Description of problem:
===============

Currently, when QoS is disabled at the cluster level, the QoS-related entries still appear in the export information, which may give users the incorrect impression that the QoS limit is applied to the export. 
Ideally, when QoS is disabled at the cluster level, the export information should not display that QoS is enabled.



Version-Release number of selected component (if applicable):
=====================

[ceph: root@argo016 /]# ceph --version
ceph version 19.2.0-80.2.TEST.ganeshafeatures002.el9cp (ffc22ab18dc4b177c9aa46f98447068155679ff0) squid (stable)

[ceph: root@argo016 /]# rpm -qa | grep nfs
libnfsidmap-2.5.4-27.el9.x86_64
nfs-utils-2.5.4-27.el9.x86_64
nfs-ganesha-selinux-6.5-1.7.el9cp.noarch
nfs-ganesha-6.5-1.7.el9cp.x86_64
nfs-ganesha-ceph-6.5-1.7.el9cp.x86_64
nfs-ganesha-rados-grace-6.5-1.7.el9cp.x86_64
nfs-ganesha-rados-urls-6.5-1.7.el9cp.x86_64
nfs-ganesha-rgw-6.5-1.7.el9cp.x86_64
nfs-ganesha-utils-6.5-1.7.el9cp.x86_64

How reproducible:
=============
Every time


Steps to Reproduce:
=============
1. Enable the QoS on the NFS Ganesha at the cluster level

# ceph nfs cluster qos get nfsganesha
{
  "combined_rw_bw_control": false,
  "enable_bw_control": true,
  "enable_iops_control": false,
  "enable_qos": true,
  "max_export_read_bw": "1.0GB",
  "max_export_write_bw": "1.0GB",
  "qos_type": "PerShare"
}

2. Enable the QoS at the export level

[ceph: root@argo016 /]# ceph nfs export qos enable bandwidth_control nfsganesha /ganeshavol1 --max_export_write_bw=10MB --max_export_read_bw=10MB

[ceph: root@argo016 /]# ceph nfs export info nfsganesha /ganeshavol1
{
  "access_type": "RW",
  "clients": [],
  "cluster_id": "nfsganesha",
  "export_id": 1,
  "fsal": {
    "cmount_path": "/",
    "fs_name": "cephfs",
    "name": "CEPH",
    "user_id": "nfs.nfsganesha.cephfs.2c1043d4"
  },
  "path": "/volumes/ganeshagroup1/ganeshavol1/11b537ef-e436-48b1-b38f-77a80c42455f",
  "protocols": [
    3,
    4
  ],
  "pseudo": "/ganeshavol1",
  "qos_block": {
    "combined_rw_bw_control": false,
    "enable_bw_control": true,
    "enable_qos": true,
    "max_export_read_bw": "10.0MB",
    "max_export_write_bw": "10.0MB"
  },
  "security_label": true,
  "squash": "none",
  "transports": [
    "TCP"
  ]
}

3. Disable the QoS at the cluster level now

[ceph: root@argo016 /]# ceph nfs cluster qos disable bandwidth_control nfsganesha
[ceph: root@argo016 /]# ceph nfs cluster qos get nfsganesha
{
  "combined_rw_bw_control": false,
  "enable_bw_control": false,
  "enable_iops_control": false,
  "enable_qos": false
}
[ceph: root@argo016 /]#

4. Check the export info 

[ceph: root@argo016 /]# ceph nfs export info nfsganesha /ganeshavol1
{
  "access_type": "RW",
  "clients": [],
  "cluster_id": "nfsganesha",
  "export_id": 1,
  "fsal": {
    "cmount_path": "/",
    "fs_name": "cephfs",
    "name": "CEPH",
    "user_id": "nfs.nfsganesha.cephfs.2c1043d4"
  },
  "path": "/volumes/ganeshagroup1/ganeshavol1/11b537ef-e436-48b1-b38f-77a80c42455f",
  "protocols": [
    3,
    4
  ],
  "pseudo": "/ganeshavol1",
  "qos_block": {
    "combined_rw_bw_control": false,
    "enable_bw_control": true,
    "enable_qos": true,
    "max_export_read_bw": "10.0MB",
    "max_export_write_bw": "10.0MB"
  },
  "security_label": true,
  "squash": "none",
  "transports": [
    "TCP"
  ]
}


Actual results:
===========
At the export level, QoS still appears as enabled, which gives users an incorrect impression.


Expected results:
==========
When QoS is disabled at the cluster level, it should also be disabled at the export level. The QoS-related entries should not appear when checking the export information.


Additional info: