[PATCH 3/3] doc: document new CephFS mount device syntax

[Venky Shankar <vshankar@redhat.com>]

Signed-off-by: Venky Shankar <vshankar@redhat.com>
---
 Documentation/filesystems/ceph.rst | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/Documentation/filesystems/ceph.rst b/Documentation/filesystems/ceph.rst
index 7d2ef4e27273..0e4ccefb7aea 100644
--- a/Documentation/filesystems/ceph.rst
+++ b/Documentation/filesystems/ceph.rst
@@ -82,7 +82,7 @@ Mount Syntax
 
 The basic mount syntax is::
 
- # mount -t ceph monip[:port][,monip2[:port]...]:/[subdir] mnt
+ # mount -t ceph user@fs_name=/[subdir] mnt -o mon_host=monip1[:port][/monip2[:port]]
 
 You only need to specify a single monitor, as the client will get the
 full list when it connects.  (However, if the monitor you specify
@@ -90,16 +90,26 @@ happens to be down, the mount won't succeed.)  The port can be left
 off if the monitor is using the default.  So if the monitor is at
 1.2.3.4::
 
- # mount -t ceph 1.2.3.4:/ /mnt/ceph
+ # mount -t ceph cephuser@cephfs=/ /mnt/ceph -o mon_host=1.2.3.4
 
 is sufficient.  If /sbin/mount.ceph is installed, a hostname can be
-used instead of an IP address.
+used instead of an IP address. Multiple monitor addresses can be
+passed by separating each address with a slash (`/`)::
 
+  # mount -t ceph cephuser@cephfs=/ /mnt/ceph -o mon_host=192.168.1.100/192.168.1.101
 
+When using the mount helper, monitor address can be read from ceph
+configuration file if available.
 
 Mount Options
 =============
 
+  mon_host=ip_address[:port][/ip_address[:port]]
+	Monitor address to the cluster
+
+  fsid=cluster-id
+	FSID of the cluster
+
   ip=A.B.C.D[:N]
 	Specify the IP and/or port the client should bind to locally.
 	There is normally not much reason to do this.  If the IP is not
-- 
2.27.0