[PATCH] This patch contains the following cleanups:

- cluster/sys.c: make needlessly global code static
- dlm/: "extern" declarations for variables belong into header files
        (and in this case, they are already in dlmdomain.h)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/dlm/dlmthread.c

@@ -52,9 +52,6 @@
 #define MLOG_MASK_PREFIX (ML_DLM|ML_DLM_THREAD)
 #include "cluster/masklog.h"
 
-extern spinlock_t dlm_domain_lock;
-extern struct list_head dlm_domains;
-
 static int dlm_thread(void *data);
 
 static void dlm_flush_asts(struct dlm_ctxt *dlm);