workflows: fstests: fix incorrect pNFS export configuration

The fstests role was incorrectly setting export_pnfs=true for pNFS
test sections. The kernel pNFS export option requires proper block
layout backend configuration (like iSCSI targets) which isn't present.

Regular NFSv4.1/4.2 testing doesn't need this option. The incorrect
configuration caused NFS server lockd failures and made NFS mounts
hang indefinitely.

Generated-by: Claude AI
Signed-off-by: Luis Chamberlain <[email protected]>

Author: mcgrof

playbooks/roles/fstests/tasks/main.yml

@@ -761,7 +761,7 @@
     export_options: "{{ nfsd_export_options }}"
     export_fstype: "{{ fstests_nfs_export_fstype }}"
     export_size: 20g
-    export_pnfs: "{{ fstests_nfs_section_pnfs | bool }}"
+    export_pnfs: false
   when:
     - fstests_fstyp == "nfs"
     - fstests_nfs_use_kdevops_nfsd|bool
@@ -775,7 +775,7 @@
     export_options: "{{ nfsd_export_options }}"
     export_fstype: "{{ fstests_nfs_export_fstype }}"
     export_size: 30g
-    export_pnfs: "{{ fstests_nfs_section_pnfs | bool }}"
+    export_pnfs: false
   when:
     - fstests_fstyp == "nfs"
     - fstests_nfs_use_kdevops_nfsd|bool