[GFS2] proper extern for gfs2/locking/dlm/mount.c:gdlm_ops

This patch adds a proper extern declaration for gdlm_ops in
fs/gfs2/locking/dlm/lock_dlm.h
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/locking/dlm/lock_dlm.h

@@ -183,5 +183,10 @@ int gdlm_plock_get(void *, struct lm_lockname *, struct file *,
 		struct file_lock *);
 int gdlm_punlock(void *, struct lm_lockname *, struct file *,
 		struct file_lock *);
+
+/* mount.c */
+
+extern const struct lm_lockops gdlm_ops;
+
 #endif
 

fs/gfs2/locking/dlm/main.c

@@ -11,8 +11,6 @@
 
 #include "lock_dlm.h"
 
-extern struct lm_lockops gdlm_ops;
-
 static int __init init_lock_dlm(void)
 {
 	int error;

fs/gfs2/locking/dlm/sysfs.c

@@ -12,8 +12,6 @@
 
 #include "lock_dlm.h"
 
-extern struct lm_lockops gdlm_ops;
-
 static ssize_t proto_name_show(struct gdlm_ls *ls, char *buf)
 {
 	return sprintf(buf, "%s\n", gdlm_ops.lm_proto_name);