diff --git a/fs/ocfs2/cluster/sys.c b/fs/ocfs2/cluster/sys.c
index f1e99461bb0d65f7121ef2278bfb0a49cdf86b69..1d9f6acafa2e509ab0c3bb5210c84813b8295fc5 100644
--- a/fs/ocfs2/cluster/sys.c
+++ b/fs/ocfs2/cluster/sys.c
@@ -50,7 +50,7 @@ static ssize_t o2cb_interface_revision_show(char *buf)
 	return snprintf(buf, PAGE_SIZE, "%u\n", O2NM_API_VERSION);
 }
 
-O2CB_ATTR(interface_revision, S_IFREG | S_IRUGO, o2cb_interface_revision_show, NULL);
+static O2CB_ATTR(interface_revision, S_IFREG | S_IRUGO, o2cb_interface_revision_show, NULL);
 
 static struct attribute *o2cb_attrs[] = {
 	&o2cb_attr_interface_revision.attr,
@@ -73,7 +73,7 @@ static struct kobj_type o2cb_subsys_type = {
 };
 
 /* gives us o2cb_subsys */
-decl_subsys(o2cb, NULL, NULL);
+static decl_subsys(o2cb, NULL, NULL);
 
 static ssize_t
 o2cb_show(struct kobject * kobj, struct attribute * attr, char * buffer)
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 047279546b4fb82608a7ae2054f399fd4de615f4..27e984f7e4cdbd40585a2927e3f9080282ed7af3 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -48,6 +48,7 @@
 #include "dlmapi.h"
 #include "dlmcommon.h"
 #include "dlmdebug.h"
+#include "dlmdomain.h"
 
 #define MLOG_MASK_PREFIX (ML_DLM|ML_DLM_MASTER)
 #include "cluster/masklog.h"
@@ -178,9 +179,6 @@ static void dlm_dump_mles(struct dlm_ctxt *dlm)
 	spin_unlock(&dlm->master_lock);
 }
 
-extern spinlock_t dlm_domain_lock;
-extern struct list_head dlm_domains;
-
 int dlm_dump_all_mles(const char __user *data, unsigned int len)
 {
 	struct list_head *iter;
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 92cd5cd66db898bd9a5f158e11d9f2bb1de89758..5be9d14f12cbcddf4ef51cab689d5ce53ea1f1db 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/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);