linux-kernel - Re: [PATCH tip/core/rcu 18/45] torture: Make "--dryrun script" use same environment as normal run

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Date:	Wed, 7 May 2014 14:33:27 -0700
From:	josh@...htriplett.org
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	niv@...ibm.com, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	darren@...art.com, fweisbec@...il.com, oleg@...hat.com, sbw@....edu
Subject: Re: [PATCH tip/core/rcu 18/45] torture: Make "--dryrun script" use
 same environment as normal run

On Mon, Apr 28, 2014 at 05:25:06PM -0700, Paul E. McKenney wrote:
> From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
> 
> In a normal torture-test run, the script inherits its environment
> variables, but this does not work when producing a script that is
> to run later.  Therefore, definitions and exports are prepended to
> a dryrun script but not to a script that is run immediately.  This
> commit reconciles this by placing definitions and exports at the
> beginning of the script in both cases.

Cleanup idea, not needed in this commit: This has gotten sufficiently
long to warrant a loop over a list of environment variables, or possibly
a loop over all environment variable starting with TORTURE_* .

> Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>

> ---
>  tools/testing/selftests/rcutorture/bin/kvm.sh | 28 ++++++++++++---------------
>  1 file changed, 12 insertions(+), 16 deletions(-)
> 
> diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
> index 8aa62a2dccb5..93a6c5a8517d 100644
> --- a/tools/testing/selftests/rcutorture/bin/kvm.sh
> +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
> @@ -241,8 +241,19 @@ END {
>  
>  # Generate a script to execute the tests in appropriate batches.
>  cat << ___EOF___ > $T/script
> -TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
> +CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
> +KVM="$KVM"; export KVM
> +KVPATH="$KVPATH"; export KVPATH
> +PATH="$PATH"; export PATH
> +TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
>  TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
> +TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
> +TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
> +TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
> +TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE";
> +	export TORTURE_QEMU_INTERACTIVE
> +TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
> +TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
>  if ! test -e $resdir
>  then
>  	mkdir -p "$resdir" || :
> @@ -371,21 +382,6 @@ ___EOF___
>  
>  if test "$dryrun" = script
>  then
> -	# Dump out the script, but define the environment variables that
> -	# it needs to run standalone.
> -	echo CONFIGFRAG="$CONFIGFRAG; export CONFIGFRAG"
> -	echo KVM="$KVM; export KVM"
> -	echo KVPATH="$KVPATH; export KVPATH"
> -	echo PATH="$PATH; export PATH"
> -	echo TORTURE_BUILDONLY="$TORTURE_BUILDONLY; export TORTURE_BUILDONLY"
> -	echo TORTURE_INITRD="$TORTURE_INITRD; export TORTURE_INITRD"
> -	echo TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG; export TORTURE_KMAKE_ARG"
> -	echo TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD; export TORTURE_QEMU_CMD"
> -	echo TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE;
> -		export TORTURE_QEMU_INTERACTIVE"
> -	echo TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC; export TORTURE_QEMU_MAC"
> -	echo "mkdir -p "$resdir" || :"
> -	echo "mkdir $resdir/$ds"
>  	cat $T/script
>  	exit 0
>  elif test "$dryrun" = sched
> -- 
> 1.8.1.5
> 
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