Index: uspace/srv/fs/tmpfs/tmpfs_ops.c
===================================================================
--- uspace/srv/fs/tmpfs/tmpfs_ops.c	(revision 582a0b84b0a73672531e7b404a89997af41ba0b9)
+++ uspace/srv/fs/tmpfs/tmpfs_ops.c	(revision 81dd2edaddd4f5ceb84c52eabccc844c4c1a5661)
@@ -421,4 +421,9 @@
  */
 
+static int tmpfs_fsprobe(service_id_t service_id, vfs_fs_probe_info_t *info)
+{
+	return ENOTSUP;
+}
+
 static int
 tmpfs_mounted(service_id_t service_id, const char *opts,
@@ -652,4 +657,5 @@
 
 vfs_out_ops_t tmpfs_ops = {
+	.fsprobe = tmpfs_fsprobe,
 	.mounted = tmpfs_mounted,
 	.unmounted = tmpfs_unmounted,