===== mm/slab.c 1.21 vs edited =====
--- 1.21/mm/slab.c	Mon Dec 16 00:22:20 2002
+++ edited/mm/slab.c	Fri Dec 20 10:33:02 2002
@@ -928,10 +928,9 @@
 			break;
 
 		slabp = list_entry(cachep->slabs_free.prev, slab_t, list);
-#if DEBUG
-		if (slabp->inuse)
-			BUG();
-#endif
+
+		BUG_ON(slabp->inuse);
+
 		list_del(&slabp->list);
 
 		spin_unlock_irq(&cachep->spinlock);
@@ -1785,10 +1784,9 @@
 		p = searchp->slabs_free.next;
 		while (p != &searchp->slabs_free) {
 			slabp = list_entry(p, slab_t, list);
-#if DEBUG
-			if (slabp->inuse)
-				BUG();
-#endif
+
+			BUG_ON(slabp->inuse);
+
 			full_free++;
 			p = p->next;
 		}
@@ -1838,10 +1836,9 @@
 		if (p == &best_cachep->slabs_free)
 			break;
 		slabp = list_entry(p,slab_t,list);
-#if DEBUG
-		if (slabp->inuse)
-			BUG();
-#endif
+
+		BUG_ON(slabp->inuse);
+
 		list_del(&slabp->list);
 		STATS_INC_REAPED(best_cachep);