Add explanatory comments to filesys tests.

[pintos-anon] / src / tests / filesys / extended / dir-rm-root.c

diff --git a/src/tests/filesys/extended/dir-rm-root.c b/src/tests/filesys/extended/dir-rm-root.c
index d44b8806913b2a959fe457738f79c5c68058ece1..5f9cb61509da6c04867e7246342e95c3f918a69e 100644 (file)
--- a/src/tests/filesys/extended/dir-rm-root.c
+++ b/src/tests/filesys/extended/dir-rm-root.c
@@ -1,3 +1,6 @@
+/* Try to remove the root directory.
+   This must return failure. */
+
 #include <syscall.h>
 #include "tests/lib.h"
 #include "tests/main.h"