Documentation: modern versions of ceph are not backed by btrfs

[ Update the links too. ]

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt
index bc4145ee5dba10562bb0e08f3199bcaaaad52b06..d2c6a5ccf0f5a9990fbfaca130c17c8eb85044c5 100644 (file)
--- a/Documentation/filesystems/ceph.txt
+++ b/Documentation/filesystems/ceph.txt
@@ -22,9 +22,7 @@ In contrast to cluster filesystems like GFS, OCFS2, and GPFS that rely
 on symmetric access by all clients to shared block devices, Ceph
 separates data and metadata management into independent server
 clusters, similar to Lustre.  Unlike Lustre, however, metadata and
-storage nodes run entirely as user space daemons.  Storage nodes
-utilize btrfs to store data objects, leveraging its advanced features
-(checksumming, metadata replication, etc.).  File data is striped
+storage nodes run entirely as user space daemons.  File data is striped
 across storage nodes in large chunks to distribute workload and
 facilitate high throughputs.  When storage nodes fail, data is
 re-replicated in a distributed fashion by the storage nodes themselves
@@ -164,11 +162,11 @@ More Information
 ================
 
 For more information on Ceph, see the home page at
-       http://ceph.newdream.net/
+       https://ceph.com/
 
 The Linux kernel client source tree is available at
-       git://ceph.newdream.net/git/ceph-client.git
+       https://github.com/ceph/ceph-client.git
        git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client.git
 
 and the source for the full system is at
-       git://ceph.newdream.net/git/ceph.git
+       https://github.com/ceph/ceph.git