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McKenney" , Frederic Weisbecker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnaldo Carvalho de Melo , Josh Poimboeuf , Paolo Bonzini , Arnd Bergmann , Jason Baron , Steven Rostedt , Ard Biesheuvel , Sami Tolvanen , "David S. Miller" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Mel Gorman , Andrew Morton , Masahiro Yamada , Han Shen , Rik van Riel , Jann Horn , Dan Carpenter , Oleg Nesterov , Juri Lelli , Clark Williams , Yair Podemsky , Marcelo Tosatti , Daniel Wagner , Petr Tesarik , Shrikanth Hegde Subject: [PATCH v7 04/31] rcutorture: Make TREE04 use CONFIG_RCU_DYNTICKS_TORTURE Date: Fri, 14 Nov 2025 16:01:06 +0100 Message-ID: <20251114150133.1056710-5-vschneid@redhat.com> In-Reply-To: <20251114150133.1056710-1-vschneid@redhat.com> References: <20251114150133.1056710-1-vschneid@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Stat-Signature: 9pk17k4dktybwg35r6q3wk71b1jzncjt X-Rspam-User: X-Rspamd-Queue-Id: 1D24F140013 X-Rspamd-Server: rspam01 X-HE-Tag: 1763132610-203566 X-HE-Meta: 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 rXnB50OM 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: We now have an RCU_EXPERT config for testing small-sized RCU dynticks counter: CONFIG_RCU_DYNTICKS_TORTURE. Modify scenario TREE04 to exercise to use this config in order to test a ridiculously small counter (2 bits). Link: http://lore.kernel.org/r/4c2cb573-168f-4806-b1d9-164e8276e66a@paulmck-laptop Suggested-by: Paul E. McKenney Signed-off-by: Valentin Schneider Reviewed-by: Paul E. McKenney Reviewed-by: Frederic Weisbecker --- tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 index dc4985064b3ad..67caf4276bb01 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 @@ -16,3 +16,4 @@ CONFIG_DEBUG_OBJECTS_RCU_HEAD=n CONFIG_RCU_EXPERT=y CONFIG_RCU_EQS_DEBUG=y CONFIG_RCU_LAZY=y +CONFIG_RCU_DYNTICKS_TORTURE=y -- 2.51.0