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paulmckrcuBoqun Feng
paulmckrcu
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Boqun Feng
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rcuscale: Update due to x86 not supporting none/voluntary preemption
As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such rcuscale scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Boqun Feng <boqun@kernel.org> Link: https://patch.msgid.link/20260303235903.1967409-2-paulmck@kernel.org
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Lines changed: 4 additions & 2 deletions

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  • tools/testing/selftests/rcutorture/configs/rcuscale

‎tools/testing/selftests/rcutorture/configs/rcuscale/TINY‎

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CONFIG_SMP=n
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CONFIG_PREEMPT_NONE=y
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CONFIG_PREEMPT_LAZY=y
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CONFIG_PREEMPT_NONE=n
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CONFIG_PREEMPT_VOLUNTARY=n
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CONFIG_PREEMPT=n
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CONFIG_PREEMPT_DYNAMIC=n

‎tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01‎

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CONFIG_SMP=y
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CONFIG_PREEMPT_NONE=y
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CONFIG_PREEMPT_LAZY=y
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CONFIG_PREEMPT_NONE=n
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CONFIG_PREEMPT_VOLUNTARY=n
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CONFIG_PREEMPT=n
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CONFIG_PREEMPT_DYNAMIC=n

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