ocfs2: Separate out dlm lock functions.

This is the first in a series of patches to isolate ocfs2 from the
underlying cluster stack. Here we wrap the dlm locking functions with
ocfs2-specific calls. Because ocfs2 always uses the same dlm lock status
callbacks, we can eliminate the callbacks from the filesystem visible
functions.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

fs/ocfs2/super.c

@@ -933,6 +933,8 @@ static int __init ocfs2_init(void)
 
 	ocfs2_print_version();
 
+	dlmglue_init_stack();
+
 	status = init_ocfs2_uptodate_cache();
 	if (status < 0) {
 		mlog_errno(status);
@@ -988,6 +990,8 @@ static void __exit ocfs2_exit(void)
 
 	exit_ocfs2_uptodate_cache();
 
+	dlmglue_exit_stack();
+
 	mlog_exit_void();
 }