linux-kernel - Re: [PATCH tip/core/rcu 2/3] rcutorture: Test both RCU-sched and RCU-bh for Tiny RCU

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Message-ID: <20150513005929.GE14292@cloud>
Date:	Tue, 12 May 2015 17:59:29 -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,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	dhowells@...hat.com, edumazet@...gle.com, dvhart@...ux.intel.com,
	fweisbec@...il.com, oleg@...hat.com, bobby.prani@...il.com
Subject: Re: [PATCH tip/core/rcu 2/3] rcutorture: Test both RCU-sched and
 RCU-bh for Tiny RCU

On Tue, May 12, 2015 at 03:49:12PM -0700, Paul E. McKenney wrote:
> From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
> 
> Reported-by: "Ahmed, Iftekhar" <ahmedi@...d.oregonstate.edu>
> Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>

Could you elaborate a bit more on this patch (ideally in its commit
message)?  I see an addition of a command-line parameter to test rcu_bh;
is rcu-sched already tested elsewhere by some other config, or does this
parameter somehow enable testing both?

>  tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
> index 0f0802730014..6c1a292a65fb 100644
> --- a/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
> +++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
> @@ -1,2 +1,3 @@
>  rcupdate.rcu_self_test=1
>  rcupdate.rcu_self_test_bh=1
> +rcutorture.torture_type=rcu_bh
> -- 
> 1.8.1.5
> 
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