[PATCH blktests v2] nvme: add nvmf reset/disconnect during traffic test

[Chaitanya Kulkarni]

O
> +
> +	# do reset/remove operation
> +	echo "resetting controller"
> +	_nvme_reset_ctrl ${nvmedev}
> +	sleep 1
> +	echo "deleting controller"
> +	_nvme_delete_ctrl ${nvmedev}
> +
> +	echo "stopping background fio"
> +	{ kill $!; wait; } &> /dev/null

do we really need to kill the fio process explicitly ?
I think graceful termination of the traffic application should be
a part of this test without explicitly killing the process.

I ran the test with commenting above line it runs fine :-

blktests (master) # git diff
diff --git a/tests/nvme/040 b/tests/nvme/040
index d259784..0dce128 100755
--- a/tests/nvme/040
+++ b/tests/nvme/040
@@ -49,7 +49,7 @@ test() {
         _nvme_delete_ctrl ${nvmedev}

         echo "stopping background fio"
-       { kill $!; wait; } &> /dev/null
+#{ kill $!; wait; } &> /dev/null

         _remove_nvmet_subsystem_from_port "${port}" "${subsys}"
         _remove_nvmet_subsystem "${subsys}"
blktests (master) # ./check nvme/040
nvme/040 (test nvme fabrics controller reset/disconnect operation during 
I/O) [passed]
     runtime  8.119s  ...  8.084s
blktests (master) #

-ck