[PATCH] blktests: use global configfs variable

[chaitany kulkarni]

Please drop this one, let me resend this patch.

On Mon, May 7, 2018 at 1:04 PM, Chaitanya Kulkarni
<chaitanya.kulkarni at wdc.com> wrote:
> This patch introduces a global variable to hold the
> configfs nvmet path. Now we don't need repetitive
> local variables to hold the path and testcases
> can use the newly introduced variable if needed.
>
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at wdc.com>
> ---
>  common/nvme | 27 +++++++++++----------------
>  1 file changed, 11 insertions(+), 16 deletions(-)
>
> diff --git a/common/nvme b/common/nvme
> index c6718f0..797e6db 100644
> --- a/common/nvme
> +++ b/common/nvme
> @@ -17,6 +17,8 @@
>  # You should have received a copy of the GNU General Public License
>  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
>
> +NVMET_CFS="/sys/kernel/config/nvmet/"
> +
>  _test_dev_is_nvme() {
>         if ! readlink -f "$TEST_DEV_SYSFS/device" | grep -q nvme; then
>                 SKIP_REASON="$TEST_DEV is not a NVMe device"
> @@ -27,33 +29,29 @@ _test_dev_is_nvme() {
>
>  _create_nvmet_port() {
>         local trtype="$1"
> -       local nvmet_cfs="/sys/kernel/config/nvmet/"
> -
>         local port
>         for ((port = 0; ; port++)); do
> -               if [[ ! -e "${nvmet_cfs}/${port}" ]]; then
> +               if [[ ! -e "${NVMET_CFG}/${port}" ]]; then
>                         break
>                 fi
>         done
>
> -       mkdir "${nvmet_cfs}/ports/${port}"
> -       echo "${trtype}" > "${nvmet_cfs}/ports/${port}/addr_trtype"
> +       mkdir "${NVMET_CFG}/ports/${port}"
> +       echo "${trtype}" > "${NVMET_CFG}/ports/${port}/addr_trtype"
>
>         echo "${port}"
>  }
>
>  _remove_nvmet_port() {
>         local port="$1"
> -       local nvmet_cfs="/sys/kernel/config/nvmet/"
> -       rmdir "${nvmet_cfs}/ports/${port}"
> +       rmdir "${NVMET_CFG}/ports/${port}"
>  }
>
>  _create_nvmet_subsystem() {
>         local nvmet_subsystem="$1"
>         local blkdev="$2"
>         local uuid="00000000-0000-0000-0000-000000000000"
> -       local nvmet_cfs="/sys/kernel/config/nvmet/"
> -       local cfs_path="${nvmet_cfs}/subsystems/${nvmet_subsystem}"
> +       local cfs_path="${NVMET_CFG}/subsystems/${nvmet_subsystem}"
>
>         if [[ $# -eq 3 ]]; then
>                 uuid="$3"
> @@ -69,8 +67,7 @@ _create_nvmet_subsystem() {
>
>  _remove_nvmet_subsystem() {
>         local nvmet_subsystem="$1"
> -       local nvmet_cfs="/sys/kernel/config/nvmet/"
> -       local cfs_path="${nvmet_cfs}/subsystems/${nvmet_subsystem}"
> +       local cfs_path="${NVMET_CFG}/subsystems/${nvmet_subsystem}"
>
>         echo 0 > "${cfs_path}/namespaces/1/enable"
>         rmdir "${cfs_path}/namespaces/1/"
> @@ -80,16 +77,14 @@ _remove_nvmet_subsystem() {
>  _add_nvmet_subsys_to_port() {
>         local port="$1"
>         local nvmet_subsystem="$2"
> -       local nvmet_cfs="/sys/kernel/config/nvmet/"
>
> -       ln -s "${nvmet_cfs}/subsystems/${nvmet_subsystem}" \
> -               "${nvmet_cfs}/ports/${port}/subsystems/${nvmet_subsystem}"
> +       ln -s "${NVMET_CFG}/subsystems/${nvmet_subsystem}" \
> +               "${NVMET_CFG}/ports/${port}/subsystems/${nvmet_subsystem}"
>  }
>
>  _remove_nvmet_subsystem_from_port() {
>         local port="$1"
>         local nvmet_subsystem="$2"
> -       local nvmet_cfs="/sys/kernel/config/nvmet/"
>
> -       rm "${nvmet_cfs}/ports/${port}/subsystems/${nvmet_subsystem}"
> +       rm "${NVMET_CFG}/ports/${port}/subsystems/${nvmet_subsystem}"
>  }
> --
> 2.9.5
>
>
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