Add explanatory comments to vm tests.

[pintos-anon] / src / tests / vm / mmap-unmap.c

diff --git a/src/tests/vm/mmap-unmap.c b/src/tests/vm/mmap-unmap.c
index 9a6a173f36dc5284aef6d62bae5f75392aec041e..d35a79efc128c1a5be38cc13f0def7f0f953669e 100644 (file)
--- a/src/tests/vm/mmap-unmap.c
+++ b/src/tests/vm/mmap-unmap.c
@@ -1,3 +1,6 @@
+/* Maps and unmaps a file and verifies that the mapped region is
+   inaccessible afterward. */
+
 #include <syscall.h>
 #include "tests/vm/sample.inc"
 #include "tests/lib.h"