Add explanatory comments to vm tests.

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

diff --git a/src/tests/vm/mmap-read.c b/src/tests/vm/mmap-read.c
index e4ca9613bee2425a44f6de394569e7c9fab62dc9..c0f23a1a3111cdbb113c152789a052852238ecdb 100644 (file)
--- a/src/tests/vm/mmap-read.c
+++ b/src/tests/vm/mmap-read.c
@@ -1,3 +1,5 @@
+/* Uses a memory mapping to read a file. */
+
 #include <string.h>
 #include <syscall.h>
 #include "tests/vm/sample.inc"