[LTP] [PATCH v4 5/9] syscalls/sync: add sync device test-case

Sumit Garg
2019-02-21T09:00:12Z

sync03 tests to sync file having large dirty file pages to block device.
It tests all supported filesystems on a test block device.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/sync/.gitignore | 1 +
testcases/kernel/syscalls/sync/sync03.c | 60 +++++++++++++++++++++++++++++++
3 files changed, 62 insertions(+)
create mode 100644 testcases/kernel/syscalls/sync/sync03.c

diff --git a/runtest/syscalls b/runtest/syscalls
index 9442740..dba0dee 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1345,6 +1345,7 @@ symlinkat01 symlinkat01

sync01 sync01
sync02 sync02
+sync03 sync03

syncfs01 syncfs01

diff --git a/testcases/kernel/syscalls/sync/.gitignore b/testcases/kernel/syscalls/sync/.gitignore
index d8d304d..04f4710 100644
--- a/testcases/kernel/syscalls/sync/.gitignore
+++ b/testcases/kernel/syscalls/sync/.gitignore
@@ -1,2 +1,3 @@
/sync01
/sync02
+/sync03
diff --git a/testcases/kernel/syscalls/sync/sync03.c b/testcases/kernel/syscalls/sync/sync03.c
new file mode 100644
index 0000000..4dc2ff6
--- /dev/null
+++ b/testcases/kernel/syscalls/sync/sync03.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2019 Linaro Limited. All rights reserved.
+ * Author: Sumit Garg <sumit.garg@linaro.org>
+ */
+
+/*
+ * sync03
+ *
+ * It basically tests sync() to sync test file having large dirty file pages
+ * to block device. Also, it tests all supported filesystems on a test block
+ * device.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include "tst_test.h"
+
+#define MNTPOINT "mnt_point"
+#define TST_FILE MNTPOINT"/test"
+#define TST_FILE_SIZE_MB 32
+#define SIZE_MB (1024*1024)
+#define MODE 0644
+
+static void verify_sync(void)
+{
+ int fd;
+ unsigned long written;
+
+ fd = SAFE_OPEN(TST_FILE, O_RDWR|O_CREAT, MODE);
+
+ tst_dev_bytes_written(tst_device->dev);
+
+ tst_fill_fd(fd, 0, SIZE_MB, TST_FILE_SIZE_MB);
+
+ TEST_VOID(sync());
+
+ if (TST_RET)
+ tst_brk(TFAIL | TTERRNO, "sync() failed");
+
+ written = tst_dev_bytes_written(tst_device->dev);
+
+ SAFE_CLOSE(fd);
+
+ if (written >= SIZE_MB * TST_FILE_SIZE_MB)
+ tst_res(TPASS, "Test file synced to device");
+ else
+ tst_res(TFAIL, "Failed to sync test file to device");
+}
+
+static struct tst_test test = {
+ .needs_root = 1,
+ .mount_device = 1,
+ .all_filesystems = 1,
+ .mntpoint = MNTPOINT,
+ .test_all = verify_sync,
+};
--
2.7.4