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 17:07:44 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	josh@...htriplett.org
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 Wed, May 07, 2014 at 02:33:27PM -0700, josh@...htriplett.org wrote:
> 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_* .

Makes sense on both counts, thank you!  Give or take quoting, anyway!  ;-)

							Thanx, Paul

> > 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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