change if() BUG(); to BUG_ON() in mm/pdflush.c

@@ -202,8 +202,7 @@ int pdflush_operation(void (*fn)(unsigne
 	unsigned long flags;
 	int ret = 0;
 
-	if (fn == NULL)
-		BUG();		/* Hard to diagnose if it's deferred */
+	BUG_ON(fn == NULL);	/* Hard to diagnose if it's deferred */
 
 	spin_lock_irqsave(&pdflush_lock, flags);
 	if (list_empty(&pdflush_list)) {

@@ -60,7 +60,7 @@ typedef enum {
 } boolean_t;
 
 #undef ASSERT
-#define ASSERT(x)	if(!(x)) BUG()
+#define ASSERT(x)	BUG_ON(!(x))
 #define MSGOUT(S, A, B)	printk(KERN_DEBUG S "\n", A, B)
 
 #ifdef DBG