doc/cephfs: update docs since "subvolume info" cmd output can also...

contain source field in it.

Signed-off-by: Rishabh Dave <ridave@redhat.com>
(cherry picked from commit 0a029149df824ef0f026af912925d809b31862ef)

diff --git a/doc/cephfs/fs-volumes.rst b/doc/cephfs/fs-volumes.rst
index a8a9da61110ca5070d421739899a3d32c2f89ff5..838ab5aaf308295f2d41ef37a0580759275ba285 100644 (file)
--- a/doc/cephfs/fs-volumes.rst
+++ b/doc/cephfs/fs-volumes.rst
@@ -480,6 +480,10 @@ The output format is JSON and contains the following fields.
 * ``features``: features supported by the subvolume
 * ``state``: current state of the subvolume
 * ``earmark``: earmark of the subvolume
+* ``source``: exists only if subvolume is a clone. It contains name of the
+  source snapshot and names of the volume, subvolume group and subvolume in
+  which the source snapshot is located. If the clone was created with Tentacle
+  or earlier release, value of this field is 'N/A'.
 
 If a subvolume has been removed but its snapshots have been retained, the
 output contains only the following fields.