1 files changed, 65 insertions, 0 deletions
diff --git a/libs/libltpswap/libswap.c b/libs/libltpswap/libswap.c
new file mode 100644
index 000000000..796ac0334
--- /dev/null
+++ b/libs/libltpswap/libswap.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
+ * Author: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
+ */
+
+#include <errno.h>
+
+#define TST_NO_DEFAULT_MAIN
+
+#include "lapi/syscalls.h"
+#include "tst_test.h"
+#include "libswap.h"
+
+/*
+ * Make a swap file
+ */
+int make_swapfile(const char *swapfile, int safe)
+{
+	if (!tst_fs_has_free(".", sysconf(_SC_PAGESIZE) * 10, TST_BYTES))
+		tst_brk(TBROK, "Insufficient disk space to create swap file");
+
+	/* create file */
+	if (tst_fill_file(swapfile, 0, sysconf(_SC_PAGESIZE), 10) != 0)
+		tst_brk(TBROK, "Failed to create swapfile");
+
+	/* make the file swapfile */
+	const char *argv[2 + 1];
+	argv[0] = "mkswap";
+	argv[1] = swapfile;
+	argv[2] = NULL;
+
+	return tst_cmd(argv, "/dev/null", "/dev/null", safe);
+}
+
+/*
+ * Check swapon/swapoff support status of filesystems or files
+ * we are testing on.
+ */
+void is_swap_supported(const char *filename)
+{
+	int fibmap = tst_fibmap(filename);
+	long fs_type = tst_fs_type(filename);
+	const char *fstype = tst_fs_type_name(fs_type);
+
+	int ret = make_swapfile(filename, 1);
+	if (ret != 0) {
+		if (fibmap == 1)
+			tst_brk(TCONF, "mkswap on %s not supported", fstype);
+		else
+			tst_brk(TFAIL, "mkswap on %s failed", fstype);
+	}
+
+	TEST(tst_syscall(__NR_swapon, filename, 0));
+	if (TST_RET == -1) {
+		if (fibmap == 1 && errno == EINVAL)
+			tst_brk(TCONF, "Swapfile on %s not implemented", fstype);
+		else
+			tst_brk(TFAIL | TTERRNO, "swapon on %s failed", fstype);
+	}
+
+	TEST(tst_syscall(__NR_swapoff, filename, 0));
+	if (TST_RET == -1)
+		tst_brk(TFAIL | TTERRNO, "swapoff on %s failed", fstype);
+}