doc: krbd supports clones since 3.10

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/doc/rbd/rbd-snapshot.rst b/doc/rbd/rbd-snapshot.rst
index 0f6fa39e1541bd8e6c47003dd02c70b02e8efe53..96169efa51969f4374f6fb53f7790c763522d32a 100644 (file)
--- a/doc/rbd/rbd-snapshot.rst
+++ b/doc/rbd/rbd-snapshot.rst
@@ -164,10 +164,9 @@ no special restrictions with cloned images. However, the copy-on-write clone of
 a snapshot refers to the snapshot, so you **MUST** protect the snapshot before
 you clone it. The following diagram depicts the process.
 
-.. note:: Ceph only supports cloning for ``format 2`` images (i.e., created with 
-  ``rbd create --image-format 2``), and is not yet supported by the kernel ``rbd`` module. 
-  So you MUST use QEMU/KVM or ``librbd`` directly to access clones in the current
-  release.
+.. note:: Ceph only supports cloning for format 2 images (i.e., created with
+   ``rbd create --image-format 2``).  The kernel client supports cloned images
+   since kernel 3.10.
 
 Getting Started with Layering
 -----------------------------