doc: deprecate [no]cephx_require_signatures map options

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
(cherry picked from commit fd5f5722a29964bb33b305a381bcf9a48cdcbb47)

diff --git a/doc/man/8/rbd.rst b/doc/man/8/rbd.rst
index 417b5af377098e4ab6a4a2ca1f5c4ab361383edf..407bf36b70b81bad4f70f4f8d63ab0ed889c4e09 100644 (file)
--- a/doc/man/8/rbd.rst
+++ b/doc/man/8/rbd.rst
@@ -740,11 +740,12 @@ Per client instance `rbd device map` options:
   that only payload checksumming is disabled, header checksumming is always on.
   For msgr2.1 protocol this option is ignored.
 
-* cephx_require_signatures - Require cephx message signing (since 3.19,
-  default).
+* cephx_require_signatures - Require msgr1 message signing feature (since 3.19,
+  default).  This option is deprecated and will be removed in the future as the
+  feature has been supported since the Bobtail release.
 
-* nocephx_require_signatures - Don't require cephx message signing (since
-  3.19).
+* nocephx_require_signatures - Don't require msgr1 message signing feature
+  (since 3.19).  This option is deprecated and will be removed in the future.
 
 * tcp_nodelay - Disable Nagle's algorithm on client sockets (since 4.0,
   default).