30 lines
978 B
Diff
30 lines
978 B
Diff
From: Thomas Gleixner <tglx@linutronix.de>
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Date: Sun, 17 Jul 2011 21:51:45 +0200
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Subject: locking: Disable spin on owner for RT
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.1-rt3.tar.xz
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Drop spin on owner for mutex / rwsem. We are most likely not using it
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but…
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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kernel/Kconfig.locks | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/kernel/Kconfig.locks
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+++ b/kernel/Kconfig.locks
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@@ -225,11 +225,11 @@ config ARCH_SUPPORTS_ATOMIC_RMW
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config MUTEX_SPIN_ON_OWNER
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def_bool y
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- depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
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+ depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW && !PREEMPT_RT_FULL
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config RWSEM_SPIN_ON_OWNER
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def_bool y
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- depends on SMP && RWSEM_XCHGADD_ALGORITHM && ARCH_SUPPORTS_ATOMIC_RMW
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+ depends on SMP && RWSEM_XCHGADD_ALGORITHM && ARCH_SUPPORTS_ATOMIC_RMW && !PREEMPT_RT_FULL
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config LOCK_SPIN_ON_OWNER
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def_bool y
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