ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node

ocfs2: pass ocfs2_cluster_connection to ocfs2_this_node

This is done to differentiate between using and not using controld and use
the connection information accordingly.  We need to be backward
compatible.  So, we use a new enum ocfs2_connection_type to identify when
controld is used and when it is not.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>