export file_lookup_open

generic_open_file is not always appropriate method, but other modules
may want to implement similar callback and use hash optimization.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/filesetup.c b/filesetup.c
index 64da8bb..06b7d7f 100644
--- a/filesetup.c
+++ b/filesetup.c
@@ -435,7 +435,7 @@
 	return ret;
 }
 
-static int file_lookup_open(struct fio_file *f, int flags)
+int file_lookup_open(struct fio_file *f, int flags)
 {
 	struct fio_file *__f;
 	int from_hash;