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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 Subject: [PATCH v6 04/29] rcutorture: Make TREE04 use CONFIG_RCU_DYNTICKS_TORTURE Date: Fri, 10 Oct 2025 17:38:14 +0200 Message-ID: <20251010153839.151763-5-vschneid@redhat.com> In-Reply-To: <20251010153839.151763-1-vschneid@redhat.com> References: <20251010153839.151763-1-vschneid@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Rspamd-Queue-Id: BE97940018 X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: i7b8ef9i9bcrmud5e3x9ycb778yzxyxp X-HE-Tag: 1760110916-325219 X-HE-Meta: U2FsdGVkX19R1EcJF4kR0FwPeK4Gg4mNiWSn8DwieZTG/Qp7sjFh2AmJFgSIe8O6V8h2N3yyFkYNLWLXNM9Cdn2toeh/kY3FHg1xo6B5XeMpWK0MgA+w+zDGjtJ/OlCxrOXcCk+dsDfYVq4T8DSDZjgtQP0wAIGT4HKf820O62kzJS/xxLdf1VTO2F/olxU2JVseIXTyvj4R5sF1YoHd+icPM59DVRkN/4G8gqWwbiL1gRCe9bC3zSQHMnQvagOAeYEuGiIW21fpK06TMN2VlOd83PsPh7Vh/YXq05/IWoOeAM4fMSxOCE0S8vVxbMD+qTDqepDjKvEVzYE5z4zotRwZxAXzGe5WZGozhgkyQXB1NMFS5z37mxRus1fnOJ8MZcM5JJlLHI2ZiADDD6cehEjTEJ46lHMgg6RPOGUpDYoHm7d+FoxpXHeA41bJZgRQ1dg67L2cbQLPP/+u6pLho7rP2A5nZ5tyBFK1mwJQJLcYQtTSjIztHr1nT/wOt4dMzf/81f2HnSyLNat3g0MHrO6k4QR8Wg5H+3heI2/9FeZBkTGlxar0Ln3dyW4mKV85lyb6yreBxom+XAHDUQ/9uj1OzESdpZSOW3yg8pE9lUcSbwylGTle840Zv1dQvLa0x3JBcuq+f5LQd3JRo89VqrW0nHGRCUVpTR+sgihed3c6OB6WRe9xJtEzK3XNLSDdNM/L1OLgDgpeZ3TRhYsev6TeJX1axbvfSDc2w1FTPcS8twdlu4s0P7J/uwgEPltte7pZKUYuRjHTXFgp/XA3dJPTeeLwGLY7a9kqype5UxDFic1PwJGoOvkSvFHbwAWVTFAMDt+3+7BECTbQ5vOWuAWs84ZxC5ZBmHJighVpQAzP42cNyPGszEvwu0QFVBlprUrBhe+JIoAkXsR3i+ygqCF+DC/wwqhvS9LzXc98hrPU3vhaMMfnR9JsZ2xS6Mx6aWzv+qnzruDVmPBAFdn EHGFq2pu 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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