From: "Paul E. McKenney" <paulmck@kernel.org>
To: rcu@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com,
mingo@kernel.org, jiangshanlai@gmail.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org,
"Paul E. McKenney" <paulmck@kernel.org>
Subject: [PATCH rcu 1/8] rcutorture: Add CONFIG_PREEMPT_DYNAMIC=n to tiny scenarios
Date: Wed, 1 Dec 2021 16:46:27 -0800 [thread overview]
Message-ID: <20211202004634.3130489-1-paulmck@kernel.org> (raw)
In-Reply-To: <20211202004615.GA3130415@paulmck-ThinkPad-P17-Gen-1>
With CONFIG_PREEMPT_DYNAMIC=y, the kernel builds with CONFIG_PREEMPTION=y
because preemption can be enabled at runtime. This prevents any tests
of Tiny RCU or Tiny SRCU from running correctly. This commit therefore
explicitly sets CONFIG_PREEMPT_DYNAMIC=n for those scenarios.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
tools/testing/selftests/rcutorture/configs/rcu/SRCU-T | 1 +
tools/testing/selftests/rcutorture/configs/rcu/SRCU-U | 1 +
tools/testing/selftests/rcutorture/configs/rcu/TINY01 | 1 +
tools/testing/selftests/rcutorture/configs/rcu/TINY02 | 1 +
tools/testing/selftests/rcutorture/configs/rcuscale/TINY | 1 +
5 files changed, 5 insertions(+)
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T
index d6557c38dfe47..c70cf0405f248 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T
@@ -2,6 +2,7 @@ CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
#CHECK#CONFIG_TINY_SRCU=y
CONFIG_RCU_TRACE=n
CONFIG_DEBUG_LOCK_ALLOC=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U
index 6bc24e99862f9..bc9eeabaa1b18 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U
@@ -2,6 +2,7 @@ CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
#CHECK#CONFIG_TINY_SRCU=y
CONFIG_RCU_TRACE=n
CONFIG_DEBUG_LOCK_ALLOC=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY01 b/tools/testing/selftests/rcutorture/configs/rcu/TINY01
index 6db705e554874..0953c52fcfd76 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TINY01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY01
@@ -2,6 +2,7 @@ CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
#CHECK#CONFIG_TINY_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY02 b/tools/testing/selftests/rcutorture/configs/rcu/TINY02
index d8674264318d6..30439f6fc20e6 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TINY02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY02
@@ -2,6 +2,7 @@ CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
#CHECK#CONFIG_TINY_RCU=y
CONFIG_HZ_PERIODIC=y
CONFIG_NO_HZ_IDLE=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/TINY b/tools/testing/selftests/rcutorture/configs/rcuscale/TINY
index fb05ef5279b43..64e9490c1f797 100644
--- a/tools/testing/selftests/rcutorture/configs/rcuscale/TINY
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TINY
@@ -2,6 +2,7 @@ CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
#CHECK#CONFIG_TINY_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
--
2.31.1.189.g2e36527f23
next prev parent reply other threads:[~2021-12-02 0:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-02 0:46 [PATCH rcu 0/8] Torture-script updates for v5.17 Paul E. McKenney
2021-12-02 0:46 ` Paul E. McKenney [this message]
2021-12-02 0:46 ` [PATCH rcu 2/8] torture: Catch kvm.sh help text up with actual options Paul E. McKenney
2021-12-02 0:46 ` [PATCH rcu 3/8] torture: Make kvm-find-errors.sh report link-time undefined symbols Paul E. McKenney
2021-12-02 0:46 ` [PATCH rcu 4/8] torture: Retry download once before giving up Paul E. McKenney
2021-12-02 0:46 ` [PATCH rcu 5/8] rcutorture: Cause TREE02 and TREE10 scenarios to do more callback flooding Paul E. McKenney
2021-12-02 0:46 ` [PATCH rcu 6/8] rcutorture: Test RCU Tasks lock-contention detection Paul E. McKenney
2021-12-02 0:46 ` [PATCH rcu 7/8] torture: Fix incorrectly redirected "exit" in kvm-remote.sh Paul E. McKenney
2021-12-02 0:46 ` [PATCH rcu 8/8] torture: Properly redirect kvm-remote.sh "echo" commands Paul E. McKenney
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