init: Repeat the test several times.

diff --git a/init.c b/init.c
index 4694818..0757539 100644 (file)
--- a/init.c
+++ b/init.c
@@ -78,35 +78,39 @@ static char buffer[BUFSIZ];
 static void
 run_test (const char *dev)
 {
-  int fd;
+  int fd, passno;
   uint64_t size;
   ssize_t r;
 
   printf ("init: testing %s\n", dev);
-  fflush (stdout);
 
-  fd = open (dev, O_RDONLY);
-  if (fd == -1) {
-    perror (dev);
-    _exit (EXIT_FAILURE);
-  }
-  if (ioctl (fd, BLKGETSIZE64, &size) == -1) {
-    perror ("ioctl: BLKGETSIZE64");
-    _exit (EXIT_FAILURE);
-  }
+  for (passno = 0; passno < 5; ++passno) {
+    printf ("init: %s: pass %d\n", dev, passno);
+    fflush (stdout);
 
-  while (size > 0) {
-    r = read (fd, buffer, MIN (BUFSIZ, size));
-    if (r == -1) {
-      perror ("read");
+    fd = open (dev, O_RDONLY);
+    if (fd == -1) {
+      perror (dev);
+      _exit (EXIT_FAILURE);
+    }
+    if (ioctl (fd, BLKGETSIZE64, &size) == -1) {
+      perror ("ioctl: BLKGETSIZE64");
       _exit (EXIT_FAILURE);
     }
-    size -= r;
-  }
 
-  if (close (fd) == -1) {
-    perror ("close");
-    _exit (EXIT_FAILURE);
+    while (size > 0) {
+      r = read (fd, buffer, MIN (BUFSIZ, size));
+      if (r == -1) {
+        perror ("read");
+        _exit (EXIT_FAILURE);
+      }
+      size -= r;
+    }
+
+    if (close (fd) == -1) {
+      perror ("close");
+      _exit (EXIT_FAILURE);
+    }
   }
 
   printf ("init: test of %s finished successfully\n", dev);