[LTP] [PATCH V7 10/10] syscalls/open_tree: New tests

[Cyril Hrubis]

Hi!
> +include $(top_srcdir)/include/mk/testcases.mk
> +include $(top_srcdir)/include/mk/generic_leaf_target.mk
> diff --git a/testcases/kernel/syscalls/open_tree/open_tree01.c b/testcases/kernel/syscalls/open_tree/open_tree01.c
> new file mode 100644
> index 000000000000..5fd8b9b7c438
> --- /dev/null
> +++ b/testcases/kernel/syscalls/open_tree/open_tree01.c
> @@ -0,0 +1,119 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) 2020 Viresh Kumar <viresh.kumar@linaro.org>
> + *
> + * Basic open_tree() test.
> + */
> +#include "tst_test.h"
> +#include "lapi/fsmount.h"
> +
> +#define MNTPOINT	"mntpoint"
> +#define OT_MNTPOINT	"ot_mntpoint"
> +
> +#define TCASE_ENTRY(_flags)	{.name = "Flag " #_flags, .flags = _flags}
> +
> +static struct tcase {
> +	char *name;
> +	unsigned int flags;
> +} tcases[] = {
> +	TCASE_ENTRY(OPEN_TREE_CLONE),
> +	TCASE_ENTRY(OPEN_TREE_CLOEXEC)
> +};
> +
> +static int dir_created;
> +
> +static void cleanup(void)
> +{
> +	if (dir_created)
> +		SAFE_RMDIR(OT_MNTPOINT);
> +}
> +
> +static void setup(void)
> +{
> +	fsopen_supported_by_kernel();
> +	SAFE_MKDIR(OT_MNTPOINT, 0777);
> +	dir_created = 1;
> +}
> +
> +static void run(unsigned int n)
> +{
> +	struct tcase *tc = &tcases[n];
> +	int fd, fsmfd, otfd;
> +
> +	TEST(fd = fsopen(tst_device->fs_type, 0));
> +	if (fd == -1) {
> +		tst_res(TFAIL | TERRNO, "fsopen() failed");
> +		return;
> +	}
> +
> +	TEST(fsconfig(fd, FSCONFIG_SET_STRING, "source", tst_device->dev, 0));
> +	if (TST_RET == -1) {
> +		SAFE_CLOSE(fd);
> +		tst_res(TFAIL | TERRNO, "fsconfig() failed");
> +		return;
> +	}
> +
> +	TEST(fsconfig(fd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
> +	if (TST_RET == -1) {
> +		SAFE_CLOSE(fd);
> +		tst_res(TFAIL | TERRNO, "fsconfig() failed");
> +		return;
> +	}
> +
> +	TEST(fsmfd = fsmount(fd, 0, 0));
> +	SAFE_CLOSE(fd);
> +
> +	if (fsmfd == -1) {
> +		tst_res(TFAIL | TERRNO, "fsmount() failed");
> +		return;
> +	}
> +
> +	TEST(move_mount(fsmfd, "", AT_FDCWD, MNTPOINT,
> +			MOVE_MOUNT_F_EMPTY_PATH));
> +	SAFE_CLOSE(fsmfd);

Here as well, shouldn't we just set the .mount_device flag instead?

> +	if (TST_RET == -1) {
> +		tst_res(TFAIL | TERRNO, "move_mount() failed");
> +		return;
> +	}
> +
> +	if (!tst_is_mounted_at_tmpdir(MNTPOINT)) {
> +		tst_res(TFAIL | TERRNO, "device not mounted");
> +		return;
> +	}
> +
> +	TEST(otfd = open_tree(AT_FDCWD, MNTPOINT, tc->flags | OPEN_TREE_CLONE));
> +	if (otfd == -1) {
> +		tst_res(TFAIL | TERRNO, "open_tree() failed");
> +		goto out;
> +	}
> +
> +	TEST(move_mount(otfd, "", AT_FDCWD, OT_MNTPOINT,
> +			MOVE_MOUNT_F_EMPTY_PATH));
> +	SAFE_CLOSE(otfd);
> +
> +	if (TST_RET == -1) {
> +		tst_res(TFAIL | TERRNO, "move_mount() failed");
> +		goto out;
> +	}
> +
> +	if (tst_is_mounted_at_tmpdir(OT_MNTPOINT)) {
> +		SAFE_UMOUNT(OT_MNTPOINT);
> +		tst_res(TPASS, "%s: open_tree() passed", tc->name);
> +	}
> +
> +out:
> +	SAFE_UMOUNT(MNTPOINT);
> +}
> +
> +static struct tst_test test = {
> +	.tcnt = ARRAY_SIZE(tcases),
> +	.test = run,
> +	.setup = setup,
> +	.cleanup = cleanup,
> +	.needs_root = 1,
> +	.format_device = 1,
> +	.mntpoint = MNTPOINT,
> +	.all_filesystems = 1,
> +	.dev_fs_flags = TST_FS_SKIP_FUSE,
> +};

-- 
Cyril Hrubis
chrubis@suse.cz