1 files changed, 93 insertions, 0 deletions
diff --git a/testcases/kernel/syscalls/statx/statx10.c b/testcases/kernel/syscalls/statx/statx10.c
new file mode 100644
index 000000000..42106285e
--- /dev/null
+++ b/testcases/kernel/syscalls/statx/statx10.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2023 FUJITSU LIMITED. All rights reserved.
+ * Author: Yang Xu <xuyang2018.jy@fujitsu.com>
+ */
+
+/*\
+ * [Description]
+ *
+ * It is a basic test for STATX_DIOALIGN mask on ext4 and xfs filesystem.
+ *
+ * - STATX_DIOALIGN   Want stx_dio_mem_align and stx_dio_offset_align value
+ *
+ * Check these two values are nonzero under dio situation when STATX_DIOALIGN
+ * in the request mask.
+ *
+ * On ext4, files that use certain filesystem features (data journaling,
+ * encryption, and verity) fall back to buffered I/O. But ltp creates own
+ * filesystem by enabling mount_device in tst_test struct. If we set block
+ * device to LTP_DEV environment, we use this block device to mount by using
+ * default mount option. Otherwise, use loop device to simuate it. So it can
+ * avoid these above situations and don't fall back to buffered I/O.
+ *
+ * Minimum Linux version required is v6.1.
+ */
+
+#define _GNU_SOURCE
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include "tst_test.h"
+#include "lapi/stat.h"
+#include "lapi/fcntl.h"
+
+#define MNTPOINT "mnt_point"
+#define TESTFILE MNTPOINT"/testfile"
+
+static void verify_statx(void)
+{
+	struct statx buf;
+
+	TST_EXP_PASS_SILENT(statx(AT_FDCWD, TESTFILE, 0, STATX_DIOALIGN, &buf),
+		"statx(AT_FDCWD, %s, 0, STATX_DIOALIGN, &buf)", TESTFILE);
+
+	if (!(buf.stx_mask & STATX_DIOALIGN)) {
+		tst_res(TCONF, "Filesystem does not support STATX_DIOALIGN");
+		return;
+	}
+
+#ifdef HAVE_STRUCT_STATX_STX_DIO_MEM_ALIGN
+	if (buf.stx_dio_mem_align != 0)
+		tst_res(TPASS, "stx_dio_mem_align:%u", buf.stx_dio_mem_align);
+	else
+		tst_res(TFAIL, "stx_dio_mem_align was 0, but DIO should be supported");
+
+	if (buf.stx_dio_offset_align != 0)
+		tst_res(TPASS, "stx_dio_offset_align:%u", buf.stx_dio_offset_align);
+	else
+		tst_res(TFAIL, "stx_dio_offset_align was 0, but DIO should be supported");
+#else
+	tst_res(TCONF, "glibc statx struct miss stx_dio_mem_align field");
+#endif
+}
+
+static void setup(void)
+{
+	int fd = -1;
+
+	if (strcmp(tst_device->fs_type, "xfs") && strcmp(tst_device->fs_type, "ext4"))
+		tst_brk(TCONF, "This test only supports ext4 and xfs");
+
+	SAFE_FILE_PRINTF(TESTFILE, "AAAA");
+	fd = open(TESTFILE, O_RDWR | O_DIRECT);
+	if (fd == -1) {
+		if (errno == EINVAL)
+			tst_brk(TCONF,
+				"The regular file is not on a filesystem that support DIO");
+		else
+			tst_brk(TBROK | TERRNO,
+				"The regular file is open with O_RDWR | O_DIRECT failed");
+	}
+	SAFE_CLOSE(fd);
+}
+
+static struct tst_test test = {
+	.test_all = verify_statx,
+	.setup = setup,
+	.needs_root = 1,
+	.mntpoint = MNTPOINT,
+	.mount_device = 1,
+	.all_filesystems = 1,
+};