Merge pull request #62668 from rishabh-d-dave/vols-namespace

mgr/vol: include group name in subvolume's pool namespace name

Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Kotresh HR <khiremat@redhat.com>

diff --cc PendingReleaseNotes
Simple merge

diff --cc doc/cephfs/fs-volumes.rst
index 951d47ef1b692fb2d4933a621a2e2aedb324be99,f6adf1b4caa7c3593acd1cf2dfa8efbcdb5f1aef..66b641efbf20e5dcb64e9c304d3056538fe9999b
--- 1/doc/cephfs/fs-volumes.rst
--- 2/doc/cephfs/fs-volumes.rst
+++ b/doc/cephfs/fs-volumes.rst
@@@ -1624,8 -1624,16 +1624,16 @@@ Before resorting to a measure as drasti
  drastic measures and then assess if the file system experience has improved due
  to it. One example of such less drastic measure is to disable asynchronous
  threads launched by volumes plugins for cloning and purging trash. For details
 -on these see: :ref:`pause-purge-threads` and :ref:`pause-clone-threads`.
 +on these see: :ref:`Pause Purge threads<pause-purge-threads>` and :ref:`Pause Clone Threads<pause-clone-threads>`.
  
  
+ 
+ .. note:: Pool namespace for CephFS volumes until Tentacle release had names in
+    this format: "fsvolumens__<subvol-name>". However, this could lead to clash
+    in namespace when two subvolumes of same were located in this different
+    subvolume group. And therefore after Tentacle pool namespace format was
+    changed to "fsvolumens__<subvol-grp-name>_<subvol-name>".
+ 
+ 
  .. _manila: https://github.com/openstack/manila
  .. _CSI: https://github.com/ceph/ceph-csi

diff --cc qa/tasks/cephfs/test_volumes.py
Simple merge