X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Ftests%2Ffilesys%2Fextended%2Fgrow-sparse.c;h=6eab210bd135045071b09e3f84c8aa78a433df14;hb=c0206643b024b6f0e6cde1cbb5e7d37abbc84c69;hp=11e3b6eabc34cbc455ff2bd2009edb9d9003883e;hpb=615bf3b3d2a8573ed6fb9ddc0055745e163ac999;p=pintos-anon

diff --git a/src/tests/filesys/extended/grow-sparse.c b/src/tests/filesys/extended/grow-sparse.c
index 11e3b6e..6eab210 100644
--- a/src/tests/filesys/extended/grow-sparse.c
+++ b/src/tests/filesys/extended/grow-sparse.c
@@ -1,3 +1,6 @@
+/* Tests that seeking past the end of a file and writing will
+   properly zero out the region in between. */
+
 #include <syscall.h>
 #include "tests/lib.h"
 #include "tests/main.h"
@@ -7,16 +10,16 @@ static char buf[76543];
 void
 test_main (void) 
 {
-  const char *filename = "testfile";
+  const char *file_name = "testfile";
   char zero = 0;
   int fd;
   
-  CHECK (create (filename, 0), "create \"%s\"", filename);
-  CHECK ((fd = open (filename)) > 1, "open \"%s\"", filename);
-  msg ("seek \"%s\"", filename);
+  CHECK (create (file_name, 0), "create \"%s\"", file_name);
+  CHECK ((fd = open (file_name)) > 1, "open \"%s\"", file_name);
+  msg ("seek \"%s\"", file_name);
   seek (fd, sizeof buf - 1);
-  CHECK (write (fd, &zero, 1) > 0, "write \"%s\"", filename);
-  msg ("close \"%s\"", filename);
+  CHECK (write (fd, &zero, 1) > 0, "write \"%s\"", file_name);
+  msg ("close \"%s\"", file_name);
   close (fd);
-  check_file (filename, buf, sizeof buf);
+  check_file (file_name, buf, sizeof buf);
 }