diff --git a/include/linux/dax.h b/include/linux/dax.h
index 5b62f5d..9b2d5ba 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -10,6 +10,7 @@
 
 int dax_read_lock(void);
 void dax_read_unlock(int id);
+struct dax_device *dax_get_by_host(const char *host);
 
 /*
  * We use lowest available bit in exceptional entry for locking, one bit for