--- mm/shmem-orig.c	2009-03-19 22:38:36.000000000 +0200
+++ mm/shmem.c	2009-03-19 22:52:05.000000000 +0200
@@ -2562,6 +2562,7 @@ put_memory:
 	shmem_unacct_size(flags, size);
 	return ERR_PTR(error);
 }
+EXPORT_SYMBOL_GPL(shmem_file_setup);
 
 /*
  * shmem_zero_setup - setup a shared anonymous mapping