Index: uspace/srv/fs/tmpfs/tmpfs.c
===================================================================
--- uspace/srv/fs/tmpfs/tmpfs.c	(revision 3c11713f9fe58a2b3a19f2e9e4bfc0f709a63c2e)
+++ uspace/srv/fs/tmpfs/tmpfs.c	(revision 5581b46972ec913d0356783e55d0989fa3372729)
@@ -57,4 +57,6 @@
 vfs_info_t tmpfs_vfs_info = {
 	.name = NAME,
+	.concurrent_read_write = false,
+	.write_retains_size = false,
 };