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-rw-r--r--include/linux/aio.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/aio.h b/include/linux/aio.h
index 09b276c35227..f6b8cf99b596 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -204,12 +204,21 @@ struct kioctx {
/* prototypes */
extern unsigned aio_max_size;
+#ifdef CONFIG_AIO
extern ssize_t wait_on_sync_kiocb(struct kiocb *iocb);
extern int aio_put_req(struct kiocb *iocb);
extern void kick_iocb(struct kiocb *iocb);
extern int aio_complete(struct kiocb *iocb, long res, long res2);
struct mm_struct;
extern void exit_aio(struct mm_struct *mm);
+#else
+static inline ssize_t wait_on_sync_kiocb(struct kiocb *iocb) { return 0; }
+static inline int aio_put_req(struct kiocb *iocb) { return 0; }
+static inline void kick_iocb(struct kiocb *iocb) { }
+static inline int aio_complete(struct kiocb *iocb, long res, long res2) { return 0; }
+struct mm_struct;
+static inline void exit_aio(struct mm_struct *mm) { }
+#endif /* CONFIG_AIO */
#define io_wait_to_kiocb(wait) container_of(wait, struct kiocb, ki_wait)