ocfs2: update docs for new features

Update documentation listing ocfs2 features to reflect the current state of
the file system. Add missing descriptions for some mount options which ocfs2
supports.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

2 files changed, 9 insertions, 7 deletions

diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt
index 8ccf0c1b58ed..ed55238023a9 100644
--- a/Documentation/filesystems/ocfs2.txt
+++ b/Documentation/filesystems/ocfs2.txt
@@ -28,11 +28,7 @@ Manish Singh  <manish.singh@oracle.com>
 Caveats
 =======
 Features which OCFS2 does not support yet:
-        - sparse files
         - extended attributes
-        - shared writable mmap
-        - loopback is supported, but data written will not
-          be cluster coherent.
         - quotas
         - cluster aware flock
         - cluster aware lockf
@@ -57,3 +53,12 @@ nointr			Do not allow signals to interrupt cluster
 atime_quantum=60(*)     OCFS2 will not update atime unless this number
                         of seconds has passed since the last update.
                         Set to zero to always update atime.
+data=ordered    (*)     All data are forced directly out to the main file
+                        system prior to its metadata being committed to the
+                        journal.
+data=writeback          Data ordering is not preserved, data may be written
+                        into the main file system after its metadata has been
+                        committed to the journal.
+preferred_slot=0(*)     During mount, try to use this filesystem slot first. If
+                        it is in use by another node, the first empty one found
+                        will be chosen. Invalid values will be ignored.
diff --git a/fs/Kconfig b/fs/Kconfig
index 58a0650293e1..f9eed6d79066 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -441,9 +441,6 @@ config OCFS2_FS
 
           Note: Features which OCFS2 does not support yet:
                   - extended attributes
-                  - shared writeable mmap
-                  - loopback is supported, but data written will not
-                    be cluster coherent.
                   - quotas
                   - cluster aware flock
                   - Directory change notification (F_NOTIFY)