try to use changed

tasks/volume.yml

@@ -19,6 +19,7 @@
     pvs: "{{ item.device }}"
     state: "present"
   with_items: "{{ volumes_add }}"
+  register: "volume_group"
   when: "not skip_vg_create | default (false) | bool"
 
 - name: "Creating new logical volumes"
@@ -28,12 +29,14 @@
     size: "100%FREE"
     shrink: "no"
   with_items: "{{ volumes_add }}"
+  when: "volume_group.changed | bool"
 
 - name: "Creating new filesystems on new volumes"
   filesystem:
     fstype: "{{ item.fs_type }}"
     dev: "/dev/{{ item.vgname }}/{{ item.lvname }}"
   with_items: "{{ volumes_add }}"
+  when: "volume_group.changed | bool"
 
 - name: "Create mount points"
   file: