(dlid = build_dm_uuid(dm->mem, lv->lvid.s, laopts->origin_only ? lv_layer(lv) : NULL))) if (!(dlid = build_dm_uuid(dm->mem, lv, laopts->origin_only ? lv_layer(lv) : NULL)))
goto_out; goto_out;
/* Only process nodes with uuid of "LVM-" plus VG id. */ /* Only process nodes with uuid of "LVM-" plus VG id. */

6
lib/cache_segtype/cache.c
View File

@ -360,13 +360,13 @@ static int _cache_add_target_line(struct dev_manager *dm,
struct lv_segment *cache_pool_seg = first_seg(seg->pool_lv); struct lv_segment *cache_pool_seg = first_seg(seg->pool_lv);
char *metadata_uuid, *data_uuid, *origin_uuid; char *metadata_uuid, *data_uuid, *origin_uuid;
if (!(metadata_uuid = build_dm_uuid(mem, cache_pool_seg->metadata_lv->lvid.s, NULL))) if (!(metadata_uuid = build_dm_uuid(mem, cache_pool_seg->metadata_lv, NULL)))
return_0; return_0;
if (!(data_uuid = build_dm_uuid(mem, seg_lv(cache_pool_seg, 0)->lvid.s, NULL))) if (!(data_uuid = build_dm_uuid(mem, seg_lv(cache_pool_seg, 0), NULL)))
return_0; return_0;
if (!(origin_uuid = build_dm_uuid(mem, seg_lv(seg, 0)->lvid.s, NULL))) if (!(origin_uuid = build_dm_uuid(mem, seg_lv(seg, 0), NULL)))
return_0; return_0;
if (!dm_tree_node_add_cache_target(node, len, if (!dm_tree_node_add_cache_target(node, len,

4
lib/mirror/mirrored.c
View File

@ -356,14 +356,14 @@ static int _add_log(struct dm_pool *mem, struct lv_segment *seg,
if (seg->log_lv) { if (seg->log_lv) {
/* If disk log, use its UUID */ /* If disk log, use its UUID */
if (!(log_dlid = build_dm_uuid(mem, seg->log_lv->lvid.s, NULL))) { if (!(log_dlid = build_dm_uuid(mem, seg->log_lv, NULL))) {
log_error("Failed to build uuid for log LV %s.", log_error("Failed to build uuid for log LV %s.",
seg->log_lv->name); seg->log_lv->name);
return 0; return 0;
} }
} else { } else {
/* If core log, use mirror's UUID and set DM_CORELOG flag */ /* If core log, use mirror's UUID and set DM_CORELOG flag */
if (!(log_dlid = build_dm_uuid(mem, seg->lv->lvid.s, NULL))) { if (!(log_dlid = build_dm_uuid(mem, seg->lv, NULL))) {
log_error("Failed to build uuid for mirror LV %s.", log_error("Failed to build uuid for mirror LV %s.",
seg->lv->name); seg->lv->name);
return 0; return 0;

5
lib/misc/lvm-string.c
View File

@ -15,6 +15,7 @@
#include "lib.h" #include "lib.h"
#include "lvm-string.h" #include "lvm-string.h"
#include "metadata-exported.h"
#include <ctype.h> #include <ctype.h>
@ -160,8 +161,10 @@ int is_reserved_lvname(const char *name)
return rc; return rc;
} }
char *build_dm_uuid(struct dm_pool *mem, const char *lvid, char *build_dm_uuid(struct dm_pool *mem, const struct logical_volume *lv,
const char *layer) const char *layer)
{ {
const char *lvid = lv->lvid.s;
return dm_build_dm_uuid(mem, UUID_PREFIX, lvid, layer); return dm_build_dm_uuid(mem, UUID_PREFIX, lvid, layer);
} }

3
lib/misc/lvm-string.h
View File

@ -23,6 +23,7 @@
#define UUID_PREFIX "LVM-" #define UUID_PREFIX "LVM-"
struct pool; struct pool;
struct logical_volume;
typedef enum name_error { NAME_VALID = 0, NAME_INVALID_EMPTY = -1, typedef enum name_error { NAME_VALID = 0, NAME_INVALID_EMPTY = -1,
NAME_INVALID_HYPEN = -2, NAME_INVALID_DOTS = -3, NAME_INVALID_HYPEN = -2, NAME_INVALID_DOTS = -3,
@ -32,7 +33,7 @@ typedef enum name_error { NAME_VALID = 0, NAME_INVALID_EMPTY = -1,
int emit_to_buffer(char **buffer, size_t *size, const char *fmt, ...) int emit_to_buffer(char **buffer, size_t *size, const char *fmt, ...)
__attribute__ ((format(printf, 3, 4))); __attribute__ ((format(printf, 3, 4)));
char *build_dm_uuid(struct dm_pool *mem, const char *lvid, char *build_dm_uuid(struct dm_pool *mem, const struct logical_volume *lvid,
const char *layer); const char *layer);
int validate_name(const char *n); int validate_name(const char *n);

8
lib/thin/thin.c
View File

@ -277,13 +277,13 @@ static int _thin_pool_add_target_line(struct dev_manager *dm,
return 0; return 0;
} }
if (!(metadata_dlid = build_dm_uuid(mem, seg->metadata_lv->lvid.s, NULL))) { if (!(metadata_dlid = build_dm_uuid(mem, seg->metadata_lv, NULL))) {
log_error("Failed to build uuid for metadata LV %s.", log_error("Failed to build uuid for metadata LV %s.",
seg->metadata_lv->name); seg->metadata_lv->name);
return 0; return 0;
} }
if (!(pool_dlid = build_dm_uuid(mem, seg_lv(seg, 0)->lvid.s, NULL))) { if (!(pool_dlid = build_dm_uuid(mem, seg_lv(seg, 0), NULL))) {
log_error("Failed to build uuid for pool LV %s.", log_error("Failed to build uuid for pool LV %s.",
seg_lv(seg, 0)->name); seg_lv(seg, 0)->name);
return 0; return 0;
@ -535,7 +535,7 @@ static int _thin_add_target_line(struct dev_manager *dm,
seg->lv->name); seg->lv->name);
return 0; return 0;
} }
if (!(pool_dlid = build_dm_uuid(mem, seg->pool_lv->lvid.s, lv_layer(seg->pool_lv)))) { if (!(pool_dlid = build_dm_uuid(mem, seg->pool_lv, lv_layer(seg->pool_lv)))) {
log_error("Failed to build uuid for pool LV %s.", log_error("Failed to build uuid for pool LV %s.",
seg->pool_lv->name); seg->pool_lv->name);
return 0; return 0;
@ -573,7 +573,7 @@ static int _thin_add_target_line(struct dev_manager *dm,
return 0; return 0;
} }
} }
if (!(external_dlid = build_dm_uuid(mem, seg->external_lv->lvid.s, if (!(external_dlid = build_dm_uuid(mem, seg->external_lv,
lv_layer(seg->external_lv)))) { lv_layer(seg->external_lv)))) {
log_error("Failed to build uuid for external origin LV %s.", log_error("Failed to build uuid for external origin LV %s.",
seg->external_lv->name); seg->external_lv->name);