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Message-ID: <oxvbdtehbmna3uiz5lifjrzekohdjw4wsrh3ydn4yhtleqbpa4@xxvgmggzq25y>
Date:   Sun, 7 May 2023 23:19:28 +0000
From:   Shinichiro Kawasaki <shinichiro.kawasaki@....com>
To:     Daniel Wagner <dwagner@...e.de>
CC:     "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        Chaitanya Kulkarni <kch@...dia.com>,
        Shin'ichiro Kawasaki <shinichiro@...tmail.com>,
        Hannes Reinecke <hare@...e.de>
Subject: Re: [PATCH blktests v3 08/12] nvme/rc: Add minimal test image size
 requirement

Nit: the commit title subject can be "nvme: " since it touches both nvme/rc and
nvme test cases.

On May 03, 2023 / 10:02, Daniel Wagner wrote:
> Some tests need a minimal test image size to work correctly. Thus add a
> helper to check the size and update these tests accordingly.
> 
> The image minimum is 4M because some of the test have hard coded values.
> All tests which use the xfs fio verification job have a minimum
> requirement of 350M impossed by the xfs filesystem.
> 
> Reviewed-by: Hannes Reinecke <hare@...e.de>
> Signed-off-by: Daniel Wagner <dwagner@...e.de>
> ---
>  tests/nvme/012 |  1 +
>  tests/nvme/013 |  1 +
>  tests/nvme/029 |  1 -
>  tests/nvme/045 |  2 +-
>  tests/nvme/rc  | 15 +++++++++++++++
>  5 files changed, 18 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/nvme/012 b/tests/nvme/012
> index ecf44fcb5a51..efe227538c57 100755
> --- a/tests/nvme/012
> +++ b/tests/nvme/012
> @@ -16,6 +16,7 @@ requires() {
>  	_have_fio
>  	_have_loop
>  	_require_nvme_trtype_is_fabrics
> +	_require_nvme_test_img_size 350m
>  }
>  
>  test() {
> diff --git a/tests/nvme/013 b/tests/nvme/013
> index e249add46295..14e646a19c47 100755
> --- a/tests/nvme/013
> +++ b/tests/nvme/013
> @@ -15,6 +15,7 @@ requires() {
>  	_have_xfs
>  	_have_fio
>  	_require_nvme_trtype_is_fabrics
> +	_require_nvme_test_img_size 350m
>  }
>  
>  test() {
> diff --git a/tests/nvme/029 b/tests/nvme/029
> index 1808b7b0edf1..c6d38b42af70 100755
> --- a/tests/nvme/029
> +++ b/tests/nvme/029
> @@ -14,7 +14,6 @@ requires() {
>  	_nvme_requires
>  	_have_loop
>  	_require_nvme_trtype_is_fabrics
> -	_require_test_dev_size 1M

As I mentioned for the previous patch, this line was added and removed.

>  }
>  
>  test_user_io()
> diff --git a/tests/nvme/045 b/tests/nvme/045
> index 7c51da27b5f1..99012f6bed8f 100755
> --- a/tests/nvme/045
> +++ b/tests/nvme/045
> @@ -120,7 +120,7 @@ test() {
>  
>  	nvmedev=$(_find_nvme_dev "${subsys_name}")
>  
> -	_run_fio_rand_io --size=8m --filename="/dev/${nvmedev}n1"
> +	_run_fio_rand_io --size=4m --filename="/dev/${nvmedev}n1"
>  
>  	_nvme_disconnect_subsys "${subsys_name}"
>  
> diff --git a/tests/nvme/rc b/tests/nvme/rc
> index 51dde39c2966..0b4d5f6570d6 100644
> --- a/tests/nvme/rc
> +++ b/tests/nvme/rc
> @@ -21,6 +21,7 @@ nvme_img_size=${nvme_img_size:-"1G"}
>  
>  _nvme_requires() {
>  	_have_program nvme
> +	_require_nvme_test_img_size 4m
>  	case ${nvme_trtype} in
>  	loop)
>  		_have_driver nvme-loop
> @@ -94,6 +95,20 @@ _require_test_dev_is_nvme() {
>  	return 0
>  }
>  
> +_require_nvme_test_img_size() {
> +	local require_sz_mb
> +	local nvme_img_size_mb
> +
> +	require_sz_mb="$(convert_to_mb "$1")"
> +	nvme_img_size_mb="$(convert_to_mb "${nvme_img_size}")"
> +
> +	if (( "${nvme_img_size_mb}" < "$require_sz_mb" )); then

FYI, in bash arithmetic operation (( )), we don't need to add "${}" for
variables. Code below should work.

	if ((nvme_img_size_mb < require_sz_mb)); then

> +		SKIP_REASONS+=("nvme_img_size must be at least ${require_sz_mb}m")
> +		return 1
> +	fi
> +	return 0
> +}
> +
>  _require_nvme_trtype() {
>  	local trtype
>  	for trtype in "$@"; do
> -- 
> 2.40.0
> 

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