1 files changed, 24 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/tst-getdents64.c b/sysdeps/unix/sysv/linux/tst-getdents64.c
index 379ecbbcc6..691444d56e 100644
--- a/sysdeps/unix/sysv/linux/tst-getdents64.c
+++ b/sysdeps/unix/sysv/linux/tst-getdents64.c
@@ -76,8 +76,18 @@ large_buffer_checks (int fd)
     }
 }
 
-static int
-do_test (void)
+static void
+do_test_large_size (void)
+{
+  int fd = xopen (".", O_RDONLY | O_DIRECTORY, 0);
+  TEST_VERIFY (fd >= 0);
+  large_buffer_checks (fd);
+
+  xclose (fd);
+}
+
+static void
+do_test_by_size (size_t buffer_size)
 {
   /* The test compares the iteration order with readdir64.  */
   DIR *reference = opendir (".");
@@ -98,7 +108,7 @@ do_test (void)
              non-existing data.  */
           struct
           {
-            char buffer[1024];
+            char buffer[buffer_size];
             struct dirent64 pad;
           } data;
 
@@ -153,10 +163,19 @@ do_test (void)
       rewinddir (reference);
     }
 
-  large_buffer_checks (fd);
-
   xclose (fd);
   closedir (reference);
+}
+
+static int
+do_test (void)
+{
+  do_test_by_size (512);
+  do_test_by_size (1024);
+  do_test_by_size (4096);
+
+  do_test_large_size ();
+
   return 0;
 }