Index: uspace/lib/ext2/libext2_filesystem.c
===================================================================
--- uspace/lib/ext2/libext2_filesystem.c	(revision 911ee54e3cd964c7e6596e4705d0e855437244ef)
+++ uspace/lib/ext2/libext2_filesystem.c	(revision 1affcdf3220abde47fe1219335c44e6763d27fd6)
@@ -62,5 +62,5 @@
 	fs->device = devmap_handle;
 	
-	rc = block_init(fs->device, 2048);
+	rc = block_init(EXCHANGE_SERIALIZE, fs->device, 2048);
 	if (rc != EOK) {
 		return rc;