+#ifdef CONFIG_FAILSLAB
+extern bool should_failslab(size_t size, gfp_t gfpflags, unsigned long flags);
+#else
+static inline bool should_failslab(size_t size, gfp_t gfpflags,
+ unsigned long flags)
+{
+ return false;
+}
+#endif /* CONFIG_FAILSLAB */
+