+#ifdef FIO_HAVE_SYSLET
+
+struct syslet_uatom;
+struct async_head_user;
+
+/*
+ * syslet stuff
+ */
+static inline struct syslet_uatom *
+async_exec(struct syslet_uatom *atom, struct async_head_user *ahu)
+{
+ return (void *) syscall(__NR_async_exec, atom, ahu);
+}
+
+static inline long
+async_wait(unsigned long min_wait_events, unsigned long user_ring_idx,
+ struct async_head_user *ahu)
+{
+ return syscall(__NR_async_wait, min_wait_events,
+ user_ring_idx, ahu);
+}
+
+static inline long async_thread(void *event, struct async_head_user *ahu)
+{
+ return syscall(__NR_async_thread, event, ahu);
+}
+
+static inline long umem_add(unsigned long *uptr, unsigned long inc)
+{
+ return syscall(__NR_umem_add, uptr, inc);
+}
+#endif /* FIO_HAVE_SYSLET */
+