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SubjectRe: [PATCH tip/core/rcu 14/17] rcu: remove CONFIG_PROVE_RCU_DELAY
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Paul,

On Mon, 2014-07-07 at 15:38 -0700, Paul E. McKenney wrote:
> The CONFIG_PROVE_RCU_DELAY Kconfig parameter doesn't appear to be very
> effective at finding race conditions, so this commit removes it.
>
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Cc: Andi Kleen <ak@linux.intel.com>
> ---
> kernel/rcu/tree.c | 5 -----
> kernel/rcu/update.c | 3 ---

The commit explanation implies that this patch would also remove the
entry for PROVE_RCU_DELAY in lib/Kconfig.debug. Is there any reason to
keep it after this patch?

> tools/testing/selftests/rcutorture/configs/rcu/TREE01 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE02 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE02-T | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE03 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE05 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE06 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE07 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE08 | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE08-T | 1 -
> tools/testing/selftests/rcutorture/configs/rcu/TREE09 | 1 -
> 13 files changed, 19 deletions(-)

This doesn't touch a few other references in
tools/testing/selftests/rcutorture/. I have no idea how these tests
work, so I assume these references are still needed. Is that correct?


Paul Bolle



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