Index: uspace/srv/vfs/vfs.c
===================================================================
--- uspace/srv/vfs/vfs.c	(revision 4863e50b336ded576421bbf2f134c80e43dcc370)
+++ uspace/srv/vfs/vfs.c	(revision 4a10b633a3da1b330c452bb67c605953783841e4)
@@ -82,5 +82,9 @@
 		case VFS_REGISTER:
 			vfs_register(callid, &call);
-			keep_on_going = false;
+			/*
+			 * Keep the connection open so that a file system can
+			 * later ask us to connect it to another file system.
+			 * This is necessary to support non-root mounts.
+			 */
 			break;
 		case VFS_MOUNT: