without this feature will trigger the MDS to raise a HEALTH_ERR on the
cluster, MDS_CLIENTS_BROKEN_ROOTSQUASH. See the documentation on this warning
and the new feature bit for more information.
+* CephFS: Expanded removexattr support for cephfs virtual extended attributes.
+ Previously one had to use setxattr to restore the default in order to "remove".
+ You may now properly use removexattr to remove. You can also now remove layout
+ on root inode, which then will restore layout to default layout.
* cls_cxx_gather is marked as deprecated.
* CephFS: cephfs-journal-tool is guarded against running on an online file system.