Index: src/hash.c
===================================================================
--- src/hash.c	(revision 18)
+++ src/hash.c	(working copy)
@@ -1317,8 +1317,10 @@
 	struct list_head *head;
 	struct list_head *iter = NULL;
 
+#ifdef CONFIG_SMP
 	if (spin_trylock(&h->lock))
 		BUG();
+#endif
 
 	bucket = OCFS_INODE_HASH(h, off);
 
@@ -1347,8 +1349,10 @@
 	struct list_head *head;
 	struct list_head *iter = NULL;
 
+#ifdef CONFIG_SMP
 	if (spin_trylock(&h->lock))
 		BUG();
+#endif
 
 	for(bucket = 0; bucket < h->size; bucket++) {
 		head = &h->hash[bucket];