cov: annotate known use of validated lv name

lib/metadata/cache_manip.c

@@ -420,7 +420,7 @@ struct logical_volume *lv_cache_create(struct logical_volume *pool_lv,
 
 	if (!(segtype = get_segtype_from_string(cmd, SEG_TYPE_NAME_CACHE)))
 		return_NULL;
-
+	/* coverity[format_string_injection] lv name is already validated */
 	if (!insert_layer_for_lv(cmd, cache_lv, 0, "_corig"))
 		return_NULL;
 

lib/metadata/integrity_manip.c

@@ -678,6 +678,7 @@ int lv_add_integrity_to_raid(struct logical_volume *lv, struct integrity_setting
 		 * but gets a new integrity segment, in place of the segments
 		 * that were moved to lv_iorig.
 		 */
+		/* coverity[format_string_injection] lv name is already validated */
 		if (!insert_layer_for_lv(cmd, lv_image, 0, "_iorig"))
 			goto_bad;
 

lib/metadata/mirror.c

@@ -676,7 +676,7 @@ static int _split_mirror_images(struct logical_volume *lv,
 		 * A number of images have been split and
 		 * a new mirror layer must be formed
 		 */
-
+		/* coverity[format_string_injection] lv name is already validated */
 		if (!insert_layer_for_lv(cmd, new_lv, 0, "_mimage_%d")) {
 			log_error("Failed to build new mirror, %s.",
 				  display_lvname(new_lv));
@@ -1604,6 +1604,7 @@ static struct logical_volume *_set_up_mirror_log(struct cmd_context *cmd,
 		suffix = "_mlog";
 	}
 
+	/* coverity[format_string_injection] lv name is already validated */
 	if (!(log_lv = _create_mirror_log(lv, ah, alloc, lv_name, suffix))) {
 		log_error("Failed to create mirror log.");
 		return NULL;

lib/metadata/pool_manip.c

@@ -794,6 +794,7 @@ int handle_pool_metadata_spare(struct volume_group *vg, uint32_t extents,
 		  lv->le_count, extents);
 	/* Check spare LV is big enough and preserve segtype */
 	if ((lv->le_count < extents) && seg &&
+	    /* coverity[format_string_injection] lv name is already validated */
 	    !lv_extend(lv, seg->segtype,
 		       seg->area_count / seg_mirrors,
 		       seg->stripe_size,

lib/metadata/vdo_manip.c

@@ -432,6 +432,7 @@ int convert_vdo_pool_lv(struct logical_volume *data_lv,
 	*virtual_extents = vdo_logical_size / extent_size;
 
 	/* Move segments from existing data_lv into LV_vdata */
+	/* coverity[format_string_injection] lv name is already validated */
 	if (!(data_lv = insert_layer_for_lv(cmd, vdo_pool_lv, 0, "_vdata")))
 		return_0;
 

tools/lvconvert.c

@@ -3448,6 +3448,7 @@ static int _lvconvert_to_pool(struct cmd_context *cmd,
 	 * moved to pool_lv by _lvconvert_insert_thin_layer, and now is
 	 * moved to data_lv.)
 	 */
+	/* coverity[format_string_injection] lv name is already validated */
 	if (!(data_lv = insert_layer_for_lv(cmd, pool_lv, 0,
 					    (to_cachepool ? "_cdata" : "_tdata"))))
 		goto_bad;