On Wed, Dec 21, 2022 at 02:34:37AM -0800, Luis Chamberlain wrote:
>This does basic rand-read testing of the character device of a
>conventional NVMe drive.
>
>Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
>---
> tests/nvme/046     | 42 ++++++++++++++++++++++++++++++++++++++++++
> tests/nvme/046.out |  2 ++
> 2 files changed, 44 insertions(+)
> create mode 100755 tests/nvme/046
> create mode 100644 tests/nvme/046.out
>
>diff --git a/tests/nvme/046 b/tests/nvme/046
>new file mode 100755
>index 000000000000..3526ab9eedab
>--- /dev/null
>+++ b/tests/nvme/046
>@@ -0,0 +1,42 @@
>+#!/bin/bash
>+# SPDX-License-Identifier: GPL-3.0+
>+# Copyright (C) 2022 Luis Chamberlain <mcgrof@kernel.org>
>+#
>+# This does basic sanity test for the nvme character device. This is a basic
>+# test and if it fails it is probably very likely other nvme character device
>+# tests would fail.
>+#
>+. tests/nvme/rc
>+
>+DESCRIPTION="basic rand-read io_uring_cmd engine for nvme-ns character device"
>+QUICK=1
>+
>+requires() {
>+	_nvme_requires
>+	_have_fio
>+}
>+
>+device_requires() {
>+	_require_test_dev_is_nvme
>+}
>+
>+test_device() {
>+	echo "Running ${TEST_NAME}"
>+	local ngdev=${TEST_DEV/nvme/ng}
>+	local fio_args=(
>+		--size=1M
>+		--cmd_type=nvme
>+		--filename="$ngdev"
>+		--time_based
>+		--runtime=10
>+	) &&

Is this && needed?

>+	_run_fio_rand_iouring_cmd "${fio_args[@]}" >>"${FULL}" 2>&1 ||

Something to change here (and therefore in other patches too).
If we change "cmd_type = something_random", test continues to show the
success while it should show failure.

How about changing above line to:
_run_fio_rand_iouring_cmd "${fio_args[@]}" || fail=true

And thanks for the series.