diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index 2b7a118..08b987b 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -99,4 +99,22 @@
 	return NULL;
 }
 
+#ifdef CONFIG_BLOCK
+int put_io_context(struct io_context *ioc);
+void exit_io_context(void);
+struct io_context *get_io_context(gfp_t gfp_flags, int node);
+struct io_context *alloc_io_context(gfp_t gfp_flags, int node);
+void copy_io_context(struct io_context **pdst, struct io_context **psrc);
+#else
+static inline void exit_io_context(void)
+{
+}
+
+struct io_context;
+static inline int put_io_context(struct io_context *ioc)
+{
+	return 1;
+}
+#endif
+
 #endif